Antrim Weather in August

August in Antrim brings pleasant temperatures, with highs of 19°C (66°F) and nights dropping to 12°C (54°F). It's the rainiest month of the year, so come prepared with waterproof gear.

Rainfall in Antrim in August

An umbrella might come in handy since it is the wettest month of the year. You can expect rain on roughly 19 days based on historical data, averaging 92 mm (3.6 in) for the month. Rain is frequent but mostly light this month, with brief showers more common than heavy downpours.

Temperature in Antrim in August

If you're visiting Antrim in August, expect highs of 19°C (66°F) and overnight lows around 12°C (54°F). This month falls in the summer season. Temperatures can feel cooler in the morning and evening, so layering is often the best approach. At 12°C (54°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.

Sunshine in Antrim in August

The area enjoys a moderate level of sunlight, with around 139 hours. It's a good balance between sunny and cloudy days.

Wind Speed in Antrim in August

August sees wind speeds averaging 4 m/s (8 knots). You'll experience variable conditions with moderate winds that create small waves on water and keep branches moving. Conditions range from light winds to moderate breezes throughout the month.

Average water temperature in August

With water at 13°C (55°F), it's on the cooler side. Keen swimmers won't be put off, but those who prefer warm water may find it less enjoyable.

If you're a fan of comfortable temperatures and drier conditions, August is a great time to visit.

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

Antrim Temperature in August

Min Temperature 12°C (54°F)  

Max Temperature 19°C (66°F)  

Water Temperature 13°C (55°F) *  

Chance of Rain 64%  

Precipitation 92 mm (3.6 in)  

Rainy days 19 days  

Humidity 89% *  

Windspeed 4 m/s (8 knots) *  

Sunshine 139 hours *  

Percentage Sunshine 29% *  

* Data from: Belfast, Ireland (6 KM, 4 Miles).

What to Wear in Antrim in August

For Antrim 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. The water temperature sits at about 13°C (55°F), which is too chilly for most people to enjoy swimming. Leave the swimsuit at home unless you love cold water. Sunglasses could come in handy during the sunnier parts of your trip.

What To Do in Antrim in August

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

Swimming

6/10

Cycling

9/10

Walking

9/10

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 the United Kingdom, check out our Antrim's climate page.

More climate data for Antrim

Temperature Rainfall Sunshine Humidity Wind Speed Water Temp

See the full Antrim climate overview or explore weather in the United Kingdom.