Caerphilly Weather in September
What's the weather like in Caerphilly (Wales) in September 2024?
The climate in Caerphilly during September can be summarized as mild and damp.
September is in the fall / autumn in Caerphilly and is typically the 4th warmest month of the year. Daytime maximum temperatures average around 17°C (63°F), whilst at night 10°C (50°F) is normal.
| Daytime temperature | 17.3°C 63.1°F |
|---|---|
| Nightly temperature | 9.8°C 49.6°F |
| Average temperature | 13.5°C 56.3°F |
| Daily sunshine | 4.9 hrs |
| Avg rainfall | 115 mm 4.5 ins |
| Rainy days | 16 days |
| Sea temperature | 16.1°C 60.9°F |
| Humidity | 87% |
| Windspeed | 16.6kph 10 mph |
On average September is the 5th wettest month of the year in Caerphilly with around 115mm 4.5 inches of rain making it a 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 4.9 hours of sunshine per day.
September temperatures in Caerphilly
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 Caerphilly in September 2024.
Other monthly averages
Best places to visit in September
Caerphilly weather stats
| Hottest month: | July | 19.6°C 67.3°F |
|---|---|---|
| Driest month: | July | 75mm 3ins |
| Sunniest month: | August | 6.3hrs |
| Coldest month: | February | 6.4°C 43.5°F |
| Wettest month: | December | 148mm 5.8ins |
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