The climate in Blackrock during September can be summarized as mild and reasonably dry.
September is in the fall / autumn in Blackrock 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 | 16.9°C 62.4°F |
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Nightly temperature | 9.3°C 48.7°F |
Average temperature | 13.1°C 55.6°F |
Daily sunshine | 4.3 hrs |
Avg rainfall | 79 mm 3.1 ins |
Rainy days | 16 days |
Sea temperature | 15.3°C 59.5°F |
Humidity | 85% |
Windspeed | 16.9kph 11 mph |
On average September is the 4th wettest month of the year in Blackrock with around 79mm 3.1 inches of rain making it a reasonably dry 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 4.3 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 Blackrock in September 2024.
Best places to visit in September
Hottest month: | July | 19.3°C 66.7°F |
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Driest month: | July | 55mm 2.2ins |
Sunniest month: | May | 6.3hrs |
Coldest month: | January | 7.5°C 45.5°F |
Wettest month: | December | 87mm 3.4ins |