Seawater temperature data from Gando Bay (Gran Canaria, 25 and 40m depth) and Playa Chica (Lanzarote, 80m depth) in the Canary islands, collected using HOBO temperature loggers.

Seawater temperature data collected using HOBO temperature loggers at three sites in the Canary Islands.

Temperature data loggers were attached to 50 cm-long metal stakes partially buried into the seabed (Hobo data-logger Pendant Temp-Light, Onset Computer Corporation, USA), at 25 m and 40 m in Gando Bay (Gran Canaria; 27°55'56.1"N 15°21'11.0"W) and at 80 m in Playa Chica (Lanzarote; 28°55'04.7"N 13°40'11.8"W).

- At 25 m, loggers were set up to record measurements every 2 hours, from October 9th, 2019, to June 3rd, 2020 (one logger, one dataset), and then every 15 minutes from June 3rd, 2020, to October 7th, 2021 (one logger, one dataset).

- At 40 m, one logger was set up to take a measurement every 5 minutes (July 12th to August 25th, 2017, and September 21st to October 10th, 2018) (two loggers, two datasets).

- At 80 m, one logger was set up to take a measurement every 4 hours, from January 10th to February 17th, 2021 (one logger, one dataset), and every 15 minutes from February 17th to October 19th, 2021 (one logger, one dataset).