Windsor – water temperature at Hawkesbury River
This page provides up-to-date information about the water temperature at Windsor, located on the Hawkesbury River in New South Wales. Here you can check current conditions, view recent temperature trends, explore typical monthly ranges, and compare today’s reading with historical averages for this date. The page also includes a 7-day water temperature forecast, local weather information, and swimming conditions.
Current Water Temperature
The water temperature in Hawkesbury River at Windsor today is 17°C.
Water Temperature in Hawkesbury River at Windsor: Daily Trends, Historical Records, and Forecast
⚠️ A river temperature of 15 to 20°C is generally considered cool to comfortable for swimming in Australia. On warm, calm days, this range allows for relaxed swimming and longer time in the water. Comfort depends heavily on air temperature and sunshine, as cooler weather can still make the water feel chilly. This range is popular for river swimming during spring and early autumn.
Water Temperature Over the Last 30 Days
Water temperatures in Windsor have been gradually cooling over the past month, with a further drop recorded during the last week.
According to our forecast, the water temperature in Windsor will be 15.9°C in the next 7 days. See the table below for daily data for the upcoming week.
Table of Daily Water Temperature Data
| Date | Current | Average | Forecast |
|---|---|---|---|
| Apr 28 | 17.5°C | 16.0°C | |
| Apr 29 | 17.4°C | 16.0°C | |
| Apr 30 | 17.3°C | 16.0°C | |
| May 1 | 17.0°C | 16.0°C | |
| May 2 | 17.0°C | 16.0°C | |
| May 3 | 16.9°C | 16.0°C | |
| May 4 | 16.9°C | 16.0°C | |
| May 5 | 16.8°C | 16.0°C | |
| May 6 | 16.6°C | 16.0°C | 16.6°C |
| May 7 | 16.0°C | 16.5°C | |
| May 8 | 16.0°C | 16.4°C | |
| May 9 | 16.0°C | 16.3°C | |
| May 10 | 16.0°C | 16.2°C | |
| May 11 | 16.0°C | 16.1°C | |
| May 12 | 16.0°C | 16.0°C | |
| May 13 | 16.0°C | 15.9°C |
* Current - Actual water temperature value
** Average - Average water temperature on this day in recent years
*** Forecast - Our water temperature forecast
Actual river water temperatures may vary by several degrees from the reported values, particularly after heavy rainfall or periods of changing weather. Rainfall, river flow rates, and runoff from cooler upstream areas can significantly affect water temperature, especially in flowing sections and shaded stretches. Air temperature and cloud cover also play an important role, with warm, sunny conditions helping rivers warm up more quickly. As a result, noticeable temperature differences can occur along the same river.
Our forecast is based on a proprietary mathematical model that takes into account real-time river temperature changes, historical data, seasonal patterns, river flow conditions, recent rainfall, and local air temperature. We also factor in broader weather conditions specific to each region of Australia to improve accuracy.
Monthly Water Temperature Range (Min, Max & Average)
| Month | Today | Yesterday | A Week Ago |
|---|---|---|---|
| January | 21°C | 27°C | 30°C |
| February | 20°C | 25°C | 28°C |
| March | 19°C | 24°C | 26°C |
| April | 16°C | 20°C | 23°C |
| May | 12°C | 16°C | 19°C |
| June | 8°C | 13°C | 15°C |
| July | 8°C | 12°C | 13°C |
| August | 8°C | 13°C | 16°C |
| September | 12°C | 17°C | 22°C |
| October | 15°C | 21°C | 25°C |
| November | 18°C | 24°C | 28°C |
| December | 20°C | 25°C | 29°C |
Location & Local Information
Windsor is a historic gem tucked along the banks of the Hawkesbury River in Greater Western Sydney, and the river is the absolute heart of the town. When it comes to the water temperature, it’s a fair dinkum treat for most of the year. During the scorching summer months, you’re looking at balmy temperatures between 23°C and 26°C, though on a real stinker of a day, the shallower parts can feel even warmer. In the winter, the mercury drops quite a bit, usually hovering between 13°C and 16°C. It’s a bit of a fresh one then, so unless you’re as tough as nails, you’d probably stick to the banks or wear a thick steamer if you’re heading in.
Swimming Conditions
Swimming is technically allowed at spots like Macquarie Park—often called Windsor Beach—but you’ve got to keep your wits about you. It’s a popular spot for a paddle because of the sandy banks, but the council often puts out warnings because the Hawkesbury is a powerful tidal river with deep drop-offs and currents that pull like a train. It’s also wise to check the Beachwatch alerts, as the water can get a bit murky or have high bacteria levels after a heavy downpour. If the river is looking a bit rough or the current is ripping, most of the locals head to the Hawkesbury Oasis in South Windsor for a worry-free soak, but on a calm day, the river is a legendary spot to cool off.