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 Australian Gulf

South Australian Gulf

December 2022 Summary

Rainfall was average or higher than average across 89 per cent of the area, distributed over the centre and north. Total rainfall was 18 mm, 10 per cent lower than the long-term mean of 20 mm for December.

Streamflows were very much above average for 78 per cent of the sites. North Para River at Yaldara and South Para River 2.6km SE Gawler PO had the third highest streamflows for December since 1980.

Median streamflow salinity (electrical conductivity) varied between sites from 853 to 6 111 μS/cm. Streamflows were brackish for 50 per cent of the reporting sites. Cygnet River Upstream Koala Lodge had the highest salinity of all sites.

During December, the total storage volume of Adelaide (the only storage in the area) decreased by seven per cent. By the end of the month, the volume of water stored was 84 per cent of the total accessible capacity, which is 21 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 Australian Gulf

Rainfall statistics

Rainfall decile group Percentage of area
Highest on record since 1900 0%
Very much above average Less than 1%
Above average 22%
Average 67%
Below average 11%
Very much below average Less than 1%
Lowest on record since 1900 0%

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