The climate in Gaillimh during September can be summarized as mild and damp.
September is in the fall / autumn in Gaillimh and is typically the 4th warmest month of the year. Daytime maximum temperatures average around 17°C (62°F), whilst at night 9°C (49°F) is normal.
|Daytime temperature||16.8°C 62.2°F|
|Nightly temperature||9.3°C 48.7°F|
|Average temperature||13°C 55.4°F|
|Daily sunshine||3.7 hrs|
|Avg rainfall||104 mm 4.1 ins|
|Rainy days||20 days|
|Sea temperature||14.6°C 58.2°F|
|Windspeed||16.9kph 11 mph|
On average September is the 5th wettest month of the year in Gaillimh with around 104mm 4.1 inches of rain making it a damp time to visit. This rainfall is typically spread over 20 days, although this may vary considerably.
On the flip side this corresponds to an average of 3.7 hours of sunshine per day.
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 Gaillimh in September 2022.
|Hottest month:||July||18.7°C 65.7°F|
|Driest month:||April||61mm 2.4ins|
|Coldest month:||January||7.8°C 46°F|
|Wettest month:||November||117mm 4.6ins|