17:00to 23:59runs to 17 Aug
Paulusfeesten
Sint-Petrus-en-Paulusplein
53rd edition, 11-17 Aug, free. One of the country's oldest city festivals - loud and packed after dark.
Sunday 16 Aug — Today
all day
CAMILLE circus tent - closing day
Klein Strand, Oostende
Ticketed. The pink circus tent leaves the beach after today.
11:00
Apero Locale aperitif concert: Oostende Zingt
Wapenplein (kiosk)
Free Sunday-morning aperitif concert with local talent on the main square: a sing-along edition.
13:00runs to 16 Aug
Summer Bloom Festival
Duin en Zee event meadow, Fortstraat 128 (next to Fort Napoleon)
Two-day wellness and consciousness festival: 100+ workshops, yoga, meditation, sound healing and breathwork. Sat 13:00-21:30, Sun 10:00-18:00. Day ticket EUR 30 advance / 35 door, combo EUR 45.
17:00to 22:00
Evening market Mariakerke
Zeedijk, Mariakerke
Monday 17 Aug
10:30
Oostende Koerse: Premium horse racing day
ACEG Wellington Hippodroom
Premium race day at the seaside racecourse. The organiser's own site gives two different door times for this day: the programme block says doors 10:30 with races from 11:30, the ticket section says doors 11:00 — check before you travel. EUR 13 online / 15 at the gate, children under 10 free.
Tuesday 18 Aug
15:00
Kiosk concert: IKL e.V.
Wapenplein (kiosk)
Free open-air concert at the kiosk on the main square, part of the summer kiosk concert series.
Wednesday 19 Aug
20:00
Summer concert in St Peter and Paul church
Sint-Petrus- en -Pauluskerk
Organ and choral summer concert in Ostend's landmark neo-Gothic church.
Thursday 20 Aug
21:00runs to 23 Aug
Dark Weekender
Langestraat nightlife street (several venues)
Free weekend of alternative music: new wave, post-punk and 80s synthpop DJ sets, outdoors and in the Langestraat bars. Thursday pre-party, Sunday afterparty.
Friday 21 Aug
10:00
Bunker safari guided bike tour
Atlantikwall Raversyde
Guided ~25 km bike tour past WWII Atlantic Wall bunkers, leaving from Atlantikwall Raversyde, 10:00-13:00. EUR 5, bring your own bike, registration required. The listing shows exactly one other date: Friday 28 August, same hours.
12:00runs to 23 Aug
La Luna Obscura festival (Edition II)
Christinastraat 18g (underground venue)
Dark alternative festival: industrial, EBM, darkwave and post-punk. This Morn' Omina plays an exclusive 30th-anniversary show on Friday; Sunday club day 15:00-03:00. Wheelchair access via a ramp at an alternative entrance.
Saturday 22 Aug
18:00to 22:00
Museum Nocturne: Fort Napoleon
Fort Napoleon
Free evening opening (18:00-22:00) of the Napoleonic fort in the dunes on the east bank, part of the summer museum nocturne series.
Sunday 23 Aug
10:00
C-Mart handmade market
Sint-Antoniusplein, Oostende
Creative market with about 50 stalls of handmade, craft and local goods — ceramics, jewellery, 3D prints and home-made care products. Free, on the Sint-Antoniusplein, 10:00-17:00.
17:00to 22:00
Evening market Mariakerke
Zeedijk, Mariakerke
Monday 24 Aug
15:30
Oostende Koerse: Belgian horse racing day
ACEG Wellington Hippodroom
Belgian race day at the seaside racecourse. The organiser's own site gives two different door times for this day: the programme block says doors 15:30 with races from 16:30, the ticket section says doors 16:00 — check before you travel. EUR 13 online / 15 at the gate, children under 10 free.
Wednesday 26 Aug
20:00to 21:30
Summer concert: flute - Händel, Bach, Piazzolla
Sint-Petrus- en -Pauluskerk
Flute recital by Els Van den Borre with music by G.F. Händel, J.S. Bach and A. Piazzolla, 20:00-21:30, free entry. Part of the Zomerconcerten series in the Sint-Petrus-en-Pauluskerk, where Peter Ledaine plays the church's monumental organs on Wednesdays.
