Week Saint Mary Weather & Climate: Best Time to Visit

Average temperatures, rainfall, sunshine and the best time to visit Week Saint Mary.

Climate overview of Week Saint Mary

The climate in Week Saint Mary, Cornwall, United Kingdom, sees a moderate range of temperatures across the year, from 20°C (68°F) in July down to 10°C (50°F) in February.

The city has a wet climate, receiving around 1076 mm (42 in) of rainfall per year. December is the wettest month. The sunniest month is May, with 7.4 hours of sunshine per day on average.

Week Saint Mary Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Week Saint Mary — and find the best time to visit.

Monthly Temperature in Week Saint Mary

The climate in Week Saint Mary 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 10°C (50°F) in February.

Nighttime temperatures range from 13°C (55°F) in July to 4°C (39°F) in February.

Check out our detailed temperature page for more information.

Temperature ranges by month

Rainfall in Week Saint Mary

Week Saint Mary experiences significant rainfall throughout the year, averaging 1076 mm (42 in) of precipitation annually. The wettest period in Week Saint Mary occurs in December, which receives around 114 mm (4.5 in) of precipitation. During the driest month, March, Week Saint Mary experiences moderate rainfall, totaling 76 mm (3 in). The consistent precipitation levels throughout the year contribute to a relatively stable climate. For more details, please visit our Week Saint Mary Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

Sunshine Hours in Week Saint Mary

In Week Saint Mary, 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 1.8 hours per average day.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Data from: Plymouth, the United Kingdom (49 KM, 30 Miles).

Daily hours of sunshine

Data from: Plymouth, the United Kingdom (49 KM, 30 Miles).

Humidity in Week Saint Mary by Month

Best Time to Visit Week Saint Mary

The best time to visit Week Saint Mary is during June, July, August and September, when the weather provides comfortable temperatures between 18°C (65°F) and 20°C (68°F). With rainfall of 76 mm (3 in) to 87 mm (3.4 in), you can expect pleasant weather during your visit in these months.

Need help choosing your next travel destination? We offer a specialized tool that matches you with locations based on your weather preferences. Explore destinations that suit your climate preferences.

Frequently asked questions about the climate in Week Saint Mary

What is the best time to visit Week Saint Mary?

July and August typically offer the most optimal weather in Week Saint Mary. In contrast, January, February, November and December tend to have less optimal conditions.

What temperatures can I expect in Week Saint Mary?

Daytime highs range from 10°C (50°F) in February to 20°C (68°F) in July. Nighttime lows range from 4°C (39°F) to 13°C (55°F).

How much rain does Week Saint Mary get?

Annual rainfall is around 1076 mm (42 in). December is the wettest month with 114 mm (4.5 in), while March is the driest with 76 mm (3 in).

How sunny is Week Saint Mary?

Week Saint Mary receives around 1,729 hours of sunshine per year. May is the sunniest month with 222 hours, while December is the cloudiest with just 55 hours.

Week Saint Mary 3-Day Forecast

Week Saint Mary 3-Day Forecast

Week Saint Mary on the map

Week Saint Mary is highlighted — select any city to see its climate.

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