Water data sources in New Zealand

River flow and water quality monitoring data from NIWA's Benchmark river monitoring network with provisional and quality checked records graded following NEMS guidelines

Free | New Zealand benchmark river monitoring network

Auckland Council's environmental monitoring portal providing live rainfall, river flow, groundwater and air quality data sourced from its Hydstra/Hydrotel databases, plus a Water...

Free | Regional (Auckland)

Auckland Council open data portal to discover, analyse and download environmental datasets (including rainfall and water-quality layers) in CSV, KML and GeoJSON with GeoServices...

Free | Auckland, New Zealand

ArcGIS Hub open dataset of Environment Canterbury river flow and stage monitoring site locations and the ECan river network, downloadable and accessible via an ArcGIS REST/GeoJSON...

Free | Canterbury region monitoring sites

New Zealand's national river network classification database mapping every river segment by climate, flow source, topography, geology and land cover; downloadable as Esri File...

Free | National

Environment Canterbury open data catalogue providing downloadable summaries of recent river flows and stage height for north and south Canterbury, alongside related river and...

Free | Canterbury region

Environment Canterbury developer portal providing the Environmental Observations API for observational environmental data, including river flow, from monitoring sites across the...

Free | Canterbury, New Zealand

Environment Canterbury's open data portal with freshwater monitoring, river flow (135+ continuous flow sites), rainfall and natural resource datasets in machine-readable formats...

Free | Canterbury

Environment Canterbury regional river flow monitoring portal providing current and historic flow and water level data for rivers across the Canterbury region of New Zealand.

Free | Canterbury, New Zealand

Environment Canterbury water quality data service providing access to an extensive database of water quality sampling results for rivers, lakes and groundwater in the Canterbury...

Free | Canterbury, New Zealand

Greater Wellington Regional Council open data with live air quality, climate, groundwater levels, lakes/wetlands, rainfall, river/stream levels, tide levels and water quality plus...

Free | Wellington Region

Greater Wellington Regional Council water monitoring portal providing rainfall, river level and flow, and groundwater bore level data from the regional monitoring network.

Free | Wellington, New Zealand

Hawke's Bay Regional Council ArcGIS open data site providing environmental and water datasets downloadable as CSV, KML, Zip, GeoJSON, GeoTIFF or PNG, with feature service access.

Free | Hawke's Bay

Hawke's Bay Regional Council's open environmental time-series data published through a Hilltop Server web service, the query-based API standard used by many New Zealand regional...

Free | Regional (Hawke's Bay)

National New Zealand partnership portal presenting river, lake, groundwater, estuary and recreational water quality plus water quantity (flow, rainfall, groundwater levels) for...

Free | New Zealand

LAWA bulk download page providing CC BY 4.0 licensed national water quality and quantity datasets collected by New Zealand's 16 regional councils and Earth Sciences New Zealand.

Free | New Zealand

New Zealand national groundwater quality monitoring data from over 1,000 wells (2004-2024) with state and trend results, available to explore and download via the LAWA...

Free | National (New Zealand)

New Zealand Ministry for the Environment data service layer of national river-flow estimates for river segments, downloadable as spatial data and accessible via OGC/WFS services.

Free | New Zealand

New Zealand Ministry for the Environment open GIS data service providing freshwater environmental reporting datasets (rivers, wetlands, water quality) for view and download.

Free | New Zealand

DOI-cited New Zealand groundwater quality dataset covering 110 sites across all 15 regions since 1990 - major ions, nutrients, dissolved metals and age-tracer measurements...

Free | National

Earth Sciences New Zealand (NIWA) open data catalogue for New Zealand's land, water and atmosphere, including freshwater datasets served via an ArcGIS Hub open data platform...

Free | National

Free national data service with monthly water quality data since 1989 from 77 river monitoring sites including dissolved oxygen, temperature, clarity, turbidity, pH, nutrients...

Free | 77 river monitoring sites across New Zealand

Northland Regional Council environmental data page providing river flow, water level, rainfall and water quality monitoring data for the Northland region, linked to the LAWA...

Free | Northland, New Zealand

New Zealand open-data catalogue dataset of national river-flow predictions and monitoring layers, providing modelled and observed flow attributes for the national river network.

Free | New Zealand

National-scale predictions of metrics describing hydrology, ecology, water quality and landscapes mapped onto National River Network (RECv2.4)

Free | All New Zealand rivers and streams

Otago Regional Council environmental data portal with map-based access to water level, flow, rainfall and temperature from more than 250 monitoring sites, including up to 80 years...

Free | Otago, New Zealand

AQUARIUS-based environmental data portal collating water level, river flow, rainfall and temperature from more than 350 monitoring sites across the Otago region, with up to 80...

Free | 350+ sites, Otago region

Statistics New Zealand's environmental reporting series (with Ministry for the Environment) publishing freshwater state and trend indicator datasets including river water quality...

Free | National

Stats NZ environmental indicators tool with freshwater domain indicators and trends (river water quality, groundwater, flows) and downloadable supporting data produced with the...

Free | New Zealand

Taranaki Regional Council environmental data pages providing detailed site data with the ability to view and export monitoring results (river flow, level, water quality) by date...

Free | Taranaki, New Zealand

New Zealand water services regulator's Drinking Water Regulation Report and Network Environmental Performance Report covering 560 public drinking water networks plus wastewater...

Free | New Zealand

Waikato Regional Council open data portal with environmental monitoring feeds - river flow, water quality, rainfall - downloadable in multiple formats with APIs for many datasets...

Free | Waikato

Waikato Regional Council EnviroHub providing constantly updating environmental monitoring data feeds, with site selection from interactive maps for river levels, flow, rainfall...

Free | Waikato, New Zealand

Earth Sciences New Zealand (GNS Science) database storing hydrological, geochemical, geological and geophysical groundwater data from 1,500+ NZ sites, including the National...

Limited | National (New Zealand)

Model-derived steady-state mean water table for all of New Zealand at 250 m resolution. Downloadable as zipped GeoTIFFs of hydraulic head (m a.s.l.) and water table depth (m below...

Free | National

Manaaki Whenua - Landcare Research portal serving NZ land and water-relevant spatial data including the Land Cover Database (LCDB v6.0, 2025), soil and erosion layers for GIS...

Free | National

New Zealand National Environmental Data Centre cataloguing key environmental datasets including the National Groundwater Monitoring Programme, Land Cover Database and freshwater...

Free | National

Island hydrology and water quality

Free | National freshwater research

NIWA (Earth Sciences New Zealand) public geospatial open data hub for discovering and downloading science datasets in CSV, KML, GeoJSON, GeoTIFF and other formats, including...

Free | New Zealand

Manaaki Whenua - Landcare Research interactive environmental data viewer for New Zealand, integrating freshwater, land cover, soil and catchment indicators with data provenance...

Free | National

Open-source multi-hazard risk modelling software from NIWA and GNS Science (New Zealand) that models river flooding, coastal storm-tide inundation, tsunami and other hazards to...

Free | New Zealand / configurable

New Zealand agricultural weather platform operating 100+ scientific weather stations and providing localized historic and forecast evapotranspiration, plus pest/disease and...

Limited | National

Wellington Water's ArcGIS open data hub publishing three-waters infrastructure, water supply network, wastewater and stormwater asset datasets for the metropolitan Wellington...

Free | Wellington Region

CAMELS-NZ: hourly hydrometeorological time series (streamflow, precipitation, temperature, relative humidity, PET) and static landscape attributes (land cover, soil, geology...

Free | 369 catchments (New Zealand)