Bibra Lake – current water temperature and swimming conditions

This page provides information about the current water temperature at Bibra Lake in Western Australia. 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

19.2°C

Today

18.9°C

Yesterday

19.8°C

A Week Ago

The water temperature in Bibra Lake today is 19°C.

Water Temperature in Bibra Lake: 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

Over the past 30 days, water temperatures in Bibra Lake have generally increased, although a slight cooling trend has set in over the last week.

According to our forecast, the water temperature in Bibra Lake will be 20.6°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
Oct 7	19.6°C	21.0°C
Oct 8	19.0°C	21.0°C
Oct 9	19.8°C	21.0°C
Oct 10	19.1°C	21.0°C
Oct 11	19.8°C	21.0°C
Oct 12	19.8°C	21.0°C
Oct 13	19.5°C	21.0°C
Oct 14	18.9°C	21.0°C
Oct 15	19.2°C	21.0°C	19.2°C
Oct 16		21.0°C	19.4°C
Oct 17		21.0°C	19.6°C
Oct 18		21.0°C	19.8°C
Oct 19		21.0°C	20.0°C
Oct 20		21.0°C	20.2°C
Oct 21		21.0°C	20.4°C
Oct 22		21.0°C	20.6°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	21°C	21°C
February	21°C	21°C	21°C
March	21°C	21°C	21°C
April	21°C	21°C	21°C
May	21°C	21°C	21°C
June	21°C	21°C	21°C
July	21°C	21°C	21°C
August	21°C	21°C	21°C
September	21°C	21°C	21°C
October	21°C	21°C	21°C
November	21°C	21°C	21°C
December	21°C	21°C	21°C

Location & Local Information

Bibra Lake sits within Perth’s southern suburbs and is a shallow freshwater wetland influenced by seasonal rainfall and the local Mediterranean climate. Water temperature varies through the year and responds quickly to air temperature because the lake is shallow. In summer, the water can warm to around 20–25°C, sometimes feeling quite warm during extended hot spells. Spring and autumn are milder, usually sitting between 16–20°C. In winter, temperatures commonly drop to about 12–15°C, giving the lake a cool feel, especially after cold nights or periods of rain. Because the lake is shallow, temperatures can fluctuate noticeably over short periods.

Swimming Conditions

Swimming in Bibra Lake is not recommended. Although summer water temperatures may seem suitable, the lake is not managed as a recreational swimming area. Water quality can be variable due to urban runoff, nutrient levels, and occasional algal growth, particularly in warmer months. The lake is also an important habitat for birdlife and other wildlife, and human swimming is discouraged to protect the ecosystem. After rainfall, conditions often worsen, with reduced clarity and cooler water. Overall, Bibra Lake is best appreciated as a natural wetland and green space rather than a swimming destination, with its seasonal water temperatures noted but swimming avoided in favour of safer, designated waterways elsewhere in the Perth region.

Nearby Lakes

Frequently Asked Questions

What is the current water temperature in Bibra Lake?

The water temperature in Bibra Lake today is 19°C.

What is the water temperature in Bibra Lake during the summer months?

In summer, water temperatures in Bibra Lake typically range from 21°C to 21°C.

Is it possible to swim in Bibra Lake (Western Australia)?

Yes — people do swim in Bibra Lake, particularly in the warmer months, though water temperatures and conditions can vary and will be noticeably cooler outside summer. Always check local signage and City of Cockburn or WA Health advisories for water quality and algal‑bloom warnings before swimming, and avoid entering the lake after heavy rain or when a warning is posted.