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:
13°C
55.4°F
°C °F

Condition: Clear Sky

Pressure: 1,017 hPa

Feel like: 11 °C

Temperature: 13°C

Cloud: 0%

Humidity: 67%

Wind: NNE - 8 km/h

Visibility: 27.12 km

Weather forecast

Thu
24 Sep
8°C / 17°C
Drizzle
Fri
25 Sep
9°C / 17°C
Drizzle
Sat
26 Sep
11°C / 18°C
Moderate Drizzle
Sun
27 Sep
9°C / 15°C
Drizzle
Mon
28 Sep
10°C / 17°C
Slight Thunderstorm
Hourly forecast today:
20:00 PM
7° / 13°
7° / 13°
Clear Sky
67% 18 km/h
21:00 PM
7° / 12°
7° / 12°
Overcast
70% 18 km/h
22:00 PM
7° / 12°
7° / 12°
Overcast
71% 19 km/h
23:00 PM
7° / 12°
7° / 12°
Clear Sky
72% 24 km/h
00:00 AM
6° / 11°
6° / 11°
Clear Sky
73% 20 km/h
01:00 AM
6° / 11°
6° / 11°
Clear Sky
74% 17 km/h
02:00 AM
6° / 10°
6° / 10°
Clear Sky
76% 14 km/h
03:00 AM
6° / 10°
6° / 10°
Clear Sky
76% 16 km/h
04:00 AM
7° / 10°
7° / 10°
Clear Sky
81% 15 km/h
05:00 AM
7° / 9°
7° / 9°
Clear Sky
86% 14 km/h
06:00 AM
7° / 9°
7° / 9°
Clear Sky
87% 15 km/h

30 Day Averages and Extremes

  • Average high 16.3°C
  • Average low 10.57°C
  • Hottest day 21°C (21 September 2026)
  • Coldest day 0°C (06 October 2026)
  • Average humidity 79.57%
  • Days with precipitation 24 days
  • Highest precipitation 71 mm (12 September 2026)

Yesterday's Data

  • Max: 18°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 warm weather in Caerphilly, with temperatures between 17ºC to 20ºC (62.6ºF to 68.0ºF), you might consider wearing:
- Cotton or linen fabrics
- Sunglasses
- Light, breathable socks
- Sun hat or cap

Temperature

Early
13°C / 15°C
Morning
14°C / 17°C
Afternoon
9°C / 18°C
Evening
7°C / 12°C

Air quality

Good

Satisfactory air quality, minimal pollution, low risk

  • CO2 434
  • CO 181
  • NH3 2
  • NO2 5
  • O3 55
  • PM10 4
  • PM25 3
  • SO2 0
  • CH4 1,428

Sunrise / Sunset

06:02
18:06