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Perth Weather in May
Perth in May sees moderate temperatures, with highs around 18°C (64°F) and overnight lows of 4°C (39°F). Rainfall is fairly high at around 102 mm (4 in) on average, so pack waterproofs just in case.
Rainfall in Perth in May
Historically, the month has about 13 days of rain, averaging 102 mm (4 in) in total. Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.
Temperature in Perth in May
May in Perth brings moderate temperatures, with highs of 18°C (64°F) and nights around 4°C (39°F). A light jacket or extra layer can be useful, especially outside the warmest hours of the day. Nights drop to 4°C (39°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet.If your ideal day consists of dry skies and pleasant temperatures, June, July, August and September typically offer the best circumstances for Perth.
Perth Temperature in May
Min Temperature
4°C (39°F)
Max Temperature
18°C (64°F)
Chance of Rain
43%
Precipitation
102 mm (4 in)
Rainy days
13 days
Perth Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Perth - and find the best time to visit.
Best Places in Canada in May
Find out more about the weather in Canada and which places have the best travel conditions in this month. See all of Canada in May →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Perth in May
Pleasant temperatures in May mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Prepare for significant rainfall with proper waterproof clothing and shoes.
What To Do in Perth in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling5/10 -
Walking5/10 -
Camping3/10 -
Outdoor sports9/10
Perth 3-Day Forecast
More climate data for Perth
See the full Perth climate overview or explore weather in Canada.
Popular in May
Where to go in May - average daytime high across popular destinations.
Niagara Falls
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