Surf Forecasts:
Tank Beach surf forecast from 8 Sep 2026:
- Best quality surf: Saturday 12 Sep, 10AM (local time) - 2.5ft (0.8m), 13s period, ENE swell with cross-offshore winds.
- Most powerful swell: Tuesday 15 Sep, 7AM (local time) - 4.5ft (1.3m), 13s period, ENE swell with 578 kJ wave energy.
- Next surfable swell (1★+): Saturday 12 Sep, 10AM (local time) - 2.5ft (0.8m), 13s period with ENE 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 Saturday (Sep 12) at 10AM. The primary swell is predicted to be 0.8m and 13s period with a secondary swell of 0.7m and 9s. 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 1.3m 13s and forecast to arrive on Tuesday (Sep 15) at 7AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 10s period and expected on Wednesday (Sep 09) at 7AM.
| Wave Type | Time (ChST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10AM (Sat 12th Sep) | 2.5ft (0.8m) 13s |
| Best Surf | 10AM (Sat 12th Sep) | 2.5ft (0.8m) 13s |
| Most Powerful | 7AM (Tue 15th Sep) | 4.5ft (1.3m) 13s |
Table - best surf conditions forecast for Tank Beach over the next 16 days.
Short Range ForecastHeavy rain (total 40mm), heaviest during Tue night. Warm (max 29°C on Tue night, min 28°C on Thu night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 9mm), mostly falling on Fri night. Warm (max 29°C on Sat afternoon, min 28°C on Fri night). Wind will be generally light. | ||||||||||||||||||
Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | ||||||||||||||
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) | NNE 12 | NNE 12 | NNE 12 | ENE 7 | ENE 8 | ENE 8 | E 14 | E 13 | E 14 | ENE 14 | ENE 13 | ENE 13 | ENE 13 | E 12 | ENE 12 | ENE 12 | ENE 12 | NE 10 | ENE 13 |
Wave Graph  | |||||||||||||||||||
 kJ | 119 | 111 | 107 | 99 | 181 | 172 | 195 | 176 | 253 | 247 | 236 | 229 | 361 | 319 | 318 | 232 | 228 | 177 | 225 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | cross-on | cross-on | cross-on | cross-on | on | on | cross-on | cross-off | cross-off | cross | cross | cross | cross | cross | cross-on | cross-on |
High Tide | 4:11AM0.72m | 7:16PM0.72m | 5:23AM0.71m | 7:39PM0.71m | 6:31AM0.71m | 8:01PM0.71m | 7:37AM0.69m | 8:22PM0.70m | 8:44AM0.67m | 8:42PM0.70m | 9:53AM0.65m | 9:03PM0.69m | |||||||
Low Tide | 11:38PM0.59m | 11:52AM0.10m | 00:27AM0.53m | 12:39PM0.15m | 1:13AM0.47m | 1:23PM0.22m | 1:57AM0.40m | 2:04PM0.30m | 2:41AM0.34m | 2:44PM0.38m | 3:24AM0.28m | 3:23PM0.45m | |||||||
 |  | | |  | | |  | | | | |  | | | | | |  | |
 | — | 6:03 | — | — | 6:03 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — |
 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:21 | — | — | 6:20 | — | — | 6:19 | — |
mm | 13 | 6 | 2 | 7 | 6 | 2 | 3 | — | 1 | 4 | 3 | — | 1 | — | — | 1 | — | — | — |
Temp °C | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 28 | 28 | 29 | 28 | 29 | 29 | 28 | 28 | 29 | 29 |
Feels °C | 32 | 30 | 31 | 31 | 31 | 32 | 32 | 33 | 33 | 31 | 31 | 32 | 31 | 32 | 32 | 31 | 31 | 33 | 31 |
Swell 1 Height (m) Direction Period (s) | WNW 10 | WNW 10 | WNW 9 | WNW 9 | WNW 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 9 | ENE 13 | ENE 13 | ENE 13 | E 12 | ENE 12 | ENE 12 | ENE 12 | NE 10 | NE 9 |
| kJ | 301 | 235 | 185 | 143 | 96 | 172 | 149 | 128 | 105 | 106 | 236 | 229 | 361 | 319 | 318 | 232 | 228 | 177 | 202 |
Swell 2 Height (m) Direction Period (s) | NNE 12 | NNE 12 | NNE 12 | NNE 11 | E 14 | WNW 8 | E 14 | E 13 | E 14 | ENE 14 | ENE 9 | ENE 9 | NNE 9 | NNE 8 | NNE 8 | NE 8 | NE 9 | E 11 | ENE 13 |
| kJ | 119 | 111 | 107 | 69 | 136 | 72 | 195 | 176 | 253 | 247 | 80 | 80 | 43 | 54 | 51 | 59 | 95 | 166 | 225 |
Swell 3 Height (m) Direction Period (s) | ENE 9 | ENE 9 | ENE 9 | ENE 8 | NNE 11 | E 14 | W 8 | W 8 | W 8 | W 7 | W 7 | W 7 | W 7 | W 7 | SE 8 | SSE 8 | SSE 8 | ENE 14 | SSE 8 |
| kJ | 46 | 27 | 25 | 41 | 40 | 134 | 64 | 43 | 41 | 27 | 25 | 25 | 15 | 15 | 18 | 26 | 38 | 107 | 37 |
Wind waves Height (m) Direction Period (s) | ENE 4 | ENE 5 | ENE 6 | ENE 7 | ENE 8 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 6 | 35 | 58 | 99 | 181 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 2213 | 2213 | 2213 | 227 | 227 | 227 | 227 | 1491 | 2063 | 227 | 0 | 0 | 227 | 233 | 230 | 227 | 227 | 227 | 227 |
Best forecast wave conditions in Saipan | |||||||||||||||||||
Best forecast wave conditions in Northern Mariana Islands | |||||||||||||||||||
Header Global | |||||||||||||||||||
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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.
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