Rotoroa
Rotoroa in South Island, New Zealand has official water-quality measurements, not a LakeQuality A–F grade. Water clarity: 15.9 m visibility. Chlorophyll-a (algae): 0.1 µg/L.
- Clarity
- 15.9 m
Why Rotoroa has no A–F grade
Rotoroa in New Zealand is published with the authority's own measurements, not a LakeQuality letter. official authority class; not a LakeQuality A–F letter Sampling here has recorded water clarity and algae (chlorophyll-a), but not phosphorus.
A letter on the LakeQuality scale would be an invention, not an official class. Everything below that has been measured is still reported on this page.
Monitoring: the GLORIA inland-lake matchup archive (PANGAEA 948492).
Rotoroa is a lake in South Island County, New Zealand.
Source: the GLORIA inland-lake matchup archive (PANGAEA 948492) — not the EPA Water Quality Portal, last sampled 2020-02-13. Grade methodology: LakeGrade methodology.
Watch Rotoroa water quality
Subscribe for LakeQuality updates by email. No spam, unsubscribe anytime.
Swimming Safety
Not ratedLimited data
Not rated for swimming — there is not enough monitoring data to judge this lake
Water quality measurements for Rotoroa
These readings exist but do not meet the evidence bar for an A–F grade — see why.
Crystal clear, you can see 52.2 ft down. Chlorophyll-a: 0.1 µg/L. Trophic State Index: 13.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 15.9 m | Not graded |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | 0.1 µg/L | Not graded |
| Trophic State Index (TSI) | 13 | Oligotrophic |
Low nutrients, clear water, excellent for swimming
Where to stay near Rotoroa
Compare lakeside cabins, hotels, and vacation rentals near Rotoroa in South Island, New Zealand — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.
Top-rated places to stay near Rotoroa
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Fishing Rotoroa
Frequently asked questions about Rotoroa
What is the water quality of Rotoroa?
- Rotoroa in South Island, New Zealand has official water-quality measurements, not a LakeQuality A–F grade. Water clarity: 15.9 m visibility. Chlorophyll-a (algae): 0.1 µg/L.
Is Rotoroa safe to swim in?
- Rotoroa 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.
Explore Rotoroa across LakeGrade
More lakes in New Zealand
Where this data comes from
6 measurements from 3 monitoring stations, 2020. Retrieved from the listed programme (not the EPA Water Quality Portal). See data sources on 2026-08-20.
Collected and reported by
- GLORIA (PANGAEA 948492)
pangaea-gloria6 samples · 2020
Analytical methods
- PANGAEA GLORIA 2022 inland-lake chlorophyll-a and Secchi
Monitoring station identifiers (3)
GID_2445GID_2446GID_2447
Authority classifications are stored separately from LakeQuality A–F letters and are never blended. See how grades are calculated and data sources.