Guarujá Weather in January
What's the weather like in Guarujá (São Paulo) in January 2025?
The climate in Guarujá during January can be summarized as hot, humid and very wet.
January is in the summer in Guarujá and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around a muggy 29°C (84°F), whilst at night 21°C (70°F) is normal.
| Daytime temperature | 28.6°C 83.5°F |
|---|---|
| Nightly temperature | 21°C 69.8°F |
| Average temperature | 24.8°C 76.6°F |
| Daily sunshine | 5.3 hrs |
| Avg rainfall | 331 mm 13 ins |
| Rainy days | 20 days |
| Sea temperature | 26°C 78.9°F |
| Humidity | 80% |
| Windspeed | 9.4kph 6 mph |
On average January is the wettest month of the year in Guarujá with around 331mm 13 inches of rain making it a very wet time to visit. This rainfall is typically spread over 20 days, although this may vary considerably.
On the flip side this corresponds to an average of 5.3 hours of sunshine per day.
January temperatures in Guarujá
January rainfall
January 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 Guarujá in January 2025.
Other monthly averages
Best places to visit in January
Guarujá weather stats
| Hottest month: | February | 28.6°C 83.5°F |
|---|---|---|
| Driest month: | August | 106mm 4.2ins |
| Sunniest month: | July | 5.2hrs |
| Coldest month: | July | 22.8°C 73°F |
| Wettest month: | January | 331mm 13ins |
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