Horizontina Weather in December
What's the weather like in Horizontina (Rio Grande do Sul) in December 2025?
The climate in Horizontina during December can be summarized as hot and damp.
December is in the summer in Horizontina and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around 31°C (88°F), whilst at night 19°C (65°F) is normal.
| Daytime temperature | 31.1°C 87.9°F |
|---|---|
| Nightly temperature | 18.6°C 65.4°F |
| Average temperature | 24.8°C 76.6°F |
| Daily sunshine | 8.7 hrs |
| Avg rainfall | 102 mm 4 ins |
| Rainy days | 11 days |
| Sea temperature | 22.7°C 72.9°F |
| Humidity | 67% |
| Windspeed | 11.9kph 7 mph |
On average December is the driest month of the year in Horizontina with around 102mm 4 inches of rain making it a damp time to visit. This rainfall is typically spread over 11 days, although this may vary considerably.
On the flip side this corresponds to an average of 8.7 hours of sunshine per day.
December temperatures in Horizontina
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 Horizontina in December 2025.
Other monthly averages
Best places to visit in December
Horizontina weather stats
| Hottest month: | January | 31.5°C 88.7°F |
|---|---|---|
| Driest month: | December | 102mm 4ins |
| Sunniest month: | December | 8.7hrs |
| Coldest month: | June | 20.5°C 68.9°F |
| Wettest month: | October | 145mm 5.7ins |
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