Cornwall, United Kingdom Weather

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

Current conditions

Updated:
18°C
64.4°F
°C °F

Condition: Overcast

Pressure: 1,011 hPa

Feel like: 16 °C

Temperature: 18°C

Cloud: 91%

Humidity: 76%

Wind: WNW - 17 km/h

Visibility: 51.72 km

Weather forecast

Wed
05 Aug
14°C / 19°C
Drizzle
Thu
06 Aug
11°C / 20°C
Overcast
Fri
07 Aug
7°C / 21°C
Drizzle
Sat
08 Aug
15°C / 23°C
Drizzle
Sun
09 Aug
13°C / 19°C
Overcast
Hourly forecast today:
22:00 PM
13° / 18°
13° / 18°
Overcast
76% 33 km/h
23:00 PM
13° / 17°
13° / 17°
Overcast
75% 31 km/h
00:00 AM
12° / 17°
12° / 17°
Clear Sky
73% 33 km/h
01:00 AM
12° / 16°
12° / 16°
Clear Sky
75% 29 km/h
02:00 AM
11° / 16°
11° / 16°
Clear Sky
73% 33 km/h
03:00 AM
10° / 16°
10° / 16°
Clear Sky
69% 38 km/h
04:00 AM
9° / 16°
9° / 16°
Clear Sky
65% 38 km/h
05:00 AM
9° / 16°
9° / 16°
Overcast
64% 37 km/h
06:00 AM
9° / 16°
9° / 16°
Clear Sky
63% 34 km/h
07:00 AM
10° / 16°
10° / 16°
Partly Cloudy
65% 46 km/h
08:00 AM
9° / 17°
9° / 17°
Mainly Clear
58% 44 km/h

30 Day Averages and Extremes

  • Average high 19.77°C
  • Average low 12.77°C
  • Hottest day 25°C (22 July 2026)
  • Coldest day 0°C (17 August 2026)
  • Average humidity 70.53%
  • Days with precipitation 19 days
  • Highest precipitation 41 mm (03 August 2026)

Yesterday's Data

  • Max: 22°C
  • Min: 18°C
  • Total Precipitation: 6 mm

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

Temperature and possibility of rain in Cornwall in the coming days

Rainfall in Cornwall in the coming days

Cornwall Climate Summary

Cornwall features a Marine west coast, warm summer (Köppen classification: Cfb), with an average annual temperature of 12.23ºC (54.01ºF), which is about 1.48% higher than the national average for United Kingdom. Annually, the city experiences approximately 60.54 millimeters (2.38 inches) of rainfall, spread across 139.26 rainy days, accounting for 38.15% of the year.

Longitude 50.2660471
Latitude -5.0527125
Yearly high temperature 13.12ºC (55.62ºF)
Yearly low temperature 10.44ºC (50.79ºF)
Hottest month July 17.81ºC (64.06ºF)
Coldest month December 8.21ºC (46.78ºF)
Yearly precip 60.54mm (2.38in)
Days with rainfall 139.26 days (38.15%)
Driest month May (83.2%)
Wettest month December (80.38%)

Weather averages by month

Month High / Low (°C) Rain
January 9.27° / 7.02° 14.73 days
February 8.94° / 6.63° 12.0 days
March 9.75° / 6.91° 11.27 days
April 11.39° / 8.25° 9.18 days
May 13.37° / 10.2° 7.0 days
June 15.82° / 12.67° 10.73 days
July 17.81° / 14.76° 8.27 days
August 17.78° / 15.09° 11.73 days
September 16.62° / 13.86° 9.45 days
October 14.46° / 12.04° 13.45 days
November 11.85° / 9.61° 15.09 days
December 10.38° / 8.21° 16.36 days

Cornwall's weather

Frequently asked questions

1. What is the hottest month in Cornwall?

July has the highest average monthly temperature (daily mean of 17.81ºC) and December are the coolest (daily mean of 8.21ºC).

2. What should I wear in Cornwall today?

For today's mild weather in Cornwall, with temperatures between 16ºC to 19ºC (60.8ºF to 66.2ºF), consider wearing:
- Lightweight sweater or cardigan
- Casual sneakers or loafers
- Long-sleeve shirt or blouse
- Scarf (optional)

Temperature

Early
18°C / 19°C
Morning
18°C / 20°C
Afternoon
16°C / 21°C
Evening
15°C / 18°C

Air quality

Good

Satisfactory air quality, minimal pollution, low risk

  • CO2 432
  • CO 111
  • NH3 0
  • NO2 1
  • O3 58
  • PM10 10
  • PM25 3
  • SO2 0
  • CH4 1,374

Sunrise / Sunset

04:54
19:57