Open Travel Guide
Weather in Alentejo

Alentejo Weather & Climate Guide 2026

When to visit Alentejo: real monthly data on temperature, rain, and crowds — not vibes.

Weather through the year in Portugal

12° JAN 13° FEB 15° MAR 17° APR 20° MAY 24° JUN 27° JUL 28° AUG 25° SEP 20° OCT 15° NOV 13° DEC

Best time Shoulder Worth avoiding

Average daytime temperature in °C. Figures are for Portugal.

Alentejo is Portugal's largest region, a vast plain of cork oak forests, whitewashed hilltop villages, and rolling vineyards stretching from the Spanish border to the Atlantic coast. Home to the UNESCO World Heritage city of Évora, the megalithic stone circle of Cromeleque dos Almendres, and the walled fortress towns of Elvas and Marvão, Alentejo pairs deep history with one of Europe's leading wine regions, the world's largest cork production, and the wild, undeveloped beaches of the Costa Vicentina.

Alentejo has a Mediterranean-continental climate that produces some of the most extreme temperature swings in Portugal. Being Portugal's largest and most inland region (though it also touches the Atlantic on its southwest coast), Alentejo lacks the moderating sea breezes that temper Lisbon and the Algarve, so summers in Évora and Beja are hot and dry, frequently climbing to 35-40°C (95-104°F) in July and August. Winters are mild and wet, averaging 10-15°C (50-59°F), with most of the region's modest annual rainfall (around 460-580mm) concentrated between October and December. Spring brings wildflowers and almond blossom across the plains, while autumn's cooler days coincide with the wine harvest.

Best time to visit

Recommendation

Items:

  • Period
    Spring (March-May)
    Why
    Mild, comfortable temperatures (16-24°C), wildflowers and almond blossom across the plains, and the countryside at its greenest before the summer heat sets in
  • Period
    Autumn (September-October)
    Why
    Cooling temperatures (20-28°C), the wine harvest (vindima) across Alentejo's vineyards, and golden late-summer light with far fewer visitors than July-August

Best: March-May and September-October

Avoid: July-August for heat-sensitive travelers; December-January for short days and the wettest weather

Peak Season: July-August (hottest, though not the busiest tourist season compared with the coast) and around Easter

Notes: Alentejo's summer heat is more intense than almost anywhere else in Portugal, so travelers uncomfortable with sustained 35°C+ days should favor the shoulder seasons; winter is mild enough for sightseeing but wetter and with shorter daylight hours

Month-by-month weather

Typical conditions throughout the year.

Items

The seasons

What to expect in each part of the year.

Season

Items

Crowds & peak times

When to expect tourists and when to avoid them.

Items
  • Level
    High season
    Period
    Easter week and July-August (mainly around Alqueva watersports and the Comporta/Vila Nova de Milfontes coast, less so inland due to the heat)
  • Level
    Shoulder season
    Period
    April-June and September-October — the most popular window for touring Évora, Monsaraz and the wine estates
  • Level
    Low season
    Period
    November-March — very quiet, lowest prices, some rural guesthouses operate reduced hours

Major events & festivals

Time your visit around what matters.

Event

Almond Blossom Season

Almond trees flower across sheltered pockets of the Alentejo countryside, drawing early-season photographers and nature visitors

Event

ÉvoraWine Festival

Évora's largest wine festival fills Praça do Giraldo with dozens of Alentejo wine producers, tastings, show cooking, and live music over a weekend

Event

Alentejo Gastronomic Festival Circuit

A multi-chapter food festival celebrating Alentejo cuisine takes place across towns including Monforte and Évora, with chefs hosting pop-up dinners at wine estates

Event

Music at Adega Cartuxa (Évora)

An open-air music series held over summer weekends at the historic Adega Cartuxa winery, pairing Alentejo wine tastings with live Portuguese music at sunset

Event

Wine Harvest (Vindima)

Traditional grape harvest celebrations take place across Alentejo's wine estates and villages, with many wineries opening for harvest tastings and events

Event

Redondo Festival

The historic center of Redondo is decorated with elaborate paper flowers and sculptures for a beloved biennial town festival featuring live music