Bomaderry – water temperature at Shoalhaven River
This page provides up-to-date information about the water temperature at Bomaderry, located on the Shoalhaven 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 Shoalhaven River at Bomaderry today is 13°C.
Water Temperature in Shoalhaven River at Bomaderry: Daily Trends, Historical Records, and Forecast
⚠️ River water between 10 and 15°C is cold but manageable for short swims, especially on sunny days with warm air temperatures. The moving nature of a river can make the water feel colder than the actual reading, particularly in shaded or deeper sections. Casual swimming is usually brief, with wetsuits often preferred. Windy or cool weather can significantly reduce comfort, even when the air temperature is mild.
Water Temperature Over the Last 30 Days
Water temperatures in Bomaderry have been on a steady rise over the past month and have continued to climb over the last week.
According to our forecast, the water temperature in Bomaderry will be 12.1°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 |
|---|---|---|---|
| Aug 15 | 12.1°C | 12.0°C | |
| Aug 16 | 12.3°C | 12.0°C | |
| Aug 17 | 11.9°C | 12.0°C | |
| Aug 18 | 11.9°C | 12.0°C | |
| Aug 19 | 11.8°C | 12.0°C | |
| Aug 20 | 12.0°C | 12.0°C | |
| Aug 21 | 12.5°C | 12.0°C | |
| Aug 22 | 12.8°C | 12.0°C | |
| Aug 23 | 12.8°C | 12.0°C | 12.8°C |
| Aug 24 | 12.0°C | 12.7°C | |
| Aug 25 | 12.0°C | 12.6°C | |
| Aug 26 | 12.0°C | 12.5°C | |
| Aug 27 | 12.0°C | 12.4°C | |
| Aug 28 | 12.0°C | 12.3°C | |
| Aug 29 | 12.0°C | 12.2°C | |
| Aug 30 | 12.0°C | 12.1°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 | 20°C | 24°C | 27°C |
| February | 19°C | 23°C | 28°C |
| March | 17°C | 21°C | 25°C |
| April | 14°C | 19°C | 22°C |
| May | 11°C | 15°C | 20°C |
| June | 9°C | 13°C | 16°C |
| July | 8°C | 11°C | 13°C |
| August | 10°C | 12°C | 14°C |
| September | 12°C | 15°C | 18°C |
| October | 15°C | 18°C | 22°C |
| November | 18°C | 20°C | 24°C |
| December | 20°C | 23°C | 26°C |
Location & Local Information
Bomaderry sits on the upper tidal reaches of the Shoalhaven River, where freshwater from inland catchments mixes with coastal influence. Water temperatures here follow the South Coast seasons closely. In summer, from December to February, the river around Bomaderry is typically around 20–24°C, sometimes feeling a bit warmer in sheltered backwaters during heatwaves. Spring and autumn are mild and pleasant, with water temperatures generally in the 16–20°C range. Winter is cooler but not extreme, usually sitting around 12–15°C, especially in shaded sections or after cold nights. Rainfall and releases upstream can temporarily cool the water and affect how it feels day to day.
Swimming Conditions
Swimming in the Shoalhaven River at Bomaderry is allowed and does take place, particularly in summer when the weather warms up. The water temperature is usually comfortable enough for a proper swim rather than just a quick dip. Locals tend to choose calmer stretches and familiar access points where the current is gentler. That said, conditions can change after heavy rain, with stronger flows and reduced visibility. Being a tidal section, boat traffic and changing currents also need to be considered. With settled weather and sensible spot selection, swimming around Bomaderry can be refreshing and enjoyable.