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Weather in São Paulo

Brazil
-23.5475 °, -46.6361 °

All dates and times below are local to São Paulo (America/Sao_Paulo).

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Today at a glance

Forecast hours ahead in São Paulo, 11:00 GMT-3–23:00 GMT-3 local time: 15.6 °C – 20.5 °C · up to 29% precipitation risk · wind up to 1.6 m/s.

Best upcoming time outside: – · 93/100 →

Facts behind this summary

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

Current conditions

Model estimate
16°C

Overcast

Feels like
16 °C
Humidity
82 %
Wind speed
1.1 m/s
Wind from
ENE · 75 °
Precipitation (15 min)
0 mm
Valid at Retrieved Underlying forecast data: Open-Meteo

Best & worst time outside

General outdoor activity · 2 consecutive hours · America/Sao_Paulo

Today ·

Best upcoming time outside · Today

93/100 · Excellent

  • Low precipitation risk · Up to 20% precipitation risk
  • Light wind · Wind up to 1 m/s
  • Temperatures within the activity range · 19 °C – 20.5 °C

Least favorable time outside · Today

62/100 · GoodStill good outdoors

  • Precipitation forecast · Up to 95% precipitation risk
  • Light wind · Wind up to 2.5 m/s
  • Temperatures within the activity range · 11.6 °C – 11.8 °C

Already passed

No truly poor periods in this day’s complete forecast.

Highest score over the full day · 94/100

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

Selected upcoming two-hour window for general outdoor activity in São Paulo on 2026-09-08: 17:00 GMT-3–19:00 GMT-3 local time, WeatherVerity score 93/100. Least favorable time outside in São Paulo on 2026-09-08: 00:00 GMT-3–02:00 GMT-3 local time. 62/100.

The local day at a glance America/Sao_Paulo

Selected period ·

Least favorable ·

Highest score over the full day ·

Now · Calculated at 10:30 GMT-3 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 ·

Best time outside · Tomorrow

92/100 · Excellent

  • Up to 21% precipitation risk
  • Light wind · Wind up to 1.2 m/s
  • Temperatures within the activity range · 15.2 °C – 15.4 °C

Least favorable time outside · Tomorrow

0/100 · Very poor

  • Precipitation forecast · Up to 98% precipitation risk
  • Wind up to 2.5 m/s
  • 21.7 °C – 23.3 °C

Thunderstorm. Severe conditions are forecast. This score is not a recommendation to go outside.

Selected two-hour window for general outdoor activity in São Paulo on 2026-09-09: 00:00 GMT-3–02:00 GMT-3 local time, WeatherVerity score 92/100. Least favorable time outside in São Paulo on 2026-09-09: 14:00 GMT-3–16:00 GMT-3 local time. 0/100.

The local day at a glance America/Sao_Paulo

Selected period ·

Least favorable ·

Calculated at 10:30 GMT-3 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

86/100 · Great

  • Up to 39% precipitation risk
  • Light wind · Wind up to 1.9 m/s
  • Temperatures within the activity range · 17.8 °C – 18.2 °C

Least favorable time outside · Day after tomorrow

0/100 · Very poor

  • Precipitation forecast · Up to 100% precipitation risk
  • Wind up to 3.5 m/s
  • 20.8 °C – 22.5 °C

Thunderstorm. Severe conditions are forecast. This score is not a recommendation to go outside.

Selected two-hour window for general outdoor activity in São Paulo on 2026-09-10: 04:00 GMT-3–06:00 GMT-3 local time, WeatherVerity score 86/100. Least favorable time outside in São Paulo on 2026-09-10: 14:00 GMT-3–16:00 GMT-3 local time. 0/100.

