Portstewart weather live forecast

Today's maximum temperature in Portstewart is expected to be 54°F. Select a day from the live weather forecast for Portstewart, Northern Ireland, UK for more weather parameters.

Saturday
13th Dec
54

43

0

0
Sunday
14th Dec
55

48

1

0
Monday
15th Dec
48

37

0

0
Tuesday
16th Dec
43

36

6

0
Wednesday
17th Dec
48

36

3

0

5-day weather forecast updated at 04:06 on Friday 12th 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 Saturday 13th December 2025

Expect mostly cloudy with light rain in Portstewart, Northern Ireland with a maximum temperature of 54°F and no hours of bright sunshine. There are 2-5 mm of rainfall expected with 63% chance of some rain and a strong breeze of 25 mph from the south.

54
°F maximum temperature
43
°F minimum temperature
mostly cloudy with light rain
0
hours of sunshine
0
UV index (None)
63
% chance of some rain
<5
mm of rainfall expected
0
no heat & humidity
25
mph wind from S

Portstewart weather for Sunday 14th December 2025

Expect mostly cloudy with rain in Portstewart, Northern Ireland with a maximum temperature of 55°F and 1 hour of bright sunshine. There are 5-10 mm of rainfall expected with 84% chance of some rain and a fresh breeze of 22 mph from the south-west.

55
°F maximum temperature
48
°F minimum temperature
mostly cloudy with rain
1
hour of sunshine
0
UV index (None)
84
% chance of some rain
<10
mm of rainfall expected
0
no heat & humidity
22
mph wind from SW

Portstewart weather for Monday 15th December 2025

Expect mostly cloudy with light rain in Portstewart, Northern Ireland with a maximum temperature of 48°F and no hours of bright sunshine. There are 2-5 mm of rainfall expected with 33% chance of some rain and a moderate breeze of 14 mph from the south-west.

48
°F maximum temperature
37
°F minimum temperature
mostly cloudy with light rain
0
hours of sunshine
0
UV index (None)
33
% chance of some rain
<5
mm of rainfall expected
41
°F wind chill
14
mph wind from SW

Portstewart weather for Tuesday 16th December 2025

Expect scattered clouds in Portstewart, Northern Ireland with a maximum temperature of 43°F and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 11 mph from the south.

43
°F maximum temperature
36
°F minimum temperature
scattered clouds
6
hours of sunshine
0
UV index (None)
0
mm of rainfall expected
36
°F wind chill
11
mph wind from S

Portstewart weather for Wednesday 17th December 2025

Expect mostly cloudy with light rain in Portstewart, Northern Ireland with a maximum temperature of 48°F and 3 hours of bright sunshine. There are 0-2 mm of rainfall expected with 76% chance of some rain and a strong breeze of 24 mph from the south-west.