Wallaga Lake – current water temperature and swimming conditions
This page provides information about the current water temperature at Wallaga Lake in New South Wales. Here you can view recent temperature trends on a 30-day chart, check typical monthly water temperature ranges, and compare today’s reading with historical averages for this date. A 7-day water temperature forecast, local weather conditions, and an overview of swimming suitability are also included.
Current Water Temperature
The water temperature in Wallaga Lake today is 12°C.
Water Temperature in Wallaga Lake: Daily Trends, Historical Records, and Forecast
⚠️ Lake temperatures between 10 and 15°C are cold but can be manageable for short swims on sunny, warm days. Shallow areas may feel slightly warmer, while deeper sections remain cold and slow to warm up. Most swimmers keep sessions brief, and wetsuits are often used for comfort. Wind and cooler air temperatures can quickly reduce how pleasant the swim feels.
Water Temperature Over the Last 30 Days
Over the last 30 days, water temperatures in Wallaga Lake have trended upward, with conditions remaining relatively stable over the past week.
According to our forecast, the water temperature in Wallaga Lake will be 10.3°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 | 10.0°C | |
| Aug 16 | 12.0°C | 10.0°C | |
| Aug 17 | 12.0°C | 10.0°C | |
| Aug 18 | 12.0°C | 10.0°C | |
| Aug 19 | 12.0°C | 10.0°C | |
| Aug 20 | 12.0°C | 10.0°C | |
| Aug 21 | 12.0°C | 10.0°C | |
| Aug 22 | 12.0°C | 10.0°C | |
| Aug 23 | 12.0°C | 10.0°C | 12.0°C |
| Aug 24 | 10.0°C | 11.8°C | |
| Aug 25 | 10.0°C | 11.5°C | |
| Aug 26 | 10.0°C | 11.3°C | |
| Aug 27 | 10.0°C | 11.0°C | |
| Aug 28 | 10.0°C | 10.8°C | |
| Aug 29 | 10.0°C | 10.5°C | |
| Aug 30 | 10.0°C | 10.3°C |
* Current - Actual water temperature value
** Average - Average water temperature on this day in recent years
*** Forecast - Our water temperature forecast
Actual lake water temperatures may differ from the reported values by several degrees, particularly during periods of strong winds or rapid weather changes. Wind can mix surface and deeper layers in a lake, bringing cooler water to the surface, while shallow areas may warm more quickly under direct sunlight. Air temperature, sunshine, and cloud cover strongly influence how quickly a lake heats up or cools down. These factors can lead to noticeable temperature variations across different parts of the lake.
Our forecast is based on a proprietary mathematical model that considers real-time lake temperature observations, historical trends, seasonal cycles, wind strength and direction, and region-specific air temperature. To enhance accuracy, we also incorporate data from nearby monitored locations and comparable lakes within Australia.
Monthly Water Temperature Range (Min, Max & Average)
| Month | Today | Yesterday | A Week Ago |
|---|---|---|---|
| January | 22°C | 23°C | 24°C |
| February | 21°C | 23°C | 25°C |
| March | 18°C | 20°C | 22°C |
| April | 13°C | 18°C | 21°C |
| May | 10°C | 13°C | 18°C |
| June | 8°C | 10°C | 11°C |
| July | 8°C | 9°C | 10°C |
| August | 8°C | 10°C | 12°C |
| September | 12°C | 14°C | 16°C |
| October | 14°C | 17°C | 20°C |
| November | 17°C | 20°C | 21°C |
| December | 19°C | 21°C | 24°C |
Location & Local Information
Wallaga Lake is a large coastal lagoon on the far south coast of New South Wales, sheltered from the open ocean and influenced mainly by local weather and seasonal change. Water temperatures here are moderate and fairly steady through the year. In summer, the lake usually warms to around 22–25°C, feeling comfortably warm and well suited to swimming. Spring and autumn tend to sit in the 18–22°C range, which is still pleasant on sunny days. During winter, water temperatures commonly drop to about 14–18°C, cool but not extreme, especially compared with the nearby ocean, which is often colder and rougher.
Swimming Conditions
Swimming in Wallaga Lake is generally allowed and enjoyed in suitable, calm areas, particularly during the warmer months. The lake is mostly protected from swell and has gentle conditions, with little current away from the entrance channel. Shallow shorelines make access easy, which suits relaxed swimming and casual dips. Water quality is usually good in settled weather, though after heavy rain the lake can become cooler and slightly murky due to runoff, and swimming is often postponed until conditions improve. Overall, Wallaga Lake offers reliable seasonal swimming with moderate water temperatures, providing a quiet and sheltered alternative to ocean beaches for those looking to swim in calmer, more predictable conditions.