Weather in San Giuliano: December
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Average day temperature: | 54.3°F |
| Average night temperature: | 47.2°F | |
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Sea water temperature: | 60.0°F |
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Number of sunny days: | 15 days |
| Day length: | 9.0 - 9.2 hours | |
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Number of rainy days: | 4 days |
| Precipitation totals: | 3.0 in. | |
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forecast
| San Giuliano |
temperature
| San Giuliano |
Air temperature in December, °F
The highest day temperature during December of 2023 was 62°F. At the same time the lowest night temperature was 40°F. Day and night temperature averages during December were 54.0°F and 49.7°F.
Sea water temperature in San Giuliano in December, °F
The average sea water temperature in December of 2023 was 59.2°F. The highest and lowest sea temperatures during the month were 61.7°F and 57.9°F.
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 San Giuliano in December is 3.9 in. Other months of the year show relatively similar values.
The average wind speed value in December is 6.0 mph The wind's strength is relatively same during the whole 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: 3.6.
Best time for vacation in San Giuliano
San Giuliano on a weather map
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