Portstewart weather live forecast

Today's maximum temperature in Portstewart is expected to be 17°C. Select a day from the live weather forecast for Portstewart, Northern Ireland, UK for more weather parameters.

Monday
5th Oct
17

11

0

1
Tuesday
6th Oct
13

8

4

2
Wednesday
7th Oct
12

8

5

1
Thursday
8th Oct
12

7

1

1
Friday
9th Oct
14

8

3

1

5-day weather forecast updated at 04:02 on Monday 5th 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 Monday 5th October 2026

Expect overcast with light rain in Portstewart, Northern Ireland with a maximum temperature of 17°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 0-2 mm of rainfall expected with 56% chance of some rain and a moderate breeze of 27 kph from the south-west.

17
°C maximum temperature
11
°C minimum temperature
overcast with light rain
0
hours of sunshine
1
UV index (Low)
56
% chance of some rain
<2
mm of rainfall expected
17
°C wind chill
27
kph wind from SW

Portstewart weather for Tuesday 6th October 2026

Expect mostly cloudy with light rain in Portstewart, Northern Ireland with a maximum temperature of 13°C, maximum UV of 2 (Low) and 4 hours of bright sunshine. There are 0-2 mm of rainfall expected with 22% chance of some rain and a gentle breeze of 16 kph from the north-west.

13
°C maximum temperature
8
°C minimum temperature
mostly cloudy with light rain
4
hours of sunshine
2
UV index (Low)
22
% chance of some rain
<2
mm of rainfall expected
0
no heat & humidity
16
kph wind from NW

Portstewart weather for Wednesday 7th October 2026

Expect sunshine and showers in Portstewart, Northern Ireland with a maximum temperature of 12°C, maximum UV of 1 (Low) and 5 hours of bright sunshine. There are 2-5 mm of rainfall expected with 63% chance of some rain and a fresh breeze of 32 kph from the north-west.

12
°C maximum temperature
8
°C minimum temperature
sunshine and showers
5
hours of sunshine
1
UV index (Low)
63
% chance of some rain
<5
mm of rainfall expected
12
°C wind chill
32
kph wind from NW

Portstewart weather for Thursday 8th October 2026

Expect mostly cloudy with light rain in Portstewart, Northern Ireland with a maximum temperature of 12°C, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 2-5 mm of rainfall expected with 76% chance of some rain and a moderate breeze of 27 kph from the north-west.

12
°C maximum temperature
7
°C minimum temperature
mostly cloudy with light rain
1
hour of sunshine
1
UV index (Low)
76
% chance of some rain
<5
mm of rainfall expected
0
no heat & humidity
27
kph wind from NW

Portstewart weather for Friday 9th October 2026

Expect mostly cloudy with light rain in Portstewart, Northern Ireland with a maximum temperature of 14°C, maximum UV of 1 (Low) and 3 hours of bright sunshine. There are 2-5 mm of rainfall expected with 70% chance of some rain and a moderate breeze of 20 kph from the west.