26 demand-moving dates for the Vienna hotel market, compiled 2026-07-10 from public sources. 12 are rated high impact. Dates marked "verify" follow the event's recurring pattern but are not yet officially confirmed — check the source before pricing against them.
| Dates | Event | Impact | Where | Source |
|---|---|---|---|---|
| 2026-07-04 → 2026-09-06 | Film Festival Rathausplatz (36th open-air music film festival) festival Free nightly open-air season on Rathausplatz; supports summer leisure ambience more than direct room nights. | low | Rathausplatz | source ↗ |
| 2026-07-12 → 2026-07-17 | IFORS 2026 - 24th International Conference on Operations Research conference Flagship-category congress (3,000+ delegates) per Vienna Convention Bureau highlights. | medium | University of Vienna | source ↗ |
| 2026-08-22 → 2026-08-26 | AMEE 2026 - International Association for Health Professions Education conference conference 3,000+ delegates; rare large congress in the August trough - outsized displacement effect. | medium | Austria Center Vienna | source ↗ |
| 2026-09-14 → 2026-09-18 | 70th IAEA General Conference civic Annual gathering of delegations from ~180 member states; strong diplomatic/government demand around Kaisermuehlen and city centre. | medium | Vienna International Centre | source ↗ |
| 2026-09-30 → 2026-10-03 | EADV Congress 2026 (European Academy of Dermatology & Venereology) conference ~17,000 delegates per Vienna Convention Bureau - one of the largest medical congresses of the window; citywide compression. | high | Austria Center Vienna | source ↗ |
| 2026-10-01 → 2026-10-04 | EURETINA 2026 (European Society of Retina Specialists congress) conference Major ophthalmology congress overlapping EADV's tail - early October 2026 is the tightest MICE squeeze of the window. | high | VIECON (Messe Wien / Vienna Congress & Convention Center) | source ↗ |
| 2026-10-09 → 2026-10-12 | Annual Meeting of the German, Austrian and Swiss Societies for Hematology and Medical Oncology conference 3,000+ delegates per Vienna Convention Bureau highlights. | medium | Austria Center Vienna | source ↗ |
| 2026-10-17 → 2026-10-21 | EANM'26 - 39th Annual Congress of the European Association of Nuclear Medicine conference 8,600+ expected attendees; confirmed on the official congress site. | high | Austria Center Vienna | source ↗ |
| 2026-10-24 → 2026-11-01 | Erste Bank Open (ATP 500 tennis) sport Confirmed at Wiener Stadthalle incl. qualifying; main draw from 26 Oct. | medium | Wiener Stadthalle | source ↗ |
| 2026-10-24 → 2026-10-26 | Austrian National Day long weekend holiday-compression 26 Oct 2026 falls on a Monday - 3-day weekend, free museum entry and open-house events drive domestic city trips. | low | Citywide | source ↗ |
| 2026-11-08 → 2026-11-11 | ISPOR Europe 2026 (health economics & outcomes research) conference 3,000+ delegates per Vienna Convention Bureau; falls in shoulder season, so high displacement. | high | Austria Center Vienna | source ↗ |
| 2026-11-10 → 2026-11-12 | Enlit Europe 2026 (energy industry trade fair) trade-fair Large pan-European utilities/energy exhibition; overlaps ISPOR - strong mid-November corporate compression. | medium | VIECON (Messe Wien) | source ↗ |
| 2026-11-13 → 2026-12-26 | Vienna Christmas markets season (Christkindlmarkt am Rathausplatz and satellites) festival Rathausplatz market 13 Nov - 26 Dec 2026; other markets open progressively from mid-November. The single biggest leisure demand engine of Vienna's year, strongest on Advent weekends. | high | Rathausplatz / Schoenbrunn / Belvedere / citywide | source ↗ |
