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:
20°C
68.0°F
°C °F

Condition: Clear Sky

Pressure: 1,016 hPa

Feel like: 21 °C

Temperature: 20°C

Cloud: 0%

Humidity: 70%

Wind: N - 8 km/h

Visibility: 22.36 km

Weather forecast

Tue
23 Jun
18°C / 31°C
Slight Thunderstorm
Wed
24 Jun
22°C / 33°C
Slight Thunderstorm
Thu
25 Jun
16°C / 23°C
Drizzle
Fri
26 Jun
16°C / 21°C
Drizzle
Sat
27 Jun
15°C / 19°C
Drizzle
Hourly forecast today:
00:00 AM
15° / 20°
15° / 20°
Clear Sky
70% 18 km/h
01:00 AM
14° / 20°
14° / 20°
Clear Sky
71% 18 km/h
02:00 AM
14° / 19°
14° / 19°
Clear Sky
72% 17 km/h
03:00 AM
14° / 19°
14° / 19°
Clear Sky
75% 15 km/h
04:00 AM
14° / 18°
14° / 18°
Clear Sky
77% 16 km/h
05:00 AM
15° / 19°
15° / 19°
Clear Sky
79% 16 km/h
06:00 AM
16° / 20°
16° / 20°
Clear Sky
76% 20 km/h
07:00 AM
16° / 21°
16° / 21°
Clear Sky
74% 24 km/h
08:00 AM
16° / 22°
16° / 22°
Clear Sky
68% 27 km/h
09:00 AM
17° / 24°
17° / 24°
Clear Sky
66% 29 km/h
10:00 AM
18° / 25°
18° / 25°
Clear Sky
64% 32 km/h

30 Day Averages and Extremes

  • Average high 18.9°C
  • Average low 12.73°C
  • Hottest day 33°C (24 June 2026)
  • Coldest day 0°C (04 July 2026)
  • Average humidity 72.3%
  • Days with precipitation 22 days
  • Highest precipitation 73 mm (16 June 2026)

Yesterday's Data

  • Max: 31°C
  • Min: 18°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 very hot weather in Caerphilly, with the high temperatures above 32ºC (89.6ºF), consider wearing:
- Light, natural fabrics (like cotton or linen)
- Sleeveless tops or vests
- Lightweight, loose-fitting shorts
- UV-blocking sunglasses

Temperature

Early
14°C / 19°C
Morning
17°C / 24°C
Afternoon
20°C / 31°C
Evening
19°C / 25°C

Air quality

Good

Satisfactory air quality, minimal pollution, low risk

  • CO2 455
  • CO 128
  • NH3 2
  • NO2 8
  • O3 57
  • PM10 7
  • PM25 5
  • SO2 0
  • CH4 1,522

Sunrise / Sunset

03:56
20:34