Larne Weather in September

What's the weather like in Larne (N Ireland) in September 2024?

The climate in Larne during September can be summarized as mild and damp.

September is in the fall / autumn in Larne and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a cool 15°C (59°F), whilst at night 9°C (48°F) is normal.

Larne weather averages (imperial / metric)
Daytime temperature 15.2°C 59.3°F
Nightly temperature 8.6°C 47.5°F
Average temperature 11.9°C 53.4°F
Daily sunshine 4.1 hrs
Avg rainfall 104 mm 4.1 ins
Rainy days 18 days
Sea temperature 14.7°C 58.5°F
Humidity 90%
Windspeed 19.7kph 12 mph

On average September is the 4th wettest month of the year in Larne with around 104mm 4.1 inches of rain making it a damp time to visit. This rainfall is typically spread over 18 days, although this may vary considerably.

On the flip side this corresponds to an average of 4.1 hours of sunshine per day.

September temperatures in Larne

Larne average temperature in September

September rainfall

Larne average rain in September

September hourly sunshine

Larne 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 Larne in September 2024.

Other monthly averages

Best places to visit in September

UV index Best time to go?

Larne weather stats

Larne weather statistics
Hottest month: July 17.3°C 63.1°F
Driest month: April 65mm 2.6ins
Sunniest month: May 6.6hrs
Coldest month: January 6°C 42.8°F
Wettest month: October 114mm 4.5ins
Map showing location of Larne (54.85, -5.81667) Larne map pin © Google

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