Weather in Guernsey for December 2025
In general, the average temperature in Guernsey at the beginning of December is 12 °C. As the month progressed, temperatures tended to slightly decrease, reaching an average of 11.9 °C by the end of December.
Guernsey experiences heavy rainfall in December, with over 20 rainy days and an average total precipitation 154.4 mm.
Temperatures
Rain 🌧️
Guernsey in December average weather
| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  12° | 2  11° | 3 11° | 4 13° | 5 12° | 6 12° | 7  13° |
| 8 11° | 9  12° | 10  12° | 11 12° | 12 11° | 13 10° | 14 11° |
| 15 12° | 16  12° | 17  12° | 18 13° | 19 12° | 20 11° | 21 12° |
| 22  12° | 23  12° | 24 13° | 25 12° | 26 12° | 27 12° | 28 12° |
| 29 11° | 30 12° | 31 12° |
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Temperatures trend during December in Guernsey
December weather day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Dec. | Light rain shower | 12° /10° | 4.9 mm | 3 | |
| 2 Dec. | Light sleet showers | 11° /7° | 4.5 mm | 3 | |
| 3 Dec. | Light rain shower | 11° /9° | 10.6 mm | 3 | |
| 4 Dec. | Light rain shower | 13° /9° | 8.3 mm | 3 | |
| 5 Dec. | Light rain shower | 12° /10° | 6.9 mm | 3 | |
| 6 Dec. | Patchy rain possible | 12° /9° | 0.7 mm | 3 | |
| 7 Dec. | Moderate rain | 13° /8° | 12.4 mm | 3 | |
| 8 Dec. | Light rain shower | 11° /9° | 4.5 mm | 3 | |
| 9 Dec. | Light rain | 12° /10° | 7.1 mm | 3 | |
| 10 Dec. | Moderate or heavy rain with thunder | 12° /10° | 8.7 mm | 3 | |
| 11 Dec. | Light rain shower | 12° /10° | 1.5 mm | 3 | |
| 12 Dec. | Light rain shower | 11° /9° | 3.7 mm | 3 | |
| 13 Dec. | Light rain shower | 10° /7° | 2.8 mm | 3 | |
| 14 Dec. | Light rain shower | 11° /8° | 1.8 mm | 3 | |
| 15 Dec. | Patchy rain possible | 12° /10° | 0.4 mm | 3 | |
| 16 Dec. | Partly cloudy | 12° /10° | 0.2 mm | 4 | |
| 17 Dec. | Sunny | 12° /9° | 0.6 mm | 4 | |
| 18 Dec. | Patchy rain possible | 13° /11° | 3.6 mm | 3 | |
| 19 Dec. | Light rain | 12° /8° | 5.1 mm | 3 | |
| 20 Dec. | Patchy rain possible | 11° /9° | 2.3 mm | 3 | |
| 21 Dec. | Patchy rain possible | 12° /10° | 2.3 mm | 3 | |
| 22 Dec. | Moderate or heavy rain shower | 12° /9° | 5.4 mm | 3 | |
| 23 Dec. | Heavy rain at times | 12° /10° | 3.1 mm | 3 | |
| 24 Dec. | Patchy rain possible | 13° /11° | 1.4 mm | 3 | |
| 25 Dec. | Patchy rain possible | 12° /10° | 4 mm | 3 | |
| 26 Dec. | Patchy rain possible | 12° /9° | 0.5 mm | 3 | |
| 27 Dec. | Patchy rain possible | 12° /10° | 1.3 mm | 3 | |
| 28 Dec. | Moderate rain at times | 12° /10° | 4.3 mm | 3 | |
| 29 Dec. | Patchy rain possible | 11° /9° | 2.7 mm | 3 | |
| 30 Dec. | Moderate or heavy rain shower | 12° /9° | 7.1 mm | 3 | |
| 31 Dec. | Moderate or heavy rain shower | 12° /10° | 14.2 mm | 3 | |
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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.
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Guernsey in December - FAQ
December rainfall patterns in Guernsey
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Where is Guernsey?Get accurate weather forecasts for Guernsey, located at latitude 49.46 and longitude -2.535. Stay updated with localized weather information tailored for Guernsey.