Portstewart weather live forecast

Today's maximum temperature in Portstewart is expected to be 8°C. Select a day from the live weather forecast for Portstewart, Northern Ireland, UK for more weather parameters.

Saturday
17th Jan
8

4

4

0
Sunday
18th Jan
7

4

3

0
Monday
19th Jan
7

4

0

0
Tuesday
20th Jan
6

3

3

0
Wednesday
21st Jan
8

5

2

0

5-day weather forecast updated at 04:08 on Saturday 17th January 2026 GMT

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The 5-day weather forecast for Northern Ireland (Portstewart) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Portstewart weather forecast by day

Below are the detailed weather forecasts for Portstewart for the next 5 days.

Portstewart weather for Saturday 17th January 2026

Expect sunshine and showers in Portstewart, Northern Ireland with a maximum temperature of 8°C and 4 hours of bright sunshine. There are 5-10 mm of rainfall expected with 18% chance of some rain and a gentle breeze of 13 kph from the south-east.

8
°C maximum temperature
4
°C minimum temperature
sunshine and showers
4
hours of sunshine
0
UV index (None)
18
% chance of some rain
<10
mm of rainfall expected
6
°C wind chill
13
kph wind from SE

Portstewart weather for Sunday 18th January 2026

Expect mostly cloudy with light rain in Portstewart, Northern Ireland with a maximum temperature of 7°C and 3 hours of bright sunshine. There are 0-2 mm of rainfall expected with 8% chance of some rain and a moderate breeze of 22 kph from the south.

7
°C maximum temperature
4
°C minimum temperature
mostly cloudy with light rain
3
hours of sunshine
0
UV index (None)
8
% chance of some rain
<2
mm of rainfall expected
4
°C wind chill
22
kph wind from S

Portstewart weather for Monday 19th January 2026

Expect mostly cloudy with light rain in Portstewart, Northern Ireland with a maximum temperature of 7°C and no hours of bright sunshine. There are 0-2 mm of rainfall expected with 44% chance of some rain and a moderate breeze of 21 kph from the south.

7
°C maximum temperature
4
°C minimum temperature
mostly cloudy with light rain
0
hours of sunshine
0
UV index (None)
44
% chance of some rain
<2
mm of rainfall expected
3
°C wind chill
21
kph wind from S

Portstewart weather for Tuesday 20th January 2026

Expect mostly cloudy with light rain in Portstewart, Northern Ireland with a maximum temperature of 6°C and 3 hours of bright sunshine. There are 0-2 mm of rainfall expected with 36% chance of some rain and a fresh breeze of 30 kph from the south-east.

6
°C maximum temperature
3
°C minimum temperature
mostly cloudy with light rain
3
hours of sunshine
0
UV index (None)
36
% chance of some rain
<2
mm of rainfall expected
1
°C wind chill
30
kph wind from SE

Portstewart weather for Wednesday 21st January 2026

Expect mostly cloudy with light rain in Portstewart, Northern Ireland with a maximum temperature of 8°C and 2 hours of bright sunshine. There are 0-2 mm of rainfall expected with 66% chance of some rain and a fresh breeze of 32 kph from the south-east.