Portstewart weather live forecast

Today's maximum temperature in Portstewart is expected to be 17°C. Select a day from the live weather forecast for Portstewart, Northern Ireland, UK for more weather parameters.

Thursday
2nd Jul
17

12

3

4
Friday
3rd Jul
20

11

2

4
Saturday
4th Jul
19

14

0

1
Sunday
5th Jul
20

14

0

2
Monday
6th Jul
19

14

0

2

5-day weather forecast updated at 04:03 on Thursday 2nd 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 Thursday 2nd July 2026

Expect broken clouds in Portstewart, Northern Ireland with a maximum temperature of 17°C, maximum UV of 4 (Moderate) and 3 hours of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 38 kph from the north-west.

17
°C maximum temperature
12
°C minimum temperature
broken clouds
3
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
17
°C wind chill
38
kph wind from NW

Portstewart weather for Friday 3rd July 2026

Expect mostly cloudy with light rain in Portstewart, Northern Ireland with a maximum temperature of 20°C, maximum UV of 4 (Moderate) and 2 hours of bright sunshine. There are 0-2 mm of rainfall expected with 19% chance of some rain and a moderate breeze of 24 kph from the south-west.

20
°C maximum temperature
11
°C minimum temperature
mostly cloudy with light rain
2
hours of sunshine
4
UV index (Moderate)
19
% chance of some rain
<2
mm of rainfall expected
0
no heat & humidity
24
kph wind from SW

Portstewart weather for Saturday 4th July 2026

Expect mostly cloudy with light rain in Portstewart, Northern Ireland with a maximum temperature of 19°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 0-2 mm of rainfall expected with 44% chance of some rain and a fresh breeze of 31 kph from the west.

19
°C maximum temperature
14
°C minimum temperature
mostly cloudy with light rain
0
hours of sunshine
1
UV index (Low)
44
% chance of some rain
<2
mm of rainfall expected
19
°C wind chill
31
kph wind from W

Portstewart weather for Sunday 5th July 2026

Expect mostly cloudy with light rain in Portstewart, Northern Ireland with a maximum temperature of 20°C, maximum UV of 2 (Low) and no hours of bright sunshine. There are 0-2 mm of rainfall expected with 56% chance of some rain and a moderate breeze of 23 kph from the west.

20
°C maximum temperature
14
°C minimum temperature
mostly cloudy with light rain
0
hours of sunshine
2
UV index (Low)
56
% chance of some rain
<2
mm of rainfall expected
20
°C wind chill
23
kph wind from W

Portstewart weather for Monday 6th July 2026

Expect mostly cloudy with light rain in Portstewart, Northern Ireland with a maximum temperature of 19°C, maximum UV of 2 (Low) and no hours of bright sunshine. There are 2-5 mm of rainfall expected with 46% chance of some rain and a fresh breeze of 31 kph from the west.