Portstewart weather live forecast

Today's maximum temperature in Portstewart is expected to be 20°C. Select a day from the live weather forecast for Portstewart, Northern Ireland, UK for more weather parameters.

Monday
6th Jul
20

15

1

3
Tuesday
7th Jul
21

15

2

4
Wednesday
8th Jul
23

14

2

4
Thursday
9th Jul
25

14

5

2
Friday
10th Jul
21

14

5

5

5-day weather forecast updated at 04:03 on Monday 6th July 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 Monday 6th July 2026

Expect broken clouds in Portstewart, Northern Ireland with a maximum temperature of 20°C, maximum UV of 3 (Moderate) and 1 hour of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 26 kph from the west.

20
°C maximum temperature
15
°C minimum temperature
broken clouds
1
hour of sunshine
3
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
26
kph wind from W

Portstewart weather for Tuesday 7th July 2026

Expect broken clouds in Portstewart, Northern Ireland with a maximum temperature of 21°C, maximum UV of 4 (Moderate) and 2 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 26 kph from the west.

21
°C maximum temperature
15
°C minimum temperature
broken clouds
2
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
26
kph wind from W

Portstewart weather for Wednesday 8th July 2026

Expect broken clouds in Portstewart, Northern Ireland with a maximum temperature of 23°C, maximum UV of 4 (Moderate) and 2 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 8 kph from the south-west.

23
°C maximum temperature
14
°C minimum temperature
broken clouds
2
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
23
°C wind chill
8
kph wind from SW

Portstewart weather for Thursday 9th July 2026

Expect broken clouds in Portstewart, Northern Ireland with a maximum temperature of 25°C, maximum UV of 2 (Low) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 7 kph from the south.

25
°C maximum temperature
14
°C minimum temperature
broken clouds
5
hours of sunshine
2
UV index (Low)
0
mm of rainfall expected
25
°C wind chill
7
kph wind from S

Portstewart weather for Friday 10th July 2026

Expect broken clouds in Portstewart, Northern Ireland with a maximum temperature of 21°C, maximum UV of 5 (Moderate) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 7 kph from the north-east.