Belmullet Weather in September

September in Belmullet brings moderate temperatures, with highs of 17°C (63°F) and nights dropping to 12°C (54°F). Rainfall is on the higher side this month, averaging around 110 mm (4.3 in), so keep a rain jacket handy.

Rainfall in Belmullet in September

Looking at the last 30 years, the data shows about 22 days with rain, averaging 110 mm (4.3 in) for the month. Rain falls regularly this month and can be quite heavy when it does. Showers can be substantial, so waterproof gear is a good idea.

Temperature in Belmullet in September

September in Belmullet brings typical temperatures with highs around 17°C (63°F) and lows of 12°C (54°F). Temperatures can feel cooler in the morning and evening, so layering is often the best approach. Nights drop to around 12°C (54°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 Belmullet in September

The area enjoys a balanced 118 hours of sunlight, ensuring it's neither too overcast nor too sunny.

Wind Speed in Belmullet in September

Average wind conditions reach 6 m/s (12 knots) in September. This creates notably windy weather that is clearly felt and can influence daily activities. Keep in mind this is an average. Some days are less intense, while others can be quite gusty.

Average water temperature in September

The water temperature is 14°C (57°F), chilly, but perfectly fine for a swim if you're not too sensitive to cold water. A short wetsuit can make longer sessions more comfortable.

For Belmullet itself, May, June, July and August generally stand out with 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.