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Weather in Colombo

Western Province, Colombo District · Sri Lanka
6.9355 °, 79.8487 °

All dates and times below are local to Colombo (Asia/Colombo).

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Today at a glance

Forecast hours ahead in Colombo, 22:00 GMT+5:30–23:00 GMT+5:30 local time: 27.3 °C – 27.5 °C · up to 2% precipitation risk · wind up to 2.4 m/s.

Best upcoming time outside: – · 94/100 →

Facts behind this summary

Calculated by WeatherVerity from the forecast data shown on this page. Underlying forecast data: Open-Meteo · Hourly retrieved: · Asia/Colombo

Current conditions

Model estimate
28°C

Mainly clear

Feels like
33 °C
Humidity
79 %
Wind speed
2.7 m/s
Wind from
SW · 236 °
Precipitation (15 min)
0 mm
Valid at Retrieved Underlying forecast data: Open-Meteo

The first card shows the best upcoming or recommended two-hour period. The second shows the least favorable period. The full-day best, timeline and special weather windows are supporting details.

Best & worst time outside

General outdoor activity · 2 consecutive hours · Asia/Colombo

Today ·

Best upcoming time outside · Today

94/100 · Excellent

  • 27.1 °C – 27.5 °C
  • Light wind · Wind up to 2.4 m/s
  • Low precipitation risk · Up to 3% precipitation risk

Least favorable time outside · Today

52/100 · Fair

  • Precipitation forecast · Up to 88% precipitation risk
  • 29.4 °C – 30.4 °C
  • Wind up to 4 m/s

Already passed

Full-day details

Highest score over the full day · 94/100

Today covers the whole local day, including periods that have already passed.

00:00 is the end of the selected day.

Selected upcoming two-hour window for general outdoor activity in Colombo on 9 Sept 2026: 22:00 GMT+5:30–00:00 GMT+5:30 local time, WeatherVerity score 94/100. Least favorable time outside in Colombo on 9 Sept 2026: 09:00 GMT+5:30–11:00 GMT+5:30 local time. 52/100.

The local day at a glance Asia/Colombo

Selected period ·

Least favorable ·

Highest score over the full day ·

Now · Calculated at 21:35 GMT+5:30 local time

Hourly scores; gaps mean missing data. Earlier hours are faded.

Looking for better weather?

Compare selected places for this local day.

Find sunnier places Find warmer places Find drier places

Tomorrow ·

Recommended outdoor time · Tomorrow

69/100 · Good

  • Precipitation forecast · Up to 71% precipitation risk
  • 26 °C – 28.2 °C
  • Light wind · Wind up to 1.6 m/s

Least favorable time outside · Tomorrow

50/100 · Fair

  • Precipitation forecast · Up to 86% precipitation risk
  • Wind up to 4.8 m/s
  • 30.1 °C – 30.2 °C

A more practical start is preferred within two points of the highest score, in the same quality band.

Full-day details

Highest score over the full day · 71/100

Selected two-hour window for general outdoor activity in Colombo on 10 Sept 2026: 06:00 GMT+5:30–08:00 GMT+5:30 local time, WeatherVerity score 69/100. Least favorable time outside in Colombo on 10 Sept 2026: 11:00 GMT+5:30–13:00 GMT+5:30 local time. 50/100.

The local day at a glance Asia/Colombo

Selected period ·

Least favorable ·

Highest score over the full day ·

Calculated at 21:35 GMT+5:30 local time

Hourly scores; gaps mean missing data. Earlier hours are faded.

Looking for better weather?

Compare selected places for this local day.

Find sunnier places Find warmer places Find drier places

Day after tomorrow ·

Best time outside · Day after tomorrow

77/100 · Great

  • Up to 45% precipitation risk
  • 27 °C – 27.1 °C
  • Wind up to 3.2 m/s

Least favorable time outside · Day after tomorrow

46/100 · Fair

  • Precipitation forecast · Up to 92% precipitation risk
  • Wind up to 5.5 m/s
  • 29.6 °C – 30 °C
Full-day details

Selected two-hour window for general outdoor activity in Colombo on 11 Sept 2026: 04:00 GMT+5:30–06:00 GMT+5:30 local time, WeatherVerity score 77/100. Least favorable time outside in Colombo on 11 Sept 2026: 13:00 GMT+5:30–15:00 GMT+5:30 local time. 46/100.

The local day at a glance Asia/Colombo

Selected period ·

Least favorable ·

Calculated at 21:35 GMT+5:30 local time

Hourly scores; gaps mean missing data. Earlier hours are faded.

