--- title: "Sea Temperatures" description: "Sea Temperatures is a Marketplace integration for Home Assistant. It has 96 installs sharing analytics, needs the vendor's cloud and was last updated October 4, 2026." canonical: "https://vulpo.app/integrations/marketplace/timmaurice-sea-temperatures" url: "https://vulpo.app/integrations/marketplace/timmaurice-sea-temperatures.md" last-updated: "2026-10-22" version: "1.4" --- # Sea Temperatures > Sea Temperatures is a Marketplace integration for Home Assistant. It has 96 installs sharing analytics, needs the vendor's cloud and was last updated October 4, 2026. Sea Temperatures is an integration that reads sea, lake and ocean water temperatures from seatemperatures.net. It adds a temperature sensor for each chosen place, and each place gets its own device. The sensor carries attributes such as yesterday's value, a 10-year average and a 30-day series. A dashboard card is bundled with it, showing current temperatures, a trend arrow against yesterday and a 30-day area chart that works with touch, pen and mouse. Setup runs in the UI by picking continent, country and place, and the data comes from the vendor's cloud. The update interval can be changed in the options, and the card is available in English, German, Spanish, French and Italian. Automatic summary of the README and code of timmaurice/sea-temperatures. 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=timmaurice&repository=sea-temperatures&category=integration) On Home Assistant 2026.11 or newer? [Open it in the Marketplace](https://my.home-assistant.io/redirect/marketplace_repository/?owner=timmaurice&repository=sea-temperatures&category=integration) ## Supports - **Uses the vendor's cloud**: Needs an internet connection and an account with the vendor. - **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. ### Select Continent - **Continent** ### Select Country - **Country** ### Select Place - **Place** ### After setup - **Update interval (hours)** Texts from the code of [timmaurice/sea-temperatures](https://github.com/timmaurice/sea-temperatures). ## Troubleshooting - **Diagnostics**: Downloads a diagnostics file to attach to a bug report. ## From the README > This custom integration for Home Assistant fetches sea temperatures directly from seatemperatures.net. It comes fully bundled with a beautiful custom Lovelace card! > > Today's sea temperature, the 10-year average, and a 30-day trend for 19,259 coastal locations, lakes, and rivers around the world. > > - Global Coverage: Select coastal locations from around the world. > - Detailed Attributes: Provides today's temperature alongside current site data such as yesterday, 10-year averages, and a 30-day chart. A last\_week value is exposed only when it can be derived from… > - Device per Place: Creates a dedicated device in Home Assistant for each monitored location. > - Bundled Custom Card: Displays current temperatures, a trend indicator (↑/↓/→) against the site's own published yesterday value, and a 30-day D3 historical area chart. > - Touch Friendly: The chart is scrubbable by touch and pen as well as by mouse, without blocking page scrolling. > - Accessible: Place rows are focusable and keyboard-operable, and both the row and the chart expose screen-reader summaries. > - Graceful When Offline: An unavailable or unknown place shows a dash instead of a bogus reading and sorts last. > - Localization: Supports English, German, Spanish, French, and Italian out of the box. From the README of [timmaurice/sea-temperatures](https://github.com/timmaurice/sea-temperatures#readme), [MIT License](https://spdx.org/licenses/MIT.html). Shortened. ## At a glance - Kind: Marketplace integration - Category: [Sensors](https://vulpo.app/integrations/category/sensors.md), Temperature and humidity - Number: 96 installs sharing analytics; 10 GitHub stars - Connection: Needs the vendor's cloud - Upkeep: Updated in the last 6 months - Needs: Needs the Marketplace (HACS on 2026.10 and older) - Latest version: 3.4.0, last updated October 4, 2026 - Domain: `seatemperatures` - Source: - Issues: - Screenshot: https://vulpo.app/integrations-img/c3389a1d64c46204.webp (from timmaurice/sea-temperatures's README) 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/marketplace/timmaurice-sea-temperatures --- - HTML version of this page: https://vulpo.app/integrations/marketplace/timmaurice-sea-temperatures - Site index for agents: https://vulpo.app/llms.txt - Everything in one document: https://vulpo.app/llms-full.txt - All pages: https://vulpo.app/sitemap.xml