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 21°C.
Water Temperature in Wallaga Lake: Daily Trends, Historical Records, and Forecast
✅ Lake water between 20 and 25°C offers very comfortable swimming conditions for most people. Combined with warm air temperatures and calm weather, this range is ideal for extended swims and family activities. Because lakes lack strong currents, the water often feels gentler and warmer than rivers. Even with light cloud cover, swimming remains enjoyable.
Water Temperature Over the Last 30 Days
Water temperatures in Wallaga Lake 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 Wallaga Lake will be 18.7°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 |
|---|---|---|---|
| Mar 12 | 22.0°C | 19.7°C | |
| Mar 13 | 22.0°C | 19.7°C | |
| Mar 14 | 21.7°C | 19.7°C | |
| Mar 15 | 21.3°C | 19.7°C | |
| Mar 16 | 21.1°C | 19.7°C | |
| Mar 17 | 21.1°C | 19.7°C | |
| Mar 18 | 20.3°C | 19.7°C | |
| Mar 19 | 20.7°C | 19.7°C | |
| Mar 20 | 20.7°C | 19.7°C | 20.7°C |
| Mar 21 | 19.7°C | 20.4°C | |
| Mar 22 | 19.7°C | 20.1°C | |
| Mar 23 | 19.7°C | 19.8°C | |
| Mar 24 | 19.7°C | 19.6°C | |
| Mar 25 | 19.7°C | 19.3°C | |
| Mar 26 | 19.7°C | 19.0°C | |
| Mar 27 | 19.7°C | 18.7°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.