Lake Superior conditions for Shuniah, Ontario
Shuniah, Ontario
Good: best 5 PM to 9 PM, waves around 0.3 m (1.1 ft).
0.3 m
0.9 ft · sets 1.4 ft2 kt
NE · gusts 223 km
open water16 C
cool · 18 C on shore14 C
coolWhat you are in for
A friendly 0.3 m (1 ft) chop. Enough to feel it under you, not enough to slow you down or spill your coffee. It will feel chilly out there, around 14 C on the ski even though the shore reads 19 C. Splash top and a warm layer under it. You will cool off fast the moment you stop moving. Water at 14 C. Fine for a quick dip if you are brave, not somewhere to linger. Aim for 5 PM to 9 PM.
When to go today
light 7:13 AM - 8:40 PM5:00 PM to 9:00 PM
4 hours of excellent water. Best single hour is around 7 PM.
0.2m
9kt E 18°C0.2m
9kt E 18°C0.3m
10kt E 17°C0.4m
12kt ESE 17°C0.4m
10kt ESE 17°C0.4m
10kt ESE 17°C0.4m
9kt ESE 17°C0.4m
9kt ESE 17°C0.4m
9kt ESE 17°C0.4m
10kt ESE 17°C0.4m
7kt ESE 17°C0.4m
7kt E 17°C0.4m
7kt ENE 17°C0.4m
7kt ENE 18°C0.4m
7kt ENE 18°C0.4m
7kt E 18°C0.3m
6kt ENE 18°C0.3m
4kt ENE 18°C0.3m
3kt ENE 19°C0.3m
2kt ENE 19°C0.3m
2kt E 19°C0.3m
2kt ESE 18°C0.3m
2kt E 18°C0.3m
2kt NE 18°CMonday 7:00 PM
Daylight0.3 m
1 ft · sets to 1.5 ft2 kt
from the ENE · gusts 3 kt26 km
Short. Sheltered water.3.9 s
Longer, rolling water19 C
feels like 21 C14 C
Genuinely cold. Under an hour of use.12.2 km
Clear0
Stable airWhy this hour scores 91
Cool water
Water is 14 C. Survivable but genuinely cold. Assume you have well under an hour of useful movement if you end up in it.
Fully developed
The sea has stopped growing for this wind. It will not get worse unless the wind increases.
Comfortable
19 C on shore, feeling like 16 C on the ski. Splash top and a warm layer under it. You will cool off fast the moment you stop moving.
Wave height
Light chop at 0.3 m (1 ft), biggest sets around 0.5 m (1.5 ft). Comfortable.
Wind
Light at 2 knots from the ENE. Nothing to fight.
Why today is good
For sea-doo / personal watercraft today, this is a good day, scoring 80 out of 100 across daylight hours. Waves range from 0.3 m (1 ft) to 0.4 m (1.5 ft), with wind from the ESE gusting to 14 knots at its worst. Daylight runs 7:13 AM to 8:40 PM. The best window is 5:00 PM to 9:00 PM (4 hours), and the single best hour is around 7 PM. In that window the water runs to about 0.3 m (1.1 ft) with wind to 4 knots. Earlier in the day it only reaches good, so there is no advantage to launching at first light. What is working against you, at the worst of it: Visibility down to 0.3 km. Superior fog forms fast over cold water and it will hide the shoreline and other traffic. Do not go out without a chart plotter. Worth watching: The shore says 17 C, but moving across the water it will feel more like 12 C. Nice enough in the sun, nippy the moment you stop. Wetsuit or a proper drysuit top. A hoodie will be soaked and useless in ten minutes. Water is 14 C. Survivable but genuinely cold. Assume you have well under an hour of useful movement if you end up in it. Moderate chop at 0.4 m (1.3 ft), with sets to 0.6 m (2 ft). Manageable but you will feel it, and you will be slowing down into it. In your favour, at the best of it: 19 C on shore, feeling like 16 C on the ski. Splash top and a warm layer under it. You will cool off fast the moment you stop moving. Light at 2 knots from the ENE. Nothing to fight.
