Swell height in metres · Southern Ocean pulse arrives Sun 25
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Who Should Sail When
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Dinghy Sailors
Fri 23 + Sat 24 — SSE cross-onshore, 10–12 km/h, manageable swell 1.4–1.8m. Perfect dinghy conditions. Skip Sun due to 2.6m swell.
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Keelboat Sailors
Fri 23 – Sun 25 — Best window. Saturday is textbook: SSE 12 km/h, 1.8m swell. Sunday: good wind but requires offshore-capable boat for 2.6m swell.
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Racing
Sat 24 May — The pick. SSE 12 km/h base with 35 km/h gusts, 1.8m SW swell. Enough wind for tactical racing without extreme sea state. Set course working with SW swell.
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Cruising
Fri–Sun — All solid days for day sailing. Temperatures reaching 20–21°C, no rain after Thursday. Pack sunscreen ☀️
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Notes
Table Bay
SE wind is cross-onshore, creates bay fetch. SW swell wraps around Robben Island — confused seas near harbour entrance Sun–Mon.
False Bay
SSE wind is onshore — bigger wind chop than Table Bay. SW swell hits False Bay directly. Rough at Cape Point Sun–Mon.
Data
Open-Meteo marine + weather APIs. Swell is modelled, not buoy-measured — indicative only. Tide times not included; check local tables.