Climate averages 1991–2020

Mandurah weather
in July.

A mild, wet month: the coolest and one of the wettest of the year.

Long-term climate patterns, not a forecast for a particular trip.

Average high 16.4°C Daytime mean, July

Average low 9.9°C Night-time mean, July

Rainfall 111 mm 13 days with ≥1 mm

Daylight 10 h Sunrise to sunset, per day

July is a mild month in Mandurah: daytime highs average 16.4°C and nights cool to about 9.9°C. By daytime temperature it is the coolest month of the year.

Expect about 111 mm of rain on roughly 13 days, which makes July a wet month (one of the wettest months of the year). Daylight, from sunrise to sunset, lasts about 10 h 14 min on an average July day.

The nearest other city in this atlas is Perth (65 km away). In July its highs average 16.7°C, about as warm as Mandurah, with 102 mm of rain.

Among the 32 cities listed in Australia, Mandurah ranks joint 15th of 32 for the warmest July highs and 31st of 32 for the driest July (rainfall, lowest first). The mean July high of those 32 cities is 16.5°C; Mandurah is 0.1°C cooler than that mean.

From July to August, average highs rise by 0.4°C to 16.8°C, and monthly rainfall falls from 111 mm to 96 mm.

The annual picture

July in context

30-year average

Average highAverage low°C

Monthly rainfall

Average total · mm

Averages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated

Every month, side by side

Mandurah climate table

1991–2020

Monthly climate averages for Mandurah, 1991–2020
Month	Average highHigh / low	Average low	Rainfall mm/month	Rain days ≥1 mm/day	Daylight hours/dayDaylight h/day
January	30.2°C18.2°C	18.2°C	12	1.4	14.014 h
February	30.3°C18.5°C	18.5°C	16	1.4	13.313 h
March	28.1°C17.3°C	17.3°C	18	2.5	12.312 h
April	24.3°C15.1°C	15.1°C	25	4.3	11.311 h
May	20.5°C12.6°C	12.6°C	73	8.1	10.510 h
June	17.5°C10.9°C	10.9°C	111	11.2	10.010 h
July, selected	16.4°C9.9°C	9.9°C	111	13.0	10.210 h
August	16.8°C9.8°C	9.8°C	96	11.5	10.911 h
September	17.8°C10.4°C	10.4°C	64	9.1	11.912 h
October	20.9°C12.0°C	12.0°C	29	5.0	12.913 h
November	24.6°C14.5°C	14.5°C	23	4.1	13.814 h
December	28.0°C16.5°C	16.5°C	12	1.9	14.214 h

Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.

Compare places

July in nearby cities

Distance from Mandurah

Read the numbers correctly

Climate, not a promise.

These patterns help compare months. They cannot tell you the weather on a specific day of your trip.

Sources, method and limits

How these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Mandurah) is explained once on the Mandurah year overview and on the Sources, method and limits page.