Waves in Rosema

Hourly wave forecast for 7 days · updated today, Wednesday, October 28, at 11:05 pm (GMT)

Now · significant height 1.8 ft

Sea state: Slight · Douglas 3
Period: 8.5 s · SW
Swell: 1.6 ft · 7 s
Highest expected: 3.7 ft

Today the sea at Rosema is slight: 1.8 ft waves with a period of 8.5 s from the southwest. The swell, 1.6 ft at 7 s, comes from the southwest.

Wave height, next 7 days

1.02.03.0 ft 2.3 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 common0.9 ft
Significant1.8 ft
Highest expected3.7 ft

One wave in seven is higher than the significant height, and about 3 times a day one reaches 3.7 ft. Before heading out, expect waves of up to 3.7 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	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	2.3 ft	Slight	SW	9 s	2.1 ft SW	5 mph SW
Thu 29	1.8 ft	Slight	SW	9 s	1.7 ft SW	6 mph S
Fri 30	1.8 ft	Slight	SW	9 s	1.4 ft SSW	6 mph S
Sat 31	1.9 ft	Slight	SSW	10 s	1.5 ft SSW	5 mph SSW
Sun 1	1.8 ft	Slight	SSW	11 s	1.8 ft SW	4 mph SSW
Mon 2	1.9 ft	Slight	SW	12 s	1.8 ft SW	4 mph S
Tue 3	2.2 ft	Slight	SSW	11 s	2.0 ft SSW	6 mph S

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	2.3 ft	2.3 ft	2.2 ft	2.0 ft	1.9 ft	1.9 ft	1.9 ft	1.8 ft
Period	8.5 s	8.5 s	8.3 s	8.3 s	8.3 s	8.3 s	8.4 s	8.5 s
Direction	SW	SW	SW	SW	SW	SW	SW	SW
Swell	1.8 ft · 8 s	2.0 ft · 8 s	2.1 ft · 7 s	2.0 ft · 7 s	1.7 ft · 8 s	1.6 ft · 8 s	1.6 ft · 7 s	1.5 ft · 7 s
Wind (mph)	5 SSW	3 WSW	2 SSE	4 WNW	3 WNW	3 WSW	4 S	2 SE

Previous days

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

Day	Max wave	Period	Swell
Tue 27	2.3 ft SW	9 s	2.3 ft SW
Mon 26	2.3 ft SW	10 s	1.6 ft SW
Sun 25	2.0 ft SW	10 s	1.6 ft SW
Sat 24	2.0 ft SW	9 s	1.3 ft SSW
Fri 23	2.3 ft SSW	8 s	2.0 ft SSW
Thu 22	2.6 ft SSW	10 s	2.3 ft SSW
Wed 21	2.6 ft SSW	12 s	2.3 ft SSW

Show all 14 days

Day	Max wave	Period	Swell
Tue 20	2.3 ft SSW	13 s	2.3 ft SSW
Mon 19	2.3 ft SSW	11 s	2.0 ft SSW
Sun 18	3.0 ft SSW	11 s	3.0 ft SSW
Sat 17	2.3 ft SSW	10 s	2.0 ft SSW
Fri 16	2.0 ft SSW	10 s	1.6 ft SSW
Thu 15	2.0 ft SW	9 s	1.6 ft SSW
Wed 14	2.3 ft SW	9 s	2.3 ft SSW

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 RosemaQuestions

How are the waves today in Rosema?

Slight (1.8 ft with a period of 8.5 s from the southwest). The highest wave to expect is around 3.7 ft.

Which day will have the biggest waves this week?

Wednesday 28, with waves up to 2.3 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 3.7 ft.

More about Rosema today

Waves near Rosema

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 11:05 pm (local time).

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