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Local Weather

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 13:30 WST

    PAST 24 HOURS

    27.5 °C

    Feels like 21.2 °C
    Dew Point
    9.3 °C
    Gusts
    44km/h
    Relative Humidity
    32%
    Pressure
    1015.9hPa
    Wind
    S 32km/h
    Rainfall
    0.0mm

    Onslow Airport

    Thevenard Island

    Barrow Island

    Mardie

    Onslow Monday Forecast

    Mostly sunny
    Mostly sunny
    18 °C
    29 °C
    5%
    < 1mm
    Onslow for Monday
    Mostly sunny. Slight chance of a shower in the SE, near zero chance elsewhere. Winds SE/SW 20 to 30 km/h. Daytime maximum temperatures 25 to 34.
    Fire Danger
    Moderate
    DAM LEVELS

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  4. Onslow 48 HOUR FORECAST

    TEMP WIND RAIN CHANCE

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  6. 7 day forecast

    Today: Mostly sunny. Slight chance of a shower in the SE, near zero chance elsewhere. Winds SE/SW 20 to 30 km/h. Daytime maximum temperatures 25 to 34.

    Forecast for Onslow (21.6363°S, 115.1124°E, 3m AMSL)
      Mon Tue Wed Thu Fri Sat Sun
    Summary Mostly sunny Sunny Sunny Sunny Sunny Mostly sunny Mostly sunny
    Minimum 18° 15° 16° 17° 19° 19° 20°
    Maximum 29° 30° 31° 32° 32° 30° 32°
    Chance of rain 5% 5% 5% 5% 5% 5% 5%
    Likely amount < 1mm < 1mm < 1mm < 1mm < 1mm < 1mm < 1mm
    UV index Very High Very High Very High Very High Extreme Extreme Extreme
    Fire Danger Rating Moderate 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 33
    (km/h)     		29
    (km/h)     		29
    (km/h)     		16
    (km/h)     		22
    (km/h)     		21
    (km/h)     		25
    (km/h)     		20
    (km/h)     		23
    (km/h)     		20
    (km/h)     		14
    (km/h)     		24
    (km/h)     		15
    (km/h)     		19
    (km/h)
    Wind direction SSW SW SSE SW S NNW SSE WNW SE N E N ESE NNW
    Relative humidity 48% 34% 41% 26% 29% 33% 32% 30% 36% 41% 56% 48% 49% 37%
    Dew point 12°C 11°C 8°C 8°C 5°C 11°C 7°C 11°C 11°C 15°C 17°C 16°C 16°C 13°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 New moon First quarter Full moon Last quarter
    5:54am WST 6:17am WST 6:14pm WST 6:36pm WST 1:15am WST 12:01pm WST Waning crescent New moon Sep 22 First quarter Sep 30 Full moon Oct 07 Last quarter Oct 14

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  9. Tides graph

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  11. Onslow Past 5 Days

    This Month
    Minimum Maximum Rainfall
    Thursday
    Sep 11     		15.6 °C 29.0 °C
    0.0 mm
    Friday
    Sep 12     		16.0 °C 29.7 °C
    0.0 mm
    Saturday
    Sep 13     		16.0 °C 32.4 °C
    0.0 mm
    Sunday
    Sep 14     		19.2 °C 29.6 °C
    0.0 mm
    Monday
    Sep 15     		19.5 °C 28.7 °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 32.4° 13/09/2025 Coldest this month 14.1° 07/09/2025
    Hottest on record 40.0 30/09/2015 Coldest on record 8.4 01/09/1943
    Hottest this year 45.7° 03/03/2025 Coldest this year 9.1° 26/07/2025
    Long term average 30.3° Long term average 15.7°
    Average this month 28.9° Average this month 16.7°
    Hottest September On Record Avg. max. temp. 32.8° 2015 Coldest September on record Avg. min. temp. 13.2° 1943
    Onslow rainfall history (21.6363°S, 115.1124°E, 3m AMSL)
    RAINFALL
    Wettest This Month 3.6mm 06/09/2025 Total This Month 3.8mm
    2.0 days
    Long Term Average 1.6mm 1.1 days Wettest September on record 24.7mm 1970
    Driest on record 0.0mm 2021

  13. Onslow Year To Date

    Average Rainfall To Sep 295.5mm 31.6 day(s)
    Total For 2025 279.8mm 46.0 day(s)
    Total To This Day 2024 93.6mm 31.0 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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