Monthly Water Update

small map representing the district South East Coast (NSW)

South East Coast (NSW)

October 2021 Summary

Rainfall was higher than average across 98 per cent of the area, mainly in the south and north and average across 41 per cent of the area, mostly in the centre. Very much above average rainfall occurred over 12 per cent of the area, mainly in the south and far north.Total rainfall was 96 mm, 33 per cent higher than the long-term mean of 72 mm for October.

Streamflows were higher than average for 65 per cent of the sites, spread throughout the drainage division and average for 30 per cent of the sites. In the far south, streamflows were very much above average at three sites. Shoalhaven River at Kadoona and Tuross River at Eurobodalla had the second highest streamflows for October since 1980.

Median streamflow salinity (electrical conductivity) varied between sites from 319 to 4 000 μS/cm. Streamflows were high quality for 22 per cent of the sites, fresh for 11 per cent and brackish for 56 per cent of the sites. Bayswater Creek at Liddell had the highest salinity of all sites.

During October, storage volumes increased in one system and remained stable in five. By the end of the month, the volume of water stored was 88 per cent of the total accessible capacity, which is five percentage points higher than the previous year.

Select thumbnail for more information...

Rainfall

map visualising rainfall details

Streamflow

map visualising streamflow details

Streamflow salinity

map visualising salinity details

Water storages

map visualising storage details

Rainfall

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 12%
Above average 45%
Average 41%
Below average 2%
Very much below average 0%
Lowest on record since 1900 0%

Data files are in zipped ASCII, CSV and text formats
File package size: 30Kb