Mallorca sea temperature hits 33.02 °C record, sparking heat‑wave concerns
A buoy off the island of Mallorca recorded a sea‑surface temperature of 33.02 °C on 6 August 2026, the highest ever measured in Spanish waters, according to the national meteorological service AEMET. The reading, confirmed by the port authority’s buoy near Sa Dragonera, is about four degrees above the long‑term average for the western Mediterranean.
Scientists attribute the extreme heat to human‑induced climate change and warn that the unusually warm water raises the risk of intense autumn storms and heavy rainfall. The same heat wave has been observed elsewhere in the Mediterranean, with the Ligurian Sea reaching a record 31 °C on 3 August 2026.
Higher water temperatures have also altered marine life around Mallorca. Several beachgoers were bitten by small fish, identified as Geißbrassen, a behaviour experts link to the rising sea temperature that increases the fish’s metabolism and reduces its natural shyness.
Entities: AEMET · AEMET (Spanish National Meteorological Service) · AEMET (Spanish National Weather Service) · AEMET (Spanish State Meteorological Agency) · Bodensee · Copernicus Marine Service · Dragonera · Dragonera (island off Mallorca) · Dragonera Island · Duncan Wincen · EU Bathing Water Directive · Geißbrassen (Mediterranean sea bream)
Claims
What the coverage asserts, and how well corroborated each claim is across sources.
- [● 18 SOURCES] A sea‑surface temperature of 33.02 °C was recorded at a buoy off Dragonera on 6 August 2026. (AEMET)
- [● 17 SOURCES] AEMET confirmed the 33.02 °C measurement. (AEMET)
- [● 7 SOURCES] Global average sea‑surface temperature reached a record 24.3 °C in June 2026. (new)
- [● 17 SOURCES] Elevated sea temperature increases the risk of intense storms and heavy autumn rainfall. (Scientists)
- [● 17 SOURCES] The previous sea‑temperature record at the same site was 31.87 °C on 12 August 2024. (AEMET)
- [● 17 SOURCES] Current water temperatures are about four degrees Celsius above the long‑term average in the western Mediterranean. (AEMET / experts)
- [● 16 SOURCES] After the record, the buoy measured 29.33 °C during the night of 6‑7 August 2026. (new)
- [● 6 SOURCES] Small fish (Geißbrassen) bit beachgoers on Mallorca, a behaviour linked to rising sea temperature. (Experts)
- [○ 1 SOURCE] The Ligurian Sea recorded a temperature of 31 °C on 3 August 2026, a historic record for that location. (Italian environmental institute Ispra)