Myall Lakes – current water temperature and swimming conditions

This page provides information about the current water temperature at Myall Lakes 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

14.5°C

Today

14.9°C

Yesterday

15.4°C

A Week Ago

The water temperature in Myall Lakes today is 15°C.

Water Temperature in Myall Lakes: 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

Water temperatures in Myall Lakes 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 Myall Lakes will be 13.6°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
Jun 13	15.2°C	13.5°C
Jun 14	15.2°C	13.5°C
Jun 15	15.4°C	13.5°C
Jun 16	15.4°C	13.5°C
Jun 17	15.3°C	13.5°C
Jun 18	15.2°C	13.5°C
Jun 19	15.1°C	13.5°C
Jun 20	14.9°C	13.5°C
Jun 21	14.5°C	13.5°C	14.5°C
Jun 22		13.5°C	14.4°C
Jun 23		13.5°C	14.3°C
Jun 24		13.5°C	14.1°C
Jun 25		13.5°C	14.0°C
Jun 26		13.5°C	13.9°C
Jun 27		13.5°C	13.8°C
Jun 28		13.5°C	13.6°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	21°C	22°C	24°C
February	22°C	22°C	23°C
March	19°C	22°C	25°C
April	15°C	20°C	24°C
May	11°C	16°C	21°C
June	9°C	14°C	17°C
July	8°C	12°C	16°C
August	9°C	14°C	19°C
September	11°C	17°C	22°C
October	11°C	19°C	25°C
November	17°C	19°C	21°C
December	20°C	21°C	22°C

Myall Lakes: Water Temperature by Location

One Horse Sands

New South Wales

15.4°C

Shelly Beach

New South Wales

15.4°C

Bungwahl

New South Wales

15.0°C

Location & Local Information

Myall Lakes is a chain of large freshwater lakes on the Mid North Coast of New South Wales, surrounded by national park and bushland. Water temperature across the lakes follows the local coastal climate and varies gently through the seasons. In summer, the lakes usually warm to around 22–26°C, feeling comfortably warm and ideal for swimming. Spring and autumn are slightly cooler, generally sitting between 18–22°C, which still suits swimming on sunny days. During winter, water temperatures tend to drop to about 14–18°C, cool but not extreme, especially compared with inland lakes further south.

Swimming Conditions

Swimming in Myall Lakes is allowed and widely enjoyed, particularly in sheltered bays and near sandy shorelines where access is easy and the water is calm. The lakes are mostly shallow with little current, creating safe and relaxed conditions for casual swimming and floating. Water quality is generally good, especially during dry periods, as the lakes are largely freshwater and protected from heavy development. After prolonged rain, the water can become cooler and slightly tannin-stained, though this does not usually prevent swimming once conditions settle. Overall, Myall Lakes offer reliable and pleasant swimming opportunities for much of the year, combining moderate water temperatures with quiet, natural surroundings well away from crowded ocean beaches.

Nearby Lakes

Frequently Asked Questions

What is the current water temperature in Myall Lakes?

The water temperature in Myall Lakes today is 15°C.

What is the water temperature in Myall Lakes during the summer months?

In summer, water temperatures in Myall Lakes typically range from 20°C to 24°C.

Is it possible to swim in Myall Lakes (New South Wales)?

Yes — the Myall Lakes are predominantly freshwater and are popular for swimming and paddling, with water often pleasantly warm in summer but quite cool through autumn and winter. Be mindful of boat traffic, submerged vegetation and stronger currents near the lake mouths and ocean entrances, and always check local safety signage and water‑quality advisories before you get in.