Bay Lake

Higher than usual

Water level is higher than usual for mid-September and rising.

Low (6.89m)Normal rangeHigh (7.17m)

Current Weather

2d ago

13°CCloudy

Wind NNW 22 km/h

Humidity 63%

Chance of showers

Environment Canada — Kirkland Lake - Temiskaming Shores - Temagami

vs. Last Year

No data available

7-Day Trend

↑Rising

Up 9.1 cm over the past week

+9.1 cm over 7 days

Seasonal Position

88th percentile

Based on 35 years of records

Seasonal Outlook

Typical next 7 days

This lake usually holds steady over the next week.

Typical next 14 days

Over two weeks, levels typically drops slightly.

Tracking

This year is moving faster than usual.

Based on 35 years of seasonal patterns. This is a historical seasonal pattern, not a forecast.

Fish Consumption Advisories (5 species)

The following consumption advisories are in effect for fish caught in Bay Lake.

Cisco (Lake Herring)

Contaminant	Size	General pop.	Sensitive pop.
Mercury	25-30 cm	16/month	8/month
Mercury	30-35 cm	16/month	4/month
Mercury	20-25 cm	16/month	8/month
Mercury	35-40 cm	16/month	4/month
Mercury	40-45 cm	16/month	4/month

⚠Northern Pike

Contaminant	Size	General pop.	Sensitive pop.
Mercury	20-25 cm	16/month	8/month
Mercury	25-30 cm	16/month	8/month
Mercury	30-35 cm	16/month	4/month
Mercury	35-40 cm	12/month	4/month
Mercury	40-45 cm	12/month	4/month
Mercury	45-50 cm	8/month	4/month
Mercury	50-55 cm	8/month	Do not eat
Mercury	55-60 cm	4/month	Do not eat
Mercury	60-65 cm	4/month	Do not eat

⚠Smallmouth Bass

Contaminant	Size	General pop.	Sensitive pop.
Mercury	45-50 cm	2/month	Do not eat
Mercury	35-40 cm	8/month	Do not eat
Mercury	40-45 cm	4/month	Do not eat

⚠Walleye

Contaminant	Size	General pop.	Sensitive pop.
Mercury	65-70 cm	Do not eat	Do not eat
Mercury	45-50 cm	2/month	Do not eat
Mercury	50-55 cm	2/month	Do not eat
Mercury	55-60 cm	2/month	Do not eat
Mercury	60-65 cm	Do not eat	Do not eat
Mercury	15-20 cm	8/month	4/month
Mercury	20-25 cm	8/month	Do not eat
Mercury	25-30 cm	4/month	Do not eat
Mercury	30-35 cm	4/month	Do not eat
Mercury	35-40 cm	4/month	Do not eat
Mercury	40-45 cm	4/month	Do not eat

Yellow Perch

Contaminant	Size	General pop.	Sensitive pop.
Mercury	20-25 cm	16/month	4/month
Mercury	15-20 cm	16/month	8/month

Source: Guide to Eating Ontario Fish (2025). Advisory data is updated annually.

Lake Profile

Est. average depth20.1 m

Estimated from HydroLAKES v1.0 (Messager et al., 2016). Modeled geo-statistical estimate, not a direct survey measurement.

Water Level — Last 30 Days

Technical details

Current level: 7.11 m
Reference value: 7.10 m (rolling_6h_mean)
Percentile for date: 88th percentile
Years of record: 35
Source station: BAY LAKE AT LATCHFORD (02JD013)
Est. average depth: 20.1 m
Relationship type: direct_lake
Mapping confidence: medium
Today's normal range: 7.00–7.08 m
Same-date historical range: 6.89–7.17 m
30-day change: +6.6 cm
Data confidence: medium
Observed at: Sep 20, 2026
Last snapshot: Sep 20, 2026

Data source: ECCC Water Office — Station 02JD013. Water level readings are provisional and subject to revision. This is not a navigation or flood-warning service.