The climate of Ibiza, an island of the Balearics, is typically Mediterranean, with mild, relatively rainy winters and hot, sunny summers, which are also a bit sultry but tempered by sea breezes.
The average temperature ranges from 11.5 °C (52.5 °F) in January and February to 24.5 °C (76 °F) in August. Here are the average temperatures.
Ibiza - Average temperatures
Min (°C)88910131720211915119
Max (°C)151517182226292927231916
Min (°F)464648505563687066595248
Max (°F)595963647279848481736661

Rainfall is not abundant, since it amounts to 450 millimeters (17.7 inches) per year, and follows the Mediterranean pattern, so it is more common in autumn and winter, it gradually decreases during spring, and reaches a minimum in summer, when it almost never rains. Here is the average precipitation.
Ibiza - Average precipitation

The Balearic Islands are pretty windy, especially from October to April, however, being the westernmost one, Ibiza is the most sheltered from the north wind that blows from France, together with the nearby small island of Formentera. In summer, sea breezes blow, but they are welcome because they make the heat more bearable.

Winter, from December to February, is mild, with many sunny days, but also with periods of rain and wind. Cold days are rare, and in any case, the temperature never drops below freezing (0 °C or 32 °F).

Summer, from June to mid-September, is typically Mediterranean, ie hot and sunny.

The amount of sunshine in Ibiza is not very good in winter, when Atlantic or Mediterranean depressions can affect the island, however, there is a moderate amount of sunny days even in this period. The sunniest period is from May to August, when clear skies are the norm. In September, the first Atlantic disturbances occur, so in autumn the sun does not always shine. Here are the average sunshine hours per day.
Ibiza - Sunshine


The sea is warm enough for swimming from July to September, while in June and October, it is cool. Here are the average sea temperatures.
Ibiza - Sea temperature
Temp (°C)151415161821242624221916
Temp (°F)595759616470757975726661

Best Time

The best time to go to Ibiza for a beach holiday is summer, from June to mid-September. The water temperature is comfortable enough from July to September, although in September, which overall is still a good month (especially in the first half), the first rainy days may occur. May and June are sunny months, but the sea is still a bit cool, especially in May, when it is even a little cold.

April and May are suitable months for visiting the island and its cities. In October and November, the temperatures are mild, but the days are shorter and the weather can be rainy and windy.