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Portstewart weather in July 2025
Expect 17°C daytime maximum temperatures in the shade with on average 4 hours of sunshine per day in Portstewart in July. Check more long-term weather averages for Portstewart in July before you book your next holiday to Northern Ireland in 2025/2026.
- 1717°C max day temperature
- 4 hours of sunshine per day
- 1818 days with some rainfall
- 1010°C min night temperature
- 1717 hours of daylight per day
- 0No heat & humidity
- 7777 mm of monthly rainfall
- 66 (High) UV index
- 1313°C sea temperature
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Recommended for Northern Ireland
The July weather guide for Northern Ireland (Portstewart) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.
Metric (°C / mm) | Imperial (°F / inches)
More about the UK
How warm is it in Portstewart in July?
Daytime temperatures usually reach 17°C in Portstewart in July, falling to 10°C at night.
How sunny is it in Portstewart in July?
There are normally 4 hours of bright sunshine each day in Portstewart in July - that's 25% of daylight hours.
How warm is the sea around Portstewart in July?
The average sea temperature around Portstewart in July is 13°C.
Does it rain in Portstewart in July?
There are usually 18 days with some rain in Portstewart in July and the average monthly rainfall is 77mm.
Portstewart July sunrise & sunset times
Browse the sunrise and sunset times for Portstewart in July 2025. Select a month to view Portstewart sunrise and sunset times for the next 12 months.
JanFebMarAprMayJunJulAugSepOctNovDec
Date | Sunrise times | Sunset times |
---|---|---|
Tuesday, 1st July 2025 | 03:51 | 21:10 |
Wednesday, 16th July 2025 | 04:09 | 20:56 |
Thursday, 31st July 2025 | 04:33 | 20:32 |
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