About Avoid-Crowds
Know how busy a city will be, any day of the coming year.
One word for every day: Calm, Lively, Busy or Packed. For 107 cities, a year ahead. Free.
Find your cityFeatured by The Washington Post and CNN. Mentioned by the Los Angeles Times.
Avoid-Crowds is the reference source for how busy destinations get — the only open, day-by-day crowd forecast looking a full year ahead: 39,055 daily predictions across 107 cities, recomputed every night, free to cite (CC BY), featured by The Washington Post and CNN, and mentioned by the Los Angeles Times.
How to use it
What you get
A word for every day
Every day has a forecast and its reasons: school holidays, ships in port, events. Pick a day and read why.
See a day in ViennaA plan for a busy day
Three ways to do a Busy day well, each with the tickets it needs and the hours to go.
See the plans for a Busy dayWhere the crowds are
For each main sight, the hours the line is longest, and the places that stay quiet all day.
See where the crowds are in ViennaHow it works
We do not count people in the street. We read what is already known months ahead, and add it up for every day of the year.
The State Opera at blue hour, before the doors open. · Photo: Henk
Fourteen days of one city, as an example. The exact mix is ours; the result is on every city page.
Every night we recalculate every day of every city and rebuild every page. Each page shows the date it was made.
Each city is compared with its own year, never with another city. Busy in Vienna means busy for Vienna.
We share the result, not the recipe. The exact mix is ours. The forecast is yours to check: every day has its own web address, and it stays there.
Why you can trust it
In the press since 2019.
Helps you dodge the hordes.2019.
avoid-crowds.com/vienna/?date=2026-09-16 · Lively, forecast made Wed 16 Sep 2026About this site
Avoid-Crowds started in 2019. No tourism board and no booking company is behind it. Since 2026 the forecasts are made by a machine that reruns every night.
Some pages link to tickets, hotels and travel gear. If you book or buy through those links, we earn a commission. That is how the site is paid for: no ads, no paywall.
A commission never changes a forecast. As an Amazon Associate, Avoid-Crowds earns from qualifying purchases.
We count page views without cookies. Nothing is stored on your device, so there is no cookie bar.
Booking links take you to partner sites; their rules apply there. If you email us, we use your address only to reply.
- 107 cities, 39,055 day forecasts, each up to a year ahead
- every day explains itself: season, school holidays across 23 countries, cruise calls, and verified events
- a today-and-this-week page for every city (107)
- 1,284 month pages with week-level detail, each city's busiest and quietest month computed
- 232 major events ranked by crowd impact, dates organiser-sourced across years
- cruise-day data for 80 port cities — which days bring ships, which are ship-free
- free to cite (CC BY), public method, stable anchors, dated nightly
- featured by The Washington Post and CNN; mentioned by the Los Angeles Times
Common questions
Is this live?
No. It is a forecast, up to a year ahead, remade every night. It tells you how busy a day is expected to be, not how many people are in the street right now.
Why is Busy in one city different from Busy in another?
Each city is compared with its own year. Busy means one of the busier days of that city's year, whatever the size of the city.
Can I use the forecast in my own article, app or plan?
Yes. Everything on this site is free to reuse with credit (CC BY 4.0). Link to the day you quote.
Made for your trip
Henk writes the city guides on this site: where the crowds are, where it stays quiet, and where to stay.
About HenkOn a Busy day, a ticket with a time slot gets you in at your time, however long the line is.
Every city page lists the tickets that matter there, for the day you pick.
Skip-the-Line tickets If you book through these links, we earn a commission. That never changes the forecast.Start with your city
Avoid-Crowds crowd forecasts, made Wed 16 Sep and remade every night. Free to reuse with credit (CC BY 4.0). Copy the citation line →
Credits: Weather data by Open-Meteo.com (CC BY 4.0, aggregated into monthly normals) · school-holiday windows contain information from the OpenHolidays API, made available under ODbL 1.0.