worldweather26°Cnear normal
usually 22°C–30°C
night: warmer than usual
rain: more rain than usual
wind: typical
Weather in São Paulo - 14-day forecast
Detailed weather forecast for São Paulo, Brazil: daytime and night temperature, rain, sunrise and sunset - today and for the next two weeks.
Forecast for the next days in São Paulo
today🌧️
26°💧 3.6 mm
Sun🌧️
17°💧 15.5 mm
Mon🌧️
12°💧 0.4 mm
Tue☁️
20°💧 0.8 mm
Wed🌧️
18°💧 22.3 mm
Thu🌧️
24°💧 18.9 mm
Fri🌧️
22°💧 0.8 mm
Sat🌧️
23°💧 1.3 mm
Forecast vs 1991-2020 climate normal
NASA POWERHow does the current forecast compare with normal?
We compare the coming days with weather usually observed at this time of year.
Monday 7 Sept in São Paulo, the forecast high is 12°C. Typical daytime temperatures at this time of year range from 22°C to 30°C, so it will be exceptionally cool. It is cooler than 99% of similar days.
17°Cexceptionally cool
usually 22°C–30°C
cooler than 95% of similar days
night: cooler than usual
rain: exceptionally wet
wind: stronger than usual
12°Cexceptionally cool
usually 22°C–30°C
cooler than 99% of similar days
night: cooler than usual
rain: typical rainfall
wind: typical
20°Cexceptionally cool
usually 22°C–30°C
cooler than 90% of similar days
night: exceptionally warm
rain: typical rainfall
wind: lighter than usual
18°Cexceptionally cool
usually 22°C–30°C
cooler than 94% of similar days
night: exceptionally warm
rain: exceptionally wet
wind: exceptionally light
24°Cnear normal
usually 22°C–30°C
night: exceptionally warm
rain: exceptionally wet
wind: lighter than usual
22°Ccooler than usual
usually 22°C–30°C
cooler than 79% of similar days
night: exceptionally warm
rain: typical rainfall
wind: stronger than usual
How warm was this week in previous years?
Each bar shows the average daily high during the same 7-day period in each year.
cooler yearstypical rangewarmer years2026 forecastcurrent forecast
From 1981 to 2025, the 5-11 Sept period averaged 26°C by day. The coolest year was 1996 (19°C) and the warmest was 2024 (33°C). The current forecast averages 20°C - lower than in 96% of historical years.
Historical reference: NASA POWER daily gridded data (MERRA-2), the 1991-2020 normal and a +/- 7-day calendar window. The typical range is the 20th-80th percentile. This is not a city weather-station reading and does not change the current forecast. NASA POWER Daily API.
14-day forecast - São Paulo
São Paulo 30 & 45-day weather - long-range outlook
Next 15 days · forecast
20°
around 17° at night · days with rain: 8
Weeks 3-4 · avg for September
26°
around 16° at night · rain chance 21%
Weeks 5-7 · avg for October
26°
around 18° at night · rain chance 25%
The 30 & 45-day outlook for São Paulo: the next 15 days are a numerical forecast updated daily - on average 20° by day and 17° at night. Further out we rely on multi-year climate averages: around 26° in September, and about 26° in October. Forecasts beyond two weeks are indicative only.
Day-by-day forecast for São Paulo
Saturday5 September 2026
🌧️26°moderate rain
Sunday6 September 2026
🌧️17°moderate rain
Monday7 September 2026
🌧️12°light rain
Tuesday8 September 2026
☁️20°broken clouds
Wednesday9 September 2026
🌧️18°heavy rain
Thursday10 September 2026
🌧️24°moderate rain
Friday11 September 2026
🌧️22°light rain
Saturday12 September 2026
🌧️23°light rain
Sunday13 September 2026
🌧️13°light rain
Monday14 September 2026
🌧️12°light rain
Tuesday15 September 2026
🌧️17°light rain
Wednesday16 September 2026
🌤️21°scattered clouds
Thursday17 September 2026
🌧️27°light rain
Friday18 September 2026
🌧️19°moderate rain
Saturday19 September 2026
🌧️27°light rain
UV index in São Paulo - is it safe to sunbathe?
Today the UV index in São Paulo is 7 (high) - unprotected fair skin can burn in about 30 minutes. SPF 30-50, a hat and sunglasses are a must. Better stay in shade between 11:00 and 15:00.
Air quality and smog in São Paulo
Air quality in São Paulo is currently good. Fine particulate PM2.5: 13.2 µg/m³, PM10: 14 µg/m³.
| City | PM2.5 (µg/m³) | PM10 (µg/m³) | Air quality |
|---|---|---|---|
| São Paulo | 13.2 | 14 | good |
Based on PM2.5 thresholds. Station readings, updated daily (last reading: 2026-09-04, 22:00).
São Paulo weather through the year
Upcoming public holidays in Brazil: Independence Day — 7 September · Our Lady of Aparecida — 12 October · All Souls' Day — 2 November.
Nearby and related places
FAQ - São Paulo weather
What is the weather like in São Paulo today?
Today it is about 26° during the day and 16° at night, moderate rain.
How far ahead can I check the forecast for São Paulo?
This page shows a detailed 14-day forecast plus the long-term monthly climate, so you can plan both a short trip and a holiday months ahead.