Llantwit Major Weather in September

What's the weather like in Llantwit Major (Wales) in September 2024?

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

September is in the fall / autumn in Llantwit Major and is typically the 4th warmest month of the year. Daytime maximum temperatures average around 18°C (64°F), whilst at night 10°C (51°F) is normal.

Llantwit Major weather averages (imperial / metric)
Daytime temperature 17.7°C 63.8°F
Nightly temperature 10.4°C 50.6°F
Average temperature 14°C 57.2°F
Daily sunshine 5.1 hrs
Avg rainfall 92 mm 3.6 ins
Rainy days 16 days
Sea temperature 16.1°C 60.9°F
Humidity 87%
Windspeed 16.2kph 10 mph

On average September is the 5th wettest month of the year in Llantwit Major with around 92mm 3.6 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 16 days, although this may vary considerably.

On the flip side this corresponds to an average of 5.1 hours of sunshine per day.

September temperatures in Llantwit Major

Llantwit Major average temperature in September

September rainfall

Llantwit Major average rain in September

September hourly sunshine

Llantwit Major 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 Llantwit Major in September 2024.

Other monthly averages

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Llantwit Major weather stats

Llantwit Major weather statistics
Hottest month: July 19.9°C 67.8°F
Driest month: April 59mm 2.3ins
Sunniest month: August 6.4hrs
Coldest month: February 7.1°C 44.8°F
Wettest month: November 109mm 4.3ins
Map showing location of Llantwit Major (51.4107, -3.48632) Llantwit Major map pin © Google

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