Nefyn Weather in September

Thinking of visiting Nefyn in September? Expect moderate temperatures reaching 17°C (63°F) during the day, dropping to 13°C (55°F) at night, and note that quite a bit of rainfall is likely.

Rainfall in Nefyn in September

Expect around 16 days of rain based on historical data, with 144 mm (5.7 in) average. This is a wet month with frequent and often heavy showers. Both the number of rain days and the total rainfall are high.

Temperature in Nefyn in September

If you're visiting Nefyn in September, expect highs of 17°C (63°F) and overnight lows around 13°C (55°F). September is a notable month of the summer season. This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. Nights cool down to 13°C (55°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions.

Sunshine in Nefyn in September

The area enjoys a balanced 111 hours of sunlight, ensuring it's neither too overcast nor too sunny.

If you prefer enjoying temperate temperatures and rain-free days, May, June 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.

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

Nefyn Temperature in September

Min Temperature 13°C (55°F)  

Max Temperature 17°C (63°F)  

Chance of Rain 54%  

Precipitation 144 mm (5.7 in)  

Rainy days 16 days  

Sunshine 111 hours *  

Percentage Sunshine *  

* Data from: Bala, the United Kingdom (61 KM, 38 Miles).

What to Wear in Nefyn in September

For Nefyn 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 Nefyn in September

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

Swimming

6/10

Cycling

5/10

Walking

5/10

Camping

6/10

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 Nefyn's climate page.

More climate data for Nefyn

Temperature Rainfall Sunshine

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