Lake Ainsworth – current water temperature and swimming conditions
This page provides information about the current water temperature at Lake Ainsworth 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 Lake Ainsworth today is 16°C.
Water Temperature in Lake Ainsworth: Daily Trends, Historical Records, and Forecast
⚠️ A lake temperature of 15 to 20°C is considered cool to comfortable for swimming in Australia. On warm days with light winds, this range allows for relaxed swimming, especially in shallow or sheltered areas. Comfort depends strongly on air temperature and sunshine, as cooler or overcast weather can still make the water feel chilly. This range is common during spring and early summer.
Water Temperature Over the Last 30 Days
Water temperatures in Lake Ainsworth 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 Lake Ainsworth will be 15.6°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 | 16.1°C | 15.5°C | |
| Jun 14 | 16.0°C | 15.5°C | |
| Jun 15 | 16.1°C | 15.5°C | |
| Jun 16 | 16.0°C | 15.5°C | |
| Jun 17 | 16.0°C | 15.5°C | |
| Jun 18 | 15.9°C | 15.5°C | |
| Jun 19 | 15.7°C | 15.5°C | |
| Jun 20 | 16.0°C | 15.5°C | |
| Jun 21 | 15.8°C | 15.5°C | 15.8°C |
| Jun 22 | 15.5°C | 15.8°C | |
| Jun 23 | 15.5°C | 15.8°C | |
| Jun 24 | 15.5°C | 15.7°C | |
| Jun 25 | 15.5°C | 15.7°C | |
| Jun 26 | 15.5°C | 15.7°C | |
| Jun 27 | 15.5°C | 15.7°C | |
| Jun 28 | 15.5°C | 15.6°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 | 23°C | 27°C | 29°C |
| February | 22°C | 27°C | 29°C |
| March | 21°C | 25°C | 27°C |
| April | 17°C | 22°C | 25°C |
| May | 12°C | 18°C | 22°C |
| June | 9°C | 16°C | 18°C |
| July | 9°C | 15°C | 16°C |
| August | 10°C | 16°C | 19°C |
| September | 12°C | 19°C | 22°C |
| October | 15°C | 22°C | 25°C |
| November | 18°C | 24°C | 27°C |
| December | 21°C | 26°C | 28°C |
Location & Local Information
Lake Ainsworth is a real hidden gem tucked away in Lennox Head, right across the road from Seven Mile Beach. It’s a natural tea tree lake, which means the water is a deep, dark amber colour from the tannins leaching out of the surrounding paperbark trees. During a cracking summer, the water is an absolute treat, usually warming up to a balmy 24°C to 27°C. It’s like stepping into a giant, room-temperature cup of tea. Even when the winter chill sets in during August, the mercury rarely drops below 18°C or 20°C, staying much more inviting than the local rivers further south.
Swimming Conditions
Swimming is definitely allowed and is a legendary part of life for the locals, who swear the tea tree oil makes your skin and hair feel soft as a butter. It’s a top-notch spot for families because the water is dead calm and there are no rips to worry about, unlike the ocean just over the dunes. You’ve just got to keep your wits about you and check the Ballina Council website for any blue-green algae alerts, as the lake can sometimes get a bit of a bloom when it's been stinking hot for too long. As long as the all clear is given, it’s a ripper place to float on a lilo, have a paddle, and soak up the healing vibes of the Bundjalung country.