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knmi_harmonie

MF Arome 1.3

UKMO UK 2

DMI HARMONIE 2

KNMI 2

DWD Icon D 2

MF Arome 2.5

KNMI EU 5.5

DWD ICON EU 7

UKMO Global 10

DWD ICON Global 11

MF Arpege EU 11

GFS global 13

GFS GRAPES 13

BOM ACCESS 15

GEM Global 15

GFS GraphCast 25

ECMWF IFS 25

ECMWF AIFS 28

ECMWF IFS 44

JMA gSM 55

MF Arpege 55

Model	knmi_harmonie_arome_netherlands run: 30/04 12:12																																						IFS HD 2.5 km run: 30/04 12:12																																																																GFS 13 km run: 30/04 12:12
Date Optimal	We 30 14h	We 30 15h	We 30 16h	We 30 17h	We 30 18h	We 30 19h	We 30 20h	We 30 21h	Th 1 7h	Th 1 8h	Th 1 9h	Th 1 10h	Th 1 11h	Th 1 12h	Th 1 13h	Th 1 14h	Th 1 15h	Th 1 16h	Th 1 17h	Th 1 18h	Th 1 19h	Th 1 20h	Th 1 21h	Fr 2 7h	Fr 2 8h	Fr 2 9h	Fr 2 10h	Fr 2 11h	Fr 2 12h	Fr 2 13h	Fr 2 14h	Fr 2 15h	Fr 2 16h	Fr 2 17h	Fr 2 18h	Fr 2 19h	Fr 2 20h	Fr 2 21h	Sa 3 7h	Sa 3 8h	Sa 3 9h	Sa 3 10h	Sa 3 11h	Sa 3 12h	Sa 3 13h	Sa 3 14h	Sa 3 15h	Sa 3 16h	Sa 3 17h	Sa 3 18h	Sa 3 19h	Sa 3 20h	Sa 3 21h	Su 4 7h	Su 4 8h	Su 4 9h	Su 4 10h	Su 4 11h	Su 4 12h	Su 4 13h	Su 4 14h	Su 4 15h	Su 4 16h	Su 4 17h	Su 4 18h	Su 4 19h	Su 4 20h	Su 4 21h	Mo 5 7h	Mo 5 8h	Mo 5 9h	Mo 5 10h	Mo 5 11h	Mo 5 12h	Mo 5 13h	Mo 5 14h	Mo 5 15h	Mo 5 16h	Mo 5 17h	Mo 5 18h	Mo 5 19h	Mo 5 20h	Mo 5 21h	Tu 6 6h	Tu 6 7h	Tu 6 8h	Tu 6 9h	Tu 6 10h	Tu 6 11h	Tu 6 12h	Tu 6 13h	Tu 6 14h	Tu 6 15h	Tu 6 16h	Tu 6 17h	Tu 6 18h	Tu 6 19h	Tu 6 20h	Tu 6 21h	We 7 6h	We 7 7h	We 7 8h	We 7 9h	We 7 10h	We 7 11h	We 7 12h	We 7 13h	We 7 14h	We 7 15h	We 7 16h	We 7 17h	We 7 18h	We 7 19h	We 7 20h	We 7 21h	Th 8 6h	Th 8 7h	Th 8 8h	Th 8 9h	Th 8 10h	Th 8 11h	Th 8 12h	Th 8 13h	Th 8 14h	Th 8 15h	Th 8 16h	Th 8 17h	Th 8 18h	Th 8 19h	Th 8 20h	Th 8 21h	Fr 9 6h	Fr 9 7h	Fr 9 8h	Fr 9 9h	Fr 9 10h	Fr 9 11h	Fr 9 12h	Fr 9 13h	Fr 9 14h	Fr 9 15h	Fr 9 16h	Fr 9 17h	Fr 9 18h	Fr 9 19h	Fr 9 20h	Fr 9 21h	Sa 10 6h	Sa 10 7h	Sa 10 8h	Sa 10 9h	Sa 10 10h	Sa 10 11h	Sa 10 12h	Sa 10 13h	Sa 10 14h	Sa 10 15h	Sa 10 16h	Sa 10 17h	Sa 10 18h	Sa 10 19h	Sa 10 20h	Sa 10 21h	Su 11 6h	Su 11 7h	Su 11 8h	Su 11 9h	Su 11 10h	Su 11 11h	Su 11 12h	Su 11 13h	Su 11 14h	Su 11 15h	Su 11 16h	Su 11 17h	Su 11 18h	Su 11 19h	Su 11 20h	Su 11 21h	Mo 12 6h	Mo 12 7h	Mo 12 8h	Mo 12 9h	Mo 12 10h	Mo 12 11h	Mo 12 12h	Mo 12 13h	Mo 12 14h	Mo 12 15h	Mo 12 16h	Mo 12 17h	Mo 12 18h	Mo 12 19h	Mo 12 20h	Mo 12 21h	Tu 13 6h	Tu 13 7h	Tu 13 8h	Tu 13 9h	Tu 13 10h	Tu 13 11h	Tu 13 12h	Tu 13 13h	Tu 13 14h	Tu 13 15h	Tu 13 16h	Tu 13 17h	Tu 13 18h	Tu 13 19h	Tu 13 20h	Tu 13 21h	We 14 6h	We 14 7h	We 14 8h	We 14 9h	We 14 10h	We 14 11h	We 14 12h	We 14 13h	We 14 14h	We 14 15h	We 14 16h	We 14 17h	We 14 18h	We 14 19h	We 14 20h	We 14 21h	Th 15 6h	Th 15 7h	Th 15 8h	Th 15 9h	Th 15 10h	Th 15 11h	Th 15 12h	Th 15 13h	Th 15 14h	Th 15 15h	Th 15 16h	Th 15 17h	Th 15 18h	Th 15 19h	Th 15 20h	Th 15 21h
