Greater Sydney Dam Levels
Greater Sydney catchment rainfall, total storage and water supply
HOW MUCH RAIN HAVE WE HAD?
14.5MM
68.8MM FOR THE LAST WEEK
HOW MUCH WATER IS IN OUR DAMS?
95%
Weekly change of +1.5%
HOW MUCH WATER HAVE WE USED?
1,534ML
10,734ML FOR THE LAST WEEK
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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
98%
- Cataract Dam
100%
- Cordeaux Dam
100%
- Nepean Dam
99%
- Prospect Reservoir
95%
- Tallowa Dam
100%
- Woronora Dam
98%
Prospect Reservoir
95%1.4%
CAPACITY
33,330 ML
VOLUME
31,739 ML
Rainfall totals
GREATER SYDNEY AVERAGE
24HRS TO 9AM
14.5 MM
PAST WEEK
68.8 MM
PAST YEAR
933 MM
Warragamba Catchment
24HRS TO 9AM
13.2 MM
PAST WEEK
67.3 MM
PAST YEAR
822 MM
Nepean Catchment
24HRS TO 9AM
21.3 MM
PAST WEEK
65.1 MM
PAST YEAR
1,375 MM
Woronora Catchment
24HRS TO 9AM
16.2 MM
PAST WEEK
111.0 MM
PAST YEAR
1,432 MM
Shoalhaven Catchment
24HRS TO 9AM
15.8 MM
PAST WEEK
71.1 MM
PAST YEAR
1,052 MM
Blue Mountains Catchments
24HRS TO 9AM
2.2 MM
PAST WEEK
133.0 MM
PAST YEAR
1,450 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.
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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