Surf Forecasts:
How big are the waves at Tank Beach today (18 Sep):
- Afternoon surf: Afternoon surf (18 Sep, local time) - 3ft (0.9m), 8s period with N swell.
- Evening surf: Evening surf (18 Sep, local time) - 2ft (0.6m), 11s period with ENE swell.
The current surf forecast for Tank Beach at 8PM is: 0.6m 11s primary swell from a East-northeast direction and 0.8m 8s secondary swell from a North direction (forecast issued at 03:00pm September 18). An open ocean swell of 1.1m 8s is not directed at the surf break, a second open ocean swell of 0.5m 4s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (ChST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Sep) | - | - |
| Afternoon (18 Sep) | 3ft (0.9m) | 8s |
| Evening (18 Sep) | 2ft (0.6m) | 11s |
Table - waves today at Tank Beach. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 17mm), heaviest on Sun night. Warm (max 29°C on Fri afternoon, min 29°C on Fri afternoon). Wind will be generally light. | ||||||||||||||||||||
Fri 18 | Saturday 19 | Sunday 20 | ||||||||||||||||||
1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | |
Swell Height Map |  |  |  |  |  |  |  |  | ||||||||||||
Wave Height (m) Direction Period (s) | NNE 10 | N 8 | ENE 11 | ENE 11 | ENE 11 | N 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NE 10 | NNW 8 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NE 10 | NE 10 |
Wave Graph  | ||||||||||||||||||||
 kJ | 201 | 95 | 79 | 78 | 82 | 76 | 79 | 87 | 93 | 119 | 122 | 125 | 128 | 134 | 221 | 235 | 235 | 196 | 188 | 181 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | off | off | off | off | off | off | off | glassy | glassy | glassy | glassy | on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 3:20PM0.63m | 10:38PM0.64m | 4:27PM0.64m | 11:24PM0.63m | 5:13PM0.65m | |||||||||||||||
Low Tide | 6:46PM0.61m | 7:30AM0.19m | 8:11PM0.61m | 8:27AM0.19m | 9:25PM0.60m | |||||||||||||||
 |  |  | |  |  |  | | | |  | | | | | | | | | | |
 | — | — | — | — | — | 6:05 | — | — | — | — | — | — | — | 6:05 | — | — | — | — | — | — |
 | — | 6:15 | — | — | — | — | — | — | — | 6:15 | — | — | — | — | — | — | — | 6:15 | — | — |
mm | — | 1 | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 2 | 2 | 1 |
Temp °C | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 |
Feels °C | 30 | 30 | 31 | 31 | 31 | 32 | 32 | 33 | 33 | 33 | 34 | 34 | 35 | 35 | 34 | 33 | 33 | 33 | 33 | 33 |
Swell 1 Height (m) Direction Period (s) | NNE 10 | N 8 | SW 8 | SW 8 | SW 8 | WSW 8 | WSW 8 | WSW 8 | WSW 8 | WSW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NE 10 | NE 10 |
| kJ | 201 | 95 | 166 | 162 | 162 | 147 | 147 | 147 | 126 | 123 | 122 | 125 | 128 | 134 | 221 | 235 | 235 | 192 | 188 | 181 |
Swell 2 Height (m) Direction Period (s) | SW 9 | SW 8 | N 7 | N 8 | N 8 | N 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | WSW 8 | WSW 8 | SW 8 | SW 8 | NE 11 | NE 11 | NE 10 | NE 10 | NNW 9 | NNW 9 |
| kJ | 132 | 97 | 70 | 74 | 76 | 76 | 79 | 87 | 93 | 119 | 123 | 123 | 100 | 100 | 191 | 187 | 177 | 196 | 180 | 148 |
Swell 3 Height (m) Direction Period (s) | ENE 11 | ENE 11 | ENE 11 | ENE 11 | ENE 11 | SSE 9 | SSE 8 | SSE 8 | SSE 8 | NE 10 | NE 10 | NE 10 | NE 10 | NE 9 | WSW 8 | WSW 8 | WSW 8 | WSW 8 | SW 8 | SW 8 |
| kJ | 49 | 85 | 79 | 78 | 82 | 44 | 64 | 58 | 37 | 85 | 84 | 80 | 115 | 81 | 86 | 86 | 84 | 84 | 64 | 62 |
Wind waves Height (m) Direction Period (s) | WSW 4 | WSW 4 | W 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 15 | 14 | 10 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 227 | 227 | 227 | 237 | 237 | 237 |
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.
Nearest