Two calendars land on the same week
Climate Week NYC runs September 20 to 27, 2026. The UN General Assembly's High-Level Week runs September 18 to 28. The two calendars share September 20 to 27, and the general debate covers September 22 to 26 and September 28.
Climate Group runs the overlap on purpose. Its own FAQ answers the question directly: "Why do you run Climate Week NYC during UNGA? That's the time when New York is at its busiest, and hotel rooms at their priciest." The same FAQ states that many of the week's key audiences sit in New York for the General Assembly.
The General Assembly adds its own hotel demand. The High-Level Week schedule carries a high-level meeting on climate action and the just transition on September 23. Climate Group's about page notes that the 2026 dates coincide with Yom Kippur and calls the overlap unavoidable.
What the badge covers
The official Climate Week calendar lists 1,259 entries. Of those, 872 carry a Public tag and 737 are public and in person. Climate Group owns the Opening Ceremony and The Hub Live. Independent organizations produce the rest.
Two pieces of the week need a ticket or an invitation. The Hub Live interactive programme takes ticketed registration at USD $1,100 per person, and the Opening Ceremony admits by invitation. Both stream online. The rest of the calendar sits with individual hosts, and the Public tag marks the sessions that accept outside registration.
Volume drives the week. Tuesday, September 22 carries 196 public in-person events and Wednesday, September 23 carries 192.
Where the programme sits
Manhattan carries 609 of the 872 public entries. Brooklyn carries 50, Queens 42, the Bronx 11 and Staten Island 3. Seventy-six entries run online.
Inside Manhattan the addresses cluster by postcode. Zip 10001 holds 87 public in-person entries, the densest in the city. Zip 10009 holds 42 and 10018 holds 37. One address carries much of the load: 134 West 29th Street hosts 48 public entries. Climate Week's own lodging guidance names midtown and downtown Manhattan, which matches the distribution.
Which properties take the institutional bookings
Three calendar entries sit at hotel addresses. The Loft at Virgin Hotels New York City, 1227 Broadway, hosts Innovate for Impact NYC 2026 at 09:00 on Monday, September 21, and a private session, Pura Vida NYC: The Reset Experience, at 18:00 the same day. One Hotel, Brooklyn Bridge, 60 Furman Street, hosts the private session Hot in the Cities at 08:30 on Thursday, September 24.
The corporate event-space side is denser. One Rockefeller Plaza carries eight calendar entries. Convene at 75 Rockefeller Plaza carries Ceres at Climate Week NYC and further sessions. One Liberty Plaza, 165 Broadway, carries the New York City Economic Development Corporation's Sustainable Cities Summit at 12:00 on Thursday, September 24. Five Penn Plaza carries People Positive: Measuring the Social Value of Buildings at 17:00 on Tuesday, September 22.
What the week costs a property
Climate Week NYC offers no hotel blocks. Its guidance sends attendees to midtown or downtown Manhattan near a train or bus station. The week's registration covers events, so each attendee arranges a room directly.
The calendar front-loads demand. It carries 196 public in-person events on Tuesday and 192 on Wednesday, then falls to 40 on Saturday and 22 on Sunday.
Climate Group plans more than a year ahead. Its FAQ states that suppliers, venues and dates for 2026 were already chosen, and that hotel and event-space prices would sit at similar levels even if the week were decoupled from the UNGA.
The strain that lands at the desk
A property in the midtown or downtown bands carries two guest lists across the same week. Climate Week runs on individual registrations with no block. Climate Group states why in its FAQ: many of its key audiences will already be in New York for the General Assembly, so the two programmes line up.
Climate Group states the pricing effect on its own site. New York is at its busiest and rooms are at their priciest, and the week is scheduled there on purpose.
The official calendar does not publish per-property booking data. Any figure below the submarket level needs the operator's own numbers.