Surf Forecasts:
How big are the waves at Tank Beach today (23 Aug):
- Morning surf: Morning surf (23 Aug, local time) - 5.5ft (1.7m), 10s period with NNW swell.
- Afternoon surf: Afternoon surf (23 Aug, local time) - 4.5ft (1.4m), 10s period with NNW swell.
- Evening surf: Evening surf (23 Aug, local time) - 4.5ft (1.3m), 10s period with NNW swell.
The current surf forecast for Tank Beach at 7AM is: 1.7m 10s primary swell from a North-northwest direction and 0.4m 12s secondary swell from a East-northeast direction (forecast issued at 03:00am August 23). An open ocean swell of 1.3m 9s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (ChST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (23 Aug) | 5.5ft (1.7m) | 10s |
| Afternoon (23 Aug) | 4.5ft (1.4m) | 10s |
| Evening (23 Aug) | 4.5ft (1.3m) | 10s |
Table - waves today at Tank Beach. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 14mm), heaviest on Sun night. Warm (max 29°C on Sun morning, min 27°C on Mon night). Wind will be generally light. | ||||||||||||||||||||||||
Sunday 23 | Monday 24 | Tuesday 25 | ||||||||||||||||||||||
1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | |
Swell Height Map |  |  |  |  |  |  |  |  |  | |||||||||||||||
Wave Height (m) Direction Period (s) | N 10 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NW 11 | NW 11 | NW 11 | NW 11 | NW 11 | NW 11 | ENE 13 | ENE 13 | ENE 13 | NW 12 | NW 12 | NW 12 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 770 | 556 | 610 | 607 | 424 | 301 | 345 | 304 | 304 | 283 | 277 | 272 | 328 | 347 | 273 | 229 | 239 | 184 | 181 | 178 | 176 | 200 | 197 | 197 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | cross-off | cross-off | off | off | cross-off | off | off | off | cross-off | cross-off | cross-off | off | off | cross-off | cross-off | off | off | off | off | glassy | glassy | glassy |
High Tide | 1:23AM0.66m | 6:50PM0.65m | 2:21AM0.66m | 7:19PM0.66m | 3:21AM0.67m | 7:44PM0.67m | ||||||||||||||||||
Low Tide | 10:10AM0.15m | 10:14PM0.62m | 10:55AM0.14m | 11:06PM0.61m | 11:38AM0.12m | |||||||||||||||||||
 | |  | |  | |  |  | | | | |  | |  | | | | | | | | | | |
 | — | 6:03 | — | — | — | — | — | — | — | 6:03 | — | — | — | — | — | — | — | 6:03 | — | — | — | — | — | — |
 | — | — | — | — | — | 6:36 | — | — | — | — | — | — | — | 6:35 | — | — | — | — | — | — | — | 6:34 | — | — |
mm | — | — | — | — | 1 | — | 1 | — | — | — | 2 | — | — | 1 | — | 1 | 2 | — | 1 | 1 | 1 | 1 | 2 | — |
Temp °C | 28 | 28 | 28 | 28 | 29 | 29 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 29 | 28 | 28 | 27 | 28 | 28 | 28 | 28 | 28 |
Feels °C | 29 | 29 | 29 | 29 | 30 | 30 | 29 | 29 | 29 | 30 | 31 | 30 | 31 | 31 | 30 | 32 | 29 | 30 | 30 | 31 | 32 | 33 | 34 | 33 |
Swell 1 Height (m) Direction Period (s) | N 10 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NW 11 | SW 9 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | WSW 9 | WSW 9 | WSW 9 | WSW 9 |
| kJ | 770 | 556 | 610 | 607 | 424 | 301 | 345 | 304 | 304 | 283 | 277 | 272 | 328 | 237 | 349 | 471 | 627 | 678 | 574 | 563 | 443 | 377 | 318 | 251 |
Swell 2 Height (m) Direction Period (s) | SSE 9 | SSE 9 | ENE 12 | ENE 12 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | SW 8 | SW 8 | SW 9 | NW 11 | NW 11 | NW 11 | NW 11 | NW 11 | NW 11 | NW 11 | NW 11 | NW 12 | NW 12 | NW 12 |
| kJ | 184 | 213 | 50 | 50 | 227 | 203 | 180 | 151 | 124 | 127 | 149 | 160 | 197 | 347 | 273 | 229 | 229 | 172 | 142 | 142 | 171 | 200 | 197 | 197 |
Swell 3 Height (m) Direction Period (s) | WNW 9 | WNW 8 | WNW 8 | W 8 | ENE 12 | E 13 | E 12 | E 12 | E 12 | E 12 | SSE 9 | SSE 9 | SSE 9 | SSE 10 | SSE 9 | SSE 9 | ENE 13 | ENE 13 | ENE 13 | ENE 13 | ENE 13 | ENE 13 | ENE 13 | ENE 13 |
| kJ | 25 | 22 | 22 | 11 | 50 | 81 | 78 | 73 | 72 | 72 | 127 | 92 | 96 | 80 | 78 | 78 | 239 | 184 | 181 | 178 | 176 | 173 | 173 | 170 |
Wind waves Height (m) Direction Period (s) | — | — | S 9 | S 9 | SSW 5 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | S 8 | — | — | S 8 | S 8 | — | — | — | — | — | — | — | — | — |
| kJ | — | — | 269 | 343 | 39 | 145 | 129 | 149 | 149 | 149 | 74 | — | — | 72 | 82 | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 2056 | 2056 | 2067 | 2219 | 2067 | 2220 | 0 | 0 | 1491 | 2056 | 0 | 0 | 0 | 2056 | 2056 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Saipan | ||||||||||||||||||||||||
Best forecast wave conditions in Northern Mariana Islands | ||||||||||||||||||||||||
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