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.

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For a detailed overview over the year and the best time to visit Ireland, check out our Glengarriff's climate page.

Glengarriff Temperature in September

Min Temperature 10°C (50°F)  

Max Temperature 18°C (64°F)  

Chance of Rain 64%  

Precipitation 100 mm (3.9 in)  

Rainy days 19 days  

Humidity 77% *  

Sunshine 118 hours *  

Percentage Sunshine 30% *  

* Data from: Valentia, Ireland (52 KM, 32 Miles).

What to Wear in Glengarriff in September

Pleasant temperatures in September mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Prepare for significant rainfall with proper waterproof clothing and shoes. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.

What To Do in Glengarriff in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

6/10

Cycling

5/10

Walking

5/10

Camping

6/10

Outdoor sports

9/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Ireland, check out our Glengarriff's climate page.

More climate data for Glengarriff

Temperature Rainfall Sunshine Humidity

See the full Glengarriff climate overview or explore weather in Ireland.