Portstewart weather live forecast

Today's maximum temperature in Portstewart is expected to be 12°C. Select a day from the live weather forecast for Portstewart, Northern Ireland, UK for more weather parameters.

Friday
17th Oct
12

9

0

1
Saturday
18th Oct
14

10

0

1
Sunday
19th Oct
13

10

0

0
Monday
20th Oct
12

10

0

0
Tuesday
21st Oct
11

8

0

1

5-day weather forecast updated at 04:03 on Friday 17th October 2025 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 Friday 17th October 2025

Expect broken clouds in Portstewart, Northern Ireland with a maximum temperature of 12°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 17 kph from the south-east.

12
°C maximum temperature
9
°C minimum temperature
broken clouds
0
hours of sunshine
1
UV index (Low)
0
mm of rainfall expected
12
°C wind chill
17
kph wind from SE

Portstewart weather for Saturday 18th October 2025

Expect broken clouds in Portstewart, Northern Ireland with a maximum temperature of 14°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 31 kph from the south-east.

14
°C maximum temperature
10
°C minimum temperature
broken clouds
0
hours of sunshine
1
UV index (Low)
0
mm of rainfall expected
14
°C wind chill
31
kph wind from SE

Portstewart weather for Sunday 19th October 2025

Expect mostly cloudy with rain in Portstewart, Northern Ireland with a maximum temperature of 13°C and no hours of bright sunshine. There are 10-20 mm of rainfall expected with 98% chance of some rain and a fresh breeze of 35 kph from the south-east.

13
°C maximum temperature
10
°C minimum temperature
mostly cloudy with rain
0
hours of sunshine
0
UV index (None)
98
% chance of some rain
<20
mm of rainfall expected
0
no heat & humidity
35
kph wind from SE

Portstewart weather for Monday 20th October 2025

Expect overcast skies in Portstewart, Northern Ireland with a maximum temperature of 12°C and no hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 16 kph from the west.

12
°C maximum temperature
10
°C minimum temperature
overcast skies
0
hours of sunshine
0
UV index (None)
0
mm of rainfall expected
0
no heat & humidity
16
kph wind from W

Portstewart weather for Tuesday 21st October 2025

Expect cloudy with some rain in Portstewart, Northern Ireland with a maximum temperature of 11°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 5-10 mm of rainfall expected with 68% chance of some rain and a fresh breeze of 34 kph from the north-west.