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Alentejo, Portugal · Temperate

Alentejo in May: go or not?

Excellent time. Alentejo in May scores 8.5/10.

📅 Data updated: October 2026 🛰️ ERA5 · 10 years 📍 38.56°N · 7.90°W
⚡ This month's verdict
Go for it
Alentejo · May
8.5
12–24°
Temperature
19%
Rain
9h
Sun
🏛️ Heritage🌦️ Moderate rain
Photo : Antonio Vivace via Unsplash
The month in detail

What to expect in May

Spring marks the start of the good season in Alentejo. Temperatures rise (24°C) and tourists have not yet arrived en masse. Rain risk remains low (19% of days), leaving good room for outdoor activities. A good balance between weather and crowds, even if June (9.4/10) remains theoretically better.

May ranks 3 out of 12 months in Alentejo. Compared to April: +4°C daytime, 8 pts fewer rainy days, +1.4h of sun per day.

This month's conditions

What it's like in May

UV index
7 · high
sunscreen and hat advised
Feels like
dry air
10°
Daylight
14.1h of daylight
Air quality
good
AQI 29
Compare

Is May the right month?

The best month in Alentejo is June (9.4/10), 0.9 pt higher than May.

See June →See all 12 months →
Book

Plan your trip

Hotels at their lowest outside peak season, highest on comfortable months. Shoulder seasons offer a good price/climate compromise.

🎟️ Activities & tours · Alentejo

GetYourGuide selection · free cancellation

See all →
Affiliate link · GetYourGuide
Practical info

What you need to know before you go

Three angles: the country (language, currency, safety, budget), the year-round climate, and the specifics of a city break.

Country · Portugal

🗣️LanguagePortuguese
💶CurrencyEuro (€)
🚗DrivingRight-hand
🛡️Safety ⓘVery safe · 1/5
💰Cost of living ⓘCheap · 2/5

🌡️ Climate

🌍Climate typeTemperate
📈Climate trend ⓘStable
🔥Hottest monthJuly · 33°C
❄️Coolest monthJanuary · 14°C
🌧️Rainiest month ⓘNovember · 29%

🏛️ City break

📅Tourist peak seasonJune → August
☔Indoor sights ⓘYear-round
🚇Public transportGood
🛂VisaSchengen · 90 days
Location

Where is Alentejo ?

Global position + regional geographic context.

🌍 World
🔍 Geographic context
Portugal
Temperate climate with a 9.4 → 4.4 gap between best and worst month. 10 years of ERA5 data to choose by project.
38.56°N · 7.90°W
Questions

Frequently asked questions

What is the best time to visit Alentejo?
June is the best month with 28.0°C highs, 15.0°C lows, 9.6h of sunshine and 6.0% rainy days. The months of June & September offer comparable conditions.
How many hours of sunshine does Alentejo get in June?
Alentejo averages 9.6 sunshine hours per day in June. It is the sunniest month with a climate score of 9.2/10.
What is the rainiest month in Alentejo?
January is the most unfavourable month with January has the lowest climate score of the year and the lowest climate score of the year.
What are the temperatures at night in Alentejo in June?
In June, overnight lows reach 15.0°C, while afternoon highs average 28.0°C.
Is Alentejo good in winter?
In winter (December-February), Alentejo scores 5.1/10 on average — Difficult period — prefer the peak season.. The best month overall remains June with a score of 9.2/10.
When should you avoid Alentejo?
January is the most difficult month to visit Alentejo, with January has the lowest climate score of the year. Climate conditions are at their lowest of the year during this period.
Do you need sun protection in Alentejo in May?
The average UV index reaches 7 in May in Alentejo (high), with about 14.1h of daylight. Sunscreen and hat advised.