Stornoway Weather in September

Stornoway in September averages 16°C (61°F) during the day and 11°C (52°F) at night. Keep in mind that quite a bit of rainfall is expected this month.

Rainfall in Stornoway in September

Looking at the last 30 years, the data shows about 24 days with rain, averaging 108 mm (4.3 in) for the month. This month brings frequent, heavy showers. Both the number of wet days and the rainfall totals are on the high side.

Temperature in Stornoway in September

Daytime highs in Stornoway in September reach 16°C (61°F), with nights around 11°C (52°F). This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. Nights drop to around 11°C (52°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable.

Sunshine in Stornoway in September

The month brings about 107 hours of sunlight, offering a comfortable mix of sun and overcast.

If you prefer dry days with pleasant temperatures, May, June and July typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.