Portstewart weather live forecast

Tomorrow's maximum temperature in Portstewart is expected to be 16°C.

Tuesday
1st Jul

16

10

12
Wednesday
2nd Jul

15

9

10
Thursday
3rd Jul

18

9

2
Friday
4th Jul

18

12

0
Saturday
5th Jul

18

13

1

5-day weather forecast updated at 04:03 on Tuesday 1st July 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 Tuesday 1st July 2025

Expect scattered clouds in Portstewart, Northern Ireland with a maximum temperature of 16°C, maximum UV of 6 (High) and 12 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 18 kph from the north.

16
°C maximum temperature
10
°C minimum temperature
scattered clouds
12
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
16
°C wind chill
18
kph wind from N

Portstewart weather for Wednesday 2nd July 2025

Expect broken clouds in Portstewart, Northern Ireland with a maximum temperature of 15°C, maximum UV of 4 (Moderate) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 18 kph from the north-west.

15
°C maximum temperature
9
°C minimum temperature
broken clouds
10
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
18
kph wind from NW

Portstewart weather for Thursday 3rd July 2025

Expect broken clouds in Portstewart, Northern Ireland with a maximum temperature of 18°C, maximum UV of 4 (Moderate) and 2 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 19 kph from the south-west.

18
°C maximum temperature
9
°C minimum temperature
broken clouds
2
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
19
kph wind from SW

Portstewart weather for Friday 4th July 2025

Expect mostly cloudy with light rain in Portstewart, Northern Ireland with a maximum temperature of 18°C, maximum UV of 3 (Moderate) and no hours of bright sunshine. There are 0-2 mm of rainfall expected with 79% chance of some rain and a fresh breeze of 31 kph from the south-west.

18
°C maximum temperature
12
°C minimum temperature
mostly cloudy with light rain
0
hours of sunshine
3
UV index (Moderate)
79
% chance of some rain
<2
mm of rainfall expected
0
no heat & humidity
31
kph wind from SW

Portstewart weather for Saturday 5th July 2025

Expect mostly cloudy with light rain in Portstewart, Northern Ireland with a maximum temperature of 18°C, maximum UV of 4 (Moderate) and 1 hour of bright sunshine. There are 2-5 mm of rainfall expected with 84% chance of some rain and a moderate breeze of 23 kph from the south-west.