---
title: "OpenUV"
description: "OpenUV is a built-in integration for Home Assistant. It has 3k installs sharing analytics and needs the vendor's cloud."
canonical: "https://vulpo.app/integrations/core/openuv"
url: "https://vulpo.app/integrations/core/openuv.md"
last-updated: "2026-10-22"
version: "1.4"
---

# OpenUV

> OpenUV is a built-in integration for Home Assistant. It has 3k installs sharing analytics and needs the vendor's cloud.

OpenUV is a built-in Home Assistant integration that reports UV and ozone data from the OpenUV cloud service. It adds sensors for the current UV index, current UV level, maximum UV index and current ozone level. Separate sensors give a safe exposure time for each of the six skin types. A binary sensor shows whether the protection window is active, and the options let the starting and ending UV index for that window be changed. Setup is done in the UI with an API key, plus elevation, latitude and longitude. A diagnostics file can be downloaded to attach to a bug report.

Automatic summary of Home Assistant's source code. Something wrong? [Get in touch](https://vulpo.app/contact)

[Open in My Home Assistant](https://my.home-assistant.io/redirect/config_flow_start/?domain=openuv)

## Supports

- **Uses the vendor's cloud**: Needs an internet connection and an account with the vendor.
- **Set up in the UI**: Add it in Settings, Devices and services. Nothing to download.
- **Updated with Home Assistant**: Ships and updates with every Home Assistant release.

## Setting it up

It is added under Settings, Devices and services, with Add integration.

### Fill in your information

- **API key**
- **Elevation**
- **Latitude**
- **Longitude**

### Sign in again

- **API key**

### After setup

- **Starting UV index for the protection window**
- **Ending UV index for the protection window**

Texts from Home Assistant's source code, [Apache License 2.0](https://www.apache.org/licenses/LICENSE-2.0).

## Entities

- **Binary sensors**: Protection window
- **Sensors**: Current ozone level, Current UV index, Current UV level, Max UV index, Skin type 1 safe exposure time, Skin type 2 safe exposure time, Skin type 3 safe exposure time, Skin type 4 safe exposure time, Skin type 5 safe exposure time, Skin type 6 safe exposure time

## Troubleshooting

- **Diagnostics**: Downloads a diagnostics file to attach to a bug report.

## At a glance

- Kind: Built-in integration
- Category: [Weather and alerts](https://vulpo.app/integrations/category/weather-and-alerts.md), Air quality and pollen
- Brand: OpenUV
- Number: 3k installs sharing analytics
- Connection: Needs the vendor's cloud
- Upkeep: Part of Home Assistant
- Needs: Built into Home Assistant
- Domain: `openuv`
- Source: <https://www.home-assistant.io/integrations/openuv/>

In Vulpo: Chart card, Apple Watch

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 2026-10-22. Source: https://vulpo.app/integrations/core/openuv

---

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