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The Mumbles Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit The Mumbles.
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Climate overview of The Mumbles
The Mumbles, Glamorgan, United Kingdom, experiences moderate temperature changes through the seasons. August is the warmest month with daytime highs of 20°C (68°F), while February is the coolest at 9°C (48°F).
With around 1344 mm (53 in) of annual rainfall, The Mumbles has a notably wet climate. However, this rainfall is not evenly distributed, the city has pleasant summers and cold winters. The wettest month is December. The sunniest month is July, with 6.7 hours of sunshine per day on average.
The Mumbles Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in The Mumbles - and find the best time to visit.
Monthly Temperature in The Mumbles
In The Mumbles, seasonal changes bring about a moderate variation in temperatures. Average daytime temperatures reach a pleasant 20°C (68°F) in August. In February, the coolest month of the year, temperatures drop to a chilly 9°C (48°F).
At night, temperatures range from around 14°C (57°F) in August to 4°C (39°F) in February.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in The Mumbles
The Mumbles has a relatively rainy climate with high precipitation levels, averaging 1344 mm (53 in) of rainfall annually. The Mumbles experiences moderate seasonal variation in rainfall, with monthly averages ranging from 150 mm (5.9 in) in December, the wettest month, and 81 mm (3.2 in) in April, the driest month. For more details, please visit our The Mumbles Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in The Mumbles
The Mumbles can be enjoyed more throughout the sunniest month of July under a blue sky, with approximately 6.7 hours of sunshine daily. In contrast, the city experiences much darker days in December, with only 1.6 hours of sunlight per day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Data from: Cardiff, the United Kingdom (48 KM, 30 Miles).
Daily hours of sunshine
Data from: Cardiff, the United Kingdom (48 KM, 30 Miles).
Daily percentage of sunshine
Data from: Cardiff, the United Kingdom (48 KM, 30 Miles).
Humidity in The Mumbles by Month
The city experiences its highest humidity in January, reaching 89%. In June, the humidity drops to its lowest level at 73%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Data from: Cardiff, the United Kingdom (48 KM, 30 Miles).
Best Time to Visit The Mumbles
For comfortable weather, consider visiting The Mumbles in June, July and August. Conditions are usually least favourable in January, February, November and December.
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
Jan
wet
Feb
wet
Mar
mixed
Apr
mixed
May
good
Jun
very good
Jul
very good
Aug
very good
Sep
good
Oct
mixed
Nov
wet
Dec
wet
- Best overall: June, July and August
- Warmest weather: July, August and September
- Most sunshine: May, June and July
- Seasonal pattern: Pleasant summers and cold winters
Frequently asked questions about the climate in The Mumbles
What is the best time to visit The Mumbles?
June, July and August typically offer the most optimal weather in The Mumbles. In contrast, January, February, November and December tend to have less optimal conditions. The Mumbles has pleasant summers and cold winters.
What temperatures can I expect in The Mumbles?
Daytime highs range from 9°C (48°F) in February to 20°C (68°F) in August. Nighttime lows range from 4°C (39°F) to 14°C (57°F).
How much rain does The Mumbles get?
Annual rainfall is around 1344 mm (53 in). December is the wettest month with 150 mm (5.9 in), while April is the driest with 81 mm (3.2 in).
How sunny is The Mumbles?
The Mumbles receives around 1,573 hours of sunshine per year. July is the sunniest month with 202 hours, while December is the cloudiest with just 49 hours.
The Mumbles 3-Day Forecast
The Mumbles on the map
The Mumbles is highlighted - select any city to see its climate.
Popular in October
Where to go in October - average daytime high across popular destinations.
London
16°C (61°F) Bath15°C (59°F) Torquay16°C (61°F) Manchester14°C (57°F) York15°C (59°F) Blackpool
15°C (59°F) Edinburgh13°C (55°F) Glasgow14°C (57°F) Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
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