Fog
Visibility down to 0.3 km. Superior fog forms fast over cold water and it will hide the shoreline and other traffic. Do not go out without a chart plotter.
Cool on the water
The shore says 17 C, but moving across the water it will feel more like 12 C. Nice enough in the sun, nippy the moment you stop. Wetsuit or a proper drysuit top. A hoodie will be soaked and useless in ten minutes.
Cool water
Water is 14 C. Survivable but genuinely cold. Assume you have well under an hour of useful movement if you end up in it.
Wave height
Moderate chop at 0.4 m (1.3 ft), with sets to 0.6 m (2 ft). Manageable but you will feel it, and you will be slowing down into it.
Fully developed
The sea has stopped growing for this wind. It will not get worse unless the wind increases.
Comfortable
19 C on shore, feeling like 16 C on the ski. Splash top and a warm layer under it. You will cool off fast the moment you stop moving.
Wind
Light at 2 knots from the ENE. Nothing to fight.
Riders on the water
Nobody has reported conditions near here in the last 12 hours. If you go out, post what you find. Nothing beats somebody who was standing in it.
The next few days
Tomorrow
Sep 1 · light 7:15 AM to 8:38 PMGood: best 9 AM to 2 PM, waves around 0.3 m (1 ft).
0.3m
3kt ENE 18°C0.3m
1kt NE 18°C0.3m
3kt ESE 18°C0.3m
3kt SE 18°C0.3m
1kt SE 18°C0.2m
1kt ENE 17°C0.2m
1kt NNE 17°C0.2m
1kt NNE 17°C0.2m
2kt WNW 17°C0.2m
1kt NW 17°C0.2m
3kt WSW 19°C0.3m
8kt W 22°C0.3m
8kt WSW 23°C0.3m
11kt WSW 25°C0.3m
13kt W 26°C0.4m
14kt W 26°C0.4m
14kt W 26°C0.4m
13kt W 25°C0.4m
12kt W 25°C0.4m
11kt W 24°C0.4m
9kt W 23°C0.4m
8kt WNW 21°C0.4m
7kt WNW 20°C0.3m
6kt WNW 18°CTuesday 9:00 AM
Daylight0.2 m
0.8 ft · sets to 1.2 ft1 kt
from the NW · gusts 1 kt0 km
Very short. Little room for waves to build.3.9 s
Longer, rolling water17 C
feels like 19 C14 C
Genuinely cold. Under an hour of use.12.2 km
Clear0
Stable airWhy this hour scores 94
Cool water
Water is 14 C. Survivable but genuinely cold. Assume you have well under an hour of useful movement if you end up in it.
Comfortable
17 C on shore, feeling like 15 C on the ski. Splash top and a warm layer under it. You will cool off fast the moment you stop moving.
Wave height
Light chop at 0.2 m (0.8 ft), biggest sets around 0.4 m (1.2 ft). Comfortable.
Wind
Light at 1 knots from the NW. Nothing to fight.
8:00 AM to 9:00 AM: Poor, waves to 0.2 m (0.7 ft), wind to 2 knots, air 17 C
9:00 AM to 2:00 PM: Excellent, waves to 0.3 m (1 ft), wind to 11 knots, air 17 to 25 C
2:00 PM to 3:00 PM: Good, waves to 0.3 m (1.1 ft), wind to 13 knots, air 26 C
3:00 PM to 5:00 PM: Marginal, waves to 0.4 m (1.3 ft), wind to 14 knots, air 26 C
5:00 PM to 9:00 PM: Good, waves to 0.4 m (1.5 ft), wind to 13 knots, air 23 to 25 C
Light ripple at 0.2 m (0.8 ft), just enough to know you are on water rather than a mirror. It will feel chilly out there, around 15 C on the ski even though the shore reads 26 C. Splash top and a warm layer under it. You will cool off fast the moment you stop moving. Water at 14 C. Fine for a quick dip if you are brave, not somewhere to linger. Aim for 9 AM to 2 PM. It goes downhill after that, so do not be the last one off the water.
