I-169 Submarine
Why dive here
With 195+ marine species recorded in the area - including barracuda, blacktip reef sharks, eagle rays, grey reef sharks and whitetip reef sharks - I-169 Submarine offers some of Chuuk (Truk) Lagoon's richest diving. Water ranges 29-30°C, warmest August, October, November.
The I-169 Submarine is a distinctive dive in Chuuk, largely because it’s the only sub wreck in the lagoon. The story here is pretty grim – she was accidentally flooded, and then sunk by Japanese depth charges trying to free trapped sailors, which split her forward section wide open. You’ll find the conning tower lying detached, a little to the side, while the aft section is comparatively whole. It’s an interesting wreck to explore from the outside, but we don’t recommend penetration due to how easily the silt gets stirred up inside. A good site for those interested in the sheer variety of wrecks Chuuk offers.
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Conditions
Ocean conditions, forecast and tides for I-169 Submarine
I-169 Submarine Ocean Conditions
Monthly averages for I-169 Submarine, sourced from Open-Meteo marine data - nearest station: Open-Meteo marine grid (7.41, 151.84) (2km away)
October Averages
Sea Temperature
30°C
86°F · Range: 29.3–31.4°C
Air Temperature
28°C
82°F
Wind Speed
6.4 m/s
12.4 knots
Atmospheric Pressure
1009.4 hPa
Based on 4 years of monitoring data · Data sources: Open-Meteo marine data
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