Dolgellau Weather in September

In Dolgellau, September brings moderate daytime temperatures around 17°C (63°F), with nights cooling to 10°C (50°F). Expect quite a bit of rainfall this month.

Rainfall in Dolgellau in September

Past climate data indicates that roughly 17 days will see rain, totalling around 103 mm (4.1 in) for the month. 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 Dolgellau in September

In September, expect moderate temperatures in Dolgellau, with highs of 17°C (63°F) and lows of 10°C (50°F) at night. This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. With overnight lows of 10°C (50°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.

Sunshine in Dolgellau in September

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

Should you favor a climate that's both dry and comfortably warm, June and July typically offer the most agreeable circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.