O Arco
Protected Area
Caloura-Ponta da Galera - Ilha de S. Miguel
Why dive here
With 219+ marine species recorded in the area - including blue sharks, blue whales, dolphins, dwarf minke whales and hammerhead sharks - O Arco offers some of Azores's richest diving. Water ranges 16-24°C, warmest August, September, October.
O Arco, off the Azores, offers an easy dive down to 24 meters. It's a good spot for newer divers to get comfortable in the water, with a gentle current typical for the area. You'll find the usual Atlantic suspects here, a mix of schooling fish and a few resident morays peeking from the rocks. We'd suggest it for an easy second dive or for getting back into things after a break.
Typical O Arco Dive Profile
Illustrative profile based on site depth and type. Actual dive profiles vary - always follow your dive computer and training.
Safety Notes
Depth of 24m - Advanced Open Water certification recommended.
Always perform a 3-minute safety stop at 5m before surfacing.
Nearest Dive Centres to O Arco
Dive shops near O Arco
Season Challenge diving center
AZZURRO - Dive Academy
Azores Sub Dive Center
Azores Low Dive
Espírito Azul Dive Center
Reviews for O Arco
Conditions
Ocean conditions, forecast and tides for O Arco
O Arco Ocean Conditions
Monthly averages for O Arco, sourced from Open-Meteo marine data - nearest station: Open-Meteo marine grid (37.87, -25.92) (22km away)
October Averages
Sea Temperature
22°C
72°F · Range: 20.5–24.2°C
Air Temperature
21°C
70°F
Wind Speed
10 m/s
19.4 knots
Atmospheric Pressure
1018.8 hPa
Based on 4 years of monitoring data · Data sources: Open-Meteo marine data
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