Portstewart weather live forecast

Today's maximum temperature in Portstewart is expected to be 6°C. Select a day from the live weather forecast for Portstewart, Northern Ireland, UK for more weather parameters.

Wednesday
14th Jan
6

2

0

0
Thursday
15th Jan
6

2

4

0
Friday
16th Jan
6

2

0

0
Saturday
17th Jan
7

3

3

0
Sunday
18th Jan
6

3

3

0

5-day weather forecast updated at 04:04 on Wednesday 14th 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 14th January 2026

Expect mostly cloudy with light rain in Portstewart, Northern Ireland with a maximum temperature of 6°C and no hours of bright sunshine. There are 2-5 mm of rainfall expected with 98% chance of some rain and a fresh breeze of 35 kph from the south.

6
°C maximum temperature
2
°C minimum temperature
mostly cloudy with light rain
0
hours of sunshine
0
UV index (None)
98
% chance of some rain
<5
mm of rainfall expected
1
°C wind chill
35
kph wind from S

Portstewart weather for Thursday 15th January 2026

Expect broken clouds in Portstewart, Northern Ireland with a maximum temperature of 6°C and 4 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 20 kph from the south.

6
°C maximum temperature
2
°C minimum temperature
broken clouds
4
hours of sunshine
0
UV index (None)
0
mm of rainfall expected
3
°C wind chill
20
kph wind from S

Portstewart weather for Friday 16th January 2026

Expect mostly cloudy with light rain in Portstewart, Northern Ireland with a maximum temperature of 6°C and no hours of bright sunshine. There are 0-2 mm of rainfall expected with 21% chance of some rain and a gentle breeze of 17 kph from the south-east.

6
°C maximum temperature
2
°C minimum temperature
mostly cloudy with light rain
0
hours of sunshine
0
UV index (None)
21
% chance of some rain
<2
mm of rainfall expected
2
°C wind chill
17
kph wind from SE

Portstewart weather for Saturday 17th January 2026

Expect broken clouds in Portstewart, Northern Ireland with a maximum temperature of 7°C and 3 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 16 kph from the east.

7
°C maximum temperature
3
°C minimum temperature
broken clouds
3
hours of sunshine
0
UV index (None)
0
mm of rainfall expected
5
°C wind chill
16
kph wind from E

Portstewart weather for Sunday 18th January 2026

Expect sunshine and showers 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 18% chance of some rain and a gentle breeze of 19 kph from the south.