Where is Hofstätter See?

Hofstätter See is a lake in Rosenheim, Bavaria. This page reports official water-quality measurements, shown as reported.

Is Hofstätter See safe to swim in?

Hofstätter See has official nutrient and clarity measurements, not a bacteria swim class and not a safety clearance. Algal blooms, currents, and depth are not covered. Always check local notices before swimming.

Hofstätter See

Rosenheim, BavariaView map Directions

LfU publishes the water-quality measurements for Hofstätter See. Here is what has been measured.

Clarity

1.1 m

Murkier than most

Secchi · sampled 2022

Phosphorus

29 µg/L

More phosphorus than most

Measured by LfU

Chlorophyll-a

13 µg/L

More algae than most

Measured by LfU

Limited data

See the measurements Directions Where to stay

Hofstätter See in Rosenheim, Bavaria has official water-quality measurements, shown as reported. Water clarity: 1.1 m visibility. Phosphorus: 29 µg/L. Chlorophyll-a (algae): 13 µg/L.

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How Hofstätter See is classified

Hofstätter See in Bavaria is published with the authority's own measurements and class. The measurements here are published by the agency that samples the lake, as reported. Sampling here has recorded water clarity, phosphorus and algae (chlorophyll-a).

LakeQuality publishes no grade of its own beside it. Everything below thathas been measured is reported on this page.

Monitoring: the Bavarian Environment Agency (LfU) Gewässerkundlicher Dienst.

Hofstätter See is a lake in Rosenheim County, Bavaria.

Source: the Bavarian Environment Agency (LfU) Gewässerkundlicher Dienst — not the EPA Water Quality Portal, last sampled 2022-12-07. Methodology: how these readings are compared.

Swimming conditions

No reading

Limited data

Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.

Whether Hofstätter See is safe to swim in today is a call for the Bavarian Environment Agency (LfU) Gewässerkundlicher Dienst and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.

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Water quality measurements for Hofstätter See

These are the measurements LfU publishes for Hofstätter See. More on the source.

Murky, only visible to about 3.6 ft. Phosphorus 29 µg/L. Chlorophyll-a 13 µg/L. TSI 56.

Water quality readings
Measure	Reading	Where it sits
Water clarity (Secchi depth)	1.1m	Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer.
Total phosphorus	29µg/L	Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential.
Chlorophyll-a (algae)	13µg/L	Measured, not scored The green pigment in algae — a direct measure of how much algae is in the water.
Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a.	56	Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic

High nutrients, frequent algae, reduced clarity

Ask about Hofstätter See

Answers come straight from the public measurements and survey records on this page.

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Fishing Hofstätter See

→ Hofstätter See fishing regulations (limits, seasons, special rules)

Frequently asked questions about Hofstätter See

Where is Hofstätter See?: Hofstätter See is a lake in Rosenheim, Bavaria. This page reports official water-quality measurements, shown as reported.
What is the water quality of Hofstätter See?: Hofstätter See in Rosenheim, Bavaria has official water-quality measurements, shown as reported. Water clarity: 1.1 m visibility. Phosphorus: 29 µg/L. Chlorophyll-a (algae): 13 µg/L.
Is Hofstätter See safe to swim in?: Hofstätter See has official nutrient and clarity measurements, not a bacteria swim class and not a safety clearance. Algal blooms, currents, and depth are not covered. Always check local notices before swimming.

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Where this data comes from

69 measurements from 1 monitoring station, 2016–2022. Retrieved from the listed programme (not the EPA Water Quality Portal). See data sources on 2026-08-20.

Collected and reported by

Bayerisches Landesamt für Umwelt (LfU) — Gewässerkundlicher Dienstgkd-by69 samples · —

Analytical methods

LfU Bayern GKD lake chemistry

Monitoring station identifiers (1)

2006

Authority classifications are shown as the authority published them. See where the data comes from and data sources.