Kilmarnock Weather in September

September in Kilmarnock sees daytime temperatures around 17°C (63°F) and lows of 10°C (50°F) at night. With around 109 mm (4.3 in) of rainfall expected, it's worth packing a rain jacket.

Rainfall in Kilmarnock in September

This month experiences about 19 days of rain according to historical data, averaging 109 mm (4.3 in). This is a wet month with frequent and often heavy showers. Both the number of rain days and the total rainfall are high.

Temperature in Kilmarnock in September

If you're visiting Kilmarnock in September, expect highs of 17°C (63°F) and overnight lows around 10°C (50°F). This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. At 10°C (50°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 Kilmarnock in September

You can expect a moderate amount of sunlight, with approximately 117 hours. This means a pleasant mix of sun and overcast.

If you prefer enjoying temperate temperatures and rain-free days, May, June, July and August 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.