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Surf Forecasts:
Tank Beach surfForecast / Saipan / Northern Mariana Islands
48hr Weather and Surf, issued 3 am 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
28.8° C
(Which is normal for this time of year)How big are the waves at Tank Beach today (31 May):
- Morning surf: Morning surf (31 May, local time) - 4ft (1.2m), 10s period with E swell.
- Afternoon surf: Afternoon surf (31 May, local time) - 4ft (1.2m), 10s period with E swell.
- Evening surf: Evening surf (31 May, local time) - 4ft (1.2m), 10s period with E swell.
The current surf forecast for Tank Beach at 7AM is: 1.2m 10s primary swell from a East direction and 0.7m 12s secondary swell from a Northeast direction (forecast issued at 03:00am May 31). An open ocean swell of 0.7m 8s 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) | 4ft (1.2m) | 10s |
| Afternoon (31 May) | 4ft (1.2m) | 10s |
| Evening (31 May) | 4ft (1.2m) | 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 3mm), mostly falling on Sun night. Warm (max 28°C on Sun morning, min 27°C on Sun night). Wind will be generally light. | ||||||||||||||||||||||||
Sunday 31 | Monday 1 | Tuesday 2 | ||||||||||||||||||||||
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 | 1 PM | 4 PM | 7 PM | 10 PM | |
Swell Height Map |    |    |    | |||||||||||||||||||||
E 10 | E 10 | E 10 | E 10 | E 10 | 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 | |
279 | 279 | 279 | 273 | 273 | 273 | 268 | 273 | 267 | 267 | 257 | 251 | 207 | 202 | 202 | 202 | 207 | 207 | 207 | 198 | 164 | 164 | 164 | 169 | |
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 | cross-on | cross | cross-on | cross-on | |
High Tide | 5:19AM0.69m | 9:47PM0.70m | 5:46AM0.69m | 10:32PM0.71m | 6:17AM0.68m | |||||||||||||||||||
Low Tide | 1:10AM0.62m | 1:30PM0.08m | 2:00AM0.64m | 2:07PM0.07m | 2:47AM0.64m | 2:46PM0.07m | ||||||||||||||||||
 |  |  | | | | | | | | | | | | | | | |  | | | | | | |
 | — | 5:45 | — | — | — | — | — | — | — | 5:45 | — | — | — | — | — | — | — | 5:45 | — | — | — | — | — | — |
 | — | — | — | — | — | 6:43 | — | — | — | — | — | — | — | 6:43 | — | — | — | — | — | — | — | 6:44 | — | — |
1 | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | 1 | 1 | — | — | — | — | — | |
Temp °C | 27 | 27 | 27 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 27 | 28 | 28 | 28 | 28 | 28 | 27 | 27 | 27 | 27 | 28 | 28 | 28 | 28 |
28 | 28 | 28 | 29 | 28 | 29 | 29 | 29 | 29 | 29 | 28 | 29 | 29 | 30 | 30 | 30 | 29 | 30 | 29 | 29 | 31 | 30 | 31 | 31 | |
Swell 1 Height (m) Direction Period (s) | WSW 9 | NE 12 | NE 12 | NE 11 | NE 11 | NE 11 | NE 11 | W 9 | W 10 | W 10 | W 10 | W 10 | E 9 | E 9 | W 11 | W 11 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 |
 kJ | 111 | 137 | 137 | 133 | 126 | 126 | 123 | 110 | 138 | 162 | 159 | 94 | 207 | 202 | 182 | 182 | 207 | 207 | 207 | 198 | 164 | 164 | 164 | 169 |
Swell 2 Height (m) Direction Period (s) | NE 11 | WSW 9 | WSW 8 | W 8 | SW 8 | W 9 | W 9 | NE 11 | NE 11 | NE 11 | NE 11 | NE 11 | W 10 | W 10 | NE 11 | NNE 11 | W 11 | W 10 | W 10 | W 10 | W 10 | W 9 | W 10 | WNW 11 |
| kJ | 133 | 79 | 73 | 51 | 30 | 73 | 83 | 121 | 121 | 121 | 96 | 94 | 123 | 202 | 90 | 75 | 178 | 162 | 125 | 68 | 68 | 41 | 47 | 123 |
Swell 3 Height (m) Direction Period (s) | SE 11 | SW 8 | SW 9 | SW 9 | W 8 | SW 9 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | W 13 | NE 11 | NE 11 | SW 7 | SE 11 | NE 10 | NE 10 | NE 10 | NE 10 | NE 10 | W 11 | W 11 | NE 10 |
| kJ | 20 | 23 | 28 | 27 | 35 | 37 | 34 | 33 | 32 | 23 | 16 | 81 | 94 | 92 | 8 | 19 | 52 | 50 | 48 | 48 | 47 | 64 | 64 | 33 |
Wind waves Height (m) Direction Period (s) | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 9 | — | — | E 9 | E 9 | — | — | — | — | — | — | — | — |
| kJ | 279 | 279 | 279 | 273 | 273 | 273 | 268 | 273 | 267 | 267 | 257 | 251 | — | — | 202 | 202 | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 249 | 249 | 1575 | 249 | 249 | 1491 | 1491 | 1491 | 1491 | 1491 | 1491 | 1491 | 1491 | 1491 | 1491 | 1491 | 227 | 227 | 227 | 227 | 227 | 227 | 227 | 227 |
Best forecast wave conditions in Saipan | ||||||||||||||||||||||||
Best forecast wave conditions in Northern Mariana Islands | ||||||||||||||||||||||||
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