Wind Dir.
Wind Spd. (kn)	5	8	9	9	7	5	3	5	4	4	3	2	3	3	3	4	4	4	4	3	2	1	1	2	2	2	2	3	4	5	7	6	8	6	6	7	6	7	3	3	2	2	2	2	3	4	6	8	9	10	11	11	11	9	9	9	9	9	10	11	11	12	12	12	13	12	12	11	11	11	11	12	12	13	13	13	13	13	13	13	12	11	10	6	6	6	6	7	8	9	9	10	10	10	10	10	9	9	7	2	3	3	4	5	5	6	6	6	6	6	6	6	6	5	4	3	3	3	3	3	4	5	7	7	7	6	6	5	4	3	3	3	3	3	3	4	4	5	6	6	6	5	5	5	4	3	3	7	6	5	4	5	6	7	9	11	11	12	12	12	11	11	10	7	7	7	7	8	8	9	10	10	10	10	9	9	8	7	6	3	3	3	4	4	5	5	6	7	8	9	9	10	10	10	10	6	7	7	7	7	7	7	8	8	8	7	7	6	6	5	4	9	10	11	12	13	14	14	14	14	13	12	11	10	10	10	9	6	7	7	8	8	9	10	10	11	10	10	10	9	8	6	5
Gusts (kn)	12	15	17	17	16	14	9	8	6	7	7	7	8	8	9	10	10	10	10	9	6	5	3	8	5	5	6	8	10	10	15	14	15	15	13	14	14	13	6	7	9	11	12	13	15	18	19	19	20	20	21	21	19	15	15	16	17	18	19	21	22	24	25	26	26	25	24	23	18	19	8	9	9	12	14	16	19	21	24	24	25	26	23	11	12	12	15	17	20	20	21	21	21	21	21	22	23	24	21	12	13	13	15	16	18	19	21	22	14	13	13	14	15	16	18	21	21	21	20	20	20	19	19	18	17	16	15	14	13	13	12	12	11	11	10	9	8	8	8	8	8	8	9	9	10	10	10	4	7	9	9	9	9	9	10	10	12	13	14	14	13	12	11	11	10	9	8	8	8	8	8	8	8	9	9	9	9	9	10	12	14	15	14	13	13	13	13	13	13	12	12	11	10	8	6	16	16	16	15	14	14	14	15	16	16	17	17	18	19	21	22	17	17	16	16	16	17	17	17	18	18	18	19	19	19	19	18	15	14	13	13	13	13	13	14	15	15	15	15	15	14	13	11
Wave Direction
Wave Ht. (m)	0.1	0.2	0.3	0.2	0.2	0.2	0.2	0.2	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.2	0.2	0.3	0.4	0.5	0.5	0.5	0.5	0.5	0.5	0.4	0.4
Wave Per.	4	2	2	2	2	3	3	3	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	4	3	3	2	2	2	3	3	3	3	3	3	3
Wave Energy (Kj)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0	0	0	0	1	1	2	2	3	3	2	2	2	2
Temp. (°C)	22	21	21	20	20	20	20	20	14	16	18	21	21	22	23	24	24	24	22	22	21	21	20	15	16	16	17	17	19	20	18	22	21	21	21	20	18	16	10	10	12	14	16	17	18	18	18	17	16	14	12	11	10	9	9	9	9	10	10	10	10	10	10	10	9	9	9	9	8	8	9	9	10	10	10	10	10	10	10	9	9	9	8	8	8	8	9	9	10	11	11	11	11	11	11	11	10	10	9	8	8	9	10	10	11	12	12	12	12	12	12	12	11	11	10	7	7	8	9	10	12	13	14	15	15	15	15	14	14	13	12	10	11	12	13	13	14	14	15	15	15	15	14	14	13	13	12	12	12	12	11	11	11	11	10	10	10	10	10	10	10	10	9	8	8	9	9	10	10	10	11	11	11	11	11	10	10	9	8	6	6	7	8	9	10	11	12	13	13	13	12	12	11	10	10	7	8	8	9	9	10	11	11	11	11	11	11	10	10	9	9	9	9	10	10	10	10	10	10	10	10	10	10	10	10	10	9	10	11	12	13	15	16	17	17	18	18	18	18	17	16	15	14
Rain (mm)																																																		0.1	0.1	0.1	0.4						0.1	0.1	0.1	0.1	0.1	0.1							0.1	0.1	0.1	0.3	0.3	0.3											0.1	0.1	0.1	0.1	0.1	0.1																																																											0.4	0.4	0.4	0.4	0.4	0.4											0.1	0.1	0.1	0.1	0.1	0.1																																											0.1	0.1	0.1	0.1	0.1	0.1	0.3	0.3	0.3	0.3	0.3	0.3
