Map of Guernsey in United Kingdom

Guernsey Climate

Guernsey is a city within United Kingdom. This is in the continent of Europe.

Best time to visit Guernsey

The best time to visit Guernsey is during months May, June, July, August, September and October when the average temperatures are perhaps a little cooler than preferred but still a pleasant 10°C / 50.0°F to 20°C / 68.0°F. If you don't mind bringing a coat, you might also enjoy visiting Guernsey during January, February, March, April, November and December but average temperatures are fairly cool (between 0°C / 32.0°F and 10°C / 50.0°F).


The warmest time of year in Guernsey is in August when it is 16.6°C / 61.9°F on average, but could get up to 19.5°C / 67.1°F maximum. On the other hand, the coldest time of year in Guernsey is in February when it is 6.3°C / 43.3°F on average, but could get down to 4.4°C / 43.3°F minimum.

  • Freezing months: 0 (0°C / 32.0°F and below)
  • Cold months: 6 (0°C / 32.0°F to 10°C / 50.0°F)
  • Cool months: 6 (10°C / 50.0°F to 20°C / 68.0°F)
  • Warm months: 0 (20°C / 68.0°F to 30°C / 86.0°F)
  • Hot months: 0 (30°C / 86.0°F to 40°C / 104.0°F)
  • Boiling months: 0 (40°C / 104.0°F and above)

Guernsey Climate Chart

Below are the climate charts for Guernsey which resides in United Kingdom.

Temperature tables

The first table is for the average temperatures across the year in degrees Celsius. The cells that are BLUE show the coldest months and the cells that are PINK show the hottest months.

Month:JanFebMarAprMayJunJulAugSepOctNovDec
Average Temperature in °C6.556.37.48.711.551416.216.615.0512.69.557.8
Max Temperature in °C8.48.29.611.214.416.919.219.517.614.711.49.6
Min Temperature in °C4.74.45.26.28.711.113.213.712.510.57.76

This second table is for the average temperatures across the year in degrees Fahrenheit. Cells in BLUE are the coldest months and cells in PINK are the hottest months.

Month:JanFebMarAprMayJunJulAugSepOctNovDec
Average Temperature in °F43.843.345.347.752.857.261.261.959.154.749.246.0
Max Temperature in °F47.146.849.352.257.962.466.667.163.758.552.549.3
Min Temperature in °F40.539.941.443.247.752.055.856.754.550.945.942.8

Rainfall figures

This table is for the amount of rainfall (both in millimetres and inches) and number of rainy days in Guernsey throughout the year.

Month:JanFebMarAprMayJunJulAugSepOctNovDec
Total rainfall in MM89.276.566.751.149.646.237.645.866.889.197.9107.3
Total rainfall in Inches3.53.02.62.02.01.81.51.82.63.53.94.2
Total number of rainy days1915.916.113.312.410.39.711.113.315.31919.1
Chances of rain61.3%56.8%51.9%44.3%40.0%34.3%31.3%35.8%44.3%49.4%63.3%61.6%

Guernsey Climate Graph

Below is the climate graph for Guernsey. It shows both the average temperatures throughout the year in degrees Celsius and also the average total rainfall in millimetres.

Guernsey Climate Graph with temperatures in °C and rainfall in millimetres

Below is the climate graph for Guernsey with both the average temperatures throughout the year in degrees Fahrenheit and also the average total rainfall in inches.

Guernsey Climate Graph with temperatures in °F and rainfall in inches