Portarlington Weather in September
What's the weather like in Portarlington (Leinster) in September 2024?
The climate in Portarlington during September can be summarized as mild and a little damp.
September is in the fall / autumn in Portarlington and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a cool 17°C (62°F), whilst at night 8°C (47°F) is normal.
| Daytime temperature | 16.7°C 62°F |
|---|---|
| Nightly temperature | 8.2°C 46.7°F |
| Average temperature | 12.4°C 54.3°F |
| Daily sunshine | 4.1 hrs |
| Avg rainfall | 85 mm 3.3 ins |
| Rainy days | 17 days |
| Sea temperature | 15°C 59°F |
| Humidity | 85% |
| Windspeed | 14kph 9 mph |
On average September is the 4th wettest month of the year in Portarlington with around 85mm 3.3 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 17 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 Portarlington
September rainfall
September hourly sunshine
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 Portarlington in September 2024.
Other monthly averages
Best places to visit in September
Portarlington weather stats
| Hottest month: | July | 19.1°C 66.4°F |
|---|---|---|
| Driest month: | April | 57mm 2.2ins |
| Sunniest month: | May | 5.9hrs |
| Coldest month: | January | 7°C 44.6°F |
| Wettest month: | December | 93mm 3.7ins |
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