Climate averages 1991–2020

Mandurah weather
in January.

A hot, very dry month: the 2nd warmest and one of the driest of the year.

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

Average high 30.2°C Daytime mean, January

Average low 18.2°C Night-time mean, January

Rainfall 12 mm 1 day with ≥1 mm

Daylight 14 h Sunrise to sunset, per day

January is a hot month in Mandurah: daytime highs average 30.2°C and nights cool to about 18.2°C. By daytime temperature it is the 2nd warmest of the 12 months.

Expect about 12 mm of rain on roughly 1 day, which makes January a very dry month (one of the driest months of the year). Daylight, from sunrise to sunset, lasts about 14 h 01 min on an average January day.

The nearest other city in this atlas is Perth (65 km away). In January its highs average 31.2°C, 1.0°C warmer than Mandurah, with 17 mm of rain.

Among the 32 cities listed in Australia, Mandurah ranks 5th of 32 for the warmest January highs and 2nd of 32 for the driest January (rainfall, lowest first). The mean January high of those 32 cities is 27.2°C; Mandurah is 3.0°C warmer than that mean.

From January to February, average highs rise by 0.1°C to 30.3°C, and monthly rainfall rises from 12 mm to 16 mm.

The annual picture

January 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, selected	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	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

January 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.