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Saint Mawes Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Saint Mawes.
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Climate overview of Saint Mawes
Temperatures in Saint Mawes, Cornwall, United Kingdom, shift moderately through the seasons. The warmest month is July at 20°C (68°F), and the coolest is February at 11°C (52°F).
The city receives around 878 mm (35 in) of rainfall per year. December is the wettest month and September the driest. May is the sunniest month, averaging 7.4 hours of sunshine per day.
Saint Mawes Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Saint Mawes - and find the best time to visit.
Monthly Temperature in Saint Mawes
The climate in Saint Mawes experiences moderate temperature changes, with mild shifts between seasons. On average, daytime temperatures range from a pleasant 20°C (68°F) in July to a chilly 11°C (52°F) in February.
Nighttime temperatures range from 14°C (57°F) in July to 5°C (41°F) in February.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Saint Mawes
Generally, Saint Mawes receives mid-range precipitation levels, with 878 mm (35 in) annually. The wettest period in Saint Mawes occurs in December, which receives around 90 mm (3.5 in) of precipitation. During the driest month, September, Saint Mawes experiences moderate rainfall, totaling 60 mm (2.4 in). The consistent precipitation levels throughout the year contribute to a relatively stable climate. For more details, please visit our Saint Mawes 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 Saint Mawes
In Saint Mawes, summer days are longer and more sunny, with daily sunshine hours peaking at 7.4 hours in May. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 2.2 hours per average day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Data from: Newquay, the United Kingdom (28 KM, 17 Miles).
Daily hours of sunshine
Data from: Newquay, the United Kingdom (28 KM, 17 Miles).
Best Time to Visit Saint Mawes
The most comfortable overall weather for exploring Saint Mawes is usually found in July and August. Conditions are generally least comfortable in January, February, March, 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
mixed
Feb
mixed
Mar
mixed
Apr
good
May
good
Jun
very good
Jul
excellent
Aug
excellent
Sep
very good
Oct
good
Nov
mixed
Dec
mixed
- Best overall: July and August
- Warmest weather: July, August and September
- Most sunshine: May and June
- Fewer rainy days: April, May, June, July and August
Frequently asked questions about the climate in Saint Mawes
What is the best time to visit Saint Mawes?
July and August typically offer the most optimal weather in Saint Mawes. In contrast, January, February, March, November and December tend to have less optimal conditions.
What temperatures can I expect in Saint Mawes?
Daytime highs range from 11°C (52°F) in February to 20°C (68°F) in July. Nighttime lows range from 5°C (41°F) to 14°C (57°F).
How much rain does Saint Mawes get?
Annual rainfall is around 878 mm (35 in). December is the wettest month with 90 mm (3.5 in), while September is the driest with 60 mm (2.4 in).
How sunny is Saint Mawes?
Saint Mawes receives around 1,753 hours of sunshine per year. May is the sunniest month with 222 hours, while December is the cloudiest with just 65 hours.
Saint Mawes 3-Day Forecast
Saint Mawes on the map
Saint Mawes is highlighted - select any city to see its climate.
Popular in October
Where to go in October - average daytime high across popular destinations.
London
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15°C (59°F) Edinburgh13°C (55°F) Glasgow14°C (57°F) Bucket list
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