Olivia Weather in September

What's the weather like in Olivia (Minnesota) in September 2025?

The climate in Olivia during September can be summarized as mild and reasonably dry.

September is in the fall / autumn in Olivia and is typically the 4th warmest month of the year. Daytime maximum temperatures average around 22°C (72°F), whilst at night 9°C (48°F) is normal.

Olivia weather averages (imperial / metric)
Daytime temperature 22.1°C 71.8°F
Nightly temperature 9.1°C 48.4°F
Average temperature 15.6°C 60.1°F
Daily sunshine 8.4 hrs
Avg rainfall 69 mm 2.7 ins
Rainy days 9 days
Sea temperature 16.8°C 62.2°F
Humidity 72%
Windspeed 17.6kph 11 mph

On average September is the 5th wettest month of the year in Olivia with around 69mm 2.7 inches of rain making it a reasonably dry 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 8.4 hours of sunshine per day.

September temperatures in Olivia

Olivia average temperature in September

September rainfall

Olivia average rain in September

September hourly sunshine

Olivia average rain in September

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 Olivia in September 2025.

Other monthly averages

Best places to visit in September

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Olivia weather stats

Olivia weather statistics
Hottest month: July 28.8°C 83.8°F
Driest month: December 17mm 0.7ins
Sunniest month: July 12hrs
Coldest month: January -7°C 19.4°F
Wettest month: June 104mm 4.1ins
Map showing location of Olivia (44.77635, -94.98972) Olivia map pin © Google

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