The Grotto is a shore dive site in Saipan (Northeast Coast), Northern Mariana Islands. Typically most favorable Aug · from 3 years of archive data. Recent reports put the water around 30°C (87°F). Check the latest conditions and entry details before you go.
Tap a factor for its source and model point · Forecast 30°C · seasonal avg 30°C
Dive windows this week
Best: FriFavorable windowModerate window— no window
First light 5:35 · Sunrise 5:58 · Sunset 18:48
Source: Open-Meteo marine · model point 4.5 km from site · graded 4h ago
Forecast only — always assess conditions on site.
Dated firsthand observations from divers — not current conditions.
No diver reports for this site yet. — one dated observation helps every diver after you.
What conditions have historically been typical at this site, month by month — not a forecast.
August hastypically had the largest share of favorable days here. Conditions vary year to year — this is historical context, not a forecast.
Based on 3 years of archive data. Bar height shows the share of days each month whose conditions have historically scored favorably.
Recorded observations — evidence of past sightings, not a promise of what you’ll encounter.
Carangoides orthogrammus recorded here Mar (1 record)
most recent 2018
Chelonia mydas recorded here Mar (1 record)
most recent 2018
Counts are occurrence records near this site from public biodiversity datasets (GBIF), grouped by calendar month across all sampled years. Sightings vary — past records are context, not a prediction.
No dive shops mapped within 25 km. Know one? Add it to the map.
No description for this site yet — divers who know it can suggest one below.
No hazards recorded for this site yet — that never means there are none. Ask a local operator before you dive.
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