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Formentera, Spain · Temperate oceanic

Formentera in May: go or not?

Excellent time. Formentera in May scores 8.0/10.

📅 Data updated: October 2026 🛰️ ERA5 · 10 years 📍 38.70°N · 1.44°E
⚡ This month's verdict
Go for it
Formentera · May
8.0
18–19°
Temperature
8%
Rain
9h
Sun
🌊 Seaside☀️ Bright🍴 Gastronomy
Photo : Eugene Kucheruk via Unsplash
The month in detail

What to expect in May

Spring marks the start of the good season in Formentera. Temperatures rise (19°C) and tourists have not yet arrived en masse. Rain is virtually absent (8% of days) — ideal for planning without a backup. A good balance between weather and crowds, even if July (9.4/10) remains theoretically better.

May ranks 6 out of 12 months in Formentera. Compared to April: +3°C daytime, 5 pts fewer rainy days, +0.9h of sun per day.

This month's conditions

What it's like in May

UV index
8 · high
sunscreen and hat advised
Feels like
comfortable
15°
Sea
20°C
cool, invigorating
Daylight
14.1h of daylight
Air quality
good
AQI 39
Compare

Is May the right month?

The best month in Formentera is July (9.4/10), 1.4 pt higher than May.

See July →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 · Formentera

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 beach holiday.

Country · Spain

🗣️LanguageSpanish
💶CurrencyEuro (€)
🚗DrivingRight-hand
🛡️Safety ⓘVery safe · 1/5
💰Cost of living ⓘModerate · 3/5

🌡️ Climate

🌍Climate typeTemperate oceanic
📈Climate trend ⓘStable
🔥Hottest monthAugust · 27°C
❄️Coolest monthJanuary · 15°C
🌧️Rainiest month ⓘNovember · 20%

🏖️ Beach holiday

📅Peak seasonJuin → Sept
🏖️Swell (Sept–Mar) ⓘModérée
🛂VisaSchengen · 90 days
Location

Where is Formentera ?

Global position + regional geographic context.

🌍 World
🔍 Geographic context
Spain
Temperate oceanic climate with a 9.4 → 4.5 gap between best and worst month. 10 years of ERA5 data to choose by project.
38.70°N · 1.44°E
Questions

Frequently asked questions

What is the best time to visit Formentera?
July is the best month with 26.0°C highs, 24.0°C lows, 9.8h of sunshine and 1.0% rainy days. The months of July & August offer comparable conditions.
How many hours of sunshine does Formentera get in July?
Formentera averages 9.8 sunshine hours per day in July. It is the sunniest month with a climate score of 9.1/10.
What is the rainiest month in Formentera?
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 Formentera in July?
In July, overnight lows reach 24.0°C, while afternoon highs average 26.0°C.
Is Formentera good in winter?
In winter (December-February), Formentera scores 6.1/10 on average — Decent period conditions for cultural visits.. The best month overall remains July with a score of 9.1/10.
When should you avoid Formentera?
January is the most difficult month to visit Formentera, with January has the lowest climate score of the year. Climate conditions are at their lowest of the year during this period.
Can you swim in Formentera in May?
In May, the sea averages 20°C in Formentera: cool, invigorating. Swimming is possible but brisk; sensitive swimmers may prefer a wetsuit.
Do you need sun protection in Formentera in May?
The average UV index reaches 8 in May in Formentera (high), with about 14.1h of daylight. Sunscreen and hat advised.