Longdong (Northeast Coast)

3mm wetsuit typical

Longdong (Northeast Coast) at a glance

Longdong (Northeast Coast) is a dive site in Taiwan. Typically most favorable Aug · from 3 years of archive data. Recent reports put the water around 26°C (79°F). Check the latest conditions and entry details before you go.

Moderate window now· until 17:00, then favorable until 18:00 · sunset 17:17

Forecast for this hour · 6:00 · run 16 h ago

1.8 m (5.8 ft)waves — about two meters expected (waves — about six feet expected)

Tap a factor for its source and model point · Forecast 26°C · seasonal avg 28°C ( · Forecast 79°F · seasonal avg 82°F)

Dive windows this week

Sun

1.6 m waves · 9 kn wind (5.2 ft waves · 9 kn wind)

Mon

1.5 m waves · 8 kn wind (4.8 ft waves · 8 kn wind)

Tue

2.0 m waves · 11 kn wind (6.5 ft waves · 11 kn wind)

Wed

2.4 m waves · 10 kn wind (8.0 ft waves · 10 kn wind)

Thu

1.4 m waves · 4 kn wind (4.6 ft waves · 4 kn wind)

Fri

0.9 m waves · 4 kn wind (2.8 ft waves · 4 kn wind)

Sat

Favorable windowModerate window— no window

Every forecast dive window each day, site-local time, from wave and wind forecasts. Numbers under each bar are daylight averages.

First light 5:32 · Sunrise 5:55 · Sunset 17:17 · some windows run past sunset

Source: Open-Meteo marine · model point 11 km from site · updated 24 Oct, 13:19 GMT+8

Forecast only — always assess conditions on site.

Compare this weekend’s windows near Longdong (Northeast Coast)

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.

January, 44% of days have historically been favorable, water has typically been 22°C (71°F), waves have typically been 1.8 m (6.0 ft), wind has typically been 12 knots
February, 46% of days have historically been favorable, water has typically been 22°C (71°F), waves have typically been 1.8 m (6.0 ft), wind has typically been 12 knots
March, 71% of days have historically been favorable, water has typically been 22°C (72°F), waves have typically been 1.5 m (4.9 ft), wind has typically been 11 knots
April, 80% of days have historically been favorable, water has typically been 24°C (76°F), waves have typically been 1.2 m (4.1 ft), wind has typically been 11 knots
May, 82% of days have historically been favorable, water has typically been 26°C (79°F), waves have typically been 1.3 m (4.3 ft), wind has typically been 11 knots
June, 87% of days have historically been favorable, water has typically been 28°C (83°F), waves have typically been 1.0 m (3.4 ft), wind has typically been 9 knots
July, 74% of days have historically been favorable, water has typically been 30°C (86°F), waves have typically been 1.5 m (5.0 ft), wind has typically been 12 knots
August, 89% of days have historically been favorable, water has typically been 30°C (86°F), waves have typically been 1.0 m (3.2 ft), wind has typically been 10 knots, historically most favorable
September, 81% of days have historically been favorable, water has typically been 29°C (85°F), waves have typically been 1.3 m (4.2 ft), wind has typically been 11 knots
October, 51% of days have historically been favorable, water has typically been 28°C (82°F), waves have typically been 2.0 m (6.5 ft), wind has typically been 13 knots
November, 36% of days have historically been favorable, water has typically been 26°C (78°F), waves have typically been 2.0 m (6.6 ft), wind has typically been 12 knots
December, 29% of days have historically been favorable, water has typically been 23°C (74°F), waves have typically been 2.0 m (6.5 ft), wind has typically been 11 knots

August has typically 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, by month

Recorded observations — evidence of past sightings, not a promise of what you’ll encounter.

Diploastrea heliopora recorded here May (2 records)
most recent 2012
Dusky Anemonefish recorded here May (2 records)
Amphiprion melanopusmost recent 2012
Neon Damselfish recorded here May (2 records)
Pomacentrus coelestismost recent 2012
Pennant Coral Fish recorded here May (2 records)
Heniochus acuminatusmost recent 2012
Spotfin Burrfish recorded here May (2 records)
Chilomycterus reticulatusmost recent 2012
Banded Coral Shrimp recorded here May (1 record)
Stenopus hispidusmost recent 2012
Bluespotted Cornetfish recorded here May (1 record)
Fistularia commersoniimost recent 2012
Clark's Anemonefish recorded here May (1 record)
Amphiprion clarkiimost recent 2012

Newest record here: 2012. 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.

Fills & rentals nearby

Facts from OpenStreetMap, corrected by the community — listed by distance only. Details change; confirm with the shop.

東北角潛水客棧690 m (0.4 mi)
Mo-Su 06:00-18:00 hours from OpenStreetMap — call ahead
Report a fix
海軍潛水訓練中心10 km (6.5 mi)
Report a fix

Shop facts come from OpenStreetMap and community corrections, shown nearest first. PickADive lists facts and contacts only — no listing is sponsored or ranked.

Data updated July 2026

Site details

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reefshore

No hazards recorded for this site yet — that never means there are none. Ask a local operator before you dive.

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