Cambridge Weather in September

September in Cambridge sees daytime temperatures around 15°C (59°F) and lows of 6°C (43°F) at night. Pack a rain jacket because some rainfall is likely.

Rainfall in Cambridge in September

Based on our climate data of the past 30 years, about 15 days of rain are anticipated, with 56 mm (2.2 in) on average. Rain is frequent but mostly light this month, with brief showers more common than heavy downpours.

Temperature in Cambridge in September

Daytime highs in Cambridge in September reach 15°C (59°F), with nights around 6°C (43°F). Conditions are often most pleasant around the middle of the day. With overnight lows of 6°C (43°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.

Sunshine in Cambridge in September

With approximately 194 hours of sunshine, the days are filled with clear skies. It makes it a perfect month for being outside.

Wind Speed in Cambridge in September

September sees wind speeds averaging 4 m/s (8 knots). You'll experience variable conditions with moderate winds that create small waves on water and keep branches moving. Conditions range from light winds to moderate breezes throughout the month.

Average water temperature in September

The water temperature is only 13°C (55°F) this month, cold enough that most people will want to stay out. Hardy swimmers may manage a quick dip, but it won't be comfortable.

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