Portstewart weather live forecast

Today's maximum temperature in Portstewart is expected to be 46°F. Select a day from the live weather forecast for Portstewart, Northern Ireland, UK for more weather parameters.

Wednesday
3rd Dec
46

41

2

0
Thursday
4th Dec
45

39

2

0
Friday
5th Dec
48

39

0

0
Saturday
6th Dec
50

46

1

0
Sunday
7th Dec
50

43

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 46°F 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 16 mph from the south.

46
°F maximum temperature
41
°F 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
39
°F wind chill
16
mph wind from S

Portstewart weather for Thursday 4th December 2025

Expect mostly cloudy with rain in Portstewart, Northern Ireland with a maximum temperature of 45°F 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 15 mph from the south.

45
°F maximum temperature
39
°F minimum temperature
mostly cloudy with rain
2
hours of sunshine
0
UV index (None)
32
% chance of some rain
<10
mm of rainfall expected
37
°F wind chill
15
mph wind from S

Portstewart weather for Friday 5th December 2025

Expect cloudy with some rain in Portstewart, Northern Ireland with a maximum temperature of 48°F 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 29 mph from the south-east.

48
°F maximum temperature
39
°F minimum temperature
cloudy with some rain
0
hours of sunshine
0
UV index (None)
99
% chance of some rain
<10
mm of rainfall expected
39
°F wind chill
29
mph wind from SE

Portstewart weather for Saturday 6th December 2025

Expect mostly cloudy with rain in Portstewart, Northern Ireland with a maximum temperature of 50°F 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 14 mph from the south.

50
°F maximum temperature
46
°F minimum temperature
mostly cloudy with rain
1
hour of sunshine
0
UV index (None)
49
% chance of some rain
<10
mm of rainfall expected
45
°F wind chill
14
mph 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 50°F 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 21 mph from the south-west.