Looking for better weather?

Compare selected places for this local day.

Find sunnier places Find warmer places Find drier places

Best and least favorable are relative to this day. Scores describe outdoor comfort, not official warnings.

Find a weather window
Today · 9 Sept 2026

Least wind over 2 hours

Best available period

–

Outdoor Score: 65/100

Already passed

Poor conditions — best available period.

Precipitation may affect this activity · Temperatures outside the activity range · Light wind

Weather values and full answer

Temperature: 25.5–28.1 °C · Average wind: 1.6 m/s; maximum: 2.2 m/s · Precipitation risk: up to 80%

Lowest precipitation risk over 3 hours

Best available period

–

Outdoor Score: 93/100

In progress

Low precipitation risk · Temperatures outside the activity range

Weather values and full answer

Temperature: 27.5–28.2 °C · Average wind: 2.8 m/s; maximum: 3.1 m/s · Precipitation risk: up to 0%

Warmest 2-hour period

Best available period

–

Outdoor Score: 53/100

Already passed

Poor conditions — best available period.

Precipitation may affect this activity · Temperatures outside the activity range

Weather values and full answer

Temperature: 29.9–30.4 °C · Average wind: 4 m/s; maximum: 4.1 m/s · Precipitation risk: up to 88%

Coolest 2-hour period

Best available period

–

Outdoor Score: 66/100

Already passed

Poor conditions — best available period.

Precipitation may affect this activity · Temperatures outside the activity range · Light wind

Weather values and full answer

Temperature: 24.5–25.5 °C · Average wind: 1.9 m/s; maximum: 2.2 m/s · Precipitation risk: up to 86%

Best available daylight window

Best available period

–

Outdoor Score: 58/100

Already passed

Poor conditions — best available period.

Precipitation may affect this activity · Temperatures outside the activity range

Weather values and full answer

Temperature: 28.8–29.6 °C · Average wind: 4.3 m/s; maximum: 4.5 m/s · Precipitation risk: up to 24%

3 hours with low precipitation risk

Best available period

–

Outdoor Score: 94/100

In progress

Low precipitation risk · Temperatures outside the activity range · Light wind

Weather values and full answer

Temperature: 27.3–28.1 °C · Average wind: 2.5 m/s; maximum: 2.9 m/s · Precipitation risk: up to 2%

2 hours above 20 °C

Best available period

–

Outdoor Score: 94/100

In progress

Low precipitation risk · Temperatures outside the activity range · Light wind

Weather values and full answer

Temperature: 27.5–28.1 °C · Average wind: 2.7 m/s; maximum: 2.9 m/s · Precipitation risk: up to 0%

2 hours of clear daylight

No 2-hour clear daylight period on 9 Sept 2026.

Best available daylight window

Best available period

–

Outdoor Score: 58/100

Already passed

Poor conditions — best available period.

Precipitation may affect this activity · Temperatures outside the activity range

Weather values and full answer

Temperature: 28.8–29.6 °C · Average wind: 4.3 m/s; maximum: 4.5 m/s · Precipitation risk: up to 24%

Tomorrow · 10 Sept 2026

Least wind over 2 hours

Best available period

–

Outdoor Score: 71/100

Upcoming

Precipitation may affect this activity · Temperatures outside the activity range · Light wind

Weather values and full answer

Temperature: 25.3–26.5 °C · Average wind: 1.1 m/s; maximum: 1.6 m/s · Precipitation risk: up to 63%

Lowest precipitation risk over 3 hours

Best available period

–

Outdoor Score: 69/100

Upcoming

Poor conditions — best available period.

Precipitation may affect this activity · Temperatures outside the activity range · Light wind

Weather values and full answer

Temperature: 26.3–27.1 °C · Average wind: 2.2 m/s; maximum: 2.4 m/s · Precipitation risk: up to 18%

Warmest 2-hour period

Best available period

–

Outdoor Score: 50/100

Upcoming

Poor conditions — best available period.

Precipitation may affect this activity · Temperatures outside the activity range

Weather values and full answer

Temperature: 30.1–30.2 °C · Average wind: 4.6 m/s; maximum: 4.8 m/s · Precipitation risk: up to 86%

Coolest 2-hour period

Best available period

–

Outdoor Score: 71/100

Upcoming

Precipitation may affect this activity · Temperatures outside the activity range · Light wind

Weather values and full answer

Temperature: 25.3–26.2 °C · Average wind: 1.5 m/s; maximum: 2 m/s · Precipitation risk: up to 53%

Best available daylight window

Best available period

–

Outdoor Score: 58/100

Upcoming

Poor conditions — best available period.

