Surf Forecasts:
How big are the waves at Tank Beach today (15 Aug):
- Morning surf: Morning surf (15 Aug, local time) - 1.5ft (0.4m), 11s period with NE swell.
- Afternoon surf: Afternoon surf (15 Aug, local time) - 1.5ft (0.4m), 10s period with SE swell.
- Evening surf: Evening surf (15 Aug, local time) - 1.5ft (0.4m), 10s period with NE swell.
The current surf forecast for Tank Beach at 12PM is: 0.4m 10s primary swell from a Northeast direction (forecast issued at 09:00am August 15). An open ocean swell of 1.7m 9s is not directed at the surf break, a second open ocean swell of 0.4m 3s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (ChST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (15 Aug) | 1.5ft (0.4m) | 11s |
| Afternoon (15 Aug) | 1.5ft (0.4m) | 10s |
| Evening (15 Aug) | 1.5ft (0.4m) | 10s |
Table - waves today at Tank Beach. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 36mm), heaviest during Sat night. Warm (max 29°C on Sat morning, min 28°C on Sat morning). Wind will be generally light. | ||||||||||||||||||||||
Saturday 15 | Sunday 16 | Monday 17 | ||||||||||||||||||||
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) | NE 11 | NE 11 | NE 10 | SE 10 | NE 10 | NE 10 | SE 10 | SE 10 | SE 10 | SE 10 | NNE 12 | NNE 11 | NNE 11 | NNE 10 | NNE 10 | NNE 10 | NNE 9 | NNE 9 | NNE 9 | NNE 9 | NNE 9 | NNE 9 |
Wave Graph  | ||||||||||||||||||||||
 kJ | 42 | 41 | 36 | 36 | 37 | 36 | 30 | 25 | 25 | 28 | 53 | 48 | 65 | 58 | 64 | 61 | 59 | 58 | 56 | 55 | 54 | 45 |
Wind (km/h) | ||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | off | off | off | off | off | off | off | off | off | cross-off | off | off | off | off | off |
High Tide | 8:20AM0.69m | 10:00PM0.72m | 9:31AM0.64m | 10:22PM0.72m | 10:48AM0.60m | |||||||||||||||||
Low Tide | 3:13PM0.22m | 4:07AM0.42m | 3:50PM0.32m | 4:59AM0.35m | 4:26PM0.41m | |||||||||||||||||
 | | | |  | | | | | |  | | |  |  | |  | | | | |  | |
 | 6:01 | — | — | — | — | — | — | 6:01 | — | — | — | — | — | — | — | 6:01 | — | — | — | — | — | — |
 | — | — | — | 6:39 | — | — | — | — | — | — | — | 6:39 | — | — | — | — | — | — | — | 6:38 | — | — |
mm | 2 | 2 | 1 | 1 | 3 | 2 | 3 | 4 | 3 | 3 | — | — | 1 | — | — | 1 | — | 1 | 3 | 4 | 4 | — |
Temp °C | 28 | 28 | 29 | 29 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 |
Feels °C | 30 | 29 | 31 | 31 | 30 | 29 | 30 | 30 | 30 | 28 | 28 | 28 | 30 | 30 | 29 | 29 | 30 | 29 | 29 | 31 | 31 | 31 |
Swell 1 Height (m) Direction Period (s) | WNW 9 | W 9 | W 9 | W 9 | NE 10 | NE 10 | NE 9 | SE 10 | W 8 | W 8 | NNE 12 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 |
| kJ | 540 | 463 | 463 | 452 | 37 | 36 | 30 | 25 | 392 | 392 | 53 | 400 | 346 | 346 | 297 | 289 | 323 | 284 | 343 | 210 | 305 | 260 |
Swell 2 Height (m) Direction Period (s) | NE 11 | SE 10 | NE 10 | SE 10 | SE 10 | SE 10 | SE 10 | NE 10 | SE 10 | SE 10 | SE 10 | NNE 11 | NNE 11 | NNE 10 | NNE 10 | NNE 10 | NNE 9 | NNE 9 | NNE 9 | WSW 8 | NNE 9 | NNE 9 |
| kJ | 42 | 37 | 36 | 36 | 36 | 25 | 25 | 15 | 25 | 25 | 25 | 48 | 65 | 58 | 64 | 61 | 59 | 58 | 56 | 157 | 54 | 45 |
Swell 3 Height (m) Direction Period (s) | SE 10 | NE 11 | SE 10 | NE 10 | E 9 | E 9 | N 9 | ENE 9 | ENE 9 | NNE 12 | E 9 | SE 10 | SE 10 | SE 10 | E 8 | E 8 | E 9 | E 8 | E 9 | NNE 9 | E 8 | E 8 |
| kJ | 37 | 41 | 36 | 16 | 6 | 6 | 1 | 16 | 16 | 28 | 14 | 15 | 15 | 15 | 13 | 13 | 13 | 12 | 23 | 55 | 13 | 13 |
Wind waves Height (m) Direction Period (s) | — | — | WSW 3 | — | W 9 | W 9 | W 9 | W 8 | — | W 8 | W 8 | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | 4 | — | 432 | 425 | 425 | 405 | — | 191 | 448 | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||
Distance (km) | 242 | 242 | 242 | 242 | 242 | 0 | 0 | 0 | 0 | 1491 | 1491 | 2220 | 0 | 0 | 0 | 0 | 4 | 0 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Saipan | ||||||||||||||||||||||
Best forecast wave conditions in Northern Mariana Islands | ||||||||||||||||||||||
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