Lake Geneva Weather: August
 |
Average Day Temperature: | 81.7°F |
|
Average Night Temperature: | 65.5°F |
|
Sea Water Temperature: | 53.6°F |
|
Number of Sunny Days: | 13 days |
| Sunshine Hours: | 13.2 - 14.5 hours | |
|
Number of Rainy Days: | 2 days |
| Precipitation Totals: | 0.9 in | |
| detailed information | ||
forecast
| Lake Geneva |
Temperature
| Lake Geneva |
Air Temperature in August, °F
The highest day temperature in August 2025 was 99°F. The lowest night temperature was 41°F. The average values for day and night temperatures during August were 81.6°F и 61.2°F respectivly.
Lake Geneva Water Sea Temperature in August, °F
The average sea surface temperature in August 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 August are sunny but you can also expect cloudy and gloomy days.
Precipitation Totals in August, in
Precipitation total in August for Lake Geneva is 0.9 in.
The average wind speed in August is 7.5 mph. It makes August one of the most windless months of the year for Lake Geneva.
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 August is 8.8 hours.
Lake Geneva on the Weather Map
| Chicago |  |
-2 |
| Hawaii | |
+78 |
| Honolulu | |
+78 |
| Houston | |
+44 |
| Las Vegas |  |
+40 |
| Los Angeles | |
+52 |
| Maui | |
+72 |
| Miami | |
+72 |
| Miami Beach |  |
+80 |
| New York | |
+18 |
| San Diego | |
+54 |
| San Francisco | |
+46 |
| Sarasota | |
+62 |
| Tampa | |
+62 |
| Washington | |
+28 |
| 0300 |  |
-8°F | NE 11 mph |
| 0600 | |
2°F | NE 11 mph |
| 0900 |  |
10°F | NE 11 mph |
| 1200 |  |
20°F | NE 14 mph |
| 1500 |  |
24°F | NE 14 mph |
| 1800 | |
24°F | NE 13 mph |
| 2100 | |
26°F | NE 13 mph |
| 0000 | |
26°F | E 14 mph |