Rhine July temperature hits record 24.5 degrees Celsius
August 1, 2026In July 2026, the Rhine at Weil am Rhein reached a record-high average water temperature of 24.5 degrees Celsius, making it the warmest July since monitoring began in 2002. The month ended with a temperature of 24.7 degrees, offering ideal conditions for swimming with appropriate safety precautions.
The Rhine water quality is continuously monitored at the Rheinüberwachungsstation Weil am Rhein (RÜS). This monthly insight focuses on the temperature parameter for July 2026.
July 2026 was an exceptionally warm month for the Rhine at this monitoring station. The average water temperature reached 24.5 degrees Celsius, with a minimum of 23.5 degrees and a maximum of 26.3 degrees. The month began with its highest temperature of 26.3 degrees on July 1st, while the lowest temperature of 23.5 degrees was recorded on July 4th. By the end of the month, on July 31st, the water temperature had settled at a still very warm 24.7 degrees.
Looking at the historic record for July since 2002, the long-term trend shows considerable variability, with average monthly temperatures typically ranging between 18 and 23 degrees. July 2026 stands out as the warmest July on record, surpassing the previous high of 23.8 degrees set in 2022. In contrast, the coolest July was recorded in 2007, with an average of just 18.3 degrees. Given the average temperature of 24.7 degrees on the last day of the month, conditions are excellent for a refreshing dip. We wish you a happy swim. 🏊 Always remember to be cautious and check local conditions before entering the water; you can find safety advice at Schwimmen im Rhein or by installing the BachApp.
Table 1: Summary of July 2026 Water Temperature in the Rhine River
| metric | date | value |
|---|---|---|
| Average temperature | July 2026 | 24.5 |
| Lowest temperature | 2026-07-04 | 23.5 |
| Highest temperature | 2026-07-01 | 26.3 |
| Temperature on first day of month | 2026-07-01 | 26.3 |
| Temperature on last day of month | 2026-07-31 | 24.7 |
Figure 1: July Rhine Water Temperatures [°C] since 2002
Figure 2: Rhine River average July Temperature [°C] since 2002
Figure 4: Heatmap of Rhine River Temperatures [°C]
Additional resources: Ryh Gfühl
🤖 This text was generated with the assistance of AI. All quantitative statements are derived directly from the dataset listed under Data Source.