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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 23:00 WST

    PAST 24 HOURS

    24.6 °C

    Feels like 25.3 °C
    Dew Point
    22.7 °C
    Gusts
    28km/h
    Relative Humidity
    89%
    Pressure
    1012.7hPa
    Wind
    W 22km/h
    Rainfall
    0.0mm

    Onslow Airport

    Barrow Island

    Mardie

    Varanus Is

    Onslow Monday Forecast

    Mostly sunny
    Mostly sunny
    23 °C
    32 °C
    60%
    < 1mm
    Onslow for Monday
    Partly cloudy. Slight chance of a shower in the W, near zero chance elsewhere. The chance of a thunderstorm. Winds SE/SW 15 to 20 km/h tending NE/SE 25 to 40 km/h before dawn then tending NW/SW 15 to 20 km/h in the late evening. Overnight temperatures falling to 21 to 27 with daytime temperatures reaching 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 W, near zero chance elsewhere. The chance of a thunderstorm. Winds SE/SW 15 to 20 km/h tending NE/SE 25 to 40 km/h before dawn then tending NW/SW 15 to 20 km/h in the late evening. Overnight temperatures falling to 21 to 27 with daytime temperatures reaching 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 Sunny Mostly sunny Mostly sunny Mostly sunny Mostly sunny
    Minimum 23° 23° 25° 26° 25° 25° 25°
    Maximum 32° 37° 38° 37° 38° 39° 40°
    Chance of rain 60% 5% 5% 5% 5% 5% 5%
    Likely amount < 1mm < 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 13
    (km/h)     		30
    (km/h)     		13
    (km/h)     		33
    (km/h)     		16
    (km/h)     		35
    (km/h)     		18
    (km/h)     		36
    (km/h)     		23
    (km/h)     		35
    (km/h)     		25
    (km/h)     		32
    (km/h)     		22
    (km/h)     		33
    (km/h)
    Wind direction N NW SW WNW SW W SW W SW WSW SSW W SSW WNW
    Relative humidity 65% 64% 52% 55% 48% 52% 42% 47% 34% 34% 30% 31% 29% 39%
    Dew point 22°C 22°C 21°C 23°C 21°C 23°C 19°C 21°C 14°C 18°C 14°C 17°C 14°C 20°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
    Wednesday
    Nov 26     		24.2 °C 41.4 °C
    0.0 mm
    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
    Legend

  12. Almanac

    Onslow minimum temp history (21.6363°S, 115.1124°E, 3m AMSL)
    MAXIMUM TEMPERATURE MINIMUM TEMPERATURE
    Hottest this month 41.4° 26/11/2025 Coldest this month 18.5° 05/11/2025
    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 34.4° Long term average 20.2°
    Average this month 33.2° Average this month 21.2°
    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 01/11/2025 Total This Month 0.0mm
    0.0 days
    Long Term Average 2.6mm 0.5 days Wettest December on record 54.0mm 1998
    Driest on record 0.0mm 2023

  13. Onslow Year To Date

    Average Rainfall To Nov 299.3mm 32.9 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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