Portstewart weather live forecast

Today's maximum temperature in Portstewart is expected to be 10°C. Select a day from the live weather forecast for Portstewart, Northern Ireland, UK for more weather parameters.

Wednesday
10th Dec
10

8

2

0
Thursday
11th Dec
10

6

1

0
Friday
12th Dec
6

3

4

0
Saturday
13th Dec
11

4

0

0
Sunday
14th Dec
11

8

0

0

5-day weather forecast updated at 04:05 on Wednesday 10th 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 10th December 2025

Expect mostly cloudy with light rain in Portstewart, Northern Ireland with a maximum temperature of 10°C and 2 hours of bright sunshine. There are 0-2 mm of rainfall expected with 8% chance of some rain and a strong breeze of 42 kph from the south-west.

10
°C maximum temperature
8
°C minimum temperature
mostly cloudy with light rain
2
hours of sunshine
0
UV index (None)
8
% chance of some rain
<2
mm of rainfall expected
0
no heat & humidity
42
kph wind from SW

Portstewart weather for Thursday 11th December 2025

Expect mostly cloudy with light rain in Portstewart, Northern Ireland with a maximum temperature of 10°C and 1 hour of bright sunshine. There are 0-2 mm of rainfall expected with 84% chance of some rain and a strong breeze of 42 kph from the south.

10
°C maximum temperature
6
°C minimum temperature
mostly cloudy with light rain
1
hour of sunshine
0
UV index (None)
84
% chance of some rain
<2
mm of rainfall expected
6
°C wind chill
42
kph wind from S

Portstewart weather for Friday 12th December 2025

Expect scattered clouds in Portstewart, Northern Ireland with a maximum temperature of 6°C and 4 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 25 kph from the south.

6
°C maximum temperature
3
°C minimum temperature
scattered clouds
4
hours of sunshine
0
UV index (None)
0
mm of rainfall expected
2
°C wind chill
25
kph wind from S

Portstewart weather for Saturday 13th December 2025

Expect mostly cloudy with light rain in Portstewart, Northern Ireland with a maximum temperature of 11°C and no hours of bright sunshine. There are 2-5 mm of rainfall expected with 71% chance of some rain and a strong breeze of 39 kph from the south.

11
°C maximum temperature
4
°C minimum temperature
mostly cloudy with light rain
0
hours of sunshine
0
UV index (None)
71
% chance of some rain
<5
mm of rainfall expected
11
°C wind chill
39
kph wind from S

Portstewart weather for Sunday 14th December 2025

Expect mostly cloudy with light rain in Portstewart, Northern Ireland with a maximum temperature of 11°C and no hours of bright sunshine. There are 2-5 mm of rainfall expected with 58% chance of some rain and a fresh breeze of 33 kph from the south-west.