
Surf Forecasts:
Tank Beach surf forecast from 5 Aug 2026:
- Most powerful swell: Friday 7 Aug, 1AM (local time) - 7ft (2.2m), 13s period, NW swell with 1,569 kJ wave energy.
Best Forecast Surf Conditions for Tank Beach this week:
The most powerful waves expected at Tank Beach in the next 16 days are 2.2m 13s and forecast to arrive on Friday (Aug 07) at 1AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 4.5m 11s period and expected on Monday (Aug 10) at 1PM.
| Wave Type | Time (ChST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 1AM (Fri 7th Aug) | 7ft (2.2m) 13s |
Table - best surf conditions forecast for Tank Beach over the next 16 days.
Short Range ForecastHeavy rain (total 45mm), heaviest during Thu afternoon. Warm (max 29°C on Thu morning, min 28°C on Thu afternoon). Winds increasing (light winds from the WNW on Thu night, strong winds from the W by Fri night). | Days 4-6 Weather SummaryHeavy rain (total 62mm), heaviest during Tue morning. Warm (max 29°C on Sun morning, min 27°C on Mon morning). Mainly near gales. | ||||||||||||||||||||
Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | |||||||||||||||
AM | 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) | NNW 12 | NW 12 | NW 13 | NW 13 | NW 12 | NW 11 | NW 11 | ENE 14 | ENE 12 | ENE 12 | NW 13 | NW 14 | NE 11 | NE 11 | NE 10 | NNE 10 | NNE 10 | NE 9 | NE 12 | SE 10 | NE 11 |
Wave Graph | |||||||||||||||||||||
782 | 747 | 1569 | 825 | 457 | 273 | 205 | 493 | 403 | 247 | 604 | 671 | 77 | 58 | 37 | 64 | 52 | 22 | 37 | 37 | 37 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross-off | off |
High Tide | 3:02PM0.58m | 00:21AM0.73m | 5:00PM0.63m | 1:01AM0.74m | 6:14PM0.67m | 1:53AM0.75m | 7:03PM0.71m | 7:42PM0.73m | 8:16PM0.74m | 5:04AM0.77m | 8:46PM0.74m | ||||||||||
Low Tide | 6:22PM0.55m | 8:32AM0.16m | 7:35PM0.61m | 9:29AM0.09m | 9:06PM0.65m | 10:26AM0.03m | 10:28PM0.67m | 11:21AM-0.00m | 11:35PM0.66m | 12:13PM-0.02m | 00:34AM0.64m | 1:03PM0.00m | 1:28AM0.60m | ||||||||
6:00 | — | — | 6:00 | — | — | 6:00 | — | — | 6:00 | — | — | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — | |
— | 6:45 | — | — | 6:44 | — | — | 6:44 | — | — | 6:44 | — | — | 6:43 | — | — | 6:43 | — | — | 6:42 | — | |
mm | 2 | 11 | 12 | 5 | 2 | 3 | 3 | 3 | 4 | 1 | 3 | 6 | 4 | 5 | 17 | 11 | 7 | 8 | 2 | 3 | 3 |
Temp °C | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 27 | 28 | 28 | 28 | 28 | 29 | 29 | 29 | 29 |
Feels °C | 30 | 30 | 30 | 29 | 28 | 28 | 28 | 28 | 28 | 27 | 27 | 27 | 24 | 25 | 24 | 24 | 24 | 27 | 26 | 27 | 27 |
Swell 1 Height (m) Direction Period (s) | NNW 12 | NW 12 | NW 13 | NW 13 | NW 12 | NW 11 | NW 11 | ENE 14 | ENE 12 | NW 12 | NW 13 | NW 14 | WNW 14 | NE 11 | NE 10 | NNE 10 | NNE 10 | NE 9 | SE 10 | SE 10 | SE 10 |
782 | 747 | 1569 | 825 | 457 | 273 | 205 | 493 | 403 | 597 | 604 | 671 | 1291 | 58 | 37 | 64 | 52 | 22 | 37 | 37 | 37 | |
Swell 2 Height (m) Direction Period (s) | ENE 10 | ENE 10 | W 8 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | NW 13 | NW 12 | ENE 12 | NE 12 | NE 11 | NE 11 | SE 9 | SE 12 | SE 12 | SE 11 | SE 11 | NE 12 | NE 12 | NE 11 |
130 | 157 | 367 | 190 | 212 | 198 | 166 | 418 | 379 | 247 | 135 | 104 | 77 | 3 | 21 | 21 | 19 | 30 | 37 | 22 | 31 | |
Swell 3 Height (m) Direction Period (s) | SE 10 | SSE 9 | ENE 10 | SSE 9 | SE 9 | ENE 15 | NE 14 | SE 10 | SE 10 | SE 10 | SE 10 | SE 9 | SE 9 | SE 11 | E 11 | ENE 12 | ENE 12 | NE 12 | NNE 9 | NNE 9 | N 9 |
24 | 48 | 148 | 32 | 21 | 84 | 200 | 25 | 15 | 15 | 14 | 13 | 13 | 5 | 2 | 14 | 14 | 22 | 16 | 8 | 6 | |
Wind waves Height (m) Direction Period (s) | W 8 | W 8 | — | W 10 | W 10 | W 10 | W 10 | W 10 | W 10 | W 10 | W 11 | W 11 | W 10 | W 11 | W 11 | W 12 | W 12 | W 11 | W 11 | W 11 | W 12 |
461 | 499 | — | 876 | 1223 | 1225 | 1460 | 1379 | 1820 | 1954 | 2265 | 2547 | 2804 | 4470 | 5007 | 4125 | 5759 | 4119 | 4469 | 4063 | 4232 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 242 | 2063 | 242 | 2056 | 2059 | 2059 | 2056 | 2061 | 2056 | 2056 | 2059 | 2056 | 2056 | 2059 | 2056 | 2056 | 2060 | 2056 | 2056 | 2056 | 2056 |
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)
Latest Updates
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.











