Perth Weather in Summer — What to Expect

Overview

Perth, Australia — summer in Perth is hot, dry, and gloriously sunny — perfect for beach days, wine regions, and the stunning Indian Ocean coastline. Whether you are planning a holiday or a business trip, understanding the weather helps you pack right and make the most of your time.

Temperature

Daytime highs reach 31°C (88°F) while nights cool to 18°C (64°F). Expect around 11 hours of sunshine per day.

Rainfall

Perth sees about 10mm of rainfall across 2 days during this period. Rain is uncommon, though a light sprinkle is not out of the question.

Humidity and Comfort

Average humidity sits at 45%. The air is pleasantly dry, making even warmer temperatures feel manageable.

What to Pack

• Lightweight breathable clothing in cotton or linen
• High-SPF sunscreen, sunglasses, and a wide-brimmed hat
• Comfortable walking shoes suited to the terrain

Best Things to Do

• Relax at Cottesloe Beach and watch the sunset over the Indian Ocean
• Ferry to Rottnest Island for snorkelling and quokka selfies
• Walk through Kings Park Botanic Garden for wildflowers and city views
• Drive to the Swan Valley for wine tastings and artisan food

Travel Tips

• Apply sunscreen every two hours — the UV index is extreme in Australian summer
• The Fremantle Doctor sea breeze arrives most afternoons and drops temperatures quickly
• Perth is remote — plan driving distances carefully if heading out of the city

Quick Summary

---

Plan your trip with the live Perth forecast on Weather Tomorrow.