Waves in Rebun

Hourly wave forecast for 7 days · updated today, Thursday, October 29, at 6:02 pm (GMT+9)

Now · significant height 2.0 ft

Sea state: Slight · Douglas 3
Period: 3.5 s · S
Swell: 0.4 ft · 11 s
Highest expected: 4.3 ft

Today the sea at Rebun is slight: 2.0 ft waves with a period of 3.5 s from the south. The swell, 0.4 ft at 11 s, comes from the southeast. Biggest waves: Sunday 1, with waves up to 2.5 ft (slight).

Wave height, next 7 days

1.02.03.0 ft 2.5 ft Now

Significant height: the average of the highest third of the waves, what an observer would estimate by eye. Swell: waves arriving from far away, longer.

The waves you may find today

Most common1.0 ft
Significant2.0 ft
Highest expected4.3 ft

One wave in seven is higher than the significant height, and about 3 times a day one reaches 4.3 ft. Before heading out, expect waves of up to 4.3 ft.

The Douglas sea state scale

Degree	Name	Wave height
0	Calm (glassy)	0
1	Calm (rippled)	0.0 ft–0.3 ft
2	Smooth	0.3 ft–1.6 ft
3	Slight · today	1.6 ft–4.1 ft
4	Moderate	4.1 ft–8.2 ft
5	Rough	8.2 ft–13.1 ft
6	Very rough	13.1 ft–19.7 ft

Waves day by day

Day	Max wave	Sea state	Direction	Max period	Swell	Max wind
Today	2.0 ft	Slight	SSW	9 s	1.4 ft SSE	17 mph SSW
Fri 30	2.1 ft	Slight	SE	7 s	1.8 ft SE	15 mph SSE
Sat 31	2.3 ft	Slight	S	8 s	1.5 ft SE	21 mph WNW
Sun 1	2.5 ft	Slight	W	10 s	1.0 ft S	24 mph WNW
Mon 2	1.3 ft	Smooth	SE	12 s	1.1 ft SE	12 mph SE
Tue 3	2.1 ft	Slight	SSW	9 s	1.2 ft SE	19 mph NW
Wed 4	1.4 ft	Smooth	SSW	10 s	0.9 ft SE	14 mph WNW

Today, every 3 hours

Time	12:00 am	3:00 am	6:00 am	9:00 am	12:00 pm	3:00 pm	6:00 pm	9:00 pm
Waves	1.2 ft	1.2 ft	0.9 ft	0.6 ft	0.9 ft	1.5 ft	2.0 ft	2.0 ft
Period	4.1 s	4.3 s	5.4 s	8.5 s	4.0 s	3.4 s	3.5 s	3.7 s
Direction	W	W	WSW	S	S	S	S	SSE
Swell	0.5 ft · 7 s	0.5 ft · 7 s	0.7 ft · 3 s	0.5 ft · 7 s	0.4 ft · 11 s	0.4 ft · 11 s	0.4 ft · 11 s	0.5 ft · 11 s
Wind (mph)	12 WNW	12 WNW	6 WNW	7 SSW	17 SW	16 S	15 SSE	13 SSE

Previous days

The waves over the last 14 days. Tap a day to see it hour by hour.

Day	Max wave	Period	Swell
Wed 28	3.3 ft WNW	4 s	0.7 ft SSW
Tue 27	2.0 ft SSE	10 s	1.0 ft SE
Mon 26	1.6 ft NNE	10 s	0.7 ft SE
Sun 25	1.6 ft NNW	9 s	0.7 ft SE
Sat 24	1.0 ft SE	12 s	0.7 ft SE
Fri 23	1.6 ft SSW	8 s	1.0 ft SE
Thu 22	2.6 ft W	6 s	1.0 ft SSE

Show all 14 days

Day	Max wave	Period	Swell
Wed 21	2.3 ft SSE	8 s	2.0 ft SE
Tue 20	1.3 ft SE	9 s	1.3 ft SE
Mon 19	3.9 ft SE	8 s	2.6 ft SE
Sun 18	3.6 ft SE	13 s	0.7 ft SE
Sat 17	2.3 ft WNW	6 s	1.0 ft SSW
Fri 16	1.6 ft SSW	9 s	1.0 ft SE
Thu 15	3.0 ft WSW	6 s	1.3 ft SE

These are the models at the start of each day (ECMWF and GFS; waves from Météo-France), not readings from a weather station: there can be differences at specific spots.

Questions about the waves in RebunQuestions

How are the waves today in Rebun?

Slight (2.0 ft with a period of 3.5 s from the south). The highest wave to expect is around 4.3 ft.

Which day will have the biggest waves this week?

Sunday 1, with waves up to 2.5 ft (slight).

What is the wave period?

The time, in seconds, between two crests. With long periods (over 10 s) waves come from far away, are cleaner and break harder; with short periods they are wind waves, choppier.

What is significant wave height?

The average of the highest third of the waves. One in seven is higher and, a few times a day, one comes in at almost double: today, about 4.3 ft.

More about Rebun today

Waves near Rebun

Only places with a different forecast: spots a few miles apart share the same model cell and wouldn't add anything.

Learn more

Waves: Open-Meteo with Météo-France (MFWAM, up to 10 days) and ECMWF WAM, CC BY 4.0; wave grid point 2.5 mi away. Near the shore, the seabed and the shape of the coast change the waves.

Forecast from Open-Meteo (CC BY 4.0) with models from ECMWF, NOAA, Météo-France, DWD, Copernicus Marine and CAMS. Updated at 6:02 pm (local time).

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