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Kumimi Beach (20 Mile Beach) conditions

Weather, wind and available nearby ocean forecasts for Kumimi Beach (20 Mile Beach). Model forecasts are separate from station observations.

Coordinates: 21.1060759, -156.7465893

Forecast sources and coverage

Times use Pacific/Honolulu. Weather: available; marine forecast: available. Regional model values are separate from station observations.

Forecast for Pailalo Channel (NOAA HAI1115_23), 2.6 km from Kumimi Beach (20 Mile Beach). Local conditions can differ.

Weather fetched 2026-11-06T11:44:46.150Z.

Marine fetched 2026-11-06T11:44:46.150Z.

Complete hourly weather forecast

Weather model in Pacific/Honolulu
Time	Air °C	Wind km/h	Gust	Wind from °	Rain mm	Rain %	Pressure hPa
Nov 6, 12:00 a.m. HST	24.6	22.4	67.7 km/h	70.0	0.1	0.0	1017.8
Nov 6, 01:00 a.m. HST	24.6	35.3	64.8 km/h	63.0	0.0	0.0	1017.4
Nov 6, 02:00 a.m. HST	24.7	34.9	65.2 km/h	61.7	0.0	0.0	1017.2
Nov 6, 03:00 a.m. HST	24.7	34.6	64.8 km/h	60.2	0.0	1.0	1016.8
Nov 6, 04:00 a.m. HST	24.6	33.8	65.2 km/h	59.3	0.2	2.0	1016.4
Nov 6, 05:00 a.m. HST	24.3	33.5	65.2 km/h	59.8	0.3	4.0	1016.4
Nov 6, 06:00 a.m. HST	24.1	34.6	67.0 km/h	60.6	0.3	7.0	1016.9
Nov 6, 07:00 a.m. HST	24.2	36.0	68.8 km/h	60.2	0.2	11.0	1017.3
Nov 6, 08:00 a.m. HST	24.8	38.9	69.8 km/h	60.4	0.2	14.0	1017.7
Nov 6, 09:00 a.m. HST	25.4	40.3	77.8 km/h	63.1	0.3	14.0	1018.2
Nov 6, 10:00 a.m. HST	25.6	38.9	76.0 km/h	63.8	0.3	12.0	1018.8
Nov 6, 11:00 a.m. HST	26.2	40.7	76.0 km/h	63.5	0.3	12.0	1018.4
Nov 6, 12:00 p.m. HST	26.1	41.4	77.4 km/h	63.3	0.5	13.0	1017.4
Nov 6, 01:00 p.m. HST	25.7	41.8	79.6 km/h	64.4	0.8	16.0	1016.4
Nov 6, 02:00 p.m. HST	25.3	41.0	81.0 km/h	65.1	0.7	20.0	1015.6
Nov 6, 03:00 p.m. HST	25.2	41.4	81.0 km/h	63.4	0.5	28.0	1015.2
Nov 6, 04:00 p.m. HST	25.1	42.1	79.9 km/h	62.1	0.5	38.0	1015.2
Nov 6, 05:00 p.m. HST	24.8	40.3	77.8 km/h	61.8	0.7	47.0	1015.6
