New York State Parks · New York

Wellesley Island State Park

New York State Parks · New York, United States

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Sites
414
Group sites
Yes
Drinking water
Yes
Restrooms
Yes
Showers
Yes
Dump station
Yes
Laundry
Yes
Pets
Yes
Elevation
354 ft
Dark sky
Bortle class 3
Cell coverage
T-Mobile weak · AT&T good · Verizon good (carriers' 4G LTE filings to the FCC, 2025-12; not measured here)
Lake
St. Lawrence River
Nearest town
Fineview
Address
44927 Cross Island Road, Fineview, NY 13640
Phone
(315) 482-2722
Activities
Camping, Group Camping

About

A large Thousand Islands campground on the St. Lawrence River, with 414 tent/RV campsites plus cabins and cottages. One loop offers electric hookups, another offers full hookups including sewer; most other loops have no hookups. Bathhouses with hot showers, dump stations, a camp store, laundry, marina, and beach are all on site. Up to 2 leashed pets are allowed in most areas (not in cottages) with proof of current rabies vaccination.

Fees

Standard state park camping rates apply: about $17/night base rate plus a $7.25 reservation fee, plus surcharges of $7-15/night depending on hookup type in loops that offer them. A $5/night non-resident surcharge applies to out-of-state campers. Confirm current pricing and hookup availability when you book.

Weather, month by month

MonthTypical highTypical lowColdest nightHottest dayYears with a night below 32°F
January27°16°-10°43°11 of 11
February30°14°-17°51°11 of 11
March40°26°4°61°11 of 11
April50°36°23°79°6 of 11
May64°48°34°82°0 of 11
June71°57°46°85°0 of 11
July80°66°56°93°0 of 11
August77°65°57°86°0 of 11
September72°58°49°83°0 of 11
October57°46°34°74°0 of 10
November42°33°16°61°8 of 10
December34°25°8°56°10 of 10

Mid-month figures from 2016–2026 of daily weather at this spot (ERA5 reanalysis via Open-Meteo, CC BY 4.0), in °F. Typical is the median; coldest and hottest are the extremes seen.

Nearby campgrounds

All public campgrounds in New York · Every state and province · Facts read from the operator 2026-08-25. Confirm fees, rules and current status with the operator before you go.