Lake Rotoiti

General information

Lake Rotoiti is an elongated lake located partly in the Harohao caldera. It is connected to Lake Rotorua via the Ohau channel while subsurface flows connect it to Lake Rotoma and Lake Rotoehu.

Issues concerning the lake are the impacts of existing and future urban and rural developments on the water quality of the lake. The impacts the artificially maintained lake levels may have on the use of lakeside reserves are also a concern.


Lake Rotoiti looking towards Ohau Channel. Photo taken by Wendy Paul.
Water quality:Moderate
Max Depth:93.5m
Catchment % pasture:23.9%
Catchment % urban:1.1%


Available Data

Click here to download past water quality data


Sampling site locations for Lake Rotoiti

Inflows: Ohau Channel

Click here to download past inflow data

Outflows: Kaituna River

Click here to download past outflow data from Okere Falls site

Click here to download past outflow data from Taaheke site

Catchment information

Land cover

Land usage

Comparsion of Lake Rotorua and Lake Rotoiti catchments

Nutrient budget for lakes Rotoiti and Rotorua(PDF)

Link to Bathymetry