Portstewart weather live forecast

Today's maximum temperature in Portstewart is expected to be 13°C. Select a day from the live weather forecast for Portstewart, Northern Ireland, UK for more weather parameters.

Sunday
11th Oct
13

8

8

2
Monday
12th Oct
17

12

1

1
Tuesday
13th Oct
16

7

5

1
Wednesday
14th Oct
16

7

0

1
Thursday
15th Oct
13

8

5

1

5-day weather forecast updated at 04:03 on Sunday 11th October 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 11th October 2026

Expect scattered clouds in Portstewart, Northern Ireland with a maximum temperature of 13°C, maximum UV of 2 (Low) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 29 kph from the south-east.

13
°C maximum temperature
8
°C minimum temperature
scattered clouds
8
hours of sunshine
2
UV index (Low)
0
mm of rainfall expected
13
°C wind chill
29
kph wind from SE

Portstewart weather for Monday 12th October 2026

Expect overcast skies in Portstewart, Northern Ireland with a maximum temperature of 17°C, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 30 kph from the south.

17
°C maximum temperature
12
°C minimum temperature
overcast skies
1
hour of sunshine
1
UV index (Low)
0
mm of rainfall expected
0
no heat & humidity
30
kph wind from S

Portstewart weather for Tuesday 13th October 2026

Expect sunshine and showers in Portstewart, Northern Ireland with a maximum temperature of 16°C, maximum UV of 1 (Low) and 5 hours of bright sunshine. There are 2-5 mm of rainfall expected with 58% chance of some rain and a fresh breeze of 33 kph from the south-west.

16
°C maximum temperature
7
°C minimum temperature
sunshine and showers
5
hours of sunshine
1
UV index (Low)
58
% chance of some rain
<5
mm of rainfall expected
0
no heat & humidity
33
kph wind from SW

Portstewart weather for Wednesday 14th October 2026

Expect mostly cloudy with rain in Portstewart, Northern Ireland with a maximum temperature of 16°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 5-10 mm of rainfall expected with 52% chance of some rain and a fresh breeze of 34 kph from the south.

16
°C maximum temperature
7
°C minimum temperature
mostly cloudy with rain
0
hours of sunshine
1
UV index (Low)
52
% chance of some rain
<10
mm of rainfall expected
0
no heat & humidity
34
kph wind from S

Portstewart weather for Thursday 15th October 2026

Expect sunshine and showers in Portstewart, Northern Ireland with a maximum temperature of 13°C, maximum UV of 1 (Low) and 5 hours of bright sunshine. There are 2-5 mm of rainfall expected with 64% chance of some rain and a moderate breeze of 24 kph from the west.