Portstewart weather live forecast

Today's maximum temperature in Portstewart is expected to be 8°C. Select a day from the live weather forecast for Portstewart, Northern Ireland, UK for more weather parameters.

Wednesday
3rd Dec
8

5

2

0
Thursday
4th Dec
7

4

2

0
Friday
5th Dec
9

4

0

0
Saturday
6th Dec
10

8

1

0
Sunday
7th Dec
10

6

3

0

5-day weather forecast updated at 04:05 on Wednesday 3rd December 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 Wednesday 3rd December 2025

Expect mostly cloudy with light rain in Portstewart, Northern Ireland with a maximum temperature of 8°C and 2 hours of bright sunshine. There are 2-5 mm of rainfall expected with 62% chance of some rain and a moderate breeze of 25 kph from the south.

8
°C maximum temperature
5
°C minimum temperature
mostly cloudy with light rain
2
hours of sunshine
0
UV index (None)
62
% chance of some rain
<5
mm of rainfall expected
4
°C wind chill
25
kph wind from S

Portstewart weather for Thursday 4th December 2025

Expect mostly cloudy with rain in Portstewart, Northern Ireland with a maximum temperature of 7°C and 2 hours of bright sunshine. There are 5-10 mm of rainfall expected with 32% chance of some rain and a moderate breeze of 24 kph from the south.

7
°C maximum temperature
4
°C minimum temperature
mostly cloudy with rain
2
hours of sunshine
0
UV index (None)
32
% chance of some rain
<10
mm of rainfall expected
3
°C wind chill
24
kph wind from S

Portstewart weather for Friday 5th December 2025

Expect cloudy with some rain in Portstewart, Northern Ireland with a maximum temperature of 9°C and no hours of bright sunshine. There are 5-10 mm of rainfall expected with 99% chance of some rain and a strong breeze of 47 kph from the south-east.

9
°C maximum temperature
4
°C minimum temperature
cloudy with some rain
0
hours of sunshine
0
UV index (None)
99
% chance of some rain
<10
mm of rainfall expected
4
°C wind chill
47
kph wind from SE

Portstewart weather for Saturday 6th December 2025

Expect mostly cloudy with rain in Portstewart, Northern Ireland with a maximum temperature of 10°C and 1 hour of bright sunshine. There are 5-10 mm of rainfall expected with 49% chance of some rain and a moderate breeze of 23 kph from the south.

10
°C maximum temperature
8
°C minimum temperature
mostly cloudy with rain
1
hour of sunshine
0
UV index (None)
49
% chance of some rain
<10
mm of rainfall expected
7
°C wind chill
23
kph wind from S

Portstewart weather for Sunday 7th December 2025

Expect mostly cloudy with light rain in Portstewart, Northern Ireland with a maximum temperature of 10°C and 3 hours of bright sunshine. There are 2-5 mm of rainfall expected with 63% chance of some rain and a fresh breeze of 33 kph from the south-west.