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Onslow (21.6363°S, 115.1124°E, 3m AMSL) set as my default location ›

  2. Onslow Local Weather

    21.64°S, 115.11°E
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    Now in Onslow

    Updated at 13:00 WST

    PAST 24 HOURS

    29.4 °C

    Feels like 28.8 °C
    Dew Point
    22.1 °C
    Gusts
    35km/h
    Relative Humidity
    65%
    Pressure
    1011.8hPa
    Wind
    NW 28km/h
    Rainfall
    0.0mm

    Onslow Airport

    Thevenard Island

    Barrow Island

    Mardie

    Onslow Monday Forecast

    Mostly sunny
    Mostly sunny
    23 °C
    32 °C
    50%
    1-5mm
    Onslow for Monday
    Partly cloudy. Slight chance of a shower in the SW, near zero chance elsewhere. The chance of a thunderstorm in the afternoon and early evening. Winds NE/SE 25 to 40 km/h decreasing to 15 to 20 km/h in the evening. Daytime maximum temperatures 38 to 43.
    Fire Danger
    High
    DAM LEVELS

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  4. Onslow 48 HOUR FORECAST

    TEMP WIND RAIN CHANCE

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  6. 7 day forecast

    Today: Partly cloudy. Slight chance of a shower in the SW, near zero chance elsewhere. The chance of a thunderstorm in the afternoon and early evening. Winds NE/SE 25 to 40 km/h decreasing to 15 to 20 km/h in the evening. Daytime maximum temperatures 38 to 43.

    Forecast for Onslow (21.6363°S, 115.1124°E, 3m AMSL)
      Mon Tue Wed Thu Fri Sat Sun
    Summary Mostly sunny Mostly sunny Windy Windy Windy Mostly sunny Mostly sunny
    Minimum 23° 23° 25° 25° 25° 25° 27°
    Maximum 32° 37° 37° 37° 38° 40° 41°
    Chance of rain 50% 10% 5% 5% 10% 5% 5%
    Likely amount 1-5mm < 1mm < 1mm < 1mm < 1mm < 1mm < 1mm
    UV index Extreme Extreme Extreme Extreme Extreme Extreme Extreme
    Fire Danger Rating High High High High - - -
    Frost risk Nil Nil Nil Nil Nil Nil Nil
      9am 3pm 9am 3pm 9am 3pm 9am 3pm 9am 3pm 9am 3pm 9am 3pm
    Wind speed 15
    (km/h)     		29
    (km/h)     		12
    (km/h)     		33
    (km/h)     		16
    (km/h)     		37
    (km/h)     		19
    (km/h)     		38
    (km/h)     		22
    (km/h)     		35
    (km/h)     		26
    (km/h)     		30
    (km/h)     		23
    (km/h)     		34
    (km/h)
    Wind direction N NW SW WNW WSW W WSW W SW W SSW W S WNW
    Relative humidity 68% 67% 53% 58% 50% 54% 46% 48% 37% 38% 31% 32% 29% 38%
    Dew point 22°C 23°C 22°C 23°C 21°C 23°C 19°C 21°C 16°C 19°C 14°C 18°C 15°C 21°C

  7. Sunrise and sunset times

    Sunrise / Sunset for Onslow (21.6363°S, 115.1124°E, 3m AMSL)
    First light Sunrise Sunset Last light Moon rise Moon set Moon phase Full moon Last quarter New moon First quarter
    5:03am WST 5:28am WST 6:49pm WST 7:14pm WST 2:55pm WST 2:03am WST Waxing gibbous Full moon Dec 05 Last quarter Dec 12 New moon Dec 20 First quarter Dec 28

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  9. Tides graph

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  11. Onslow Past 5 Days

    This Month
    Minimum Maximum Rainfall
    Thursday
    Nov 27     		23.9 °C 37.7 °C
    0.0 mm
    Friday
    Nov 28     		22.1 °C 35.9 °C
    0.0 mm
    Saturday
    Nov 29     		21.9 °C 36.4 °C
    0.0 mm
    Sunday
    Nov 30     		21.1 °C 31.1 °C
    0.0 mm
    Monday
    Dec 01     		21.7 °C 31.3 °C
    0.0 mm
    Legend

  12. Almanac

    Onslow minimum temp history (21.6363°S, 115.1124°E, 3m AMSL)
    MAXIMUM TEMPERATURE MINIMUM TEMPERATURE
    Hottest this month 31.3° 01/12/2025 Coldest this month 21.7° 01/12/2025
    Hottest on record 49.2 22/12/2011 Coldest on record 16.4 03/12/1952
    Hottest this year 45.7° 03/03/2025 Coldest this year 9.1° 26/07/2025
    Long term average 36.0° Long term average 22.6°
    Average this month 31.3° Average this month 21.7°
    Hottest December On Record Avg. max. temp. 38.6° 1947 Coldest December on record Avg. min. temp. 20.0° 1952
    Onslow rainfall history (21.6363°S, 115.1124°E, 3m AMSL)
    RAINFALL
    Wettest This Month 0.0mm 01/12/2025 Total This Month 0.0mm
    0.0 days
    Long Term Average 3.2mm 0.9 days Wettest December on record 54.0mm 1998
    Driest on record 0.0mm 2023

  13. Onslow Year To Date

    Average Rainfall To Dec 302.5mm 33.8 day(s)
    Total For 2025 280.2mm 48.0 day(s)
    Total To This Day 2024 103.2mm 35.0 day(s)
    Wettest Day 78.0mm Jan20
    Lowest Temperature 9.1°C Jul26
    Highest Temperature 45.7°C Mar 3

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  2. Warnings

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