Smart Irrigation for Home Assistant (Marketplace integration)

Installs: 1.8k sharing analytics
GitHub stars: 564
Connection: Works locally
Upkeep: Updated in the last 6 months
Version: v2026.10.10, October 26, 2026
Category: Garden and plants
Kind: Marketplace integration
Needs: Needs the Marketplace (HACS on 2026.10 and older)
Domain: smart_irrigation
Source: github.com/altmenorg/HAsmartirrigation
Issues: Report an issue

Independent directory, made by the developer of Vulpo. Not affiliated with Home Assistant or the Open Home Foundation.

Screenshots From the README of altmenorg/HAsmartirrigation.

Smart Irrigation — Zones panel (Home Assistant-native UI)

Info page: the next run and whether it will be skipped

About

Smart Irrigation calculates how long to run an irrigation system to make up for moisture lost through evapotranspiration. It weighs rain and snow against the moisture lost, can take forecasts for the coming days into account, and keeps a running balance called the bucket. Multiple zones are supported, each with its own configuration, and the integration can open and close valves itself with cycle and soak passes, or leave that to automations and the blueprints it ships. It adds sensors, binary sensors, buttons, numbers and a skip-on-precipitation switch, plus actions to calculate zones, update weather data, set or reset buckets and multipliers, and generate a 12-month watering calendar. It also provides a configuration panel, a dashboard card, skip conditions such as rain, frost and wind, and a choice of weather service between Open-Meteo, OpenWeatherMap and Pirate Weather. It works locally and is set up in the UI.

Automatic summary of the README and code of altmenorg/HAsmartirrigation. Something wrong, or are you the maintainer and want your own text here? Get in touch

Supports

Works locally Talks to your devices on your own network. No vendor cloud in between.
From the Marketplace Installed through the Marketplace, formerly HACS.
Actively maintained Its author released or pushed a change in the last six months.

Provides

Switches
Sensors

Setting it up

Install it from the Marketplace and restart Home Assistant, then add it under Settings, Devices and services.

General set up

Unique name of the integration

After setup

Use manual coordinates instead of Home Assistant location
Latitude (decimal degrees, -90 to 90)
Longitude (decimal degrees, -180 to 180)
Elevation above sea level (meters, optional)

Texts from the code of altmenorg/HAsmartirrigation.

Entities

Binary sensorsIrrigation needed, Watering now, Problem
ButtonsCalculate, Reset bucket, Reset water usage, Irrigate now, Calculate all zones, Refresh weather, Irrigate all zones
NumbersMultiplier, Precipitation threshold
SensorsDuration, Bucket, Applied ET, Daily ET deficiency, Current drainage, Last irrigation, Water used, Live bucket
SwitchesSkip on precipitation

Actions

Calculate all zonesCalculate all zones in automatic modeFields: Delete weather data, Dry run
Calculate zoneCalculate specified zoneFields: Entity, Delete weather data, Dry run
Update all zonesUpdate weatherdata for all zones in automatic mode
Update zoneUpdate weatherdata for specified zoneFields: Entity
Set bucketSet bucket for a zone to a specific valueFields: Entity, New bucket value
Set all bucketsSet buckets for all zones to a specific valueFields: New bucket value
Reset bucketReset bucket for a zone to 0Fields: Entity
Reset all bucketsReset bucket for all zones to 0
Clear all weather dataClear weather data for all zones
Set multiplierSet multiplier for a zone to a specific valueFields: Entity, New multiplier value
Set all multipliersSet multipliers for all zones to a specific valueFields: New multiplier value
Set the state of a zoneSet the state of a zone to a specific valueFields: Entity, New state value
Set the values of a zoneSet all configurable values of a zoneFields: Entity, New bucket value, New multiplier value, New duration value, New state value, New throughput value
Generate watering calendarGenerate a 12-month watering calendar for irrigation zones based on representative climate dataFields: Entity
Credit wateringCredit a zone's bucket with the water a run actually delivered, instead of setting it to 0.Fields: Seconds

Troubleshooting

DiagnosticsDownloads a diagnostics file to attach to a bug report.

From the README

This integration calculates the time to run your irrigation system to compensate for moisture loss by evapotranspiration. Using this integration you water your garden, lawn or crops precisely enough to compensate what has evaporated. It takes into account precipitation (rain, snow) and moisture loss caused by evapotranspiration and adjusts accordingly. If it rains or snows less than the amount of moisture lost, then irrigation is required. Otherwise, no irrigation is required. The integration can take into account weather forecasts for the coming days and also keeps track of the total moisture lost or added ('bucket').
🎛️ A panel in four tabs, with a standard and an advanced mode. Home, Zones, Data and Settings, built with native Home Assistant components and saving as you type. A new installation starts in the…
🃏 A dashboard card, served by the integration: what each zone is short of, how long it would run, when, and why not, with a button to water on the spot.
🚰 Direct valve control. Smart Irrigation can open the valves itself, with cycle and soak (the same water in several passes so clay takes it in), a pause between zones, and a watchdog that closes a…
☀️ An hourly FAO-56 calculation. Evapotranspiration computed hour by hour from the Penman-Monteith equation, with or without a radiation sensor and with forecast days, checked against the paper's…

From the README of altmenorg/HAsmartirrigation, MIT License. Shortened.