Slough Weather in September

September in Slough typically sees daytime highs of 20°C (68°F) and nighttime lows of 11°C (52°F). Expect some rainfall during the month.

Rainfall in Slough in September

Based on our climate data of the past 30 years, about 12 days of rain are anticipated, with 55 mm (2.2 in) on average. A fairly balanced picture this month, some wet days but nothing too extreme in terms of intensity.

Temperature in Slough in September

September tends to be one of the excellent months in Slough, with 20°C (68°F) in the afternoon and 11°C (52°F) overnight. This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. Nights cool down to 11°C (52°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions.

Sunshine in Slough in September

The month experiences a moderate amount of sunlight, with 155 hours of sunshine. This provides a nice balance between sunshine and clouds.

Wind Speed in Slough in September

Average wind speeds reach 3 m/s (6 knots) in September, creating light breezes that feel pleasant throughout the day. Some days are calmer, while others bring slightly more active breezes.

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