Passo Fundo Weather in December
What's the weather like in Passo Fundo (Rio Grande do Sul) in December 2025?
The climate in Passo Fundo during December can be summarized as warm and wet.
December is in the summer in Passo Fundo and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around a comfortable 28°C (83°F), whilst at night 17°C (62°F) is normal.
| Daytime temperature | 28.1°C 82.6°F |
|---|---|
| Nightly temperature | 16.7°C 62.1°F |
| Average temperature | 22.4°C 72.3°F |
| Daily sunshine | 8.6 hrs |
| Avg rainfall | 164 mm 6.5 ins |
| Rainy days | 16 days |
| Sea temperature | 23°C 73.4°F |
| Humidity | 68% |
| Windspeed | 11.5kph 7 mph |
On average December is the 4th wettest month of the year in Passo Fundo with around 164mm 6.5 inches of rain making it a wet time to visit. This rainfall is typically spread over 16 days, although this may vary considerably.
On the flip side this corresponds to an average of 8.6 hours of sunshine per day.
December temperatures in Passo Fundo
December rainfall
December 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 Passo Fundo in December 2025.
Other monthly averages
Best places to visit in December
Passo Fundo weather stats
| Hottest month: | January | 28.3°C 82.9°F |
|---|---|---|
| Driest month: | April | 127mm 5ins |
| Sunniest month: | December | 8.6hrs |
| Coldest month: | July | 18.5°C 65.3°F |
| Wettest month: | September | 204mm 8ins |
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