Precipitation may affect this activity · Temperatures outside the activity range

Weather values and full answer

Temperature: 28.8–29.7 °C · Average wind: 4.3 m/s; maximum: 4.6 m/s · Precipitation risk: up to 61%

3 hours with low precipitation risk

No 3-hour period with precipitation risk at or below 20% and no precipitation codes on 10 Sept 2026.

Lowest precipitation risk over 3 hours

Best available period

–

Outdoor Score: 69/100

Upcoming

Poor conditions — best available period.

Precipitation may affect this activity · Temperatures outside the activity range · Light wind

Weather values and full answer

Temperature: 26.3–27.1 °C · Average wind: 2.2 m/s; maximum: 2.4 m/s · Precipitation risk: up to 18%

2 hours above 20 °C

Best available period

–

Outdoor Score: 71/100

Upcoming

Precipitation may affect this activity · Temperatures outside the activity range · Light wind

Weather values and full answer

Temperature: 25.3–26.2 °C · Average wind: 1.5 m/s; maximum: 2 m/s · Precipitation risk: up to 53%

2 hours of clear daylight

No 2-hour clear daylight period on 10 Sept 2026.

Best available daylight window

Best available period

–

Outdoor Score: 58/100

Upcoming

Poor conditions — best available period.

Precipitation may affect this activity · Temperatures outside the activity range

Weather values and full answer

Temperature: 28.8–29.7 °C · Average wind: 4.3 m/s; maximum: 4.6 m/s · Precipitation risk: up to 61%

Day after tomorrow · 11 Sept 2026

Least wind over 2 hours

Best available period

–

Outdoor Score: 68/100

Upcoming

Poor conditions — best available period.

Precipitation may affect this activity · Temperatures outside the activity range · Light wind

Weather values and full answer

Temperature: 25.5–26.1 °C · Average wind: 2.2 m/s; maximum: 2.7 m/s · Precipitation risk: up to 75%

Lowest precipitation risk over 3 hours

Best available period

–

Outdoor Score: 76/100

Upcoming

Temperatures outside the activity range

Weather values and full answer

Temperature: 27–27.4 °C · Average wind: 2.9 m/s; maximum: 3.2 m/s · Precipitation risk: up to 45%

Warmest 2-hour period

Best available period

–

Outdoor Score: 46/100

Upcoming

Poor conditions — best available period.

Precipitation may affect this activity · Temperatures outside the activity range

Weather values and full answer

Temperature: 30–30.1 °C · Average wind: 5.2 m/s; maximum: 5.3 m/s · Precipitation risk: up to 93%

Coolest 2-hour period

Best available period

–

Outdoor Score: 68/100

Upcoming

Poor conditions — best available period.

Precipitation may affect this activity · Temperatures outside the activity range · Light wind

Weather values and full answer

Temperature: 25.5–26.1 °C · Average wind: 2.2 m/s; maximum: 2.7 m/s · Precipitation risk: up to 75%

Best available daylight window

Best available period

–

Outdoor Score: 64/100

Upcoming

Poor conditions — best available period.

Precipitation may affect this activity · Temperatures outside the activity range

Weather values and full answer

Temperature: 27–28.7 °C · Average wind: 3 m/s; maximum: 3.4 m/s · Precipitation risk: up to 61%

3 hours with low precipitation risk

No 3-hour period with precipitation risk at or below 20% and no precipitation codes on 11 Sept 2026.

Lowest precipitation risk over 3 hours

Best available period

–

Outdoor Score: 76/100

Upcoming

Temperatures outside the activity range

Weather values and full answer

Temperature: 27–27.4 °C · Average wind: 2.9 m/s; maximum: 3.2 m/s · Precipitation risk: up to 45%

2 hours above 20 °C

Best available period

–

Outdoor Score: 77/100

Upcoming

Temperatures outside the activity range

Weather values and full answer

Temperature: 27–27.1 °C · Average wind: 2.7 m/s; maximum: 3.2 m/s · Precipitation risk: up to 45%

2 hours of clear daylight

No 2-hour clear daylight period on 11 Sept 2026.

Best available daylight window

Best available period

–

Outdoor Score: 64/100

Upcoming

Poor conditions — best available period.

