default:

GFS HRRR 3 km

GEM HRDPS 2.5

GFS HRRR 3

GEM regional 10

UKMO Global 10

DWD ICON Global 11

GFS GRAPES 13

GFS global 13

BOM ACCESS 15

GEM Global 15

ECMWF IFS 25

GFS GraphCast 25

JMA gSM 55

MF Arpege 55

Model	GFS HRRR 3 km run: 30/04 10:40																																			GFS 13 km run: 30/04 10:40
Date Optimal	We 30 6h	We 30 7h	We 30 8h	We 30 9h	We 30 10h	We 30 11h	We 30 12h	We 30 13h	We 30 14h	We 30 15h	We 30 16h	We 30 17h	We 30 18h	We 30 19h	Th 1 6h	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	Fr 2 6h	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	Sa 3 6h	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	Su 4 6h	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	Mo 5 6h	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	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	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	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	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	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	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	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	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	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	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
Wind Dir.
Wind Spd. (kn)	13	11	11	8	8	5	10	13	13	11	10	9	5	5	4	5	6	6	7	6	6	7	8	7	8	9	9	9	11	13	15	16	15	14	14	14	14	14	14	15	14	13	10	13	12	11	13	15	16	17	17	18	19	20	20	20	10	9	10	12	12	10	10	9	10	10	9	9	7	4	9	10	11	12	14	16	15	13	12	10	9	9	8	7	7	7	8	8	7	5	0	6	10	11	12	13	14	15	9	11	13	14	15	16	16	16	15	14	13	11	8	4	6	8	8	9	8	7	5	6	8	8	8	9	10	10	8	9	10	9	10	11	13	14	14	13	12	10	8	6	4	6	7	9	10	11	11	12	12	12	11	11	11	11	8	9	9	9	10	12	11	9	7	7	7	7	7	6	3	3	3	3	2	3	5	7	8	9	10	10	10	10	10	10	10	10	11	11	10	9	8	9	10	10	10	10	11	12	13	14	15	16	18	18	19	18	18	17	16	16	11	11	11	11	11	10	8	6	4	3	1	1	2	4
Gusts (kn)	20	17	18	21	21	15	18	21	20	18	17	13	10	6	11	13	10	8	8	7	7	8	9	9	10	11	12	14	24	29	30	29	26	25	24	24	26	28	29	30	29	30	23	26	24	27	27	29	30	32	32	35	36	37	38	38	20	20	17	17	16	15	14	13	13	15	14	15	14	15	17	15	14	15	16	17	17	16	14	13	12	10	8	7	11	10	8	7	6	6	6	6	7	11	15	20	22	25	25	23	22	22	22	23	22	21	20	19	17	15	11	6	3	5	7	7	8	8	7	5	5	6	8	10	12	14	17	18	18	18	17	17	17	17	16	16	17	16	13	9	4	7	9	12	15	17	18	17	17	17	17	19	23	28	19	16	14	15	16	16	14	10	7	6	6	5	4	4	6	7	7	6	5	4	4	5	6	8	10	13	14	15	19	18	16	16	16	17	17	18	18	18	18	18	19	21	26	28	29	31	31	32	32	31	31	31	31	31	32	33	19	17	16	16	16	16	16	16	15	15	15	15	16	18
Wave Direction
Wave Ht. (m)	1.3	1.3	1.2	1.2	1.1	1.0	0.9	0.9	0.8	0.7	0.7	0.6	0.6	0.5	0.4	0.4	0.4	0.4	0.4	0.4	0.3	0.3	0.3	0.3	0.3	0.3	0.3	0.3	0.5	0.5	0.5	0.6	0.7	0.8	0.9	0.9	0.9	0.9	1.0	1.0	1.0	1.0	0.9	0.8	0.8	0.8	0.7	0.7	0.7	0.6	0.6	0.6	0.6	0.6	0.7	0.7	0.9	1.0	1.0	1.0	1.0	1.0	0.9	0.9	0.9	0.8	0.8	0.7	0.7	0.7	0.5	0.5	0.5	0.4	0.5	0.5	0.6	0.6	0.7	0.7	0.7	0.7	0.7	0.7	0.6	0.6	0.6	0.6	0.6	0.6	0.6	0.6	0.6	0.6	0.6	0.7	0.7	0.7
Wave Per.	4	4	4	4	4	4	4	4	4	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	3	3	3	3	3	3	3	4	4	4	4	4	4	4	5	5	5	5	5	5	5	5	5	5	5	5	5	4	4	4	4	4	4	4	4	4	5	5	5	5	5	5	5	5	5	5	5	4	4	4	4	4	4	4	4	4	4	3	3	3	3	3	3	3	3	4	4	4	4	4
Wave Energy (Kj)	40	37	33	31	27	24	20	17	15	12	11	10	9	9	5	5	4	4	4	4	4	4	3	3	3	3	3	3	3	3	4	4	6	9	12	13	15	16	17	17	17	19	18	17	17	15	14	14	12	12	12	12	12	11	11	11	18	20	20	22	21	21	20	19	18	17	16	15	14	12	7	7	7	6	6	6	6	6	7	8	8	8	8	8	5	5	5	5	5	5	6	6	6	6	7	7	8	8