Nov 6, 06:00 p.m. HST	24.2	39.2	69.8 km/h	61.0	0.6	54.0	1015.9
Nov 6, 07:00 p.m. HST	24.0	40.7	71.6 km/h	59.1	0.7	59.0	1016.2
Nov 6, 08:00 p.m. HST	23.8	40.0	72.4 km/h	59.5	0.6	63.0	1016.7
Nov 6, 09:00 p.m. HST	23.8	39.2	71.3 km/h	57.8	0.6	63.0	1017.1
Nov 6, 10:00 p.m. HST	23.7	38.9	71.3 km/h	58.8	0.8	62.0	1017.2
Nov 6, 11:00 p.m. HST	23.5	39.6	72.7 km/h	59.2	1.0	63.0	1017.1
Nov 7, 12:00 a.m. HST	23.3	38.9	71.6 km/h	59.6	0.9	70.0	1016.9
Nov 7, 01:00 a.m. HST	22.9	38.9	69.5 km/h	57.4	0.9	79.0	1016.7
Nov 7, 02:00 a.m. HST	23.0	37.4	65.9 km/h	56.7	0.4	86.0	1016.2
Nov 7, 03:00 a.m. HST	23.1	38.5	70.9 km/h	61.7	1.3	90.0	1015.6
Nov 7, 04:00 a.m. HST	23.1	36.4	71.6 km/h	63.6	1.2	93.0	1015.5
Nov 7, 05:00 a.m. HST	23.1	38.2	76.7 km/h	61.5	0.9	94.0	1015.5
Nov 7, 06:00 a.m. HST	22.9	38.2	75.6 km/h	63.3	1.4	94.0	1015.9
Nov 7, 07:00 a.m. HST	23.2	39.2	79.2 km/h	63.3	0.8	93.0	1016.3
Nov 7, 08:00 a.m. HST	23.5	41.4	79.9 km/h	64.1	0.7	88.0	1016.8
Nov 7, 09:00 a.m. HST	23.8	42.1	81.0 km/h	65.6	0.5	76.0	1017.1
Nov 7, 10:00 a.m. HST	24.2	40.3	84.6 km/h	65.2	0.6	61.0	1017.3
Nov 7, 11:00 a.m. HST	24.7	42.1	85.3 km/h	66.1	0.5	47.0	1016.8
Nov 7, 12:00 p.m. HST	25.1	40.3	80.3 km/h	68.8	0.6	36.0	1016.1
Nov 7, 01:00 p.m. HST	24.9	37.8	80.3 km/h	70.8	0.7	28.0	1015.3
Nov 7, 02:00 p.m. HST	25.0	37.1	78.1 km/h	68.3	0.4	22.0	1014.7
Nov 7, 03:00 p.m. HST	24.8	37.4	77.0 km/h	67.8	0.3	21.0	1014.7
Nov 7, 04:00 p.m. HST	24.7	37.1	75.6 km/h	66.8	0.2	23.0	1014.9
Nov 7, 05:00 p.m. HST	24.3	36.0	73.1 km/h	65.7	0.2	25.0	1015.2
Nov 7, 06:00 p.m. HST	23.8	34.9	70.6 km/h	63.1	0.3	26.0	1015.5
Nov 7, 07:00 p.m. HST	23.7	36.0	72.7 km/h	64.1	0.2	26.0	1015.9
Nov 7, 08:00 p.m. HST	24.0	37.1	74.9 km/h	66.9	0.0	24.0	1016.3
Nov 7, 09:00 p.m. HST	24.3	38.9	77.4 km/h	68.8	0.0	19.0	1016.7
Nov 7, 10:00 p.m. HST	24.4	40.3	80.6 km/h	68.1	0.0	13.0	1016.8
Nov 7, 11:00 p.m. HST	24.3	39.6	79.6 km/h	72.4	0.0	8.0	1016.6

