The best times to visit Lake Geneva for ideal weather are

May 21st to September 30th

based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.

 

 


Other Lake Geneva Travel Info

Weather in Lake Geneva

Temperature

Average temperatures in Lake Geneva vary drastically. Considering humidity, temperatures feel cold for about half of the year and otherwise nice with a very low chance of rain or snow throughout the year. The area is somewhat temperate — in the 49th percentile for pleasant weather — compared to tourist destinations worldwide. Weeks with ideal weather are listed above. If you’re looking for the very warmest time to visit Lake Geneva, the hottest months are July, August, and then June. See average monthly temperatures below. The warmest time of year is generally mid July where highs are regularly around 82.9°F (28.3°C) with temperatures rarely dropping below 60.3°F (15.7°C) at night.

Lake Geneva Temperatures (Fahrenheit)

Key
High
Average
Low

Lake Geneva Temperatures (Celsius)

Key
High
Average
Low

“Feels-Like” Temperatures

The way we experience weather isn’t all about temperature. Higher temperatures affect us much more at higher humidity, and colder temperatures feel piercing with high winds. Our perceived temperatures factor in humidity and wind chill to better represent how hot or cold the day feels to a person.

Lake Geneva Perceived Temperature (F)

Key
High
Average
Low

Lake Geneva Perceived Temperature (C)

Key
High
Average
Low

 

Average Lake Geneva Temperatures by Month

Daily highs (averaged for the month) usually give the best indication of the weather. A significantly lower mean and low generally just means it gets colder at night.

Show Fahrenheit

Month Avg. High (°F) Avg. Mean (°F) Avg. Low (°F)
Jan 28.2 19.7 11.5
Feb 29.2 20.7 12.5
Mar 44.7 34.3 25.6
Apr 57.5 45.1 35.4
May 71.1 57.6 46
Jun 78.7 66.3 55.2
Jul 81.9 69.9 58.4
Aug 80.9 68.3 56.9
Sep 74 60.5 49.1
Oct 61.9 49.6 39
Nov 47.4 37.1 28.1
Dec 33.9 26.2 18.5

Show Celsius

Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
Jan -2.1 -6.8 -11.4
Feb -1.6 -6.3 -10.8
Mar 7.1 1.3 -3.6
Apr 14.2 7.3 1.9
May 21.7 14.2 7.8
Jun 25.9 19.1 12.9
Jul 27.7 21.1 14.7
Aug 27.2 20.2 13.8
Sep 23.3 15.8 9.5
Oct 16.6 9.8 3.9
Nov 8.6 2.8 -2.2
Dec 1.1 -3.2 -7.5

 


 

Precipitation (Rain or Snow)

If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Lake Geneva are January, February, and then March. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around early January. For example, on the week of January 1st there are no days of precipitation on average. By contrast, it’s most likely to rain or snow in early to mid June with an average of 2 days of significant precipitation the week of June 11th.

When can you find snow in Lake Geneva? Weather stations report no annual snow. Please note that a value of 0 for snow in the graph below may either mean there was no snow, or that snow is unreported.

Chance of Precipitation

The graph below shows the % chance of rainy and snowy days in Lake Geneva.

Key
Days with precipitation

Snow on the Ground

The graph below shows the average snow on the ground in Lake Geneva (in).

Key
Snow depth

Average Rain and Snow by Month

Show Inches

Month Daily Chance of Rain Average Snow Depth (in) Total Precipitation (in)
Jan 3% 0 0.2
Feb 4% 0 0.4
Mar 6% 0 0.7
Apr 13% 0 2.4
May 16% 0 1.8
Jun 17% 0 2.9
Jul 11% 0 2.3
Aug 12% 0 1.6
Sep 13% 0 2.1
Oct 8% 0 1.1
Nov 10% 0 1.4
Dec 9% 0 1.2

Show Centimeters

Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
Jan 3 0 0.5
Feb 4 0 1
Mar 6 0 1.8
Apr 13 0 6.1
May 16 0 4.6
Jun 17 0 7.4
Jul 11 0 5.8
Aug 12 0 4.1
Sep 13 0 5.3
Oct 8 0 2.8
Nov 10 0 3.6
Dec 9 0 3

 

Humidity and Wind

Lake Geneva has some very humid months, with other comfortably humid months. The least humid month is May (56.1% relative humidity), and the most humid month is December (77.2%).

