Trefonen Weather in September

In Trefonen, September brings moderate daytime temperatures around 18°C (64°F), with nights cooling to 10°C (50°F). Expect quite a bit of rainfall this month.

Rainfall in Trefonen in September

Expect around 15 days of rain based on historical data, with 67 mm (2.6 in) average. Rain falls on many days this month, but usually in relatively small amounts. A light waterproof is more useful than a heavy umbrella.

Temperature in Trefonen in September

Daytime highs in Trefonen in September reach 18°C (64°F), with nights around 10°C (50°F). The difference between afternoon and evening temperatures is usually noticeable. Nights drop to 10°C (50°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet.

Sunshine in Trefonen in September

The area enjoys a moderate level of sunlight, with around 111 hours. It's a good balance between sunny and cloudy days.

If you prefer enjoying temperate temperatures and rain-free days, July and August typically offer 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 Trefonen's climate page.

Trefonen Temperature in September

Min Temperature 10°C (50°F)  

Max Temperature 18°C (64°F)  

Chance of Rain 51%  

Precipitation 67 mm (2.6 in)  

Rainy days 15 days  

Sunshine 111 hours *  

Percentage Sunshine *  

* Data from: Bala, the United Kingdom (34 KM, 21 Miles).

What to Wear in Trefonen in September

Pleasant temperatures in September mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Rain gear is recommended, you can expect wet weather on multiple days. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.

What To Do in Trefonen in September

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

Swimming

6/10

Cycling

6/10

Walking

6/10

Camping

4/10

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 Trefonen's climate page.

More climate data for Trefonen

Temperature Rainfall Sunshine

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