Monthly Water Update

small map representing the district South East Coast (NSW)

South East Coast (NSW)

January 2021 Summary

Rainfall was average across 67 per cent of the area, spread throughout the drainage division and higher than average across 25 per cent of the area. Total rainfall was 121 mm, 6 per cent higher than the long-term mean of 114 mm for January.

Streamflows were higher than average for 84 per cent of the sites, mainly in the north and centre. At five sites streamflows were the second highest for January since 1980.

Median streamflow salinity (electrical conductivity) varied between sites from 283 to 3 521 μS/cm. Streamflows were high quality for 22 per cent of the sites, fresh for 45 per cent and brackish for 22 per cent. Bayswater Creek at Liddell had the highest salinity of all sites.

During January, storage volumes increased in three systems, decreased in one and remained stable in two. By the end of the month, the volume of water stored was 83 per cent of the total accessible capacity, which is 41 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 7%
Above average 18%
Average 67%
Below average 8%
Very much below average Less than 1%
Lowest on record since 1900 0%

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