Caerphilly, United Kingdom Weather

  1. Caerphilly, United Kingdom Weather
  2. Current conditions
  3. Weather forecast
  4. Averages and extremes
  5. Yesterday's Data
  6. Temperature and possibility of rain in Caerphilly over the next 12 hours
  7. Temperature and possibility of rain in Caerphilly in the coming days
  8. Rainfall in Caerphilly in the coming days
  9. Caerphilly Weather Summary
  10. Weather averages by month
  11. Caerphilly's weather
  12. Frequently asked questions
  13. Comments
Caerphilly, Weather
(Photo by Viktor Forgacs on Unsplash)

Current conditions

Updated:
18°C
64.4°F
°C °F

Condition: Partly Cloudy

Pressure: 1,017 hPa

Feel like: 19 °C

Temperature: 18°C

Cloud: 79%

Humidity: 78%

Wind: WNW - 4 km/h

Visibility: 15.3 km

Weather forecast

Wed
23 Sep
8°C / 18°C
Overcast
Thu
24 Sep
8°C / 19°C
Overcast
Fri
25 Sep
8°C / 17°C
Overcast
Sat
26 Sep
8°C / 17°C
Overcast
Sun
27 Sep
11°C / 15°C
Moderate Rain
Hourly forecast today:
19:00 PM
14° / 18°
14° / 18°
Partly Cloudy
78% 9 km/h
20:00 PM
14° / 18°
14° / 18°
Overcast
81% 7 km/h
21:00 PM
15° / 17°
15° / 17°
Partly Cloudy
85% 7 km/h
22:00 PM
14° / 17°
14° / 17°
Partly Cloudy
87% 5 km/h
23:00 PM
15° / 16°
15° / 16°
Overcast
90% 3 km/h
00:00 AM
14° / 17°
14° / 17°
Overcast
86% 7 km/h
01:00 AM
14° / 16°
14° / 16°
Partly Cloudy
86% 11 km/h
02:00 AM
14° / 16°
14° / 16°
Partly Cloudy
87% 11 km/h
03:00 AM
14° / 15°
14° / 15°
Partly Cloudy
91% 9 km/h
04:00 AM
14° / 15°
14° / 15°
Partly Cloudy
93% 13 km/h
05:00 AM
14° / 15°
14° / 15°
Overcast
92% 14 km/h

30 Day Averages and Extremes

  • Average high 16.13°C
  • Average low 10.23°C
  • Hottest day 20°C (13 September 2026)
  • Coldest day 0°C (05 October 2026)
  • Average humidity 77.57%
  • Days with precipitation 25 days
  • Highest precipitation 71 mm (12 September 2026)

Yesterday's Data

  • Max: 20°C
  • Min: 14°C
  • Total Precipitation: 0 mm

Temperature and possibility of rain in Caerphilly over the next 12 hours

Temperature and possibility of rain in Caerphilly in the coming days

Rainfall in Caerphilly in the coming days

Caerphilly Climate Summary

Caerphilly features a Marine west coast, warm summer (Köppen classification: Cfb), with an average annual temperature of 10.94ºC (51.69ºF), which is about 0.19% higher than the national average for United Kingdom. Annually, the city experiences approximately 39.39 millimeters (1.55 inches) of rainfall, spread across 96.09 rainy days, accounting for 26.33% of the year.

Longitude 51.578829
Latitude -3.218134
Yearly high temperature 12.8ºC (55.04ºF)
Yearly low temperature 7.44ºC (45.39ºF)
Hottest month July 19.06ºC (66.31ºF)
Coldest month December 4.55ºC (40.19ºF)
Yearly precip 39.39mm (1.55in)
Days with rainfall 96.09 days (26.33%)
Driest month April (81.92%)
Wettest month December (87.1%)

Weather averages by month

Month High / Low (°C) Rain
January 7.06° / 3.33° 8.45 days
February 7.43° / 3.37° 7.27 days
March 9.4° / 3.71° 6.82 days
April 12.13° / 5.36° 6.55 days
May 14.57° / 7.82° 7.27 days
June 17.1° / 10.54° 9.0 days
July 19.06° / 12.4° 7.18 days
August 18.44° / 12.53° 9.91 days
September 16.83° / 10.71° 6.09 days
October 13.62° / 8.87° 8.64 days
November 9.94° / 6.08° 9.27 days
December 8.06° / 4.55° 9.64 days

Caerphilly's weather

Frequently asked questions

1. What is the hottest month in Caerphilly?

July has the highest average monthly temperature (daily mean of 19.06ºC) and December are the coolest (daily mean of 4.55ºC).

2. What should I wear in Caerphilly today?

For today's mild weather in Caerphilly, with temperatures between 15ºC to 18ºC (59.0ºF to 64.4ºF), consider wearing:
- Scarf (optional)
- Cotton socks
- Long-sleeve shirt or blouse
- Comfortable jeans or slacks

Temperature

Early
13°C / 14°C
Morning
14°C / 17°C
Afternoon
14°C / 20°C
Evening
15°C / 17°C

Air quality

Good

Satisfactory air quality, minimal pollution, low risk

  • CO2 451
  • CO 212
  • NH3 2
  • NO2 16
  • O3 39
  • PM10 10
  • PM25 7
  • SO2 1
  • CH4 1,480

Sunrise / Sunset

06:00
18:09