Georges River – current river water temperature and swimming conditions
This page shows the current river water temperature at Georges 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 Georges River today is 12°C.
Water Temperature in Georges 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 Georges 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 Georges River will be 11.2°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 | 12.0°C | 11.0°C | |
| Aug 16 | 12.1°C | 11.0°C | |
| Aug 17 | 11.7°C | 11.0°C | |
| Aug 18 | 11.7°C | 11.0°C | |
| Aug 19 | 11.7°C | 11.0°C | |
| Aug 20 | 11.8°C | 11.0°C | |
| Aug 21 | 12.1°C | 11.0°C | |
| Aug 22 | 12.2°C | 11.0°C | |
| Aug 23 | 12.3°C | 11.0°C | 12.3°C |
| Aug 24 | 11.0°C | 12.1°C | |
| Aug 25 | 11.0°C | 12.0°C | |
| Aug 26 | 11.0°C | 11.8°C | |
| Aug 27 | 11.0°C | 11.7°C | |
| Aug 28 | 11.0°C | 11.5°C | |
| Aug 29 | 11.0°C | 11.3°C | |
| Aug 30 | 11.0°C | 11.2°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 | 24°C | 27°C |
| February | 20°C | 24°C | 27°C |
| March | 18°C | 22°C | 24°C |
| April | 14°C | 18°C | 21°C |
| May | 10°C | 14°C | 17°C |
| June | 9°C | 11°C | 13°C |
| July | 8°C | 10°C | 12°C |
| August | 9°C | 11°C | 14°C |
| September | 11°C | 14°C | 18°C |
| October | 14°C | 18°C | 22°C |
| November | 18°C | 21°C | 25°C |
| December | 20°C | 23°C | 26°C |
Location & Local Information
Source Upland swamps, O'Hares Creek
• location east of Appin in Macarthur
• coordinates 34°15′00″S 150°49′48″E
• elevation 350 m (1,150 ft)
Mouth Botany Bay
• location Taren Point/Sans Souci
• coordinates 34.0066940°S 151.1421598°E
Length 96 km (60 mi)
The Georges River flows through southern Sydney, winding past bushland, sandstone cliffs, and urban suburbs before reaching Botany Bay. Water temperature in the river varies noticeably through the year. In summer, temperatures typically sit around 20–24°C, feeling warm enough for swimming, especially in sheltered bays and upstream sections. Spring and autumn are milder, with the river usually ranging between 16–20°C, which can still be comfortable on sunny days. During winter, the water cools to roughly 12–15°C, giving it a brisk edge that tends to limit swimming to short dips rather than long stays.
Swimming Conditions
Swimming in the Georges River is generally allowed, but conditions depend heavily on location and recent weather. Upstream areas with less tidal influence and good water circulation are the most popular for recreational swimming, particularly within bushland reserves. These spots often have calmer water and better overall water quality. In contrast, lower sections closer to the estuary can be affected by tides, boat traffic, and reduced clarity. After heavy rainfall, runoff can temporarily lower water quality and temperature, so swimming is best avoided then. In settled summer conditions, however, the Georges River provides a convenient and refreshing freshwater swimming option within the Sydney region, especially for those seeking a quieter alternative to ocean beaches.