Anchorage in Saint Lawrence River
Thwartway Island
Past nights from AIS in Jul–Aug 2024 and Jul–Aug 2025
Where boats stayed: 44.291° N, 76.151° W
10nights
9boats
Nights by wind direction
| From | Nights | Boats | Nights in 20 kt+ | Windiest night (area) |
|---|---|---|---|---|
| N | 2 | 1–2 | – | 10.1 ktgusts 22 kt |
| SE | 1 | 1–2 | – | 6.1 ktgusts 13.1 kt |
| S | 3 | 3 | – | 8.4 ktgusts 12.8 kt |
| SW | 3 | 3 | – | 7.4 ktgusts 14.7 kt |
| NW | 1 | 1–2 | – | 3.8 ktgusts 8.9 kt |
Nearby anchorages
- Anchorage off Juniper Island, Thwartway Island6 nights
- Anchorage off Juniper Island14 nights
- Anchorage off Island 32A4 nights
- Anchorage in Saint Lawrence River, Chub Island1 night
- Anchorage off Huckleberry Island, Grindstone8 nights
- Anchorage off Island 322 nights
- Halfmoon Bay, Island 862 nights
- Anchorage off Hay Island, Grindstone1 night
AIS shows only boats that carry it and that a receiver hears, so no boats on AIS never means an anchorage is empty or unsuitable. Boats that live here (at their own berth or mooring, or a week or more in one place) are left out, and boats in marinas and at piers are counted apart from the anchorage's nights. Not for navigation.