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Portstewart weather live forecast
Tomorrow's maximum temperature in Portstewart is expected to be 17°C.
-
Tuesday
8th Jul -
Wednesday
9th Jul -
Thursday
10th Jul -
Friday
11th Jul -
Saturday
12th Jul
5-day weather forecast updated at 04:03 on Tuesday 8th July 2025 GMT
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Recommended for Northern Ireland
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 8th July 2025
Expect mostly cloudy with light rain in Portstewart, Northern Ireland with a maximum temperature of 17°C, maximum UV of 2 (Low) and 1 hour of bright sunshine. There are 0-2 mm of rainfall expected with 24% chance of some rain and a gentle breeze of 18 kph from the west.
- °C maximum temperature
- °C minimum temperature
- mostly cloudy with light rain
- hour of sunshine
- UV index (Low)
- % chance of some rain
- mm of rainfall expected
- no heat & humidity
- kph wind from W
Portstewart weather for Wednesday 9th July 2025
Expect broken clouds in Portstewart, Northern Ireland with a maximum temperature of 22°C, maximum UV of 3 (Moderate) and 4 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 14 kph from the west.
- °C maximum temperature
- °C minimum temperature
- broken clouds
- hours of sunshine
- UV index (Moderate)
- mm of rainfall expected
- °C wind chill
- kph wind from W
Portstewart weather for Thursday 10th July 2025
Expect broken clouds in Portstewart, Northern Ireland with a maximum temperature of 23°C, maximum UV of 4 (Moderate) and 4 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 12 kph from the south-west.
- °C maximum temperature
- °C minimum temperature
- broken clouds
- hours of sunshine
- UV index (Moderate)
- mm of rainfall expected
- no heat & humidity
- kph wind from SW
Portstewart weather for Friday 11th July 2025
Expect scattered clouds in Portstewart, Northern Ireland with a maximum temperature of 27°C, low levels of heat & humidity, maximum UV of 6 (High) and 13 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 22 kph from the south.
- °C maximum temperature
- °C minimum temperature
- scattered clouds
- hours of sunshine
- UV index (High)
- mm of rainfall expected
- low heat & humidity
- kph wind from S
Portstewart weather for Saturday 12th July 2025
Expect scattered clouds in Portstewart, Northern Ireland with a maximum temperature of 28°C, low levels of heat & humidity, maximum UV of 6 (High) and 13 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 16 kph from the south.
- °C maximum temperature
- °C minimum temperature
- scattered clouds
- hours of sunshine
- UV index (High)
- mm of rainfall expected
- low heat & humidity
- kph wind from S
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Metric (°C / mm) | Imperial (°F / inches)
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