Chinamans Hat/Mokolii Surf Forecast

/ HAW – Oahu (122 breaks) / Hawaii (267 breaks) /

USA (1297 breaks) / Lat Long: (21.51° N 157.83° W)

Surf Forecasts:

Chinamans Hat/Mokolii surfForecast / HAW – Oahu / USA

48hr Weather and Surf, issued 7 am Monday 08 Sep 2025 HST

Forecast update in hr min s Forecast update imminent

Chinamans Hat/Mokolii surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.

Today's Chinamans Hat/Mokolii sea temperature is 26.5° C
(Which is normal for this time of year)

How big are the waves at Chinamans Hat/Mokolii today?

The current surf forecast for Chinamans Hat/Mokolii at 2PM is: 0.9m 13s primary swell from a East-southeast direction and 0.4m 9s secondary swell from a North-northwest direction, 0.6m 5s secondary swell from a East direction (forecast issued at 07:00am September 08). The wind direction is predicted to be cross-onshore.

Time (HST) & Date	Wave Height	Wave Period
Morning (08 Sep)	3ft (0.9m)	14s
Afternoon (08 Sep)	3ft (0.9m)	13s
Evening (08 Sep)	3.5ft (1.1m)	13s

Table - waves today at Chinamans Hat/Mokolii. (Swell directed towards the surf break)

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Monday 08							Tuesday 09								Wednesday 10								Thu 11
	5 AM	8 AM	11 AM	2 PM	5 PM	8 PM	11 PM	2 AM	5 AM	8 AM	11 AM	2 PM	5 PM	8 PM	11 PM	2 AM	5 AM	8 AM	11 AM	2 PM	5 PM	8 PM	11 PM	2 AM
Rating (10 max)	1	0	1	0	0	0	1	1	0	1	2	2	3	3	3	3	2	0	1	1	0	0	0	0
Swell Height Map See all maps
Wave Height (m) & direction (?)	ESE	ESE	ESE	ESE	ESE	E	E	E	E	E	E	E	ENE	ENE	ENE	ENE	E	ENE	ENE	ENE	E	E	E	E
Period(s) (?)	13	14	13	13	13	13	12	13	12	12	12	11	11	11	10	10	9	9	9	8	8	8	8	8
Wave Graph (?)
Energy (?)	300	384	279	334	328	442	512	563	594	1091	1284	1281	1377	1232	863	698	552	469	946	474	479	367	316	274
Wind (km/h)	ESE	ESE	E	ENE	ENE	ENE	ENE	E	E	ENE	NE	NNE	N	N	E	SE	E	ESE	ESE	ESE	E	ESE	E	E
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross	cross	cross	cross- on	cross- on	cross- on	cross- on	cross- on	cross- on	cross- on	cross- on	on	cross- on	cross- on	glass	cross- off	cross	cross	cross	cross	cross	cross	cross	cross
High Tide / height (m)	2:19AM 0.65				2:39PM 0.80				3:11AM 0.69				2:58PM 0.73				4:06AM 0.73				3:14PM 0.66
Low Tide / height (m)			8:33AM 0.08				9:22PM 0.07				9:18AM 0.17				9:50PM 0.02				10:09AM 0.27				10:22PM -0.00

	Monday 08							Tuesday 09								Wednesday 10								Thu 11
Sunrise	-	6:16	-	-	-	-	-	-	-	6:16	-	-	-	-	-	-	-	6:16	-	-	-	-	-	-
Sunset	-	-	-	-	6:40	-	-	-	-	-	-	-	6:39	-	-	-	-	-	-	-	6:38	-	-	-

Rain (mm)	-	-	-	-	-	-	-	-	1	1	-	-	-	-	-	-	-	-	-	1	1	1	-	-
Temp. °C	25	25	26	26	26	25	25	25	25	26	27	27	26	26	26	25	25	26	27	26	26	26	25	25
Feels °C (?)	26	25	27	27	27	26	27	28	27	28	29	29	29	28	30	28	29	28	28	28	28	27	26	26

Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)

Recent Eyeball Surf Reports for HAW - Oahu

Wind Update Continuing clean conditions at Chinamans Hat/Mokolii (calm at BUOY-HRRH1 9 km from Chinamans Hat/Mokolii). 0.7m 4s local chop from the E with a 0.6m 14s groundswell from the ESE and a 0.4m 9s swell from the NNW. 3 swells combining to make bigger set waves.
2 hours 2 minutes ago Chinamans Hat/Mokolii

Expand

View all

2 h 2 min ago

5 km/h

ENE

Clean

Please reload the page to see if there are any updates.

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Chinamans Hat/Mokolii surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.