Waves in Bethlehem

Hourly wave forecast for 7 days · updated today, Thursday, October 29, at 12:04 pm (GMT+13)

Now · significant height 2.2 ft

Sea state: Slight · Douglas 3
Period: 4.1 s · NW
Swell: 1.2 ft · 5 s
Highest expected: 4.6 ft

Today the sea at Bethlehem is slight: 2.2 ft waves with a period of 4.1 s from the northwest. The swell, 1.2 ft at 5 s, comes from the north. Biggest waves: Wednesday 4, with waves up to 4.1 ft (slight).

Wave height, next 7 days

1.02.03.04.0 ft 4.1 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 common1.1 ft
Significant2.2 ft
Highest expected4.6 ft

One wave in seven is higher than the significant height, and about 3 times a day one reaches 4.6 ft. Before heading out, expect waves of up to 4.6 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	2.8 ft	Slight	NW	5 s	1.6 ft N	20 mph W
Fri 30	3.0 ft	Slight	WNW	6 s	1.6 ft N	20 mph WSW
Sat 31	1.4 ft	Smooth	N	11 s	0.7 ft NNE	16 mph WSW
Sun 1	2.8 ft	Slight	NNE	10 s	0.8 ft NNE	9 mph N
Mon 2	3.3 ft	Slight	N	5 s	2.5 ft NNE	11 mph NNE
Tue 3	2.8 ft	Slight	NNE	6 s	2.6 ft NNE	10 mph NNE
Wed 4	4.1 ft	Slight	NNE	6 s	2.8 ft NNE	10 mph NE

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	1.8 ft	1.8 ft	1.8 ft	1.8 ft	2.2 ft	2.6 ft	2.7 ft	2.6 ft
Period	4.8 s	4.7 s	4.9 s	4.5 s	4.1 s	4.1 s	4.2 s	4.3 s
Direction	NNW	NNW	NNW	NNW	NW	NW	NW	NW
Swell	1.0 ft · 5 s	1.1 ft · 5 s	1.2 ft · 5 s	1.2 ft · 5 s	1.2 ft · 5 s	1.4 ft · 5 s	1.5 ft · 5 s	1.6 ft · 5 s
Wind (mph)	12 W	15 WSW	8 WSW	12 W	19 W	20 W	18 W	15 WSW

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	2.3 ft NNW	7 s	2.0 ft N
Tue 27	3.0 ft N	5 s	2.6 ft N
Mon 26	2.0 ft N	10 s	1.3 ft NNE
Sun 25	1.6 ft NNW	10 s	0.7 ft NE
Sat 24	1.0 ft NE	12 s	0.7 ft NE
Fri 23	1.0 ft NE	12 s	1.0 ft NE
Thu 22	1.3 ft NNE	13 s	1.3 ft NE

Show all 14 days

Day	Max wave	Period	Swell
Wed 21	1.3 ft NE	10 s	1.0 ft NE
Tue 20	1.3 ft NE	10 s	1.0 ft NE
Mon 19	1.0 ft NE	9 s	0.7 ft NNE
Sun 18	1.6 ft NE	10 s	1.0 ft NE
Sat 17	2.0 ft E	7 s	1.3 ft NE
Fri 16	3.3 ft NE	8 s	3.3 ft NNE
Thu 15	4.6 ft N	8 s	4.6 ft NNE

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 BethlehemQuestions

How are the waves today in Bethlehem?

Slight (2.2 ft with a period of 4.1 s from the northwest). The highest wave to expect is around 4.6 ft.

Which day will have the biggest waves this week?

Wednesday 4, with waves up to 4.1 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 4.6 ft.

More about Bethlehem today

Waves near Bethlehem

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 12 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 12:04 pm (local time).

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