Gretna Weather in September

What's the weather like in Gretna (Scotland) in September 2024?

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

September is in the fall / autumn in Gretna and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a cool 17°C (62°F), whilst at night 9°C (48°F) is normal.

Gretna weather averages (imperial / metric)
Daytime temperature 16.5°C 61.7°F
Nightly temperature 9.1°C 48.4°F
Average temperature 12.8°C 55°F
Daily sunshine 4.2 hrs
Avg rainfall 105 mm 4.1 ins
Rainy days 18 days
Sea temperature 14.4°C 58°F
Humidity 85%
Windspeed 14.4kph 9 mph

On average September is the 2nd wettest month of the year in Gretna with around 105mm 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 4.2 hours of sunshine per day.

September temperatures in Gretna

Gretna average temperature in September

September rainfall

Gretna average rain in September

September hourly sunshine

Gretna 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 Gretna in September 2024.

Other monthly averages

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UV index Best time to go?

Gretna weather stats

Gretna weather statistics
Hottest month: July 18.8°C 65.8°F
Driest month: April 58mm 2.3ins
Sunniest month: May 6.5hrs
Coldest month: January 6.3°C 43.3°F
Wettest month: October 108mm 4.3ins
Map showing location of Gretna (54.9938, -3.06594) Gretna map pin © Google

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