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:
19°C
66.2°F
°C °F

Condition: Partly Cloudy

Pressure: 1,009 hPa

Feel like: 18 °C

Temperature: 19°C

Cloud: 73%

Humidity: 62%

Wind: W - 13 km/h

Visibility: 40.88 km

Weather forecast

Sat
26 Sep
10°C / 17°C
Slight Rain
Sun
27 Sep
5°C / 16°C
Overcast
Mon
28 Sep
11°C / 20°C
Slight Rain
Tue
29 Sep
15°C / 19°C
Drizzle
Wed
30 Sep
9°C / 16°C
Drizzle Dense Intensity
Hourly forecast today:
14:00 PM
12° / 19°
12° / 19°
Partly Cloudy
62% 28 km/h
15:00 PM
12° / 18°
12° / 18°
Overcast
64% 27 km/h
16:00 PM
11° / 17°
11° / 17°
Overcast
67% 27 km/h
17:00 PM
11° / 16°
11° / 16°
Overcast
71% 28 km/h
18:00 PM
10° / 15°
10° / 15°
Overcast
73% 21 km/h
19:00 PM
10° / 14°
10° / 14°
Overcast
76% 30 km/h
20:00 PM
9° / 14°
9° / 14°
Overcast
73% 9 km/h
21:00 PM
9° / 13°
9° / 13°
Mainly Clear
77% 19 km/h
22:00 PM
8° / 12°
8° / 12°
Overcast
79% 19 km/h
23:00 PM
8° / 12°
8° / 12°
Overcast
81% 21 km/h
00:00 AM
8° / 11°
8° / 11°
Clear Sky
82% 21 km/h

30 Day Averages and Extremes

  • Average high 16.63°C
  • Average low 10.73°C
  • Hottest day 21°C (21 September 2026)
  • Coldest day 0°C (08 October 2026)
  • Average humidity 78.23%
  • Days with precipitation 23 days
  • Highest precipitation 71 mm (12 September 2026)

Yesterday's Data

  • Max: 20°C
  • Min: 12°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 14ºC to 17ºC (57.2ºF to 62.6ºF), consider wearing:
- Lightweight sweater or cardigan
- Light jacket (for cooler periods)
- Scarf (optional)
- Sun hat (if spending time outdoors)

Temperature

Early
14°C / 14°C
Morning
15°C / 16°C
Afternoon
12°C / 18°C
Evening
9°C / 13°C

Air quality

Good

Satisfactory air quality, minimal pollution, low risk

  • CO2 430
  • CO 213
  • NH3 1
  • NO2 5
  • O3 73
  • PM10 10
  • PM25 6
  • SO2 1
  • CH4 1,380

Sunrise / Sunset

06:05
18:02