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ExpertBoat entry

HMS Hermes Wreck

Batticaloa, Sri Lanka
Strong surface currents are notoriously present at this site and must be actively managed on ascent, including deploying a surface marker buoy. The dive sits at 42-53m with mandatory decompression obligations, well beyond standard recreational limits. Any penetration involves confined, silty spaces that can zero out visibility quickly. The site is remote42–53 m depthBoat entryRash guard or 2mm shorty typical

Boat dive — see Entry & access.

HMS Hermes Wreck at a glance

HMS Hermes Wreck is an expert boat dive site in Batticaloa, Sri Lanka with depths of 42–53 m (138–174 ft). Typically most favorable Apr · from 3 years of archive data. Recent reports put the water around 31°C (87°F). Check the latest conditions and entry details before you go.

Marine model · graded 14h ago
0.8 mwaves — under a meter expected

Tap a factor for its source and model point · Forecast 31°C · seasonal avg 29°C

Site hazards: Strong surface currents are notoriously present at this site and must be actively managed on ascent, including deploying a surface marker buoy. The dive sits at 42-53m with mandatory decompression obligations, well beyond standard recreational limits. Any penetration involves confined, silty spaces that can zero out visibility quickly. The site is remote

Read the full hazards ↓

Dive windows this week

Best: Wed
Sat6:00–18:00
Sun6:00–18:00
Mon6:00–18:00
Tue6:00–18:00
Wed6:00–18:00
Thu6:00–18:00
Fri

Favorable windowModerate window— no window

First light 5:32 · Sunrise 5:53 · Sunset 18:04 · all windows sit within daylight

Source: Open-Meteo marine · model point 7.0 km from site · graded 14h ago

Forecast only — always assess conditions on site.

Recent diver reports

Dated firsthand observations from divers — not current conditions.

No diver reports for this site yet. — one dated observation helps every diver after you.

Dived here today — did the forecast match?

Best months, historically

What conditions have historically been typical at this site, month by month — not a forecast.

  1. Jan67%28°C1.3 m
  2. Feb86%28°C1.1 m
  3. Mar97%29°C0.8 m
  4. Apr99%30°C0.7 m
  5. May94%31°C0.8 m
  6. Jun89%30°C1.0 m
  7. Jul92%30°C1.0 m
  8. Aug86%29°C0.9 m
  9. Sep84%29°C1.0 m
  10. Oct92%30°C0.8 m
  11. Nov87%29°C1.1 m
  12. Dec74%28°C1.2 m

April 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.

Marine life recorded at this site

No recorded sightings data for this site yet. Species lists appear as GBIF records and diver reports accumulate.

Fills & rentals nearby

No dive shops mapped within 25 km. Know one? Add it to the map.

Data updated June 2026

Site details

No description for this site yet — divers who know it can suggest one below.

boatwreck

Strong surface currents are notoriously present at this site and must be actively managed on ascent, including deploying a surface marker buoy. The dive sits at 42-53m with mandatory decompression obligations, well beyond standard recreational limits. Any penetration involves confined, silty spaces that can zero out visibility quickly. The site is remoteroughly a 6-hour overland journey from Colombo to the Batticaloa dive base — so evacuation logistics are a real consideration.


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