The Remswelle project

Month by month

Every month we record here what the Rems did, what that would have meant for the wave and what was added to this website – in figures, with sources. The discharges come from the Schorndorf gauge of the State Institute for the Environment, the surfable days from our calculation method (discharge between 3 and 15 cubic metres per second; Big Day from 10), the visitor figures from our own cookie-free counter. Latest month first. → River flow of the Rems · → How we count (German)

September 2026

The Rems. September 2026 was the second-driest at the Schorndorf gauge since measurements began in 1931 – only September 1947 was lower. The monthly mean was around 0.8 cubic metres per second, against a long-term September mean of 2.7. On 25 of 30 days the Rems stayed below one cubic metre; the highest daily value came after rain on 9 September with 2.25 cubic metres, and from 20 September the flow dropped to around 0.6 and stayed there to the end of the month.

The wave. Not a single surfable day; the last one was on 17 July (3.8 cubic metres). In 2026 the wave could have run on 46 days by the end of September, including 5 Big Days and 7 days of "it's firing" – a weak year, after 2025 with 100 and 2024 with 199 surfable days. By the end of September the Rems had already spent 82 days of 2026 below one cubic metre. In August the district office had asked people not to enter the Rems and the streams at low water, to spare the animals.

The website. On 22 September remswelle.de went online anew, and by the end of the month 28 versions followed: the knowledge section on river waves, the wave directory for Germany, Austria and Switzerland, the English edition, the search, the wave forecast with live gauge and the new section "Rems and Winterbach" – from the tributaries via flood protection, river restoration, wildlife and plants, cold air and weather to the Winterbach map, the 1832 time travel and the traces in the Hungerberg. The counter has been running since 25 September: in its first six days it counted 210 page views, 81 of them on 26 September alone. The most viewed were the home page (69), the Winterbach map (13) and "About us" (11); 23 views were of English pages.

Sources: LUBW, Schorndorf gauge, daily means to 24 September 2026, thereafter Flood Forecasting Centre (daily values); own analysis; remswelle.de counter (page views without cookies, 25–30 September 2026); Rems-Murr district office, August 2026.

Frequently asked questions

How do you count whether the wave could have run?

We assume the wave would be surfable at a discharge between 3 and 15 cubic metres per second at the Schorndorf gauge; from 10 we speak of a Big Day. Whether that holds, the feasibility study has to show. → River flow of the Rems

Where do the visitor figures come from?

From our own counter on the server, which only records which page was viewed when – no cookies, no user profiles. → Privacy (German)