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Hourly Forecast
Daylight Hours
06:57
Sunrise
19:16
Sunset
Moon
Waxing Crescent
13:31
Moonrise
20:53
Moonset
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Weather in Caerphilly today, September 16, 2026
Caerphilly looks damp on September 16, 2026, so plan for wet spells during the day. Early travel and outdoor time should assume rain can arrive quickly. Cloud leads the morning, peaking close to 85% near 10:00. Sunshine has little room until later in the day.
The temperature range runs from about 11°C up to 18°C. Expect humidity between 60% and 92%, most humid near 01:00. Expect gentle winds, highest near 16:00 at 4.9 km/h.
The afternoon keeps an overcast feel, as cloud reaches about 100% around 15:00. Outdoor plans may still want a flexible backup. Expect visibility near 31.8 km, with poorer spells close to 21.3 km. Sunrise is at 06:57 and sunset at 19:16, giving 12 hours 18 minutes of sunlight today.
The practical takeaway for Caerphilly on September 16, 2026 is simple: plan for rain, keep layers handy, and work around a high of about 18°C.
Frequently asked questions about weather in Caerphilly
How warm does it get in Caerphilly?
The warmest month in Caerphilly is July, with average high temperatures of 20°C. The average temperature during this period is around 17°C.
How cold does it get in Caerphilly?
The coldest month in Caerphilly is January, with average low temperatures of 3°C. The average temperature during this period is around 6°C.
What is the wettest time of year in Caerphilly?
The wettest month in Caerphilly is October, with an average of 124mm of precipitation.
What is the driest time of year in Caerphilly?
The driest month in Caerphilly is April, with an average of 63mm of precipitation.