The local day at a glance America/Sao_Paulo

Selected period ·

Least favorable ·

Calculated at 10:30 GMT-3 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 · 2026-09-08

Least wind over 2 hours

Best available period

–

Outdoor Score: 92/100

Upcoming

Temperatures within the activity range · Light wind

Weather values and full answer

Temperature: 16.4–19.9 °C · Average wind: 0.5 m/s; maximum: 0.9 m/s · Precipitation risk: up to 22%

Lowest precipitation risk over 3 hours

Best available period

–

Outdoor Score: 72/100

Upcoming

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

Weather values and full answer

Temperature: 16.1–19 °C · Average wind: 1.3 m/s; maximum: 1.5 m/s · Precipitation risk: up to 16%

Warmest 2-hour period

Best available period

–

Outdoor Score: 72/100

Upcoming

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

Weather values and full answer

Temperature: 20.3–20.5 °C · Average wind: 0.7 m/s; maximum: 1 m/s · Precipitation risk: up to 27%

Coolest 2-hour period

Best available period

–

Outdoor Score: 62/100

Already passed

Poor conditions — best available period.

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

Weather values and full answer

Temperature: 11.6–11.8 °C · Average wind: 2.3 m/s; maximum: 2.5 m/s · Precipitation risk: up to 95%

Best available daylight window

Best available period

–

Outdoor Score: 89/100

Upcoming

Temperatures within the activity range · Light wind

Weather values and full answer

Temperature: 19.3–20.3 °C · Average wind: 1.1 m/s; maximum: 1.6 m/s · Precipitation risk: up to 29%

3 hours with low precipitation risk

Best available period

–

Outdoor Score: 94/100

In progress

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

Weather values and full answer

Temperature: 12.6–16.4 °C · Average wind: 1.5 m/s; maximum: 1.8 m/s · Precipitation risk: up to 18%

2 hours above 20 °C

Best available period

–

Outdoor Score: 72/100

Upcoming

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

Weather values and full answer

Temperature: 20.3–20.5 °C · Average wind: 0.7 m/s; maximum: 1 m/s · Precipitation risk: up to 27%

2 hours of clear daylight

No 2-hour clear daylight period on 2026-09-08.

Best available daylight window

Best available period

–

Outdoor Score: 89/100

Upcoming

Temperatures within the activity range · Light wind

Weather values and full answer

Temperature: 19.3–20.3 °C · Average wind: 1.1 m/s; maximum: 1.6 m/s · Precipitation risk: up to 29%

Tomorrow · 2026-09-09

Least wind over 2 hours

Best available period

–

Outdoor Score: 80/100

Upcoming

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

Weather values and full answer

Temperature: 15–15.1 °C · Average wind: 0.4 m/s; maximum: 0.5 m/s · Precipitation risk: up to 45%

Lowest precipitation risk over 3 hours

Best available period

–

Outdoor Score: 92/100

Upcoming

Temperatures within the activity range · Light wind

Weather values and full answer

Temperature: 15.1–15.4 °C · Average wind: 0.9 m/s; maximum: 1.2 m/s · Precipitation risk: up to 22%

Warmest 2-hour period

Best available period

–

Outdoor Score: 0/100

Upcoming

Severe forecast conditions — this relative best is not a recommendation to go outside.

Thunderstorm

Weather values and full answer

Temperature: 21.7–23.3 °C · Average wind: 2.5 m/s; maximum: 2.5 m/s · Precipitation risk: up to 98%

Coolest 2-hour period

Best available period

–

Outdoor Score: 72/100

Upcoming

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

Weather values and full answer

Temperature: 14.9–15 °C · Average wind: 0.4 m/s; maximum: 0.7 m/s · Precipitation risk: up to 55%

Best available daylight window

Best available period

–

Outdoor Score: 78/100

Upcoming

Temperatures within the activity range · Light wind

Weather values and full answer

Temperature: 15.1–18.5 °C · Average wind: 0.6 m/s; maximum: 0.6 m/s · Precipitation risk: up to 55%

3 hours with low precipitation risk

No 3-hour period with precipitation risk at or below 20% and no precipitation codes on 2026-09-09.

Lowest precipitation risk over 3 hours

Best available period

–

Outdoor Score: 92/100

Upcoming

Temperatures within the activity range · Light wind

Weather values and full answer

Temperature: 15.1–15.4 °C · Average wind: 0.9 m/s; maximum: 1.2 m/s · Precipitation risk: up to 22%

2 hours above 20 °C

Best available period

–

Outdoor Score: 66/100

Upcoming

Poor conditions — best available period.

