Datasets
Search every dataset published on Hawaiʻi’s open data portal.
Filters1
Organization
Category
Tag
- Hawaii Statewide GIS Program5
- Hawaii3
- Oahu2
- HawaiiStateGIS2
- weather1
- Transportation1
- precipitation1
- major roads1
Show 28 moreShow fewer
- isohyets1
- histategis1
- climate1
- annual rainfall mm1
- Watersheds1
- Water1
- Volcano Boundaries1
- University of Hawaii Geography Department1
- State of Hawaii1
- Standards1
- Safety1
- Restricted1
- Rainfall Atlas of Hawaii1
- Quality1
- Niihau1
- Molokai1
- Maui1
- Line1
- Lanai1
- Kauai1
- Kahoolawe1
- Inland1
- Hazard1
- Hawaii County1
- Geological1
- Climatology1
- Classifications1
- CC of Honolulu1
5 datasets
- Office of Planning and SustainabilityUpdated Oct 13, 2026
Annual Rainfall (mm)
Mean Annual Rainfall Isohyets in Millimeters for the Islands of Hawai‘i, Kaho‘olawe, Kaua‘i, Lāna‘i, Maui, Moloka‘i and O‘ahu. Source: 2011 Rainfall Atlas of Hawaii, https://www.hawaii.edu/climate-data-portal/rainfall-atlas . Note that…
- HTML
- ArcGIS
- OGC WFS
- OGC WMS
- CSV
- ZIP
- GeoJSON
- KML
- Office of Planning and SustainabilityUpdated Oct 13, 2026
Volcano Lava Flow Hazard Zones (Line)
Description: Volcano Lava Flow Hazard Zones (Line) - Hawaii County Source: US Geological Survey (USGS), 1991. This layer shows the boundaries between the volcanoes on the island of Hawaii. May 2024: Hawaii Statewide GIS Program staff…
- HTML
- ArcGIS
- OGC WFS
- OGC WMS
- CSV
- ZIP
- GeoJSON
- KML
- Office of Planning and SustainabilityUpdated Oct 13, 2026
Restricted Watersheds
Description: Restricted Watersheds, DLNR DOFAW, 2005. "Restricted Watersheds" are those watersheds where water supplies are vulnerable to contamination by public access and are therefore restricted from public access. Access to…
- HTML
- ArcGIS
- OGC WFS
- OGC WMS
- CSV
- ZIP
- GeoJSON
- KML
- Office of Planning and SustainabilityUpdated Oct 13, 2026
Inland Water Quality Standards Classifications
Description: Inland Water Quality Standards Classifications, State of Hawaii as of 2015 Source: State of Hawaii, Department of Health (DOH), Clean Water Branch, 2015 May 2024: Hawaii Statewide GIS Program staff removed extraneous fields…
- HTML
- ArcGIS
- OGC WFS
- OGC WMS
- CSV
- ZIP
- GeoJSON
- KML
- Office of Planning and SustainabilityUpdated Oct 13, 2026
Major Roads - Oahu (Honolulu County)
Description: Major roads for the island of Oahu only as of May, 2021. Source: Honolulu Land Information System (HOLIS), C&C of Honolulu, May, 2022. History: Downloaded from C&C GIS Open Geospatial Data Portal, May, 2022. Projected data…
- HTML
- ArcGIS
- OGC WFS
- OGC WMS
- CSV
- ZIP
- GeoJSON
- KML