Sydney weather in August 2025

Expect 18°C daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Sydney in August. Check more long-term weather averages for Sydney in August before you book your next holiday to New South Wales in 2025/2026.

  • 18°C maximum daytime temperature in August in Sydney18
    18°C max day temperature
  • 7 hours of sunshine per day
  • 10 days with some rainfall in August in Sydney10
    10 days with some rainfall
  • 9°C minimum night-time temperature in August in Sydney9
    9°C min night temperature
  • 11 hours of daylight per day in August in Sydney11
    11 hours of daylight per day
  • No heat & humidity in August in Sydney0
    No heat & humidity
  • 96 mm monthly rainfall in August in Sydney96
    96 mm of monthly rainfall
  • UV (maximum) index 4 (Moderate) in August in Sydney4
    4 (Moderate) UV index
  • 17°C sea temperature in August in Sydney17
    17°C sea temperature

More about Sydney

Sydney by month

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

Recommended for New South Wales

Travelbag: Latest holiday sale offers worldwide

  • Explore latest sale offers on holidays in 2024/2025
  • Filter deals by continent, star rating & holiday type
  • Including Dubai, Caribbean, North America, Asia & Pacific
Go to Travelbag deal >>

View all Travelbag offers

TravelbagHoliday deal finder

The August weather guide for New South Wales (Sydney) 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 Australia

How hot is it in Sydney in August?

Daytime temperatures usually reach 18°C in Sydney in August, falling to 9°C at night.

How sunny is it in Sydney in August?

There are normally 7 hours of bright sunshine each day in Sydney in August - that's 67% of daylight hours.

How warm is the sea around Sydney in August?

The average sea temperature around Sydney in August is 17°C.

Does it rain in Sydney in August?

There are usually 10 days with some rain in Sydney in August and the average monthly rainfall is 96mm.

Sydney August sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 06:48 17:16
Saturday, 16th August 2025 06:33 17:26
Sunday, 31st August 2025 06:15 17:37

Related posts

Popular travel offers

Explore holidays in the sun for less

More holidays

Airport parking

More parking

Airport lounges

More lounges

Top ^