Portstewart weather live forecast

Tomorrow's maximum temperature in Portstewart is expected to be 15°C.

Wednesday
28th May

15

11

6
Thursday
29th May

19

11

4
Friday
30th May

19

10

8
Saturday
31st May

18

9

5
Sunday
1st Jun

14

8

3

5-day weather forecast updated at 04:03 on Wednesday 28th May 2025 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 28th May 2025

Expect mostly cloudy with light rain in Portstewart, Northern Ireland with a maximum temperature of 15°C, maximum UV of 4 (Moderate) and 6 hours of bright sunshine. There are 0-2 mm of rainfall expected with 85% chance of some rain and a gentle breeze of 15 kph from the west.

15
°C maximum temperature
11
°C minimum temperature
mostly cloudy with light rain
6
hours of sunshine
4
UV index (Moderate)
85
% chance of some rain
<2
mm of rainfall expected
15
°C wind chill
15
kph wind from W

Portstewart weather for Thursday 29th May 2025

Expect mostly cloudy with rain in Portstewart, Northern Ireland with a maximum temperature of 19°C, maximum UV of 5 (Moderate) and 4 hours of bright sunshine. There are 5-10 mm of rainfall expected with 47% chance of some rain and a fresh breeze of 31 kph from the south-west.

19
°C maximum temperature
11
°C minimum temperature
mostly cloudy with rain
4
hours of sunshine
5
UV index (Moderate)
47
% chance of some rain
<10
mm of rainfall expected
19
°C wind chill
31
kph wind from SW

Portstewart weather for Friday 30th May 2025

Expect broken clouds in Portstewart, Northern Ireland with a maximum temperature of 19°C, maximum UV of 5 (Moderate) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 23 kph from the south-west.

19
°C maximum temperature
10
°C minimum temperature
broken clouds
8
hours of sunshine
5
UV index (Moderate)
0
mm of rainfall expected
19
°C wind chill
23
kph wind from SW

Portstewart weather for Saturday 31st May 2025

Expect mostly cloudy with light rain in Portstewart, Northern Ireland with a maximum temperature of 18°C, maximum UV of 4 (Moderate) and 5 hours of bright sunshine. There are 2-5 mm of rainfall expected with 98% chance of some rain and a moderate breeze of 21 kph from the south.

18
°C maximum temperature
9
°C minimum temperature
mostly cloudy with light rain
5
hours of sunshine
4
UV index (Moderate)
98
% chance of some rain
<5
mm of rainfall expected
0
no heat & humidity
21
kph wind from S

Portstewart weather for Sunday 1st June 2025

Expect mostly cloudy with light rain in Portstewart, Northern Ireland with a maximum temperature of 14°C, maximum UV of 4 (Moderate) and 3 hours of bright sunshine. There are 0-2 mm of rainfall expected with 84% chance of some rain and a moderate breeze of 24 kph from the north-west.