Newfoundland & Labrador weather in August 2025

Expect 68°F daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in Newfoundland & Labrador in August. Check more long-term weather averages for Newfoundland & Labrador in August before you book your next holiday to Newfoundland & Labrador in 2025/2026.

  • 68°F maximum daytime temperature in August in Newfoundland & Labrador (St John's)68
    68°F max day temperature
  • 6 hours of sunshine per day
  • 14 days with some rainfall in August in Newfoundland & Labrador (St John's)14
    14 days with some rainfall
  • 52°F minimum night-time temperature in August in Newfoundland & Labrador (St John's)52
    52°F min night temperature
  • 14 hours of daylight per day in August in Newfoundland & Labrador (St John's)14
    14 hours of daylight per day
  • No heat & humidity in August in Newfoundland & Labrador (St John's)0
    No heat & humidity
  • 4.7 inches monthly rainfall in August in Newfoundland & Labrador (St John's)4.7
    4.7 inches of monthly rainfall
  • UV (maximum) index 6 (High) in August in Newfoundland & Labrador (St John's)6
    6 (High) UV index
  • 57°F sea temperature in August in Newfoundland & Labrador (St John's)57
    57°F sea temperature

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The August weather guide for Newfoundland & Labrador (St John's) 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.

Top Newfoundland & Labrador destinations

Below are average maximum temperatures at popular countries, regions and places in Newfoundland & Labrador in August. Select a holiday destination to see more weather parameters.

All Newfoundland & Labrador destinations

Metric (°C)  |  Imperial (°F)

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How hot is it in Newfoundland & Labrador in August?

Daytime temperatures usually reach 68°F in St John's, Newfoundland & Labrador in August, falling to 52°F at night.

How sunny is it in Newfoundland & Labrador in August?

There are normally 6 hours of bright sunshine each day in St John's, Newfoundland & Labrador in August - that's 42% of daylight hours.

How warm is the sea around Newfoundland & Labrador in August?

The average sea temperature around St John's, Newfoundland & Labrador in August is 57°F.

Does it rain in Newfoundland & Labrador in August?

There are usually 14 days with some rain in St John's, Newfoundland & Labrador in August and the average monthly rainfall is 4.7 inches.

Newfoundland & Labrador August sunrise & sunset times

Browse the sunrise and sunset times for Newfoundland & Labrador in August 2025. Select a month to view Newfoundland & Labrador sunrise and sunset times for the next 12 months. The Newfoundland & Labrador sunrise and sunset times shown below are for St John's.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 04:39 19:35
Saturday, 16th August 2025 04:59 19:11
Sunday, 31st August 2025 05:19 18:43

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