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September in Seville: the Bienal year, and the ten days you should not book
The first week of September in Seville is still August at 34°C. The last week is one of the best travel windows of the year — and 2026 brings the Bienal de Flamenco.
Seville in September is two different cities with a fortnight in between. On the 1st it is 34°C and sightseeing is confined to mornings and evenings. By the 30th it is 29°C with nights you can sleep through. It is the biggest month-on-month temperature drop anywhere in Andalucía, and almost all of it happens in the second half.
If your dates are flexible, that single fact is worth more than any other advice on this page: book the last ten days.
What the weather actually does
Seville airport averages 31.7°C by day and 18.2°C at night across September, with 27mm of rain over 2.4 rain days and 244 hours of sunshine. August averages 35.5°C, so the monthly figure looks like relief — but the average hides the shape. Roughly 34/19 on the 1st, 29/17 on the 30th.
October is when the rain arrives properly, at 68mm. September is still dry, and the chance of a wet day climbs from 3% at the start of the month to 14% at the end.
You also lose about 45 minutes of evening light across the month. In early September the sun sets around 20:55; by the 30th it is closer to 20:10, which changes when dinner starts feeling like dinner.
What is on in September 2026
2026 is a Bienal year, and that is the reason to come.
The XXIV Bienal de Flamenco runs 9 September to 3 October: 72 performances, 52 productions and 22 world premieres across eleven venues. It happens only in even-numbered years. The opening gala is in the Plaza de Toros de la Real Maestranza; Sara Baras returns after fourteen years with a premiere, alongside José Mercé, Arcángel and Rancapino Chico. Tickets run roughly €12–75.
The venues are half the point. Alongside the Maestranza and the Teatro Lope de Vega, performances take place in the Real Alcázar, the church of San Luis de los Franceses and the old artillery works. Flamenco in those rooms is a different experience from flamenco in a theatre.
Out in the province, Utrera holds its feria 5–8 September, and a dozen towns — Écija, Lebrija, Morón, Los Palacios — hold theirs through the month, most with dates not yet published.
What life is like
September is the verdeo, the table-olive harvest, and it is the season that matters in this province. Gordal comes off from late August and manzanilla from early September; the countryside around Écija, Morón and Arahal is working at dawn all month.
In the city, shops and restaurants come back off holiday in the first week and schools restart on the 10th and 15th. Seville stops performing for tourists and goes back to work, which is a good time to be there.
The one thing to do in September
A Bienal night in a venue that is not a theatre. San Luis de los Franceses is a baroque church with a painted dome; the Alcázar is a working royal palace. Nothing else puts this density of first-rank flamenco inside Seville’s own buildings, and it only happens every second year.
Book early. The programme has been out since the summer and the smaller venues are the first to go.
