Windermere

Cumbria Weather in September

Average temperatures, rainfall, sunshine and the best places to visit in Cumbria, the United Kingdom in September.

Thinking about venturing to Cumbria, the United Kingdom this September and curious about the weather conditions to expect? This page holds all the key information you seek, responding to your question:

What to Expect in Cumbria in September

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

Temperatures

You can expect mild maximum daytime temperatures of around 17°C (63°F) and nighttime temperatures around 10°C (50°F) in Windermere.

For a closer look at conditions across Cumbria, the United Kingdom, refer to the map below.

Precipitation

In September, precipitation varies across different areas. From moderate rainfall in Gilsland with an average of 76 mm (3 in) to high rainfall in St Bees with 144 mm (5.7 in).

Average sunshine

Sunshine levels are moderate in most locations. Windermere typically sees 142 hours of sunlight, creating comfortable conditions that aren't too bright or too dim. Looking for something sunnier? Our weather planner helps you discover destinations with more reliable sunshine.

Explore Cumbria by month

Pick a month to see the average temperature, rainfall and sunshine in Cumbria — and find the best time to visit. (based on Windermere)

Best Places to Visit in Cumbria in September

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Cumbria.

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Popular Destinations in Cumbria

What is the weather like in September for some of the most popular destinations in Cumbria, the United Kingdom?

Temperature range in Cumbria (September)

Precipitation variation in Cumbria (September)

Windermere

In September Windermere generally has moderate temperatures with maximum daytime temperatures around 17°C (63°F), minimum nighttime temperatures around 10°C (50°F) and high monthly rainfall. So on average the conditions are unpleasant that month.

August
September
October
Max temperature
19°C (66°F)
17°C (63°F)
13°C (55°F)
Min temperature
12°C (54°F)
10°C (50°F)
7°C (45°F)
Monthly sun hours
181 hours
142 hours
97 hours
Monthly rainfall
131 mm (5.2 in)
119 mm (4.7 in)
147 mm (5.8 in)
Monthly rainy days
18 days
19 days
20 days
Weather conditions

Keswick

In September Keswick generally has moderate temperatures with maximum daytime temperatures around 17°C (63°F), minimum nighttime temperatures around 10°C (50°F) and high monthly rainfall. So on average the conditions are unpleasant that month.

August
September
October
Max temperature
19°C (66°F)
17°C (63°F)
13°C (55°F)
Min temperature
12°C (54°F)
10°C (50°F)
7°C (45°F)
Monthly rainfall
125 mm (4.9 in)
112 mm (4.4 in)
136 mm (5.4 in)
Monthly rainy days
18 days
19 days
21 days
Weather conditions

Bowness-on-Windermere

In September Bowness-on-Windermere generally has moderate temperatures with maximum daytime temperatures around 17°C (63°F), minimum nighttime temperatures around 10°C (50°F) and high monthly rainfall. So on average the conditions are unpleasant that month.

August
September
October
Max temperature
19°C (66°F)
17°C (63°F)
13°C (55°F)
Min temperature
12°C (54°F)
10°C (50°F)
7°C (45°F)
Monthly sun hours
181 hours
142 hours
97 hours
Monthly rainfall
132 mm (5.2 in)
121 mm (4.8 in)
149 mm (5.9 in)
Monthly rainy days
18 days
19 days
20 days
Weather conditions

Ambleside

In September Ambleside generally has moderate temperatures with maximum daytime temperatures around 17°C (63°F), minimum nighttime temperatures around 10°C (50°F) and high monthly rainfall. So on average the conditions are unpleasant that month.

August
September
October
Max temperature
18°C (64°F)
17°C (63°F)
13°C (55°F)
Min temperature
12°C (54°F)
10°C (50°F)
7°C (45°F)
Monthly sun hours
181 hours
142 hours
97 hours
Monthly rainfall
130 mm (5.1 in)
119 mm (4.7 in)
145 mm (5.7 in)
Monthly rainy days
18 days
19 days
20 days
Weather conditions

Penrith

In September Penrith generally has moderate temperatures with maximum daytime temperatures around 16°C (61°F), minimum nighttime temperatures around 9°C (48°F) and moderate monthly rainfall. So on average the conditions are tolerable that month.

August
September
October
Max temperature
19°C (66°F)
16°C (61°F)
13°C (55°F)
Min temperature
11°C (52°F)
9°C (48°F)
6°C (43°F)
Monthly rainfall
110 mm (4.3 in)
93 mm (3.7 in)
112 mm (4.4 in)
Monthly rainy days
17 days
18 days
19 days
Weather conditions

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

Popular cities in September

Day & night temperatures, rainfall and average weather in Cumbria in September.

City Weather Day temp Night temp Rainfall
Windermere 17°C (63°F) 10°C (50°F) 119 mm (4.7 in)
Keswick 17°C (63°F) 10°C (50°F) 112 mm (4.4 in)
Bowness-on-Windermere 17°C (63°F) 10°C (50°F) 121 mm (4.8 in)
Ambleside 17°C (63°F) 10°C (50°F) 119 mm (4.7 in)
Penrith 16°C (61°F) 9°C (48°F) 93 mm (3.7 in)
Kendal 17°C (63°F) 9°C (48°F) 111 mm (4.4 in)

Cumbria weather in September: frequently asked questions

What is the weather like in Cumbria, the United Kingdom in September?

In September, Cumbria, the United Kingdom generally has unpleasant weather conditions. Windermere sees daytime temperatures near 17°C (63°F), with nights cooling to roughly 10°C (50°F).

What is the average temperature in Cumbria, the United Kingdom in September?

Windermere averages a daytime maximum of 17°C (63°F) in September, with overnight lows close to 10°C (50°F).

Does Cumbria, the United Kingdom get a lot of rain in September?

Yes, September tends to be a wetter month in Cumbria, the United Kingdom. Average rainfall in Windermere sits around 119 mm (4.7 in).

Is September a Good Time to Visit Cumbria, the United Kingdom?

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

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.

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 travel conditions. Find out where to go with our weather planner.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.