🇬🇬 Guernsey
National FlagGeography & Borders
This country has no land borders.
Introduction & Background
Guernsey (/ˈɡɜːrnzi/ⓘ; Guernésiais: Guernési; Template:Lang-fr) is an island in the English Channel off the coast of Normandy that is part of the Bailiwick of Guernsey, a British Crown Dependency.
It is the second largest of the Channel Islands, an island group roughly north of Saint-Malo and west of the Cotentin Peninsula. The jurisdiction consists of ten parishes on the island of Guernsey, three other inhabited islands (Herm, Jethou and Lihou), and many small islets and rocks.
Geography & Climate
Climate, weather, and air quality data are based on historical records for the coordinates of the capital city, Saint Peter Port.
Temperature (2025)
0°10°20°30°
Jan
5.2° / 8.7°
Feb
5.8° / 9.4°
Mar
7.4° / 11.8°
Apr
9.6° / 15.2°
May
11.7° / 16.9°
Jun
15° / 21.1°
Jul
16.3° / 20.7°
Aug
16.6° / 21.1°
Sep
14.6° / 18.3°
Oct
13° / 16°
Nov
10.7° / 13.4°
Dec
8.1° / 10.9°
Precipitation & Snow (2025)
Rain (mm) Snow (cm)
Atmospheric Pressure (2025)
1014.4-2Jan
1021+4.6Feb
1016-0.4Mar
1015.6-0.8Apr
1018.4+2May
1018.5+2.1Jun
1017.3+0.9Jul
1017+0.6Aug
1016.2-0.2Sep
1015.9-0.5Oct
1011.4-5Nov
1014.7-1.7Dec
Thunderstorm Days (2025)
0Jan
0Feb
0Mar
0Apr
0May
0Jun
0Jul
0Aug
0Sep
0Oct
0Nov
0Dec
Wind Speed (2025)
Air Quality — Monthly Averages (2025)
| Metric | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 μg/m³ | 6.2 | 8.4 | 9.6 | 10.6 | 6.5 | 5.6 | 4.9 | 6.1 | 4.6 | 5.7 | 3.6 | 5.6 |
| PM10 μg/m³ | 12 | 13.8 | 14.4 | 15.5 | 12.7 | 11.3 | 10.7 | 13.1 | 12.7 | 14.3 | 12.2 | 14.2 |
| O₃ μg/m³ | 72.6 | 72.4 | 76.3 | 86.9 | 86.5 | 75 | 70.7 | 79.4 | 73.2 | 75.6 | 73.7 | 69 |
| NO₂ μg/m³ | 2.3 | 2.9 | 3.9 | 3 | 2.6 | 1.9 | 2.6 | 2 | 1.5 | 1.9 | 1.8 | 2.4 |
| SO₂ μg/m³ | 0.2 | 0.4 | 0.4 | 0.4 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.4 |
| CO μg/m³ | 169 | 193 | 176 | 165 | 134 | 135 | 126 | 143 | 136 | 133 | 129 | 143 |
Pollen Levels — Monthly (2025)
| Type | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Grass | 0 | 0 | 0 | 0 | 1 | 6 | 2 | 1 | 0 | 0 | 0 | 0 |
| Birch | 0 | 0 | 2 | 23 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Alder | 0 | 0 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Ragweed | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Mugwort | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Olive | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
⛰️ Highest Elevation
Le Moulin114 m / 374 ft
📷 Unknown
- Map Locations: Google Maps | OpenStreetMap
People & Society
Total Population64,781
Annual Growth RateN/AN/A
Life ExpectancyN/AAverage lifespan at birth
Fertility RateN/ABirths per woman