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.

Tuesday
20th Oct
13

7

4

1
Wednesday
21st Oct
10

3

2

0
Thursday
22nd Oct
11

3

4

1
Friday
23rd Oct
10

6

4

1
Saturday
24th Oct
11

5

1

1

5-day weather forecast updated at 04:03 on Tuesday 20th October 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 Tuesday 20th October 2026

Expect scattered clouds in Portstewart, Northern Ireland with a maximum temperature of 13°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 south-east.

13
°C maximum temperature
7
°C minimum temperature
scattered clouds
4
hours of sunshine
1
UV index (Low)
0
mm of rainfall expected
0
no heat & humidity
28
kph wind from SE

Portstewart weather for Wednesday 21st October 2026

Expect mostly cloudy with rain in Portstewart, Northern Ireland with a maximum temperature of 10°C and 2 hours of bright sunshine. There are 5-10 mm of rainfall expected with 82% chance of some rain and a fresh breeze of 37 kph from the north-west.

10
°C maximum temperature
3
°C minimum temperature
mostly cloudy with rain
2
hours of sunshine
0
UV index (None)
82
% chance of some rain
<10
mm of rainfall expected
5
°C wind chill
37
kph wind from NW

Portstewart weather for Thursday 22nd October 2026

Expect mostly cloudy with light rain in Portstewart, Northern Ireland with a maximum temperature of 11°C, maximum UV of 1 (Low) and 4 hours of bright sunshine. There are 0-2 mm of rainfall expected with 65% chance of some rain and a gentle breeze of 19 kph from the south.

11
°C maximum temperature
3
°C minimum temperature
mostly cloudy with light rain
4
hours of sunshine
1
UV index (Low)
65
% chance of some rain
<2
mm of rainfall expected
0
no heat & humidity
19
kph wind from S

Portstewart weather for Friday 23rd October 2026

Expect mostly cloudy with rain in Portstewart, Northern Ireland with a maximum temperature of 10°C, maximum UV of 1 (Low) and 4 hours of bright sunshine. There are 10-20 mm of rainfall expected with 60% chance of some rain and a moderate breeze of 23 kph from the west.

10
°C maximum temperature
6
°C minimum temperature
mostly cloudy with rain
4
hours of sunshine
1
UV index (Low)
60
% chance of some rain
<20
mm of rainfall expected
0
no heat & humidity
23
kph wind from W

Portstewart weather for Saturday 24th October 2026

Expect mostly cloudy with 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 5-10 mm of rainfall expected with 78% chance of some rain and a fresh breeze of 29 kph from the west.