St Clements Weather in September

St Clements in September sees pleasant daytime temperatures of 19°C (66°F) and nighttime lows of 16°C (61°F). Rainfall is fairly high this month at around 85 mm (3.3 in), so pack a rain jacket to stay dry.

Rainfall in St Clements in September

Looking at the last 30 years, the data shows about 13 days with rain, averaging 85 mm (3.3 in) for the month. 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 St Clements in September

Daytime highs in St Clements in September reach 19°C (66°F), with nights around 16°C (61°F). September is in the summer season. This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. Nights drop to around 16°C (61°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 Clements in September

The month experiences a moderate amount of sunlight, with 182 hours of sunshine. This provides a nice balance between sunshine and clouds.

For St Clements itself, August generally stands 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.

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

St Clements Temperature in September

Min Temperature 16°C (61°F)  

Max Temperature 19°C (66°F)  

Chance of Rain 44%  

Precipitation 85 mm (3.3 in)  

Rainy days 13 days  

Sunshine 182 hours *  

Percentage Sunshine 47% *  

* Data from: Guernsey, the United Kingdom (50 KM, 31 Miles).

What to Wear in St Clements in September

For St Clements 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. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.

What To Do in St Clements in September

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

Swimming

6/10

Cycling

9/10

Walking

9/10

Camping

8/10

Outdoor sports

9/10

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 Clements's climate page.

More climate data for St Clements

Temperature Rainfall Sunshine

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