The best time to visit Ibiza and Formentera is June and September: 27-28 °C in the afternoon, a sea between 22 and 26 °C, the clubs open and accommodation much cheaper than in August. July and August are full-on summer, with the crowds and prices to match. Out of season, the islands empty and many hotels close.
Below: the month-by-month verdict, air and sea temperatures, and the right window for what you are after (beaches, partying, peace). Once you have chosen your dates, see where to stay in Ibiza to book in the right place.
Key points
- Best months: June and September. Sea at 22-26 °C, hot days without the August crush.
- August is the most expensive and busiest month: book accommodation and ferries several months ahead.
- For partying: clubs open from late April to September-October, opening parties in May, closings in September-October.
- For peace and low prices: May and October. From November to March, many hotels and restaurants close, especially in Formentera.
When to go to Ibiza: the month-by-month verdict
| Month | Air (max) | Sea | Crowds and prices | Verdict |
|---|---|---|---|---|
| January – March | 16-18°C | 14-16°C | Very quiet, many hotels and restaurants closed | Walks and nature, no swimming |
| April | 20°C | 16-17°C | Quiet, gradual reopenings, first clubs in late April | Hiking, cycling, villages |
| May | 23°C | 18-20°C | Moderate, prices still gentle, opening parties | Very good (water still cool) |
| June | 27°C | 22-24°C | Building up, prices rising in late June | Ideal |
| July | 30°C | 25-26°C | High, high prices | Good if you book early |
| August | 30°C | 26-27°C | Absolute peak, top prices, packed beaches | Avoid if you dislike crowds |
| September | 28°C | 25-26°C | Falling from the 2nd week, closing parties | Ideal |
| October | 24°C | 22-23°C | Quiet, closures at the end of the month, possible showers | Very good until mid-October |
| November – December | 17-20°C | 19-20 °C, then cooler | Islands winding down | Nature stay, not a beach holiday |
Book at the right time
Chosen your dates?
In June and September, the best addresses go several weeks ahead. Compare availability on the island you are interested in.
- Free cancellation on many offers
- Compare Ibiza and Formentera
The climate in Ibiza & Formentera
The climate of Ibiza and Formentera is hot, dry Mediterranean, which makes them ideal destinations for enjoying the sun for much of the year. Temperatures are high in summer and winter is very pleasant.
Ibiza and Formentera, the westernmost of the Balearics, are relatively sheltered from the north wind. While the archipelago is generally windy from October to April, summer is milder thanks to sea breezes that pleasantly cool the air.
What is the best time to go to Ibiza?
Ibiza is pleasant and can be visited all year round, but May, June, July and September are an excellent compromise: temperatures are mild, perfect for beaches and coves, and the island stays relatively peaceful before the August influx. Accommodation and flights are also often more affordable, which is no small thing. Flights are, however, less frequent than in high season.
