September weather forecast and climate
Manitowoc, WI

What is the temperature in September in Manitowoc?

In Manitowoc, Wisconsin, in September, the average high-temperature is 66°F (18.9°C), and the average low-temperature is 54°F (12.2°C).

How much does it rain in Manitowoc in September?

In Manitowoc, Wisconsin, in September, typically, 3.1" (78mm) of precipitation is accumulated.

What is the sea water temperature in September in Manitowoc?

In September, the average sea temperature is 65.5°F (18.6°C). Swimming in 65.5°F (18.6°C) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 69.8°F (21°C).
Average temperature in September - Manitowoc, WI
  • Average high temperature in September: 66°F

The warmest month (with the highest average high temperature) is July (77°F).
The month with the lowest average high temperature is January (26°F).

  • Average low temperature in September: 54°F

The month with the highest average low temperature is July (62°F).
The coldest month (with the lowest average low temperature) is January (14°F).

Average rainfall in September - Manitowoc, WI
  • Average rainfall in September: 3.1"

The wettest month (with the highest rainfall) is August (3.6").
The driest month (with the lowest rainfall) is February (1.4").

Average sea temperature in September - Manitowoc, WI
  • Average sea temperature in September: 65.5°F

The best month for swimming (with the highest average sea temperature) is August (69.7°F).
The coldest month (with the lowest average sea temperature) is February (36.6°F).

Average daylight in September - Manitowoc, WI
  • Average daylight in September: 12.5h

The month with the longest days is June (Average daylight: 15.4h).
The month with shortest days is December (Average daylight: 8.9h).

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