Overview

Thousand Islands is a spot on the St. Lawrence River in the Thousand Islands region of northern New York State. This majestic river at the US-Canadian border offers a unique setting with its hundreds of islands. The river current and regular winds create good sailing conditions. Spectacular scenery.

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Spot forecast for Thousand Islands / St. Lawrence River

Sunrise 07:25 · Sunset 18:11

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< 7 kn7–12 kn13–20 kn21–30 kn31–40 kn41+ kn Gusts Your minimum: 7 kn

Forecasts provided by Open-Meteo

Thousand Islands / St. Lawrence River: when to go?

Rideable days and hours computed for a minimum wind of 7 knots · log in to set your own (foil, twin-tip…)

Season · peak

205h

in August · 26 rideable days

The season runs from June to August, peaking in August: 25 rideable days a month and 205 hours of usable wind, at 26 °C. The low point is September, at 19 days.

Rideable days per month

Wind strength when it is rideable

7-12 knots · 91%13-20 knots · 9%21-30 knots · under 1%

When the spot works, wind sits mostly between 7 and 12 knots — 91% of rideable hours. Big-kite territory. The coldest month is January, at -2 °C. The wettest month is July, with 126 mm.

Monthly averages: Thousand Islands / St. Lawrence River

Monthly averages — Thousand Islands / St. Lawrence River — averaged over 2 years of records — Weather data by Open-Meteo.com — How it is calculated
Month	Rideable days	Usable wind	Temperature	Rain
January	20.0	161 h	-2 °C	68 mm
February	21.0	156 h	0 °C	52 mm
March	27.0	240 h	8 °C	61 mm
April	25.0	249 h	12 °C	81 mm
May	21.5	178 h	19 °C	46 mm
June	25.0	227 h	25 °C	28 mm
July	23.0	170 h	28 °C	126 mm
August	26.0	205 h	25 °C	86 mm
September	19.0	127 h	23 °C	50 mm
October	21.0	153 h	16 °C	84 mm
November	19.0	149 h	7 °C	76 mm
December	19.0	143 h	-1 °C	75 mm

Photo gallery of Thousand Islands / St. Lawrence River

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Technical details of Thousand Islands / St. Lawrence River spot

The spot works with winds from N, NNE, NE, ENE, E, ESE, SE, SSE, S, SSW, SW, WSW, W, WNW, NW, NNW.

Rideable Not rideable

Spot opening date · Required level

Spot opening date: Open all year round
Required level: Intermediate

On the water

St. Lawrence River waters with constant river current. Moderate chop. Navigation between islands offering sheltered and exposed areas. Variable depth with shallows near islands. Fresh and cold water.

Hazards

Constant river current that can be strong. Heavy maritime traffic (cargo ships, recreational boats). Rocks and shallows near islands. Very cold waters. Border zone with regulations to follow.

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GRENADIER ISLAND11.4 kmsource Environment Canada

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Readings from GRENADIER ISLAND weather station are reserved for Premium members.

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Additional stations

ER-21 Landsdowne7.8 km

Readings reserved for Premium members
source Environment Canada
Ogimet - Grenadier Island (Canada)8.1 km

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source ogimet

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Webcams near Thousand Islands / St. Lawrence River

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Nearby spots

All spots: État de New York

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Thousand Islands / St. Lawrence River kitesurf, wingfoil and windsurf spot