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Surf Forecasts:
Tank Beach surfForecast / Saipan / Northern Mariana Islands
48hr Weather and Surf, issued 3 pm Sunday 31 May 2026 ChSTForecast update in hr min s Forecast update imminent
Tank Beach surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Tank Beach sea temperature is
28.9° C
(Which is normal for this time of year)How big are the waves at Tank Beach today (31 May):
- Afternoon surf: Afternoon surf (31 May, local time) - 4ft (1.2m), 10s period with E swell.
- Evening surf: Evening surf (31 May, local time) - 4.5ft (1.3m), 10s period with E swell.
The current surf forecast for Tank Beach at 8PM is: 1.3m 10s primary swell from a East direction and 0.7m 11s secondary swell from a Northeast direction (forecast issued at 03:00pm May 31). An open ocean swell of 0.7m 9s is not directed at the surf break. The wind direction is predicted to be cross-onshore.
| Time (ChST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (31 May) | - | - |
| Afternoon (31 May) | 4ft (1.2m) | 10s |
| Evening (31 May) | 4.5ft (1.3m) | 10s |
Table - waves today at Tank Beach. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 8mm), mostly falling on Tue night. Warm (max 28°C on Sun afternoon, min 27°C on Sun night). Wind will be generally light. | ||||||||||||||||||||||||
Sun 31 | Monday 1 | Tuesday 2 | Wed 3 | |||||||||||||||||||||
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 | 1 AM | 4 AM | 7 AM | 10 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | ENE 9 | E 9 | |
320 | 273 | 314 | 273 | 267 | 267 | 256 | 212 | 212 | 207 | 207 | 212 | 212 | 207 | 207 | 198 | 198 | 164 | 169 | 169 | 165 | 165 | 211 | 165 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | |
High Tide | 9:47PM0.70m | 5:46AM0.69m | 10:32PM0.71m | 6:17AM0.68m | 11:18PM0.71m | 6:49AM0.68m | ||||||||||||||||||
Low Tide | 2:00AM0.64m | 2:07PM0.07m | 2:47AM0.64m | 2:46PM0.07m | 3:35AM0.64m | |||||||||||||||||||
 | |  |  | | | | | | | | | | | |  | | |  | | | |  | | |
 | — | — | — | — | — | 5:45 | — | — | — | — | — | — | — | 5:45 | — | — | — | — | — | — | — | 5:45 | — | — |
 | — | 6:43 | — | — | — | — | — | — | — | 6:43 | — | — | — | — | — | — | — | 6:44 | — | — | — | — | — | 6:44 |
— | — | 1 | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 3 | 1 | — | |
Temp °C | 28 | 28 | 28 | 28 | 27 | 27 | 27 | 28 | 27 | 28 | 28 | 28 | 27 | 27 | 27 | 27 | 27 | 28 | 28 | 28 | 27 | 27 | 27 | 27 |
28 | 28 | 29 | 28 | 28 | 28 | 28 | 30 | 28 | 29 | 30 | 29 | 29 | 29 | 30 | 30 | 30 | 32 | 31 | 31 | 30 | 29 | 29 | 29 | |
Swell 1 Height (m) Direction Period (s) | NE 11 | NE 11 | W 9 | W 9 | W 10 | W 10 | E 9 | E 9 | E 9 | W 10 | E 9 | W 11 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | ENE 9 | E 9 |
 kJ | 126 | 126 | 83 | 110 | 141 | 162 | 256 | 212 | 212 | 202 | 207 | 182 | 212 | 207 | 207 | 198 | 198 | 164 | 169 | 169 | 165 | 165 | 211 | 165 |
Swell 2 Height (m) Direction Period (s) | SW 8 | W 9 | NE 11 | NE 11 | NE 11 | NE 11 | W 10 | W 10 | W 10 | NNE 11 | W 11 | NNE 11 | W 11 | W 10 | W 10 | W 10 | W 10 | W 10 | W 10 | W 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 |
| kJ | 30 | 73 | 123 | 121 | 121 | 121 | 159 | 122 | 158 | 76 | 229 | 75 | 178 | 133 | 125 | 68 | 68 | 96 | 67 | 110 | 123 | 123 | 121 | 121 |
Swell 3 Height (m) Direction Period (s) | W 8 | SW 9 | SW 8 | SW 8 | SW 8 | SW 8 | NE 11 | NE 11 | NE 11 | ESE 11 | NNE 11 | SE 11 | NE 10 | NE 10 | NE 10 | NE 10 | NE 10 | NE 10 | WNW 11 | NE 10 | NE 10 | NE 10 | WSW 7 | WSW 7 |
| kJ | 35 | 37 | 34 | 33 | 32 | 23 | 96 | 94 | 94 | 12 | 75 | 19 | 52 | 50 | 48 | 48 | 47 | 46 | 42 | 33 | 33 | 23 | 5 | 5 |
Wind waves Height (m) Direction Period (s) | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | — | — | — | E 9 | — | E 9 | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 320 | 273 | 314 | 273 | 267 | 267 | — | — | — | 207 | — | 212 | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 1491 | 1491 | 1491 | 1491 | 1491 | 1491 | 1491 | 1575 | 1575 | 1575 | 1504 | 2056 | 227 | 227 | 227 | 227 | 227 | 227 | 227 | 227 | 227 | 227 | 227 | 227 |
Best forecast wave conditions in Saipan | ||||||||||||||||||||||||
Best forecast wave conditions in Northern Mariana Islands | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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