Weather in Cambridge in September 2025
Average weather
Average temperature in Cambridge in September
Going from a maximum of +90°F during the day to a minimum of +48°F during the night, the temperature in September averages around +73°F.
The average maximum temperature goes down 9% by the end of the month, compared with the beginning of the month, from +70°F to +66°F.
Is Cambridge warm or cold in September?
Cambridge is typically mild in September.
Maximum temperatures go down compared to the previous month from +72°F to +66°F. The minimum temperature also goes down from +55°F to +52°F.
Pack a light jacket as it will be warm in the day and cool in the evenings.
September is one of the warmest months in Cambridge, here is the comparison with other months:
Climate in Cambridge in September
| August | September | October | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +72°F | +66°F | +59°F | ||||
| Min. temperature | ||||||
| +43°F | +37°F | +27°F | ||||
| Max. temperature | ||||||
| +95°F | +90°F | +82°F | ||||
| Rainfall | ||||||
| 59 mm | 52 mm | 64 mm | ||||
| Wind | ||||||
| 3 m/s | 3 m/s | 3 m/s | ||||
| Humidity | ||||||
| 75% | 79% | 83% | ||||
| Air pressure | ||||||
| 1014 HPa | 1015 HPa | 1012 HPa | ||||
| Sunny days | ||||||
| 2 | 3 | 1 | ||||
| Cloudy days | ||||||
| 11 | 12 | 13 | ||||
| Rainy days | ||||||
| 17 | 15 | 16 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
September weather is still as ok as in August. It’s getting colder in September. From +72°F in the day, the average maximum temperature lowers to +66°F. As September arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 59 mm to 52 mm. Humidity rises from 75% to 79%. The average wind speed doesn’t change much during September, staying around 3 m/s. The good news is there are likely to be more sunny days in September, from 2 to 3.
October brings much the same weather, it remains ok.
Wind
The average wind speed is 3 m/s getting up to 7 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Cambridge is gradually increasing during September, going from 1 m/s to 3 m/s over the course of the month.
Rain
How was the weather last September in Cambridge?
Climate Change Over the Years
The climate in Cambridge in September has not changed that much over the last 43 years.
The average temperature was the lowest in 1987 (+55°F) and the highest in 2022 (+61°F). The driest year was 2011 with only 415 mm of rainfall, and the wettest year was 2014 with 1086 mm.
FAQ
Is September a good time to visit Cambridge?
Can you sunbathe in Cambridge in September?
Is Cambridge rainy in September?
Is it sunny in Cambridge in September?
Other cities in United Kingdom
Monthly weather in Cambridge
Source of the data
For this page, we’ve looked at the typical weather in Cambridge, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.