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Best time to visit Lake Geneva, WI, USA

Our verdict

The best time to visit Lake Geneva is November

Want to know when to travel to Lake Geneva? Based on criteria such as the weather, cost of flights and hotels, and peak travel periods, November is the best time to go to Lake Geneva. Don’t just take our word for it though… We’ve put together loads of information below to help you decide, such as a monthly breakdown of the weather, what to pack, when to fly, and much more.

The warmest month of the year in Lake Geneva is August, where the average temperature gets to around 33℃ (91℉), but temperatures can reach as high as 34℃ (93℉) on the hottest days in summer. The coldest it usually gets in winter-time in Lake Geneva is around 5℃ (40℉).

If you’re keen to work on your tan in Lake Geneva, you’re most likely get the longest days between sun-up and sun-down around July. July sees the most amount of rain in a month if you’re ok with chancing getting drenched, so if you’re looking to stay dry, visit in January instead.

Continue reading to find out more about when to visit Lake Geneva, including the climate, seasonal info, what to pack, FAQs, and the best tools to help you plan and book your next vacation.

Warmest month

August

Least rainfall

January

Most daylight

July

Lake Geneva seasons

Before you continue, it’s important to know when the seasons are in Lake Geneva as they might be different to yours depending on where in the world you’re travelling from. Lake Geneva is in the Northern Hemisphere, so the seasons fall during these months:

SeasonMonths
Summer June to August
Autumn/fall September to November
Winter December to February
Spring March to May

Average temperatures in Lake Geneva

If the temperature is a big factor for you to help you decide when to visit, the chart below shows the average minimum and maximum temperatures in Lake Geneva for each month side-by-side so you can easily see the difference in weather throughout the year. To see the temperatures in both Celsius (°C) and Fahrenheit (°F), hover or tap the shaded boxes on the graph.

Lake Geneva climate by month

If you already have a rough idea about which months you might want to travel, the section below shows a detailed breakdown of the climate in Lake Geneva for each month so you can see if it all suits your wants and needs. Scroll down, or use the quick menu below to jump to your preferred month.

Jump to:

JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
NOV
DEC

Lake Geneva in January

  • Average temperature: 13℃ (55℉)
  • Average high temperature: 18℃ (64℉)
  • Average low temperature: 8℃ (46℉)
  • Average humidity: 72%
  • Average sunny days: 20 days
  • Average rainfall: 38mm (1") over 10 days
20 days
of pure sunshine
10 days
of showers or rain

What to pack: If you’re heading to Lake Geneva in January, make sure you pack a warm jacket or coat.


Lake Geneva in February

  • Average temperature: 15℃ (59℉)
  • Average high temperature: 21℃ (69℉)
  • Average low temperature: 10℃ (50℉)
  • Average humidity: 74%
  • Average sunny days: 16 days
  • Average rainfall: 44mm (2") over 11 days
16 days
of pure sunshine
11 days
of showers or rain

What to pack: If you’re heading to Lake Geneva in February, make sure you pack a coat or jumper for the evenings and some light clothes for the daytime.


Lake Geneva in March

  • Average temperature: 18℃ (64℉)
  • Average high temperature: 24℃ (75℉)
  • Average low temperature: 12℃ (54℉)
  • Average humidity: 71%
  • Average sunny days: 18 days
  • Average rainfall: 39mm (2") over 11 days
18 days
of pure sunshine
11 days
of showers or rain

What to pack: If you’re heading to Lake Geneva in March, make sure you pack t-shirts for the daytime and maybe a light jumper for the evenings as it cools down a bit.


Lake Geneva in April

  • Average temperature: 21℃ (71℉)
  • Average high temperature: 27℃ (81℉)
  • Average low temperature: 16℃ (61℉)
  • Average humidity: 72%
  • Average sunny days: 16 days
  • Average rainfall: 55mm (2") over 12 days
16 days
of pure sunshine
12 days
of showers or rain

What to pack: If you’re heading to Lake Geneva in April, make sure you pack t-shirts for the daytime and maybe a light jumper for the evenings as it cools down a bit.


