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Surf Forecasts:
Acid Drops surfForecast / HAW – Kaua'i / USA
48hr Weather and Surf, issued 7 am Thursday 18 Sep 2025 HST
How big are the waves at Acid Drops today?
The current surf forecast for Acid Drops at 1PM is: 1.5m 7s primary swell from a East direction and 0.8m 8s secondary swell from a Southeast direction, 0.4m 14s secondary swell from a South-southwest direction (forecast issued at 07:00am September 18). The wind direction is predicted to be cross-offshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Sep) | 4.5ft (1.4m) | 6s |
| Afternoon (18 Sep) | 5ft (1.5m) | 7s |
| Evening (18 Sep) | 2.5ft (0.8m) | 8s |
Table - waves today at Acid Drops. (Swell directed towards the surf break)
Thursday 18 | Friday 19 | Saturday 20 | Sun 21 | |||||||||||||||||||||
| 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 | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 6 | 6 | 7 | 7 | 8 | 8 | 8 | 6 | 6 | 19 | 6 | 6 | 18 | 18 | 18 | 17 | 16 | 16 | 16 | 16 | 15 | 15 | 15 | 15 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 124 | 148 | 168 | 202 | 84 | 78 | 78 | 156 | 139 | 70 | 135 | 108 | 102 | 160 | 318 | 224 | 269 | 291 | 366 | 362 | 339 | 314 | 376 | 376 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross- off | cross- off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | cross- off | off | off | off | off |
High Tide / height (m) | 1:58PM 0.67 | 2:13AM 0.41 | 2:28PM 0.65 | 2:48AM 0.47 | 2:55PM 0.62 | |||||||||||||||||||
Low Tide / height (m) | 6:58AM 0.12 | 8:45PM 0.14 | 7:47AM 0.12 | 9:02PM 0.12 | 8:32AM 0.13 | 9:19PM 0.11 | ||||||||||||||||||
Thursday 18 | Friday 19 | Saturday 20 | Sun 21 | |||||||||||||||||||||
| Sunrise | - | 6:24 | - | - | - | - | - | - | - | 6:24 | - | - | - | - | - | - | - | 6:26 | - | - | - | - | - | - |
| Sunset | - | - | - | - | 6:37 | - | - | - | - | - | - | - | 6:37 | - | - | - | - | - | - | - | 6:36 | - | - | - |
 |  |  | | | |  | | | | | | | | | |  | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | - | - | - | - | - | - | - |
| Temp. °C | 25 | 25 | 27 | 28 | 27 | 25 | 26 | 25 | 25 | 25 | 27 | 28 | 27 | 26 | 26 | 25 | 25 | 25 | 27 | 27 | 26 | 25 | 25 | 25 |
| Feels °C (?) | 24 | 23 | 25 | 27 | 26 | 24 | 26 | 25 | 25 | 24 | 27 | 28 | 26 | 26 | 26 | 25 | 25 | 23 | 26 | 26 | 25 | 24 | 24 | 25 |
- Map Icons:
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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
Cross-off wind 16 km from Acid Drops has swung offshore (moderate winds from the ENE at BUOY-NWWH1). 0.9m 8s swell from the SE with a 0.4m 11s groundswell from the S and a 0.3m 14s groundswell from the SSW. 3 swells combining to make bigger set waves.
16 km away, 1 h 21 min ago
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