Charlestown Weather in September

September in Charlestown brings pleasant temperatures around 19°C (66°F) during the day, dropping to 12°C (54°F) at night, with the driest conditions of the year.

Rainfall in Charlestown in September

September is the month with the least rainfall. Whether you're keen on hiking, outdoor festivals, or just enjoying a walk, this month provides a reliably dry backdrop for all your plans. Typically, you can expect about 15 days of rain this month, with 69 mm (2.7 in) on average. Neither particularly heavy nor particularly frequent, the rain this month is about average. A light jacket should be enough on most wet days.

Temperature in Charlestown in September

Temperatures in Charlestown in September top out at 19°C (66°F) and drop to 12°C (54°F) overnight. During September, the summer season is in full swing. A light jacket or extra layer can be useful, especially outside the warmest hours of the day. Nights drop to around 12°C (54°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 Charlestown in September

The month brings about 165 hours of sunlight, offering a comfortable mix of sun and overcast.

For Charlestown itself, July and August generally stand out with the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.

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 Charlestown's climate page.

Charlestown Temperature in September

Min Temperature 12°C (54°F)  

Max Temperature 19°C (66°F)  

Chance of Rain 50%  

Precipitation 69 mm (2.7 in)  

Rainy days 15 days  

Sunshine 165 hours *  

Percentage Sunshine *  

* Data from: Newquay, the United Kingdom (24 KM, 15 Miles).

What to Wear in Charlestown in September

For Charlestown 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. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.

What To Do in Charlestown 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 Charlestown's climate page.

More climate data for Charlestown

Temperature Rainfall Sunshine

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