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Acid Drops 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
Acid Drops surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Acid Drops sea temperature is
24.7° C
(Which is normal for this time of year)How big are the waves at Acid Drops today?
The current surf forecast for Acid Drops at 8PM is: 0.7m 14s primary swell from a South-southwest direction and 0.5m 7s secondary swell from a Southeast direction (forecast issued at 01:00pm May 18). An open ocean swell of 1.7m 8s is not directed at the surf break. The wind direction is predicted to be offshore and the swell rating is 2.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 May) | 2.5ft (0.7m) | 14s |
| Afternoon (18 May) | 2.5ft (0.7m) | 14s |
| Evening (18 May) | 2.5ft (0.7m) | 14s |
Table - waves today at Acid Drops. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 3mm), mostly falling on Mon afternoon. Warm (max 26°C on Tue morning, min 22°C on Wed night). Mainly fresh winds. | ||||||||||||||||||||||||
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 |    |    |    |    | ||||||||||||||||||||
SSW 19 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 14 | E 8 | E 8 | SSW 17 | SSW 15 | SSW 15 | SSW 16 | E 7 | SSW 14 | SSW 14 | SSW 14 | E 8 | E 8 | E 8 | SSW 14 | E 8 | E 8 | E 8 | |
248 | 229 | 166 | 161 | 158 | 158 | 161 | 217 | 212 | 433 | 242 | 249 | 273 | 239 | 158 | 158 | 165 | 374 | 401 | 476 | 104 | 634 | 650 | 675 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | cross-off | off | off | off | off | cross-off | cross-off | cross-off | cross-off | off | off | off | off | off | cross-off | cross-off | off | off | off | off | off | off | |
High Tide | 5:37PM0.82m | 4:42AM0.25m | 6:29PM0.78m | 5:47AM0.24m | 7:22PM0.73m | 7:23AM0.24m | ||||||||||||||||||
Low Tide | 9:45AM-0.02m | 1:17AM0.19m | 10:28AM0.01m | 2:24AM0.19m | 11:15AM0.07m | 3:26AM0.18m | ||||||||||||||||||
 | | |  | | |  |  |  | | | | | | | | | | | | | | | | |
 | — | — | — | — | — | — | 5:56 | — | — | — | — | — | — | — | 5:56 | — | — | — | — | — | — | — | 5:56 | — |
 | — | — | 7:10 | — | — | — | — | — | — | — | 7:10 | — | — | — | — | — | — | — | 7:12 | — | — | — | — | 7:12 |
1 | 1 | 1 | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 25 | 25 | 25 | 24 | 23 | 23 | 23 | 24 | 26 | 26 | 25 | 24 | 23 | 23 | 23 | 24 | 25 | 25 | 24 | 23 | 23 | 22 | 23 | 23 |
25 | 24 | 25 | 24 | 23 | 23 | 23 | 24 | 26 | 26 | 25 | 24 | 23 | 22 | 22 | 23 | 24 | 23 | 22 | 21 | 21 | 20 | 21 | 21 | |
Swell 1 Height (m) Direction Period (s) | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 14 | SSW 14 | SSW 14 | SSW 17 | SSW 15 | SSW 15 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | S 16 |
 kJ | 180 | 229 | 166 | 161 | 158 | 158 | 161 | 175 | 178 | 433 | 242 | 249 | 273 | 167 | 158 | 158 | 165 | 174 | 110 | 105 | 104 | 101 | 101 | 134 |
Swell 2 Height (m) Direction Period (s) | SSE 8 | SSE 8 | SE 8 | SE 7 | SSE 7 | SE 7 | SE 7 | SSW 18 | SSW 18 | SSE 7 | SSE 7 | SE 8 | SE 8 | SE 7 | SE 7 | SE 7 | SE 7 | SSW 18 | SSW 18 | S 18 | SSW 17 | SSW 17 | S 16 | SSW 13 |
| kJ | 39 | 39 | 31 | 26 | 21 | 25 | 23 | 176 | 176 | 20 | 20 | 28 | 28 | 12 | 13 | 13 | 13 | 62 | 62 | 56 | 101 | 93 | 137 | 70 |
Swell 3 Height (m) Direction Period (s) | SSW 19 | SSW 19 | SSW 19 | SE 10 | SSW 16 | SSW 17 | SSW 17 | SSE 7 | SE 7 | SE 9 | SE 9 | SE 9 | SE 10 | NW 10 | SW 16 | SW 16 | SSW 18 | SE 7 | SSE 15 | SE 7 | SE 7 | SE 14 | SE 14 | SE 14 |
| kJ | 248 | 214 | 146 | 48 | 90 | 93 | 97 | 20 | 27 | 23 | 23 | 23 | 23 | 25 | 66 | 66 | 64 | 8 | 22 | 13 | 14 | 32 | 32 | 51 |
Wind waves Height (m) Direction Period (s) | ENE 8 | ENE 8 | ENE 8 | ENE 8 | E 8 | ENE 8 | ENE 8 | E 8 | E 8 | ENE 8 | ENE 7 | ENE 7 | E 7 | E 7 | ENE 8 | ENE 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 |
| kJ | 264 | 350 | 416 | 373 | 333 | 257 | 218 | 217 | 212 | 218 | 220 | 203 | 198 | 239 | 257 | 264 | 349 | 374 | 401 | 476 | 548 | 634 | 650 | 675 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 17 | 20 | 26 | 0 | 0 | 0 | 0 | 17 | 17 | 17 | 17 | 0 | 0 | 0 | 0 | 20 | 17 | 20 | 20 | 18 | 136 | 18 | 26 | 26 |
Best forecast wave conditions in Kaua'i | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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