Portstewart in august: average Weather, Temperature and Climate
Weather in Portstewart in august 2025
The weather in Portstewart in august comes from statistical datas on the past years. You can view the weather statistics for the whole month, but also by using the tabs for the beginning, the middle and the end of the month.
Average weather throughout august
tolerable weather
Weather at 6am
56°F
Partly Cloudy
31% of time
30%
19%
10%
Weather at 12pm
61°F
Moderate rain at times
43% of time
19%
16%
14%
Weather at 6pm
59°F
Moderate rain at times
47% of time
19%
14%
13%
Weather at 3am
56°F
29%
28%
18%
15%
Evolution of daily average temperature and precipitation in Portstewart in august
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in Portstewart in august.
The climate of Portstewart in august is tolerable
The climate in august in Portstewart is wet (with 5.9in of precipitation over 10 days). This is better than the previous month since in july it receives an average of 6in of precipitation over 11 days.
The climate is relatively cool in that locality august, but it is tolerable by dressing warm. Temperatures are up to 63°F. The seasonal minimum is 56°F. Thus, the mean temperature average on this month of august in Portstewart is 59°F. Note that these seasonal averages are in contrast with those observed in Portstewart in the month of august with a maximum record of 68°F in 2015 and a minimum record of 47°F in 2014. You can plan to have about 5 days with temperatures up to 65°F, or 16% of time.
On average, in Portstewart, the days of august last 14:59. The sun rises at 05:01 and sets at 20:00.
With a correct climate, august is okay (but not the best) to go in that area.
August: another location in Northern Ireland?
If you want to go to Northern Ireland in august, there are destinations with better weather than Portstewart:
In august, Donwpatrick, Annalong, Ballywalter, Bangor, Carrickfergus and Donaghadee have good weather.
Seasonal average climate and temperature of Portstewart in august
Check below seasonal norms These datas are generated from the weather statements of the last years of august.
| August | |||||
| Outside temperature | |||||
| Average temperature | 59°F | ||||
| Highest temperature | 63°F | ||||
| Lowest temperature | 56°F | ||||
| Highest record temperature | 68°F (2015) | ||||
| Lowest record temperature | 47°F (2014) | ||||
| Number of days at +65°F | 5 day(s) (16%) | ||||
| Sea temperature | |||||
| Average sea temperature | 58°F | ||||
| Lowest sea temperature | 56°F | ||||
| Highest sea temperature | 60°F | ||||
| Wind | |||||
| Wind speed | 23km/h | ||||
| Wind temperature | 52°F | ||||
| Precipitation (rainfall) | |||||
| Rainfall | 5.9in | ||||
| Number of days with rainfall | 10 day(s) (33%) | ||||
| Record daily rainfall | 1.8in (2009) | ||||
| Other climate data | |||||
| Humidity | 92% | ||||
| Visibility | 8.99km | ||||
| Cloud cover | 59% | ||||
| UV index | 4 | ||||
| Daily sunshine hours | 12 | ||||
| Sunrise and sunset | |||||
| Time of sunrise | 05:01 | ||||
| Time of sunset | 20:00 | ||||
| Length of day | 14:59 | ||||
| Our opinion about the weather in august | |||||
| Our opinion at whereandwhen.net | tolerable | ||||
How was the weather last august?
Here is the day by day recorded weather in Portstewart in august 2024:
58°F to 61°F
59°F to 61°F
54°F to 59°F
56°F to 61°F
58°F to 61°F
54°F to 59°F
58°F to 59°F
54°F to 61°F
58°F to 61°F
58°F to 59°F
54°F to 61°F
58°F to 61°F
59°F to 61°F
54°F to 63°F
54°F to 59°F
54°F to 59°F
56°F to 59°F
56°F to 59°F
54°F to 59°F
54°F to 58°F
54°F to 59°F
56°F to 59°F
56°F to 58°F
54°F to 56°F
52°F to 58°F
56°F to 61°F
59°F to 63°F
56°F to 59°F
56°F to 58°F
56°F to 58°F
54°F to 61°F
Map: other cities in Northern Ireland in august
Cities near Portstewart:
| Portrush in august | tolerable weather |
| Castlerock in august | tolerable weather |
| Coleraine in august | tolerable weather |
| Ballymoney in august | tolerable weather |
| Limavady in august | bad weather |
| Ballycastle (Causeway Coast) in august | tolerable weather |
| Maghera in august | tolerable weather |
| Derry (Londonderry) in august | bad weather |
| Glenariff in august | tolerable weather |
| Ballymena in august | tolerable weather |
| Magherafelt in august | tolerable weather |
| Cookstown in august | bad weather |
Click over cities on the map for information about the weather in august.
Portstewart
perfect weather
good
tolerable
bad
very bad
Weather data for Portstewart in august:
Weather data for Portstewart for august are derived from an average of the weather forecast since 2009 in Portstewart. There is a margin of error and these forecasts are to be considered as general information only. The weather in Portstewart can vary slightly from year to year, but this data should limit surprises. So you can pack your bags or check for the best time in year to go to Portstewart.