Saint Peter Port in Winter
In winter (December, January and February), Saint Peter Port sees average daytime highs around 10°C and overnight lows near 8°C, with 293 mm of precipitation over about 46 wet days across the season. It is the coldest season of the year and the wettest season of the year.
Over the season highs ease from about 11°C in early December to 9°C by late February. The sky is clear or mostly clear about 12% of the time across winter, and the air most often feels dry.
Winter is Saint Peter Port's weakest season of the year to visit on our travel score. For the whole year in context, see Saint Peter Port's year-round climate.
- Avg daytime high
- 10°C
- coldest season of the year
- Avg overnight low
- 8°C
- Precipitation
- 293 mm
- 46 wet days
- Avg wind
- 34 km/h
- Travel score
- 1.9
- weakest season of the year
- Months
- Dec · Jan · Feb
Temperature in Saint Peter Port in Winter
Over the season highs ease from about 11°C in early December to 9°C by late February.
A typical winter day in Saint Peter Port reaches about 10°C and drops to 8°C overnight. The warmest of the three months is December, the coolest February.
Saint Peter Port weather by month
How the three winter months (December, January and February) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 10° / 8° | 98 | 15.7 | 8.4 | 1.8 |
| Feb | 9° / 7° | 74 | 13.3 | 9.8 | 1.7 |
| Mar | 10° / 8° | 58 | 11.5 | 11.5 | 2.0 |
| Apr | 11° / 9° | 50 | 9.7 | 13.4 | 2.6 |
| May | 13° / 11° | 45 | 7.9 | 15.1 | 3.6 |
| Jun | 15° / 13° | 42 | 7.5 | 16 | 4.7 |
| Jul | 17° / 15° | 36 | 6.9 | 15.6 | 5.7 |
| Aug | 17° / 16° | 50 | 8.6 | 14.2 | 5.9 |
| Sep | 17° / 15° | 57 | 9.4 | 12.4 | 5.5 |
| Oct | 15° / 14° | 107 | 15 | 10.5 | 4.1 |
| Nov | 13° / 11° | 121 | 17.7 | 8.9 | 2.8 |
| Dec | 11° / 9° | 121 | 17 | 8 | 2.2 |
Cloud cover in Winter
The sky is clear or mostly clear about 12% of the time across winter.
Chance of precipitation in Winter
Saint Peter Port gets around 293 mm of rain and snow over 46 wet days across winter. The line is the day-by-day chance of measurable precipitation.
Humidity in Winter
Most of winter feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Winter
Winds average 34 km/h across winter.
Sunrise & sunset in Winter
Daylight runs from about 8 h 18 min in early December to 10 h 36 min by late February. The lit band spans sunrise to sunset each day.
Solar energy in Winter
Average shortwave solar energy reaching the ground each day across winter, about 1.2 kWh/m².
Hazard calendar for Saint Peter Port
In winter, Saint Peter Port overlaps its rainy season season. The full year is below, with each hazard's peak months called out.
Saint Peter Port's rainy season runs September–March, when most of the year's rain falls.
Is winter a good time to visit Saint Peter Port?
Our two travel scores rate winter for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
winter is a weaker month for outdoor sightseeing in Saint Peter Port.
What to pack for Saint Peter Port in Winter
From winter's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In winter, Saint Peter Port sees daytime highs around 10°C and nights near 8°C. Pack a warm layer, rain gear and a windbreaker. About 46 days see rain.
Sea temperature near Saint Peter Port in Winter
The nearest coast averages about 11°C across winter — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea offshore is warmest in September at about 17°C and coldest in March near 9°C.
The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 10 | 10 | 9 | 10 | 12 | 14 | 16 | 17 | 17 | 16 | 14 | 12 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Cool | Cool | Cool | Cool | Bracing | Bracing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 10 | Bracing |
| Feb | 10 | Bracing |
| Mar | 9 | Bracing |
| Apr | 10 | Bracing |
| May | 12 | Bracing |
| Jun | 14 | Bracing |
| Jul | 16 | Cool |
| Aug | 17 | Cool |
| Sep | 17 | Cool |
| Oct | 16 | Cool |
| Nov | 14 | Bracing |
| Dec | 12 | Bracing |
UV index in Saint Peter Port in Winter
Clear-sky midday UV across winter averages around 1. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Saint Peter Port peaks around August 12 at about 6 (high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near January 1 at about 1 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 6 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 1 | 1 | 3 | 5 | 6 | 6 | 6 | 7 | 5 | 3 | 1 | 1 |
| Level | Low | Low | Moderate | Moderate | High | High | High | High | Moderate | Moderate | Low | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 1 | Low |
| Feb | 1 | Low |
| Mar | 3 | Moderate |
| Apr | 5 | Moderate |
| May | 6 | High |
| Jun | 6 | High |
| Jul | 6 | High |
| Aug | 7 | High |
| Sep | 5 | Moderate |
| Oct | 3 | Moderate |
| Nov | 1 | Low |
| Dec | 1 | Low |
Where is Saint Peter Port?
Saint Peter Port sits at 49.5°N, 2.5°W, 10 m above sea level, in Guernsey. The nearest listed city is Saint Helier, 43 km away.
Topography around Saint Peter Port
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Saint Peter Port.
Within 3 km, the terrain around Saint Peter Port has only modest variations in elevation — a maximum elevation change of 105 m around an average of 24 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 108 m; within 80 km, only modest variations in elevation — a maximum elevation change of 191 m.
The land around Saint Peter Port is covered by water (41%) and trees (25%) within 3 km, water (91%) within 16 km, and water (88%) within 80 km.
Guernsey travel facts
- Power plugs
- Type G
- 230 V · 50 Hz
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Saint Peter Port (49.4598°, -2.5353°, elevation 10 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.