Weather in Istanbul: December
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Average day temperature: | 52.9°F |
| Average night temperature: | 49.2°F | |
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Sea water temperature: | 53.5°F |
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Number of sunny days: | 10 days |
| Day length: | 8.6 - 9.5 hours | |
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Number of rainy days: | 4 days |
| Precipitation totals: | 2.2 in. | |
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forecast
| Istanbul |
temperature
| Istanbul |
Air temperature in December, °F
| Day temperature | Night temperature |
The highest day temperature during December of 2024 was 62°F. At the same time the lowest night temperature was 41°F. Daily and nightly averages during December were 52.1°F and 49.5°F.
Sea water temperature in Istanbul in December, °F
The average sea water temperature in December of 2024 was 54.1°F. The highest and lowest sea temperatures during the month were 56.8°F and 51.8°F.
| Sunny days | |
| Partly cloudy days | |
| Cloudy days |
Mostly all days in December are cloudy but sunny and partly cloudy days are also possible.
Precipitation total in December, in.
Precipitation total value in Istanbul in December is 2.2 in. Other months of the year show relatively similar values.
The average wind speed value in December is 10.9 mph
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: 4.4.
Best time for vacation in Istanbul
Istanbul on a weather map
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