CB iSub

3mm wetsuit typical

CB iSub at a glance

CB iSub is a dive site in Spain. Typically most favorable Aug · from 3 years of archive data. Recent reports put the water around 24°C (76°F). Check the latest conditions and entry details before you go.

Favorable window now· until 19:00 · sunset 18:19

Forecast for this hour · 12:00 · run 6 h ago

0.2 m (0.6 ft)waves — under half a meter expected (waves — under a foot expected)

Tap a factor for its source and model point · Forecast 24°C · seasonal avg 21°C ( · Forecast 76°F · seasonal avg 70°F)

Dive windows this week

Lightest wind: Mon

Sun

0.2 m waves · 7 kn wind (0.7 ft waves · 7 kn wind)

Mon

0.1 m waves · 3 kn wind (0.3 ft waves · 3 kn wind)

Tue

0.1 m waves · 5 kn wind (0.5 ft waves · 5 kn wind)

Wed

0.2 m waves · 10 kn wind (0.6 ft waves · 10 kn wind)

Thu

0.3 m waves · 11 kn wind (0.9 ft waves · 11 kn wind)

Fri

0.3 m waves · 10 kn wind (1.1 ft waves · 10 kn wind)

Sat

0.2 m waves · 4 kn wind (0.7 ft waves · 4 kn wind)

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 6:58 · Sunrise 7:25 · Sunset 18:19 · some windows run past sunset

Source: Open-Meteo marine · model point 3.6 km from site · updated 25 Oct, 06:21 CET

Forecast only — always assess conditions on site.

Compare this weekend’s windows near CB iSub

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, 76% of days have historically been favorable, water has typically been 15°C (60°F), waves have typically been 1.0 m (3.4 ft), wind has typically been 10 knots
February, 76% of days have historically been favorable, water has typically been 15°C (59°F), waves have typically been 1.1 m (3.6 ft), wind has typically been 11 knots
March, 68% of days have historically been favorable, water has typically been 15°C (60°F), waves have typically been 1.2 m (4.0 ft), wind has typically been 12 knots
April, 79% of days have historically been favorable, water has typically been 17°C (63°F), waves have typically been 1.1 m (3.4 ft), wind has typically been 11 knots
May, 94% of days have historically been favorable, water has typically been 20°C (67°F), waves have typically been 0.9 m (2.9 ft), wind has typically been 10 knots
June, 91% of days have historically been favorable, water has typically been 23°C (73°F), waves have typically been 0.9 m (2.8 ft), wind has typically been 10 knots
July, 96% of days have historically been favorable, water has typically been 26°C (79°F), waves have typically been 0.8 m (2.7 ft), wind has typically been 10 knots
August, 98% of days have historically been favorable, water has typically been 27°C (81°F), waves have typically been 0.8 m (2.7 ft), wind has typically been 10 knots, historically most favorable
September, 91% of days have historically been favorable, water has typically been 25°C (77°F), waves have typically been 1.0 m (3.1 ft), wind has typically been 10 knots
October, 88% of days have historically been favorable, water has typically been 21°C (70°F), waves have typically been 1.0 m (3.1 ft), wind has typically been 10 knots
November, 89% of days have historically been favorable, water has typically been 18°C (65°F), waves have typically been 0.9 m (2.9 ft), wind has typically been 9 knots
December, 96% of days have historically been favorable, water has typically been 16°C (62°F), waves have typically been 0.8 m (2.6 ft), wind has typically been 8 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.

European conger recorded here May (1 record)
Conger congermost recent 2003
Small European Locust Lobster recorded here May (1 record)
Scyllarus arctusmost recent 2003

Newest record here: 2003. 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

No dive shops mapped within 25 km (16 mi). Know one? Add it to the map.

Data updated July 2026

Site details

CB iSub is a dive site located in Spain.

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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