- Forecast
- Maps
- Live
- Weather State
- Spot Information
Surf Forecasts:
Backyards surfForecast / HAW – Oahu / USA
48hr Weather and Surf, issued 7 pm Wednesday 20 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 12AM is: 0.5m 10s primary swell from a North-northwest direction and 0.3m 9s secondary swell from a Northwest direction (forecast issued at 07:00pm May 20). An open ocean swell of 2.4m 8s is not directed at the surf break. The wind direction is predicted to be cross-shore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 May) | 1ft (0.3m) | 10s |
| Afternoon (21 May) | 1.5ft (0.4m) | 10s |
| Evening (21 May) | 1.5ft (0.4m) | 10s |
Table - waves today at Backyards. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastSome drizzle, heaviest during Fri night. Warm (max 24°C on Thu morning, min 23°C on Wed night). Mainly strong winds. | ||||||||||||||||||||||||
Wed 20 | Thursday 21 | Friday 22 | Sat 23 | |||||||||||||||||||||
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 |    |    |    |    | ||||||||||||||||||||
NNW 10 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NW 10 | NW 10 | NW 10 | NW 10 | NW 10 | NW 10 | NW 10 | NNW 10 | NW 11 | NW 11 | NW 11 | NW 11 | NW 11 | NW 10 | NW 17 | NNW 16 | NNW 16 | |
97 | 73 | 63 | 41 | 33 | 19 | 19 | 24 | 24 | 23 | 23 | 25 | 25 | 25 | 40 | 56 | 57 | 57 | 57 | 56 | 53 | 74 | 102 | 162 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | |
High Tide | 7:41PM0.72m | 7:30AM0.27m | 8:31PM0.66m | 10:39AM0.34m | ||||||||||||||||||||
Low Tide | 10:48AM0.14m | 4:50AM0.26m | 11:43AM0.23m | 4:46AM0.23m | 1:28PM0.33m | |||||||||||||||||||
 |  | | | |  | | | | |  | | | | | | | | |  | | |  | | |
 | — | — | — | — | 5:50 | — | — | — | — | — | — | — | 5:50 | — | — | — | — | — | — | — | 5:50 | — | — | — |
 | 7:05 | — | — | — | — | — | — | — | 7:06 | — | — | — | — | — | — | — | 7:06 | — | — | — | — | — | — | 7:07 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | |
Temp °C | 24 | 23 | 23 | 23 | 23 | 23 | 24 | 24 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 24 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 |
21 | 20 | 19 | 19 | 19 | 19 | 20 | 20 | 18 | 18 | 18 | 18 | 18 | 19 | 19 | 19 | 18 | 19 | 19 | 19 | 19 | 19 | 18 | 18 | |
Swell 1 Height (m) Direction Period (s) | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NW 10 | NW 10 | NW 10 | NW 10 | NW 10 | NW 10 | NW 10 | NNW 10 | NW 11 | NW 11 | NW 11 | NW 11 | NW 11 | NW 10 | NW 10 | NNW 16 | NNW 16 |
 kJ | 97 | 73 | 63 | 41 | 33 | 19 | 19 | 24 | 24 | 23 | 23 | 25 | 25 | 25 | 40 | 56 | 57 | 57 | 57 | 56 | 53 | 51 | 102 | 162 |
Swell 2 Height (m) Direction Period (s) | SSW 16 | SSW 13 | NW 9 | NW 9 | WNW 9 | SSW 13 | SSW 13 | SSW 14 | S 16 | S 15 | SSW 15 | SSW 15 | SSW 15 | S 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | NNW 19 | NNW 18 | NW 17 | NW 10 | NW 10 |
| kJ | 50 | 18 | 13 | 12 | 8 | 17 | 16 | 20 | 5 | 17 | 21 | 21 | 21 | 17 | 21 | 20 | 19 | 18 | 18 | 35 | 31 | 74 | 50 | 50 |
Swell 3 Height (m) Direction Period (s) | SW 13 | SSW 15 | SSW 14 | SSW 13 | SSW 13 | NW 9 | NW 9 | S 16 | SW 12 | SW 12 | S 13 | S 13 | S 13 | S 12 | S 12 | S 18 | S 18 | S 18 | S 17 | SSW 13 | S 16 | S 16 | SSW 13 | S 16 |
| kJ | 7 | 21 | 20 | 17 | 16 | 3 | 3 | 5 | 6 | 6 | 3 | 3 | 3 | 3 | 3 | 6 | 6 | 6 | 6 | 18 | 21 | 20 | 17 | 5 |
Wind waves Height (m) Direction Period (s) | ENE 8 | ENE 8 | ENE 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 | ENE 9 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 |
| kJ | 704 | 737 | 800 | 850 | 962 | 962 | 979 | 1003 | 1071 | 1197 | 1175 | 1123 | 1048 | 975 | 1003 | 912 | 919 | 899 | 899 | 878 | 899 | 808 | 1047 | 1027 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 28 | 28 | 166 | 167 | 166 | 167 | 177 | 164 | 169 | 304 | 168 | 28 | 28 | 28 | 169 | 171 | 169 | 169 | 28 | 28 | 169 | 169 | 177 | 169 |
Best forecast wave conditions in Oahu | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
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 Backyards 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.
Nearest