New Zealand Weather Data

NZ’s trusted source of horticultural weather data for growers and researchers

Every horticultural business depends on weather, but managing weather data is hard

HortPlus provides Managed Weather Data Services and Weather Data
             API access for commercial and research users who are after
             high-quality and reliable data.

Our weather data is sourced from the HortPlus Weather network, a
             network of scientific-grade weather stations covering all the
             major agricultural growing areas in New Zealand.

New Zealand horticultural weather data network

Map of the HortPlus weather station network. Contact us for detailed station information and locations.

HortPlus manages a network of weather stations covering all the major growing areas of New Zealand

Our network includes key research-grade weather stations which are professionally installed by our team or trusted partners, following scientific and WMO (World Meteorological Organization) standards. For these stations, we maintain high-quality historical datasets, in some cases extending back up to 20 years.

HortPlus weather data can be used in GIS and research applications, supporting data overlays, analysis, and the development of new tools and models.If you already operate weather stations or compatible hardware, these can be integrated into the HortPlus platform to create a tailored private network. This approach is well suited to research trials or projects where a single, managed source of data is important.

Data is accessible through our web-based platform and via programmatic APIs.

Managed & Curated Weather Data

HortPlus manages weather data end to end, standardising data from our network into a consistent, usable format. Key stations are installed and maintained to scientific and WMO standards, with long-running stations in key New Zealand growing regions providing historical records for trend analysis and retrospective studies.

Data is subject to quality checks, with clear flags for missing or out-of-range values. Station metadata is maintained alongside the data, and curated datasets are accessible through the MetWatch platform, standard exports, or via our Weather Data API.

Weather data API to power your systems

We provide a secure Weather Data API for programmatic access to our data. The API is designed to support high-volume use and can be integrated with tools such as Power BI, existing applications, and web services, or used as a data source for commercial and research workflows.

We offer clear API documentation and practical support to help you get started and integrate the API into your systems and data pipelines. This includes standard Python and PHP libraries to bootstrap projects, with optional consulting support available for more complex integrations.

Historical data sets

Long-running stations in key New Zealand growing regions include historical records, supporting trend analysis and retrospective studies.

Weather Data file

You can access the MetWatch platform directly to view and export weather data. Data can be exported for selected variables and time periods in a standard CSV format.

Weather Station Variables (Indicative)


Weather Variable Data Granularity
Air Temperature Hourly / Daily
Rainfall Hourly / Daily
Leaf Wetness Hourly / Daily
Relative Humidity Hourly / Daily
Soil Temperature Hourly / Daily
Solar Radiation Hourly / Daily
Evapotranspiration Hourly / Daily
Wind Speed Hourly / Daily
Wind Direction Hourly / Daily
Wind Run Hourly / Daily

Weather Station Information

Item Description
Station Name E.g. Lincoln University
Station ID Short ID for referencing in tools, e.g. Lincoln University = LUN
Region e.g. Canterbury, New Zealand
Backup Station Backup station data to use if primary station data feed becomes unavailable
Co-ordinates Latitude, Longitude
Altitude Elevation in metres above sea level
Logger / Sensor model e.g. CR200X
Establishment Date E.g. 2010-4-18
Calibration Date E.g. 2005-4-18

Talk to us about weather data

If weather data underpins decisions in your business, a short conversation will identify what is in place and where untapped value is.

Get in touch with the HortPlus team by contacting us or
Request an intro call