Surf Forecasts:
How big are the waves at Waimanalo today (20 Jul):
- Morning surf: Morning surf (20 Jul, local time) - 3.5ft (1.1m), 8s period with E swell.
- Afternoon surf: Afternoon surf (20 Jul, local time) - 4.5ft (1.3m), 7s period with ENE swell.
- Evening surf: Evening surf (20 Jul, local time) - 4.5ft (1.4m), 7s period with ENE swell.
The current surf forecast for Waimanalo at 9PM is: 1.4m 7s primary swell from a East-northeast direction and 0.1m 13s secondary swell from a East direction (forecast issued at 01:00pm July 20). An open ocean swell of 0.4m 16s is not directed at the surf break. The wind direction is predicted to be onshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Jul) | 3.5ft (1.1m) | 8s |
| Afternoon (20 Jul) | 4.5ft (1.3m) | 7s |
| Evening (20 Jul) | 4.5ft (1.4m) | 7s |
Table - waves today at Waimanalo. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 12mm), heaviest on Mon night. Warm (max 26°C on Tue afternoon, min 24°C on Tue night). Winds increasing (light winds from the ENE on Tue morning, fresh winds from the ENE by Wed night). | |||||||||||||||||||||
Mon 20 | Tuesday 21 | Wednesday 22 | |||||||||||||||||||
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 | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | ENE 8 | ENE 8 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | E 12 | ENE 6 |
Wave Graph  | |||||||||||||||||||||
 kJ | 199 | 199 | 234 | 214 | 223 | 210 | 186 | 176 | 176 | 158 | 168 | 158 | 158 | 200 | 227 | 220 | 189 | 166 | 144 | 129 | 214 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | on | on | cross-on | cross-on | cross-on | on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | on | on | cross-on |
High Tide | 9:13AM0.37m | 6:04PM0.45m | 11:19AM0.44m | 4:59PM0.41m | 12:21PM0.51m | ||||||||||||||||
Low Tide | 12:37PM0.29m | 2:03AM0.07m | 3:19PM0.35m | 2:49AM0.05m | |||||||||||||||||
 | | |  | |  | |  | | |  | | | | | | | | | | | |
 | — | — | — | — | — | — | 5:58 | — | — | — | — | — | — | — | 6:00 | — | — | — | — | — | — |
 | — | — | 7:14 | — | — | — | — | — | — | — | 7:14 | — | — | — | — | — | — | — | 7:14 | — | — |
mm | — | — | — | — | — | 1 | 2 | 2 | 1 | — | — | 1 | 1 | 1 | 1 | — | — | — | — | — | — |
Temp °C | 26 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 26 | 25 | 25 | 25 | 24 | 24 | 24 | 24 | 25 | 25 | 25 | 24 |
Feels °C | 25 | 23 | 23 | 24 | 24 | 25 | 25 | 26 | 25 | 25 | 24 | 24 | 25 | 23 | 22 | 21 | 21 | 23 | 23 | 23 | 21 |
Swell 1 Height (m) Direction Period (s) | S 16 | S 16 | S 16 | S 16 | S 15 | S 15 | S 15 | S 15 | S 14 | S 14 | S 14 | S 14 | S 14 | E 13 | E 12 | E 12 | E 12 | E 12 | E 11 | E 12 | S 13 |
| kJ | 47 | 81 | 81 | 122 | 72 | 107 | 106 | 104 | 103 | 102 | 99 | 95 | 91 | 84 | 109 | 103 | 103 | 100 | 125 | 129 | 53 |
Swell 2 Height (m) Direction Period (s) | S 13 | SW 18 | SW 18 | E 13 | S 13 | E 12 | E 12 | E 12 | E 12 | E 12 | E 14 | E 14 | E 13 | S 14 | S 13 | S 13 | SSE 13 | SSE 13 | S 13 | S 13 | SSW 22 |
| kJ | 31 | 13 | 12 | 3 | 29 | 12 | 12 | 11 | 25 | 24 | 37 | 33 | 85 | 89 | 88 | 87 | 59 | 58 | 54 | 53 | 92 |
Swell 3 Height (m) Direction Period (s) | SW 18 | E 14 | E 13 | SW 18 | E 13 | SW 16 | SW 16 | E 16 | E 15 | E 15 | E 11 | E 11 | E 11 | S 26 | S 26 | SSW 24 | S 11 | S 10 | SSW 23 | SSW 22 | SSW 18 |
| kJ | 13 | 4 | 3 | 12 | 13 | 11 | 11 | 19 | 17 | 38 | 22 | 22 | 9 | 53 | 51 | 56 | 20 | 19 | 107 | 98 | 30 |
Wind waves Height (m) Direction Period (s) | ENE 8 | ENE 8 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 6 | ENE 6 |
| kJ | 199 | 199 | 234 | 214 | 223 | 210 | 186 | 176 | 176 | 158 | 168 | 158 | 158 | 200 | 227 | 220 | 189 | 166 | 144 | 121 | 214 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 15 | 44 | 46 | 44 | 15 | 15 | 15 | 14 | 15 | 44 | 44 | 15 | 44 | 44 | 44 | 44 | 44 | 44 | 44 | 44 | 44 |
Best forecast wave conditions in Oahu | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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