Temp. (°C)	11	12	14	17	16	14	17	18	18	18	17	17	16	11	4	6	8	9	9	10	10	10	10	10	10	10	9	9	11	11	12	12	13	13	12	12	13	13	13	13	13	12	12	12	12	12	12	13	13	13	14	14	14	14	13	13	10	9	10	11	11	12	14	14	15	15	15	15	15	13	7	8	9	9	9	9	9	10	10	11	11	11	10	9	7	9	10	11	12	13	13	13	13	13	13	13	12	11	13	15	15	15	13	12	12	12	13	13	13	13	12	11	8	9	10	11	11	12	12	12	12	11	10	9	9	9	11	13	15	16	17	18	19	19	19	19	20	19	18	16	11	12	13	14	14	15	15	15	15	16	16	17	16	15	17	18	18	17	15	13	12	11	11	12	12	13	12	11	9	10	11	12	13	14	14	14	14	13	13	12	12	11	11	12	12	13	14	14	14	14	14	14	14	15	14	13	13	13	13	14	15	16	16	16	15	15	14	14	13	13	11	11	11	12	13	13	14	14	15	15	15	15	15	14
Rain (mm)																													0.1															0.3
Cloud Cov. (%)	20	4	26	100	100	100	2	1			10	100	80	100	92	100	100	100	100	100	96	96	100	100	98	44	27	100	100	100	100	100	99	100	100	100	100	100	100	100	100	17	91	100	100	100	100	100	100	99	78	72	100	94	90	41	100	100	100	100	100	100	100	100	100	12	12	10	12	100	1	1	2	3	4	5	14	22	31	54	77	100	99	97	48	28	7	7	8	8	7	6	5	4	3	2	1	1	30	33	37	41	46	50	33	17		1	1	2	2	2	24	16	9	9	8	8	9	10	11	31	51	71	50	30	22	22	22	24	26	28	19	9		2	3	5	28	50	28	34	39	39	38	38	28	17	7	5	2				32	27	21	41	62	82	88	94	100	99	98	97	87	77	80	60	40	57	74	91	94	97	100	100	100	100	100	100	85	84	83	85	87	89	83	78	72	80	87	95	88	82	100	100	100	100	100	100	100	99	99	96	92	89	93	96	65	32		2	4	6	6	5	5	5	6	6	11	16
Tide Ht.	-0.4	-0.7	-0.7	-0.6	-0.5	-0.4	-0.2	0.1	0.4	0.5	0.4	0.2	-0.2	-0.4	0.1	-0.4	-0.6	-0.7	-0.6	-0.5	-0.4	-0.2	0.1	0.4	0.5	0.4	0.1	-0.2	0.5	0.1	-0.4	-0.6	-0.6	-0.6	-0.4	-0.3	-0.1	0.1	0.4	0.5	0.4	0.1	0.7	0.4	0.0	-0.3	-0.6	-0.6	-0.5	-0.4	-0.3	-0.1	0.1	0.4	0.5	0.4	0.7	0.6	0.4	0.0	-0.3	-0.5	-0.5	-0.4	-0.3	-0.3	-0.1	0.2	0.4	0.5	0.5	0.6	0.6	0.3	-0.0	-0.3	-0.5	-0.4	-0.4	-0.3	-0.2	-0.0	0.2	0.4	0.2	0.4	0.5	0.5	0.3	-0.0	-0.3	-0.4	-0.4	-0.3	-0.2	-0.1	0.0	0.3	-0.0	0.2	0.4	0.5	0.4	0.2	-0.1	-0.3	-0.4	-0.4	-0.3	-0.2	-0.1	0.1	-0.2	-0.0	0.2	0.3	0.4	0.4	0.2	-0.1	-0.3	-0.4	-0.3	-0.2	-0.1	0.0	-0.3	-0.2	-0.0	0.1	0.3	0.4	0.3	0.1	-0.1	-0.3	-0.3	-0.3	-0.1	-0.0	-0.3	-0.3	-0.2	-0.0	0.2	0.3	0.4	0.3	0.1	-0.2	-0.3	-0.3	-0.2	-0.1	-0.4	-0.3	-0.3	-0.2	-0.0	0.2	0.3	0.3	0.2	-0.0	-0.2	-0.3	-0.3	-0.1	-0.5	-0.4	-0.3	-0.3	-0.1	0.0	0.2	0.3	0.3	0.2	-0.1	-0.3	-0.3	-0.2	-0.5	-0.5	-0.4	-0.3	-0.2	-0.1	0.1	0.2	0.3	0.2	0.1	-0.1	-0.3	-0.3	-0.4	-0.5	-0.5	-0.4	-0.3	-0.2	-0.0	0.1	0.3	0.3	0.2	0.0	-0.2	-0.3	-0.2	-0.4	-0.5	-0.5	-0.4	-0.3	-0.1	0.0	0.2	0.3	0.2	0.1	-0.0	-0.2
Tide Dir.		low								high				low			low								high							low								high							low								high		high					low								high		high					low							high			high					low										high					low										high					low										high				low											high				low										high					low			low							high				low			low								high				low			low							high					low			low							high
Tide Time		07:50								15:10				19:40			08:50								16:10							09:40								17:10							10:40								18:00		06:20					11:30								19:00		07:20					12:20							19:50			08:20					13:20										09:20					14:10										10:10					15:00										11:10				15:40											12:00				16:20										12:50					17:00			06:00							13:30				17:50			06:40								14:10				18:30			07:30							14:40					19:20			08:20							15:20

