Spirit Lake Weather in August

What's the weather like in Spirit Lake (Iowa) in August 2025?

The climate in Spirit Lake during August can be summarized as warm, humid and a little damp.

August is in the summer in Spirit Lake and is typically the 2nd warmest month of the year. Daytime maximum temperatures average around a muggy 27°C (81°F), whilst at night 14°C (58°F) is normal.

Spirit Lake weather averages (imperial / metric)
Daytime temperature 27.1°C 80.7°F
Nightly temperature 14.2°C 57.5°F
Average temperature 20.6°C 69.1°F
Daily sunshine 10.3 hrs
Avg rainfall 95 mm 3.8 ins
Rainy days 9 days
Sea temperature 18.5°C 65.2°F
Humidity 71%
Windspeed 16.6kph 10 mph

On average August is the 2nd wettest month of the year in Spirit Lake with around 95mm 3.8 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 9 days, although this may vary considerably.

On the flip side this corresponds to an average of 10.3 hours of sunshine per day.

August temperatures in Spirit Lake

Spirit Lake average temperature in August

August rainfall

Spirit Lake average rain in August

August hourly sunshine

Spirit Lake average rain in August

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Spirit Lake in August 2025.

Other monthly averages

Best places to visit in August

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Spirit Lake weather stats

Spirit Lake weather statistics
Hottest month: July 28.4°C 83.1°F
Driest month: January 17mm 0.7ins
Sunniest month: July 11.7hrs
Coldest month: January -5.5°C 22.1°F
Wettest month: June 113mm 4.4ins
Map showing location of Spirit Lake (43.42218, -95.10222) Spirit Lake map pin © Google

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