Precipitation may affect this activity · Temperatures outside the activity range

Weather values and full answer

Temperature: 27–28.7 °C · Average wind: 3 m/s; maximum: 3.4 m/s · Precipitation risk: up to 61%

How WeatherVerity calculates this

Calculated by WeatherVerity from the forecast data shown on this page.

Underlying forecast data: Open-Meteo · CC BY 4.0

Hourly retrieved: · Fresh until:

Past hours are model estimates, not observations or a record of earlier forecasts.

Calculated by WeatherVerity from this forecast.

These are comfort scores, not confidence, accuracy or official warnings. Complete windows across each local day are considered; missing hours are not filled in.

Temperature and wind use both hourly endpoints. Precipitation probability applies to the hour ending at its timestamp. Window values are conservative maxima and temperature ranges, not continuous measurements.

Hourly precipitation amount, feels-like temperature, gusts and UV are not available in this forecast. Low precipitation risk does not guarantee a dry period. Clear weather codes in daylight do not measure sunshine duration.

Each hourly score combines precipitation, temperature and wind. Rain score = 100 − probability, capped at 30 when precipitation codes occur. Wind score loses 10 points per m/s above 2. Temperature loses 5 points per degree outside the activity range. Components stop at 0 and 100.

  • General outdoor activity: 10–25 °C; Weights: precipitation / temperature / wind 40% / 30% / 30%

Hourly scores are averaged across the window. Thunderstorms, freezing or heavy precipitation, wind ≥15 m/s, or temperature ≥35 °C or ≤−15 °C set the whole window score to zero. These are product rules, not official warning thresholds. Favorable requires at least 70 overall and at least 50 each hour. Ties compare rain, wind and temperature components, then earliest start. Best and worst use highest and lowest scores.

Weather scores are unchanged. Among windows within two points of the highest score and in the same quality band, starts from 06:00 to before 23:00 local time are preferred; 22:00–00:00 qualifies. Then score, daylight and the earliest start break ties. Daylight is optional, including in polar night or midnight sun. The absolute daily best is always retained. Least favorable stays at the actual minimum score; only tied minima use non-overlap and distance. Overlapping windows within a two-point range are grouped; small contrast means a spread of at most five points. A whole-day “no poor periods” statement requires complete coverage, all two-hour windows at least Good (60), and no hourly score in Poor/Very poor (below 40). These are presentation rules, not changes to meteorological scores.

Score labels

  • 90–100: Excellent
  • 75–89: Great
  • 60–74: Good
  • 40–59: Fair
  • 20–39: Poor
  • 0–19: Very poor
Sources & method

Through the day

Today · Wed 9 Sept · Asia/Colombo

Today's hourly temperature in ColomboModel forecast from 00:00 to 23:00, Asia/Colombo. Hourly temperatures range from 24.5 to 30.4 degrees Celsius. Exact values follow below. Gaps indicate missing values.22°28°33°Current hour00:00: 25.9 °C · Light drizzle01:00: 25.4 °C · Moderate drizzle02:00: 25.5 °C · Moderate drizzle03:00: 24.5 °C · Light rain showers04:00: 24.5 °C · Dense drizzle05:00: 25.9 °C · Light drizzle06:00: 25.5 °C · Moderate drizzle07:00: 26.5 °C · Light drizzle08:00: 28.1 °C · Light drizzle09:00: 29.4 °C · Light drizzle10:00: 29.9 °C · Light drizzle11:00: 30.4 °C · Light drizzle12:00: 30.2 °C · Light drizzle13:00: 30.1 °C · Light drizzle14:00: 29.8 °C · Light drizzle15:00: 29.6 °C · Light drizzle16:00: 29.3 °C · Light drizzle17:00: 28.8 °C · Mainly clear18:00: 28.3 °C · Mainly clear19:00: 28.2 °C · Partly cloudy20:00: 28.1 °C · Clear sky21:00: 27.9 °C · Mainly clear22:00: 27.5 °C · Partly cloudy23:00: 27.3 °C · Overcast00:0006:0012:0017:0023:00
  1. 26 °CLight drizzlePrecip. chance 79 %Wind 2.3 m/s
  2. 25 °CModerate drizzlePrecip. chance 82 %Wind 2.1 m/s
  3. 26 °CModerate drizzlePrecip. chance 84 %Wind 2.2 m/s
  4. 25 °CLight rain showersPrecip. chance 85 %Wind 1.8 m/s
  5. 25 °CDense drizzlePrecip. chance 86 %Wind 1.9 m/s
  6. 26 °CLight drizzlePrecip. chance 86 %Wind 1.4 m/s
  7. 26 °CModerate drizzlePrecip. chance 83 %Wind 2.2 m/s
  8. 27 °CLight drizzlePrecip. chance 80 %Wind 1.3 m/s
  9. 28 °CLight drizzlePrecip. chance 78 %Wind 1.8 m/s
  10. 29 °CLight drizzlePrecip. chance 82 %Wind 3.5 m/s
  11. 30 °CLight drizzlePrecip. chance 88 %Wind 3.9 m/s
  12. 30 °CLight drizzlePrecip. chance 88 %Wind 4 m/s
  13. 30 °CLight drizzlePrecip. chance 76 %Wind 4.1 m/s
  14. 30 °CLight drizzlePrecip. chance 59 %Wind 4.3 m/s
  15. 30 °CLight drizzlePrecip. chance 43 %Wind 4.4 m/s
  16. 30 °CLight drizzlePrecip. chance 32 %Wind 4.3 m/s
  17. 29 °CLight drizzlePrecip. chance 24 %Wind 4.5 m/s
  18. 29 °CMainly clearPrecip. chance 16 %Wind 3.8 m/s
  19. 28 °CMainly clearPrecip. chance 9 %Wind 3.2 m/s
  20. 28 °CPartly cloudyPrecip. chance 4 %Wind 3.1 m/s
  21. 28 °CClear skyPrecip. chance 0 %Wind 2.9 m/s
  22. 28 °CMainly clearPrecip. chance 0 %Wind 2.7 m/sCurrent hour
  23. 28 °CPartly cloudyPrecip. chance 0 %Wind 2.4 m/s
  24. 27 °COvercastPrecip. chance 2 %Wind 2.3 m/s

