Clouds Blanket the Capital as Perth Enjoys a Mild March Reprieve

A Shift in the Seasons

Perth residents can expect a noticeable change in the atmosphere this Friday, March 13, 2026. Following a period of intense early-March heat that saw temperatures soaring well above the 40-degree mark, today brings a welcome reprieve. A high-pressure ridge building over the southwest of Western Australia has ushered in a much milder air mass, replacing the desert heat with a more temperate coastal flow. While the sun will still make appearances, the defining feature of today's weather will be a persistent layer of cloud cover that will keep the city significantly cooler than in recent days.

Morning: A Crisp and Cloudy Start

The day began with a minimum temperature of 17°C, providing a refreshing start for early commuters. Sunrise occurred at 6:14 AM under relatively clear skies, but cloud cover has increased rapidly through the mid-morning hours. Humidity is currently sitting around 48%, making the air feel light and comfortable. As the morning progresses, temperatures will climb steadily toward the low 20s. There is no immediate threat of precipitation for those heading out early, though the increasing cloud density suggests a dimming of the bright morning light typical of a Perth autumn.

Afternoon: Peak Temperatures and Coastal Breezes

The mercury is expected to reach a maximum of 25°C this afternoon, a sharp contrast to the scorching conditions experienced earlier in the week. The sky will remain mostly cloudy throughout the middle of the day, which will help suppress the UV index to a moderate level of 3. Despite the overcast conditions, the Bureau of Meteorology indicates only a slim 10% chance of a stray shower, meaning most suburbs will remain completely dry. The afternoon will be characterized by fresh southerly to south-easterly winds reaching speeds of approximately 25 kilometres per hour (16 mph). These breezes will be particularly noticeable along the coastal fringe, providing a cool draft for those visiting the metropolitan beaches.

Evening: Clearing Skies and Cooling Off

As we head toward sunset at 6:37 PM, the thick cloud deck is expected to begin breaking up. This transition will lead to a mostly clear Friday evening, ideal for outdoor dining or late-night strolls. Temperatures will drop back toward 20°C shortly after dusk, eventually settling at a low of 17°C overnight. Humidity levels are expected to rise slightly as the temperature falls, reaching roughly 61% by midnight. No severe weather warnings or wind alerts are currently in place for the Greater Perth area, ensuring a calm end to the working week.

Forecast at a Glance

• Maximum Temperature: 25°C
• Minimum Temperature: 17°C
• Conditions: Mostly cloudy day; clearing to a fine and clear night.
• Rainfall: 10% chance of rain; 0mm expected.
• Wind: South-easterly at 25 km/h.
• UV Index: 3 (Moderate).