Newcastle weather in August 2025

Expect 18°C daytime maximum temperatures in the shade with on average 5 hours of sunshine per day in Newcastle in August. Check more long-term weather averages for Newcastle in August before you book your next holiday to Northern Ireland in 2025/2026.

  • 18°C maximum daytime temperature in August in Newcastle18
    18°C max day temperature
  • 5 hours of sunshine per day
  • 16 days with some rainfall in August in Newcastle16
    16 days with some rainfall
  • 10°C minimum night-time temperature in August in Newcastle10
    10°C min night temperature
  • 15 hours of daylight per day in August in Newcastle15
    15 hours of daylight per day
  • No heat & humidity in August in Newcastle0
    No heat & humidity
  • 109 mm monthly rainfall in August in Newcastle109
    109 mm of monthly rainfall
  • UV (maximum) index 5 (Moderate) in August in Newcastle5
    5 (Moderate) UV index
  • 15°C sea temperature in August in Newcastle15
    15°C sea temperature

More about Newcastle

Newcastle by month

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

Recommended for Northern Ireland

Zest Car Rental: Latest UK car hire deals

  • Search for car hire deals at airports across the UK
  • Compare prices on Budget, Europcar, Hertz, Dollar & Firefly
  • Book car hire at Birmingham, Gatwick, Manchester & more
Go to Zest Car Rental deal >>

View all Zest Car Rental offers

The August 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)

Back to top

More about the UK

How hot is it in Newcastle in August?

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

How sunny is it in Newcastle in August?

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

How warm is the sea around Newcastle in August?

The average sea temperature around Newcastle in August is 15°C.

Does it rain in Newcastle in August?

There are usually 16 days with some rain in Newcastle in August and the average monthly rainfall is 109mm.

Newcastle August sunrise & sunset times

Browse the sunrise and sunset times for Newcastle in August 2025. Select a month to view Newcastle sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 04:36 20:22
Saturday, 16th August 2025 05:03 19:52
Sunday, 31st August 2025 05:30 19:16

Related posts

Popular travel offers

Explore holidays in the sun for less

More holidays

Airport parking

More parking

Airport lounges

More lounges

Top ^