Surf Forecasts:
Tank Beach surf forecast from 15 Sep 2026:
- Best quality surf: Wednesday 16 Sep, 7PM (local time) - 6ft (1.8m), 9s period, NE swell with cross-offshore winds.
- Most powerful swell: Tuesday 22 Sep, 10PM (local time) - 5ft (1.5m), 13s period, NNW swell with 737 kJ wave energy.
- Next surfable swell (1★+): Wednesday 16 Sep, 7PM (local time) - 6ft (1.8m), 9s period with NE swell.
Best Forecast Surf Conditions for Tank Beach this week:
The surf forecast for Tank Beach over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Sep 16) at 7PM. The primary swell is predicted to be 1.8m and 9s period with a secondary swell of 0.8m and 13s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Tank Beach in the next 16 days are 1.5m 13s and forecast to arrive on Tuesday (Sep 22) at 10PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 8s period and expected on Friday (Sep 18) at 10PM.
| Wave Type | Time (ChST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7PM (Wed 16th Sep) | 6ft (1.8m) 9s |
| Best Surf | 7PM (Wed 16th Sep) | 6ft (1.8m) 9s |
| Most Powerful | 10PM (Tue 22nd Sep) | 5ft (1.5m) 13s |
Table - best surf conditions forecast for Tank Beach over the next 16 days.
Short Range ForecastHeavy rain (total 52mm), heaviest during Tue night. Warm (max 29°C on Tue night, min 29°C on Tue night). Wind will be generally light. | Days 5-7 Weather SummarySome drizzle, heaviest during Fri night. Warm (max 29°C on Fri night, min 28°C on Fri night). Wind will be generally light. | ||||||||||||||||||
Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | ||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||
Wave Height (m) Direction Period (s) | NE 8 | ENE 9 | NE 9 | NE 8 | NE 8 | NE 8 | NE 12 | NNE 10 | NNE 10 | NNE 9 | N 9 | N 9 | N 9 | NNW 10 | NNW 9 | NNW 10 | NNW 10 | NNW 13 | NNW 12 |
Wave Graph  | |||||||||||||||||||
 kJ | 523 | 666 | 537 | 367 | 283 | 256 | 683 | 374 | 320 | 181 | 133 | 164 | 176 | 193 | 180 | 304 | 314 | 630 | 464 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | cross | cross-off | cross-off | cross-off | cross-off | off | off | off | off | off | off | cross-off | cross-off | cross | glassy | cross-off | cross-off |
High Tide | 12:24PM0.63m | 9:44PM0.66m | 1:52PM0.62m | 10:08PM0.65m | 3:20PM0.63m | 10:38PM0.64m | 4:27PM0.64m | 11:24PM0.63m | 5:13PM0.65m | 00:33AM0.62m | 5:45PM0.66m | 1:53AM0.62m | |||||||
Low Tide | 4:53AM0.21m | 4:46PM0.56m | 5:41AM0.20m | 5:37PM0.59m | 6:33AM0.19m | 6:46PM0.61m | 7:30AM0.19m | 8:11PM0.61m | 8:27AM0.19m | 9:25PM0.60m | 9:20AM0.19m | 10:18PM0.59m | |||||||
 |  | | |  |  |  | | | | | | | | | | | | | |
 | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — |
 | — | — | 6:17 | — | — | 6:16 | — | — | 6:15 | — | — | 6:15 | — | — | 6:15 | — | — | 6:14 | — |
mm | 36 | 9 | 3 | 3 | — | — | — | 1 | — | 1 | — | — | — | — | — | — | — | — | — |
Temp °C | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 28 | 29 | 29 |
Feels °C | 31 | 32 | 34 | 33 | 31 | 30 | 30 | 30 | 29 | 31 | 31 | 32 | 33 | 34 | 34 | 33 | 32 | 32 | 32 |
Swell 1 Height (m) Direction Period (s) | NE 8 | ENE 9 | NE 9 | NE 8 | NE 8 | NE 8 | NE 12 | NNE 10 | NNE 10 | WSW 8 | WSW 8 | N 9 | N 9 | NNW 10 | NNW 9 | NNW 10 | NNW 10 | NNW 13 | NNW 12 |
| kJ | 523 | 666 | 537 | 367 | 283 | 256 | 683 | 374 | 320 | 147 | 150 | 164 | 176 | 193 | 161 | 304 | 314 | 630 | 464 |
Swell 2 Height (m) Direction Period (s) | ENE 14 | ENE 13 | ENE 13 | ENE 12 | ENE 12 | WSW 8 | SSW 8 | SW 8 | SW 9 | NNE 9 | N 9 | WSW 8 | WSW 8 | NE 11 | NE 10 | NE 10 | NE 12 | NE 11 | ENE 11 |
| kJ | 293 | 198 | 195 | 138 | 98 | 45 | 105 | 84 | 152 | 181 | 133 | 120 | 86 | 159 | 180 | 145 | 232 | 233 | 196 |
Swell 3 Height (m) Direction Period (s) | SSE 9 | S 8 | S 8 | SW 8 | SW 8 | ENE 12 | ENE 11 | ENE 12 | NE 11 | NE 11 | NE 11 | NE 10 | NE 10 | WSW 8 | SW 8 | SW 8 | SW 8 | SW 7 | SW 7 |
| kJ | 79 | 50 | 34 | 44 | 55 | 94 | 12 | 117 | 126 | 119 | 94 | 84 | 90 | 84 | 65 | 60 | 57 | 44 | 44 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | W 3 | — | S 7 | W 4 | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | 1 | — | 36 | 8 | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 237 | 237 | 242 | 0 | 242 | 237 | 237 | 0 | 2063 | 0 | 0 | 0 | 0 | 0 | 0 | 237 | 0 | 0 | 0 |
Best forecast wave conditions in Saipan | |||||||||||||||||||
Best forecast wave conditions in Northern Mariana Islands | |||||||||||||||||||
Header Global | |||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Tank Beach surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Information about the Tank Beach Surf forecast
The above surf forecast table for Tank Beach provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Tank Beach can be found by selecting the local surf guide option on the grey menu. Our Tank Beach surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Tank Beach) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Tank Beach may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Tank Beach is 19 km (12 miles) from Saipan. If you plan a holiday in Saipan, look for hotels and other accommodation in Saipan. Saipan has rooms for a wide range of budgets as well as car hire and transport links.
Nearest