Portstewart weather live forecast

Today's maximum temperature in Portstewart is expected to be 14°C. Select a day from the live weather forecast for Portstewart, Northern Ireland, UK for more weather parameters.

Saturday
21st Mar
14

3

4

2
Sunday
22nd Mar
11

5

4

1
Monday
23rd Mar
11

3

0

2
Tuesday
24th Mar
11

3

1

1
Wednesday
25th Mar
8

3

4

2

5-day weather forecast updated at 04:03 on Saturday 21st March 2026 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 21st March 2026

Expect broken clouds in Portstewart, Northern Ireland with a maximum temperature of 14°C, maximum UV of 2 (Low) and 4 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 8 kph from the south.

14
°C maximum temperature
3
°C minimum temperature
broken clouds
4
hours of sunshine
2
UV index (Low)
0
mm of rainfall expected
0
no heat & humidity
8
kph wind from S

Portstewart weather for Sunday 22nd March 2026

Expect broken clouds in Portstewart, Northern Ireland with a maximum temperature of 11°C, maximum UV of 1 (Low) and 4 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 28 kph from the north-west.

11
°C maximum temperature
5
°C minimum temperature
broken clouds
4
hours of sunshine
1
UV index (Low)
0
mm of rainfall expected
11
°C wind chill
28
kph wind from NW

Portstewart weather for Monday 23rd March 2026

Expect mostly cloudy with light rain in Portstewart, Northern Ireland with a maximum temperature of 11°C, maximum UV of 2 (Low) and no hours of bright sunshine. There are 0-2 mm of rainfall expected with 23% chance of some rain and a fresh breeze of 32 kph from the south.

11
°C maximum temperature
3
°C minimum temperature
mostly cloudy with light rain
0
hours of sunshine
2
UV index (Low)
23
% chance of some rain
<2
mm of rainfall expected
0
no heat & humidity
32
kph wind from S

Portstewart weather for Tuesday 24th March 2026

Expect mostly cloudy with light rain in Portstewart, Northern Ireland with a maximum temperature of 11°C, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 2-5 mm of rainfall expected with 70% chance of some rain and a fresh breeze of 31 kph from the south-west.

11
°C maximum temperature
3
°C minimum temperature
mostly cloudy with light rain
1
hour of sunshine
1
UV index (Low)
70
% chance of some rain
<5
mm of rainfall expected
11
°C wind chill
31
kph wind from SW

Portstewart weather for Wednesday 25th March 2026

Expect mostly cloudy with rain in Portstewart, Northern Ireland with a maximum temperature of 8°C, maximum UV of 2 (Low) and 4 hours of bright sunshine. There are 5-10 mm of rainfall expected with 83% chance of some rain and a fresh breeze of 31 kph from the north-west.