Season by season:
| Spring (March to May) Temperatures: 17 to 25 °C by day / 12 to 18 °C at night Sunshine: 7 to 10 hours a day Sea: still cool (16 to 20 °C), but swimming is possible from May Nature: green, fields of wild flowers Perfect climate for a stay full of activities without suffering from the heat | Summer (June to September) Temperatures: 27 to 34 °C by day / 20 to 25 °C at night Sunshine: up to 11 hours a day Rain: very rare Sea: 24 to 27 °C, perfect for swimming How it feels: dry heat, sometimes very stifling in August, especially on beaches without shade. But sea breezes can cool the air. Ideal climate for the beach, parties, sunset walks and outdoor dinners. |
| Autumn (October to November) Temperatures: 18 to 26 °C by day / 15 to 20 °C at night Rain: possible showers, especially in October Sea: about 22 to 24 °C until early November A calmer atmosphere, golden landscapes and a mild climate, perfect for seeing the island differently, cycling, hiking or even diving. | Winter (December to February) Temperatures: 12 to 18 °C by day / 8 to 13 °C at night Rain: moderate, a few days a month Sea: 14 to 16 °C A quiet season, ideal for nature escapes and wellness stays. The islands go into “slow mode” (many hotels and restaurants close) and it is very peaceful. Breathtaking beaches, and the ultimate luxury: total calm. |
Month by month
Here is the table of average temperatures in Ibiza (1991-2020):
| Month | Min temp. (°C) | Max temp. (°C) | Average temp. (°C) |
|---|---|---|---|
| January | 7,8 | 15,9 | 11,8 |
| February | 7,8 | 16,0 | 11,9 |
| March | 9,5 | 17,8 | 13,6 |
| April | 11,6 | 20,0 | 15,8 |
| May | 14,6 | 23,1 | 18,8 |
| June | 18,4 | 27,1 | 22,8 |
| July | 21,5 | 29,7 | 25,6 |
| August | 22,4 | 30,4 | 26,4 |
| September | 19,8 | 27,6 | 23,7 |
| October | 16,3 | 24,0 | 20,2 |
| November | 12,0 | 19,6 | 15,8 |
| December | 9,0 | 16,8 | 12,9 |
| Year | 14,3 | 22,4 | 18,3 |
Sun, blue skies and UV index
Ibiza and Formentera get more than 300 days of sunshine a year. In summer, the UV index is high (7 to 10), which means sun protection is essential, even when the wind makes the heat more bearable. Think of the environment and choose a sun cream that is kind to the seabed.
Ibiza and Formentera: how different is the terrain on the two islands?
Ibiza is a hilly island, with green hills mainly in the centre and north. Its landscape stands out for its steep cliffs, rocky ridges and spectacular viewpoints over the Mediterranean. The island’s highest point, Sa Talaia, reaches 475 metres. This mountainous geography creates many hidden coves reached by paths, and impressive Mediterranean panoramas.
Ibiza appeals as much to beach lovers as to hikers looking for wild landscapes.
Formentera, on the other hand, is an almost flat island, with a much gentler, horizontal landscape. Its highest point, the La Mola plateau, rises to just 192 metres. This modest relief is ideal for cycling and quiet holidays. Most of the island is plains, dunes and salt marshes, an unspoilt and peaceful natural setting. It is very easy to go round the island in a day.
In terms of size, Ibiza covers about 572 km², making it the third-largest Balearic island after Mallorca and Menorca. Formentera covers about 83 km², the smallest of the four main Balearic islands. The two islands are about 3.5 km apart.
What is the best time for beaches and swimming?
Water and beach temperatures in Ibiza and Formentera
Although the sea is pleasant almost all year round, swimming is at its best from June to September.
In spring, especially in May, the water is still cool and bracing.
In high summer, between July and August, the sea reaches ideal temperatures of around 26 °C, and swimming is more than pleasant in almost lukewarm water.
In autumn, especially in September and October, the heat stored over the summer keeps swimming comfortable. Even in October, the water is surprisingly pleasant (I swam there at the end of October and it was great!).
From November to April, though, only the bravest will take the plunge: the water is cool, especially on windy days, but still fine for a quick dip with the right gear.
Info / tips
Shallow, sheltered coves such as Cala Saona or the small beaches around Es Caló in Formentera warm up faster: the water is often 1 to 2 °C warmer than in the open sea, especially in spring.
Average sea temperatures throughout the year
| Month | Average water temperature |
|---|---|
| April | 16–17°C |
| May | 18–20°C |
| June | 22–24°C |
| July | 25–26°C |
| August | 26–27°C |
| September | 25–26°C |
| October | 22–23°C |
| November | 19–20°C |
Tides in Ibiza and Formentera
There are tides in Ibiza and Formentera, as in all seas connected to the Atlantic Ocean. However, water-level variations are quite small in the Balearics, generally around 20 to 40 centimetres.
The phenomenon is therefore much less marked than on the Atlantic or on some coasts. Tides do not have a very visible impact on the beaches or water sports on these islands, but they do exist.
