Greencastle Weather in August

Greencastle in August sees moderate daytime temperatures of 17°C (63°F) and nighttime lows of 13°C (55°F). Rainfall is fairly high this month at around 120 mm (4.7 in), so pack a rain jacket to stay dry.

Rainfall in Greencastle in August

Historically, August sees about 20 days of rain, with a monthly average of 120 mm (4.7 in). Expect frequent rainfall this month, and not just light drizzle. When it rains, it tends to come down hard.

Temperature in Greencastle in August

August in Greencastle sees highs of 17°C (63°F) and lows of 13°C (55°F) overnight. This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. Nights cool down to 13°C (55°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions. On average, it has the peak temperatures of the year.

Sunshine in Greencastle in August

You can expect a moderate amount of sunlight, with approximately 140 hours. This means a pleasant mix of sun and overcast.

If you're inclined towards comfortable temperatures and drier conditions, August is a good time to visit Greencastle.

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• January
• February
• March
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• May
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For a detailed overview over the year and the best time to visit Ireland, check out our Greencastle's climate page.

Greencastle Temperature in August

Min Temperature 13°C (55°F)  

Max Temperature 17°C (63°F)  

Chance of Rain 66%  

Precipitation 120 mm (4.7 in)  

Rainy days 20 days  

Sunshine 140 hours *  

Percentage Sunshine *  

* Data from: Derry, Ireland (31 KM, 19 Miles).

What to Wear in Greencastle in August

For Greencastle in August, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. Bring sunglasses since you'll have some sunny periods throughout the month

What To Do in Greencastle in August

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

Swimming

5/10

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 Greencastle's climate page.

More climate data for Greencastle

Temperature Rainfall Sunshine

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