Weather in Guernsey for October 2025
In general, the average temperature in Guernsey at the beginning of October is 16.4 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 15.3 °C by the end of October.
Guernsey experiences heavy rainfall in October, with over 20 rainy days and an average total precipitation 119.2 mm.
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Guernsey in October average weather
| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  17° | 2  17° | 3  16° | 4 15° | 5  16° | ||
| 6 17° | 7 17° | 8 18° | 9  17° | 10 16° | 11 16° | 12 17° |
| 13 17° | 14 16° | 15 15° | 16 16° | 17 16° | 18  17° | 19 16° |
| 20 16° | 21 15° | 22 17° | 23 16° | 24 16° | 25 15° | 26 14° |
| 27 15° | 28 16° | 29 15° | 30 16° | 31 16° |
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Temperatures trend during October in Guernsey
October weather day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Oct. | Sunny | 17° /15° | 0.4 mm | 5 | |
| 2 Oct. | Patchy light drizzle | 17° /15° | 1.3 mm | 4 | |
| 3 Oct. | Patchy rain possible | 16° /14° | 0.9 mm | 4 | |
| 4 Oct. | Patchy rain possible | 15° /14° | 0.1 mm | 4 | |
| 5 Oct. | Overcast | 16° /13° | 6.3 mm | 4 | |
| 6 Oct. | Sunny | 17° /14° | 1.7 mm | 5 | |
| 7 Oct. | Sunny | 17° /15° | 2.8 mm | 5 | |
| 8 Oct. | Sunny | 18° /16° | 2.3 mm | 5 | |
| 9 Oct. | Partly cloudy | 17° /15° | 0.8 mm | 5 | |
| 10 Oct. | Sunny | 16° /14° | 1.1 mm | 4 | |
| 11 Oct. | Patchy rain possible | 16° /14° | 0.4 mm | 4 | |
| 12 Oct. | Light rain shower | 17° /15° | 1.9 mm | 5 | |
| 13 Oct. | Light rain shower | 17° /14° | 9.4 mm | 4 | |
| 14 Oct. | Light rain shower | 16° /13° | 0.4 mm | 4 | |
| 15 Oct. | Patchy rain possible | 15° /13° | 1.8 mm | 4 | |
| 16 Oct. | Overcast | 16° /13° | 4.8 mm | 4 | |
| 17 Oct. | Overcast | 16° /13° | 0.5 mm | 4 | |
| 18 Oct. | Moderate rain | 17° /14° | 8.5 mm | 4 | |
| 19 Oct. | Light rain shower | 16° /14° | 9.3 mm | 4 | |
| 20 Oct. | Light rain shower | 16° /13° | 6.3 mm | 4 | |
| 21 Oct. | Light rain shower | 15° /13° | 5.6 mm | 4 | |
| 22 Oct. | Patchy light drizzle | 17° /14° | 1 mm | 5 | |
| 23 Oct. | Light rain shower | 16° /12° | 9.2 mm | 5 | |
| 24 Oct. | Light rain shower | 16° /13° | 6.6 mm | 4 | |
| 25 Oct. | Light rain shower | 15° /12° | 5.3 mm | 4 | |
| 26 Oct. | Light rain shower | 14° /12° | 4.5 mm | 4 | |
| 27 Oct. | Light rain shower | 15° /13° | 6.1 mm | 4 | |
| 28 Oct. | Light rain shower | 16° /13° | 6.9 mm | 4 | |
| 29 Oct. | Light rain shower | 15° /13° | 3.2 mm | 4 | |
| 30 Oct. | Light rain shower | 16° /14° | 3.5 mm | 5 | |
| 31 Oct. | Light rain shower | 16° /13° | 6.2 mm | 5 | |
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Guide for Guernsey in October
In Guernsey, October marks the transition from the mild autumn weather to the cooler temperatures of approaching winter. At the beginning of the month, Guernsey experiences relatively mild and pleasant weather, with average temperatures around 15°.
The early days of October often see a mix of sunny spells and occasional showers, creating a refreshing and invigorating atmosphere for outdoor activities.
As the month progresses towards the end of October, the weather in Guernsey gradually becomes cooler. Average temperatures drop to around 12°, and there is an increase in the frequency of rainy and overcast days.
The island may also experience stronger winds as autumn progresses, adding a touch of briskness to the air.
Overall, October in Guernsey offers a mix of transitional weather, with the earlier part of the month providing a more temperate climate suitable for outdoor exploration, while the latter part sees a shift towards cooler and potentially wetter conditions.
Visitors to Guernsey during this time should be prepared for varying weather patterns and pack accordingly to make the most of their trip.
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Guernsey in October - FAQ
What to pack to Guernsey in October?
As you prepare for your trip to Guernsey in October, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in Guernsey, during October, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Warm Clothing: Sweaters, hoodies, long pants
- Rain Gear: Lightweight, waterproof clothing
- Footwear
- Waterproof Shoes
- Accessories
- Scarves: To protect you from the cold wind
- Gloves/Mittens: Essential for cold weather
- Warm Hats: Warm hats for insulation in cold weather
- Umbrellas/Raincoats: For rainy days
October rainfall patterns in Guernsey
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