Lake Geneva in May

  • Average temperature: 25℃ (76℉)
  • Average high temperature: 30℃ (86℉)
  • Average low temperature: 19℃ (67℉)
  • Average humidity: 72%
  • Average sunny days: 14 days
  • Average rainfall: 73mm (3") over 15 days
14 days
of pure sunshine
15 days
of showers or rain

What to pack: If you’re heading to Lake Geneva in May, make sure you pack t-shirts for the daytime and maybe a light jumper for the evenings as it cools down a bit.


Lake Geneva in June

  • Average temperature: 27℃ (81℉)
  • Average high temperature: 32℃ (90℉)
  • Average low temperature: 23℃ (73℉)
  • Average humidity: 77%
  • Average sunny days: 5 days
  • Average rainfall: 105mm (4") over 24 days
5 days
of pure sunshine
24 days
of showers or rain

What to pack: If you’re heading to Lake Geneva in June, make sure you pack t-shirts and shorts.. It stays pretty warm most of the time.


Lake Geneva in July

  • Average temperature: 28℃ (82℉)
  • Average high temperature: 33℃ (91℉)
  • Average low temperature: 24℃ (74℉)
  • Average humidity: 77%
  • Average sunny days: 4 days
  • Average rainfall: 126mm (5") over 25 days
4 days
of pure sunshine
25 days
of showers or rain

What to pack: If you’re heading to Lake Geneva in July, make sure you pack t-shirts and shorts.. It stays warm all day and night.


Lake Geneva in August

  • Average temperature: 28℃ (82℉)
  • Average high temperature: 33℃ (91℉)
  • Average low temperature: 24℃ (75℉)
  • Average humidity: 78%
  • Average sunny days: 4 days
  • Average rainfall: 110mm (4") over 26 days
4 days
of pure sunshine
26 days
of showers or rain

What to pack: If you’re heading to Lake Geneva in August, make sure you pack t-shirts and shorts.. It stays warm all day and night.


Lake Geneva in September

  • Average temperature: 26℃ (79℉)
  • Average high temperature: 31℃ (88℉)
  • Average low temperature: 22℃ (72℉)
  • Average humidity: 78%
  • Average sunny days: 7 days
  • Average rainfall: 80mm (3") over 22 days
7 days
of pure sunshine
22 days
of showers or rain

What to pack: If you’re heading to Lake Geneva in September, make sure you pack t-shirts and shorts.. It stays pretty warm most of the time.

Lake Geneva in October

  • Average temperature: 22℃ (72℉)
  • Average high temperature: 27℃ (81℉)
  • Average low temperature: 18℃ (64℉)
  • Average humidity: 76%
  • Average sunny days: 16 days
  • Average rainfall: 58mm (2") over 12 days
16 days
of pure sunshine
12 days
of showers or rain

What to pack: If you’re heading to Lake Geneva in October, make sure you pack t-shirts for the daytime and maybe a light jumper for the evenings as it cools down a bit.


Lake Geneva in November

  • Average temperature: 17℃ (63℉)
  • Average high temperature: 23℃ (73℉)
  • Average low temperature: 13℃ (55℉)
  • Average humidity: 76%
  • Average sunny days: 19 days
  • Average rainfall: 38mm (2") over 9 days
19 days
of pure sunshine
9 days
of showers or rain

What to pack: If you’re heading to Lake Geneva in November, make sure you pack a light jumper or hoodie for the evenings and some light clothes for the daytime.


Lake Geneva in December

  • Average temperature: 15℃ (60℉)
  • Average high temperature: 20℃ (68℉)
  • Average low temperature: 11℃ (51℉)
  • Average humidity: 77%
  • Average sunny days: 18 days
  • Average rainfall: 57mm (2") over 11 days
18 days
of pure sunshine
11 days
of showers or rain

What to pack: If you’re heading to Lake Geneva in December, make sure you pack a coat or jumper for the evenings and some light clothes for the daytime.


Top FAQs

The hottest month of the year in Lake Geneva is usually August, where temperatures tend to rise to around 33℃ (91℉) in the middle of the day or early afternoon.
The month with the least amount of rain in Lake Geneva is generally around January. The dry season often coincides with cooler weather, so you should check the temperatures in January first to make sure it’s still a good time to go.
The rainiest time of year in Lake Geneva is generally around July, although the wetter season can sometimes extend a few months either side of July too.
If you want to get the most out of your time visiting Lake Geneva, or if you're just afraid of the dark, the days in July are usually the longest between sunrise and sunset.

Lake Geneva map