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UB-81

United KingdomDirections
7mm or semi-dry + hood typical

UB-81 at a glance

UB-81 is a dive site in United Kingdom. Typically most favorable May · from 3 years of archive data. Recent reports put the water around 16°C (61°F). Check the latest conditions and entry details before you go.

No window today· next: tomorrow 7:00–17:00 · favorable & moderate

Forecast for this hour · 1:00 · run 7 h ago
2.3 m (7.6 ft)waves — about two and a half meters expected (waves — about eight feet expected)

Tap a factor for its source and model point · Forecast 16°C · seasonal avg 17°C ( · Forecast 61°F · seasonal avg 62°F)

Dive windows this week

TueNo window

2.5 m waves · 21 kn wind (8.0 ft waves · 21 kn wind)

Wed7:00–12:00 moderate, 12:00–17:00 favorable

1.5 m waves · 15 kn wind (4.8 ft waves · 15 kn wind)

Thu7:00–17:00 favorable

0.7 m waves · 6 kn wind (2.2 ft waves · 6 kn wind)

Fri7:00–17:00 favorable

0.5 m waves · 10 kn wind (1.6 ft waves · 10 kn wind)

Sat7:00–17:00 favorable

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

Sun7:00–17:00 favorable

0.4 m waves · 13 kn wind (1.4 ft waves · 13 kn wind)

MonNot in the forecast yet

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 6:12 · Sunrise 6:46 · Sunset 16:48 · some windows run past sunset

Source: Open-Meteo marine · model point 7.7 km from site · updated 26 Oct, 17:29 GMT

Forecast only — always assess conditions on site.

Compare this weekend’s windows near UB-81

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. January, 40% of days have historically been favorable, water has typically been 10°C (50°F), waves have typically been 1.9 m (6.3 ft), wind has typically been 23 knots
  2. February, 28% of days have historically been favorable, water has typically been 9°C (48°F), waves have typically been 1.6 m (5.1 ft), wind has typically been 20 knots
  3. March, 48% of days have historically been favorable, water has typically been 9°C (48°F), waves have typically been 1.5 m (4.9 ft), wind has typically been 20 knots
  4. April, 53% of days have historically been favorable, water has typically been 10°C (51°F), waves have typically been 1.4 m (4.6 ft), wind has typically been 19 knots
  5. May, 75% of days have historically been favorable, water has typically been 13°C (55°F), waves have typically been 0.9 m (3.1 ft), wind has typically been 16 knots, historically most favorable
  6. June, 72% of days have historically been favorable, water has typically been 16°C (60°F), waves have typically been 1.0 m (3.3 ft), wind has typically been 17 knots
  7. July, 60% of days have historically been favorable, water has typically been 17°C (62°F), waves have typically been 1.2 m (3.9 ft), wind has typically been 19 knots
  8. August, 57% of days have historically been favorable, water has typically been 18°C (65°F), waves have typically been 1.2 m (3.9 ft), wind has typically been 19 knots
  9. September, 52% of days have historically been favorable, water has typically been 18°C (64°F), waves have typically been 1.4 m (4.6 ft), wind has typically been 20 knots
  10. October, 42% of days have historically been favorable, water has typically been 17°C (62°F), waves have typically been 1.6 m (5.1 ft), wind has typically been 21 knots
  11. November, 27% of days have historically been favorable, water has typically been 14°C (57°F), waves have typically been 1.8 m (6.0 ft), wind has typically been 23 knots
  12. December, 18% of days have historically been favorable, water has typically been 12°C (53°F), waves have typically been 2.0 m (6.7 ft), wind has typically been 24 knots

May 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

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 (16 mi). Know one? Add it to the map.

Data updated July 2026

Site details

A dive site in United Kingdom.

wreck

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

Reviews

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