Glengarriff Weather in September

September in Glengarriff brings moderate temperatures, with highs of 18°C (64°F) and nights dropping to 10°C (50°F). Rainfall is on the higher side this month, averaging around 100 mm (3.9 in), so keep a rain jacket handy.

Rainfall in Glengarriff in September

Historically, the month has about 19 days of rain, averaging 100 mm (3.9 in) in total. This month brings frequent, heavy showers. Both the number of wet days and the rainfall totals are on the high side.

Temperature in Glengarriff in September

Daytime highs in Glengarriff in September reach 18°C (64°F), with nights around 10°C (50°F). Even when the weather is stable, mornings and evenings can still feel distinctly cool. Nights drop to around 10°C (50°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 Glengarriff in September

The month experiences a moderate amount of sunlight, with 118 hours of sunshine. This provides a nice balance between sunshine and clouds.

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