Newcastle weather in July 2026

Q: How hot is it in Newcastle in July?

Daytime temperatures usually reach 18°C in Newcastle in July, falling to 10°C at night.

Q: How sunny is it in Newcastle in July?

There are normally 5 hours of bright sunshine each day in Newcastle in July - that's 31% of daylight hours.

Q: How warm is the sea around Newcastle in July?

The average sea temperature around Newcastle in July is 14°C.

Q: Does it rain in Newcastle in July?

There are usually 14 days with some rain in Newcastle in July and the average monthly rainfall is 81mm.

Expect daytime maximum temperatures of 18°C in Newcastle, Northern Ireland in July based on long-term weather averages. There are 5 hours of sunshine per day on average with 14 days with some rainfall and typically 81 mm of rainfall in the month.

18
18°C max day temperature
5
5 hours of sunshine per day
14
14 days with some rainfall
10
10°C min night temperature
17
17 hours of daylight per day
0
No heat & humidity
81
81 mm of monthly rainfall
6
6 (High) UV index
14
14°C sea temperature

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The July weather guide for Northern Ireland (Newcastle) 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)