Greater Sydney Dam Levels
Greater Sydney catchment rainfall, total storage and water supply
HOW MUCH RAIN HAVE WE HAD?
4.6MM
14.2MM FOR THE LAST WEEK
HOW MUCH WATER IS IN OUR DAMS?
94%
Weekly change of -0.1%
HOW MUCH WATER HAVE WE USED?
1,590ML
11,127ML FOR THE LAST WEEK
We’re the people taking care of the state’s water at the source – capturing, storing, delivering. Learn more about WaterNSW.
Greater Sydney dam levels data
WaterNSW has prepared or collected the data on this website with all due care and endeavours to provide accurate and up-to-date information including near real-time water monitoring data. Any mistakes in this information that are brought to our attention will be corrected as soon as possible. This site is not exhaustive.
Learn more about our Water Monitoring network.
Read our full disclaimer.
- Avon Dam
90%
- Cataract Dam
83%
- Cordeaux Dam
79%
- Nepean Dam
86%
- Prospect Reservoir
82%
- Tallowa Dam
100%
- Woronora Dam
92%
Prospect Reservoir
82%3.9%
CAPACITY
33,330 ML
VOLUME
27,219 ML
Rainfall totals
GREATER SYDNEY AVERAGE
24HRS TO 9AM
4.6 MM
PAST WEEK
14.2 MM
PAST YEAR
985 MM
Warragamba Catchment
24HRS TO 9AM
2.8 MM
PAST WEEK
11.4 MM
PAST YEAR
921 MM
Nepean Catchment
24HRS TO 9AM
3.8 MM
PAST WEEK
27.6 MM
PAST YEAR
1,204 MM
Woronora Catchment
24HRS TO 9AM
7.0 MM
PAST WEEK
26.5 MM
PAST YEAR
1,333 MM
Shoalhaven Catchment
24HRS TO 9AM
7.6 MM
PAST WEEK
16.8 MM
PAST YEAR
1,056 MM
Blue Mountains Catchments
24HRS TO 9AM
6.0 MM
PAST WEEK
37.7 MM
PAST YEAR
1,277 MM
Greater Sydney rainfall data
The Greater Sydney Average is an area-weighted average rain amount which represents the total observed rain across the entire Greater Sydney Water Supply Catchment.
WaterNSW has prepared or collected the data on this website with all due care and endeavours to provide accurate and up-to-date information including near real-time water monitoring data. Any mistakes in this information that are brought to our attention will be corrected as soon as possible. This site is not exhaustive.
Learn more about our Water Monitoring network.
Read our full disclaimer.
Additional information
Learn more about how Warragamba Dam operates at times of full capacity or flood: Warragamba Dam flood operations fact sheet ( PDF, 339.07 KB)
Register for the Early Warning Network (EWN) for dam and release notifications.
Visit the Bureau of Meteorology for the latest weather forecasts and warnings.
Visit the NSW SES for flooding and severe weather warnings and advice.
WaterInsights
Easy access to everything you want to know about water resources and water management, all in one place.
Related links
WaterNSW acknowledges the traditional custodians of the lands and waters on which we work and pay our respects to all elders past, present and emerging. Learn more