Saint Helier Jersey Weather in September

September in Saint Helier Jersey averages 19°C (66°F) during the day and 16°C (61°F) at night. Quite a bit of rainfall is typical this month, with around 83 mm (3.3 in) on average. An umbrella is a good idea.

Rainfall in Saint Helier Jersey in September

Based on our climate data of the past 30 years, about 13 days of rain are anticipated, with 83 mm (3.3 in) on average. The rainfall pattern this month is fairly balanced. Showers tend to be moderate rather than extreme.

Temperature in Saint Helier Jersey in September

Daytime highs in Saint Helier Jersey in September reach 19°C (66°F), with nights around 16°C (61°F). September is typically considered a summer month. A light jacket or extra layer can be useful, especially outside the warmest hours of the day. At 16°C (61°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.

Sunshine in Saint Helier Jersey in September

You can expect a moderate amount of sunlight, with approximately 182 hours. This means a pleasant mix of sun and overcast.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. August typically offers the best weather for Saint Helier Jersey.