Forecast
Williamstown (34.6706°S, 138.8902°E, 282m AMSL) set as my default location ›
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My MLA
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Current condition
TODAY8° 15° mostly cloudy Chance of rain: 20% Likely amount: < 1mm First
lightLast light Sunrise Sunset 6:21am CST 6:47am CST 5:37pm CST 6:03pm CST NOW7.7° Feels Like: 4.1° Relative Humidity: 96% Dew: 7.1° Wind: S 15km/h Gust: 17km/h Rainfall since 9am: 0.0mm Pressure: 1027.5hPa -
Today Weather
WilliamstownNow5.8°cFeels Like:4.6°Wind:N 0km/hGusts:0km/hHumidity:91%8°Min15°MaxToday in WilliamstownCloudy. Slight chance of a shower in the S, near zero chance elsewhere. Light winds becoming S 15 to 20 km/h in the early afternoon then becoming light in the late afternoon. Overnight temperatures falling to between 6 and 11 with daytime temperatures reaching between 15 and 18.Tomorrow6°Min17°MaxPartly cloudy. Light winds. Overnight temperatures falling to between 5 and 9 with daytime temperatures reaching between 16 and 19. -
Radar
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Popup Radar
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Warnings
There are no current warnings for Williamstown
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7 day forecast
Today: Cloudy. Slight chance of a shower in the S, near zero chance elsewhere. Light winds becoming S 15 to 20 km/h in the early afternoon then becoming light in the late afternoon. Overnight temperatures falling to between 6 and 11 with daytime temperatures reaching between 15 and 18.
Forecast for Williamstown (34.6706°S, 138.8902°E, 282m AMSL) Fri Sat Sun Mon Tue Wed Thu Summary Minimum 8° 6° 9° 11° 6° 6° 6° Maximum 15° 17° 20° 16° 14° 14° 14° Chance of rain 20% 5% 5% 20% 20% 30% 40% Likely amount < 1mm < 1mm < 1mm < 1mm < 1mm < 1mm < 1mm UV index Moderate Moderate Moderate Moderate Moderate Moderate Moderate 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 11
(km/h)12
(km/h)14
(km/h)9
(km/h)14
(km/h)18
(km/h)16
(km/h)21
(km/h)25
(km/h)25
(km/h)26
(km/h)23
(km/h)23
(km/h)21
(km/h)Wind direction SE SSW ENE NW N WNW SSW SSW SSE SSE SE SSE SSE SSE Relative humidity 85% 55% 76% 44% 53% 35% 81% 62% 74% 50% 81% 54% 81% 54% Dew point 7°C 6°C 6°C 4°C 4°C 4°C 10°C 8°C 3°C 4°C 5°C 5°C 5°C 5°C -
28 Day Rainfall forecast
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12 Month Rainfall Forecast
Williamstown Rain Forecast
Williamstown 12-month Rainfall ForecastAprMayJunJulAugSepOctNovDecJanFebMar20242025447556687687105012 - 34 - 78 - 910Well below normalBelow normalNear normalAbove normalWell above normalIssue Notes - Issued Apr 23
ENSO status: Inactive/Neutral. El Niño ended. IOD status: Neutral, becoming strongly positive. SAM status: Leading to neutral and returning positive. The El Niño Southern Oscillation (ENSO) is presently in an inactive phase, for the first time since August 2021. Ocean cooling continues over the eastern Pacific Ocean as sea surface temperatures approach near-normal conditions. Warmer than normal waters are present across the western Pacific Ocean, including the Coral Sea with added moisture and humidity to influence weather conditions in the eastern regions of Australia. The atmosphere continues to be firmly neutral after weakening early in the year with 3 out of 7 global models forecasting a La Niña to develop this coming winter season. A neutral ENSO typically has no significant impact on Australian rainfall during winter. The Indian Ocean Dipole (IOD) is in a neutral phase, although record-high ocean temperatures across the northwest Indian Ocean have the IOD index just tipping into a positivethreshold value. Persistent southeasterly winds over the eastern Indian Ocean during the previous month are forecast to ease with below-average wind speeds to develop off northwest Australia and the eastern Indian Ocean during the winter season. All international models are suggesting the IOD will strengthen into a strong positive phase over the next 2-3 months, with significant upwelling to start near Indonesia possibly following May. A positive IOD reduces the number of northwest cloudbands that cross Australia during winter and spring, thus reducing rainfall across central and southeastern parts of Australia. The Southern Annular Mode (SAM) is currently positive (mid-April) with the outlook favouring a neutral phase forecast in May and then the likelihood of returning to a positive phase during winter. A positive SAM increases easterly winds, increasing rainfall and thunderstorm activity in the east. A positive SAM also reduces the impact of cold fronts and decreases the rainfall over southernAustralia. Rainfall outlooks are showing above-average rainfall over winter for WA and central and northern SA, and eastern regions of QLD and NSW. Conversely, below-average rainfall is expected for western TAS, southern SA, and most of VIC.
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Popup - Daily historical
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Long range rainfall forecast
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Past 5 Days
Williamstown Past 5 Days
This MonthMinimum Maximum Rainfall Sunday
Apr 216.1 °C 21.7 °C 0.4 mmMonday
Apr 229.1 °C 24.2 °C 0.0 mmTuesday
Apr 2315.3 °C 23.7 °C 0.0 mmWednesday
Apr 246.5 °C 13.8 °C 0.0 mmThursday
Apr 256.7 °C 16.7 °C 0.0 mmLegend -
Almanac
Almanac
Williamstown minimum temp history (34.6706°S, 138.8902°E, 282m AMSL) MAXIMUM TEMPERATURE MINIMUM TEMPERATURE Hottest this month 24.2° 22/04/2024 Coldest this month 6.1° 21/04/2024 Hottest on record 34.8 02/04/2005 Coldest on record 1.2 26/04/1997 Hottest this year 37.8° 23/01/2024 Coldest this year 6.1° 21/04/2024 Long term average 19.5° Long term average 10.6° Average this month 18.5° Average this month 8.6° Hottest April On Record Avg. max. temp. 22.9° 2005 Coldest April on record Avg. min. temp. 8.0° 1999 Williamstown rainfall history (34.6706°S, 138.8902°E, 282m AMSL) RAINFALL Wettest This Month 1.6mm 09/04/2024 Total This Month 5.8mm
9.0 daysLong Term Average 43.4mm 10.9 days Wettest April on record 141.6mm 2007 Driest on record 1.4mm 1997 -
Year to Date
Williamstown Year To Date
Average Rainfall To Apr 119.0mm 29.6 day(s) Total For 2024 52.6mm 22.0 day(s) Total To This Day 2023 146.4mm 41.0 day(s) Wettest Day 28.8mm Jan 7 Lowest Temperature 6.1°C Apr21 Highest Temperature 37.8°C Jan23 -
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Popup - Monthly historical
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Climatology
Climate History
Williamstown Climatology
Williamstown Long-Term Averages
Long-Term Averages Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann Mean Max (°C) 27.7 27.0 23.6 19.5 14.8 11.7 11.2 12.4 15.3 18.4 22.3 25.1 19.0 Mean Min (°C) 13.9 13.9 12.3 10.6 8.5 6.5 5.9 6.1 7.3 8.4 10.6 12.1 9.7 Mean Rain (mm) 25.1 24.2 26.3 43.4 71.4 91.5 99.7 90.7 72.9 48.1 38.3 32.6 657.4 Mean Rain Days 5.4 4.9 8.4 10.9 15.6 18.0 19.0 18.0 16.1 12.5 9.7 8.1 145.3