Cosmópolis Weather in March
What's the weather like in Cosmópolis (São Paulo) in March 2026?
The climate in Cosmópolis during March can be summarized as warm, humid and wet.
March is in the fall / autumn in Cosmópolis and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around a muggy 28°C (82°F), whilst at night 17°C (63°F) is normal.
| Daytime temperature | 27.9°C 82.1°F |
|---|---|
| Nightly temperature | 17.2°C 62.9°F |
| Average temperature | 22.5°C 72.5°F |
| Daily sunshine | 7 hrs |
| Avg rainfall | 149 mm 5.9 ins |
| Rainy days | 17 days |
| Sea temperature | 26.4°C 79.5°F |
| Humidity | 76% |
| Windspeed | 7.6kph 5 mph |
On average March is the 4th wettest month of the year in Cosmópolis with around 149mm 5.9 inches of rain making it a wet time to visit. This rainfall is typically spread over 17 days, although this may vary considerably.
On the flip side this corresponds to an average of 7 hours of sunshine per day.
March temperatures in Cosmópolis
March rainfall
March hourly sunshine
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Cosmópolis in March 2025.
Other monthly averages
Cosmópolis weather stats
| Hottest month: | February | 27.8°C 82°F |
|---|---|---|
| Driest month: | July | 22mm 0.9ins |
| Sunniest month: | July | 7.8hrs |
| Coldest month: | July | 23.2°C 73.8°F |
| Wettest month: | January | 238mm 9.4ins |
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