Formentera · May
Low seasonSpain · Europe
Climate Overview
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Ø day, range from coolest to warmest dayØ dayrange | 16° (61°)11– (52–)20 (68) | 16° (61°)12– (54–)20 (68) | 18° (64°)12– (54–)22 (72) | 20° (68°)15– (59–)23 (73) | 23° (73°)18– (64–)27 (81) | 27° (81°)22– (72–)31 (88) | 30° (86°)26– (79–)33 (91) | 30° (86°)26– (79–)33 (91) | 28° (82°)23– (73–)30 (86) | 24° (75°)19– (66–)28 (82) | 20° (68°)14– (57–)24 (75) | 17° (63°)12– (54–)20 (68) |
Ø night, range from coldest to warmest nightØ nightrange | 8° (46°)2– (36–)14 (57) | 9° (48°)3– (37–)14 (57) | 10° (50°)4– (39–)14 (57) | 13° (55°)7– (45–)16 (61) | 16° (61°)10– (50–)19 (66) | 20° (68°)15– (59–)23 (73) | 23° (73°)18– (64–)25 (77) | 23° (73°)18– (64–)26 (79) | 21° (70°)15– (59–)25 (77) | 17° (63°)11– (52–)22 (72) | 13° (55°)7– (45–)19 (66) | 10° (50°)4– (39–)15 (59) |
☀️Sunshine | 6h UV 4 | 7h UV 5 | 8h UV 7 | 9h UV 8 | 11h UV 9 | 12h UV 9 | 11h UV 9 | 10h UV 8 | 8h UV 7 | 7h UV 6 | 6h UV 5 | 5h UV 4 |
🌊Water Temp | 15° (59°) | 15° (59°) | 15° (59°) | 17° (63°) | 19° (66°) | 23° (73°) | 26° (79°) | 27° (81°) | 26° (79°) | 23° (73°) | 20° (68°) | 17° (63°) |
🌧Rain Days | 4d35mm (1.4") | 3d23mm (0.9") | 3d42mm (1.6") | 3d34mm (1.4") | 2d16mm (0.6") | 1d15mm (0.6") | 0d2mm (0.1") | 2d24mm (1.0") | 3d53mm (2.1") | 4d54mm (2.1") | 5d59mm (2.3") | 4d41mm (1.6") |
Best travel time current monthØ = average · small figures = range: coolest–warmest day / coldest–warmest nightClimate data 2005–2025 · Source: ERA5 + station data
Still off-season — flights and hotels significantly cheaper than in June.
May is an acceptable travel month for Formentera — conditions are fine, though June, July, August, September, and October offer even better weather.
Daytime highs average 23°C (73°F), cooling to 16°C (61°F) at night (daily average: 19°C (66°F)). Peaks reach around 27°C (81°F), the coldest nights around 10°C (50°F). With 11 sunshine hours per day, May is one of the sunniest months — 16 mm (0.6 in) of rain over 2 days. The sea is 19°C (66°F) — refreshing and manageable for confident swimmers.
A jacket for cool evenings should not be left behind. Sightseeing and excursions can be enjoyed comfortably at this time of year.
The start of the season: bars open, bikes are rented out again and the beaches fill slowly. The light is clear and bright, the days are long and the water is still cool. Visit now and you share Ses Illetes with only a handful of others.
Packing list for Formentera in May
- T-shirts and shorts
- Light jacket for cool evenings
- SPF 50 sunscreen
- Sunglasses
- Sun hat
- Travel first-aid kit
Frequently Asked Questions
- Is May a good time to visit Formentera?
- May is not an optimal month for Formentera (Score: 85/100), but it is manageable. For better conditions, consider June, July, August, September, and October.
- How warm is it in Formentera in May?
- In May, Formentera sees daily highs of 23°C (73°F). Nights cool to 16°C (61°F), with a daily average of 19°C (66°F). Peaks reach around 27°C (81°F), the coldest nights around 10°C (50°F).
- How much rain falls in Formentera in May?
- In May, Formentera receives an average of 16 mm (0.6 in) of rain over 2 rain days. That is comparatively dry.
- How many sunshine hours does Formentera get in May?
- Formentera averages 11 sunshine hours per day in May — above the annual average.
- How warm is the water in Formentera in May?
- Water temperature in Formentera in May averages 19°C (66°F) — refreshing but slightly cool for sensitive swimmers.
