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Cumbria weather in September

Considering a trip to Cumbria this September and wondering about the expected weather conditions? Find all the crucial information you need right here, addressing your question:

What is the weather like in Cumbria in September?

Cumbria is a region in the United Kingdom. September in Cumbria generally has moderate temperatures, with precipitation levels ranging from moderate to high.

You can expect moderate maximum daytime temperatures of around 17°C and nighttime temperatures around 10°C in Windermere.

In September, precipitation varies across different areas. From moderate rainfall in Gilsland with an average of 76 mm to high rainfall in St Bees with 144 mm. Windermere enjoys a balanced 142 hours of sunlight. Ensuring it's neither too overcast nor too sunny.

For a closer look at September's conditions in Cumbria, see the map below. For a more detailed look at Cumbria's yearly weather, check out our Cumbria climate page.

Where to go in Cumbria in September

Find the average weather conditions in September for the most popular destinations in Cumbria on the map below. Click on a destination dot for more detailed information.

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Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

Popular destinations in Cumbria

What is the weather like in September for the 5 most popular destinations in Cumbria?

Average weather in Windermere

In September Windermere generally has moderate temperatures with maximum daytime temperatures around 17°C, minimum nighttime temperatures around 10°C and high monthly rainfall. So on average the conditions are unpleasant that month.

Windermere
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
19°C 
12°C 
181 hours 
131 mm 
18 days 
17°C 
10°C 
142 hours 
119 mm 
19 days 
October   >> October
>>  
13°C 
7°C 
97 hours 
147 mm 
20 days 
poor 
Climate in Windermere

Average weather in Keswick

In September Keswick generally has moderate temperatures with maximum daytime temperatures around 17°C, minimum nighttime temperatures around 10°C and high monthly rainfall. So on average the conditions are unpleasant that month.

Keswick
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
19°C 
12°C 
125 mm 
18 days 
17°C 
10°C 
112 mm 
19 days 
October   >> October
>>  
13°C 
7°C 
136 mm 
21 days 
poor 
Climate in Keswick

Average weather in Bowness-on-Windermere

In September Bowness-on-Windermere generally has moderate temperatures with maximum daytime temperatures around 17°C, minimum nighttime temperatures around 10°C and high monthly rainfall. So on average the conditions are unpleasant that month.

Bowness-on-Windermere
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
19°C 
12°C 
181 hours 
132 mm 
18 days 
17°C 
10°C 
142 hours 
121 mm 
19 days 
October   >> October
>>  
13°C 
7°C 
97 hours 
149 mm 
20 days 
poor 
Climate in Bowness-on-Windermere

Average weather in Ambleside

In September Ambleside generally has moderate temperatures with maximum daytime temperatures around 17°C, minimum nighttime temperatures around 10°C and high monthly rainfall. So on average the conditions are unpleasant that month.

Ambleside
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
18°C 
12°C 
181 hours 
130 mm 
18 days 
17°C 
10°C 
142 hours 
119 mm 
19 days 
October   >> October
>>  
13°C 
7°C 
97 hours 
145 mm 
20 days 
poor 
Climate in Ambleside

Average weather in Penrith

In September Penrith generally has moderate temperatures with maximum daytime temperatures around 16°C, minimum nighttime temperatures around 9°C and moderate monthly rainfall. So on average the conditions are tolerable that month.

Penrith
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
19°C 
11°C 
110 mm 
17 days 
16°C 
9°C 
93 mm 
18 days 
October   >> October
>>  
13°C 
6°C 
112 mm 
19 days 
poor 
Climate in Penrith

Is your destination not in the list? Have a look at other destinations in Cumbria, in the United Kingdom.

Is September the best time to visit Cumbria?

Given the typically unpleasant weather conditions in Windermere, September may not be the ideal time to visit Cumbria.

Generally speaking, the best visiting conditions can be found in May, July and August offering mostly tolerable weather in Windermere. On the other hand, the weather in January, February, March, October, November and December tend to be poor.

Interested in more climate information?

We have much more information about the climate in Cumbria. Interested in the weather conditions in a specific month? Select the month below.

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  • Weather and climate has detailed information for every country in the world. Are you going to the United Kingdom? Get detailed historical weather averages for many cities in the United Kingdom.

    Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal climate conditions. Find out where to go with our weather planner.