Surf Forecasts:
How big are the waves at Tank Beach today (22 Aug):
- Morning surf: Morning surf (22 Aug, local time) - 7ft (2.2m), 9s period with NE swell.
- Afternoon surf: Afternoon surf (22 Aug, local time) - 7ft (2.1m), 9s period with NNE swell.
- Evening surf: Evening surf (22 Aug, local time) - 7ft (2.2m), 10s period with N swell.
The current surf forecast for Tank Beach at 6AM is: 2.2m 9s primary swell from a Northeast direction and 0.6m 11s secondary swell from a Southeast direction (forecast issued at 09:00pm August 21). An open ocean swell of 1.3m 5s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (ChST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (22 Aug) | 7ft (2.2m) | 9s |
| Afternoon (22 Aug) | 7ft (2.1m) | 9s |
| Evening (22 Aug) | 7ft (2.2m) | 10s |
Table - waves today at Tank Beach. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 43mm), heaviest during Sun night. Warm (max 29°C on Fri night, min 26°C on Sun night). Winds decreasing (fresh winds from the WNW on Fri night, light winds from the SSW by Mon afternoon). | ||||||||||||||||||
Fri 21 | Saturday 22 | Sunday 23 | ||||||||||||||||
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) | ESE 12 | E 11 | E 10 | ENE 9 | NE 9 | NE 9 | NNE 9 | NNE 9 | N 10 | N 10 | N 10 | N 10 | N 10 | N 10 | NNW 11 | NNW 10 | NNW 10 | NNW 10 |
Wave Graph  | ||||||||||||||||||
 kJ | 1569 | 1289 | 855 | 765 | 805 | 822 | 749 | 761 | 1043 | 838 | 771 | 618 | 598 | 573 | 531 | 385 | 320 | 304 |
Wind (km/h) | ||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | off | off | off | off | cross-off | off | off | off | off |
High Tide | 5:27PM0.61m | 00:34AM0.66m | 6:16PM0.63m | 1:23AM0.66m | 6:50PM0.65m | |||||||||||||
Low Tide | 7:38PM0.61m | 9:20AM0.18m | 9:05PM0.62m | 10:10AM0.15m | ||||||||||||||
 | |  | |  | | | |  | | | |  | | |  | | | |
 | — | — | — | 6:03 | — | — | — | — | — | — | — | 6:03 | — | — | — | — | — | — |
 | — | — | — | — | — | — | — | 6:36 | — | — | — | — | — | — | — | 6:36 | — | — |
mm | — | — | 1 | 5 | 4 | 2 | 1 | 1 | — | 2 | 1 | — | — | — | 1 | — | 1 | — |
Temp °C | 29 | 29 | 29 | 29 | 28 | 29 | 29 | 29 | 29 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 |
Feels °C | 31 | 31 | 30 | 28 | 26 | 29 | 29 | 30 | 30 | 29 | 28 | 29 | 28 | 28 | 29 | 29 | 29 | 30 |
Swell 1 Height (m) Direction Period (s) | ESE 12 | E 11 | E 10 | ENE 9 | NE 9 | NE 9 | NNE 9 | NNE 9 | N 10 | N 10 | N 10 | N 10 | N 10 | N 10 | NNW 11 | NNW 10 | NNW 10 | NNW 10 |
| kJ | 1569 | 1289 | 855 | 765 | 805 | 822 | 749 | 761 | 1043 | 838 | 771 | 618 | 598 | 573 | 531 | 385 | 320 | 304 |
Swell 2 Height (m) Direction Period (s) | W 9 | NNE 7 | NNE 8 | SE 11 | SE 11 | SE 10 | SSE 10 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | SW 8 | SW 8 |
| kJ | 40 | 168 | 172 | 56 | 90 | 148 | 164 | 180 | 172 | 154 | 184 | 213 | 197 | 197 | 141 | 172 | 177 | 184 |
Swell 3 Height (m) Direction Period (s) | WSW 8 | W 9 | WSW 8 | E 15 | E 15 | E 14 | E 13 | E 13 | WNW 9 | WNW 9 | WNW 9 | WNW 8 | ENE 12 | ENE 12 | ENE 12 | E 13 | SSE 9 | SSE 9 |
| kJ | 26 | 39 | 28 | 17 | 4 | 14 | 14 | 14 | 27 | 26 | 25 | 22 | 50 | 50 | 50 | 81 | 180 | 124 |
Wind waves Height (m) Direction Period (s) | NNE 6 | — | W 8 | W 8 | W 5 | W 5 | W 5 | W 5 | SW 8 | WSW 5 | SW 4 | SW 4 | SW 5 | SW 5 | SW 9 | SW 8 | — | — |
| kJ | 120 | — | 37 | 140 | 75 | 83 | 70 | 64 | 15 | 37 | 27 | 34 | 43 | 55 | 197 | 177 | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||
Distance (km) | 237 | 237 | 2194 | 242 | 2075 | 2194 | 2262 | 2262 | 2220 | 2220 | 2220 | 2067 | 2056 | 2102 | 2236 | 2102 | 0 | 0 |
Best forecast wave conditions in Saipan | ||||||||||||||||||
Best forecast wave conditions in Northern Mariana Islands | ||||||||||||||||||
Header Global | ||||||||||||||||||
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