Myall River – current river water temperature and swimming conditions
This page shows the current river water temperature at Myall River in New South Wales. You can explore recent temperature trends, typical monthly ranges, and historical averages for this date. The page also includes a 7-day water temperature forecast, local weather conditions, and an overview of how suitable the river is for swimming.
Current Water Temperature
The water temperature in Myall River today is 14°C.
Water Temperature in Myall River: 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 Myall River 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 Myall River will be 14.5°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 | 13.6°C | 14.5°C | |
| Aug 16 | 14.0°C | 14.5°C | |
| Aug 17 | 13.6°C | 14.5°C | |
| Aug 18 | 13.7°C | 14.5°C | |
| Aug 19 | 13.6°C | 14.5°C | |
| Aug 20 | 13.8°C | 14.5°C | |
| Aug 21 | 13.9°C | 14.5°C | |
| Aug 22 | 14.1°C | 14.5°C | |
| Aug 23 | 14.2°C | 14.5°C | 14.2°C |
| Aug 24 | 14.5°C | 14.2°C | |
| Aug 25 | 14.5°C | 14.3°C | |
| Aug 26 | 14.5°C | 14.3°C | |
| Aug 27 | 14.5°C | 14.4°C | |
| Aug 28 | 14.5°C | 14.4°C | |
| Aug 29 | 14.5°C | 14.4°C | |
| Aug 30 | 14.5°C | 14.5°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 | 28°C |
| February | 18°C | 23°C | 28°C |
| March | 16°C | 23°C | 26°C |
| April | 19°C | 21°C | 24°C |
| May | 15°C | 18°C | 20°C |
| June | 12°C | 14°C | 16°C |
| July | 12°C | 14°C | 15°C |
| August | 13°C | 15°C | 17°C |
| September | 16°C | 18°C | 19°C |
| October | 18°C | 21°C | 23°C |
| November | 21°C | 23°C | 25°C |
| December | 21°C | 25°C | 27°C |
Myall River: Water Temperature by Location
Location & Local Information
Source Kyle Range, Great Dividing Range
• location north northeast of Stroud
• elevation 352 m (1,155 ft)
Mouth Port Stephens
• location at Hawks Nest
• elevation 0 m (0 ft)
Length 92 km (57 mi)
The Myall River flows through wetlands, bushland, and the Myall Lakes area before reaching the coast, and its water temperature varies with both season and location along the river. In summer, the river commonly warms to around 22–26°C, particularly in sheltered stretches and near the lakes, where the water can feel pleasantly mild. During spring and autumn, temperatures usually sit between 18–22°C, offering comfortable conditions for swimming on warmer days. Winter brings cooler water, often around 12–16°C, which can feel quite fresh but is still tolerable for a quick dip, especially when the weather is fine and calm.
Swimming Conditions
Swimming in the Myall River is generally allowed and enjoyed in suitable areas, particularly where the water is slow-moving and away from strong tidal influence. The river is known for its relatively clean water, especially upstream and near the lakes, making it suitable for recreational use most of the year. However, some sections are affected by tides and can have variable currents, so swimmers usually stick to calmer spots. After heavy rainfall, water levels rise and temperatures drop, reducing comfort and safety. In stable conditions, the Myall River provides a relaxed and scenic swimming option, ideal for those looking for a quieter alternative to ocean beaches.