Grimsby Weather in September

September in Grimsby sees daytime temperatures around 23°C (73°F) and lows of 15°C (59°F) at night. With around 85 mm (3.3 in) of rainfall expected, it's worth packing a rain jacket.

Rainfall in Grimsby in September

Expect around 11 days of rain based on historical data, with 85 mm (3.3 in) average. The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.

Temperature in Grimsby in September

If you're visiting Grimsby in September, expect excellent temperatures with highs of 23°C (73°F) and overnight lows of 15°C (59°F). This kind of day-to-night contrast is typical for this time of year. At 15°C (59°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 Grimsby in September

The area enjoys a moderate level of sunlight, with around 178 hours. It's a good balance between sunny and cloudy days.

If your ideal day consists of dry skies and pleasant temperatures, June, July, August and September typically offer the best circumstances for Grimsby.