Portstewart weather live forecast

Today's maximum temperature in Portstewart is expected to be 12°C. Select a day from the live weather forecast for Portstewart, Northern Ireland, UK for more weather parameters.

Saturday
21st Feb
12

8

0

0
Sunday
22nd Feb
10

8

2

1
Monday
23rd Feb
11

8

0

0
Tuesday
24th Feb
12

9

0

1
Wednesday
25th Feb
12

8

3

1

5-day weather forecast updated at 04:06 on Saturday 21st February 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 February 2026

Expect mostly cloudy with light rain in Portstewart, Northern Ireland with a maximum temperature of 12°C and no hours of bright sunshine. There are 2-5 mm of rainfall expected with 85% chance of some rain and a moderate breeze of 21 kph from the south-west.

12
°C maximum temperature
8
°C minimum temperature
mostly cloudy with light rain
0
hours of sunshine
0
UV index (None)
85
% chance of some rain
<5
mm of rainfall expected
0
no heat & humidity
21
kph wind from SW

Portstewart weather for Sunday 22nd February 2026

Expect broken clouds in Portstewart, Northern Ireland with a maximum temperature of 10°C, maximum UV of 1 (Low) and 2 hours of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 37 kph from the south-west.

10
°C maximum temperature
8
°C minimum temperature
broken clouds
2
hours of sunshine
1
UV index (Low)
0
mm of rainfall expected
0
no heat & humidity
37
kph wind from SW

Portstewart weather for Monday 23rd February 2026

Expect mostly cloudy with rain in Portstewart, Northern Ireland with a maximum temperature of 11°C and no hours of bright sunshine. There are 5-10 mm of rainfall expected with 93% chance of some rain and a fresh breeze of 30 kph from the south-west.

11
°C maximum temperature
8
°C minimum temperature
mostly cloudy with rain
0
hours of sunshine
0
UV index (None)
93
% chance of some rain
<10
mm of rainfall expected
0
no heat & humidity
30
kph wind from SW

Portstewart weather for Tuesday 24th February 2026

Expect mostly cloudy with light rain in Portstewart, Northern Ireland with a maximum temperature of 12°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 0-2 mm of rainfall expected with 42% chance of some rain and a moderate breeze of 26 kph from the south.

12
°C maximum temperature
9
°C minimum temperature
mostly cloudy with light rain
0
hours of sunshine
1
UV index (Low)
42
% chance of some rain
<2
mm of rainfall expected
12
°C wind chill
26
kph wind from S

Portstewart weather for Wednesday 25th February 2026

Expect mostly cloudy with light rain in Portstewart, Northern Ireland with a maximum temperature of 12°C, maximum UV of 1 (Low) and 3 hours of bright sunshine. There are 2-5 mm of rainfall expected with 74% chance of some rain and a gentle breeze of 17 kph from the south.