Portstewart weather live forecast

Today's maximum temperature in Portstewart is expected to be 11°C. Select a day from the live weather forecast for Portstewart, Northern Ireland, UK for more weather parameters.

Wednesday
7th Oct
11

9

5

1
Thursday
8th Oct
15

9

0

1
Friday
9th Oct
15

10

4

2
Saturday
10th Oct
12

9

5

1
Sunday
11th Oct
12

8

6

2

5-day weather forecast updated at 04:03 on Wednesday 7th 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 Wednesday 7th October 2026

Expect sunshine and showers in Portstewart, Northern Ireland with a maximum temperature of 11°C, maximum UV of 1 (Low) and 5 hours of bright sunshine. There are 0-2 mm of rainfall expected with 54% chance of some rain and a fresh breeze of 30 kph from the north-west.

11
°C maximum temperature
9
°C minimum temperature
sunshine and showers
5
hours of sunshine
1
UV index (Low)
54
% chance of some rain
<2
mm of rainfall expected
0
no heat & humidity
30
kph wind from NW

Portstewart weather for Thursday 8th October 2026

Expect mostly cloudy with rain in Portstewart, Northern Ireland with a maximum temperature of 15°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 5-10 mm of rainfall expected with 99% chance of some rain and a fresh breeze of 30 kph from the south.

15
°C maximum temperature
9
°C minimum temperature
mostly cloudy with rain
0
hours of sunshine
1
UV index (Low)
99
% chance of some rain
<10
mm of rainfall expected
15
°C wind chill
30
kph wind from S

Portstewart weather for Friday 9th October 2026

Expect sunshine and showers in Portstewart, Northern Ireland with a maximum temperature of 15°C, maximum UV of 2 (Low) and 4 hours of bright sunshine. There are 5-10 mm of rainfall expected with 78% chance of some rain and a strong breeze of 41 kph from the west.

15
°C maximum temperature
10
°C minimum temperature
sunshine and showers
4
hours of sunshine
2
UV index (Low)
78
% chance of some rain
<10
mm of rainfall expected
0
no heat & humidity
41
kph wind from W

Portstewart weather for Saturday 10th October 2026

Expect sunshine and showers in Portstewart, Northern Ireland with a maximum temperature of 12°C, maximum UV of 1 (Low) and 5 hours of bright sunshine. There are 2-5 mm of rainfall expected with 72% chance of some rain and a strong breeze of 46 kph from the west.

12
°C maximum temperature
9
°C minimum temperature
sunshine and showers
5
hours of sunshine
1
UV index (Low)
72
% chance of some rain
<5
mm of rainfall expected
12
°C wind chill
46
kph wind from W

Portstewart weather for Sunday 11th October 2026

Expect sunshine and showers in Portstewart, Northern Ireland with a maximum temperature of 12°C, maximum UV of 2 (Low) and 6 hours of bright sunshine. There are 0-2 mm of rainfall expected with 38% chance of some rain and a moderate breeze of 20 kph from the west.