Portstewart weather live forecast

Today's maximum temperature in Portstewart is expected to be 15°C. Select a day from the live weather forecast for Portstewart, Northern Ireland, UK for more weather parameters.

Saturday
6th Jun
15

10

0

1
Sunday
7th Jun
16

9

2

3
Monday
8th Jun
15

8

5

3
Tuesday
9th Jun
14

7

6

4
Wednesday
10th Jun
14

7

7

5

5-day weather forecast updated at 04:03 on Saturday 6th June 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 6th June 2026

Expect mostly cloudy with light rain in Portstewart, Northern Ireland with a maximum temperature of 15°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 2-5 mm of rainfall expected with 63% chance of some rain and a gentle breeze of 15 kph from the south-east.

15
°C maximum temperature
10
°C minimum temperature
mostly cloudy with light rain
0
hours of sunshine
1
UV index (Low)
63
% chance of some rain
<5
mm of rainfall expected
15
°C wind chill
15
kph wind from SE

Portstewart weather for Sunday 7th June 2026

Expect mostly cloudy with rain in Portstewart, Northern Ireland with a maximum temperature of 16°C, maximum UV of 3 (Moderate) and 2 hours of bright sunshine. There are 5-10 mm of rainfall expected with 91% chance of some rain and a moderate breeze of 25 kph from the south.

16
°C maximum temperature
9
°C minimum temperature
mostly cloudy with rain
2
hours of sunshine
3
UV index (Moderate)
91
% chance of some rain
<10
mm of rainfall expected
16
°C wind chill
25
kph wind from S

Portstewart weather for Monday 8th June 2026

Expect mostly cloudy with light rain in Portstewart, Northern Ireland with a maximum temperature of 15°C, maximum UV of 3 (Moderate) and 5 hours of bright sunshine. There are 2-5 mm of rainfall expected with 83% chance of some rain and a moderate breeze of 20 kph from the south-west.

15
°C maximum temperature
8
°C minimum temperature
mostly cloudy with light rain
5
hours of sunshine
3
UV index (Moderate)
83
% chance of some rain
<5
mm of rainfall expected
0
no heat & humidity
20
kph wind from SW

Portstewart weather for Tuesday 9th June 2026

Expect mostly cloudy with light rain in Portstewart, Northern Ireland with a maximum temperature of 14°C, maximum UV of 4 (Moderate) and 6 hours of bright sunshine. There are 2-5 mm of rainfall expected with 86% chance of some rain and a moderate breeze of 25 kph from the north-west.

14
°C maximum temperature
7
°C minimum temperature
mostly cloudy with light rain
6
hours of sunshine
4
UV index (Moderate)
86
% chance of some rain
<5
mm of rainfall expected
0
no heat & humidity
25
kph wind from NW

Portstewart weather for Wednesday 10th June 2026

Expect mostly cloudy with light rain in Portstewart, Northern Ireland with a maximum temperature of 14°C, maximum UV of 5 (Moderate) and 7 hours of bright sunshine. There are 2-5 mm of rainfall expected with 92% chance of some rain and a gentle breeze of 16 kph from the west.