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Derby (17.3048°S, 123.6325°E, 10m AMSL) set as my default location ›

  2. Derby Local Weather

    17.3°S, 123.63°E
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    Now in Derby

    Updated at 12:00 WST

    PAST 24 HOURS

    32.1 °C

    Feels like 35.1 °C
    Dew Point
    22.8 °C
    Gusts
    11km/h
    Relative Humidity
    58%
    Pressure
    1008.3hPa
    Wind
    SW 11km/h
    Rainfall
    0.0mm

    Derby

    Curtin

    Yampi Sound (Defence)

    Lombadina

    Derby Wednesday Forecast

    Possible shower
    Possible shower
    27 °C
    37 °C
    60%
    1-5mm
    Derby for Wednesday
    Partly cloudy. Medium chance of showers, most likely in the afternoon and evening. The chance of a thunderstorm. Winds NW/NE 15 to 20 km/h tending NE/SE in the middle of the day then tending NW/NE in the late afternoon. Daytime maximum temperatures 35 to 42.
    Fire Danger
    No Rating
    DAM LEVELS

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  4. Derby 48 HOUR FORECAST

    TEMP WIND RAIN CHANCE

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  6. 7 day forecast

    Today: Partly cloudy. Medium chance of showers, most likely in the afternoon and evening. The chance of a thunderstorm. Winds NW/NE 15 to 20 km/h tending NE/SE in the middle of the day then tending NW/NE in the late afternoon. Daytime maximum temperatures 35 to 42.

    Forecast for Derby (17.3048°S, 123.6325°E, 10m AMSL)
      Wed Thu Fri Sat Sun Mon Tue
    Summary Possible shower Possible shower Mostly sunny Late shower Possible shower Possible shower Possible thunderstorm
    Minimum 27° 26° 26° 26° 26° 26° 26°
    Maximum 37° 38° 37° 36° 36° 37° 37°
    Chance of rain 60% 50% 30% 50% 50% 60% 90%
    Likely amount 1-5mm 1-5mm 1-5mm 10-20mm 5-10mm 1-5mm 5-10mm
    UV index Extreme Extreme Extreme Extreme Extreme Extreme Extreme
    Fire Danger Rating No Rating No Rating No Rating No Rating - - -
    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)     		27
    (km/h)     		11
    (km/h)     		26
    (km/h)     		12
    (km/h)     		24
    (km/h)     		11
    (km/h)     		22
    (km/h)     		12
    (km/h)     		21
    (km/h)     		14
    (km/h)     		20
    (km/h)     		11
    (km/h)     		24
    (km/h)
    Wind direction NNW NNW WSW NNW NW NW W NW SW N SSW NNW SSW NNE
    Relative humidity 75% 58% 62% 60% 64% 59% 65% 67% 68% 62% 69% 59% 70% 65%
    Dew point 25°C 25°C 24°C 26°C 24°C 25°C 25°C 26°C 25°C 26°C 25°C 25°C 25°C 26°C

  7. Sunrise and sunset times

    Sunrise / Sunset for Derby (17.3048°S, 123.6325°E, 10m AMSL)
    First light Sunrise Sunset Last light Moon rise Moon set Moon phase Last quarter New moon First quarter
    4:40am WST 5:04am WST 6:12pm WST 6:36pm WST 11:07pm WST 10:10am WST Waning gibbous Last quarter Dec 12 New moon Dec 20 First quarter Dec 28

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  9. Tides graph

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  11. Derby Past 5 Days

    This Month
    Minimum Maximum Rainfall
    Saturday
    Dec 06     		26.7 °C 40.1 °C
    0.0 mm
    Sunday
    Dec 07     		28.6 °C 38.1 °C
    0.0 mm
    Monday
    Dec 08     		28.3 °C 39.3 °C
    0.0 mm
    Tuesday
    Dec 09     		21.3 °C 36.1 °C
    34.6 mm
    Wednesday
    Dec 10     		26.7 °C 32.4 °C
    0.0 mm
    Legend

  12. Almanac

    Derby minimum temp history (17.3048°S, 123.6325°E, 10m AMSL)
    MAXIMUM TEMPERATURE MINIMUM TEMPERATURE
    Hottest this month 41.4° 05/12/2025 Coldest this month 21.3° 09/12/2025
    Hottest on record 44.9 01/12/2011 Coldest on record 18.5 12/12/1978
    Hottest this year 42.1° 18/10/2025 Coldest this year 7.5° 02/07/2025
    Long term average 37.4° Long term average 26.3°
    Average this month 39.0° Average this month 25.4°
    Hottest December On Record Avg. max. temp. 39.3° 1972 Coldest December on record Avg. min. temp. 25.4° 1974
    Derby rainfall history (17.3048°S, 123.6325°E, 10m AMSL)
    RAINFALL
    Wettest This Month 34.6mm 09/12/2025 Total This Month 45.4mm
    3.0 days
    Long Term Average 84.1mm 7.7 days Wettest December on record 350.6mm 2016
    Driest on record 0.0mm 1956

  13. Derby Year To Date

    Average Rainfall To Dec 716.3mm 53.6 day(s)
    Total For 2025 926.0mm 70.0 day(s)
    Total To This Day 2024 438.4mm 53.0 day(s)
    Wettest Day 153.2mm Mar29
    Lowest Temperature 7.5°C Jul 2
    Highest Temperature 42.1°C Oct18

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  2. Warnings

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