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.