Forecast
Perth (31.9554°S, 115.8586°E, 5m AMSL) set as my default location ›
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My MLA
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Current condition
TODAY12° 27° Chance of rain: 5% Likely amount: < 1mm First
lightLast light Sunrise Sunset 5:48am WST 6:12am WST 6:10pm WST 6:34pm WST NOW21.7° Feels Like: 18.6° Relative Humidity: 36% Dew: 6.0° Wind: S 11km/h Gust: 15km/h Rainfall since 9am: 0.0mm Pressure: 1018.8hPa -
Today Weather
PerthNow20.4°cFeels Like:17.3°Wind:SW 19km/hGusts:20km/hHumidity:57%12°Min27°MaxToday in PerthClear. Winds SW 15 to 20 km/h becoming light in the evening.Tomorrow11°Min24°MaxSunny. Light winds becoming S 20 to 30 km/h in the middle of the day then tending SE 15 to 25 km/h in the evening. -
Radar
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Popup Radar
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Warnings
There are no current warnings for Perth
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7 day forecast
Today: Clear. Winds SW 15 to 20 km/h becoming light in the evening.
Forecast for Perth (31.9554°S, 115.8586°E, 5m AMSL) Tue Wed Thu Fri Sat Sun Mon Summary Minimum 12° 11° 10° 9° 9° 10° 12° Maximum 27° 24° 23° 21° 21° 23° 21° Chance of rain 5% 5% 5% 5% 5% 40% 40% Likely amount < 1mm < 1mm < 1mm < 1mm < 1mm < 1mm 1-5mm UV index Very High Very High Very High High High High High Fire Danger Rating No Rating Moderate Moderate Moderate 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 19
(km/h)17
(km/h)11
(km/h)25
(km/h)19
(km/h)20
(km/h)16
(km/h)28
(km/h)13
(km/h)22
(km/h)10
(km/h)24
(km/h)19
(km/h)32
(km/h)Wind direction NE WSW SSE SW ESE SSW SSE SW SSE SW SE SW SSW SW Relative humidity 34% 18% 62% 41% 65% 39% 62% 43% 65% 44% 63% 43% 68% 49% Dew point 5°C 1°C 10°C 9°C 9°C 8°C 7°C 7°C 8°C 8°C 9°C 9°C 10°C 9°C -
28 Day Rainfall forecast
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12 Month Rainfall Forecast
Perth Rain Forecast
Perth 12-month Rainfall ForecastSepOctNovDecJanFebMarAprMayJunJulAug20242025457789641255105012 - 34 - 78 - 910Well below normalBelow normalNear normalAbove normalWell above normalIssue Notes - Issued Sep 9
ENSO status: La Niña Watch. IOD status: Neutral. SAM status: Neutral. Favouring negative. The El Niño Southern Oscillation (ENSO) is in a La Niña Watch, meaning there is approximately a 50% chance of a La Niña developing this year. Overall, models are now starting to look more like La Niña, with more widespread ocean cooling occurring in the South Pacific, and the 30-day SOI now above +7. While these are good signs that La Nina is starting to develop, a declaration would likely happen no earlier than November, meaning this is more likely to be a late and weaker event if it does eventuate. A La Niña typically increases rainfall over northern and southeastern Australia during spring, but has little effect for southwestern WA. The Indian Ocean Dipole (IOD) is in a neutral phase and is now unlikely to develop into either phase this spring. Conditions are closer to a positive IOD than to a negative phase, so there may be some minor reductions in the frequency of northwest cloudbands impacting Australia. A neutral IOD tends to bring a small increase in spring rainfall for southwest WA, but has little effect elsewhere. The Southern Annular Mode (SAM) is now neutral, having recovered from the initial sudden Stratospheric Warming (SW) event over Antarctica in mid-July. However, another SW event is occurring in mid September that may further dampen the polar vortex. These events increase the chances of negative SAM events during September and October. A negative SAM increases the frequency of cold fronts. During spring, this increases rainfall over western Tas and southern Vic, but decreases rainfall over eastern Australia. Rainfall outlooks are showing close to average for most of the country during September and October, with a higher chance of above average rainfall for northern and eastern Australia from November. Models are also hinting that rainfall is more likely to arrive in the form of showers and thunderstorms, rather than broad rainbands, meaning rainfall in practice will likely be hit-and-missfor most of Australia this spring.
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Popup - Daily historical
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Long range rainfall forecast
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Past 5 Days
Perth Past 5 Days
This MonthMinimum Maximum Rainfall Friday
Sep 1311.8 °C 28.4 °C 0.0 mmSaturday
Sep 1413.7 °C 26.2 °C 0.0 mmSunday
Sep 1512.3 °C 24.3 °C 0.0 mmMonday
Sep 1612.2 °C 24.0 °C 0.0 mmTuesday
Sep 178.1 °C 28.3 °C 0.0 mmLegend -
Almanac
Almanac
Perth minimum temp history (31.9554°S, 115.8586°E, 5m AMSL) MAXIMUM TEMPERATURE MINIMUM TEMPERATURE Hottest this month 28.4° 13/09/2024 Coldest this month 7.1° 02/09/2024 Hottest on record 34.2 20/09/2014 Coldest on record 1.0 22/09/2008 Hottest this year 42.9° 18/02/2024 Coldest this year 3.3° 04/08/2024 Long term average 20.6° Long term average 9.7° Average this month 22.6° Average this month 11.3° Hottest September On Record Avg. max. temp. 22.5° 2015 Coldest September on record Avg. min. temp. 7.6° 2016 Perth rainfall history (31.9554°S, 115.8586°E, 5m AMSL) RAINFALL Wettest This Month 14.0mm 05/09/2024 Total This Month 26.4mm
5.0 daysLong Term Average 80.6mm 14.4 days Wettest September on record 144.2mm 2013 Driest on record 31.4mm 2019 -
Year to Date
Perth Year To Date
Average Rainfall To Sep 648.8mm 90.2 day(s) Total For 2024 539.0mm 85.0 day(s) Total To This Day 2023 583.0mm 89.0 day(s) Wettest Day 44.0mm Jul18 Lowest Temperature 3.3°C Aug 4 Highest Temperature 42.9°C Feb18 -
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Popup - Monthly historical
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Climatology
Climate History
Perth Climatology
Perth Long-Term Averages
Long-Term Averages Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann Mean Max (°C) 31.4 31.7 29.6 26.0 22.4 19.5 18.5 19.1 20.6 23.4 26.7 29.5 24.8 Mean Min (°C) 18.1 18.4 16.9 13.8 10.5 8.7 8.1 8.3 9.7 11.6 14.4 16.5 12.9 Mean Rain (mm) 16.7 13.1 20.0 35.9 86.2 127.1 147.0 122.2 80.6 38.6 24.7 9.5 722.3 Mean Rain Days 2.6 2.4 4.6 6.8 11.0 14.8 17.8 15.8 14.4 8.9 5.6 3.3 107.7