Reference data analysis
What the year comparison shows for Lake Sils
Typical low point
1,796.26 m a.s.l.
April 11
Typical high point
1,796.83 m a.s.l.
June 30
Typical range
57 cm
Difference between daily medians
In the 1991-2020 reference period, Lake Sils's seasonal median is lowest on April 11 at 1,796.26 m a.s.l. and highest on June 30 at 1,796.83 m a.s.l.. The difference between these typical points is 57 cm. This describes the average seasonal cycle, not the largest individual fluctuation.
The 2026 curve currently contains 265 calendar days. On September 22 it shows 1,796.76 m a.s.l., which is 3 cm below that calendar day's median of 1,796.79 m a.s.l.. Compared with the same calendar day in 2025, the value is 4 cm higher.
Within the 1991-2020 reference period, the envelope reaches its highest value of 1,797.77 m a.s.l. on June 18 and its lowest value of 1,796.13 m a.s.l. on March 26. These are extremes of the displayed reference period, not all-time records.
The analysis uses the water-level series from Silsersee, Sils Baselgia. Matching calendar days are compared, and the median is the middle value of the reference years. This classification does not replace flood warnings or local safety information.