30 °C at the surface, warm to about 13 m. About 28 °C at typical dive depth.
- 0–20 m Rash guard or 1–2 mm (down to 28.8 °C)
- 20–30 m 3 mm wetsuit (down to 26.6 °C)
- 30–40 m 5 mm wetsuit (down to 24.9 °C)
Model estimate (Copernicus Marine), updated Sat 14 Nov. Medium confidence.