Brighton Weather in September

September in Brighton sees daytime temperatures around 13°C (55°F) and lows of 5°C (41°F) at night. With around 63 mm (2.5 in) of rainfall expected, it's worth packing a rain jacket.

Rainfall in Brighton in September

Typically, about 14 days will experience rainfall, with an average of 63 mm (2.5 in) for the month. A fairly balanced picture this month, some wet days but nothing too extreme in terms of intensity.

Temperature in Brighton in September

Daytime highs in Brighton in September reach 13°C (55°F), with nights around 5°C (41°F). The difference between afternoon and evening temperatures is usually noticeable. Nights fall to 5°C (41°F), which is cold enough to feel it indoors too. A good thick duvet makes all the difference for a comfortable night's sleep.

Sunshine in Brighton in September

The month experiences a moderate amount of sunlight, with 134 hours of sunshine. This provides a nice balance between sunshine and clouds.

Wind Speed in Brighton in September

Wind speeds average 3 m/s (6 knots) during September. At this speed, light breezes keep leaves and small twigs in gentle motion while the wind also provides natural cooling. Since this is an average, some days are more tranquil while others have more persistent light winds that are more noticeable.

Average water temperature in September

The water sits at 9°C (48°F) this month, which is well below what most people consider swimmable. Wetsuits help, but expect it to still feel cold.

If you prefer dry days with pleasant temperatures, February and March 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.