Saturday 29 Aug
12:00
30th Whale Sloop Race
Prins Albertlaan 104, Oostende harbour
Company teams race traditional whale sloops — five rowers and a cox — in an open and a women's category, with side activities for children. Free to watch from the quays at Prins Albertlaan 104, 12:00-20:00.
18:00to 22:00
Museum Nocturne: The Crystal Ship street art
Vindictivelaan, Oostende (tour departure point)
Free museum nocturne around The Crystal Ship street-art festival (100+ murals), 18:00-22:00. Guided tours leave from the Vindictivelaan at 18:00, 18:30, 19:00, 19:30 and 20:00; reservation required, max 25 per walk.
Sunday 30 Aug
14:00
Final Cargo Sunset with Lil Kleine
Cargo Summerbar
Season-closing beach-bar party at Cargo Summerbar, 14:00-23:00; Dutch rapper Lil Kleine plays his only club show on the Belgian coast at 19:00, after DJ sets from 14:00. Tickets EUR 35 (early bird 25).
17:00to 22:00
Evening market Mariakerke - last of the summer
Zeedijk, Mariakerke
Last summer evening market of the season on the Mariakerke promenade.
Friday 4 Sep
all dayruns to 6 Sep
Lotto Unbreakable breaking battles
Zeeheldenplein
Free three-day breakdance event on the square by the sea: B-Boys and B-Girls battle it out in front of the crowd.
Saturday 5 Sep
15:00
Kiwanis beach fort building contest
Beach at Thermae Palace Hotel
Charity team competition building sand forts on the beach at the Thermae Palace, 15:00-18:00, organised by Kiwanis Oostende Noordzee. Teams of six get about an hour to build the fort that survives the incoming tide longest. Taking part costs EUR 60 via the booking link — the listing does not say whether that is per team or per person.
Sunday 6 Sep
11:00
Apero Locale aperitif concert: OLVO-Band
Wapenplein (kiosk)
Free Sunday-morning aperitif concert with local talent on the main square.
Saturday 12 Sep
10:00runs to 13 Sep
ManiFiesta solidarity festival
ACEG Wellington Hippodroom
16th edition of the big solidarity festival: concerts (pop, hip-hop, electronic), debates, authors, film and comedy, Sat 10:00 to Sun 22:00. Day ticket EUR 24, weekend EUR 43.
Sunday 13 Sep
all day
Open Monuments Day in the Westerkwartier
Westerkwartier district
38th edition of Flanders' heritage day; Ostend spotlights the multicultural Westerkwartier and openmonumentendag.be announces 35+ free activities there. No overall hours are published yet — the full programme goes online on 20 August. The town-agenda page we linked before now serves only one sub-activity, a free guided tour of the Kris Lambert library in four one-hour slots (10:00-12:00 and 14:00-16:00).
11:00
World neighbourhood market
Prof. Mac Leodstraat 11, Oostende (Westerkwartier)
Multicultural neighbourhood market showing off the diversity of the Westerkwartier, 11:00-17:00 in the Prof. Mac Leodstraat, with global flavours, small workshops and get-togethers. Free, and part of Open Monuments Day.
13:00
Eneco Clean Beach Cup
Koning Boudewijnpromenade 214, Oostende (Inside Outside & Ostend Sailing)
17th edition of Belgium's biggest beach clean-up. In Ostend you can join in free at Inside Outside and Ostend Sailing, non-stop from 13:00 to 17:00; the 18:00 closing moment is at Surfclub Windekind in Oostduinkerke, not here. (The listing's hours block says 13:00-18:00, its own text 13:00-17:00.)
Open every day
Not scheduled, no tickets to time — useful between naps, or when the wind picks up.
Ferris wheel on the promenade
Enclosed gondolas, slow, and the whole coast from the top.
Q-Beach House
Live radio, DJ sets and a beach bar on the sand. Free, busy, and loud from late afternoon.
Atlantikwall Raversyde
Two kilometres of preserved bunkers in the dunes, plus a reconstructed medieval fishing village.
Mu.ZEE & The Crystal Ship street art
Over a hundred large murals across the city; the walking route is entirely flat and pram-friendly.