Windsor Weather in September

September in Windsor averages 21°C (70°F) during the day and 11°C (52°F) at night. Quite a bit of rainfall is typical this month, with around 103 mm (4.1 in) on average. An umbrella is a good idea.

Rainfall in Windsor in September

On average, there are about 10 days with rain during this month, averaging 103 mm (4.1 in). When it rains this month, it tends to come down fairly heavily. Showers can be substantial even if they don't last all day.

Temperature in Windsor in September

Expect highs of 21°C (70°F) in Windsor in September, with nights dropping to around 11°C (52°F). Temperatures can feel cooler in the morning and evening, so layering is often the best approach. At 11°C (52°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 Windsor in September

You can expect a moderate amount of sunlight, with approximately 180 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. July and August typically offer the best weather for Windsor.