Wind in Lake Geneva is usually calm. The windiest month is April, followed by January and February. April’s average wind speed of around 7.8 knots (9 MPH or 14.4 KPH) is considered “a gentle breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in early April where average top sustained speeds reach 16.8 knots, which is considered a moderate breeze.

Relative Humidity (%)

The graph below shows the average % humidity by month in Lake Geneva.

Key
Avg. Relative Humidity

Wind

The graph below shows wind speed (max and average) in knots.

Key
Max Sustained Wind
Average Daily Wind

Average Wind Speeds

Show Wind Speeds

All wind speeds are in knots. 1 knot = 1.15 MPH or 1.85 KPH.

Month Avg. Wind Avg. Wind Feel Sustained High Wind High Wind Feel
Jan 7.7 Gentle breeze 14.8 Significant breeze
Feb 7.2 Gentle breeze 14.3 Significant breeze
Mar 6.8 Light breeze 14.2 Significant breeze
Apr 7.8 Gentle breeze 16.2 Significant breeze
May 6.5 Light breeze 14.7 Significant breeze
Jun 5.1 Light breeze 13 Significant breeze
Jul 4.3 Light breeze 11.5 Significant breeze
Aug 3.7 Barely noticeable 10.8 Gentle breeze
Sep 4.3 Light breeze 11.5 Significant breeze
Oct 5.9 Light breeze 13.2 Significant breeze
Nov 7 Gentle breeze 14.5 Significant breeze
Dec 6.9 Light breeze 14 Significant breeze

Show Relative Humidity by Month

Month Avg. Relative Humidity
Jan 70%
Feb 67.7%
Mar 63.4%
Apr 57.3%
May 56.1%
Jun 62.6%
Jul 65%
Aug 69.4%
Sep 68.2%
Oct 65.7%
Nov 67.5%
Dec 77.2%

 

Is it Safe to Travel to Lake Geneva?

Our best data indicates this area is generally safe. As of Oct 07, 2019 there are no travel advisories or warnings for the United States; exercise normal security precautions. Check this page for any recent changes or regions to avoid: Travel Advice and Advisories. This advisory was last updated on Sep 23, 2019.


 

The Busiest and Least Crowded Months

The busiest month for tourism in Lake Geneva, WI, US is July, followed by June and May. Prices for hotels and flights will be most expensive during these months, though you can save if you purchase well in advance. Tourists are unlikely to visit Lake Geneva in November. Those willing to visit at these times will likely find it the least expensive month.

Estimated Tourism by Month

 

Most Popular Months to Visit

Key
Tourists Seeking Accommodations

Tourism graph is based on Google searches for services used by tourists relative to the rest of the year. Tourism data for this area is somewhat extrapolated based on nearby areas. Displayed data is calculated relative to the peak, so a score of 38.2 in November means 38.2% of the tourists vs. July.

 

 

Overall Lake Geneva Travel Experience by Season

Spring (March through May)

Humidity and temperatures combine to make this season feel moderately cold. Highs range from 76.4°F (24.7°C) and 31.6°F (-0.2°C) with far warmer temperatures in the later months. Rain is rare with 2 to 5 days of significant precipitation per month. Spring is the second busiest for tourism, which makes it a good time for those looking for things to do.

Summer (June through August)

The middle-year months have very comfortable weather with high temperatures that are comfortable. These months see the most precipitation with 3 to 5 days of precipitation per month. June – August is the busiest season for tourism in Lake Geneva, so lodging and other accommodations may cost more than usual.

Fall (September through November)

Fall daily highs range from 77.3°F (25.2°C) and 39.4°F (4.1°C), which will feel chilly given the humidity and wind. It rains or snows a normal amount: 2 to 4 days per month. Tourism is the slowest during these months due to the weather, so hotels may be affordably priced.

Winter (December through February)

Weather is far too cold this time of year in Lake Geneva to be enjoyable for warm weather travelers. The average high during this season is between 34.7°F (1.5°C) and 26.2°F (-3.2°C). On average, it rains or snows a smalll amount: 1 to 3 times per month. These times of year are fairly slow with tourists.

 

Best Times to Travelthe United States › Lake Geneva, WI, US