UV index at 11.9 in Perth means extreme risk; limit outdoor time from 10 a.m. to 4 p.m., use shade, protective clothing, SPF 30+ sunscreen, and sunglasses; watch for bright surfaces like water and snow increasing UV exposure.
Read more here about the climate and sun exposure in and around Perth.
The UV index in Perth, Australia is generally high due to its location under the ozone hole. During the summer months (December to February), the UV index often reaches extreme levels, with values between 10 to 15+. It is crucial to take appropriate precautions, such as wearing sunscreen, sunglasses, and hats, and seeking shade during peak UV hours from 10 am to 4 pm.
Perth experiences a Mediterranean climate with distinct seasons. From December to February, it is summer with average temperatures ranging from 24 °C to 31 °C (75 °F to 88 °F). Autumn (March to May) brings mild temperatures between 16 °C to 24 °C (61 °F to 75 °F). Winter (June to August) sees cooler temperatures ranging from 9 °C to 18 °C (48 °F to 64 °F), while spring (September to November) brings pleasant temperatures of 14 °C to 23 °C (57 °F to 73 °F).
Compared to other areas in its region, Perth has a higher sun exposure due to its location in Western Australia. The city receives an average of 8-9 hours of sunshine per day throughout the year. This is considerably higher than nearby cities like Melbourne and Sydney. It is important to stay sun-safe in Perth and be aware of the high sun exposure, particularly during the summer months.
The chart above displays the Shortwave Radiation Sum (MJ/m²) for each day of the last year in Perth. It's designed to provide you with a better understanding of the yearly weather and sun exposure.