Bangor weather in August 2025

Q: How hot is it in Bangor in August?

Daytime temperatures usually reach 18°C in Bangor in August, falling to 11°C at night.

Q: How sunny is it in Bangor in August?

There are normally 5 hours of bright sunshine each day in Bangor in August - that's 32% of daylight hours.

Q: How warm is the sea around Bangor in August?

The average sea temperature around Bangor in August is 13°C.

Q: Does it rain in Bangor in August?

There are usually 17 days with some rain in Bangor in August and the average monthly rainfall is 84mm.

Expect 64°F daytime maximum temperatures in the shade with on average 5 hours of sunshine per day in Bangor in August. Check more long-term weather averages for Bangor in August before you book your next holiday to Northern Ireland in 2025/2026.

64
64°F max day temperature
5
5 hours of sunshine per day
17
17 days with some rainfall
52
52°F min night temperature
15
15 hours of daylight per day
0
No heat & humidity
3.3
3.3 inches of monthly rainfall
5
5 (Moderate) UV index
55
55°F sea temperature

More about Bangor

Bangor by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Northern Ireland

Marriott: Hotel deals & packages

Sale

Save on your next trip with deals & packages
Includes hotel, flight, cars & more packages
Discover Bangkok, Sydney, Toronto & beyond

Go to Marriott deal >>

View all Marriott offers

The August weather guide for Northern Ireland (Bangor) 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) | Imperial (°F)