- Forecast
- Maps
- Live
- Weather State
- Spot Information
Surf Forecasts:
Tunnels surfForecast / HAW – Kaua'i / USA
16 Day Weather and Surf, issued 1 am Wednesday 20 May 2026 HSTForecast 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
25.0° C
(Which is normal for this time of year)Best Forecast Surf Conditions for Tunnels this week:
The most powerful waves expected at Tunnels in the next 16 days are 2.5m 9s and forecast to arrive on Thursday (May 21) at 11PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 8s period and expected on Wednesday (May 20) at 8PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 11PM (Thu 21st May) | 8ft (2.5m) 9s |
Table - best surf conditions forecast for Tunnels over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 9mm), mostly falling on Wed afternoon. Warm (max 25°C on Wed morning, min 22°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummaryModerate rain (total 15mm), heaviest on Mon night. Warm (max 25°C on Sun afternoon, min 22°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Wednesday 20 | Thursday 21 | Friday 22 | Saturday 23 | Sunday 24 | Monday 25 | Tuesday 26 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
E 8 | E 8 | ENE 9 | E 8 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 8 | ENE 9 | ENE 9 | ENE 9 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | |
309 | 428 | 547 | 647 | 676 | 898 | 761 | 705 | 673 | 715 | 803 | 742 | 587 | 758 | 560 | 597 | 534 | 402 | 318 | 292 | 302 | |
Wind (km/h) | |||||||||||||||||||||
cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | |
High Tide | 6:32PM0.67m | 6:37AM0.13m | 7:28PM0.62m | 8:25AM0.17m | 8:22PM0.55m | 10:03AM0.26m | 9:14PM0.48m | 11:13AM0.35m | 10:02PM0.42m | 12:03PM0.45m | 10:45PM0.35m | 12:44PM0.53m | 11:25PM0.30m | ||||||||
Low Tide | 9:55AM-0.05m | 2:25AM0.06m | 10:54AM0.02m | 3:09AM0.04m | 12:15PM0.09m | 3:43AM0.02m | 2:08PM0.14m | 4:11AM0.01m | 3:57PM0.17m | 4:37AM-0.01m | 5:26PM0.18m | 5:00AM-0.03m | 6:41PM0.16m | ||||||||
 |  |  | | | | | | | | | | | |  | | | | | | | |
 | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — | 5:54 | — | — | 5:54 | — | — | 5:54 | — | — | 5:54 | — | — |
 | — | 7:13 | — | — | 7:13 | — | — | 7:13 | — | — | 7:14 | — | — | 7:14 | — | — | 7:15 | — | — | 7:15 | — |
— | 1 | 2 | 1 | 1 | 1 | — | 1 | 2 | 1 | 1 | 1 | 2 | 1 | — | 2 | 2 | 5 | 1 | 2 | — | |
Temp °C | 25 | 25 | 24 | 24 | 25 | 23 | 24 | 24 | 23 | 24 | 23 | 23 | 23 | 25 | 24 | 24 | 24 | 23 | 24 | 24 | 23 |
25 | 24 | 23 | 22 | 23 | 20 | 21 | 21 | 21 | 22 | 20 | 21 | 21 | 23 | 23 | 22 | 22 | 22 | 23 | 23 | 21 | |
Swell 1 Height (m) Direction Period (s) | NNW 10 | NNW 11 | NNW 10 | NNW 10 | NW 10 | NW 10 | NW 11 | NNW 11 | NW 10 | NNW 15 | NW 14 | NW 13 | NW 12 | ENE 8 | ENE 8 | NW 11 | NW 10 | ENE 8 | ENE 8 | ENE 8 | NW 14 |
 kJ | 94 | 65 | 34 | 19 | 24 | 25 | 55 | 78 | 51 | 158 | 211 | 172 | 147 | 612 | 560 | 57 | 54 | 402 | 318 | 292 | 265 |
Swell 2 Height (m) Direction Period (s) | SSW 16 | NW 9 | WNW 9 | WNW 8 | SE 13 | SSW 15 | SE 12 | SSE 12 | NNW 18 | NW 10 | NNW 10 | NW 10 | SE 11 | NW 12 | NW 11 | S 14 | S 14 | NW 10 | NW 10 | NW 16 | NNW 9 |
| kJ | 24 | 13 | 7 | 7 | 7 | 21 | 6 | 14 | 31 | 49 | 38 | 24 | 4 | 140 | 97 | 4 | 4 | 25 | 24 | 119 | 8 |
Swell 3 Height (m) Direction Period (s) | SE 9 | SSW 14 | SW 13 | SE 14 | SW 14 | SE 13 | S 15 | S 14 | SE 12 | SE 12 | SE 12 | S 15 | S 14 | SE 9 | SE 9 | S 11 | S 12 | SE 10 | NNW 17 | NW 9 | S 12 |
| kJ | 3 | 19 | 7 | 7 | 8 | 7 | 4 | 4 | 6 | 5 | 5 | 4 | 4 | 3 | 3 | 2 | 3 | 4 | 30 | 14 | 3 |
Wind waves Height (m) Direction Period (s) | E 8 | E 8 | ENE 9 | E 8 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 8 | ENE 9 | ENE 9 | ENE 9 | ENE 8 | — | ENE 8 | ENE 8 | — | — | — | ENE 8 |
| kJ | 309 | 428 | 547 | 647 | 676 | 898 | 761 | 705 | 673 | 715 | 803 | 742 | 587 | 758 | — | 597 | 534 | — | — | — | 302 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 25 | 25 | 332 | 32 | 335 | 34 | 25 | 32 | 32 | 25 | 363 | 32 | 25 | 332 | 25 | 32 | 32 | 32 | 25 | 159 | 32 |
Best forecast wave conditions in Kaua'i | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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 Tunnels 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.
Information about the Tunnels Surf forecast
The above surf forecast table for Tunnels provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Tunnels can be found by selecting the local surf guide option on the grey menu. Our Tunnels surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Tunnels) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Tunnels may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Are you planning a vacation in Kaua'i? If you are looking for accommodation near Tunnels, camping, hotels and condos and appartments in Kaua'i, consider staying in Lihue - Kauai which is 36 km (22 miles) away. Alternatively, find information about places to stay and car hire in Nawiliwili which is 36 km (22 miles) away
Nearest