The Bureau has retired the Monthly Water Update. You can find information about rainfall, streamflow, stream salinity and storages in the Bureau's Water Information, Water Data Online, Australian Water Outlook, Drought statement and Climate Summaries. If you have questions or feedback about this retirement, please contact

Monthly Water Update

small map representing the district South East Coast (NSW)

South East Coast (NSW)

December 2022 Summary

Rainfall was lower than average across 82 per cent of the area, spread throughout the drainage division. Total rainfall was 46 mm, 54 per cent lower than the long-term mean of 101 mm for December.

Streamflows were average or higher than average for 95 per cent of the sites. Hunter River at Liddell had the fourth highest streamflow for December since 1980.

Median streamflow salinity (electrical conductivity) varied between sites from 354 to 5 605 μS/cm. Streamflows were high quality for 12 per cent of the sites and brackish for 38 per cent of the sites. Bayswater Creek at Liddell had the highest salinity of all sites.

During December, storage volumes decreased in three systems and remained stable in three. By the end of the month, the volume of water stored was 99 per cent of the total accessible capacity, which is six percentage points higher than the previous year.

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map visualising rainfall details


map visualising streamflow details

Streamflow salinity

map visualising salinity details

Water storages

map visualising storage details


map visualising rainfall details for South East Coast (NSW)

Rainfall statistics

Rainfall decile group Percentage of area
Highest on record since 1900 0%
Very much above average 0%
Above average 0%
Average 18%
Below average 61%
Very much below average 21%
Lowest on record since 1900 0%

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