Adelaide Braces for a Sizzling Sunday: Clear Skies and Highs of 35°C Predicted

Sunday Heatwave Hits the City

Adelaide residents should prepare for a significant rise in temperatures today, Sunday, 15 February 2026, as a warm air mass settles over the metropolitan area. Following a relatively mild evening, the mercury is expected to climb rapidly, making it one of the warmer days of the month so far. Clear skies and light winds will dominate the landscape, providing perfect conditions for outdoor activities, provided residents take the necessary precautions against the mid-February sun.

Morning: A Bright and Early Start

The day began with clear, crisp conditions and a minimum temperature hovering around 18°C to 21°C in the early hours. As the sun rose, the city saw a rapid transition from the morning cool to a bright, clear start. By 9:00 AM, temperatures are already pushing into the mid-20s. Humidity levels remain moderate at around 50%, though this is expected to drop as the day progresses and the heat intensifies. For those planning a morning walk along the River Torrens or a trip to the local markets, the early hours will be the most comfortable window of the day.

Afternoon: Peak Temperatures and High UV

The afternoon will see the peak of today’s heat, with the Bureau of Meteorology predicting a maximum of 35°C for the city center. Inland suburbs may see slightly higher figures as the afternoon sun peaks. Skies will remain mostly sunny with only a few scattered, high-level clouds offering minimal respite from the glare. The UV index is expected to reach extreme levels, common for this time of year in South Australia, necessitating high-level sun protection. Fortunately, there are no rain warnings in place, with the chance of precipitation sitting at a negligible 5%.

Evening: A Slow Cool Down

As the sun begins to set, the heat will linger, with temperatures staying in the high 20s well into the evening. Conditions will remain partly cloudy to clear, with humidity dropping to approximately 32%. A light southerly breeze may offer some relief to coastal areas like Glenelg and Henley Beach, though the city basin will likely retain much of the day's warmth. Nighttime lows are expected to settle back down to a comfortable 19°C, providing a relatively pleasant end to a scorching Sunday.

Key Weather Summary

• Maximum Temperature: 35°C
• Minimum Temperature: 18°C
• Rainfall: 0mm (5% chance)
• Conditions: Mostly sunny and clear throughout the day.
• Warnings: No official wind or rain warnings are active, though extreme UV levels require sun safety.