Lake Geneva Weather: December
 |
Average Day Temperature: | 31.7°F |
|
Average Night Temperature: | 24.9°F |
|
Sea Water Temperature: | 34.1°F |
|
Number of Sunny Days: | 8 days |
| Sunshine Hours: | 9.0 - 9.3 hours | |
|
Number of Rainy Days: | 1 day |
| Precipitation Totals: | 0.6 in | |
| detailed information | ||
forecast
| Lake Geneva |
Temperature
| Lake Geneva |
Air Temperature in December, °F
The highest day temperature in December 2025 was 48°F. The lowest night temperature was -14°F. The average values for day and night temperatures during December were 26.5°F и 16.0°F respectivly.
Lake Geneva Water Sea Temperature in December, °F
The average sea surface temperature in December 2025 for Lake Geneva was 30.0°F. The maximum and minimum values were 30.0°F and 30.0°F respectively.
Most of the days in December are gloomy but you can also expect sunny days.
Precipitation Totals in December, in
Precipitation total in December for Lake Geneva is 0.6 in. It makes december one of the least rainy months of the year.
The average wind speed in December is 10.0 mph.
We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Lake Geneva in December is 3.8 hours.
Lake Geneva on the Weather Map
| Chicago |  |
+42 |
| Hawaii |  |
+74 |
| Honolulu | |
+74 |
| Houston |  |
+74 |
| Las Vegas |  |
+36 |
| Los Angeles | |
+42 |
| Maui | |
+68 |
| Miami | |
+76 |
| Miami Beach | |
+78 |
| New York | |
+38 |
| San Diego | |
+46 |
| San Francisco | |
+42 |
| Sarasota | |
+68 |
| Tampa | |
+68 |
| Washington |  |
+36 |
| 0900 |  |
38°F | SE 18 mph |
| 1200 |  |
40°F | SE 16 mph |
| 1500 |  |
40°F | S 9 mph |
| 1800 |  |
34°F | SW 5 mph |
| 2100 | |
30°F | W 6 mph |
| 0000 | |
30°F | W 6 mph |
| 0300 | |
28°F | W 6 mph |
| 0600 | |
30°F | SW 4 mph |