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 9^th, 2019, to June 3^rd, 2020 (one logger, one dataset), and then every 15 minutes from June 3^rd, 2020, to October 7^th, 2021 (one logger, one dataset).

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

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