Waves in Brännö

Hourly wave forecast for 7 days · updated today, Thursday, October 29, at 9:21 am (CET)

Now · significant height 2.4 ft

Sea state: Slight · Douglas 3
Period: 3.7 s · W
Swell: 0.6 ft · 4 s
Highest expected: 5.0 ft

Today the sea at Brännö is slight: 2.4 ft waves with a period of 3.7 s from the west. The swell, 0.6 ft at 4 s, comes from the south-southwest.

Wave height, next 7 days

1.02.03.0 ft 2.4 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 common1.2 ft
Significant2.4 ft
Highest expected5.0 ft

One wave in seven is higher than the significant height, and about 3 times a day one reaches 5.0 ft. Before heading out, expect waves of up to 5.0 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	2.4 ft	Slight	W	4 s	1.0 ft WSW	14 mph W
Fri 30	2.0 ft	Slight	WNW	4 s	1.4 ft WNW	4 mph WNW
Sat 31	0.3 ft	Calm (rippled)	WNW	4 s	0.3 ft WNW	5 mph S
Sun 1	1.8 ft	Slight	SW	3 s	0.9 ft W	10 mph SSE
Mon 2	1.9 ft	Slight	N	3 s	1.0 ft NW	12 mph NNE
Tue 3	0.8 ft	Smooth	WNW	3 s	0.7 ft WNW	10 mph WNW
Wed 4	0.6 ft	Smooth	W	3 s	0.5 ft W	12 mph N

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	2.2 ft	2.2 ft	2.3 ft	2.4 ft	2.2 ft	2.1 ft	2.1 ft	2.1 ft
Period	3.4 s	3.5 s	3.6 s	3.7 s	3.7 s	3.6 s	3.7 s	3.7 s
Direction	SW	SW	WSW	W	W	W	W	WNW
Swell	0.5 ft · 5 s	0.9 ft · 4 s	0.9 ft · 3 s	0.7 ft · 3 s	0.9 ft · 4 s	0.7 ft · 5 s	0.9 ft · 4 s	0.7 ft · 4 s
Wind (mph)	12 SSW	9 WSW	8 W	9 W	12 W	13 W	10 W	6 W

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	2.6 ft SW	4 s	1.3 ft SW
Tue 27	3.9 ft SSW	5 s	1.0 ft W
Mon 26	5.9 ft WSW	6 s	2.0 ft WNW
Sun 25	5.6 ft S	6 s	1.0 ft SSW
Sat 24	5.6 ft SSE	6 s	2.0 ft S
Fri 23	2.3 ft SSW	4 s	1.0 ft SSW
Thu 22	2.3 ft S	4 s	1.0 ft S

Show all 14 days

Day	Max wave	Period	Swell
Wed 21	2.6 ft SE	4 s	1.3 ft S
Tue 20	1.6 ft ESE	3 s	0.7 ft SSE
Mon 19	0.7 ft SE	3 s	0.3 ft SE
Sun 18	1.0 ft N	3 s	0.7 ft NNW
Sat 17	2.0 ft NNW	4 s	1.0 ft NW
Fri 16	2.6 ft SW	4 s	1.6 ft SSW
Thu 15	3.0 ft SSW	4 s	1.3 ft WNW

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 BrännöQuestions

How are the waves today in Brännö?

Slight (2.4 ft with a period of 3.7 s from the west). The highest wave to expect is around 5.0 ft.

Which day will have the biggest waves this week?

Thursday 29, with waves up to 2.4 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 5.0 ft.

More about Brännö today

Waves near Brännö

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 1.4 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 9:21 am (local time).

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