Weather forecast for 10 daysKoolunga, Australia

Weather forecast for the weekend

Sunday 18. Oct 2026

  • 30°C
  • 19°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 1%
  • Precipitation: 0mm
  • Wind: 20km/hNE 37°
  • Humidity: 30%
  • UV index: 8
  • Sunrise: 6:31 am ACDT
  • Sunset: 7:31 pm ACDT
  • ▼
Today, high-altitude clouds may scatter across the sky, but the sun will still shine.
Temperatures are predicted to range from a maximum of a hot 30°C to a minimum of a comfortable 19°C.
Today, the maximum temperature is expected to align with November's average high of 26.6°C instead of October's.
Sunrise was at 6:31 am and sunset will be at 7:31 pm; the daylight will last for 13h and 0min.

10-day overview

Daily temperatures

Warmest day: Thursday 32°C.
Coldest day: Monday 26.10. 20°C.

Chance of precipitation

Highest chance: Tuesday 61%.

Long-term weather forecast

  • Sunday
  • 18. Oct 2026
  • 30°C
  • 19°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 1%
  • Precipitation: 0mm
  • Wind: 20km/hNE 37°
  • Humidity: 30%
  • UV index: 8
  • Sunrise: 6:31 am ACDT
  • Sunset: 7:31 pm ACDT
  • ▼
  • Monday
  • 19. Oct 2026
  • 30°C
  • 17°C
AM Clouds / PM Sun
AM Clouds / PM Sun
  • Precip. probability: 11%
  • Precipitation: 0mm
  • Wind: 25km/hNNE 14°
  • Humidity: 43%
  • UV index: 7
  • Sunrise: 6:30 am ACDT
  • Sunset: 7:32 pm ACDT
  • ▼
  • Tuesday
  • 20. Oct 2026
  • 24°C
  • 14°C
Scattered Thunderstorms
Scattered Thunderstorms
  • Precip. probability: 61%
  • Precipitation: 6mm
  • Wind: 15km/hWNW 289°
  • Humidity: 68%
  • UV index: 5
  • Sunrise: 6:29 am ACDT
  • Sunset: 7:33 pm ACDT
  • ▼
  • Wednesday
  • 21. Oct 2026
  • 28°C
  • 15°C
Mostly Sunny
Mostly Sunny
  • Precip. probability: 9%
  • Precipitation: 0mm
  • Wind: 15km/hS 177°
  • Humidity: 60%
  • UV index: 8
  • Sunrise: 6:28 am ACDT
  • Sunset: 7:34 pm ACDT
  • ▼
  • Thursday
  • 22. Oct 2026
  • 32°C
  • 19°C
Mostly Sunny
Mostly Sunny
  • Precip. probability: 6%
  • Precipitation: 0mm
  • Wind: 19km/hNNW 337°
  • Humidity: 45%
  • UV index: 8
  • Sunrise: 6:27 am ACDT
  • Sunset: 7:35 pm ACDT
  • ▼
  • Friday
  • 23. Oct 2026
  • 29°C
  • 14°C
Mostly Sunny
Mostly Sunny
  • Precip. probability: 12%
  • Precipitation: 1mm
  • Wind: 24km/hWNW 291°
  • Humidity: 45%
  • UV index: 8
  • Sunrise: 6:26 am ACDT
  • Sunset: 7:35 pm ACDT
  • ▼
  • Saturday
  • 24. Oct 2026
  • 26°C
  • 13°C
PM Showers
PM Showers
  • Precip. probability: 45%
  • Precipitation: 5mm
  • Wind: 19km/hSSW 199°
  • Humidity: 49%
  • UV index: 8
  • Sunrise: 6:25 am ACDT
  • Sunset: 7:36 pm ACDT
  • ▼
  • Sunday
  • 25. Oct 2026
  • 22°C
  • 10°C
AM Showers
AM Showers
  • Precip. probability: 41%
  • Precipitation: 3mm
  • Wind: 22km/hSSW 205°
  • Humidity: 54%
  • UV index: 8
  • Sunrise: 6:23 am ACDT
  • Sunset: 7:37 pm ACDT
  • ▼
  • Monday
  • 26. Oct 2026
  • 20°C
  • 9°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0mm
  • Wind: 24km/hSSW 197°
  • Humidity: 53%
  • UV index: 8
  • Sunrise: 6:22 am ACDT
  • Sunset: 7:38 pm ACDT
  • ▼
  • Tuesday
  • 27. Oct 2026
  • 21°C
  • 10°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 9%
  • Precipitation: 0mm
  • Wind: 22km/hSSW 207°
  • Humidity: 49%
  • UV index: 9
  • Sunrise: 6:21 am ACDT
  • Sunset: 7:39 pm ACDT
  • ▼
The weather will be unstable for the next ten days, and a mix of overcast, dry and sunny, showery and storm-filled weather is expected.
Rainfall is expected on Tuesday, Friday through next Sunday.
Temperature variation will be noticeable throughout the forecast window. Highs will range from 20°C to 32°C, while the difference in minimum temperatures will be also substantial, as nighttime lows are forecast to fall between 9°C and 19°C.
Thursday is expected to be the hottest, reaching up to 32°C; with the highest temperature of 20°C, next Monday will be the coldest day.
Updated: Oct 18, 2026 @ 00:17:44 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Sunday, high-altitude clouds may scatter across the sky, but the sun will still shine.

Today, the highest temperature will be 30°C, while the lowest temperature will be 19°C.
The highest temperature will be uncommonly higher than the average maximum of 23.2°C in October. The lowest temperature will be also noticeably higher than the average low of 9.5°C.

On Sunday, in Koolunga, sunrise was at 6:31 am and sunset will be at 7:31 pm (ACDT).

Today, the daylight will last for 13h and 0min.