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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 11:10 WST

    PAST 24 HOURS

    33.3 °C

    Feels like 26.7 °C
    Dew Point
    9.4 °C
    Gusts
    39km/h
    Relative Humidity
    23%
    Pressure
    1017.4hPa
    Wind
    NE 33km/h
    Rainfall
    0.0mm

    Onslow Airport

    Thevenard Island

    Barrow Island

    Mardie

    Onslow Wednesday Forecast

    Windy
    Windy
    21 °C
    35 °C
    5%
    < 1mm
    Onslow for Wednesday
    Sunny. Winds E/SE 30 to 45 km/h. Daytime maximum temperatures 29 to 36.
    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: Sunny. Winds E/SE 30 to 45 km/h. Daytime maximum temperatures 29 to 36.

    Forecast for Onslow (21.6363°S, 115.1124°E, 3m AMSL)
      Wed Thu Fri Sat Sun Mon Tue
    Summary Windy Sunny Sunny Mostly sunny Mostly sunny Mostly cloudy Mostly sunny
    Minimum 21° 22° 20° 20° 19° 20° 20°
    Maximum 35° 34° 33° 34° 35° 35° 36°
    Chance of rain 5% 5% 5% 5% 5% 5% 5%
    Likely amount < 1mm < 1mm < 1mm < 1mm < 1mm < 1mm < 1mm
    UV index High High High Very High Very High Very High Very High
    Fire Danger Rating High Moderate Moderate Moderate - - -
    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 28
    (km/h)     		31
    (km/h)     		22
    (km/h)     		24
    (km/h)     		18
    (km/h)     		27
    (km/h)     		16
    (km/h)     		22
    (km/h)     		20
    (km/h)     		19
    (km/h)     		21
    (km/h)     		18
    (km/h)     		19
    (km/h)     		21
    (km/h)
    Wind direction E NE E NNE ESE NNE SSE NNW SSE NW SE N ESE N
    Relative humidity 34% 36% 29% 26% 43% 35% 53% 38% 47% 36% 47% 32% 47% 32%
    Dew point 12°C 15°C 9°C 10°C 13°C 14°C 16°C 16°C 13°C 16°C 14°C 14°C 15°C 15°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 First quarter Full moon Last quarter New moon
    6:14am WST 6:37am WST 5:57pm WST 6:20pm WST 9:12am WST 8:03pm WST Waxing crescent First quarter May 04 Full moon May 13 Last quarter May 20 New moon May 27

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  9. Tides graph

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  11. Onslow Past 5 Days

    This Month
    Minimum Maximum Rainfall
    Saturday
    Apr 26     		22.7 °C 32.5 °C
    0.0 mm
    Sunday
    Apr 27     		24.4 °C 33.3 °C
    0.0 mm
    Monday
    Apr 28     		21.0 °C 33.0 °C
    0.0 mm
    Tuesday
    Apr 29     		21.8 °C 33.7 °C
    0.0 mm
    Wednesday
    Apr 30     		19.9 °C 33.7 °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 42.2° 09/04/2025 Coldest this month 21.0° 28/04/2025
    Hottest on record 43.4 01/04/1970 Coldest on record 11.8 28/04/1968
    Hottest this year 45.7° 03/03/2025 Coldest this year 21.0° 28/04/2025
    Long term average 34.0° Long term average 21.6°
    Average this month 35.8° Average this month 24.6°
    Hottest April On Record Avg. max. temp. 37.7° 2016 Coldest April on record Avg. min. temp. 18.7° 1946
    Onslow rainfall history (21.6363°S, 115.1124°E, 3m AMSL)
    RAINFALL
    Wettest This Month 3.4mm 21/04/2025 Total This Month 3.6mm
    2.0 days
    Long Term Average 13.7mm 2.3 days Wettest April on record 163.4mm 1970
    Driest on record 0.0mm 2023

  13. Onslow Year To Date

    Average Rainfall To Apr 173.2mm 13.9 day(s)
    Total For 2025 224.0mm 21.0 day(s)
    Total To This Day 2024 24.2mm 7.0 day(s)
    Wettest Day 78.0mm Jan20
    Lowest Temperature 21.0°C Apr28
    Highest Temperature 45.7°C Mar 3

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  2. Warnings

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