Monthly weather overview

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A quick, year-round overview of monthly and seasonal weather in Perth. Use this page to get a feel for which months and seasons match your travel style.

Perth weather at a glance

  • Perth has a **Mediterranean** climate: summers (Dec–Feb) are hot and dry, while winters (Jun–Aug) are mild but notably wetter.
  • Perceived heat depends a lot on direct sun vs shade and coastal breezes.
  • Summer often brings many clear days—great for outdoor plans—while heat, UV, and dryness become the main variables.
  • In winter, comfort is often shaped more by rain and wind than by deep cold.
  • Packing works best when you plan for midday sun exposure, cooler evenings, and winter rain.
Dec · Jan · Feb

Summer (hot + dry): lots of sun, strong UV and heat exposure

Avg low 18–20°C / high 30–32°C · Rainy days: 1–3 / ~5–20 mm

  • Dry air can hide dehydration even when sweat evaporates quickly.
  • Midday sun can feel intense; shade often improves comfort.
  • Nights can feel noticeably cooler.

Suggested outfits

  • · Breathable clothing
  • · Optional hat/sunscreen
  • · Optional thin evening layer

A note for travelers

In summer, water and shade planning often matters more than the exact forecast number.

Mar · Apr · May

Autumn (transition): easing heat with cooler evenings, and more rain later

Avg low 12–17°C / high 22–29°C · Rainy days: 3–8 / ~20–90 mm (often higher in May)

  • March can still feel summer-like.
  • By May, rain increases and evenings feel cooler.
  • Layers become consistently useful.

Suggested outfits

  • · Light clothing + thin jacket
  • · Optional umbrella

A note for travelers

Autumn often feels warm by day and cool at night—pack for both.

Jun · Jul · Aug

Winter (mild + wet): frequent rain, with wind-driven chill

Avg low 8–10°C / high 17–19°C · Rainy days: 10–15 / ~120–180 mm

  • Cloudier and wetter weeks are common.
  • Wind can make it feel colder than expected.
  • Staying dry improves comfort a lot.

Suggested outfits

  • · Jacket/coat + layers
  • · Optional waterproof/umbrella

A note for travelers

Winter discomfort is often about wet wind, not extreme cold.

Sep · Oct · Nov

Spring (warming): improving weather, drier later, stronger sun

Avg low 10–15°C / high 20–27°C · Rainy days: 4–9 / ~20–80 mm (Sep can still be showery)

  • Outdoor-friendly days increase.
  • September can still be a bit showery; October–November trend drier.
  • UV and sun exposure become more noticeable again.

Suggested outfits

  • · Light clothing + thin layer
  • · Optional sunscreen/sunglasses

A note for travelers

Late spring can feel very sunny and dry—plan around midday exposure.

Want detailed monthly weather?

Pick a month below to see detailed average temperatures, rainfall, outfit ideas, and travel tips.

Explore Perth

These pages are connected so you can compare conditions and decide for yourself.

Perth monthly weather overview — seasons & best time to visit | CityWeather | CityWeather