How often is this page updated?

Current conditions refresh every 3 hours when the conditions cron runs. Sub-scores are recalculated from the latest hourly data each time you load the page.

What is the difference between Club and HP scores?

Club Dinghy scoring is optimised for boats like the Laser, RS200, and Wayfarer that peak at 14-16 knots. High Performance scoring suits boats like the 49er, Moth, and RS800 that want 18-20 knots and tolerate stronger winds.

What does the best window mean?

The algorithm slides a 4-hour window through racing hours (09:00-18:00) and picks the window with the highest score. The day's score weights this window at 70%, so a perfect afternoon sea breeze is not punished by a glassy morning.

Why is my score suppressed to zero?

Sustained winds above 40 knots, gusts above 50 knots, or visibility below 500m trigger automatic suppression, with the reason shown on the page. Thunderstorms no longer suppress the score: the score rates the sailing conditions themselves, and storms appear as a separate red safety flag instead.

What are the safety flags?

Red and amber indicators for thunderstorms, convective storm risk, extreme wind, and poor visibility. They are computed separately from the score, so a windy pre-frontal day can score well for conditions while still carrying a clear do-not-launch warning.

Where does the data come from?

Open-Meteo Weather API for wind, temperature, pressure, and visibility. Open-Meteo Marine API for wave and swell data at coastal and estuary venues.

Live sailing conditions

Table Bay

South Africa · Cape Town, South Africa

Coastal venueRanked #26 on the sailing leaderboard

Club Dinghy: Safety evidence unavailableHigh Performance: Safety evidence unavailable

Club Dinghy

Becalmed

High Performance

Becalmed

Scored across the racing day

Right now

Wind

8 kn

SE · 14 km/h

Gusts

19 kn

2.6x · 36 km/h

Feels like

18°C

Wave height

1.8 m

Best window (Club)

15:00 to 19:00

Best window (HP)

15:00 to 19:00

PeakWave scores are planning signals, not safety clearance. Check local authorities, official bulletins and on-site conditions before you go. Read our editorial policy.

Today, hour by hour

Sailing scores and weather

Club Dinghy scoreHigh Performance score

09:00☀️

Club Dinghy

Caution

Full confidence

High Performance

Caution

Full confidence

7 kn SSE

17 kn gusts

15°C

0% rain chance

10:00☀️

Club Dinghy

Caution

Full confidence

High Performance

Caution

Full confidence

8 kn SSE

19 kn gusts

17°C

0% rain chance

11:00☀️

Club Dinghy

Caution

Full confidence

High Performance

Caution

Full confidence

8 kn SSE

19 kn gusts

19°C

0% rain chance

12:00☀️

Club Dinghy

Caution

Full confidence

High Performance

Caution

Full confidence

8 kn SSE

19 kn gusts

20°C

0% rain chance

13:00☀️

Club Dinghy

Caution

Full confidence

High Performance

Caution

Full confidence

7 kn SSE

19 kn gusts

21°C

0% rain chance

14:00☀️

Club Dinghy

Caution

Full confidence

High Performance

Caution

Full confidence

7 kn SSE

18 kn gusts

21°C

0% rain chance

15:00☀️

Club Dinghy

Caution

Full confidence

High Performance

Caution

Full confidence

8 kn SSE

20 kn gusts

21°C

0% rain chance

16:00☀️

Club Dinghy

Caution

Full confidence

High Performance

Caution

Full confidence

9 kn SSE

22 kn gusts

20°C

0% rain chance

17:00☀️

Club Dinghy

Caution

Full confidence

High Performance

Caution

Full confidence

10 kn SSE

22 kn gusts

18°C

0% rain chance

18:00☀️

Club Dinghy

Caution

Full confidence

High Performance

Caution

Full confidence

10 kn SSE

23 kn gusts

16°C

0% rain chance

The category scores are separate stored forecast products. Missing scores, weather or safety evidence stay unavailable rather than being borrowed or inferred.