Portstewart weather live forecast

Today's maximum temperature in Portstewart is expected to be 14°C. Select a day from the live weather forecast for Portstewart, Northern Ireland, UK for more weather parameters.

Friday
3rd Oct
14

11

1

0
Saturday
4th Oct
12

10

3

1
Sunday
5th Oct
14

10

1

1
Monday
6th Oct
17

11

1

2
Tuesday
7th Oct
14

9

3

2

5-day weather forecast updated at 04:03 on Thursday 2nd 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 3rd October 2025

Expect mostly cloudy with rain in Portstewart, Northern Ireland with a maximum temperature of 14°C and 1 hour of bright sunshine. There are 5-10 mm of rainfall expected with 99% chance of some rain and a moderate gale of 52 kph from the south-west.

14
°C maximum temperature
11
°C minimum temperature
mostly cloudy with rain
1
hour of sunshine
0
UV index (None)
99
% chance of some rain
<10
mm of rainfall expected
0
no heat & humidity
52
kph wind from SW

Portstewart weather for Saturday 4th October 2025

Expect mostly cloudy with light rain in Portstewart, Northern Ireland with a maximum temperature of 12°C, maximum UV of 1 (Low) and 3 hours of bright sunshine. There are 0-2 mm of rainfall expected with 75% chance of some rain and a strong breeze of 50 kph from the west.

12
°C maximum temperature
10
°C minimum temperature
mostly cloudy with light rain
3
hours of sunshine
1
UV index (Low)
75
% chance of some rain
<2
mm of rainfall expected
0
no heat & humidity
50
kph wind from W

Portstewart weather for Sunday 5th October 2025

Expect overcast skies in Portstewart, Northern Ireland with a maximum temperature of 14°C, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 33 kph from the west.

14
°C maximum temperature
10
°C minimum temperature
overcast skies
1
hour of sunshine
1
UV index (Low)
0
mm of rainfall expected
0
no heat & humidity
33
kph wind from W

Portstewart weather for Monday 6th October 2025

Expect mostly cloudy with light rain in Portstewart, Northern Ireland with a maximum temperature of 17°C, maximum UV of 2 (Low) and 1 hour of bright sunshine. There are 2-5 mm of rainfall expected with 61% chance of some rain and a strong breeze of 41 kph from the south-west.

17
°C maximum temperature
11
°C minimum temperature
mostly cloudy with light rain
1
hour of sunshine
2
UV index (Low)
61
% chance of some rain
<5
mm of rainfall expected
17
°C wind chill
41
kph wind from SW

Portstewart weather for Tuesday 7th October 2025

Expect mostly cloudy with light rain in Portstewart, Northern Ireland with a maximum temperature of 14°C, maximum UV of 2 (Low) and 3 hours of bright sunshine. There are 0-2 mm of rainfall expected with 53% chance of some rain and a moderate breeze of 23 kph from the west.