Weather in Nettuno: December
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Average day temperature: | 57.2°F |
| Average night temperature: | 51.4°F | |
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Sea water temperature: | 62.5°F |
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Number of sunny days: | 14 days |
| Day length: | 9.2 - 9.4 hours | |
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Number of rainy days: | 5 days |
| Precipitation totals: | 2.9 in. | |
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Air temperature in December, °F
| Day temperature | Night temperature |
The highest day temperature during December of 2024 was 58°F. At the same time the lowest night temperature was 42°F. Daily and nightly averages during December were 55.0°F and 49.6°F.
Sea water temperature in Nettuno in December, °F
The average sea water temperature in December of 2024 was 63.2°F. The highest and lowest sea temperatures during the month were 65.3°F and 61.0°F.
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| Partly cloudy days | |
| Cloudy days |
Number of sunny, partly cloudy and cloudy days in December is almost equal.
Precipitation total in December, in.
Precipitation total value in Nettuno in December is 3.6 in. Other months of the year show relatively similar values.
The average wind speed value in December is 8.8 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: 5.1.
Best time for vacation in Nettuno
Nettuno on a weather map
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