Portstewart weather live forecast

Today's maximum temperature in Portstewart is expected to be 24°C. Select a day from the live weather forecast for Portstewart, Northern Ireland, UK for more weather parameters.

Thursday
28th May
24

14

9

5
Friday
29th May
20

12

6

5
Saturday
30th May
20

11

1

4
Sunday
31st May
18

11

1

2
Monday
1st Jun
18

11

0

4

5-day weather forecast updated at 04:03 on Thursday 28th May 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 Thursday 28th May 2026

Expect sunshine and showers in Portstewart, Northern Ireland with a maximum temperature of 24°C, maximum UV of 5 (Moderate) and 9 hours of bright sunshine. There are 0-2 mm of rainfall expected with 23% chance of some rain and a moderate breeze of 28 kph from the south-east.

24
°C maximum temperature
14
°C minimum temperature
sunshine and showers
9
hours of sunshine
5
UV index (Moderate)
23
% chance of some rain
<2
mm of rainfall expected
24
°C wind chill
28
kph wind from SE

Portstewart weather for Friday 29th May 2026

Expect mostly cloudy with light rain in Portstewart, Northern Ireland with a maximum temperature of 20°C, maximum UV of 5 (Moderate) and 6 hours of bright sunshine. There are 0-2 mm of rainfall expected with 14% chance of some rain and a fresh breeze of 30 kph from the west.

20
°C maximum temperature
12
°C minimum temperature
mostly cloudy with light rain
6
hours of sunshine
5
UV index (Moderate)
14
% chance of some rain
<2
mm of rainfall expected
20
°C wind chill
30
kph wind from W

Portstewart weather for Saturday 30th May 2026

Expect mostly cloudy with light rain in Portstewart, Northern Ireland with a maximum temperature of 20°C, maximum UV of 4 (Moderate) and 1 hour of bright sunshine. There are 2-5 mm of rainfall expected with 79% chance of some rain and a moderate breeze of 20 kph from the south.

20
°C maximum temperature
11
°C minimum temperature
mostly cloudy with light rain
1
hour of sunshine
4
UV index (Moderate)
79
% chance of some rain
<5
mm of rainfall expected
20
°C wind chill
20
kph wind from S

Portstewart weather for Sunday 31st May 2026

Expect mostly cloudy with light rain in Portstewart, Northern Ireland with a maximum temperature of 18°C, maximum UV of 2 (Low) and 1 hour of bright sunshine. There are 0-2 mm of rainfall expected with 84% chance of some rain and a moderate breeze of 20 kph from the south-west.

18
°C maximum temperature
11
°C minimum temperature
mostly cloudy with light rain
1
hour of sunshine
2
UV index (Low)
84
% chance of some rain
<2
mm of rainfall expected
18
°C wind chill
20
kph wind from SW

Portstewart weather for Monday 1st June 2026

Expect mostly cloudy with light rain in Portstewart, Northern Ireland with a maximum temperature of 18°C, maximum UV of 4 (Moderate) and no hours of bright sunshine. There are 2-5 mm of rainfall expected with 86% chance of some rain and a moderate breeze of 23 kph from the west.