Your May weather guide
WarmWeather in Ibiza in May
May is a good time for Ibiza if you want warm days rather than intense heat, but it is less convincing for a swimming holiday. Average daytime highs reach 23.4°C, nights fall to 15.9°C, and the sea averages a bracing 18.4°C. For a UK traveller, the appeal is comfortable outdoor weather with relatively little rain. The catch is that evenings still call for a layer, and warm air does not mean warm water.
Long-term climate averages for Ibiza Town, not a forecast · 1991-2020
Ibiza, month by month
Your snapshot
At a glance
The useful details for Ibiza Town.
- Average daytime high
- 23.4°C
- 9 in 10 days stay below 27°C
- Average night-time low
- 15.9°C
- coldest 10% of nights: 13°C or lower
- Compared with London
- +6.8°C
- London averages 16.6°C in May
- Sea temperature
- 18.4°C
- year to year: 18°C to 19°C
- Sunshine per day (est.)
- 8.6h
- 61% of 14.1 h of daylight
- Rainy days (1 mm+)
- 3
- 20 mm over the month
- Humidity
- 65%
- Days over 25°C
- 29%
- 1% over 30°C
- Record high 1991-2020
- 32.4°C
- 2015-05-14
- Record low 1991-2020
- 10.2°C
- 1991-05-06
- Flight from London
- ≈ 2 h 30 min
- 1367 km, short-haul (estimate for a direct flight)
Records are observed extremes within 1991-2020, not typical holiday conditions. Warm-day percentages are shares of days, not day counts.
How May compares
May is the 5th warmest month of the year in Ibiza and ranks 65th of 134 destinations we compare for May - see where else is hot in May. Within Spain it is 10th of 87 (Spain in May). Against London's average high of 16.6°C in May, Ibiza is 6.8°C warmer by day and 7.6°C warmer at night.
Daytime and night-time in May
The typical May day in Ibiza peaks at 23.4°C, but that is an average: the warmest 10% of days reach 26.8°C or more. Roughly 1 in 3 days top 25°C and 1 in 125 pass 30°C. Nights average 15.9°C; one night in ten drops to 13.2°C or lower, so pack a layer for evenings. Between 1991 and 2020 the hottest May day here reached 32.4°C (2015-05-14) and the coldest night 10.2°C (1991-05-06).
Rain in May
Dry (3 rainy days or fewer): about 3 days with 1 mm or more, 20 mm in total. Year to year it varies a lot - the wettest May was 2008 with 85 mm, the driest 2015 with 2 mm. Humidity averages 65%.
Sea temperature in May
The sea averages 18.4°C - bracing (18-22°c). Depending on the year it ranges from 17.8°C to 19.2°C. For the warmest sea here, come in August (26.5°C).
Sunshine and daylight
Around 8.6 hours of sunshine a day (estimated from cloud cover), 14.1 hours of daylight: the sun rises about 06:42 and sets about 21:00 local time in mid-May. Average cloud cover is 39%.
Is May a good time to visit Ibiza?
It is a reasonable choice: warm days. The best months for Ibiza on our scoring are July, June, August; months averaging 25°C or more: Jun, Jul, Aug, Sep.
Warm enough for light clothes, not reliably hot
Ibiza's average daytime high is 6.8°C above London's May average of 16.6°C, so it offers a noticeable step up in warmth. That suits travellers who want to spend time outdoors without planning everything around intense heat. Days reach 25°C around 29% of the time, while 30°C is unusual at just 1%. Light clothes make sense during the day, with sun protection and the option of shade at midday. Do not pack as though summer heat is guaranteed, though: the coldest nights can fall to 13.2°C or lower. A jumper or light jacket is a sensible addition for sitting outside after dark, particularly if you feel the cold.
Good for time by the sea, less so for lingering in it
The sea is the main compromise in May. At an average of 18.4°C, it is bracing rather than comfortably warm, so swimming is more appealing if you already tolerate cool water. If long, relaxed swims are central to your holiday, May is a weaker choice than its daytime temperatures might suggest. For time outdoors on dry land, the balance is better: about 3 rainy days make rain a relatively small concern, though a dry stay is not guaranteed. Around 8.6 hours of sunshine within 14.1 hours of daylight leave plenty of scope for outdoor plans. Keep those plans flexible rather than assuming every day will be sunny throughout.