Level: Beginner, Intermediate, Expert

Type: Ocean

Water type: Shallow, Flat, Chop, Small wave

Water hazards: Ships

Water quality: Clean

Infos: Flat to choppy conditions depending on wind speeds, with some waves in the boat channel towards the east end of the beach. At low tide the water can be shallow enough to stand up even out ways from shore.

Beach type & size: Sand - Big

Infos: White sandy beach but tends to get seaweed accumulations into August and September. The beach is fairly deep so there is ample room to launch kites.

Identified hazards: None

Beachgoer: None

Weather specificities: No wetsuit required July and August. Shorty required June and September. Full wetsuit required May and October. Drysuit required November to April.

Wind type: Thermal, Frontal

Wind specificities: Prevailing winds are SW and Kalmus has been measured as being the windiest spot North of Hatteras on the East coast. In the summer winds commonly reach 15-20 knots.

Best months: May, June, July, August, September

Access description: by Car - Follow Route 3 south to Cape Cod. Get on Route 6 (Midcape hwy) and take exit 6. Follow to airport rotary and take a right at rotary. Follow to end. Kalmus is on the left.

Specific rules: Time, Fees

Extra: Kiteboarding only allowed after 4pm during season. Windsurfing zone: straight line from the western end of Kalmus to the channel markers for Hyannis Harbor. In season parking fees are 10 USD.

Accommodations: Shower, Toilet, Food, Parking

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Optimal Wind Direction

Optimal Speed (kn)

Optimal Wave Conditions

Any Direction

Optimal height (m)

No data

Period (sec)

No data

Optimal Tide Height

Tide moment:

+/- 2hrs around the high tide

mid tide

+/- 2hrs around the low tide

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