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Chinamans Hat/Mokolii Surf Forecast
/ HAW – Oahu (122 breaks) / Hawaii (267 breaks) /
Surf Forecasts:
Chinamans Hat/Mokolii surfForecast / HAW – Oahu / USA
48hr Weather and Surf, issued 7 am Thursday 21 May 2026 HSTForecast update in hr min s Forecast update imminent
Chinamans Hat/Mokolii surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Chinamans Hat/Mokolii sea temperature is
25.4° C
(Which is normal for this time of year)How big are the waves at Chinamans Hat/Mokolii today?
The current surf forecast for Chinamans Hat/Mokolii at 12PM is: 2.5m 8s primary swell from a East-northeast direction and 0.3m 10s secondary swell from a North-northwest direction (forecast issued at 07:00am May 21). An open ocean swell of 0.3m 16s is not directed at the surf break. The wind direction is predicted to be cross-onshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 May) | 8ft (2.5m) | 8s |
| Afternoon (21 May) | 8ft (2.5m) | 8s |
| Evening (21 May) | 10ft (3.0m) | 8s |
Table - waves today at Chinamans Hat/Mokolii. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 2mm), mostly falling on Fri night. Warm (max 24°C on Thu afternoon, min 22°C on Fri night). Mainly strong winds. | ||||||||||||||||||||||||
Thursday 21 | Friday 22 | Saturday 23 | Sun 24 | |||||||||||||||||||||
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 |    |    |    |    | ||||||||||||||||||||
ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 9 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | |
1026 | 956 | 956 | 979 | 1071 | 1121 | 1147 | 1072 | 1000 | 953 | 891 | 870 | 926 | 949 | 857 | 878 | 817 | 837 | 982 | 1003 | 989 | 903 | 903 | 809 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | |
High Tide | 7:28PM0.75m | 6:27AM0.21m | 8:23PM0.69m | 9:47AM0.28m | 9:08PM0.63m | |||||||||||||||||||
Low Tide | 11:22AM-0.02m | 4:53AM0.18m | 12:27PM0.09m | 4:45AM0.14m | 1:58PM0.19m | |||||||||||||||||||
 |  |  | | | |  | | | | | | | | | |  | |  | | | | | | |
 | 5:50 | — | — | — | — | — | — | — | 5:50 | — | — | — | — | — | — | — | 5:50 | — | — | — | — | — | — | 5:48 |
 | — | — | — | — | 7:05 | — | — | — | — | — | — | — | 7:05 | — | — | — | — | — | — | — | 7:06 | — | — | 7:06 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | 1 | — | — | — | — | — | |
Temp °C | 23 | 23 | 23 | 24 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 24 | 23 | 23 | 23 | 23 | 22 | 23 | 23 | 23 | 23 | 23 | 23 | 23 |
19 | 19 | 19 | 20 | 19 | 19 | 18 | 18 | 18 | 19 | 18 | 20 | 18 | 19 | 19 | 19 | 18 | 19 | 18 | 18 | 18 | 19 | 19 | 20 | |
Swell 1 Height (m) Direction Period (s) | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | NNW 10 | NW 10 | NW 11 | NW 11 | NW 11 | NW 11 | NW 11 | NW 11 | NW 10 | NW 16 | NNW 16 | NNW 15 | NNW 14 | NNW 14 | NNW 13 |
 kJ | 39 | 19 | 19 | 19 | 9 | 44 | 42 | 42 | 42 | 20 | 27 | 30 | 30 | 30 | 30 | 30 | 29 | 27 | 67 | 99 | 148 | 140 | 134 | 120 |
Swell 2 Height (m) Direction Period (s) | S 16 | S 16 | S 16 | SSW 16 | SSW 16 | NNW 10 | NNW 9 | NNW 10 | NNW 10 | S 15 | S 14 | S 18 | S 18 | S 14 | S 17 | S 16 | S 16 | S 16 | NW 10 | NW 10 | S 15 | S 15 | NW 10 | S 15 |
| kJ | 21 | 46 | 20 | 50 | 48 | 9 | 9 | 10 | 10 | 17 | 16 | 25 | 25 | 14 | 50 | 47 | 46 | 46 | 27 | 26 | 39 | 38 | 25 | 38 |
Swell 3 Height (m) Direction Period (s) | SE 14 | SSE 14 | SSE 13 | SSE 13 | SSE 13 | SSE 13 | SSE 13 | SSE 13 | SSE 12 | SSE 12 | SSE 12 | S 14 | S 14 | S 18 | S 13 | S 13 | NNW 18 | NNW 18 | S 16 | S 15 | NW 10 | NW 10 | S 15 | NNW 10 |
| kJ | 8 | 18 | 17 | 17 | 17 | 16 | 16 | 16 | 15 | 15 | 14 | 15 | 14 | 24 | 14 | 14 | 31 | 60 | 45 | 42 | 26 | 25 | 38 | 9 |
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 9 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 |
| kJ | 1026 | 956 | 956 | 979 | 1071 | 1121 | 1147 | 1072 | 1000 | 953 | 891 | 870 | 926 | 949 | 857 | 878 | 817 | 837 | 982 | 1003 | 989 | 903 | 903 | 809 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 139 | 138 | 139 | 138 | 141 | 276 | 267 | 136 | 41 | 40 | 168 | 167 | 193 | 193 | 41 | 136 | 139 | 139 | 141 | 193 | 141 | 138 | 41 | 37 |
Best forecast wave conditions in Oahu | ||||||||||||||||||||||||
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)
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