September is the month when Ibiza quietly hands itself back to families. The sea is still bath-warm from three months of sun, the beaches empty out after the first week, and the island's town halls fill the calendar with things that cost nothing and start early enough for small people to attend. If you are on the island with children this week, you have picked well.
Here is what is worth building your week around between Monday 7 and Monday 14 September 2026 — from a village fiesta where children carry baskets of fruit to the altar, to four straight nights of free cinema, to a Saturday street festival with skate ramps and food trucks. Everything below is checked against our events calendar, with times, prices and locations.
A village fiesta where children carry the fruit
The Festes de Jesús reach their heart on Monday 7 and Tuesday 8 September, and they are the most child-friendly thing happening on the island right now. The village of Jesús, a five-minute drive from Ibiza Town, celebrates the Nativity of the Virgin Mary with a programme that has barely changed in generations.
Monday evening opens at 19:00 in the Plaza de Jesús with live performances and a concert by the Banda Municipal de Música de Santa Eulària des Riu. Tuesday 8 September is the día grande, kicking off around 11:00 with the misa mayor led by the Bishop of Ibiza, followed by a procession, ball pagès — the island's traditional folk dance, performed in full embroidered costume — and the Ofrena de Fruits, the fruit offering, in which children and villagers carry baskets of figs, almonds, grapes and melons up to the church.
It is free, it happens in daylight, and it is the single best hour of the week for showing children what Ibiza looked like before the airport. Bring a hat: the plaza offers little shade before midday.
Four nights of free cinema, indoors and out
Two separate free film programmes overlap this week, which is unusual and very convenient.
In Santa Eulària, the Teatro España runs screenings from Thursday 10 to Sunday 13 September. Every evening at 18:00 it is Tadeo Jones y la Lámpara Maravillosa — the Spanish animated adventure, in Spanish — followed at 20:00 by The Dog Stars. Entry is free, seating is indoors, and the theatre sits at Carrer de Sant Jaume 81, an easy walk from the promenade.
In Ibiza Town, the Cine a la fresca per la igualtat open-air series continues with two crowd-pleasers. Friday 11 September brings Pixar's Coco, with an activity from 20:00 and the film rolling at 21:00. Saturday 12 September it is Los Croods, the prehistoric family comedy. Both are free, organised by the Ajuntament d'Eivissa with Cinema Paradiso, and both are outdoors — bring a cushion and a light layer, because September evenings finally have a chill in them after 22:00.
Saturday 12 September: the busiest family day of the week
If you only have one free day, make it Saturday.
Joves al Carrer 2026 takes over the streets of Santa Eulària from 18:30, free and open to all. This second session of the programme runs candle-making, cream-making, bracelet and plant-art workshops, a tattoo bar for the braver teenagers, inclusive skateboarding sessions, 3x3 basketball matches with prizes, a dedicated children's zone and a row of food trucks. It is pitched at teenagers but works perfectly well for younger siblings, and the food trucks solve dinner.
Earlier the same day, El Kiddo returns to Bambuku Ibiza in Marina Botafoc from 11:00, tickets from €15. Now in its fourth season, this is the island's established family daytime experience: live performers, dancers, face painters, magicians and acrobats rotating through the day while resident DJ Harry Mc handles the music. The residency runs only until 19 September, so this is one of the last chances of 2026.
Also on Saturday, a free virtual reality workshop runs from 10:00 as part of the island's cultural programme — worth checking availability in advance, as places are limited.
The reliable standbys: a cave, a park and a sunset boat
Some things run every single day this week, which matters when a plan collapses.
The Cova de Can Marça in San Miguel is the island's most reliable wet-weather and heat-escape option. Tours leave every 30 minutes from 10:30 to 19:30 and last about 40 minutes underground, with atmospheric lighting and water features built into the route and commentary in several languages. Tickets run €9–15. It was a smugglers' hideout long before it was a visitor attraction, which is a story most eight-year-olds accept very happily.
BIBO Park Ibiza in Ibiza Town opens daily from 10:00, €10–19, and is exactly what it says: inflatables, games and attractions for a range of ages, for the day when nobody can face more sand.
And the Beach Hopper Sunset boat leaves at 16:00 most afternoons this week from Ibiza Town, from €30 — a gentler way to end a day than a beach club, and short enough that no one gets bored.
For older kids and teenagers
Two things stand out. On Friday 11 September at 20:00, the Centre Sociocultural de Cas Serres in Ibiza Town hosts Aurora boreal by Paula Quintas Cía., part of the Consell d'Eivissa's 2026 dance season. It is contemporary dance recommended for ages 12 and up, roughly an hour long, built around the northern lights as a metaphor for how quickly everything passes. Tickets are €8 in advance via Ticketib, €12 on the door — one of the cheapest pieces of serious theatre you will see anywhere this year.
For a completely different register, Sunday 13 September brings Nits al Baluard: A Musical Journey Through Korea and Spain at 21:00, free, up on the walls of Dalt Vila. Late for young children, but teenagers tend to remember it.
Practical tips for a family week in September
Timings run late, and that is fine. Spanish village fiestas do not really begin until 20:00 and children are welcome throughout. Shift the nap, not the plan.
The sea is still warm. Water temperatures around Ibiza stay comfortable well into October, and the calmer, family-friendly bays on the east coast — Cala Llonga, Cala Nova, Es Canar — are noticeably quieter now than in August.
Book the cave and El Kiddo; walk into everything else. The fiestas, the cinema nights and Joves al Carrer are all free and unticketed.
Park outside the village. For the Festes de Jesús, leave the car on the main road and walk in. The plaza fills quickly on the día grande.
Check before you travel. Village fiesta programmes shift with the weather and the odd last-minute change, and municipal cinema nights can move indoors.
For the full, continuously updated list of what is on across Ibiza and Formentera this week — free events, fiestas, concerts and family activities — browse the Ibiza Calendar events page and filter by date. The autumn programme is only just getting started.