Gfrörli: Water Temperatures CH play online

The "Gfrr.li" app shows you the water temperatures of Swiss bodies of water. So it's ideal for "Gfrrlis" (the Swiss German word for people who don't like cold temperatures) who still want to swim in the lake or river! So far, sensors are in operation in Lake Zrich and Lake Lucerne. More sensors will follow.

The data comes from self-operated measuring stations and is updated several times an hour. More information about the project can be found at https://gfrr.li/.