What historical readings show
What the year comparison shows for Lake Brienz
Typical low point
563.24 m a.s.l.
February 18
Typical high point
564.29 m a.s.l.
July 7
Typical range
104 cm
Difference between daily medians
In the 1991-2020 reference period, Lake Brienz's seasonal median is lowest on February 18 at 563.24 m a.s.l. and highest on July 7 at 564.29 m a.s.l.. The difference between these typical points is 104 cm. This describes the average seasonal cycle, not the largest individual fluctuation.
The 2026 curve currently contains 311 calendar days. On November 7 it shows 563.41 m a.s.l., which is 32 cm below that calendar day's median of 563.73 m a.s.l.. Compared with the same calendar day in 2025, the value is 26 cm lower.
For the comparison years 1991-2020, the highest displayed value is 566.05 m a.s.l. on August 23 and the lowest is 562.85 m a.s.l. on March 1. These extremes apply to this period, not the entire measurement history.
The analysis uses the water-level series from Ringgenberg. 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.