Travel

October in Jaén: ten days of San Lucas, then the first oil of the season

The Feria de San Lucas always ends on 18 October, and from late in the month the mills start running on the year’s first Picual. The coolest capital in Andalucía.

By The Guide to Andalucía teamPublished 21 Sept 20265 min read

Jaén has the coolest October of the eight Andalusian capitals — 21.9°C by day — and the one October event with a date that has not moved in centuries. The Feria de San Lucas always ends on 18 October, the saint’s day, and in 2026 it runs from Friday the 9th.

The other thing happening here is bigger than any fiesta. Late October is when the olive harvest starts, in the province that produces roughly a fifth of the world’s olive oil. Come at the end of the month and the mills are running.

What the weather actually does

Jaén city sits at 580 metres and averages 21.9°C by day and 13.8°C at night in October, with 55mm of rain over 5.9 rain days. (The station’s published series runs 1983–2010 rather than the full thirty years.)

That altitude is why Jaén is the coolest capital in the region this month — three or four degrees below Seville and Córdoba. It makes the city comfortable when the Guadalquivir valley is still hot, and it makes the province the best walking country in Andalucía in October.

Higher again, in the Sierra de Cazorla, Segura y Las Villas, expect cooler days and properly cold nights. The park tops 2,000 metres in places and October weather up there is a different proposition from the city.

The rain follows the regional pattern: the monthly total lands in a few concentrated days rather than spread across the month, and a dry October is common. Clocks go back on Sunday 25 October.

Which week to book

It depends which Jaén you want, and the two barely overlap.

For the feria, 9–18 October, with the best nights in the middle. Be warned that the first weekend of it collides with the 12 October long weekend — Monday the 12th is the Fiesta Nacional — so rooms in Jaén city over 10–12 October will be the tightest of the month.

For the harvest, the last week and into November. For the berrea, the red deer rut in Cazorla, you want the very first days of the month at the latest.

What is on in October 2026

  • 9–18 October (confirmed) — Feria de San Lucas, Jaén. The casetas open at 13:00 on the 9th with the extraordinary alumbrado at midnight; the 10th brings the inaugural pregón and a parade built around the legend of the Lagarto de la Magdalena. The programme includes a flamenco festival, the “San Lucas & Roll” strand, bullfighting, and a closing drone show on the 18th best watched from the Paseo de Caballos. The ayuntamiento’s own published programme gives these dates — several listings sites advertise 10–19 October, which is wrong and would also break the San Lucas rule by ending on the 19th.
  • Monday 12 October (fixed every year) — Fiesta Nacional de España.
  • From late October — the olive harvest. The Junta’s own crop forecast notes that recent campaigns have started earlier, “beginning in the month of October”, and Jaén’s most recent forecast runs to 2.3 million tonnes of milling olives. Late October is when the first mills fire up and aceite de cosecha temprana — the intense, green, bitter, peppery early-harvest Picual — reaches the market.
  • First week of October (annual, and ending) — the tail of the berrea in the Sierra de Cazorla. The Junta puts the red deer rut from mid-September to early October depending on the year’s weather, so the opening days of the month can still deliver the roaring and the clashes. From roughly the 10th, do not build a trip around it.
  • 2, 5 and 7 October (confirmed) — Villardompardo on the 2nd, Arroyo del Ojanco on the 5th, and Virgen del Rosario fiestas on the 7th in Fuerte del Rey, Mancha Real, Segura de la Sierra, Villacarrillo and Los Villares. Segura de la Sierra is the one worth a detour: a hilltop village inside the Cazorla park holding its Rosario fiesta.

Two corrections. The Feria de San Lucas is not a local public holiday — Jaén city’s two 2026 holidays are 11 June and 25 November, so shops and offices stay open right through the feria. And the Fiesta del Primer Aceite de Jaén is a November event, not an October one; the harvest begins in October but the celebration of the first oil comes the following month, and 2026 dates were not published when this was written.

What life is like

Jaén province is where Andalucía stops performing. There is no coast, no Alhambra, and correspondingly few visitors — which is exactly the appeal for anyone who has done Seville and Granada and wants the version without the queues.

October is when the province’s whole economy turns over. Olive picking employs a third of all Andalusian harvest labour, and in the second half of the month the groves fill with machinery and nets and the mills start their round-the-clock run. Around Baeza, Úbeda and the Sierra Mágina you can smell it.

Úbeda and Baeza, the two Renaissance towns that share a UNESCO listing, are at their best in October — warm enough to walk, cool enough to enjoy, and quiet. The Sierra de Cazorla, the largest protected area in Spain, has its finest walking weather of the year now that the summer heat has broken.

The one thing to do in October

Visit a working almazara in the last week of the month, when the first Picual of the season is being milled.

Early-harvest oil is a genuinely seasonal product — it is pressed from green olives picked before full ripeness, it is bitter and peppery in a way the supermarket bottle is not, and the window for tasting it fresh from the mill is a few weeks long. Mills around Baeza, Úbeda and the DOP areas of Sierra Mágina and Sierra de Segura take visitors. September gives you clean, idle machinery; late October gives you the thing itself.

Common questions

When exactly does the olive harvest start in Jaén?

October, with the first mills running from around the end of the month and the main campaign continuing into winter. Guides that place the Picual harvest in September are wrong — that is when the mills are cleaned, not when they run.

Can I still see the berrea in October?

Only just. The rut runs from mid-September to early October, so the first week is the tail end and can still deliver. After about the 10th, plan around something else. The Junta asks visitors to stay on marked trails and use specialist guides.

Is the Feria de San Lucas worth travelling for?

If you want a large Andalusian feria with almost no foreign visitors, yes. It is ten days, it is free to walk into, and it is a provincial capital celebrating for itself. Book early for the 10–12 October weekend.

Where to go next

More from Jaén