Portstewart weather live forecast

Today's maximum temperature in Portstewart is expected to be 9°C. Select a day from the live weather forecast for Portstewart, Northern Ireland, UK for more weather parameters.

Wednesday
21st Jan
9

5

2

0
Thursday
22nd Jan
10

6

0

0
Friday
23rd Jan
8

5

3

0
Saturday
24th Jan
7

4

2

0
Sunday
25th Jan
6

2

3

0

5-day weather forecast updated at 04:05 on Wednesday 21st 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 Wednesday 21st January 2026

Expect mostly cloudy with light rain in Portstewart, Northern Ireland with a maximum temperature of 9°C and 2 hours of bright sunshine. There are 2-5 mm of rainfall expected with 86% chance of some rain and a fresh breeze of 37 kph from the south-east.

9
°C maximum temperature
5
°C minimum temperature
mostly cloudy with light rain
2
hours of sunshine
0
UV index (None)
86
% chance of some rain
<5
mm of rainfall expected
5
°C wind chill
37
kph wind from SE

Portstewart weather for Thursday 22nd January 2026

Expect mostly cloudy with light rain in Portstewart, Northern Ireland with a maximum temperature of 10°C and no hours of bright sunshine. There are 0-2 mm of rainfall expected with 93% chance of some rain and a moderate breeze of 28 kph from the south-east.

10
°C maximum temperature
6
°C minimum temperature
mostly cloudy with light rain
0
hours of sunshine
0
UV index (None)
93
% chance of some rain
<2
mm of rainfall expected
6
°C wind chill
28
kph wind from SE

Portstewart weather for Friday 23rd January 2026

Expect mostly cloudy with light rain in Portstewart, Northern Ireland with a maximum temperature of 8°C and 3 hours of bright sunshine. There are 0-2 mm of rainfall expected with 43% chance of some rain and a fresh breeze of 36 kph from the east.

8
°C maximum temperature
5
°C minimum temperature
mostly cloudy with light rain
3
hours of sunshine
0
UV index (None)
43
% chance of some rain
<2
mm of rainfall expected
3
°C wind chill
36
kph wind from E

Portstewart weather for Saturday 24th January 2026

Expect mostly cloudy with light rain in Portstewart, Northern Ireland with a maximum temperature of 7°C and 2 hours of bright sunshine. There are 0-2 mm of rainfall expected with 24% chance of some rain and a fresh breeze of 32 kph from the east.

7
°C maximum temperature
4
°C minimum temperature
mostly cloudy with light rain
2
hours of sunshine
0
UV index (None)
24
% chance of some rain
<2
mm of rainfall expected
2
°C wind chill
32
kph wind from E

Portstewart weather for Sunday 25th January 2026

Expect broken clouds in Portstewart, Northern Ireland with a maximum temperature of 6°C and 3 hours of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 29 kph from the east.