Best months
April, May, and October
Warmest month
February, 32°C
Wettest month
July, 144 mm
Perth weather by month
Average daily high and low, total rainfall and days with at least 2.5 mm of rain.
| Month | High / low | Rain | Verdict |
|---|---|---|---|
| January | 32°C / 19°C | 15 mm · 1 day | Hot |
| February | 32°C / 19°C | 17 mm · 1 day | Hot |
| March | 30°C / 17°C | 18 mm · 1 day | Good |
| April | 26°C / 14°C | 40 mm · 4 days | Great |
| May | 23°C / 10°C | 77 mm · 6 days | Great |
| June | 20°C / 9°C | 114 mm · 8 days | Fair |
| July | 19°C / 8°C | 144 mm · 12 days | Wet |
| August | 20°C / 9°C | 118 mm · 10 days | Wet |
| September | 21°C / 10°C | 74 mm · 8 days | Great |
| October | 24°C / 12°C | 36 mm · 4 days | Great |
| November | 27°C / 15°C | 26 mm · 2 days | Good |
| December | 30°C / 17°C | 12 mm · 1 day | Good |
Perth by season
Spring
September to November is arguably Perth's most beautiful season. Days are warm and sunny (20-25°C), wildflowers blanket Kings Park and the surrounding hills, and the city shakes off any winter chill.
- + Perfect hiking and outdoor weather
- + Wildflower displays are spectacular
- + Less intense heat than summer
- − Can be windy, especially in the afternoons
- − Popular time for festivals and events, so accommodation books up
Summer
December to February brings hot, dry, and sunny days (often over 30°C) with low humidity. It's peak beach season, with long, bright evenings perfect for barbecues and outdoor dining.
- + Guaranteed sunshine and beach weather
- + Long daylight hours for exploring
- + Vibrant festival season (e.g., Perth Festival)
- − Can be extremely hot, with occasional heatwaves over 40°C
- − Highest tourist season, crowded beaches and attractions
Autumn
March to May offers stable, warm, and pleasant weather (20-28°C) with calm seas. The summer crowds have dissipated, but the ocean is still warm enough for swimming.
- + Mellow, comfortable temperatures
- + Great for wine tasting in the Swan Valley
- + Calm ocean conditions ideal for snorkeling and kayaking
- − Days start to get shorter
- − Rainfall begins to increase towards May
Winter
June to August is mild and wet compared to the rest of the year. Days are cool (13-18°C) with crisp, clear skies between rain showers. It's the greenest time of year.
- + Low season prices on accommodation
- + Landscape is lush and green
- + Perfect for museum-hopping and cafe culture
- − Unpredictable weather with rain and cold nights
- − Ocean is too cold for swimming for most
Perth month by month
Perth in January
HotIn January, Perth averages highs of 32°C and lows of 19°C, with about 1 rainy day and 15 mm of rain. It is hot, so plan sightseeing for mornings and evenings.
Perth in February
HotIn February, Perth averages highs of 32°C and lows of 19°C, with about 1 rainy day and 17 mm of rain. It is hot, so plan sightseeing for mornings and evenings.
Perth in March
GoodIn March, Perth averages highs of 30°C and lows of 17°C, with about 1 rainy day and 18 mm of rain. It is a good month to visit.
Perth in April
GreatIn April, Perth averages highs of 26°C and lows of 14°C, with about 4 rainy days and 40 mm of rain. It is one of the most comfortable months for sightseeing.
Perth in May
GreatIn May, Perth averages highs of 23°C and lows of 10°C, with about 6 rainy days and 77 mm of rain. It is one of the most comfortable months for sightseeing.
Perth in June
FairIn June, Perth averages highs of 20°C and lows of 9°C, with about 8 rainy days and 114 mm of rain. Expect mixed weather, with comfortable spells.
Perth in July
WetIn July, Perth averages highs of 19°C and lows of 8°C, with about 12 rainy days and 144 mm of rain. It is one of the wetter months, so keep indoor plans in reserve.
Perth in August
WetIn August, Perth averages highs of 20°C and lows of 9°C, with about 10 rainy days and 118 mm of rain. It is one of the wetter months, so keep indoor plans in reserve.
Perth in September
GreatIn September, Perth averages highs of 21°C and lows of 10°C, with about 8 rainy days and 74 mm of rain. It is one of the most comfortable months for sightseeing.
Perth in October
GreatIn October, Perth averages highs of 24°C and lows of 12°C, with about 4 rainy days and 36 mm of rain. It is one of the most comfortable months for sightseeing.
Perth in November
GoodIn November, Perth averages highs of 27°C and lows of 15°C, with about 2 rainy days and 26 mm of rain. It is a good month to visit.
Perth in December
GoodIn December, Perth averages highs of 30°C and lows of 17°C, with about 1 rainy day and 12 mm of rain. It is a good month to visit.
Top tours and experiences in Perth
The tours and tickets travellers book most, with ratings and reviews from Viator.
All things to do in Perth →
Tours and prices from Viator, a Tripadvisor company. Prices change with your dates. We may earn a commission if you book, at no extra cost to you.
Plan your Perth trip
Best time to visit Perth: FAQ
What is the best month to visit Perth?+
April is the most comfortable month on average, with highs of 26°C. October and May are close behind.
What is the rainiest month in Perth?+
July is the wettest month, with about 144 mm of rain.
How hot does Perth get?+
February is the warmest month, with average highs of 32°C and lows of 19°C. The coldest nights come in July, averaging 8°C.
Averages for 2006–2025 from the PERTH METRO weather station (4 km from the centre), NOAA Global Historical Climatology Network. Verdicts rate sightseeing comfort from daytime highs and rainy days.