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Surf Forecasts:
Tunnels surfForecast / HAW – Kaua'i / USA
48hr Weather and Surf, issued 7 am Thursday 21 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
25.1° C
(Which is normal for this time of year)How big are the waves at Tunnels today?
The current surf forecast for Tunnels at 3PM is: 2.2m 9s primary swell from a East-northeast direction and 0.4m 10s secondary swell from a Northwest direction (forecast issued at 07:00am May 21). An open ocean swell of 0.1m 13s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 May) | 7.5ft (2.3m) | 8s |
| Afternoon (21 May) | 7ft (2.2m) | 9s |
| Evening (21 May) | 8ft (2.4m) | 9s |
Table - waves today at Tunnels. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 10mm), heaviest on Thu morning. Warm (max 24°C on Thu morning, min 22°C on Thu night). Mainly fresh winds. | ||||||||||||||||||||||||
Thursday 21 | Friday 22 | Saturday 23 | Sun 24 | |||||||||||||||||||||
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 | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
ENE 8 | ENE 8 | ENE 8 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | |
602 | 721 | 721 | 676 | 676 | 754 | 858 | 858 | 1081 | 828 | 809 | 744 | 767 | 714 | 732 | 732 | 739 | 739 | 748 | 921 | 867 | 803 | 803 | 785 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross | cross | cross-off | cross-off | |
High Tide | 6:37AM0.13m | 7:28PM0.62m | 8:25AM0.17m | 8:22PM0.55m | 10:03AM0.26m | 9:14PM0.48m | ||||||||||||||||||
Low Tide | 2:25AM0.06m | 10:54AM0.02m | 3:09AM0.04m | 12:15PM0.09m | 3:43AM0.02m | 2:08PM0.14m | ||||||||||||||||||
 |  |  | | |  | | | | | |  | | | | | | | | | | | | | |
 | 5:56 | — | — | — | — | — | — | — | 5:56 | — | — | — | — | — | — | — | 5:54 | — | — | — | — | — | — | 5:54 |
 | — | — | — | — | 7:13 | — | — | — | — | — | — | — | 7:13 | — | — | — | — | — | — | — | 7:14 | — | — | 7:14 |
1 | 1 | — | — | 1 | — | — | — | — | — | — | 1 | 1 | — | 1 | 1 | 1 | — | 1 | — | — | — | 1 | — | |
Temp °C | 23 | 23 | 24 | 24 | 23 | 23 | 23 | 23 | 22 | 23 | 24 | 24 | 23 | 23 | 22 | 22 | 22 | 23 | 23 | 23 | 24 | 23 | 22 | 22 |
22 | 21 | 22 | 21 | 21 | 21 | 20 | 21 | 20 | 20 | 21 | 21 | 21 | 21 | 20 | 20 | 20 | 20 | 20 | 20 | 21 | 20 | 19 | 20 | |
Swell 1 Height (m) Direction Period (s) | NNW 10 | NNW 10 | NNW 10 | NW 10 | NNW 10 | NW 10 | NW 10 | NW 10 | ENE 9 | NW 10 | NW 11 | NW 11 | NW 11 | NNW 11 | NW 10 | NW 10 | NW 10 | NW 10 | NNW 16 | NNW 15 | NW 14 | NW 14 | NW 13 | ENE 9 |
 kJ | 33 | 19 | 19 | 24 | 18 | 25 | 25 | 25 | 898 | 51 | 55 | 56 | 57 | 76 | 54 | 51 | 50 | 50 | 160 | 188 | 211 | 191 | 178 | 785 |
Swell 2 Height (m) Direction Period (s) | WNW 8 | NW 8 | WNW 8 | SE 13 | SE 13 | SE 13 | SSW 15 | SSW 15 | NNW 10 | S 15 | SSE 12 | SSE 12 | SSE 12 | SSE 12 | SE 12 | NNW 18 | NNW 17 | NNW 16 | NW 10 | NNW 10 | NW 10 | NW 10 | NW 10 | NW 13 |
| kJ | 7 | 3 | 7 | 7 | 7 | 7 | 21 | 21 | 38 | 4 | 14 | 14 | 14 | 14 | 6 | 31 | 57 | 102 | 49 | 39 | 25 | 24 | 24 | 172 |
Swell 3 Height (m) Direction Period (s) | SW 13 | SE 14 | SE 14 | SW 14 | NW 8 | S 15 | SE 13 | SE 13 | SSW 15 | SE 12 | S 15 | S 14 | S 14 | S 14 | NW 19 | SE 12 | SE 12 | SE 11 | SE 10 | SE 12 | SE 12 | S 15 | S 15 | NW 10 |
| kJ | 7 | 8 | 7 | 8 | 3 | 4 | 7 | 7 | 21 | 39 | 4 | 4 | 4 | 4 | 14 | 6 | 5 | 5 | 4 | 5 | 5 | 4 | 4 | 24 |
Wind waves Height (m) Direction Period (s) | ENE 8 | ENE 8 | ENE 8 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 9 | ENE 9 | ENE 9 | — |
| kJ | 602 | 721 | 721 | 676 | 676 | 754 | 858 | 858 | 1081 | 828 | 809 | 744 | 767 | 714 | 732 | 732 | 739 | 739 | 748 | 921 | 867 | 803 | 803 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 32 | 32 | 32 | 32 | 336 | 463 | 455 | 34 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 |
Best forecast wave conditions in Kaua'i | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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