Complete hourly marine forecast

Regional ocean model; local conditions can differ
Time	Wave m	Wave period s	Wave from °	Swell m	Swell period s	Water °C	Current km/h	Current toward °
Nov 6, 12:00 a.m. HST	Unavailable	Unavailable	Unavailable	Unavailable	Unavailable	Unavailable	0.7	0.0
Nov 6, 01:00 a.m. HST	Unavailable	Unavailable	Unavailable	Unavailable	Unavailable	Unavailable	0.7	0.0
Nov 6, 02:00 a.m. HST	1.9	8.6	58.0	Unavailable	Unavailable	27.0	0.7	14.0
Nov 6, 03:00 a.m. HST	1.9	8.6	58.0	Unavailable	Unavailable	27.0	1.0	31.0
Nov 6, 04:00 a.m. HST	1.9	8.6	59.0	Unavailable	Unavailable	27.0	1.3	34.0
Nov 6, 05:00 a.m. HST	1.9	8.5	59.0	Unavailable	Unavailable	27.0	1.5	36.0
Nov 6, 06:00 a.m. HST	1.9	8.4	59.0	Unavailable	Unavailable	27.0	1.8	37.0
Nov 6, 07:00 a.m. HST	1.9	8.3	60.0	Unavailable	Unavailable	27.0	1.5	36.0
Nov 6, 08:00 a.m. HST	1.9	8.2	60.0	Unavailable	Unavailable	27.0	1.3	34.0
Nov 6, 09:00 a.m. HST	1.9	8.2	61.0	Unavailable	Unavailable	27.0	0.8	27.0
Nov 6, 10:00 a.m. HST	2.0	8.1	61.0	Unavailable	Unavailable	27.0	0.4	0.0
Nov 6, 11:00 a.m. HST	2.0	8.1	62.0	Unavailable	Unavailable	27.1	0.4	270.0
Nov 6, 12:00 p.m. HST	1.9	8.0	62.0	Unavailable	Unavailable	27.1	0.7	256.0
Nov 6, 01:00 p.m. HST	1.9	8.0	63.0	Unavailable	Unavailable	27.1	0.9	259.0
Nov 6, 02:00 p.m. HST	1.9	8.0	63.0	Unavailable	Unavailable	27.1	0.7	256.0
Nov 6, 03:00 p.m. HST	1.9	8.0	63.0	Unavailable	Unavailable	27.1	0.4	270.0
Nov 6, 04:00 p.m. HST	1.9	7.9	64.0	Unavailable	Unavailable	27.1	0.2	0.0
Nov 6, 05:00 p.m. HST	1.9	7.9	64.0	Unavailable	Unavailable	27.1	0.5	45.0
Nov 6, 06:00 p.m. HST	1.9	7.8	65.0	Unavailable	Unavailable	27.1	0.8	45.0
Nov 6, 07:00 p.m. HST	1.9	7.8	66.0	Unavailable	Unavailable	27.0	0.9	53.0
Nov 6, 08:00 p.m. HST	1.9	7.8	67.0	Unavailable	Unavailable	27.0	0.8	63.0
Nov 6, 09:00 p.m. HST	1.9	7.8	67.0	Unavailable	Unavailable	27.0	0.4	63.0
Nov 6, 10:00 p.m. HST	1.9	7.7	67.0	Unavailable	Unavailable	27.0	0.0	90.0
Nov 6, 11:00 p.m. HST	1.9	7.7	67.0	Unavailable	Unavailable	26.9	0.5	225.0
Nov 7, 12:00 a.m. HST	1.9	7.6	67.0	Unavailable	Unavailable	26.9	0.8	243.0
Nov 7, 01:00 a.m. HST	1.9	7.6	66.0	Unavailable	Unavailable	26.9	1.0	248.0
Nov 7, 02:00 a.m. HST	1.9	7.5	66.0	Unavailable	Unavailable	26.9	1.0	248.0
Nov 7, 03:00 a.m. HST	1.9	7.5	66.0	Unavailable	Unavailable	26.9	0.7	256.0
Nov 7, 04:00 a.m. HST	1.9	7.4	65.0	Unavailable	Unavailable	26.9	0.4	297.0
Nov 7, 05:00 a.m. HST	1.9	7.3	65.0	Unavailable	Unavailable	26.9	0.5	0.0
Nov 7, 06:00 a.m. HST	1.9	7.3	65.0	Unavailable	Unavailable	26.9	0.7	14.0
Nov 7, 07:00 a.m. HST	2.0	7.3	65.0	Unavailable	Unavailable	26.9	0.8	27.0
Nov 7, 08:00 a.m. HST	2.0	7.3	65.0	Unavailable	Unavailable	26.9	0.7	14.0
Nov 7, 09:00 a.m. HST	2.0	7.3	66.0	Unavailable	Unavailable	26.9	0.4	0.0
Nov 7, 10:00 a.m. HST	2.0	7.3	66.0	Unavailable	Unavailable	26.9	0.4	297.0
Nov 7, 11:00 a.m. HST	2.0	7.3	67.0	Unavailable	Unavailable	26.9	0.7	256.0
Nov 7, 12:00 p.m. HST	1.9	7.3	68.0	Unavailable	Unavailable	26.9	1.1	252.0
Nov 7, 01:00 p.m. HST	1.9	7.3	68.0	Unavailable	Unavailable	27.0	1.3	254.0
Nov 7, 02:00 p.m. HST	1.9	7.3	69.0	Unavailable	Unavailable	27.0	1.3	254.0
Nov 7, 03:00 p.m. HST	1.9	7.3	69.0	Unavailable	Unavailable	27.0	1.1	261.0
Nov 7, 04:00 p.m. HST	1.8	7.4	69.0	Unavailable	Unavailable	27.0	0.7	284.0
Nov 7, 05:00 p.m. HST	1.8	7.5	69.0	Unavailable	Unavailable	27.0	0.6	342.0
Nov 7, 06:00 p.m. HST	1.8	7.5	68.0	Unavailable	Unavailable	27.0	0.9	11.0
Nov 7, 07:00 p.m. HST	1.8	7.5	67.0	Unavailable	Unavailable	27.0	1.3	16.0
Nov 7, 08:00 p.m. HST	1.8	7.5	66.0	Unavailable	Unavailable	27.0	1.4	23.0
Nov 7, 09:00 p.m. HST	1.8	7.6	65.0	Unavailable	Unavailable	27.0	1.4	23.0
Nov 7, 10:00 p.m. HST	1.8	7.7	65.0	Unavailable	Unavailable	27.0	1.1	18.0
Nov 7, 11:00 p.m. HST	1.8	7.7	64.0	Unavailable	Unavailable	27.0	0.7	14.0

