---
title: "Smart Irrigation"
description: "Smart Irrigation is a Marketplace integration for Home Assistant. It has 1.8k installs sharing analytics, works locally and was last updated October 26, 2026."
canonical: "https://vulpo.app/integrations/marketplace/altmenorg-hasmartirrigation"
url: "https://vulpo.app/integrations/marketplace/altmenorg-hasmartirrigation.md"
last-updated: "2026-10-27"
version: "1.4"
---

# Smart Irrigation

> Smart Irrigation is a Marketplace integration for Home Assistant. It has 1.8k installs sharing analytics, works locally and was last updated October 26, 2026.

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](https://vulpo.app/contact)

[Open in My Home Assistant](https://my.home-assistant.io/redirect/hacs_repository/?owner=altmenorg&repository=HAsmartirrigation&category=integration)

On Home Assistant 2026.11 or newer? [Open it in the Marketplace](https://my.home-assistant.io/redirect/marketplace_repository/?owner=altmenorg&repository=HAsmartirrigation&category=integration)

## 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.

## 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](https://github.com/altmenorg/HAsmartirrigation).

## Entities

- **Binary sensors**: Irrigation needed, Watering now, Problem
- **Buttons**: Calculate, Reset bucket, Reset water usage, Irrigate now, Calculate all zones, Refresh weather, Irrigate all zones
- **Numbers**: Multiplier, Precipitation threshold
- **Sensors**: Duration, Bucket, Applied ET, Daily ET deficiency, Current drainage, Last irrigation, Water used, Live bucket
- **Switches**: Skip on precipitation

## Actions

- **Calculate all zones**: Calculate all zones in automatic mode
  Fields: Delete weather data, Dry run
- **Calculate zone**: Calculate specified zone
  Fields: Entity, Delete weather data, Dry run
- **Update all zones**: Update weatherdata for all zones in automatic mode
- **Update zone**: Update weatherdata for specified zone
  Fields: Entity
- **Set bucket**: Set bucket for a zone to a specific value
  Fields: Entity, New bucket value
- **Set all buckets**: Set buckets for all zones to a specific value
  Fields: New bucket value
- **Reset bucket**: Reset bucket for a zone to 0
  Fields: Entity
- **Reset all buckets**: Reset bucket for all zones to 0
- **Clear all weather data**: Clear weather data for all zones
- **Set multiplier**: Set multiplier for a zone to a specific value
  Fields: Entity, New multiplier value
- **Set all multipliers**: Set multipliers for all zones to a specific value
  Fields: New multiplier value
- **Set the state of a zone**: Set the state of a zone to a specific value
  Fields: Entity, New state value
- **Set the values of a zone**: Set all configurable values of a zone
  Fields: Entity, New bucket value, New multiplier value, New duration value, New state value, New throughput value
- **Generate watering calendar**: Generate a 12-month watering calendar for irrigation zones based on representative climate data
  Fields: Entity
- **Credit watering**: Credit a zone's bucket with the water a run actually delivered, instead of setting it to 0.
  Fields: Seconds

## Troubleshooting

- **Diagnostics**: Downloads 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](https://github.com/altmenorg/HAsmartirrigation#readme), [MIT License](https://spdx.org/licenses/MIT.html). Shortened.

## At a glance

- Kind: Marketplace integration
- Category: [Garden and plants](https://vulpo.app/integrations/category/garden-and-plants.md)
- Number: 1.8k installs sharing analytics; 564 GitHub stars
- Connection: Works locally
- Upkeep: Updated in the last 6 months
- Needs: Needs the Marketplace (HACS on 2026.10 and older)
- Latest version: v2026.10.10, last updated October 26, 2026
- Domain: `smart_irrigation`
- Source: <https://github.com/altmenorg/HAsmartirrigation>
- Issues: <https://github.com/altmenorg/HAsmartirrigation/issues>
- Screenshot: https://vulpo.app/integrations-img/0123d7d327c7b6fb.webp (from altmenorg/HAsmartirrigation's README)
- Screenshot: https://vulpo.app/integrations-img/319fea1108b424c7.webp (from altmenorg/HAsmartirrigation's README)
- Screenshot: https://vulpo.app/integrations-img/a8f963c3113077d9.webp (from altmenorg/HAsmartirrigation's README)

In Vulpo: Quick Toggle card, Button card, Chart card, Apple Watch, Control Center

Independent directory, made by the developer of Vulpo. Not affiliated with Home Assistant or the Open Home Foundation. [About these numbers](https://vulpo.app/integrations/about)

Last updated 2026-10-27. Source: https://vulpo.app/integrations/marketplace/altmenorg-hasmartirrigation

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