Surf Forecasts:
Tank Beach surf forecast from 21 Jul 2026:
- Best quality surf: Tuesday 21 Jul, 10PM (local time) - 2ft (0.6m), 9s period, E swell with cross-offshore winds.
- Most powerful swell: Friday 24 Jul, 10AM (local time) - 2ft (0.6m), 10s period, SE swell with 84 kJ wave energy.
- Next surfable swell (1★+): Tuesday 21 Jul, 10PM (local time) - 2ft (0.6m), 9s period with E 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 Tuesday (Jul 21) at 10PM. The primary swell is predicted to be 0.6m and 9s period. 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 0.6m 10s and forecast to arrive on Friday (Jul 24) at 10AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 8s period and expected on Friday (Jul 24) at 1AM.
| Wave Type | Time (ChST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Tue 21st Jul) | 2ft (0.6m) 9s |
| Best Surf | 10PM (Tue 21st Jul) | 2ft (0.6m) 9s |
| Most Powerful | 10AM (Fri 24th Jul) | 2ft (0.6m) 10s |
Table - best surf conditions forecast for Tank Beach over the next 16 days.
Short Range ForecastLight rain (total 3mm), mostly falling on Tue night. Warm (max 29°C on Thu afternoon, min 27°C on Wed night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 4mm), mostly falling on Sat morning. Warm (max 28°C on Fri afternoon, min 27°C on Fri night). Wind will be generally light. | |||||||||||||||||||
Tue 21 | Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | Monday 27 | ||||||||||||||
PM | 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) | SE 10 | SE 11 | SE 10 | SE 10 | SE 10 | SE 9 | SE 11 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | E 9 | SE 9 | SE 10 | SE 10 |
Wave Graph  | ||||||||||||||||||||
 kJ | 47 | 72 | 67 | 61 | 60 | 43 | 71 | 64 | 84 | 82 | 82 | 80 | 80 | 61 | 57 | 45 | 38 | 23 | 23 | 24 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-off | off | cross-on | glassy | cross | cross | cross-off | cross-on | glassy | glassy | glassy | cross-off | cross | cross-on | cross-on | cross-on | on | cross-on |
High Tide | 00:48AM0.72m | 4:02PM0.55m | 1:12AM0.71m | 5:56PM0.59m | 1:39AM0.70m | 6:54PM0.62m | 2:12AM0.69m | 7:32PM0.65m | 8:05PM0.66m | 8:36PM0.67m | ||||||||||
Low Tide | 6:11PM0.47m | 8:35AM0.27m | 6:48PM0.54m | 9:22AM0.22m | 7:40PM0.59m | 10:06AM0.17m | 9:02PM0.62m | 10:48AM0.14m | 10:20PM0.63m | 11:29AM0.11m | 11:20PM0.63m | 12:09PM0.09m | 00:09AM0.63m | |||||||
 |  | | |  | |  | |  |  | | | | | | |  | |  | | |
 | — | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — |
 | 6:50 | — | — | 6:50 | — | — | 6:50 | — | — | 6:49 | — | — | 6:49 | — | — | 6:49 | — | — | 6:49 | — |
mm | — | 1 | — | — | — | — | — | 2 | — | 1 | — | 2 | — | — | — | — | 1 | — | 1 | 2 |
Temp °C | 28 | 28 | 28 | 28 | 28 | 28 | 29 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 29 | 28 |
Feels °C | 31 | 32 | 32 | 33 | 33 | 33 | 33 | 32 | 32 | 32 | 31 | 33 | 32 | 32 | 32 | 32 | 31 | 30 | 32 | 30 |
Swell 1 Height (m) Direction Period (s) | E 9 | E 9 | SW 7 | SW 7 | SW 7 | SW 8 | SW 8 | WSW 8 | SW 8 | WSW 8 | WSW 8 | WSW 8 | WSW 8 | WSW 8 | WSW 8 | WSW 8 | WSW 10 | WSW 10 | WSW 9 | WSW 8 |
| kJ | 41 | 59 | 25 | 33 | 54 | 45 | 59 | 78 | 64 | 86 | 78 | 59 | 58 | 62 | 58 | 58 | 116 | 105 | 70 | 38 |
Swell 2 Height (m) Direction Period (s) | SW 7 | SW 7 | SE 10 | SE 10 | SE 10 | SE 9 | SE 11 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | E 9 | ENE 8 | ENE 8 | ENE 8 |
| kJ | 24 | 27 | 67 | 61 | 60 | 43 | 71 | 64 | 84 | 82 | 82 | 80 | 80 | 61 | 57 | 45 | 38 | 23 | 22 | 22 |
Swell 3 Height (m) Direction Period (s) | SE 10 | SE 11 | E 9 | E 9 | E 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 8 | ENE 8 | ENE 8 | NE 8 | E 9 | ENE 9 | SE 9 | SE 9 | SE 10 | SE 10 |
| kJ | 47 | 72 | 40 | 40 | 40 | 30 | 44 | 44 | 42 | 49 | 40 | 28 | 26 | 18 | 39 | 26 | 23 | 23 | 23 | 24 |
Wind waves Height (m) Direction Period (s) | ESE 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | NE 7 | E 4 | E 4 | E 5 |
| kJ | 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 7 | 7 | 8 | 17 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 2216 | 242 | 0 | 0 | 237 | 0 | 237 | 237 | 0 | 1491 | 0 | 0 | 0 | 0 | 243 | 243 | 243 | 2220 | 2220 | 2067 |
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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