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The weather in September in Haven

It's warm in September in Haven with an average temperature of 23°C. Temperatures this month range from a low of 18°C to a high of 27°C. At night, you can expect temperatures between 10°C and 15°C.

Looking for sun? September isn’t a good month to be in Haven. The temperature is nice, but there’s too much chance of rain.

Average temperatures and precipitation

This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in September for Haven, Wisconsin. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.

Temperature records

With 34°C in 2023, Haven reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 9°C in 2014. The extreme nighttime temperatures ranged from a lowest recorded value of 0°C to a highest value of 23°C.

Rainfall amount

In September, there is an average of 119 mm of precipitation, spread over 14 days. The wind speed is around 4 Bft, mostly coming from the South.

Daily weather in September for Haven

Click on any day in September to get detailed info about the usual weather on that day in Haven. Check out the historical temperatures and precipitation over the past 10 years on this day.

September weather comparison

  Haven New York
Average temperature 23°C 27°C
Max. temperature 27°C 31°C
Min. temperature 10°C -5°C
Total precipitation 119 mm 57 mm
Rainy days 14 days 9 days

Start of September

The month of September starts in Haven with warm temps, averaging around 25°C during the day and nights around 14°C.

Mid September

By mid-September, daytime temps drop to around 23°C, with nights around 13°C. There’s a chance of some showers during this time, but plenty of dry and sunny days too.

End of September

By the end of September, the average daytime temperature in Haven is around 22°C, while nighttime temps are about 13°C. A shower might pop up, but overall, the weather will be dry and sunny.

UV index

The UV index is a maximum of 7 this month. That's a moderate to high value on the intensity scale of 1 to 11. Unprotected skin can burn within 15-25 minutes.

Check out the climate of Haven for all months and discover the best travel time

Temperature charts

These charts show the average temperatures in September in Haven, Wisconsin. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.

Daily Temperature in September in Haven

Temperature in September in Haven over the years

Precipitation charts

These charts show the average amount of precipitation in September in Haven, Wisconsin. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.

Daily Precipitation in September in Haven

Total precipitation in September in Haven over the years

Daily UV index in September in Haven

This chart shows the average daily UV index in September in Haven, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.

Weather experiences in September in Haven

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Average weather in Haven by month

Click on a month below to see detailed weather info for Haven. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.