Chelsea Weather in September

September in Chelsea sees daytime temperatures around 22°C (72°F) and lows of 10°C (50°F) at night. With around 100 mm (3.9 in) of rainfall expected, it's worth packing a rain jacket.

Rainfall in Chelsea in September

Typically around 12 days of rainfall are expected, averaging 100 mm (3.9 in) for the month. Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.

Temperature in Chelsea in September

If you're visiting Chelsea in September, expect highs of 22°C (72°F) and overnight lows around 10°C (50°F). Even when the weather is stable, mornings and evenings can still feel distinctly cool. With overnight lows of 10°C (50°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.

Sunshine in Chelsea in September

The area enjoys a balanced 178 hours of sunlight, ensuring it's neither too overcast nor too sunny.

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