The advantages of the off-season
There are plenty of advantages to swimming off-season in Ibiza and Formentera, or simply enjoying the islands:
- Deserted beaches and still-warm water: the water stays at 22-23 °C until October-November. You have iconic beaches such as Ses Illetes or Migjorn almost to yourself, without the summer crowds. Not bad for some lovely Instagram shots…
- Unbeatable prices: accommodation often costs two to three times less than in August, so you can aim higher without blowing the budget. (Even in high season, I have good tips for hotels on smaller budgets.)
- Authentic atmosphere restored: locals take the islands back, restaurants become genuine again instead of tourist traps, and you discover local life.
- Legendary spots in private mode: sunsets at Café del Mar or facing Es Vedrà are almost deserted, and you enjoy activities in crystal-clear water in very small groups.
- Beach clubs closed = total freedom: no more paying €15 for a sangria (or even €25 or €35…), you can sip your drink with your feet in the sand on an empty beach
Planning the festive season? Markets, New Year’s Eve, the 1 January swim and the Three Kings are detailed in our guide Christmas and New Year in Ibiza.
What is the best season for partying in Ibiza and Formentera?
Ibiza’s nightlife calendar
May-June: the euphoria of the opening parties
Spring marks the reawakening of Ibiza’s nights. The May-June opening parties are legendary: Pacha, Amnesia and Ushuaïa reopen with exceptional line-ups. Fewer tourists than in high summer, more reasonable prices, shorter queues and often more cutting-edge programming. The atmosphere is electric, with regulars and music-industry professionals.
July-August: the peak of nightlife madness
Summer is the absolute peak. Ibiza becomes the world capital of electronic music, drawing the biggest DJs. Clubs at full throttle 7 days a week, boat parties, beach clubs, legendary residencies. The full experience, but with its downsides: sky-high prices, huge crowds and a much more commercial atmosphere.
That said, a night with a DJ you love is still an incredible experience to have at least once! (For example, I spent a night at Ushuaïa for David Guetta, and it was just amazing!)
September-October: the closing parties
This is the end of the season with the famous closing parties. The atmosphere becomes more intimate again, prices fall and there are fewer people. Many consider it the best period: one last party before the clubs close, ideal for enjoying Ibiza’s authenticity without the summer crowds. The 2026 closing dates and the month’s village fiestas are in our Ibiza October events guide.
Formentera: the chilled alternative
Formentera takes a much smoother approach to nightlife. In summer, the iconic chiringuitos (beach bars such as Kiosko 62, the Blue Bar and Piratabus) liven up the island around sunset. Lounge music in an idyllic setting, slightly more accessible prices, a bohemian atmosphere. I love these beach evenings, which have a magic of their own.
My advice: choose May-June or September-October if you want authenticity with fewer crowds, July-August to experience Ibiza to the full despite the crowds and prices, and Formentera if you prefer a festive but laid-back atmosphere.
Frequently asked questions: when to go to Ibiza and Formentera
What is the best month to go to Ibiza?
June and September. It is 27-28 °C in the afternoon, the sea is between 22 and 26 °C, clubs and beach clubs are open, and there are far fewer people and lower prices than in August.
When is the water warmest in Ibiza?
In August and early September, at 26-27 °C on average. The sea stays above 22 °C until mid-October, so you can swim comfortably late in the season.
When should you go to Ibiza for partying?
Clubs open in late April or early May (opening parties) and close between late September and mid-October (closing parties). July and August have the busiest line-ups, but also the highest prices. See our guide to the 2026 opening parties.
Can you go to Formentera out of season?
Yes, but many hotels, restaurants and chiringuitos close from November to April. Ferries from Ibiza run all year, with fewer sailings in winter. May and early October are the best compromise between peace and open services.
What is the cheapest month to go to Ibiza?
Excluding winter (when many places are closed), May and October have the gentlest prices with still-pleasant weather. August is always the most expensive month.
