Normal weather for Portstewart in August
It's cool to moderate in August in Portstewart with an average temperature of 18°C. Temperatures this month range from a low of 17°C to a high of 19°C. At night, you can expect temperatures between 11°C and 14°C.
In August, there is an average of 91 mm of precipitation, spread over 11 days. The wind speed is around 4 Bft, mostly coming from the Southwest.
Want nice weather? Then August is a great time to be in Portstewart. You’ll have pleasant temperatures and not too much rain this month.
Portstewart in August |
London | ||
|---|---|---|---|
 Average Temperature |
18°C | 22°C | |
 High Temp |
19°C | 24°C | |
| Low Temp |
17°C | 19°C | |
 Total Precipitation |
91 mm | 60 mm | |
| Rainy Days |
11 days | 10 days | |
The UV index is a maximum of 6 this month. That's a moderate to high value on the intensity scale of 1 to 11. Unprotected skin can burn within 15-25 minutes.
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Start of August
The month of August starts in Portstewart with mild temperatures, averaging around 18°C during the day and nights close to 13°C. A few showers might pop up in the first days of the month, but the weather remains mostly sunny and dry.
Mid-August
By mid-August, the average daytime temperature stays the same at 18°C, with nights close to 13°C. There might be a few showers during this period, but plenty of dry days with sunshine too.
End of August
By the end of August, the average daytime temperature in Portstewart will be around 18°C, with nights close to 12°C. A shower might show up, but overall the weather will be dry and sunny.
Temperature records
With 23°C, Portstewart hit the highest temperature in the last 10 years in August 2016. The lowest daytime temperature in this month was 12°C in 2014. The extreme night temperatures ranged from a low of 6°C to a high of 16°C.
Check out the climate of Portstewart for all months and discover the best travel time
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Daily Temperature in August in Portstewart
This chart shows the average daily high temperatures in August in Portstewart, measured in degrees Celsius. The bottom of the chart shows the days of August. Based on historical data, it shows the average daily temperatures for this month.
Daily Precipitation in August in Portstewart
The chart below shows the average daily precipitation in August for Portstewart, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are shown at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that rain is more likely. But it’s still an average, so each day can be different. Based on historical weather data for August, you can expect around 11 days of rain in Portstewart.
Daily UV Index in August in Portstewart
This chart shows the average daily UV index in August in Portstewart, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in August in Portstewart Over the Years
This chart shows the average temperature in August in Portstewart, measured in degrees Celsius, over the past years.
Total Precipitation in August in Portstewart Over the Years
This chart shows the average precipitation in August in Portstewart, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.
Daily climate in August for Portstewart
Click on a specific day in August for detailed info on the typical weather on that day in Portstewart. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in August in Portstewart
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Average Weather in Portstewart by Month
Click on a month below to see detailed weather info for Portstewart. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
Or check out the climate of Portstewart for all months at once
