Storm Adam brought exceptional rainfall to Ibiza and Formentera over Sunday, 18 October, and Monday, 19 October, with provisional figures showing more than 200 litres of rain per square metre in parts of Formentera and almost the same amount at Ibiza Airport.

Data shared by the specialist weather account BMeteo at 17:00 on Monday placed La Mola, in Formentera, at 205.8 litres per square metre over the two-day period. Ibiza Airport had accumulated 199.3 litres, while Santa Eulària recorded 184.4 litres.

The figures underline the scale of the storm, which caused widespread flooding, disrupted transport and left residents, businesses and emergency services dealing with the consequences of intense rainfall across the Pitiusas.

La Mola Records the Highest Two-Day Total

La Mola recorded the highest accumulated rainfall in the figures published by BMeteo, surpassing 200 litres per square metre in just two days.

The reported totals were:

• La Mola, Formentera: 205.8 litres per square metre.

• Ibiza Airport: 199.3 litres per square metre.

• Santa Eulària des Riu: 184.4 litres per square metre.

These figures were provisional at 17:00 on Monday and cover the accumulated rainfall for 18 and 19 October. They should not be confused with measurements covering only a single day or a rolling 24-hour period.

The rainfall in Santa Eulària helps explain the large volumes of water that flowed through torrents and streets, flooding parking areas, affecting businesses and damaging parts of the coastline.

Ibiza Airport Sets a Separate 24-Hour Rainfall Record

The rainfall at Ibiza Airport was particularly significant. AEMET confirmed that the airport's weather station recorded 173.8 litres per square metre during 18 October alone.

According to the Spanish meteorological agency, this was the highest 24-hour rainfall total recorded at that location since measurements began in 1944.

This official daily record is separate from the provisional two-day total of 199.3 litres reported by BMeteo at 17:00 on Monday. The figures describe different measurement periods and are therefore not directly interchangeable.

Formentera also recorded exceptionally heavy precipitation during the episode. AEMET shared separate 24-hour measurements from stations on the island, including 195 litres per square metre at Formentera-Sant Francesc. These readings differ from the La Mola figure because they relate to different locations and measurement periods.

Flooding Affects Es Pratet and Santa Eulària

The accumulated rainfall had significant consequences across Ibiza.

In Ibiza Town, es Pratet was again among the worst-affected areas. Heavy overnight rain flooded businesses, access points and streets around the port and Santa Eulària Avenue. The avenue was closed in both directions for several hours before partially reopening.

Residents and business owners once again raised concerns about drainage around the Es Pratet car park, arguing that insufficient drainage contributes to water accumulating and flowing towards nearby premises. Those concerns reflect the accounts of affected locals; the precise contribution of the car park to the flooding has not been independently established.

Santa Eulària also experienced extensive disruption. Torrents carried large volumes of water, with incidents reported around ses Dones in Puig d’en Valls, sa Llavanera and es Figueral. Parts of the coastline and several parking areas were flooded, while homes and businesses were affected.

In es Canar, around 25 vehicles were reported trapped in a flooded car park, requiring recovery teams to remove vehicles using a crane.

Formentera Also Suffers Severe Flooding

Formentera experienced some of the heaviest rainfall of the episode. La Mola's accumulated total exceeded 200 litres per square metre in the provisional two-day figures.

The effects were visible across the island. At Cala Saona, a powerful flow of water transformed part of the beach into a torrent, cutting deep channels into the sand. Water also entered the Church of El Pilar during Sunday's downpour.

The scale of the rainfall added to the pressure on roads, drainage systems and areas already saturated by previous precipitation.

Emergency Response and Recovery Work Continue

The storm prompted extensive emergency operations across Ibiza and Formentera, with road closures, flooded properties and disruption to air travel among the principal problems.

The Military Emergency Unit (UME) was deployed to reinforce local emergency services, assisting with water removal and other response work. Schools were also suspended on Monday as a precaution against the risk of further flooding.

Although conditions began to improve in some areas later on Monday, authorities continued to monitor the situation and deal with outstanding incidents.

The provisional rainfall totals provide a clearer picture of the scale of Storm Adam's impact. With more than 200 litres per square metre recorded at La Mola over two days and an exceptional daily rainfall record at Ibiza Airport, the episode left a significant mark on both islands.

The immediate priority remains clearing affected areas, restoring access and assessing damage, while residents continue to follow official updates on weather conditions and any remaining risks.