Weather forecast for 10 days
Portstewart, United Kingdom

Weather forecast for the weekend

Saturday, 10. May

Mostly Sunny
5:24 am

9:22 pm
BST
Mostly Sunny
19°C / 8°C
  • Wind: 19km/h S
  • Humidity: 62%
  • Precip. probability: 10%
  • Precipitation: 0mm
  • UV index: 5
On Saturday, in Portstewart, sunny intervals will be long-lasting, with few disruptions.
Temperatures are expected to peak at a breezy 19°C and drop to a minimum of a brisk 8°C.
Tomorrow, the expected high temperature of 19°C better resembles June's average maximum than May's usual.
Sunrise will be at 5:24 am and sunset at 9:22 pm; tomorrow's daylight will last for 15h and 58min.

Sunday, 11. May

PM Showers
5:22 am

9:24 pm
BST
PM Showers
16°C / 9°C
  • Wind: 19km/h S
  • Humidity: 69%
  • Precip. probability: 42%
  • Precipitation: 9mm
  • UV index: 3
On Sunday, in Portstewart, a chance of afternoon showers exists, so it may be a good idea to keep an umbrella handy.
The likelihood of rainfall is low, and light precipitation is expected. The temperature is predicted to oscillate between a maximum of a comfortable 16°C and a minimum of a brisk 9°C.
On Sunday, the forecast high deviates from May's norm and tracks June's average temperature of 14.9°C.
Sunrise will be at 5:22 am and sunset at 9:24 pm; the daylight will last for 16h and 2min.

Frequently asked questions

What is the weather forecast for Portstewart for Sunday?
On Sunday, on-and-off showers may develop in the afternoon.
Will it rain on Sunday?
Light precipitation of 9mm is forecasted on Sunday. The possibility of rainfall is 42%.
What will be the highest temperature on Sunday?
On Sunday, the highest temperature will be 16°C, while the lowest temperature will be 9°C.
What is the weather forecast for Portstewart for the next ten days?
In Portstewart, a combination of bright, cloudy and rainy weather is anticipated for the next ten days.
Will it rain in the next ten days?
Rainfall is forecasted for Sunday and Monday in Portstewart. With light precipitation of 9mm, Sunday will be the day with the most rainfall.
How warm will it be in the next ten days?
The maximum temperature will vary between 16°C and 19°C, while the minimum temperature will vary between 8°C and 11°C.
What will be the warmest and the coldest days?
With a maximum temperature of 19°C, Saturday, next Saturday and Sunday will be the warmest days. With a maximum temperature of 16°C, Sunday through Tuesday will be the coldest days.

Long-term weather forecast

Fri09.May
  • min.
  • 8°C
Partly Cloudy
Partly Cloudy
  • Wind: 19km/h SSE
  • Humidity: 71%
  • UV index: 0
  • Precip. probability: 6%
  • Precipitation: 0mm
  • 5:26 am 9:20 pm BST
Sat10.May
  • 19°C
  • 8°C
Mostly Sunny
Mostly Sunny
  • Wind: 19km/h S
  • Humidity: 62%
  • UV index: 5
  • Precip. probability: 10%
  • Precipitation: 0mm
  • 5:24 am 9:22 pm BST
Sun11.May
  • 16°C
  • 9°C
PM Showers
PM Showers
  • Wind: 19km/h S
  • Humidity: 69%
  • UV index: 3
  • Precip. probability: 42%
  • Precipitation: 9mm
  • 5:22 am 9:24 pm BST
Mon12.May
  • 16°C
  • 9°C
AM Showers
AM Showers
  • Wind: 21km/h NNE
  • Humidity: 77%
  • UV index: 5
  • Precip. probability: 49%
  • Precipitation: 1mm
  • 5:20 am 9:25 pm BST
Tue13.May
  • 16°C
  • 9°C
Sunny
Sunny
  • Wind: 19km/h ENE
  • Humidity: 70%
  • UV index: 5
  • Precip. probability: 5%
  • Precipitation: 0mm
  • 5:18 am 9:27 pm BST
Wed14.May
  • 17°C
  • 9°C
Sunny
Sunny
  • Wind: 18km/h E
  • Humidity: 65%
  • UV index: 5
  • Precip. probability: 5%
  • Precipitation: 0mm
  • 5:16 am 9:29 pm BST
Thu15.May
  • 18°C
  • 9°C
Partly Cloudy
Partly Cloudy
  • Wind: 14km/h E
  • Humidity: 65%
  • UV index: 5
  • Precip. probability: 5%
  • Precipitation: 0mm
  • 5:15 am 9:31 pm BST
Fri16.May
  • 18°C
  • 9°C
Partly Cloudy
Partly Cloudy
  • Wind: 14km/h E
  • Humidity: 68%
  • UV index: 5
  • Precip. probability: 6%
  • Precipitation: 0mm
  • 5:13 am 9:33 pm BST
Sat17.May
  • 19°C
  • 10°C
Mostly Sunny
Mostly Sunny
  • Wind: 15km/h ESE
  • Humidity: 67%
  • UV index: 5
  • Precip. probability: 5%
  • Precipitation: 0mm
  • 5:11 am 9:34 pm BST
Sun18.May
  • 19°C
  • 11°C
Mostly Sunny
Mostly Sunny
  • Wind: 15km/h ESE
  • Humidity: 67%
  • UV index: 5
  • Precip. probability: 9%
  • Precipitation: 0mm
  • 5:09 am 9:36 pm BST
Models point to a combination of dry and sunny, dull and showery weather is predicted.
Rainfall is expected on Sunday and Monday.
The high temperatures are expected to remain largely stable during the next few days. The maximum temperature will vary between 16°C and 19°C, while changes in the overnight low will be also barely noticeable, as the minimum temperature will fluctuate between 8°C and 11°C.
Saturday, next Saturday and Sunday, with the highest temperature of 19°C, will be the warmest days in Portstewart; the coldest days will be Sunday through Tuesday, with a maximum of 16°C.
Updated: May 9, 2025 @ 15:35:59 UTC
Published by: Weather Atlas | About Us
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