Surf Forecasts:
How big are the waves at Tank Beach today (31 Jul):
- Morning surf: Morning surf (31 Jul, local time) - 1.5ft (0.4m), 15s period with E swell.
- Afternoon surf: Afternoon surf (31 Jul, local time) - 2.5ft (0.7m), 16s period with E swell.
- Evening surf: Evening surf (31 Jul, local time) - 3.5ft (1.1m), 15s period with E swell.
The current surf forecast for Tank Beach at 3PM is: 0.7m 16s primary swell from a East direction and 0.6m 8s secondary swell from a East-northeast direction (forecast issued at 09:00am July 31). The wind direction is predicted to be cross-offshore and the swell rating is 2.
| Time (ChST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (31 Jul) | 1.5ft (0.4m) | 15s |
| Afternoon (31 Jul) | 2.5ft (0.7m) | 16s |
| Evening (31 Jul) | 3.5ft (1.1m) | 15s |
Table - waves today at Tank Beach. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 8mm), mostly falling on Sun morning. Warm (max 29°C on Fri morning, min 28°C on Fri morning). Winds increasing (light winds from the SW on Fri morning, fresh winds from the W by Sun night). | ||||||||||||||||||||||
Friday 31 | Saturday 1 | Sunday 2 | ||||||||||||||||||||
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) | ENE 8 | E 15 | E 14 | E 16 | E 15 | E 14 | E 14 | E 14 | E 16 | E 15 | E 15 | E 14 | ENE 14 | E 14 | ENE 16 | ENE 15 | ENE 15 | ENE 14 | ENE 14 | ENE 15 | ENE 15 | ENE 15 |
Wave Graph  | ||||||||||||||||||||||
 kJ | 50 | 69 | 91 | 243 | 440 | 496 | 813 | 813 | 1471 | 1386 | 1246 | 1077 | 1382 | 912 | 1866 | 1635 | 1659 | 1690 | 1667 | 1939 | 2010 | 2274 |
Wind (km/h) | ||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 6:48AM0.69m | 10:16PM0.70m | 7:39AM0.67m | 10:33PM0.70m | 8:38AM0.63m | |||||||||||||||||
Low Tide | 2:36PM0.13m | 3:17AM0.56m | 3:10PM0.18m | 4:08AM0.52m | 3:43PM0.24m | |||||||||||||||||
 | | | |  | | | | | | | | | | | |  | | | |  | | |
 | 5:58 | — | — | — | — | — | — | 5:58 | — | — | — | — | — | — | — | 5:58 | — | — | — | — | — | — |
 | — | — | — | 6:46 | — | — | — | — | — | — | — | 6:46 | — | — | — | — | — | — | — | 6:46 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 3 | 1 | — | 1 | 1 |
Temp °C | 28 | 28 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 28 | 28 | 29 | 29 | 29 | 29 |
Feels °C | 33 | 32 | 33 | 32 | 32 | 32 | 32 | 32 | 31 | 31 | 31 | 30 | 31 | 31 | 31 | 31 | 30 | 29 | 29 | 28 | 28 | 28 |
Swell 1 Height (m) Direction Period (s) | ENE 8 | ENE 8 | ENE 8 | E 16 | E 15 | E 14 | E 14 | E 14 | E 16 | E 15 | E 15 | E 14 | ENE 14 | E 14 | ENE 16 | ENE 15 | ENE 15 | ENE 14 | ENE 14 | ENE 15 | ENE 15 | ENE 15 |
| kJ | 50 | 50 | 51 | 243 | 440 | 496 | 813 | 813 | 1471 | 1386 | 1246 | 1077 | 1382 | 912 | 1866 | 1635 | 1659 | 1690 | 1667 | 1939 | 2010 | 2274 |
Swell 2 Height (m) Direction Period (s) | NNE 9 | NNE 9 | E 14 | ENE 8 | ENE 8 | ENE 10 | E 19 | E 18 | SW 7 | SW 7 | WSW 7 | WSW 7 | WSW 7 | ENE 16 | WSW 7 | WSW 7 | WSW 8 | WSW 8 | N 8 | NNE 8 | NE 20 | SSE 10 |
| kJ | 28 | 28 | 91 | 51 | 50 | 102 | 256 | 311 | 42 | 53 | 64 | 68 | 86 | 575 | 86 | 104 | 107 | 142 | 21 | 13 | 322 | 10 |
Swell 3 Height (m) Direction Period (s) | E 15 | E 15 | NNE 9 | E 13 | SW 7 | E 19 | SW 7 | WSW 7 | NNE 9 | NNE 9 | NNE 9 | ENE 17 | NNE 9 | WSW 7 | N 9 | N 9 | N 9 | N 9 | SE 9 | SE 10 | N 8 | N 8 |
| kJ | 41 | 69 | 28 | 121 | 23 | 192 | 24 | 35 | 29 | 29 | 28 | 404 | 27 | 86 | 24 | 24 | 24 | 23 | 13 | 24 | 11 | 5 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | WSW 8 | WSW 8 | WSW 8 | WSW 8 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 128 | 181 | 207 | 253 |
Nearest Offshore or Glassy | ||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 237 | 237 | 237 | 237 | 237 | 237 | 237 | 237 | 237 | 2056 | 2056 | 2063 | 2063 | 1491 | 2059 |
Best forecast wave conditions in Saipan | ||||||||||||||||||||||
Best forecast wave conditions in Northern Mariana Islands | ||||||||||||||||||||||
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