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

Weather values and full answer

Temperature: 20.1–21.7 °C · Average wind: 1.6 m/s; maximum: 1.7 m/s · Precipitation risk: up to 88%

2 hours of clear daylight

No 2-hour clear daylight period on 2026-09-09.

Best available daylight window

Best available period

–

Outdoor Score: 78/100

Upcoming

Temperatures within the activity range · Light wind

Weather values and full answer

Temperature: 15.1–18.5 °C · Average wind: 0.6 m/s; maximum: 0.6 m/s · Precipitation risk: up to 55%

Day after tomorrow · 2026-09-10

Least wind over 2 hours

Best available period

–

Outdoor Score: 84/100

Upcoming

Temperatures within the activity range · Light wind

Weather values and full answer

Temperature: 17.8–18.3 °C · Average wind: 1 m/s; maximum: 2 m/s · Precipitation risk: up to 41%

Lowest precipitation risk over 3 hours

Best available period

–

Outdoor Score: 70/100

Upcoming

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

Weather values and full answer

Temperature: 18.2–18.8 °C · Average wind: 2.1 m/s; maximum: 2.9 m/s · Precipitation risk: up to 26%

Warmest 2-hour period

Best available period

–

Outdoor Score: 61/100

Upcoming

Poor conditions — best available period.

Precipitation may affect this activity · Temperatures within the activity range

Weather values and full answer

Temperature: 23.7–24.9 °C · Average wind: 4.9 m/s; maximum: 5.4 m/s · Precipitation risk: up to 78%

Coolest 2-hour period

Best available period

–

Outdoor Score: 84/100

Upcoming

Temperatures within the activity range · Light wind

Weather values and full answer

Temperature: 17.8–18.3 °C · Average wind: 1 m/s; maximum: 2 m/s · Precipitation risk: up to 41%

Best available daylight window

Best available period

–

Outdoor Score: 82/100

Upcoming

Temperatures within the activity range · Light wind

Weather values and full answer

Temperature: 18.3–21.9 °C · Average wind: 2 m/s; maximum: 2.1 m/s · Precipitation risk: up to 47%

3 hours with low precipitation risk

No 3-hour period with precipitation risk at or below 20% and no precipitation codes on 2026-09-10.

Lowest precipitation risk over 3 hours

Best available period

–

Outdoor Score: 70/100

Upcoming

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

Weather values and full answer

Temperature: 18.2–18.8 °C · Average wind: 2.1 m/s; maximum: 2.9 m/s · Precipitation risk: up to 26%

2 hours above 20 °C

Best available period

–

Outdoor Score: 77/100

Upcoming

Temperatures within the activity range

Weather values and full answer

Temperature: 20.1–23.7 °C · Average wind: 2.4 m/s; maximum: 3.7 m/s · Precipitation risk: up to 56%

2 hours of clear daylight

No 2-hour clear daylight period on 2026-09-10.

Best available daylight window

Best available period

–

Outdoor Score: 82/100

Upcoming

Temperatures within the activity range · Light wind

Weather values and full answer

Temperature: 18.3–21.9 °C · Average wind: 2 m/s; maximum: 2.1 m/s · Precipitation risk: up to 47%

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

WeatherVerity answer

Weather in São Paulo today

Today

WeatherVerity forecast for São Paulo: high 21 °C, low 12 °C. Moderate rain showers.

Maximum precipitation probability: 98 %. Precipitation: 6 mm.

Underlying forecast data: Open-Meteo · Retrieved

Tomorrow

WeatherVerity forecast for São Paulo: high 23 °C, low 15 °C. Thunderstorm.

Maximum precipitation probability: 98 %. Precipitation: 7.9 mm.

