Hydrology, rainfall information for Auckland, published on the first of the month.

1 June 2026

Extract

Regional summary

• Regional monthly mean rainfall for May 2026 was 39mm, approximately 73% above the mean.
• 5 out of 10 sites have a soil moisture status of normal or higher.
• All 36 river monitoring sites are above the mean annual low flow (MALF).
• 31 (84%) groundwater sites are at a normal or higher groundwater level status.

Auckland Council, June 2026

https://aklc.hydrotel.co.nz/HydroSitRep.html

Any questions and for more information email EnvironmentalData@aucklandcouncil.govt.nz