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 pm Wednesday 20 Aug 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 27.4° C
(Which is slightly warmer than usual)

How big are the waves at Tunnels today?

The current surf forecast for Tunnels at 10PM is: 1.0m 6s primary swell from a East direction and 0.2m 10s secondary swell from a North direction (forecast issued at 07:00pm August 20). An open ocean swell of 0.2m 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 (20 Aug)	-	-
Afternoon (20 Aug)	3.5ft (1.0m)	6s
Evening (20 Aug)	2.5ft (0.8m)	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

	Wednesday 20			Thursday 21								Friday 22								Saturday 23
	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	5 AM	8 AM	11 AM	2 PM
Rating (10 max)	0	0	0	0	0	0	0	0	0	0	0	1	0	1	0	0	0	0	0	1	1	1	1	0
Swell Height Map See all maps
Wave Height (m) & direction (?)	E	E	E	E	E	E	E	E	E	E	E	E	E	E	E	E	E	E	E	E	E	E	E	E
Period(s) (?)	7	7	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	7
Wave Graph (?)
Energy (?)	94	77	92	87	99	118	114	114	94	93	91	90	89	89	97	72	74	63	61	72	82	198	100	101
Wind (km/h)	E	E	E	ESE	ESE	E	E	E	E	E	ESE	ESE	ESE	ESE	E	E	ENE	E	ESE	ESE	SE	ESE	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- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off
High Tide / height (m)				1:13AM 0.29					2:12PM 0.76			1:56AM 0.34					2:44PM 0.73				2:36AM 0.38
Low Tide / height (m)			8:19PM 0.12			6:22AM -0.02					8:38PM 0.12			7:06AM -0.01					8:57PM 0.11			7:47AM 0.02

	Wednesday 20			Thursday 21								Friday 22								Saturday 23
Sunrise	-	-	-	-	-	6:16	-	-	-	-	-	-	-	6:16	-	-	-	-	-	-	-	6:18	-	-
Sunset	7:05	-	-	-	-	-	-	-	7:04	-	-	-	-	-	-	-	7:04	-	-	-	-	-	-	-

Rain (mm)	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Temp. °C	27	26	25	25	25	25	27	27	27	25	25	24	24	25	27	27	27	25	25	24	24	25	27	27
Feels °C (?)	27	27	25	26	26	25	26	26	27	26	26	25	25	26	27	26	27	25	26	25	25	27	28	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). A 1.2m windswell from the ENE
53 minutes ago Tunnels

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26 km away, 53 min ago

0 km/h

0.0

27.4

Air / Water (°C)

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