Underlying forecast data: Open-Meteo · Retrieved

Model forecasts, not measured observations. · America/Sao_Paulo

Through the day

Today · Tue 8 Sept · America/Sao_Paulo

Today's hourly temperature in São PauloModel forecast from 00:00 to 23:00, America/Sao_Paulo. Hourly temperatures range from 11.6 to 20.5 degrees Celsius. Exact values follow below. Gaps indicate missing values.9°16°23°Current hour00:00: 11.8 °C · Light rain showers01:00: 11.7 °C · Moderate rain showers02:00: 11.6 °C · Moderate drizzle03:00: 11.9 °C · Light drizzle04:00: 11.9 °C · Light drizzle05:00: 11.8 °C · Light drizzle06:00: 11.8 °C · Overcast07:00: 12.1 °C · Overcast08:00: 12.6 °C · Overcast09:00: 13.4 °C · Overcast10:00: 14.9 °C · Overcast11:00: 16.4 °C · Overcast12:00: 18.4 °C · Overcast13:00: 19.9 °C · Overcast14:00: 19.3 °C · Overcast15:00: 20.3 °C · Partly cloudy16:00: 20.5 °C · Light drizzle17:00: 20.5 °C · Mainly clear18:00: 19.5 °C · Overcast19:00: 19 °C · Overcast20:00: 17.8 °C · Light drizzle21:00: 16.9 °C · Light drizzle22:00: 16.1 °C · Clear sky23:00: 15.6 °C · Mainly clear00:0006:0012:0017:0023:00
  1. 12 °CLight rain showersPrecip. chance 98 %Wind 2.5 m/s
  2. 12 °CModerate rain showersPrecip. chance 95 %Wind 2.2 m/s
  3. 12 °CModerate drizzlePrecip. chance 88 %Wind 2.5 m/s
  4. 12 °CLight drizzlePrecip. chance 80 %Wind 2.3 m/s
  5. 12 °CLight drizzlePrecip. chance 75 %Wind 2.4 m/s
  6. 12 °CLight drizzlePrecip. chance 69 %Wind 2.1 m/s
  7. 12 °COvercastPrecip. chance 61 %Wind 2.1 m/s
  8. 12 °COvercastPrecip. chance 47 %Wind 1.9 m/s
  9. 13 °COvercastPrecip. chance 30 %Wind 1.8 m/s
  10. 13 °COvercastPrecip. chance 18 %Wind 1.8 m/s
  11. 15 °COvercastPrecip. chance 14 %Wind 1.4 m/sCurrent hour
  12. 16 °COvercastPrecip. chance 16 %Wind 0.9 m/s
  13. 18 °COvercastPrecip. chance 18 %Wind 0.4 m/s
  14. 20 °COvercastPrecip. chance 22 %Wind 0.3 m/s
  15. 19 °COvercastPrecip. chance 26 %Wind 1.6 m/s
  16. 20 °CPartly cloudyPrecip. chance 29 %Wind 0.9 m/s
  17. 21 °CLight drizzlePrecip. chance 27 %Wind 0.4 m/s
  18. 21 °CMainly clearPrecip. chance 24 %Wind 1 m/s
  19. 20 °COvercastPrecip. chance 20 %Wind 0.3 m/s
  20. 19 °COvercastPrecip. chance 17 %Wind 0.7 m/s
  21. 18 °CLight drizzlePrecip. chance 15 %Wind 1.5 m/s
  22. 17 °CLight drizzlePrecip. chance 14 %Wind 1.5 m/s
  23. 16 °CClear skyPrecip. chance 16 %Wind 1.2 m/s
  24. 16 °CMainly clearPrecip. chance 19 %Wind 1 m/s

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

The next 7 days

Local dates · America/Sao_Paulo

Daily forecast for São Paulo, Brazil. Source: Open-Meteo. Retrieved .
DayConditionsHigh / LowPrecip. chance*PrecipitationMax wind
Moderate rain showers
21 °C / 12 °C98 %6 mm2.5 m/s
Thunderstorm
23 °C / 15 °C98 %7.9 mm3.7 m/s
Thunderstorm
25 °C / 18 °C100 %11.5 mm5.4 m/s
Moderate drizzle
27 °C / 20 °C89 %2.2 mm5.6 m/s
Thunderstorm with light hail
27 °C / 15 °C92 %21.4 mm3.8 m/s
Dense drizzle
15 °C / 13 °C90 %13 mm3.8 m/s
Light rain showers
17 °C / 13 °C99 %19.8 mm3.2 m/s

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

Behind this forecast

Weather sources
Open-Meteo
Location source
GeoNames 3448439 via Open-Meteo
Local time zone
America/Sao_Paulo
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.