Waves in Nesna

Hourly wave forecast for 7 days · updated today, Thursday, October 29, at 3:25 am (CET)

Now · significant height 5.2 ft

Sea state: Moderate · Douglas 4
Period: 7.0 s · SW
Swell: 2.9 ft · 11 s
Highest expected: 10 ft

Today the sea at Nesna is moderate: 5.2 ft waves with a period of 7.0 s from the southwest. The swell, 2.9 ft at 11 s, comes from the west.

Wave height, next 7 days

2.04.0 ft 5.2 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 common2.6 ft
Significant5.2 ft
Highest expected10 ft

One wave in seven is higher than the significant height, and about 3 times a day one reaches 10 ft. Before heading out, expect waves of up to 10 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	1.6 ft–4.1 ft
4	Moderate · today	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	5.2 ft	Moderate	WSW	8 s	3.0 ft W	23 mph SW
Fri 30	3.5 ft	Slight	W	7 s	2.4 ft W	10 mph WSW
Sat 31	3.2 ft	Slight	WSW	9 s	1.5 ft W	13 mph SW
Sun 1	2.2 ft	Slight	W	9 s	1.4 ft W	13 mph SW
Mon 2	3.4 ft	Slight	W	7 s	1.7 ft W	19 mph WSW
Tue 3	3.8 ft	Slight	NW	7 s	1.6 ft WNW	19 mph NW
Wed 4	3.4 ft	Slight	W	7 s	1.8 ft W	17 mph WSW

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	5.1 ft	5.2 ft	5.1 ft	5.1 ft	4.8 ft	4.4 ft	3.9 ft
Period	7.4 s	7.0 s	6.9 s	7.0 s	7.3 s	7.7 s	7.6 s	7.4 s
Direction	SW	SW	SW	SW	WSW	WSW	W	W
Swell	2.8 ft · 11 s	2.8 ft · 11 s	2.8 ft · 11 s	2.8 ft · 11 s	2.8 ft · 11 s	3.0 ft · 10 s	2.8 ft · 10 s	2.6 ft · 10 s
Wind (mph)	23 SSW	22 SSW	21 SSW	18 SSW	20 SW	18 WSW	14 WSW	13 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	4.9 ft SW	10 s	3.3 ft WSW
Tue 27	2.0 ft SW	7 s	1.3 ft WSW
Mon 26	2.3 ft SSE	8 s	1.3 ft WSW
Sun 25	3.0 ft ESE	5 s	1.0 ft W
Sat 24	2.0 ft SW	7 s	1.0 ft W
Fri 23	2.6 ft SE	6 s	0.7 ft W
Thu 22	3.0 ft SE	7 s	1.6 ft W

Show all 14 days

Day	Max wave	Period	Swell
Wed 21	3.3 ft SW	13 s	3.0 ft W
Tue 20	5.6 ft W	13 s	4.3 ft W
Mon 19	6.2 ft SW	10 s	4.6 ft W
Sun 18	3.3 ft W	9 s	1.6 ft W
Sat 17	3.3 ft W	9 s	2.3 ft W
Fri 16	7.2 ft W	12 s	5.6 ft W
Thu 15	6.9 ft WSW	13 s	5.9 ft W

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 NesnaQuestions

How are the waves today in Nesna?

Moderate (5.2 ft with a period of 7.0 s from the southwest). The highest wave to expect is around 10 ft.

Which day will have the biggest waves this week?

Thursday 29, with waves up to 5.2 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 10 ft.

More about Nesna today

Waves near Nesna

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 14 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 3:25 am (local time).

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