Mullion Weather & Climate: Best Time to Visit

Average temperatures, rainfall, sunshine and the best time to visit Mullion.

Climate overview of Mullion

The climate in Mullion, Cornwall, United Kingdom, sees a moderate range of temperatures across the year, from 20°C (68°F) in August down to 11°C (52°F) in February.

With around 935 mm (37 in) of annual rainfall, the city has moderate precipitation levels. November is the wettest month and May the driest. The most sunshine falls in May, with an average of 7.4 hours of daily sunshine.

Mullion Weather by Month

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

Monthly Temperature in Mullion

The climate in Mullion experiences moderate temperature changes, with mild shifts between seasons. Typically, average maximum daytime temperatures range from a pleasant 20°C (68°F) in August to a chilly 11°C (52°F) in the coolest month, February.

Nights vary from 15°C (59°F) in August to around 7°C (45°F) during the colder months.

Check out our detailed temperature page for more information.

Temperature ranges by month

Rainfall in Mullion

On average, Mullion receives a reasonable amount of rainfall, with an annual precipitation of 935 mm (37 in). Mullion offers a pleasant mix of wetter and slightly drier months. The difference in precipitation between the wettest month November (103 mm (4.1 in)) and the driest month May (61 mm (2.4 in)) is not too significant. For more details, please visit our Mullion Precipitation page.

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

Sunshine Hours in Mullion

For those who appreciate different seasons, Mullion serves as an ideal destination. Expect longer, more sun-filled days in May with an average of 7.4 hours of sunshine daily, and embrace the darker days in December, offering only 2.2 hours of daily sunlight.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Data from: Newquay, the United Kingdom (44 KM, 27 Miles).

Daily hours of sunshine

Data from: Newquay, the United Kingdom (44 KM, 27 Miles).

Best Time to Visit Mullion

The best time to visit Mullion is during July, August and September, when the weather provides comfortable temperatures between 18°C (65°F) and 20°C (67°F). With rainfall of 62 mm (2.4 in) to 70 mm (2.8 in), you can expect pleasant weather during your visit in these months.

Ready to plan your travels but need destination ideas? Our smart tool recommends places based on the climate conditions you prefer. Start planning with our destination weather tool.

Frequently asked questions about the climate in Mullion

What is the best time to visit Mullion?

August typically offers the most optimal weather in Mullion. In contrast, November and December tend to have less optimal conditions.

What temperatures can I expect in Mullion?

Daytime highs range from 11°C (52°F) in February to 20°C (68°F) in August. Nighttime lows range from 7°C (45°F) to 15°C (59°F).

How much rain does Mullion get?

Annual rainfall is around 935 mm (37 in). November is the wettest month with 103 mm (4.1 in), while May is the driest with 61 mm (2.4 in).

How sunny is Mullion?

Mullion 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.

Mullion 3-Day Forecast

Mullion 3-Day Forecast

Mullion on the map

Mullion is highlighted — select any city to see its climate.

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