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Weather in Guernsey for December 2026

Your guide to Guernsey weather in December - trends and predictions

    Temperatures

  • In general, the average temperature in Guernsey at the beginning of December is 11.8 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 10.7 °C by the end of December.

    • Rain 🌧️

  • Guernsey in December brings notable rainfall, with an average of 19 rainy days and a total precipitation of 127 mm.

    • More

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

Average dry days
12
Dry days
Average rainy days
19
Rainy days
Average snowy days
0
Snow days
Average temperatures
11°/9°
Temperatures
Average wind speed
47 km/h
Avg max wind
Average humidity
78 %
Avg humidity

Guernsey Weather December

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

Temperatures trend during December in Guernsey

See the weather trend as well as the moving average line

December weather in Guernsey day by day

Click on a date for more information
November January
Date Weather Temperatures Rain UV More
1 Dec. Light rain
Light rain
 12° /10° 7.9 mm 0.8
2 Dec. Light rain
Light rain
 11° /8° 4.1 mm 0.8
3 Dec. Light rain
Light rain
 11° /9° 8 mm 0.7
4 Dec. Light rain
Light rain
 12° /9° 8.2 mm 0.7
5 Dec. Light rain
Light rain
 12° /10° 7.6 mm 0.7
6 Dec. Patchy rain possible
Patchy rain possible
 12° /10° 1.5 mm 0.7
7 Dec. Moderate rain
Moderate rain
 13° /9° 12 mm 0.7
8 Dec. Light rain
Light rain
 12° /10° 5.9 mm 0.7
9 Dec. Light rain
Light rain
 12° /11° 6.3 mm 0.7
10 Dec. Moderate or heavy rain with thunder
Moderate or heavy rain with thunder
 12° /10° 5.8 mm 0.7
11 Dec. Light rain shower
Light rain shower
 12° /10° 1 mm 0.7
12 Dec. Light rain
Light rain
 11° /9° 3 mm 0.7
13 Dec. Light rain shower
Light rain shower
 11° /8° 1.9 mm 0.7
14 Dec. Light rain shower
Light rain shower
 11° /9° 1.2 mm 0.7
15 Dec. Patchy rain possible
Patchy rain possible
 12° /10° 1 mm 0.7
16 Dec. Patchy rain possible
Patchy rain possible
 12° /10° 0.2 mm 0.7
17 Dec. Patchy rain possible
Patchy rain possible
 11° /9° 1.2 mm 0.7
18 Dec. Light rain
Light rain
 13° /11° 6 mm 0.6
19 Dec. Light rain
Light rain
 12° /9° 3.6 mm 0.6
20 Dec. Light rain
Light rain
 11° /9° 3.4 mm 0.6
21 Dec. Light rain
Light rain
 12° /10° 3.4 mm 0.6
22 Dec. Light rain
Light rain
 11° /10° 4.2 mm 0.6
23 Dec. Patchy rain possible
Patchy rain possible
 12° /10° 2.3 mm 0.6
24 Dec. Patchy rain possible
Patchy rain possible
 12° /10° 1.1 mm 0.6
25 Dec. Light rain
Light rain
 11° /9° 3.1 mm 0.7
26 Dec. Patchy rain possible
Patchy rain possible
 11° /9° 0.4 mm 0.7
27 Dec. Patchy rain possible
Patchy rain possible
 11° /10° 1 mm 0.7
28 Dec. Light rain
Light rain
 11° /10° 3.2 mm 0.7
29 Dec. Patchy rain possible
Patchy rain possible
 11° /9° 2.1 mm 0.7
30 Dec. Light rain
Light rain
 11° /9° 5.7 mm 0.7
31 Dec. Moderate rain
Moderate rain
 11° /9° 10.7 mm 0.7
Next
Important Notice
Our weather forecast for Guernsey 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 Guernsey forecast closer to your planned date for the most up-to-date weather information.
Change Month
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Guide for Guernsey in December

In Guernsey, December marks the onset of winter, bringing with it cool and crisp weather conditions. At the beginning of the month, the island experiences relatively mild temperatures with an average high of 10° and a low of 6°.

The weather is often characterized by overcast skies and occasional rainfall, creating a damp and chilly atmosphere. Visitors can expect a mix of cloudy and sunny days, with a moderate breeze blowing in from the English Channel.

As the month progresses, the temperatures in Guernsey tend to drop further, with the average high reaching 8° and the low hovering around 4°. The island may experience more frequent rainfall towards the end of December, and occasional fog can also be expected.

Despite the cooler temperatures, Guernsey's natural beauty remains enchanting, offering a serene and peaceful setting for travelers seeking a tranquil winter escape.

Overall, December in Guernsey presents a wonderful opportunity to explore the island's charming villages, historic sites, and stunning coastal landscapes, albeit with the need for warm layers and waterproof attire.

Guernsey in December - FAQ

What are the expected maximum and minimum temperatures in Guernsey during December?
During December, expect a variety of temperatures with highs around 11° and lows near 9°, suitable for diverse activities and preferences.

How much rainfall should be expected in Guernsey during December?
Significant rainfall exceeding 127 mm is expected in Guernsey during December, occurring over more than 19 days. Preparing for wet conditions is recommended in your planning.

What are the typical wind conditions in Guernsey during December?
The average wind speed in Guernsey during December is 47 km/h, suggesting breezy to windy conditions, depending on your activities.

December rainfall patterns in Guernsey

Explore the daily rainfall trends and prepare for Guernseys December weather 💧
Typically, Guernsey has 19 rainy days in December with a total of 127 mm of rainfall.
Regions in Guernsey
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St Peter Port
Top locations in Guernsey
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Saint Peter Port
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