Mercurius
Protected Area
Área De Relevante Interesse Ecológico Orla Marítima
Why dive here
With 44+ marine species recorded in the area - including sea turtles - Mercurius offers some of Fernando de Noronha's richest diving. Water ranges 27-29°C, warmest March, April, May.
Dropping in at Mercurius, you're usually met with a gentle drift along a volcanic reef. We've often spotted green sea turtles munching on algae, and the occasional lemon shark cruising by. It’s a pretty relaxed dive, good for shaking off the rust or just enjoying the typical Noronha scene without too much fuss. Visibility here tends to be consistently good, making it easy to just soak it all in.
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Conditions
Ocean conditions, forecast and tides for Mercurius
Mercurius Ocean Conditions
Monthly averages for Mercurius, sourced from Open-Meteo marine data + Copernicus Marine (EU) - nearest station: Open-Meteo marine grid (-3.84, -32.38) (0km away)
October Averages
Sea Temperature
27°C
81°F · Range: 26.5–27.9°C
Current Speed
29.15 cm/s
Direction: NW (329°)
Chlorophyll-a
0.035 mg/m³
Very clear (oligotrophic)
Salinity
36.39 PSU
Based on 4 years of monitoring data · Data sources: Open-Meteo marine data + Copernicus Marine (EU)
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