A little perspective
Ibiza through the year
May is highlighted. See how it compares with the rest of the year.
| Month | Day | Night | Sea | Sun/day | Rain mm | Rainy days | Days 25°C+ |
|---|---|---|---|---|---|---|---|
| January | 14.8°C | 10.0°C | 14.8°C | 5.4 | 32 | 6 | 0% |
| February | 15.1°C | 9.9°C | 14.2°C | 6.2 | 25 | 5 | 0% |
| March | 17.5°C | 11.3°C | 14.6°C | 7.0 | 22 | 4 | 0% |
| April | 19.8°C | 13.1°C | 15.8°C | 7.7 | 27 | 5 | 1% |
| MaySelected | 23.4°C | 15.9°C | 18.4°C | 8.6 | 20 | 3 | 29% |
| Junebest | 27.7°C | 19.6°C | 22.1°C | 11.0 | 8 | 2 | 83% |
| Julybest | 30.6°C | 22.5°C | 25.2°C | 12.3 | 3 | 1 | 100% |
| Augustbest | 30.9°C | 23.4°C | 26.5°C | 10.6 | 14 | 2 | 99% |
| September | 27.3°C | 21.3°C | 25.2°C | 7.6 | 43 | 5 | 81% |
| October | 23.3°C | 18.0°C | 22.5°C | 6.1 | 44 | 6 | 28% |
| November | 18.5°C | 14.0°C | 19.2°C | 5.3 | 47 | 7 | 0% |
| December | 15.7°C | 11.3°C | 16.4°C | 5.1 | 35 | 6 | 0% |
Day = average daytime high, night = average night-time low, 1991-2020.Sun is hours per day; rainy days count 1 mm or more.
Day, night and sea
Monthly average temperatures, 1991-2020
- Day
- Night
- Sea
Best months here
On warmth, low rainfall and sunshine, start with these.
Keep exploring
Similar in May
Closest matches on daytime temperature, sea temperature and sunshine, in other countries.
A little more detail
Ibiza in May FAQs
Plain answers, grounded in the averages.
Is Ibiza hot in May?
Ibiza is warm in May: the average daytime high is 23.4°C and nights average 15.9°C. Roughly 1 in 3 May days reach 25°C.
Can you swim in the sea in Ibiza in May?
The sea around Ibiza averages 18.4°C in May, which is bracing - fine for a quick dip, cool for long swims. Between 1991 and 2020 it ranged from 18°C to 19°C depending on the year.
How much does it rain in Ibiza in May?
Ibiza sees about 3 rainy days (1 mm or more) and 20 mm of rain in a typical May. The wettest May between 1991 and 2020 was 2008 (85 mm) and the driest was 2015 (2 mm).
How sunny is Ibiza in May?
Ibiza gets around 8.6 hours of sunshine a day in May out of 14.1 hours of daylight (estimated from average cloud cover).
How does Ibiza compare with the UK in May?
Ibiza is on average 6.8°C warmer than London by day in May (23.4°C against 16.6°C).
What is the hottest May on record in Ibiza?
Between 1991 and 2020 the hottest May day in Ibiza reached 32.4°C on 2015-05-14, and the coldest night dropped to 10.2°C on 1991-05-06.
What should I pack for Ibiza in May?
Pack light daytime clothes, sun protection and a jumper or light jacket for evenings. Average night lows are 15.9°C, with colder nights possible, so an all-summer wardrobe could leave you uncomfortable once the daytime warmth fades.
Is May the best month for hot weather in Ibiza?
May suits warmth more than dependable heat. Average highs are 23.4°C, and days reaching 30°C are rare. June, July and August are stronger choices overall in the weather ratings, while May makes sense if intense heat is not your priority.
How long is the flight from London?
The flight from London is about 2 h 30 min, making Ibiza a short-haul option for a warmer May break. The weather trade-off is straightforward: warmer days than London, but cool evenings and a sea that still feels bracing.
About these averages
ERA5-Land climate reanalysis via Open-Meteo (11 km grid) and NOAA Coral Reef Watch 5 km sea temperatures, 1991-2020
Averages computed from daily values at Ibiza (Ibiza Town). Sea temperature from the nearest 5 km sea cell, 3.8 km from that point. Sunshine hours are estimated from average cloud cover.Records are the highest and lowest daily values in that 30-year period, not all-time records. These are climate averages, not a forecast for your trip. How we measure holiday weather
- Hot · 25°C+
- Warm · 20°C to below 25°C
- Mild · 15°C to below 20°C
- Cool · below 15°C