Sao Paulo, Brazil Climate & Monthly Averages
Sao Paulo has a humid subtropical climate. January is the hottest month, averaging 81° by day; July is the coldest at 72°.
Rain, not cold, divides the year in Sao Paulo
Expect hot, humid summers and generally mild winters in Sao Paulo: that is what a humid subtropical climate means in practice. Highs peak at 81°F (27°C) in January and fall to 72°F (22°C) by July, with 8.9 hours of sun on an average day.
The wet-and-dry rhythm at a glance
July sits at the other end of the year: 72°F (22°C) by day, 53°F (12°C) at night. January is the warm end of the year, averaging 81°F (27°C) by day and 66°F (19°C) overnight. Across the gridded 2015-2024 daily record, the highest daily maximum for this location was 101°F (38°C) and the lowest daily minimum 35°F (1°C). Relative humidity averages 81% across the year, more humid than roughly 88% of the cities we track.
Between the average January and the average July lie 6°C, a narrower spread than about 83% of the cities we track. Six of the twelve months pair mild highs with fewer than twelve wet days; the longest unbroken run is April through September. The wettest month is January (8.8 inches (224 mm) across 24 days) and the driest July. December is the brightest month at 9.8 hours of sun a day, against an annual average of 8.9.
More climate facts for Sao Paulo
- Hottest month: January - highs near 81°F (27°C)
- Coldest month: July - highs near 72°F (22°C)
- Decade extremes (2015-2024): 101°F (38°C) high · 35°F (1°C) low
- Wettest month: January (24 rainy days) · Sunniest: December (9.8 h sun/day)
- Climate type: humid subtropical
- Annual swing: 6°C between the average warmest and coolest month · day to night: 9°C
- Average humidity: 81%
Choosing the right part of the year in Sao Paulo
Choose dates by rain, not just temperature
The best time to visit Sao Paulo is generally May to September, when warm days, manageable rainfall and plenty of daylight line up. Daytime temperatures in that window sit near 74°F (23°C), with rain on about 6 days a month. For the same question asked the other way round, see where else is warm in May.
What the humidity changes
Pack for Sao Paulo with light clothing for the warm months and proper waterproofs rather than an umbrella - wet days are the norm here. Note the gap between afternoon and night: January pairs 81°F (27°C) with 66°F (19°C).
Warm all year: the monthly rain pattern
Each card shows the average high and low. The bar places that month between Sao Paulo's coldest night and warmest afternoon.
January
- Rain
- 24 days
- Sunshine
- 9.5 h
- Daylight
- 13.4 h
February
- Rain
- 19 days
- Sunshine
- 9.4 h
- Daylight
- 12.9 h
March
- Rain
- 19 days
- Sunshine
- 9.5 h
- Daylight
- 12.3 h
April
- Rain
- 10 days
- Sunshine
- 9.2 h
- Daylight
- 11.6 h
May
- Rain
- 8 days
- Sunshine
- 8.2 h
- Daylight
- 11.0 h
June
- Rain
- 6 days
- Sunshine
- 8.1 h
- Daylight
- 10.7 h
July
- Rain
- 3 days
- Sunshine
- 8.8 h
- Daylight
- 10.8 h
August
- Rain
- 6 days
- Sunshine
- 8.3 h
- Daylight
- 11.3 h
September
- Rain
- 8 days
- Sunshine
- 9.1 h
- Daylight
- 12.0 h
October
- Rain
- 15 days
- Sunshine
- 8.2 h
- Daylight
- 12.7 h
November
- Rain
- 17 days
- Sunshine
- 9.0 h
- Daylight
- 13.3 h
December
- Rain
- 21 days
- Sunshine
- 9.8 h
- Daylight
- 13.6 h
Looking for warmer alternatives? Browse warm places by month, or compare Sao Paulo's coolest part of the year: June, July, May.
Monthly temperature and rain table
| Month | High | Low | Rain days | Precipitation | Sunshine | Daylight | Wet-day chance | Humidity |
|---|---|---|---|---|---|---|---|---|
| January | 81° | 66° | 24 | 8.8 in | 9.5 h/day | 13.4 h | 77% | 83% |
| February | 80° | 65° | 19 | 6.6 in | 9.4 h/day | 12.9 h | 68% | 84% |
| March | 80° | 65° | 19 | 5.8 in | 9.5 h/day | 12.3 h | 61% | 85% |
| April | 77° | 61° | 10 | 2.3 in | 9.2 h/day | 11.6 h | 33% | 83% |
| May | 73° | 57° | 8 | 2.0 in | 8.2 h/day | 11.0 h | 25% | 81% |
| June | 71° | 55° | 6 | 1.7 in | 8.1 h/day | 10.7 h | 20% | 80% |
| July | 72° | 53° | 3 | 1.2 in | 8.8 h/day | 10.8 h | 11% | 76% |
| August | 73° | 54° | 6 | 1.9 in | 8.3 h/day | 11.3 h | 18% | 76% |
| September | 79° | 59° | 8 | 2.7 in | 9.1 h/day | 12.0 h | 26% | 75% |
| October | 78° | 61° | 15 | 4.5 in | 8.2 h/day | 12.7 h | 49% | 81% |
| November | 78° | 61° | 17 | 5.6 in | 9.0 h/day | 13.3 h | 55% | 82% |
| December | 80° | 64° | 21 | 6.4 in | 9.8 h/day | 13.6 h | 68% | 82% |
How Sao Paulo compares for rain and warmth
- Sao Paulo sits close to the middle of our dataset on most measures: 67°F (20°C) as an annual average, 49.3 inches (1253 mm) of precipitation and 8.9 hours of sun a day.
These comparisons use the same ten-year window for every city in the dataset.
How the calendar changes in warm-weather Sao Paulo
Spring (September through November)
Through spring, Sao Paulo settles into easy warmth: 78°F (26°C) by day, 60°F (16°C) after dark, and rain falls on around 40 of the 90 days.
Summer (December through February)
Summer brings comfortable warmth here - highs near 80°F (27°C), nights near 65°F (18°C), and rain falls on around 64 of the 90 days.
Fall (March through May)
Through fall, Sao Paulo settles into easy warmth: 77°F (25°C) by day, 61°F (16°C) after dark, and rain falls on around 36 of the 90 days.
Winter (June through August)
Through winter, Sao Paulo brings comfortable warmth: 72°F (22°C) by day, 54°F (12°C) after dark, and rain comes on about 15 days over the three months.
Questions about heat and rain in Sao Paulo
How warm is Sao Paulo on average?
How often does it rain in Sao Paulo?
How humid does Sao Paulo get?
Is Sao Paulo cold in winter?
Sao Paulo temperature extremes in the 2015–2024 dataset
Derived from ERA5 reanalysis data, 2015–2024. Official station records may differ. Need another precipitation unit? Use the rainfall converter.