Randalstown Weather in August

August in Randalstown brings pleasant temperatures around 19°C (66°F) during the day, dropping to 12°C (54°F) at night, with the most rainfall of the year.

Rainfall in Randalstown in August

This is the wettest month of the year, so having an umbrella ready is a smart choice. Past climate data indicates that roughly 19 days will see rain, totalling around 94 mm (3.7 in) for the month. With rain spread across many days but low totals, showers are typically short and light rather than heavy.

Temperature in Randalstown in August

August in Randalstown brings typical temperatures with highs around 19°C (66°F) and lows of 12°C (54°F). August is part of the summer season. This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. With lows of 12°C (54°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 Randalstown in August

The area enjoys a balanced 139 hours of sunlight, ensuring it's neither too overcast nor too sunny.

Wind Speed in Randalstown 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

At 13°C (55°F), the water is cool but manageable for those who don't mind a bit of a shock getting in. Most people adjust after a few minutes.

For Randalstown itself, July generally stands 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 the United Kingdom, check out our Randalstown's climate page.

Randalstown Temperature in August

Min Temperature 12°C (54°F)  

Max Temperature 19°C (66°F)  

Water Temperature 13°C (55°F) *  

Chance of Rain 65%  

Precipitation 94 mm (3.7 in)  

Rainy days 19 days  

Humidity 89% *  

Windspeed 4 m/s (8 knots) *  

Sunshine 139 hours *  

Percentage Sunshine 29% *  

* Data from: Belfast, Ireland (12 KM, 8 Miles).

What to Wear in Randalstown in August

Pleasant temperatures in August 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. 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. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.

What To Do in Randalstown 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 Randalstown's climate page.

More climate data for Randalstown

Temperature Rainfall Sunshine Humidity Wind Speed Water Temp

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