Monthly Water Update

small map representing the district South East Coast (NSW)

South East Coast (NSW)

August 2020 Summary

Rainfall was average across 65 per cent of area in the north and centre of the drainage division and higher than average across 32 per cent of the area mainly in the south. Total rainfall was 65 mm, 25 per cent higher than the long-term mean of 52 mm for August.

Streamflows were average for 42 per cent of sites, mainly in the north and higher than average (including highest on record) for 47 per cent of the sites in the centre and south. Due to high rainfall in the south, three sites - Shoalhaven River at Kadoona, Tuross River at Eurobodalla and Towamba River at Towamba - had the highest streamflows for August since 1980.

Median streamflow salinity (electrical conductivity) varied between sites from 253 to 3448 μS/cm. Streamflows were high quality for 33 per cent of the sites, fresh for 33 per cent of the sites and brackish for 22 per cent of the sites. Bayswater Creek at Liddell had the highest salinity of all sites.

During August, storage volumes increased in four systems, decreased in one and remained stable in one. By the end of the month, the volume of water stored was 82 per cent of the total accessible capacity, which is 31 per cent 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 Less than 1%
Very much above average 13%
Above average 19%
Average 65%
Below average 2%
Very much below average 0%
Lowest on record since 1900 0%

Data files are in zipped ASCII, CSV and text formats
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