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Weather in Cornwell for December 2026

Your guide to Cornwell weather in December - trends and predictions

    Temperatures

  • In general, the average temperature in Cornwell at the beginning of December is 9.1 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 4.3 °C by the end of December.

    • Rain 🌧️

  • Cornwell in December brings notable rainfall, with an average of 16 rainy days and a total precipitation of 102.6 mm.

    • More

  • Is December a good time to visit Cornwell? check out the best time to travel to Cornwell page.

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
15
Dry days
Average rainy days
16
Rainy days
Average snowy days
0
Snow days
Average temperatures
8°/4°
Temperatures
Average wind speed
30 km/h
Avg max wind
Average humidity
87 %
Avg humidity

Cornwell Weather December

Move between months or click on a day
November
January
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Light rain shower
10°
2
Light rain shower
8°
3
Patchy rain possible
8°
4
Patchy rain possible
7°
5
Moderate rain
9°
6
Light drizzle
9°
7
Light rain
13°
8
Light drizzle
10°
9
Light rain
12°
10
Patchy rain possible
10°
11
Patchy rain possible
9°
12
Light rain
9°
13
Mist
7°
14
Overcast
9°
15
Light drizzle
11°
16
Moderate or heavy rain with thunder
9°
17
Patchy rain possible
8°
18
Light rain shower
10°
19
Cloudy
7°
20
Patchy rain possible
7°
21
Light rain shower
8°
22
Mist
9°
23
Overcast
7°
24
Overcast
5°
25
Partly cloudy
3°
26
Sunny
4°
27
Overcast
6°
28
Overcast
5°
29
Overcast
5°
30
Patchy rain possible
4°
31
Sunny
3°

Temperatures trend during December in Cornwell

See the weather trend as well as the moving average line

December weather in Cornwell day by day

Click on a date for more information
November January
Date Weather Temperatures Rain UV More
1 Dec. Light rain shower
Light rain shower
 10° /5° 12.6 mm 0
2 Dec. Light rain shower
Light rain shower
 8° /3° 0.8 mm 0
3 Dec. Patchy rain possible
Patchy rain possible
 8° /3° 0.3 mm 0
4 Dec. Patchy rain possible
Patchy rain possible
 7° /2° 2.4 mm 0
5 Dec. Moderate rain
Moderate rain
 9° /2° 20.1 mm 0
6 Dec. Light drizzle
Light drizzle
 9° /7° 4.3 mm 0
7 Dec. Light rain
Light rain
 13° /6° 3.6 mm 0
8 Dec. Light drizzle
Light drizzle
 10° /8° 0.8 mm 0
9 Dec. Light rain
Light rain
 12° /9° 14.7 mm 0
10 Dec. Patchy rain possible
Patchy rain possible
 10° /6° 0 mm 0
11 Dec. Patchy rain possible
Patchy rain possible
 9° /6° 0 mm 0
12 Dec. Light rain
Light rain
 9° /5° 3.7 mm 0
13 Dec. Mist
Mist
 7° /4° 0 mm 0
14 Dec. Overcast
Overcast
 9° /5° 0 mm 0
15 Dec. Light drizzle
Light drizzle
 11° /9° 1.9 mm 0
16 Dec. Moderate or heavy rain with thunder
Moderate or heavy rain with thunder
 9° /3° 6.7 mm 0
17 Dec. Patchy rain possible
Patchy rain possible
 8° /2° 7.4 mm 0
18 Dec. Light rain shower
Light rain shower
 10° /5° 19 mm 0
19 Dec. Cloudy
Cloudy
 7° /4° 0 mm 0
20 Dec. Patchy rain possible
Patchy rain possible
 7° /4° 0.3 mm 0
21 Dec. Light rain shower
Light rain shower
 8° /6° 3.9 mm 0
22 Dec. Mist
Mist
 9° /5° 0.1 mm 0
23 Dec. Overcast
Overcast
 7° /4° 0 mm 0
24 Dec. Overcast
Overcast
 5° /2° 0 mm 0
25 Dec. Partly cloudy
Partly cloudy
 3° /0° 0 mm 0
26 Dec. Sunny
Sunny
 4° /0° 0 mm 0
27 Dec. Overcast
Overcast
 6° /0° 0 mm 0
28 Dec. Overcast
Overcast
 5° /1° 0 mm 0
29 Dec. Overcast
Overcast
 5° /1° 0 mm 0
30 Dec. Patchy rain possible
Patchy rain possible
 4° /0° 0 mm 0
31 Dec. Sunny
Sunny
 3° /0° 0 mm 0
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Important Notice
Our weather forecast for Cornwell in December is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Cornwell forecast closer to your planned date for the most up-to-date weather information.
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Cornwell in December - FAQ

What are the expected maximum and minimum temperatures in Cornwell during December?
Prepare for cooler days with highs just around 8° and colder nights, dipping below 4°.

How much rainfall should be expected in Cornwell during December?
Significant rainfall exceeding 102.6 mm is expected in Cornwell during December, occurring over more than 16 days. Preparing for wet conditions is recommended in your planning.

Will it snow in Cornwell in December 2026?
Cornwell typically sees 0 cm of snowfall during December.

What are the typical wind conditions in Cornwell during December?
The average wind speed in Cornwell during December is 30 km/h, suggesting breezy to windy conditions, depending on your activities.

December rainfall patterns in Cornwell

Explore the daily rainfall trends and prepare for Cornwells December weather 💧
Typically, Cornwell has 16 rainy days in December with a total of 102.6 mm of rainfall.

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Location coordinates Where is Cornwell?

Get accurate weather forecasts for Cornwell, located at latitude 51.941 and longitude -1.607. Stay updated with localized weather information tailored for Cornwell.

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