Cloud Cov. (%)	77	93	100	100	99	99	61	88		1			21			94	99	99	49	100	100	100	100	59	100	98	98	40	98	84	91	57	4	97	38	2			34	35	42	53	62	69	74	72	55	31	21	43	78	100	90	65	86	93	93	90	82	69	59	52	46	45	52	64	69	61	2		2	6	12	22	35	42	40	34	26	17	7			51	64	73	75	73	69	64	58	52	45	38	31	25	20	18	20	92	98	100	94	83	72	60	48	39	37	39	42	45	48	50	48	21	20	19	20	22	24	26	29	30	30	29	28	28	28	30	35	88	89	86	76	62	48	34	19	8	3	1				4	14	100	100	100	94	85	75	64	53	44	38	34	30	26	23	20	16	7	10	11	10	7	5	3	1		2	5	8	11	14	15	14	10	13	15	16	16	16	15	14	13	12	10	9	7	6	4	2	16	19	21	19	16	12	8	3									34	43	53	64	75	85	93	100	100	91	75	59	42	25	13	9	7	15	22	28	34	40	30	20	10	8	6	4	3	1		11
Tide Ht.	-0.8	-1.1	-0.9	-0.0	0.8	1.0	0.7	0.3	1.3	1.1	0.6	0.2	-0.0	-0.1	-0.2	-0.5	-0.9	-1.1	-0.7	0.2	0.8	0.8	0.4	1.0	1.2	0.9	0.5	0.2	0.0	-0.1	-0.2	-0.5	-0.8	-0.9	-0.5	0.3	0.7	0.6	0.3	1.0	1.1	0.8	0.5	0.3	0.1	-0.0	-0.2	-0.5	-0.7	-0.7	-0.3	0.3	0.6	-0.3	0.3	0.9	0.9	0.7	0.6	0.4	0.1	-0.0	-0.2	-0.5	-0.6	-0.6	-0.2	0.3	-0.6	-0.3	0.3	0.7	0.8	0.7	0.7	0.5	0.2	-0.1	-0.2	-0.4	-0.5	-0.5	-0.2	-0.6	-0.6	-0.6	-0.3	0.1	0.6	0.7	0.8	0.8	0.5	0.1	-0.1	-0.2	-0.4	-0.5	-0.5	-0.5	-0.5	-0.6	-0.6	-0.4	0.1	0.5	0.7	0.9	0.9	0.5	0.1	-0.1	-0.2	-0.4	-0.6	-0.4	-0.5	-0.5	-0.6	-0.7	-0.5	0.0	0.5	0.8	1.0	0.9	0.4	0.0	-0.1	-0.2	-0.4	-0.2	-0.4	-0.4	-0.5	-0.7	-0.8	-0.5	0.1	0.6	0.9	1.0	0.8	0.3	-0.0	-0.2	-0.3	0.3	-0.2	-0.3	-0.4	-0.5	-0.7	-0.8	-0.4	0.2	0.7	0.9	1.0	0.7	0.2	-0.1	-0.2	0.6	0.2	-0.2	-0.3	-0.4	-0.6	-0.8	-0.8	-0.3	0.4	0.8	0.9	0.9	0.5	0.1	-0.1	0.8	0.5	0.1	-0.2	-0.3	-0.4	-0.6	-0.8	-0.7	-0.1	0.6	0.8	0.9	0.7	0.3	-0.0	0.9	0.7	0.4	0.0	-0.2	-0.3	-0.5	-0.7	-0.8	-0.5	0.2	0.7	0.8	0.7	0.5	0.1	0.9	0.8	0.6	0.3	-0.0	-0.2	-0.3	-0.6	-0.8	-0.7	-0.2	0.5	0.8	0.7	0.5	0.2	1.0	0.9	0.7	0.4	0.2	-0.1	-0.2	-0.4	-0.6	-0.8	-0.5	0.1	0.7	0.8	0.5	0.3
Tide Dir.		low			high				high								low				high			high									low				high			high									low				high			high									low							high									low				low						high							low				low						high							low					low					high											low						high											low					high												low					high												low				high												low				high					high								low				high				high									low			high
Tide Time		15:10			18:50				07:10								15:50				19:30			07:50									16:40				20:10			08:40									17:30				21:00			09:40									18:20							10:50									19:30				07:20						13:30							20:40				08:50						14:30							21:50					10:00					15:10											10:50						16:00											11:40					16:40												12:30					17:20												13:10				17:40												13:50				17:40					06:00								14:20				18:10				06:30									15:00			18:40

