Perth climate

Perth Weather in July

NASA POWER reanalysis for the half-degree grid cell around Perth, 1991-2020; a grid cell is an area average and can differ from a thermometer in town by several degrees

Average highs run from 16°C on July 1 to 17°C on July 31, and lows from 9°C to 10°C. Normal precipitation for the month is 102 mm over about 19 wet days.

July day by day

The normal high and low for each date, in °C.

Normal daily high and low temperature at Perth, in °C, with the record for each date.051015202530151015202530
  • Normal low
  • Normal high
  • Reanalysis extreme high
  • Reanalysis extreme low

July at a glance

Average high
17°C
Average low
9°C
Precipitation
102 mm
Reanalysis high
25°CJul 11, 2005
Reanalysis low
3°CJul 12, 1993
Daylight
17 h 37 min to 16 h 11 min
Cloud cover
79%
Humidity
86%
Dew point
11°C
Wind
14.4 km/h

Every day of the month

A wet day has at least 1 mm of precipitation in the reanalysis.

DateNormal highNormal lowReanalysis highReanalysis lowChance wet
Jul 116°C9°C24°C 20095°C 199561%
Jul 216°C9°C24°C 20093°C 199261%
Jul 316°C9°C21°C 20094°C 199562%
Jul 416°C9°C22°C 20185°C 200263%
Jul 517°C9°C22°C 20064°C 199262%
Jul 617°C9°C21°C 20015°C 199861%
Jul 717°C9°C23°C 19915°C 199860%
Jul 817°C9°C23°C 19994°C 199658%
Jul 917°C9°C23°C 20134°C 200458%
Jul 1017°C9°C22°C 20134°C 199357%
Jul 1117°C9°C25°C 20054°C 199358%
Jul 1217°C9°C23°C 20133°C 199358%
Jul 1317°C9°C21°C 20134°C 199358%
Jul 1417°C9°C21°C 20036°C 201659%
Jul 1517°C9°C21°C 20065°C 199859%
Jul 1617°C9°C22°C 20035°C 200059%
Jul 1717°C9°C23°C 20063°C 200059%
Jul 1817°C9°C23°C 20135°C 199358%
Jul 1917°C9°C24°C 20166°C 200459%
Jul 2017°C9°C21°C 20005°C 200160%
Jul 2117°C9°C21°C 19975°C 202062%
Jul 2217°C9°C22°C 20145°C 201563%
Jul 2317°C9°C22°C 20196°C 201164%
Jul 2417°C9°C23°C 20145°C 201564%
Jul 2517°C9°C25°C 20196°C 201165%
Jul 2617°C10°C23°C 20065°C 199964%
Jul 2717°C10°C23°C 20186°C 199364%
Jul 2817°C10°C21°C 20087°C 200363%
Jul 2917°C10°C21°C 19955°C 200763%
Jul 3017°C10°C24°C 19954°C 201563%
Jul 3117°C10°C24°C 20206°C 201262%

Chance of rain

The chance of at least 1 mm of precipitation in the reanalysis on each date at Perth, in percent.0204060801102030
  • Chance of a wet day

Sunrise and sunset

Times for 2026, local time (GMT+1).

July 1
sunrise 4:29 AM, sunset 10:06 PM
July 31
sunrise 5:14 AM, sunset 9:25 PM

Every day of July: sun and moon

Other months

Sources

Cloud, humidity, wind and sunshine, and temperature and precipitation: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.