For sea-doo / personal watercraft tomorrow, this is a good day, scoring 77 out of 100 across daylight hours. Waves range from 0.2 m (0.7 ft) to 0.4 m (1.5 ft), with wind from the WNW gusting to 22 knots at its worst. Daylight runs 7:15 AM to 8:38 PM. The best window is 9:00 AM to 2:00 PM (5 hours), and the single best hour is around 9 AM. In that window the water runs to about 0.3 m (1 ft) with wind to 11 knots. After 2:00 PM the best you will get is good, with the water running toward 0.3 m (1.1 ft), so plan to be back on the trailer by then. Earlier in the day it only reaches poor, so there is no advantage to launching at first light. Conditions flip back and forth through the day rather than settling, so treat any window as provisional and keep checking. What is working against you, at the worst of it: Visibility down to 0.1 km. Superior fog forms fast over cold water and it will hide the shoreline and other traffic. Do not go out without a chart plotter. Worth watching: The shore says 17 C, but moving across the water it will feel more like 14 C. Nice enough in the sun, nippy the moment you stop. Splash top and a warm layer under it. You will cool off fast the moment you stop moving. Water is 14 C. Survivable but genuinely cold. Assume you have well under an hour of useful movement if you end up in it. In your favour, at the best of it: 17 C on shore, feeling like 15 C on the ski. Splash top and a warm layer under it. You will cool off fast the moment you stop moving. Light chop at 0.2 m (0.8 ft), biggest sets around 0.4 m (1.2 ft). Comfortable. Light at 1 knots from the NW. Nothing to fight.
What drove this callFog
Visibility down to 0.1 km. Superior fog forms fast over cold water and it will hide the shoreline and other traffic. Do not go out without a chart plotter.
Cool on the water
The shore says 17 C, but moving across the water it will feel more like 14 C. Nice enough in the sun, nippy the moment you stop. Splash top and a warm layer under it. You will cool off fast the moment you stop moving.
Cool water
Water is 14 C. Survivable but genuinely cold. Assume you have well under an hour of useful movement if you end up in it.
Comfortable
17 C on shore, feeling like 15 C on the ski. Splash top and a warm layer under it. You will cool off fast the moment you stop moving.
Wave height
Light chop at 0.2 m (0.8 ft), biggest sets around 0.4 m (1.2 ft). Comfortable.
Wind
Light at 1 knots from the NW. Nothing to fight.
Wednesday, Sep 2
Sep 2 · light 7:16 AM to 8:36 PMExcellent: best most of the day, waves around 0.2 m (0.6 ft).
0.3m
5kt W 17°C0.3m
8kt WSW 17°C0.2m
7kt W 17°C0.2m
7kt W 16°C0.2m
7kt W 16°C0.2m
7kt W 15°C0.2m
6kt W 14°C0.2m
4kt W 14°C0.1m
5kt W 14°C0.1m
6kt W 16°C0.1m
6kt WNW 18°C0.1m
6kt NW 19°C0.1m
7kt NW 21°C0.1m
6kt NNW 23°C0.1m
6kt NNW 24°C0.1m
5kt NW 25°C0.1m
3kt NNW 25°C0.2m
2kt SE 24°C0.2m
5kt SSE 23°C0.2m
4kt SSE 22°C0.2m
3kt S 20°C0.2m
2kt SW 17°C0.2m
2kt W 16°C0.2m
3kt WNW 16°CWednesday 3:00 PM
Daylight0.1 m
0.3 ft · sets to 0.5 ft5 kt
from the NW · gusts 7 kt0 km
Very short. Little room for waves to build.2.8 s
Longer, rolling water25 C
feels like 25 C14 C
Genuinely cold. Under an hour of use.43 km
Clear10
Stable airWhy this hour scores 97
Cool water
Water is 14 C. Survivable but genuinely cold. Assume you have well under an hour of useful movement if you end up in it.