| 2026-11-21 → 2026-11-22 | VIECC Vienna Comic Con 2026 trade-fair Confirmed; ~30-40k visitors, mostly regional. | low | Messe Wien, Halls A & B | source ↗ |
| 2026-12-31 | New Year's Eve: Silvesterpfad city trail festival Annual free NYE trail across the Innere Stadt (stages, Rathausplatz waltz at midnight); anchor of a multi-night NYE hotel peak. | high | Innere Stadt / Prater | source ↗ |
| 2027-01-01 | Vienna Philharmonic New Year's Concert 2027 music 1 Jan 2027, Tugan Sokhiev conducting; preceded by 30-31 Dec preview/NYE concerts. Ticket lottery ran Feb 2026 - extreme-ADR luxury demand. | high | Musikverein | source ↗ |
| 2027-01-08 → 2027-02-09 verify | Vienna ball season peak (Fasching: Kaiserball, Philharmonikerball, Juristenball, etc.) festival 400+ balls across January-early February 2027; peak weeks mid-Jan to Opernball. Range estimated from the carnival calendar (season ends Ash Wednesday, 10 Feb 2027) - individual ball dates publish rolling. | medium | Hofburg / Musikverein / Rathaus / citywide | source ↗ |
| 2027-02-04 | Wiener Opernball 2027 (Vienna Opera Ball) festival Confirmed Thursday 4 Feb 2027; ~5,000 guests, apex of the ball season and of winter luxury demand. | high | Wiener Staatsoper | source ↗ |
| 2027-03-03 → 2027-03-07 | ECR 2027 - European Congress of Radiology conference Confirmed on the official ESR congress site; ~20k participants, Vienna's perennial largest medical congress. | high | Austria Center Vienna | source ↗ |
| 2027-04-04 → 2027-04-09 | EGU General Assembly 2027 (European Geosciences Union) conference 4-9 Apr 2027 per Vienna Convention Bureau meeting calendar; ~20,000 attendees. Note it coincides with the week after Easter (Easter Monday 29 Mar). | high | Austria Center Vienna | source ↗ |
| 2027-04-17 → 2027-04-18 | Vienna City Marathon 2027 (44th) sport Race Sunday 18 Apr 2027 with Saturday side races and expo; ~45k participants across formats. | high | UNO City start / Ringstrasse finish, citywide | source ↗ |
| 2027-05-06 → 2027-05-28 | May-June long-weekend cluster: Ascension, Whit Monday, Corpus Christi holiday-compression Ascension Thu 6 May, Whit Monday 17 May, Corpus Christi Thu 27 May 2027 - three bridge weekends in four weeks; strong German/Austrian short-break inbound. | medium | Citywide | source ↗ |
| 2027-05-14 → 2027-06-20 | Wiener Festwochen 2027 (Vienna Festival of arts) festival 14 May - 20 Jun 2027 per festival announcements; culture-tourism tailwind over five weeks rather than a single spike. | medium | Multiple venues citywide | source ↗ |
| 2027-06-25 → 2027-06-27 | Donauinselfest 2027 (44th Danube Island Festival) music Confirmed back on the traditional last-June-weekend slot (25-27 Jun 2027). Europe's largest free open-air festival (~2.5M visits); heavy regional influx, moderate room-night conversion. | high | Donauinsel (Danube Island) | source ↗ |
| 2027 date not yet announced; recurring pattern is a free evening concert in the Schoenbrunn palace gardens in June (2026 edition: 19 Jun). Estimate mid-June 2027. verify | Vienna Philharmonic Summer Night Concert 2027 music | low | Schoenbrunn Palace Gardens | source ↗ |
| Exact 2027 date not yet published; recurring pattern is a two-week Pride with the parade on a Saturday in early-to-mid June on the Ringstrasse. Estimate first half of June 2027. verify | Vienna Pride 2027 and 31st Regenbogenparade (Rainbow Parade) festival | medium | Ringstrasse / Rathausplatz Pride Village | source ↗ |
This is the citywide headline layer — the same format your property calendar ($99/year) delivers, plus your neighborhood, your feeder markets' school breaks, negative drivers, and quarterly refreshes.