What will I see at Riy Bank, Algoa Bay?

Divers at Riy Bank, Algoa Bay in South Africa commonly report sightings of Pyjama catshark, Kingfish / trevally, Ragged-tooth shark (raggie), Soft coral / sea fans, and Short-tail stingray. Pyjama catshark, Kingfish / trevally, and Soft coral / sea fans are recorded as common sightings, while Ragged-tooth shark (raggie) is seasonal, while Short-tail stingray is reported only occasionally. Marine life varies by season and conditions—check the site page for recent diver observations and photos.

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Riy Bank, Algoa Bay

Eastern Cape, South AfricaDirections

5mm wetsuit typical

Riy Bank, Algoa Bay at a glance

Riy Bank, Algoa Bay is a dive site in Eastern Cape, South Africa. Typically most favorable Jan · from 3 years of archive data. Divers commonly see Pyjama catshark, Kingfish / trevally, and Ragged-tooth shark (raggie). Recent reports put the water around 20°C (67°F). Check the latest conditions and entry details before you go.

Next window today· 6:00–19:00 · favorable & moderate · sunset 18:39

Forecast for this hour · 3:00 · run 8 h ago

1.2 m (3.9 ft)waves — about a meter expected (waves — about four feet expected)

Tap a factor for its source and model point · Forecast 20°C · seasonal avg 17°C ( · Forecast 67°F · seasonal avg 63°F)

Dive windows this week

Smallest waves: Wed

Mon

1.4 m waves · 15 kn wind (4.6 ft waves · 15 kn wind)

Tue

1.9 m waves · 14 kn wind (6.4 ft waves · 14 kn wind)

Wed

1.3 m waves · 12 kn wind (4.3 ft waves · 12 kn wind)

Thu

1.6 m waves · 11 kn wind (5.2 ft waves · 11 kn wind)

Fri

2.0 m waves · 6 kn wind (6.7 ft waves · 6 kn wind)

Sat

1.7 m waves · 8 kn wind (5.4 ft waves · 8 kn wind)

Sun

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 4:55 · Sunrise 5:21 · Sunset 18:39 · some windows run past sunset

Source: Open-Meteo marine · model point 3.2 km from site · updated 25 Oct, 19:25 GMT+2

Forecast only — always assess conditions on site.

Compare this weekend’s windows near Riy Bank, Algoa Bay

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?

What Divers Say

Known for: Pyjama catshark, Kingfish / trevally, Soft coral / sea fans

Based on community reviews and site data. Conditions vary — always verify before diving.

Best months, historically

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

January, 5% of days have historically been favorable, water has typically been 19°C (66°F), waves have typically been 2.3 m (7.4 ft), wind has typically been 20 knots, historically most favorable
February, 4% of days have historically been favorable, water has typically been 19°C (66°F), waves have typically been 2.4 m (7.9 ft), wind has typically been 20 knots
March, 3% of days have historically been favorable, water has typically been 18°C (65°F), waves have typically been 2.5 m (8.3 ft), wind has typically been 21 knots
April, 3% of days have historically been favorable, water has typically been 18°C (64°F), waves have typically been 2.6 m (8.6 ft), wind has typically been 20 knots
May, 1% of days have historically been favorable, water has typically been 19°C (66°F), waves have typically been 2.9 m (9.6 ft), wind has typically been 20 knots
June, 1% of days have historically been favorable, water has typically been 18°C (65°F), waves have typically been 3.2 m (10.5 ft), wind has typically been 22 knots
July, 0% of days have historically been favorable, water has typically been 18°C (65°F), waves have typically been 3.3 m (10.9 ft), wind has typically been 22 knots
August, 1% of days have historically been favorable, water has typically been 18°C (65°F), waves have typically been 3.4 m (11.0 ft), wind has typically been 22 knots
September, 0% of days have historically been favorable, water has typically been 18°C (64°F), waves have typically been 3.2 m (10.5 ft), wind has typically been 23 knots
October, 0% of days have historically been favorable, water has typically been 17°C (63°F), waves have typically been 2.7 m (8.9 ft), wind has typically been 22 knots
November, 2% of days have historically been favorable, water has typically been 18°C (65°F), waves have typically been 2.5 m (8.1 ft), wind has typically been 20 knots
December, 3% of days have historically been favorable, water has typically been 19°C (66°F), waves have typically been 2.4 m (7.8 ft), wind has typically been 20 knots

January 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 seen at this site

Species noted at this site — not a promise of what you’ll encounter.

Species seen here

Rough labels: “Commonly seen” usually means two or more recorded sightings near this site in public dive logs (GBIF), “Occasionally seen” one; “Seasonal” and “Rarely seen” come from dive-guide research. Not a measured rate.