Chuns Reef Surf Forecast

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

USA (1297 breaks) / Lat Long: (21.62° N 158.08° W)

Surf Forecasts:

Chuns Reef surfForecast / HAW – Oahu / USA

48hr Weather and Surf, issued 7 am Friday 17 Oct 2025 HST

Forecast update in hr min s Forecast update imminent

Chuns Reef surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.

Today's Chuns Reef sea temperature is 27.1° C
(Which is normal for this time of year)

How big are the waves at Chuns Reef today?

The current surf forecast for Chuns Reef at 10AM is: 1.6m 16s primary swell from a Northwest direction and 0.4m 11s secondary swell from a Northeast direction, 1.9m 8s secondary swell from a East-northeast direction (forecast issued at 07:00am October 17). The wind direction is predicted to be cross-offshore.

Time (HST) & Date	Wave Height	Wave Period
Morning (17 Oct)	3.5ft (1.1m)	16s
Afternoon (17 Oct)	5ft (1.5m)	14s
Evening (17 Oct)	4.5ft (1.4m)	14s

Table - waves today at Chuns Reef. (Swell directed towards the surf break)

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Friday 17							Saturday 18								Sunday 19								Mon 20
	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)	3	3	3	2	3	3	1	1	1	1	1	1	1	2	1	1	2	2	2	2	2	2	2	2
Swell Height Map See all maps
Wave Height (m) & direction (?)	NW	NNW	NW	NW	NNW	NW	NW	NNW	NW	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE
Period(s) (?)	13	16	16	15	14	14	13	13	13	7	7	7	7	8	7	8	8	8	8	8	8	8	8	8
Wave Graph (?)
kJ (?)	560	643	1224	1045	934	799	700	563	486	369	417	390	400	411	440	411	373	383	383	373	345	310	319	277
Wind (km/h)	E	E	E	ENE	E	E	ENE	ENE	ENE	E	ENE	ENE	ENE	ENE	E	ENE	ENE	E	ENE	ENE	ENE	ENE	ENE	ENE
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off
High Tide / height (m)				12:32PM 0.44				1:23AM 0.38				1:05PM 0.41				1:55AM 0.43				1:34PM 0.37
Low Tide / height (m)		5:13AM 0.12				6:04PM 0.04				6:07AM 0.12				6:23PM 0.03				6:55AM 0.12				6:41PM 0.02

	Friday 17							Saturday 18								Sunday 19								Mon 20
Sunrise	-	6:28	-	-	-	-	-	-	-	6:28	-	-	-	-	-	-	-	6:28	-	-	-	-	-	-
Sunset	-	-	-	-	6:06	-	-	-	-	-	-	-	6:05	-	-	-	-	-	-	-	6:04	-	-	-

Rain (mm)	2	1	-	-	-	-	-	-	-	-	-	-	-	-	1	1	-	-	-	-	-	-	-	-
Temp. °C	24	25	26	26	26	25	25	25	25	25	26	26	26	25	25	25	25	25	26	26	26	25	25	25
Feels °C (?)	25	24	25	25	25	25	25	24	24	24	24	25	25	24	24	24	24	24	25	25	25	25	25	25

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 Chuns Reef (light winds from the ENE at Wheeler Air Force Base/oahu Airport 19 km from Chuns Reef). 1.8m 8s swell from the ENE with a 1.1m 13s groundswell from the NW and a 0.6m 17s long period groundswell from the NNW as well as a 0.4m 12s groundswell from the NE. 4 swells combining so expect closeout sets.
2 hours 14 minutes ago Chuns Reef

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19 km away, 2 h 14 min ago

6 km/h

ENE

0.0

27.1

Air / Water (°C)

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