Colwyn Bay Weather in September

With daytime temperatures of 18°C (64°F) and nighttime lows of 11°C (52°F), September in Colwyn Bay brings moderate temperatures during the day. Do keep in mind that quite a bit of rainfall is typical. Around 85 mm (3.3 in) falls on average.

Rainfall in Colwyn Bay in September

You can expect rain on roughly 17 days based on historical data, 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 Colwyn Bay in September

In September, expect moderate temperatures in Colwyn Bay, with highs of 18°C (64°F) and lows of 11°C (52°F) at night. The difference between afternoon and evening temperatures is usually noticeable. Nights drop to around 11°C (52°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 Colwyn Bay in September

With about 111 hours of sunshine, the area enjoys a nice balance of sun and overcast, creating a pleasant environment.

If your ideal day consists of dry skies and pleasant temperatures, July and August typically offer the best circumstances for Colwyn Bay.