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Surf Forecasts:
Tank Beach surfForecast / Saipan / Northern Mariana Islands
16 Day Weather and Surf, issued 3 am Monday 13 Apr 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
28.0° C
(Which is normal for this time of year)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 Monday (Apr 13) at 4PM. The primary swell is predicted to be 5.5m and 16s period with a secondary swell of 3.5m and 9s. The wind is predicted to be onshore as the swell arrives.
The most powerful waves expected at Tank Beach in the next 16 days are 15.5m 16s and forecast to arrive on Tuesday (Apr 14) at 10AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 12.5m 12s period and expected on Tuesday (Apr 14) at 10PM.
| Wave Type | Time (ChST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4PM (Mon 13th Apr) | 18ft (5.5m) 16s |
| Best Surf | 4PM (Mon 13th Apr) | 18ft (5.5m) 16s |
| Most Powerful | 10AM (Tue 14th Apr) | 51ft (15.5m) 16s |
Table - best surf conditions forecast for Tank Beach over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range Forecast Heavy rain (total 486mm), heaviest during Tue morning. Warm (max 28°C on Tue afternoon, min 26°C on Mon night). Winds increasing (near gales from the NE on Mon morning, extremely windy from the NE by Tue morning). | Days 3-6 Weather Summary Moderate rain (total 10mm), heaviest on Sat afternoon. Warm (max 28°C on Thu afternoon, min 27°C on Thu morning). Winds decreasing (gales from the SW on Thu morning, light winds from the SW by Sat afternoon). | ||||||||||||||||||||
Monday 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | Sunday 19 | |||||||||||||||
| AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Rating (10 max) | |||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
| Wave Height (m) & direction (?) | |||||||||||||||||||||
| Period(s) (?) | 14 | 16 | 16 | 16 | 14 | 10 | 13 | 13 | 11 | 10 | 10 | 13 | 12 | 13 | 13 | 13 | 13 | 12 | 11 | 11 | 11 |
Wave (?)Graph  | |||||||||||||||||||||
 kJ (?) | 6522 | 13803 | 34288 | 115456 | 29842 | 117 | 0 | 0 | 44 | 49 | 47 | 184 | 155 | 4722 | 3997 | 3446 | 2890 | 1613 | 989 | 828 | 669 |
Wind (km/h) | |||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | on | on | on | on | cross- on | cross- off | cross- off | off | off | off | off | off | off | off | off | off | off | off | off | cross- off | glass |
High Tide / height (m) | |||||||||||||||||||||
Low Tide / height (m) | |||||||||||||||||||||
Monday 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | Sunday 19 | |||||||||||||||
| Sunrise | 6:03 | - | - | 6:03 | - | - | 6:03 | - | - | 6:01 | - | - | 6:01 | - | - | 6:01 | - | - | 6:00 | - | - |
| Sunset | - | 6:30 | - | - | 6:30 | - | - | 6:30 | - | - | 6:30 | - | - | 6:30 | - | - | 6:30 | - | - | 6:30 | - |
 | |  | | | | | | | | | |  | |  |  | | | | |  | |
Rain (mm) | 5 | 4 | 51 | 141 | 45 | 78 | 96 | 53 | 13 | 2 | 1 | 1 | - | - | 1 | - | 2 | 3 | - | - | - |
| Temp. °C | 27 | 27 | 27 | 26 | 28 | 27 | 26 | 27 | 27 | 27 | 28 | 28 | 27 | 27 | 27 | 28 | 28 | 27 | 27 | 27 | 27 |
| Feels °C (?) | 22 | 21 | 19 | 4 | 24 | 16 | 5 | 15 | 16 | 20 | 24 | 25 | 25 | 26 | 27 | 29 | 29 | 29 | 30 | 30 | 32 |
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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.
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