Merrillville Weather in September

What's the weather like in Merrillville (Indiana) in September 2024?

The climate in Merrillville during September can be summarized as mild and a little damp.

September is in the fall / autumn in Merrillville and is typically the 4th warmest month of the year. Daytime maximum temperatures average around 24°C (75°F), whilst at night 11°C (52°F) is normal.

Merrillville weather averages (imperial / metric)
Daytime temperature 24.1°C 75.3°F
Nightly temperature 11.4°C 52.4°F
Average temperature 17.7°C 63.9°F
Daily sunshine 8.3 hrs
Avg rainfall 92 mm 3.6 ins
Rainy days 9 days
Sea temperature 19.7°C 67.5°F
Humidity 73%
Windspeed 14.8kph 9 mph

On average September is the 5th wettest month of the year in Merrillville with around 92mm 3.6 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 8.3 hours of sunshine per day.

September temperatures in Merrillville

Merrillville average temperature in September

September rainfall

Merrillville average rain in September

September hourly sunshine

Merrillville 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 Merrillville in September 2024.

Other monthly averages

Best places to visit in September

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Merrillville weather stats

Merrillville weather statistics
Hottest month: July 28.8°C 83.8°F
Driest month: February 38mm 1.5ins
Sunniest month: July 11hrs
Coldest month: January -1.3°C 29.7°F
Wettest month: June 106mm 4.2ins
Map showing location of Merrillville (41.48281, -87.33281) Merrillville map pin © Google

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