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Tunnels surfForecast / HAW – Kaua'i / USA
48hr Weather and Surf, issued 1 pm Monday 18 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
24.7° C
(Which is normal for this time of year)How big are the waves at Tunnels today?
The current surf forecast for Tunnels at 8PM is: 1.7m 8s primary swell from a East direction and 0.5m 11s secondary swell from a Northwest direction (forecast issued at 01:00pm May 18). The wind direction is predicted to be cross-offshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 May) | 6.5ft (2.0m) | 8s |
| Afternoon (18 May) | 5.5ft (1.7m) | 8s |
| Evening (18 May) | 6ft (1.9m) | 8s |
Table - waves today at Tunnels. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 7mm), mostly falling on Mon afternoon. Warm (max 25°C on Mon afternoon, min 22°C on Wed night). Wind will be generally light. | ||||||||||||||||||||||||
Mon 18 | Tuesday 19 | Wednesday 20 | Thu 21 | |||||||||||||||||||||
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 | 5 AM | 8 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | ENE 8 | ENE 8 | ENE 8 | E 8 | E 8 | E 8 | ENE 8 | ENE 8 | E 8 | ENE 8 | |
383 | 383 | 383 | 374 | 333 | 294 | 251 | 217 | 217 | 217 | 212 | 217 | 217 | 223 | 123 | 270 | 270 | 349 | 393 | 450 | 470 | 522 | 682 | 645 | |
Wind (km/h) | ||||||||||||||||||||||||
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 | 4:45PM0.76m | 3:51AM0.13m | 5:37PM0.73m | 5:03AM0.12m | 6:32PM0.67m | 6:37AM0.13m | ||||||||||||||||||
Low Tide | 8:22AM-0.13m | 00:13AM0.08m | 9:06AM-0.10m | 1:25AM0.07m | 9:55AM-0.05m | 2:25AM0.06m | ||||||||||||||||||
 | | |  |  | | |  | |  | | | | | | | | | | | |  | |  | |
 | — | — | — | — | — | — | 5:56 | — | — | — | — | — | — | — | 5:56 | — | — | — | — | — | — | — | 5:56 | — |
 | — | — | 7:12 | — | — | — | — | — | — | — | 7:12 | — | — | — | — | — | — | — | 7:13 | — | — | — | — | 7:13 |
1 | 2 | 1 | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | 1 | 1 | 1 | |
Temp °C | 25 | 25 | 24 | 24 | 23 | 23 | 23 | 24 | 25 | 25 | 25 | 24 | 23 | 23 | 23 | 23 | 25 | 25 | 24 | 23 | 23 | 22 | 22 | 23 |
25 | 25 | 24 | 24 | 24 | 24 | 24 | 25 | 25 | 25 | 26 | 25 | 24 | 23 | 23 | 23 | 24 | 24 | 23 | 22 | 22 | 21 | 20 | 21 | |
Swell 1 Height (m) Direction Period (s) | NW 12 | NW 12 | NW 12 | E 8 | E 8 | E 8 | E 8 | E 8 | NW 10 | NW 10 | NW 11 | NW 10 | NW 10 | NW 10 | ENE 8 | ENE 8 | NNW 10 | NNW 11 | NNW 11 | NNW 11 | NNW 10 | NNW 10 | ENE 8 | NNW 10 |
 kJ | 39 | 37 | 36 | 374 | 333 | 294 | 251 | 217 | 52 | 87 | 90 | 63 | 106 | 80 | 123 | 270 | 94 | 65 | 65 | 64 | 42 | 40 | 534 | 19 |
Swell 2 Height (m) Direction Period (s) | SE 10 | SSW 14 | SSW 14 | NW 11 | NW 11 | NW 11 | NNW 11 | NNW 12 | NNW 12 | NNW 14 | NNW 13 | NNW 11 | SSW 15 | NNW 12 | ESE 8 | NNW 10 | SSW 14 | NW 9 | NW 9 | NW 9 | NW 9 | NW 9 | NNW 10 | WNW 8 |
| kJ | 16 | 20 | 19 | 63 | 59 | 58 | 84 | 90 | 30 | 18 | 35 | 47 | 21 | 29 | 112 | 62 | 20 | 13 | 13 | 12 | 12 | 12 | 33 | 7 |
Swell 3 Height (m) Direction Period (s) | NNW 9 | NNW 8 | SSE 10 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | NNW 13 | SE 7 | SSW 15 | NNW 10 | NW 10 | SE 9 | SSW 14 | SSW 14 | SSW 14 | SW 13 | SW 13 | WNW 8 | SW 13 |
| kJ | 7 | 7 | 10 | 18 | 18 | 18 | 18 | 18 | 19 | 19 | 20 | 17 | 2 | 21 | 62 | 14 | 3 | 20 | 19 | 19 | 7 | 7 | 7 | 7 |
Wind waves Height (m) Direction Period (s) | E 8 | E 8 | E 8 | — | — | — | — | — | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | — | — | ENE 8 | E 8 | E 8 | E 8 | ENE 8 | ENE 8 | E 8 | ENE 8 |
| kJ | 383 | 383 | 383 | — | — | — | — | — | 217 | 217 | 212 | 217 | 217 | 223 | — | — | 270 | 349 | 393 | 450 | 470 | 522 | 682 | 645 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 32 | 32 | 32 | 32 | 32 | 6 | 6 | 0 | 25 | 25 | 32 | 25 | 25 | 25 | 32 | 25 | 25 | 25 | 25 | 32 | 159 | 32 | 32 | 32 |
Best forecast wave conditions in Kaua'i | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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