Portstewart weather live forecast

Today's maximum temperature in Portstewart is expected to be 72°F. Select a day from the live weather forecast for Portstewart, Northern Ireland, UK for more weather parameters.

Tuesday
7th Jul
72

61

2

4
Wednesday
8th Jul
72

59

2

5
Thursday
9th Jul
77

57

7

3
Friday
10th Jul
70

54

1

4
Saturday
11th Jul
66

52

8

6

5-day weather forecast updated at 04:03 on Tuesday 7th July 2026 GMT

More about Portstewart

Portstewart by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Northern Ireland

Fred Olsen: Top cruise offers for 2026/2027

Sale

Explore latest offers on Fred Olsen Cruises in 2026/2027
Find last minute deals or early bird discounts
Filter offers by price, destination, ship & departure point

Go to Fred Olsen deal >>

View all Fred Olsen offers

Cruise deal finder

Destination

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 7th July 2026

Expect mostly cloudy with light rain in Portstewart, Northern Ireland with a maximum temperature of 72°F, maximum UV of 4 (Moderate) and 2 hours of bright sunshine. There are 0-2 mm of rainfall expected with 5% chance of some rain and a moderate breeze of 14 mph from the west.

72
°F maximum temperature
61
°F minimum temperature
mostly cloudy with light rain
2
hours of sunshine
4
UV index (Moderate)
5
% chance of some rain
<2
mm of rainfall expected
72
°F wind chill
14
mph wind from W

Portstewart weather for Wednesday 8th July 2026

Expect broken clouds in Portstewart, Northern Ireland with a maximum temperature of 72°F, maximum UV of 5 (Moderate) and 2 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 6 mph from the south-west.

72
°F maximum temperature
59
°F minimum temperature
broken clouds
2
hours of sunshine
5
UV index (Moderate)
0
mm of rainfall expected
72
°F wind chill
6
mph wind from SW

Portstewart weather for Thursday 9th July 2026

Expect broken clouds in Portstewart, Northern Ireland with a maximum temperature of 77°F, maximum UV of 3 (Moderate) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 8 mph from the north.

77
°F maximum temperature
57
°F minimum temperature
broken clouds
7
hours of sunshine
3
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
8
mph wind from N

Portstewart weather for Friday 10th July 2026

Expect broken clouds in Portstewart, Northern Ireland with a maximum temperature of 70°F, maximum UV of 4 (Moderate) and 1 hour of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 7 mph from the north.

70
°F maximum temperature
54
°F minimum temperature
broken clouds
1
hour of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
70
°F wind chill
7
mph wind from N

Portstewart weather for Saturday 11th July 2026

Expect broken clouds in Portstewart, Northern Ireland with a maximum temperature of 66°F, maximum UV of 6 (High) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 10 mph from the north-west.