Level: Beginner, Intermediate, Expert

Type: Ocean

Water type: Shallow, Chop, Small wave, Medium wave

Water hazards: Mole

Water quality: Cloudy

Infos: From choppy to real big waves, depending on the wind directions. Most important: for over 500 metres the water is unbelievable shallow, you can't really swim unless you go far far away.

Beach type & size: Sand - Big

Infos: Big sandy beach. This beach is the widest beach in the Netherlands. Never too crowded. If you stay at the entry of the beach, yes everybody is hanging around on a small spot (lazy bones). Just 4 minutes walking and the beach is empty. A lot of shelfs though.

Identified hazards: None

Beachgoer: July, August

Weather specificities: In the summer a shorty or a short arm. In winter a good steamer or drysuit.

Wind type: Frontal

Wind specificities: Southwest is the predominant direction. Nice winds with depressions, because there is hardly any stable wind (thermals) in summer. Fall and spring usually provides the best winds, but it can be unpredictable in storms. Winter actually has the most winds. Best wind directions: S, SW, N and NW.

Best months: March, April, May, September, October, November

Access description: by Car - From Amsterdam follow Beverwijk-Ijmuiden (by car). There are over 200 beach houses situated on the IJmuiden beach. The beach is very very wide and empty too, so a lot of privacy. Best spot to stay is to rent a beach house, overlooking the sea or a beach house which is after the 1st row. There are 3 societies of beach houses on the location. 1 society is for people who do not want to have too many rules, life free, dogs cats. The other one is for people with children, a community with social control. the other society of beach houses is at the harbour (no information available). To get there you can take the bus from the centre of Amsterdam (every half hour). The bus takes you in 45 minutes next to the beach (1 minute walking from the bus stop). From Amsterdam Central station, there is also a hoovercraft which takes you there in 20 minutes (about Euro 5). Then take the bus for 2 more stops.

Specific rules: None

Extra: A very professional life guard is overlooking the area, car and tower inspection.

Accommodations: Shop, Rescue, Shower, Toilet, Food, Parking

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