Portstewart Weather in August

In Portstewart, August brings moderate daytime temperatures around 17°C (63°F), with nights cooling to 13°C (55°F). Expect quite a bit of rainfall this month.

Rainfall in Portstewart in August

Climate statistics over the past 30 years suggest around 20 days of rain, with 111 mm (4.4 in) average for the month. This is a wet month with frequent and often heavy showers. Both the number of rain days and the total rainfall are high.

Temperature in Portstewart in August

Expect highs of 17°C (63°F) in Portstewart in August, with nights dropping to around 13°C (55°F). This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. Nights drop to around 13°C (55°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable. On average, it has the peak temperatures of the year.

Sunshine in Portstewart in August

The area enjoys a balanced 140 hours of sunlight, ensuring it's neither too overcast nor too sunny.

Should you favor a climate that's both dry and comfortably warm, June typically offers the most agreeable 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 Portstewart's climate page.

Portstewart Temperature in August

Min Temperature 13°C (55°F)  

Max Temperature 17°C (63°F)  

Chance of Rain 65%  

Precipitation 111 mm (4.4 in)  

Rainy days 20 days  

Sunshine 140 hours *  

Percentage Sunshine *  

* Data from: Derry, Ireland (42 KM, 26 Miles).

What to Wear in Portstewart in August

For Portstewart 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. Sunglasses could come in handy during the sunnier parts of your trip.

What To Do in Portstewart 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 the United Kingdom, check out our Portstewart's climate page.

More climate data for Portstewart

Temperature Rainfall Sunshine

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