Shoreline adventures 2026-11-06

Coverage: available. Source: provider: NOAA; stationId: 1613155; locationName: Pukoo Harbor; distanceKm: 6.731723835691865; datum: MLLW. Times use Pacific/Honolulu. These are forecast assessments, not beach access, harvesting permission or safe navigation boundaries.

Daylight shoreline outings

Weather assessments with separate tide coverage
Start	End	Score /10	Assessment	Wind min kn	Wind max kn	Gust	Rain mm	Tide coverage	Reasons
Nov 6, 06:33 a.m. HST	Nov 6, 09:00 a.m. HST	2.0	Poor	18.7	21.0	37.7 kn	0.3	complete	Strong wind or gusts
Nov 6, 12:00 p.m. HST	Nov 6, 05:50 p.m. HST	1.0	Poor	21.8	22.7	43.7 kn	0.8	complete	Rain reduces outing comfort; Very strong wind or gusts

Shoreline tide predictions

Source high and low predictions; heights keep the source datum
Time	Tide	Height m
Nov 6, 01:22 a.m. HST	high	0.6
Nov 6, 07:52 a.m. HST	low	0.2
Nov 6, 12:49 p.m. HST	high	0.4
Nov 6, 07:07 p.m. HST	low	-0.0

Relative low-tide crossing windows

These geometric crossings of 70% of the source high tide are separate from the daylight outing assessments above.

Predicted relative water-level crossings
Start	End	Prediction coverage	Daylight coverage	Weather coverage
Nov 6, 04:12 a.m. HST	Nov 6, 11:10 p.m. HST	complete	available	complete

Shoreline adventures 2026-11-07

Daylight shoreline outings

Weather assessments with separate tide coverage
Start	End	Score /10	Assessment	Wind min kn	Wind max kn	Gust	Rain mm	Tide coverage	Reasons
Nov 7, 06:34 a.m. HST	Nov 7, 12:00 p.m. HST	1.0	Poor	20.6	22.7	46.1 kn	1.4	complete	Very strong wind or gusts; Heavy rain with strong wind; Rain reduces outing comfort
Nov 7, 03:00 p.m. HST	Nov 7, 05:49 p.m. HST	1.0	Poor	19.4	20.2	41.6 kn	0.3	complete	Very strong wind or gusts; Strong wind or gusts

Shoreline tide predictions

Source high and low predictions; heights keep the source datum
Time	Tide	Height m
Nov 7, 01:57 a.m. HST	high	0.7
Nov 7, 08:44 a.m. HST	low	0.1
Nov 7, 01:24 p.m. HST	high	0.4
Nov 7, 07:29 p.m. HST	low	-0.0

Relative low-tide crossing windows

These geometric crossings of 70% of the source high tide are separate from the daylight outing assessments above.

Predicted relative water-level crossings
Start	End	Prediction coverage	Daylight coverage	Weather coverage
Nov 7, 04:50 a.m. HST	Nov 7, 11:46 p.m. HST	complete	available	complete