Surf Forecasts:
How big are the waves at Tank Beach today (17 Sep):
- Morning surf: Morning surf (17 Sep, local time) - 5.5ft (1.7m), 8s period with NNE swell.
- Afternoon surf: Afternoon surf (17 Sep, local time) - 5ft (1.5m), 8s period with NNE swell.
- Evening surf: Evening surf (17 Sep, local time) - 4.5ft (1.4m), 8s period with NNE swell.
The current surf forecast for Tank Beach at 5AM is: 1.8m 8s primary swell from a Northeast direction and 0.7m 12s secondary swell from a East-northeast direction (forecast issued at 09:00pm September 16). The wind direction is predicted to be cross-offshore.
| Time (ChST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 Sep) | 5.5ft (1.7m) | 8s |
| Afternoon (17 Sep) | 5ft (1.5m) | 8s |
| Evening (17 Sep) | 4.5ft (1.4m) | 8s |
Table - waves today at Tank Beach. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 9mm), mostly falling on Wed night. Warm (max 29°C on Wed night, min 28°C on Fri night). Wind will be generally light. | ||||||||||||||||||
Wed 16 | Thursday 17 | Friday 18 | ||||||||||||||||
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) | NE 9 | NE 8 | NE 8 | NE 8 | NE 8 | NNE 8 | NNE 8 | NE 8 | NNE 8 | NNE 8 | N 8 | N 9 | NNE 9 | NNE 10 | NNE 9 | N 9 | N 8 | N 8 |
Wave Graph  | ||||||||||||||||||
 kJ | 655 | 588 | 467 | 450 | 400 | 374 | 322 | 295 | 309 | 268 | 185 | 269 | 308 | 269 | 162 | 162 | 93 | 94 |
Wind (km/h) | ||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | off | off | off |
High Tide | 9:44PM0.66m | 1:52PM0.62m | 10:08PM0.65m | 3:20PM0.63m | ||||||||||||||
Low Tide | 4:46PM0.56m | 5:41AM0.20m | 5:37PM0.59m | 6:33AM0.19m | 6:46PM0.61m | |||||||||||||
 |  | | |  |  | | |  |  | | |  | | | | | | |
 | — | — | — | 6:05 | — | — | — | — | — | — | — | 6:05 | — | — | — | — | — | — |
 | — | — | — | — | — | — | — | 6:16 | — | — | — | — | — | — | — | 6:15 | — | — |
mm | 1 | — | 1 | 1 | 1 | — | — | — | — | — | — | 1 | — | 1 | 1 | 1 | 1 | 1 |
Temp °C | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 |
Feels °C | 30 | 30 | 31 | 31 | 31 | 31 | 30 | 29 | 30 | 30 | 30 | 30 | 31 | 31 | 31 | 31 | 31 | 30 |
Swell 1 Height (m) Direction Period (s) | NE 9 | NE 8 | NE 8 | NE 8 | NE 8 | NNE 8 | NNE 8 | NE 8 | NNE 8 | NNE 8 | N 8 | N 9 | NNE 9 | NNE 10 | SW 9 | N 9 | SW 9 | SW 9 |
| kJ | 655 | 588 | 467 | 450 | 400 | 374 | 322 | 295 | 309 | 268 | 185 | 269 | 308 | 269 | 176 | 162 | 170 | 174 |
Swell 2 Height (m) Direction Period (s) | ENE 13 | ENE 13 | ENE 12 | ENE 12 | ENE 12 | ENE 12 | ENE 12 | S 8 | S 8 | S 8 | ENE 11 | S 8 | SSW 8 | SW 9 | NNE 9 | SW 8 | N 8 | N 8 |
| kJ | 149 | 147 | 138 | 131 | 99 | 96 | 94 | 42 | 44 | 42 | 82 | 63 | 48 | 183 | 162 | 118 | 93 | 94 |
Swell 3 Height (m) Direction Period (s) | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | WSW 8 | WSW 8 | WSW 8 | S 8 | SW 8 | WSW 8 | SE 9 | ENE 11 | ENE 11 | ENE 11 | ENE 12 |
| kJ | 23 | 35 | 35 | 34 | 34 | 34 | 34 | 46 | 45 | 45 | 48 | 33 | 48 | 22 | 81 | 50 | 48 | 53 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | WSW 3 | WSW 3 | W 3 | W 4 | WSW 3 | — | W 4 | WNW 4 | — | — | — |
| kJ | — | — | — | — | — | — | — | 3 | 4 | 3 | 10 | 4 | — | 5 | 3 | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||
Distance (km) | 237 | 237 | 242 | 242 | 242 | 242 | 2214 | 237 | 242 | 242 | 242 | 242 | 237 | 0 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Saipan | ||||||||||||||||||
Best forecast wave conditions in Northern Mariana Islands | ||||||||||||||||||
Header Global | ||||||||||||||||||
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