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Weather in Perth for May 2026

Your guide to Perth weather in May - trends and predictions

    Snow Forecast ❄️

  • Snowfall in Perth during May is quite rare, with fewer than 2 snowy days on average.
    According to Perth snow forecast for May 2026, 1 snowy day is expected at the beginning of May at Thursday, 7 May.

    • Temperatures

  • The forecast for the first days of May 2026 in Perth predicts temperatures to be around 11 °C, close to the historical average.

  • In general, the average temperature in Perth at the beginning of May is 11.9 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 15.3 °C by the end of May.

    • Rain 🌧️

  • Perth in May brings notable rainfall, with an average of 16 rainy days and a total precipitation of 81.8 mm.

    • More

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
15
Dry days
Average rainy days
16
Rainy days
Average snowy days
0
Snow days
Average temperatures
16°/7°
Temperatures
Average wind speed
17 km/h
Avg max wind
Average humidity
79 %
Avg humidity

Perth Weather May

Move between months or click on a day
April
June
Mon.Tue.Wed.Thu.Fri.Sat.Sun.
1
Patchy rain possible
19°
2
Patchy rain possible
16°
3
Patchy rain possible
8°
4
Partly cloudy
13°
5
Patchy rain possible
9°
6
Moderate rain
10°
7
Patchy rain possible
8°
8
Partly cloudy
11°
9
Patchy rain possible
12°
10
Patchy rain possible
10°
11
Patchy rain possible
11°
12
Moderate rain
9°
13
Patchy rain possible
8°
14
Light rain
15°
15
Patchy rain possible
18°
16
Thundery outbreaks possible
18°
17
Patchy light drizzle
19°
18
Patchy rain possible
19°
19
Patchy rain possible
15°
20
Patchy rain possible
16°
21
Overcast
19°
22
Light rain shower
14°
23
Light rain
14°
24
Light rain shower
15°
25
Patchy rain possible
15°
26
Light rain shower
13°
27
Light rain shower
14°
28
Light rain shower
15°
29
Light rain shower
16°
30
Light rain shower
16°
31
Patchy rain possible
18°

Temperatures trend during May in Perth

See the weather trend as well as the moving average line

May weather in Perth day by day

Click on a date for more information
April June
Date Weather Temperatures Rain Snow More
1 May Patchy rain possible
Patchy rain possible
 19° /2° 1.5 mm 0 cm
2 May Patchy rain possible
Patchy rain possible
 16° /7° 2.2 mm 0 cm
3 May Patchy rain possible
Patchy rain possible
 8° /4° 0.9 mm 0 cm
4 May Partly cloudy
Partly cloudy
 13° /1° 0 mm 0 cm
5 May Patchy rain possible
Patchy rain possible
 9° /2° 0.2 mm 0 cm
6 May Moderate rain
Moderate rain
 10° /-3° 5.8 mm 0 cm
7 May Patchy rain possible
Patchy rain possible
 8° /-1° 1.2 mm 0.2 cm
8 May Partly cloudy
Partly cloudy
 11° /-2° 0.1 mm 0 cm
9 May Patchy rain possible
Patchy rain possible
 12° /-1° 0.1 mm 0 cm
10 May Patchy rain possible
Patchy rain possible
 10° /2° 0.5 mm 0 cm
11 May Patchy rain possible
Patchy rain possible
 11° /5° 1.9 mm 0 cm
12 May Moderate rain
Moderate rain
 9° /7° 11.1 mm 0 cm
13 May Patchy rain possible
Patchy rain possible
 8° /3° 4.8 mm 0 cm
14 May Light rain
Light rain
 15° /7° 4.8 mm 0 cm
15 May Patchy rain possible
Patchy rain possible
 18° /7° 0.1 mm 0 cm
16 May Thundery outbreaks possible
Thundery outbreaks possible
 18° /7° 0.1 mm 0 cm
17 May Patchy light drizzle
Patchy light drizzle
 19° /6° 0.1 mm 0 cm
18 May Patchy rain possible
Patchy rain possible
 19° /7° 1.5 mm 0 cm
19 May Patchy rain possible
Patchy rain possible
 15° /7° 0.3 mm 0 cm
20 May Patchy rain possible
Patchy rain possible
 16° /5° 0.1 mm 0 cm
21 May Overcast
Overcast
 19° /6° 0.1 mm 0 cm
22 May Light rain shower
Light rain shower
 14° /7° 12.4 mm 0 cm
23 May Light rain
Light rain
 14° /5° 5.4 mm 0 cm
24 May Light rain shower
Light rain shower
 15° /8° 5.4 mm 0 cm
25 May Patchy rain possible
Patchy rain possible
 15° /7° 4.1 mm 0 cm
26 May Light rain shower
Light rain shower
 13° /7° 5.9 mm 0 cm
27 May Light rain shower
Light rain shower
 14° /6° 0.7 mm 0 cm
28 May Light rain shower
Light rain shower
 15° /4° 1.2 mm 0 cm
29 May Light rain shower
Light rain shower
 16° /8° 7.1 mm 0 cm
30 May Light rain shower
Light rain shower
 16° /8° 2.9 mm 0 cm
31 May Patchy rain possible
Patchy rain possible
 18° /6° 2.7 mm 0 cm
Next
Important Notice
Our weather forecast for Perth in May is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Perth forecast closer to your planned date for the most up-to-date weather information.
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Perth in May - FAQ

What are the expected maximum and minimum temperatures in Perth during May?

Enjoy moderate daytime temperatures of up to 16° and cooler nights around 7°. Ideal for a range of outdoor activities, from hiking to city tours.

How much rainfall should be expected in Perth during May?

Moderate rainfall is anticipated in Perth during May, with a total of 81.8 mm spread over approximately 16 days. Considering plans for rainy days is advisable.

What are the typical wind conditions in Perth during May?

The average wind speed in Perth during May is 17 km/h, suggesting breezy to windy conditions, depending on your activities.

Perth snow forecast May 2026

Track daily snowfall levels and discover Perth’s snowy potential this May ❄️

May rainfall patterns in Perth

Explore the daily rainfall trends and prepare for Perths May weather 💧
Typically, Perth has 16 rainy days in May with a total of 81.8 mm of rainfall.

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Location coordinates Where is Perth?

Get accurate weather forecasts for Perth, located at latitude 56.395 and longitude -3.431. Stay updated with localized weather information tailored for Perth.

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