Terms
Last updated 26 October 2026
These terms cover the seamrun.com website, which Post Nights LLC runs. The Seamrun app will come with its own terms in the App Store and Google Play.
Not for navigation
Seamrun helps you plan. It isn't a navigation chart, and it doesn't replace official charts, the National Weather Service marine forecast or your own judgment on the water.
The information on this site
Sea temperature and other layers come from satellites and public data from NOAA, NASA JPL, GHRSST and the E.U. Copernicus Marine Service. Satellite data can be late, missing or wrong. App screens shown on this site use sample data.
The site is provided as it is, with no warranties. To the extent the law allows, Post Nights LLC isn't liable for losses that come from using it.
Prices and launch
Prices and the launch date shown here are our current plan and may change before launch. Nothing is charged through this site.
Content
The Seamrun name, logo, text and images on this site belong to Post Nights LLC. Map data © OpenStreetMap contributors.