The climate in Petrolina during December can be summarized as hot and reasonably dry.
December is in the summer in Petrolina and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around a warm 33°C (92°F), whilst at night 23°C (73°F) is normal.
Daytime temperature | 33.2°C 91.8°F |
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Nightly temperature | 22.6°C 72.7°F |
Average temperature | 27.9°C 82.2°F |
Daily sunshine | 8 hrs |
Avg rainfall | 67 mm 2.6 ins |
Rainy days | 15 days |
Sea temperature | 26.8°C 80.2°F |
Humidity | 55% |
Windspeed | 10.1kph 6 mph |
On average December is the 4th wettest month of the year in Petrolina with around 67mm 2.6 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 15 days, although this may vary considerably.
On the flip side this corresponds to an average of 8 hours of sunshine per day.
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 Petrolina in December 2025.
Best places to visit in December
Hottest month: | November | 33.6°C 92.5°F |
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Driest month: | August | 2mm 0.1ins |
Sunniest month: | September | 9.2hrs |
Coldest month: | June | 29.7°C 85.5°F |
Wettest month: | March | 107mm 4.2ins |