Monthly Water Update

small map representing the district South East Coast (NSW)

South East Coast (NSW)

July 2022 Summary

Rainfall was very much above average (including highest on record) across 54 per cent of the area, mainly in the south and centre. Average rainfall was observed across 17 per cent of the area, mainly in the south and north. Total rainfall was 164 mm, 173 per cent higher than the long-term mean of 60 mm for July. Rainfall was the seventh highest for July in the past 123 years.

Following the rainfall pattern, streamflows were very much above average (including highest on record) for 68 per cent of the sites, spread throughout the drainage division.

Median streamflow salinity (electrical conductivity) varied between sites from 198 to 2 681 μS/cm. Streamflows were high quality for 51 per cent of the sites and brackish for 25 per cent of the sites. Bayswater Creek at Liddell had the highest salinity of all sites.

During July, storage volumes increased in four systems and remained stable in two. By the end of the month, the volume of water stored was 102 per cent of the total accessible capacity, which is 14 percentage point higher than the previous year.

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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 11%
Very much above average 43%
Above average 29%
Average 17%
Below average Less than 1%
Very much below average 0%
Lowest on record since 1900 0%

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