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Big Beach Surf Forecast
/ HAW – Maui (46 breaks) / Hawaii (267 breaks) /
Surf Forecasts:
Big Beach surfForecast / HAW – Maui / USA
48hr Weather and Surf, issued 7 am Monday 18 May 2026 HSTForecast update in hr min s Forecast update imminent
Big Beach surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Big Beach sea temperature is
25.4° C
(Which is normal for this time of year)How big are the waves at Big Beach today?
The current surf forecast for Big Beach at 10AM is: 0.6m 19s primary swell from a South-southwest direction and 0.7m 14s secondary swell from a South-southwest direction (forecast issued at 07:00am 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) | 1.5ft (0.5m) | 19s |
| Evening (18 May) | 2.5ft (0.7m) | 14s |
Table - waves today at Big Beach. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 5mm), mostly falling on Mon afternoon. Warm (max 26°C on Mon morning, min 23°C on Wed night). Wind will be generally light. | ||||||||||||||||||||||||
Monday 18 | Tuesday 19 | Wednesday 20 | Thu 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 | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
SSW 14 | SSW 14 | SSW 19 | SSW 19 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SW 18 | SSW 14 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 17 | SSW 17 | S 16 | |
183 | 183 | 251 | 251 | 168 | 163 | 123 | 163 | 229 | 239 | 163 | 118 | 163 | 246 | 222 | 165 | 213 | 158 | 160 | 154 | 105 | 101 | 101 | 135 | |
Wind (km/h) | ||||||||||||||||||||||||
off | off | off | cross-off | cross-off | off | off | off | off | off | cross-off | cross-off | off | off | off | off | off | off | cross-off | cross-off | off | off | off | off | |
High Tide | 3:32AM0.26m | 5:57PM0.62m | 4:08AM0.23m | 6:50PM0.59m | 4:47AM0.21m | 7:47PM0.55m | ||||||||||||||||||
Low Tide | 10:01AM-0.12m | 00:48AM0.14m | 10:44AM-0.09m | 2:11AM0.14m | 11:30AM-0.05m | |||||||||||||||||||
 |  | |  | |  | | | |  | | | |  | | | | | | | | | | | |
 | 5:47 | — | — | — | — | — | — | — | 5:47 | — | — | — | — | — | — | — | 5:47 | — | — | — | — | — | — | 5:46 |
 | — | — | — | — | 6:55 | — | — | — | — | — | — | — | 6:57 | — | — | — | — | — | — | — | 6:57 | — | — | 6:58 |
— | — | — | 1 | 1 | — | — | — | — | — | — | 1 | 1 | 1 | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 24 | 25 | 26 | 26 | 26 | 25 | 24 | 24 | 24 | 25 | 26 | 25 | 26 | 24 | 24 | 24 | 24 | 24 | 25 | 26 | 25 | 24 | 24 | 23 |
25 | 26 | 28 | 27 | 27 | 26 | 25 | 25 | 25 | 26 | 28 | 26 | 27 | 24 | 24 | 24 | 24 | 23 | 24 | 25 | 23 | 23 | 22 | 21 | |
Swell 1 Height (m) Direction Period (s) | SSW 14 | SSW 14 | SSW 14 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | S 16 |
 kJ | 183 | 183 | 183 | 174 | 168 | 163 | 123 | 163 | 229 | 239 | 163 | 118 | 163 | 246 | 222 | 165 | 213 | 158 | 160 | 154 | 105 | 67 | 101 | 135 |
Swell 2 Height (m) Direction Period (s) | SSW 18 | SSW 18 | SSW 19 | SSW 19 | SW 19 | SSW 16 | SSW 16 | SSW 16 | SW 18 | SW 18 | SSW 17 | SSW 17 | SSW 17 | SW 13 | SW 13 | SSW 16 | SW 16 | SSW 18 | SSW 18 | SSW 18 | SSW 18 | SSW 17 | SSW 17 | SSW 13 |
| kJ | 61 | 63 | 251 | 251 | 96 | 87 | 51 | 90 | 80 | 80 | 101 | 99 | 100 | 7 | 7 | 25 | 41 | 60 | 63 | 62 | 61 | 101 | 94 | 67 |
Swell 3 Height (m) Direction Period (s) | SSE 10 | SW 20 | S 6 | SW 14 | SSW 16 | SSW 20 | SSW 20 | SSW 18 | S 6 | SSW 13 | SW 18 | SW 18 | SSW 13 | S 10 | SW 16 | SW 13 | S 10 | SW 16 | SW 16 | SSW 16 | SW 16 | SW 16 | SW 15 | SW 15 |
| kJ | 10 | 60 | 3 | 49 | 51 | 75 | 37 | 30 | 3 | 18 | 80 | 80 | 17 | 2 | 10 | 7 | 2 | 41 | 41 | 25 | 10 | 10 | 9 | 8 |
Wind waves Height (m) Direction Period (s) | E 8 | E 8 | E 8 | E 6 | E 6 | E 6 | E 6 | E 8 | E 5 | E 6 | E 8 | E 8 | E 6 | E 6 | E 6 | E 8 | E 8 | E 6 | E 6 | E 7 | E 8 | E 8 | E 6 | E 7 |
| kJ | 346 | 346 | 381 | 206 | 238 | 256 | 184 | 297 | 119 | 133 | 258 | 265 | 192 | 293 | 229 | 347 | 392 | 293 | 322 | 345 | 450 | 568 | 392 | 380 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 11 | 0 | 11 | 0 |
Best forecast wave conditions in Maui | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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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 Big Beach 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.
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