Waves in Tanohata

Hourly wave forecast for 7 days · updated today, Thursday, October 29, at 8:35 am (GMT+9)

Now · significant height 2.8 ft

Sea state: Slight · Douglas 3
Period: 7.5 s · NNE
Swell: 2.5 ft · 5 s
Highest expected: 5.7 ft

Today the sea at Tanohata is slight: 2.8 ft waves with a period of 7.5 s from the north-northeast. The swell, 2.5 ft at 5 s, comes from the north. Biggest waves: Sunday 1, with waves up to 5.9 ft (moderate).

Wave height, next 7 days

2.04.06.0 ft 5.9 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 common1.4 ft
Significant2.8 ft
Highest expected5.7 ft

One wave in seven is higher than the significant height, and about 3 times a day one reaches 5.7 ft. Before heading out, expect waves of up to 5.7 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 · week peak	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	4.7 ft	Moderate	ENE	8 s	4.3 ft N	24 mph S
Fri 30	4.9 ft	Moderate	SE	8 s	4.8 ft SE	14 mph S
Sat 31	5.4 ft	Moderate	SE	9 s	5.3 ft SE	16 mph WNW
Sun 1	5.9 ft	Moderate	ENE	11 s	4.1 ft NE	13 mph WNW
Mon 2	5.3 ft	Moderate	SSE	11 s	3.5 ft SE	18 mph S
Tue 3	4.4 ft	Moderate	SE	11 s	3.4 ft SE	16 mph WNW
Wed 4	3.9 ft	Slight	E	9 s	2.8 ft E	12 mph NNE

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	4.7 ft	3.7 ft	3.1 ft	2.8 ft	2.6 ft	3.3 ft	4.1 ft	4.4 ft
Period	7.2 s	7.2 s	7.3 s	7.6 s	7.7 s	5.8 s	5.6 s	5.7 s
Direction	N	N	N	NNE	NNE	SE	SSE	SSE
Swell	4.3 ft · 6 s	3.4 ft · 5 s	2.8 ft · 5 s	2.4 ft · 5 s	2.0 ft · 5 s	1.6 ft · 5 s	1.2 ft · 9 s	1.2 ft · 9 s
Wind (mph)	9 NW	6 W	6 WSW	1 WNW	19 SSE	23 SSE	23 S	20 S

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	7.2 ft NNW	7 s	4.9 ft N
Tue 27	3.0 ft ESE	9 s	2.3 ft SE
Mon 26	4.6 ft NE	8 s	3.3 ft NE
Sun 25	3.9 ft SE	8 s	3.0 ft SE
Sat 24	3.0 ft SE	9 s	2.6 ft SSE
Fri 23	4.9 ft E	9 s	3.6 ft E
Thu 22	7.5 ft NE	9 s	5.2 ft ENE

Show all 14 days

Day	Max wave	Period	Swell
Wed 21	4.9 ft SE	9 s	3.9 ft SE
Tue 20	3.6 ft SE	9 s	3.3 ft SE
Mon 19	5.6 ft SSE	8 s	4.3 ft SE
Sun 18	3.9 ft NE	8 s	3.3 ft NNE
Sat 17	4.6 ft NNE	9 s	3.6 ft N
Fri 16	4.3 ft E	10 s	3.6 ft E
Thu 15	5.2 ft E	10 s	4.9 ft ESE

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 TanohataQuestions

How are the waves today in Tanohata?

Slight (2.8 ft with a period of 7.5 s from the north-northeast). The highest wave to expect is around 5.7 ft.

Which day will have the biggest waves this week?

Sunday 1, with waves up to 5.9 ft (moderate).

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 5.7 ft.

More about Tanohata today

Waves near Tanohata

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 10 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 8:35 am (local time).

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