Mullion Weather in September

In Mullion, September brings pleasant daytime temperatures around 18°C (64°F), with nights cooling to 14°C (57°F). Expect quite a bit of rainfall this month.

Rainfall in Mullion in September

Rain is expected on roughly 15 days, totalling around 64 mm (2.5 in) for the month. With rain spread across many days but low totals, showers are typically short and light rather than heavy.

Temperature in Mullion in September

Expect highs of 18°C (64°F) in Mullion in September, with nights dropping to around 14°C (57°F). Even when the weather is stable, mornings and evenings can still feel distinctly cool. At 14°C (57°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.

Sunshine in Mullion in September

The area enjoys a moderate level of sunlight, with around 165 hours. It's a good balance between sunny and cloudy days.

If your ideal day consists of dry skies and pleasant temperatures, August typically offers the best circumstances for Mullion.

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Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United Kingdom, check out our Mullion's climate page.

Mullion Temperature in September

Min Temperature 14°C (57°F)  

Max Temperature 18°C (64°F)  

Chance of Rain 51%  

Precipitation 64 mm (2.5 in)  

Rainy days 15 days  

Sunshine 165 hours *  

Percentage Sunshine *  

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

What to Wear in Mullion in September

Comfortable temperatures call for an easy wardrobe in September. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Wet weather is likely, so pack waterproof gear for multiple rainy days. Bring sunglasses since you'll have some sunny periods throughout the month

What To Do in Mullion in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

6/10

Cycling

10/10

Walking

10/10

Barbeque

7/10

Camping

8/10

Outdoor sports

10/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United Kingdom, check out our Mullion's climate page.

More climate data for Mullion

Temperature Rainfall Sunshine

See the full Mullion climate overview or explore weather in the United Kingdom.