Surf Forecasts:
How big are the waves at Tank Beach today (18 Aug):
- Afternoon surf: Afternoon surf (18 Aug, local time) - 2ft (0.6m), 9s period with NNE swell.
- Evening surf: Evening surf (18 Aug, local time) - 2ft (0.6m), 9s period with NNE swell.
The current surf forecast for Tank Beach at 12AM is: 0.6m 9s primary swell from a North-northeast direction (forecast issued at 03:00pm August 17). An open ocean swell of 1.2m 8s is not directed at the surf break. The wind direction is predicted to be onshore.
| Time (ChST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Aug) | - | - |
| Afternoon (18 Aug) | 2ft (0.6m) | 9s |
| Evening (18 Aug) | 2ft (0.6m) | 9s |
Table - waves today at Tank Beach. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 15mm), heaviest on Tue night. Warm (max 29°C on Tue morning, min 28°C on Mon afternoon). Wind will be generally light. | ||||||||||||||||||||
Mon 17 | Tuesday 18 | Wednesday 19 | ||||||||||||||||||
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 9 | NNE 9 | NNE 9 | NNE 9 | NNE 9 | NNE 9 | NNE 9 | NNE 9 | NNE 9 | NNE 9 | NNE 9 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | SE 10 | SE 10 | N 8 | NNE 5 |
Wave Graph  | ||||||||||||||||||||
 kJ | 56 | 55 | 54 | 53 | 53 | 52 | 52 | 53 | 52 | 50 | 49 | 48 | 47 | 47 | 47 | 47 | 35 | 35 | 137 | 50 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | cross-off | on | on | cross-on | on | cross-on | on | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | on |
High Tide | 10:44PM0.71m | 12:18PM0.58m | 11:07PM0.70m | 2:04PM0.57m | ||||||||||||||||
Low Tide | 4:26PM0.41m | 5:51AM0.30m | 5:01PM0.48m | 6:43AM0.26m | 5:38PM0.54m | |||||||||||||||
 |  |  |  | | | | | |  |  | | | | | | | | | | |
 | — | — | — | — | — | 6:01 | — | — | — | — | — | — | — | 6:01 | — | — | — | — | — | — |
 | — | 6:38 | — | — | — | — | — | — | — | 6:38 | — | — | — | — | — | — | — | 6:37 | — | — |
mm | 1 | — | — | — | — | — | — | 2 | — | — | 1 | 1 | 1 | 3 | 1 | — | — | — | — | 1 |
Temp °C | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 29 | 29 | 29 | 29 | 28 | 29 | 29 | 29 | 29 | 29 | 29 | 29 |
Feels °C | 31 | 31 | 32 | 32 | 32 | 32 | 32 | 32 | 34 | 34 | 33 | 33 | 32 | 32 | 31 | 31 | 31 | 31 | 32 | 32 |
Swell 1 Height (m) Direction Period (s) | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 9 | W 9 | W 9 | W 9 | W 9 |
| kJ | 212 | 181 | 181 | 185 | 185 | 187 | 187 | 187 | 191 | 191 | 161 | 163 | 163 | 167 | 171 | 181 | 181 | 145 | 145 | 145 |
Swell 2 Height (m) Direction Period (s) | NNE 9 | NNE 9 | NNE 9 | NNE 9 | NNE 9 | NNE 9 | NNE 9 | NNE 9 | NNE 9 | NNE 9 | NNE 9 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NE 8 | NE 8 | SE 10 | SE 10 |
| kJ | 56 | 55 | 54 | 53 | 53 | 52 | 52 | 53 | 52 | 50 | 49 | 48 | 47 | 47 | 47 | 47 | 35 | 34 | 48 | 48 |
Swell 3 Height (m) Direction Period (s) | E 9 | E 9 | E 9 | E 8 | E 8 | E 9 | E 9 | E 8 | E 8 | E 8 | E 8 | E 9 | E 9 | E 9 | E 9 | E 9 | SE 10 | SE 10 | E 9 | E 9 |
| kJ | 24 | 23 | 24 | 13 | 13 | 23 | 23 | 12 | 12 | 12 | 13 | 25 | 25 | 25 | 25 | 25 | 33 | 35 | 14 | 14 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | NNE 3 | NNE 3 | N 4 | N 8 | NNE 5 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | 13 | 137 | 50 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 2231 | 227 | 227 | 227 | 227 | 237 | 242 | 242 | 237 | 237 | 2216 | 2216 | 2216 | 2216 | 2286 | 2237 | 2216 |
Best forecast wave conditions in Saipan | ||||||||||||||||||||
Best forecast wave conditions in Northern Mariana Islands | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
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