St Mellion Weather in September

St Mellion in September averages 19°C (66°F) during the day and 11°C (52°F) at night. This is the driest month of the year, and part of the summer season.

Rainfall in St Mellion in September

As the driest month, it's a great time for hiking and exploring the area. Past climate data indicates that roughly 15 days will see rain, totalling around 70 mm (2.8 in) for the month. This is a month with many wet days but modest rainfall totals, so showers are generally light and easy to manage.

Temperature in St Mellion in September

September in St Mellion brings typical temperatures with highs around 19°C (66°F) and lows of 11°C (52°F). The summer season is characteristic of September. Conditions are often most pleasant around the middle of the day. Nights drop to around 11°C (52°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable.

Sunshine in St Mellion in September

The month experiences a moderate amount of sunlight, with 162 hours of sunshine. This provides a nice balance between sunshine and clouds.

Should you favor a climate that's both dry and comfortably warm, July and August typically offer the most agreeable circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.

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

St Mellion Temperature in September

Min Temperature 11°C (52°F)  

Max Temperature 19°C (66°F)  

Chance of Rain 51%  

Precipitation 70 mm (2.8 in)  

Rainy days 15 days  

Humidity 83% *  

Sunshine 162 hours *  

Percentage Sunshine *  

* Data from: Plymouth, the United Kingdom (14 KM, 8 Miles).

What to Wear in St Mellion in September

For St Mellion in September, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. Rain is likely on several days, so bring a good rain jacket. Sunglasses could come in handy during the sunnier parts of your trip.

What To Do in St Mellion 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 St Mellion's climate page.

More climate data for St Mellion

Temperature Rainfall Sunshine Humidity

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