Germantown (WI) Weather & Climate: Best Time to Visit

Average temperatures, rainfall, sunshine and the best time to visit Germantown.

Climate overview of Germantown

Germantown, Wisconsin, United States of America, experiences significant temperature variation throughout the year. Summers bring daytime highs of 28°C (82°F) in July, while winters cool to -3°C (27°F) in February.

Germantown sees a moderate amount of rain/snowfall, totalling around 900 mm (35 in) per year. The most sunshine falls in July, with an average of 11.0 hours of daily sunshine.

Germantown Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Germantown — and find the best time to visit.

Monthly Temperature in Germantown

Depending on the time of the year, temperatures range from comfortable to very cold in Germantown. Average maximum daytime temperatures range from a comfortable 28°C (82°F) in July, the warmest time of the year, to a very cold -3°C (27°F) during cooler months like February.

At night, you can expect temperatures ranging from 16°C (61°F) in July to around -12°C (10°F) during February.

Check out our detailed temperature page for more information.

Temperature ranges by month

Rainfall in Germantown

Generally, Germantown has a moderate amount of precipitation, averaging 900 mm (35 in) of rain/snowfall annually. Significant seasonal changes in precipitation occur throughout the year. In the wettest month, April it receives high rainfall, averaging 118 mm (4.6 in) of precipitation, recorded across 13 rainy days. In contrast, the driest month January brings less snowfall, with 33 mm (1.3 in) over 10 snowy days. For more details, please visit our Germantown Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

Sunshine Hours in Germantown

Seasonal changes in sunshine hours are quite dramatic in Germantown. While July receives considerable daily sunshine with up to 11.0 hours, January marks the darkest time of the year, where sunshine is scarce with only 4.0 hours of sunlight per day.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Data from: Port Washington, the United States of America (25 KM, 16 Miles).

Daily hours of sunshine

Data from: Port Washington, the United States of America (25 KM, 16 Miles).

Best Time to Visit Germantown

During the months of May, June, July, August and September, Germantown enjoys pleasant weather with average temperatures ranging from 20°C (68°F) to 28°C (82°F). These months are perfect for sightseeing and exploring.

Rainfall during this time ranges from 86 mm (3.4 in) in September to 111 mm (4.4 in) in June. This means you can expect a mix of sunny days and occasional showers.

Seeking the perfect travel destination for this year? We've created a tool that suggests locations matching your desired weather. Let our weather planner guide your travel decisions.

Frequently asked questions about the climate in Germantown

What is the best time to visit Germantown?

May, July, August and September typically offer the most optimal weather in Germantown. In contrast, January, February, March, April, November and December tend to have less optimal conditions.

What temperatures can I expect in Germantown?

Daytime highs range from -3°C (27°F) in February to 28°C (82°F) in July. Nighttime lows range from -12°C (10°F) to 16°C (61°F). Temperatures vary considerably through the year.

How much rain does Germantown get?

Annual rainfall is around 900 mm (35 in). April is the wettest month with 118 mm (4.6 in), while January is the driest with 33 mm (1.3 in).

How sunny is Germantown?

Germantown receives around 2,560 hours of sunshine per year. July is the sunniest month with 330 hours, while January is the cloudiest with just 120 hours. Overall, Germantown enjoys abundant sunshine.

Germantown 3-Day Forecast

Germantown (WI) 3-Day Forecast

Germantown on the map

Germantown is highlighted — select any city to see its climate.

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Where to go in July — average daytime high across popular destinations.

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