Portstewart weather live forecast

Today's maximum temperature in Portstewart is expected to be 13°C. Select a day from the live weather forecast for Portstewart, Northern Ireland, UK for more weather parameters.

Sunday
14th Dec
13

9

1

0
Monday
15th Dec
9

3

0

0
Tuesday
16th Dec
6

2

6

0
Wednesday
17th Dec
9

2

3

0
Thursday
18th Dec
9

5

2

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 Sunday 14th December 2025

Expect mostly cloudy with rain in Portstewart, Northern Ireland with a maximum temperature of 13°C 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 35 kph from the south-west.

13
°C maximum temperature
9
°C 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
35
kph 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 9°C 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 23 kph from the south-west.

9
°C maximum temperature
3
°C 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
5
°C wind chill
23
kph wind from SW

Portstewart weather for Tuesday 16th December 2025

Expect scattered clouds in Portstewart, Northern Ireland with a maximum temperature of 6°C and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 18 kph from the south.

6
°C maximum temperature
2
°C minimum temperature
scattered clouds
6
hours of sunshine
0
UV index (None)
0
mm of rainfall expected
2
°C wind chill
18
kph 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 9°C 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 39 kph from the south-west.

9
°C maximum temperature
2
°C minimum temperature
mostly cloudy with light rain
3
hours of sunshine
0
UV index (None)
76
% chance of some rain
<2
mm of rainfall expected
5
°C wind chill
39
kph wind from SW

Portstewart weather for Thursday 18th December 2025

Expect mostly cloudy with rain in Portstewart, Northern Ireland with a maximum temperature of 9°C and 2 hours of bright sunshine. There are 5-10 mm of rainfall expected with 50% chance of some rain and a fresh breeze of 33 kph from the south.