Portstewart weather live forecast

Today's maximum temperature in Portstewart is expected to be 16°C. Select a day from the live weather forecast for Portstewart, Northern Ireland, UK for more weather parameters.

Tuesday
2nd Jun
16

12

1

4
Wednesday
3rd Jun
15

10

1

3
Thursday
4th Jun
14

9

1

3
Friday
5th Jun
15

8

5

4
Saturday
6th Jun
15

8

2

2

5-day weather forecast updated at 04:03 on Tuesday 2nd June 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 Tuesday 2nd June 2026

Expect mostly cloudy with light rain in Portstewart, Northern Ireland with a maximum temperature of 16°C, maximum UV of 4 (Moderate) and 1 hour of bright sunshine. There are 2-5 mm of rainfall expected with 54% chance of some rain and a moderate breeze of 20 kph from the north-west.

16
°C maximum temperature
12
°C minimum temperature
mostly cloudy with light rain
1
hour of sunshine
4
UV index (Moderate)
54
% chance of some rain
<5
mm of rainfall expected
16
°C wind chill
20
kph wind from NW

Portstewart weather for Wednesday 3rd June 2026

Expect cloudy with some rain in Portstewart, Northern Ireland with a maximum temperature of 15°C, maximum UV of 3 (Moderate) and 1 hour of bright sunshine. There are 5-10 mm of rainfall expected with 94% chance of some rain and a moderate breeze of 23 kph from the south-west.

15
°C maximum temperature
10
°C minimum temperature
cloudy with some rain
1
hour of sunshine
3
UV index (Moderate)
94
% chance of some rain
<10
mm of rainfall expected
0
no heat & humidity
23
kph wind from SW

Portstewart weather for Thursday 4th June 2026

Expect mostly cloudy with rain in Portstewart, Northern Ireland with a maximum temperature of 14°C, maximum UV of 3 (Moderate) and 1 hour of bright sunshine. There are 5-10 mm of rainfall expected with 85% chance of some rain and a fresh breeze of 37 kph from the west.

14
°C maximum temperature
9
°C minimum temperature
mostly cloudy with rain
1
hour of sunshine
3
UV index (Moderate)
85
% chance of some rain
<10
mm of rainfall expected
14
°C wind chill
37
kph wind from W

Portstewart weather for Friday 5th June 2026

Expect mostly cloudy with light rain in Portstewart, Northern Ireland with a maximum temperature of 15°C, maximum UV of 4 (Moderate) and 5 hours of bright sunshine. There are 2-5 mm of rainfall expected with 80% chance of some rain and a moderate breeze of 26 kph from the west.

15
°C maximum temperature
8
°C minimum temperature
mostly cloudy with light rain
5
hours of sunshine
4
UV index (Moderate)
80
% chance of some rain
<5
mm of rainfall expected
15
°C wind chill
26
kph wind from W

Portstewart weather for Saturday 6th June 2026

Expect mostly cloudy with light rain in Portstewart, Northern Ireland with a maximum temperature of 15°C, maximum UV of 2 (Low) and 2 hours of bright sunshine. There are 2-5 mm of rainfall expected with 85% chance of some rain and a gentle breeze of 17 kph from the south.