Weather in Giresun: December
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Average day temperature: | 51.4°F |
| Average night temperature: | 45.2°F | |
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Sea water temperature: | 55.3°F |
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Number of sunny days: | 13 days |
| Day length: | 9.2 - 9.5 hours | |
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Number of rainy days: | 5 days |
| Precipitation totals: | 2.8 in. | |
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forecast
| Giresun |
temperature
| Giresun |
Air temperature in December, °F
The highest day temperature during December of 2025 was 60°F. At the same time the lowest night temperature was 33°F. Daily and nightly averages during December were 49.9°F and 44.9°F.
Sea water temperature in Giresun in December, °F
The average sea water temperature in December of 2025 was 57.3°F. The highest and lowest sea temperatures during the month were 60.4°F and 54.3°F.
Number of sunny, partly cloudy and cloudy days in December is almost equal.
Precipitation total in December, in.
Precipitation total value in Giresun in December is 3.4 in. Other months of the year show relatively similar values.
The average wind speed value in December is 5.6 mph It makes December one of the most windy months of the year.
This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in December is: 4.7.
Best time for vacation in Giresun
Giresun on a weather map
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