Belfast weather in August (Antrim County, United Kingdom)

How is the weather in Belfast in August? Wondering if it's an optimal time for a visit? This page provides detailed information on the weather conditions for that month.

In August, Belfast generally has pleasant temperatures and moderate rainfall. August falls within the summer season. Throughout the day, temperatures typically settle at around 19°C. But by evening, they drop to around 12°C. On average, it is the month with the highest temperature of the year.

Belfast in August usually receives moderate rainfall, averaging around 92 mm for the month. Rain is expected on roughly 17 days.

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

If you're inclined towards comfortable temperatures and drier conditions, August is a prime time to visit Belfast. July and August typically offer the best circumstances. While January, February, March and December tend to showcase less optimal conditions.

For an in-depth look at the yearly conditions, visit our specialized Belfast climate page with graphs.

 

Belfast, monthly averages in August

Min Temperature 12°C  

Max Temperature 19°C  

Water Temperature 13°C *  

Chance of Rain 58%  

Precipitation 92 mm  

Rainy days 17 days  

Humidity 89% *  

Windspeed 14 km/h *  

Sunshine 139 hours *  

Percentage Sunshine 29% *  

* Data from: Belfast, Ireland (19 KM, 12 Miles).

Where to go in the United Kingdom in August

Find out more about the weather in the United Kingdom in August and which places have the best weather conditions in this month.

Weather conditions Weather

Temperatures

Precipitation

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Legend perfect weather pleasant tolerable unpleasant poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

So, what should you wear in Belfast in August?

For visitors traveling to Belfast, we recommend wearing layers. So maybe a skirt, t-shirt, shorts for during the day and jeans and a warm jacket for some days and evenings. Bring a rain jacket in case it rains during your stay. Plan on layering your clothes. With a water temperature of around 13°C there is no need to bring your swimwear.

What To Do

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

Swimming

6/10

Cycling

9/10

Walking

9/10

Camping

8/10

Outdoor sports

9/10

Interested in more climate information?

Weather and Climate provides you with all the information you need about the climate in Belfast.

Our site offers climate and forecast data for every country in the world. Are you going to the United Kingdom? On this website you can find historical weather averages for many cities in the United Kingdom. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal climate conditions. Find out where to go with our weather planner.