Perth Weather in May
In May, Perth averages a high of 22°C (71°F) and a low of 12°C (54°F), based on 21 years of historical weather data from PERTH REGIONAL OFFICE.
22°C
Average high
71°F
12°C
Average low
54°F
32°C
Record high
89°F · 1980
5°C
Record low
41°F · 1971
What to Expect in Perth in May
Typical May days in Perth reach 22°C (71°F) during the afternoon and cool to around 12°C (54°F) overnight. On average, measurable rain falls on about 42% of days this month. Over the past 21 years, May temperatures in Perth have ranged from a record high of 32°C (1980) down to a record low of 5°C (1971).
For a day-by-day look or other months, see the full Perth weather history.