The Channel Islands have a similar climate to that of the UK, although it tends to be slightly warmer and sunnier. Temperatures remain moderate throughout the year, and rainfall is commonplace. Winters tend to be damp and cloudy, while summers are warm and sunny. With a relatively mild and predictable climate, the Channel Islands are rarely subject to extreme weather or temperature variations.

July and August are the warmest months. Maximum temperatures hover between 66°F (19°C) and 71°F (22°C). Conversely, the coolest and wettest months are January and February. This time of year also brings the highest chance of snow, which is a rare occurrence. Typical maximum temperatures in winter are between 46°F (8°C) and 50°F (10°C).