Comfortable
25 C on shore, feeling like 21 C on the ski. Light layer you can shed. Comfortable moving, a bit cool sitting still.
Steady wind
Gusts only reach 7 knots, so the air is smooth and predictable.
Wave height
Near flat at 0.1 m (0.3 ft). This is as good as this lake gets.
Wind
Light at 5 knots from the NW. Nothing to fight.
8:00 AM to 11:00 AM: Good, waves to 0.1 m (0.4 ft), wind to 6 knots, air 14 to 18 C
11:00 AM to 9:00 PM: Excellent, waves to 0.2 m (0.6 ft), wind to 7 knots, air 19 to 25 C
Glass. The kind of morning where you can see the bottom going past and the horizon has no texture at all. It will feel chilly out there, around 14 C on the ski even though the shore reads 25 C. Splash top and a warm layer under it. You will cool off fast the moment you stop moving. Water at 14 C. Fine for a quick dip if you are brave, not somewhere to linger. Aim for 11 AM to 9 PM.
For sea-doo / personal watercraft on Wednesday, Sep 2, this is an excellent day, scoring 92 out of 100 across daylight hours. Waves range from 0.1 m (0.3 ft) to 0.2 m (0.6 ft), with wind from the W gusting to 12 knots at its worst. Daylight runs 7:16 AM to 8:36 PM. The best window is 11:00 AM to 9:00 PM (10 hours), and the single best hour is around 3 PM. In that window the water runs to about 0.2 m (0.6 ft) with wind to 7 knots. Earlier in the day it only reaches good, so there is no advantage to launching at first light. Worth watching: The shore says 14 C, but moving across the water it will feel more like 9 C. Nice enough in the sun, nippy the moment you stop. Wetsuit or a proper drysuit top. A hoodie will be soaked and useless in ten minutes. Water is 14 C. Survivable but genuinely cold. Assume you have well under an hour of useful movement if you end up in it. In your favour, at the best of it: 25 C on shore, feeling like 21 C on the ski. Light layer you can shed. Comfortable moving, a bit cool sitting still. Gusts only reach 7 knots, so the air is smooth and predictable. Near flat at 0.1 m (0.3 ft). This is as good as this lake gets. Light at 5 knots from the NW. Nothing to fight.
What drove this callCool on the water
The shore says 14 C, but moving across the water it will feel more like 9 C. Nice enough in the sun, nippy the moment you stop. Wetsuit or a proper drysuit top. A hoodie will be soaked and useless in ten minutes.
Cool water
Water is 14 C. Survivable but genuinely cold. Assume you have well under an hour of useful movement if you end up in it.
Comfortable
25 C on shore, feeling like 21 C on the ski. Light layer you can shed. Comfortable moving, a bit cool sitting still.
Steady wind
Gusts only reach 7 knots, so the air is smooth and predictable.
Wave height
Near flat at 0.1 m (0.3 ft). This is as good as this lake gets.
Wind
Light at 5 knots from the NW. Nothing to fight.
Thursday, Sep 3
Sep 3 · light 7:17 AM to 8:34 PMExcellent: best most of the day, waves around 0.2 m (0.7 ft).
0.2m
3kt NW 15°C0.1m
3kt NW 15°C0.1m
3kt NNW 14°C0.1m
2kt N 14°C0.1m
2kt N 13°C0.1m
3kt N 13°C0.1m
2kt N 13°C0.1m
2kt NNW 13°C0.0m
2kt NNE 13°C0.0m
3kt NE 16°C0.1m
3kt ENE 18°C0.1m
4kt E 19°C0.1m
5kt ESE 19°C0.1m
6kt ESE 20°C0.1m
5kt ESE 20°C0.2m
6kt ESE 20°C0.2m
7kt SE 21°C0.2m
6kt ESE 20°C0.2m
5kt ESE 20°C0.1m
3kt ESE 19°C0.0m
2kt E 16°C0.0m
2kt ENE 14°C0.0m
2kt NE 14°C0.0m
1kt ENE 14°CThursday 12:00 PM
Daylight · sheltered by Isle Royale0.1 m
0.3 ft · sets to 0.5 ft5 kt
from the ESE · gusts 5 kt36 km
Short. Sheltered water.2.1 s
Longer, rolling water19 C
feels like 19 C14 C
Genuinely cold. Under an hour of use.24.1 km
Clear0
Stable airWhy this hour scores 95
Cool water
Water is 14 C. Survivable but genuinely cold. Assume you have well under an hour of useful movement if you end up in it.