Hourly model forecast, including earlier hours; not measured observations. Source: Open-Meteo. Retrieved . Sources & method.

The next 7 days

Local dates · Asia/Colombo

Daily forecast for Colombo, Western Province, Colombo District, Sri Lanka. Source: Open-Meteo. Retrieved .
DayConditionsHigh / LowPrecip. chance*PrecipitationMax wind
Light rain showers
30 °C / 25 °C88 %6.5 mm4.5 m/s
Moderate drizzle
30 °C / 25 °C86 %5.1 mm4.8 m/s
Light rain showers
30 °C / 26 °C93 %8.8 mm5.5 m/s
Light rain showers
29 °C / 24 °C100 %21 mm4.6 m/s
Dense drizzle
29 °C / 25 °C92 %10.2 mm4.3 m/s
Moderate drizzle
29 °C / 25 °C90 %6.9 mm3.3 m/s
Light drizzle
30 °C / 25 °C86 %4.8 mm3.6 m/s

*Maximum precipitation probability for the day, including rain or snow. How to read these values.

WeatherVerity answer

Weather in Colombo today

Today

WeatherVerity forecast for Colombo: high 30 °C, low 25 °C. Light rain showers.

Maximum precipitation probability: 88 %. Precipitation: 6.5 mm.

Underlying forecast data: Open-Meteo · Retrieved

Tomorrow

WeatherVerity forecast for Colombo: high 30 °C, low 25 °C. Moderate drizzle.

Maximum precipitation probability: 86 %. Precipitation: 5.1 mm.

Underlying forecast data: Open-Meteo · Retrieved

Model forecasts, not measured observations. · Asia/Colombo

Verity Trust

Traceable forecast details, without claiming observed accuracy.

Forecast by
Open-Meteo
Published by
WeatherVerity
Last retrieved
Valid for
2026-09-08T18:30:00.000Z – 2026-09-11T18:30:00.000Z
Local time zone
Asia/Colombo
Data status
current: Fresh · hourly: Fresh · forecast: Fresh
Method
forecast-receipt-method-v2 · Full method
Forecast agreement
Not available
Forecast stability
Collecting data
Verified accuracy
Collecting data
What changed?

Collecting data

Only the same provider, product, place, unit, interval and exact valid time are compared.

Behind this forecast

Weather sources
Open-Meteo
Location source
GeoNames 1248991 via Open-Meteo
Local time zone
Asia/Colombo
Current retrieved
Forecast retrieved
Hourly retrieved
Page data last updated
Model run issued
Not supplied by this API

Current conditions are model estimates. Retrieval time tells you when we fetched the data, not when the weather model was run. Sources, units and method.