Clondalkin Weather in September

September in Clondalkin brings moderate temperatures, with daytime highs of 18°C (64°F) and nights around 10°C (50°F). Quite a bit of rainfall is expected, around 74 mm (2.9 in), so pack an umbrella.

Rainfall in Clondalkin in September

This month experiences about 16 days of rain according to historical data, averaging 74 mm (2.9 in). Expect plenty of grey, overcast days rather than intense storms. The rain rarely amounts to much on any given day.

Temperature in Clondalkin in September

September in Clondalkin brings typical temperatures with highs around 18°C (64°F) and lows of 10°C (50°F). Even when the weather is stable, mornings and evenings can still feel distinctly cool. With lows of 10°C (50°F), nights are cool. If you're out after dark, an extra layer will keep you comfortable. The cooler air at night is also great for getting a good rest.

Sunshine in Clondalkin in September

The area enjoys a moderate level of sunlight, with around 128 hours. It's a good balance between sunny and cloudy days.

Wind Speed in Clondalkin in September

In September, average wind speeds reach 4 m/s (8 knots), leading to light to moderate breezes. Conditions vary from day to day, with both calm and windier periods.

Average water temperature in September

The water temperature is 15°C (59°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 Clondalkin itself, 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.

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

Clondalkin Temperature in September

Min Temperature 10°C (50°F)  

Max Temperature 18°C (64°F)  

Water Temperature 15°C (59°F) *  

Chance of Rain 52%  

Precipitation 74 mm (2.9 in)  

Rainy days 16 days  

Humidity 71% *  

Windspeed 4 m/s (8 knots) *  

Sunshine 128 hours *  

Percentage Sunshine 33% *  

* Data from: Dublin, Ireland (15 KM, 9 Miles).

What to Wear in Clondalkin in September

Comfortable temperatures call for an easy wardrobe in September. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Wet weather is likely, so pack waterproof gear for multiple rainy days. Expect water temperatures of around 15°C (59°F), which is definitely too cold for comfortable swimming. Your luggage space is better used for other items. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.

What To Do in Clondalkin in September

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

Swimming

6/10

Cycling

6/10

Walking

6/10

Camping

8/10

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 Clondalkin's climate page.

More climate data for Clondalkin

Temperature Rainfall Sunshine Humidity Wind Speed Water Temp

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