Sun, Humidity, and Coastal Breezes: A Mild Saturday for the Illawarra

A Mild and Humid Start to the Weekend

Residents of Wollongong can expect a pleasant yet humid start to their weekend as we close out the first month of 2026. This Saturday, 31 January, will see a mix of clear skies and building clouds, providing a classic coastal summer atmosphere for the Illawarra. While the temperatures are predicted to remain within a comfortable range, the significant humidity levels will likely make the air feel thicker than the thermometer suggests, requiring a bit more hydration for those planning to be active outdoors.

Morning: Clear Skies and Rising Temperatures

The day is set to begin with clear conditions across the city and surrounding suburbs. Early risers heading out to North Wollongong Beach or the Blue Mile for a morning stroll will enjoy a mild start, with the mercury hovering around 21 degrees Celsius. Winds will remain relatively light during the early hours, coming primarily from the northeast, which is typical for this time of year. As the morning progresses, the cloud cover is expected to transition into a partly cloudy state, though the sun will still dominate much of the first half of the day, offering plenty of opportunities for outdoor weekend markets and sporting events.

Afternoon: Peak Heat and Humidity Factors

By the afternoon, Wollongong will reach its predicted maximum temperature of 28 degrees Celsius. While this is a moderate peak compared to the sweltering conditions currently being felt further inland, local humidity will be a defining feature of the day. Forecasts indicate humidity levels could reach as high as 79 to 91 percent during peak hours. This moisture-rich air will likely push the "feels like" temperature higher, making physical activities feel more strenuous than usual. The northeasterly coastal breeze will provide some relief to those near the shoreline, but the inland suburbs may find the air quite still and muggy.

Evening: Cloud Cover and Potential Showers

As we head into the evening, the skies will remain partly cloudy. There is a slight 20 percent chance of isolated showers or a brief thunderstorm clipping the region, particularly as a trough moves across southern New South Wales. While no major rain alerts are currently in place for the city centre, the broader South Coast and areas west of the ranges have been placed on watch for potential gusty thunderstorms. For those attending late-night events or coastal gatherings, temperatures will slowly dip back toward the overnight low of 21 degrees Celsius. It is recommended to keep a light eye on the horizon for any sudden shifts in wind direction that might signal a localized cell passing through the area.

Summary and Daily Stats

• Minimum Temperature: 21 degrees Celsius
• Maximum Temperature: 28 degrees Celsius
• Rainfall: 20 percent chance of light showers or late thunderstorms
• Humidity: Very high, peaking around 80-90 percent
• Winds: Generally northeasterly, becoming gusty near storm cells

With high humidity and moderate UV levels expected throughout the day, residents are encouraged to stay hydrated and apply sun protection if spending extended periods outdoors. While the risk of severe weather remains low for the immediate Wollongong area today, the potential for late-day gusts means it is a day for cautious enjoyment of the coastal outdoors.