Comfortable
19 C on shore, feeling like 14 C on the ski. Splash top and a warm layer under it. You will cool off fast the moment you stop moving.
Steady wind
Gusts only reach 5 knots, so the air is smooth and predictable.
Wave height
Near flat at 0.1 m (0.3 ft). This is as good as this lake gets.
Wind
Light at 5 knots from the ESE. Nothing to fight.
8:00 AM to 12:00 PM: Good, waves to 0.1 m (0.2 ft), wind to 4 knots, air 13 to 19 C
12:00 PM to 8:00 PM: Excellent, waves to 0.2 m (0.7 ft), wind to 7 knots, air 19 to 21 C
8:00 PM to 9:00 PM: Good, waves to 0.0 m (0.1 ft), wind to 2 knots, air 16 C
Glass. The kind of morning where you can see the bottom going past and the horizon has no texture at all. It will feel chilly out there, around 14 C on the ski even though the shore reads 21 C. Splash top and a warm layer under it. You will cool off fast the moment you stop moving. Water at 14 C. Fine for a quick dip if you are brave, not somewhere to linger. Aim for 12 PM to 8 PM. It goes downhill after that, so do not be the last one off the water.
For sea-doo / personal watercraft on Thursday, Sep 3, this is an excellent day, scoring 89 out of 100 across daylight hours. Waves range from 0.0 m (0.1 ft) to 0.2 m (0.7 ft), with wind from the NNE gusting to 7 knots at its worst. Daylight runs 7:17 AM to 8:34 PM. The best window is 12:00 PM to 8:00 PM (8 hours), and the single best hour is around 12 PM. In that window the water runs to about 0.2 m (0.7 ft) with wind to 7 knots. After 8:00 PM the best you will get is good, with the water running toward 0.0 m (0.1 ft), so plan to be back on the trailer by then. Earlier in the day it only reaches good, so there is no advantage to launching at first light. Worth watching: The shore says 13 C, but moving across the water it will feel more like 9 C. Nice enough in the sun, nippy the moment you stop. Wetsuit or a proper drysuit top. A hoodie will be soaked and useless in ten minutes. Water is 14 C. Survivable but genuinely cold. Assume you have well under an hour of useful movement if you end up in it. In your favour, at the best of it: 19 C on shore, feeling like 14 C on the ski. Splash top and a warm layer under it. You will cool off fast the moment you stop moving. Gusts only reach 5 knots, so the air is smooth and predictable. Near flat at 0.1 m (0.3 ft). This is as good as this lake gets. Light at 5 knots from the ESE. Nothing to fight.
What drove this callCool on the water
The shore says 13 C, but moving across the water it will feel more like 9 C. Nice enough in the sun, nippy the moment you stop. Wetsuit or a proper drysuit top. A hoodie will be soaked and useless in ten minutes.
Cool water
Water is 14 C. Survivable but genuinely cold. Assume you have well under an hour of useful movement if you end up in it.
Comfortable
19 C on shore, feeling like 14 C on the ski. Splash top and a warm layer under it. You will cool off fast the moment you stop moving.
Steady wind
Gusts only reach 5 knots, so the air is smooth and predictable.
Wave height
Near flat at 0.1 m (0.3 ft). This is as good as this lake gets.
Wind
Light at 5 knots from the ESE. Nothing to fight.
This is planning information, not a substitute for your own judgement on the day.