Lago Maggiore water temperature
Lago Maggiore, Ascona · Lake
The current water temperature at Lago Maggiore is 23.0 °C (as of September 20, 2026, source: Eawag/Alplakes model).
Lakes stratify in summer: bathing-warm on top, markedly colder a few metres down. Measurements are taken at the surface — right where you swim.
_Mattes_2022-07-23.jpg){kind=link}
Water quality
EU classification: excellentMeasurement series & statistics
This measurement series includes 476 data points since July 22, 2026.
Lowest recorded value: 23.0 °C on September 20, 2026 · highest value: 27.0 °C on August 14, 2026.
In September, temperatures have ranged between 23.0 °C and 25.4 °C.
The current value is 1.4 °C below the September average of this series.
Nearby waters
More measuring points: Lago Maggiore
Frequently asked questions
Can you swim at Lago Maggiore right now?
The current water temperature is 23.0 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Lago Maggiore?
Currently 23.0 °C (updated continuously).
How warm is at Lago Maggiore in September?
In September, the water temperature recently averaged 24.4 °C.
When is the water warmest at Lago Maggiore?
Across the measurement record, August is on average the warmest month (26.0 °C).
How is the water quality at Lago Maggiore?
The official classification is: excellent.
