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Surf Forecasts:
Backyards surfForecast / HAW – Oahu / USA
48hr Weather and Surf, issued 7 pm Tuesday 19 May 2026 HSTForecast update in hr min s Forecast update imminent
Backyards surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Backyards sea temperature is
25.5° C
(Which is normal for this time of year)How big are the waves at Backyards today?
The current surf forecast for Backyards at 1AM is: 0.7m 10s primary swell from a Northwest direction (forecast issued at 07:00pm May 19). An open ocean swell of 0.3m 15s is not directed at the surf break, a second open ocean swell of 1.9m 8s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 May) | 2ft (0.6m) | 10s |
| Afternoon (20 May) | 1.5ft (0.5m) | 11s |
| Evening (20 May) | 1.5ft (0.5m) | 10s |
Table - waves today at Backyards. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Warm (max 24°C on Tue night, min 23°C on Tue night). Mainly strong winds. | ||||||||||||||||||||||||
Tue 19 | Wednesday 20 | Thursday 21 | Fri 22 | |||||||||||||||||||||
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 | 11 AM | 2 PM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
NW 10 | NW 11 | NW 11 | NW 10 | NW 10 | NNW 10 | NW 10 | NNW 11 | NNW 10 | NNW 11 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NW 10 | NW 10 | NW 10 | NW 10 | NW 10 | NW 10 | NW 10 | NW 10 | NNW 10 | NW 11 | |
89 | 92 | 115 | 108 | 104 | 67 | 47 | 65 | 97 | 75 | 63 | 41 | 33 | 37 | 24 | 24 | 24 | 23 | 23 | 25 | 25 | 25 | 40 | 56 | |
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 | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | |
High Tide | 6:46PM0.77m | 7:41PM0.72m | 7:30AM0.27m | |||||||||||||||||||||
Low Tide | 10:03AM0.06m | 10:48AM0.14m | 4:50AM0.26m | 11:43AM0.23m | ||||||||||||||||||||
 |  | | | | | | | | | | |  |  | | | | | | | | | | | |
 | — | — | — | — | 5:50 | — | — | — | — | — | — | — | 5:50 | — | — | — | — | — | — | — | 5:50 | — | — | — |
 | 7:05 | — | — | — | — | — | — | — | 7:05 | — | — | — | — | — | — | — | 7:06 | — | — | — | — | — | — | 7:06 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 25 | 24 | 24 | 24 | 23 | 24 | 24 | 24 | 24 | 23 | 23 | 23 | 23 | 23 | 24 | 24 | 23 | 23 | 23 | 23 | 23 | 23 | 24 | 24 |
24 | 22 | 22 | 23 | 21 | 22 | 21 | 21 | 21 | 20 | 19 | 19 | 19 | 18 | 20 | 19 | 18 | 18 | 18 | 18 | 19 | 19 | 20 | 20 | |
Swell 1 Height (m) Direction Period (s) | NW 10 | NW 11 | NW 11 | NW 10 | NW 10 | NNW 10 | NW 10 | NNW 11 | NNW 10 | NNW 11 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NW 10 | NW 10 | NW 10 | NW 10 | NW 10 | NW 10 | NW 10 | NW 10 | NNW 10 | NW 11 |
 kJ | 89 | 92 | 115 | 108 | 104 | 67 | 47 | 65 | 97 | 75 | 63 | 41 | 33 | 37 | 24 | 24 | 24 | 23 | 23 | 25 | 25 | 25 | 40 | 56 |
Swell 2 Height (m) Direction Period (s) | SW 13 | SSW 16 | SSW 15 | SSW 15 | SW 16 | SW 16 | NNW 11 | SSW 16 | SSW 16 | SSW 13 | NW 9 | NW 9 | WNW 9 | SSW 13 | SSW 13 | SSW 14 | S 16 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | S 15 | SSW 15 | SSW 14 |
| kJ | 27 | 24 | 21 | 44 | 64 | 64 | 43 | 50 | 50 | 18 | 13 | 12 | 8 | 16 | 16 | 20 | 5 | 22 | 21 | 21 | 21 | 17 | 21 | 20 |
Swell 3 Height (m) Direction Period (s) | SSW 18 | SSW 13 | NNW 13 | SW 16 | SW 13 | NNW 12 | SW 16 | NW 10 | SW 13 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | S 16 | S 16 | S 16 | SW 12 | SW 14 | S 13 | S 13 | S 13 | SW 13 | S 12 | S 18 |
| kJ | 30 | 17 | 17 | 10 | 7 | 28 | 64 | 14 | 7 | 20 | 20 | 16 | 16 | 21 | 20 | 5 | 6 | 8 | 3 | 3 | 3 | 7 | 3 | 6 |
Wind waves Height (m) Direction Period (s) | E 8 | E 7 | E 7 | E 8 | ENE 8 | E 8 | E 8 | E 8 | ENE 8 | ENE 8 | ENE 8 | E 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 |
| kJ | 324 | 358 | 387 | 464 | 485 | 573 | 642 | 701 | 748 | 737 | 785 | 857 | 939 | 893 | 893 | 979 | 1003 | 1097 | 1121 | 1098 | 1048 | 953 | 912 | 847 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 28 | 28 | 28 | 164 | 166 | 167 | 167 | 177 | 166 | 304 | 167 | 28 | 164 | 28 | 28 | 169 | 169 |
Best forecast wave conditions in Oahu | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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