Monthly Water Update

small map representing the district South Australian Gulf

South Australian Gulf

September 2017 Summary

Rainfall was very much below average (including lowest on record) across 47% of the area, mainly in the north and centre. Mean rainfall was 14 mm, 53% lower than the 1900 to 2016 mean of 30 mm for September.

Streamflows were average or higher than average for 81% of the sites.

Median streamflow salinities varied between 445 and 6178 microSiemens/cm. Streamflows were fresh for 43% of the sites and brackish for 14% of the sites. Broughton River at Mooroola had the highest salinity of all sites.

During September, the total storage volume increased by 3%. By the end of the month, the volume of water stored was 88% of the total accessible capacity, a decrease of 6% from 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 0%
Above average Less than 1%
Average 20%
Below average 31%
Very much below average 39%
Lowest on record since 1900 8%

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