Portstewart weather live forecast

Today's maximum temperature in Portstewart is expected to be 63°F. Select a day from the live weather forecast for Portstewart, Northern Ireland, UK for more weather parameters.

Sunday
19th Jul
63

54

7

6
Monday
20th Jul
59

55

1

4
Tuesday
21st Jul
63

52

3

3
Wednesday
22nd Jul
66

52

0

4
Thursday
23rd Jul
68

54

1

6

5-day weather forecast updated at 04:03 on Sunday 19th 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 Sunday 19th July 2026

Expect broken clouds in Portstewart, Northern Ireland with a maximum temperature of 63°F, maximum UV of 6 (High) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 12 mph from the north.

63
°F maximum temperature
54
°F minimum temperature
broken clouds
7
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
63
°F wind chill
12
mph wind from N

Portstewart weather for Monday 20th July 2026

Expect broken clouds in Portstewart, Northern Ireland with a maximum temperature of 59°F, maximum UV of 4 (Moderate) and 1 hour of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 13 mph from the north.

59
°F maximum temperature
55
°F minimum temperature
broken clouds
1
hour of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
13
mph wind from N

Portstewart weather for Tuesday 21st July 2026

Expect broken clouds in Portstewart, Northern Ireland with a maximum temperature of 63°F, maximum UV of 3 (Moderate) and 3 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 17 mph from the north-west.

63
°F maximum temperature
52
°F minimum temperature
broken clouds
3
hours of sunshine
3
UV index (Moderate)
0
mm of rainfall expected
63
°F wind chill
17
mph wind from NW

Portstewart weather for Wednesday 22nd July 2026

Expect overcast skies in Portstewart, Northern Ireland with a maximum temperature of 66°F, maximum UV of 4 (Moderate) and no hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 11 mph from the north-west.

66
°F maximum temperature
52
°F minimum temperature
overcast skies
0
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
66
°F wind chill
11
mph wind from NW

Portstewart weather for Thursday 23rd July 2026

Expect overcast skies in Portstewart, Northern Ireland with a maximum temperature of 68°F, maximum UV of 6 (High) and 1 hour of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 11 mph from the north-west.