Tunnels Surf Forecast

/ HAW – Kaua'i (25 breaks) / Hawaii (267 breaks) /

USA (1297 breaks)

Surf Forecasts:

Tunnels surfForecast / HAW – Kaua'i / USA

48hr Weather and Surf, issued 7 am Thursday 18 Sep 2025 HST

Forecast update in hr min s Forecast update imminent

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

Today's Tunnels sea temperature is 27.7° C
(Which is slightly warmer than usual)

How big are the waves at Tunnels today?

The current surf forecast for Tunnels at 8AM is: 1.3m 7s primary swell from a East direction and 0.7m 8s secondary swell from a North direction (forecast issued at 07:00am September 18). An open ocean swell of 0.3m 9s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (HST) & Date	Wave Height	Wave Period
Morning (18 Sep)	4.5ft (1.3m)	7s
Afternoon (18 Sep)	4.5ft (1.3m)	7s
Evening (18 Sep)	4ft (1.2m)	7s

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

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Thursday 18							Friday 19								Saturday 20								Sun 21
	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)	0	1	1	1	1	1	1	1	1	0	0	0	0	0	0	0	0	1	1	0	1	1	1	1
Swell Height Map See all maps
Wave Height (m) & direction (?)	E	E	E	E	E	E	E	E	E	E	E	E	ENE	ENE	ENE	NE	NE	ENE	ENE	ENE	ENE	ENE	ENE	ENE
Period(s) (?)	6	7	7	7	7	7	7	7	7	6	6	6	6	7	6	7	6	7	7	7	7	7	7	7
Wave Graph (?)
kJ (?)	132	149	159	159	131	134	128	145	103	112	94	76	93	107	130	116	172	218	243	229	209	203	249	242
Wind (km/h)	ESE	ESE	E	E	E	E	E	E	E	E	ENE	ENE	ENE	E	ENE	E	ENE	E	E	ENE	E	E	E	E
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	cross	cross	cross- off	cross- off	cross- off	cross	cross- off	cross- off	cross	cross- off	cross- off	cross- off	cross- off
High Tide / height (m)				1:07PM 0.69				1:15AM 0.40				1:38PM 0.66				1:52AM 0.46					2:05PM 0.62
Low Tide / height (m)		5:35AM 0.05				7:25PM 0.11				6:23AM 0.06				7:41PM 0.09				7:06AM 0.07				7:56PM 0.08

	Thursday 18							Friday 19								Saturday 20								Sun 21
Sunrise	-	6:24	-	-	-	-	-	-	-	6:26	-	-	-	-	-	-	-	6:26	-	-	-	-	-	-
Sunset	-	-	-	-	6:37	-	-	-	-	-	-	-	6:37	-	-	-	-	-	-	-	6:36	-	-	-

Rain (mm)	-	-	-	-	-	1	1	1	1	-	1	1	-	1	1	1	1	-	-	-	-	-	-	-
Temp. °C	25	26	27	28	27	25	26	25	25	25	26	27	27	26	26	25	25	25	27	27	26	25	25	25
Feels °C (?)	25	25	26	28	27	25	27	26	26	26	26	27	28	27	27	26	25	25	27	27	25	26	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 - Kaua'i

Wind Update Continuing clean conditions at Tunnels (calm at Wailua Homesteads wx 26 km from Tunnels). 0.7m 7s swell from the N to make surfable waves.
1 hour 10 minutes ago Tunnels

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26 km away, 1 h 10 min ago

3 km/h

ESE

0.0

27.7

Air / Water (°C)

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