Cool
Average highs are around 18°C, so pack for cooler days.
July verdict
Perth, Western Australia, Australia in July
Weather score30Poor
Poor for holiday weather
Average highs are around 18°C, so pack for cooler days. Sunshine averages 5.3h per day, enough for a balanced month. Rainfall averages 169mm, so some wet days are possible.
July weather
Monthly averages
Temp
18°C
Rain
169mm
Sun
5.3h
Sea
20°C
Weather score
30
Poor
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Showers
Rainfall averages 169mm, so some wet days are possible.
Some sun
Sunshine averages 5.3h per day, enough for a balanced month.
Cool sea
Sea temperatures average 20°C, so the water can feel cool.
Map
Weather map
Compare Perth, Western Australia, Australia with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
July18°C average high
July has some of the coolest average daytime highs of the year, so pack for fresher conditions.
Warmest monthsJanuary to March and December
This stretch sets the upper range for average daytime heat.
Rain
July169mm average rain
July is one of Perth's wettest months, so rain is likely to be a major planning factor.
Driest monthsJanuary to April and October to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
July5.3 hours average sun
July is one of Perth's cloudier months, so sunshine-led plans are less reliable.
Brightest monthsJanuary to February and December
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
July20°C average sea
July is below Perth's yearly sea-temperature average, so swimming can feel fresher.
Warmest seaJanuary to May
Sea temperatures are usually near 22°C in this stretch, so swimming comfort is at its strongest.
Weather score
July30 weather score
July is one of the weakest weather-score months, when the overall mix is less favourable than the rest of the year.
Best weather monthsJanuary to March and December
These months have the strongest weather score in the monthly averages.
