Surf Forecasts:
How big are the waves at Tank Beach today (19 Aug):
- Morning surf: Morning surf (19 Aug, local time) - 2ft (0.6m), 8s period with NNE swell.
- Afternoon surf: Afternoon surf (19 Aug, local time) - 4.5ft (1.3m), 5s period with NE swell.
- Evening surf: Evening surf (19 Aug, local time) - 4.5ft (1.3m), 6s period with NE swell.
The current surf forecast for Tank Beach at 2PM is: 1.2m 5s primary swell from a Northeast direction and 0.4m 10s secondary swell from a Southeast direction (forecast issued at 09:00am August 19). An open ocean swell of 1.0m 9s is not directed at the surf break. The wind direction is predicted to be onshore.
| Time (ChST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (19 Aug) | 2ft (0.6m) | 8s |
| Afternoon (19 Aug) | 4.5ft (1.3m) | 5s |
| Evening (19 Aug) | 4.5ft (1.3m) | 6s |
Table - waves today at Tank Beach. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 39mm), heaviest during Thu morning. Warm (max 29°C on Wed morning, min 29°C on Wed morning). Wind will be generally light. | ||||||||||||||||||||||
Wednesday 19 | Thursday 20 | Friday 21 | ||||||||||||||||||||
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 | 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 8 | NNE 8 | NE 5 | NE 6 | NE 6 | NE 6 | NE 6 | NE 6 | NE 6 | NE 6 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | ESE 13 | ESE 12 | ESE 11 | ESE 10 | ESE 10 |
Wave Graph  | ||||||||||||||||||||||
 kJ | 47 | 47 | 47 | 127 | 137 | 124 | 116 | 147 | 152 | 149 | 158 | 144 | 144 | 144 | 128 | 128 | 131 | 238 | 322 | 319 | 326 | 326 |
Wind (km/h) | ||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | on | on | on | on | on | on | on | cross-on | cross-on | on | on | cross-on | cross-on | cross-on | cross | cross-on | glassy | glassy | on | glassy |
High Tide | 2:04PM0.57m | 11:30PM0.68m | 4:00PM0.59m | 11:58PM0.67m | 5:27PM0.61m | |||||||||||||||||
Low Tide | 6:43AM0.26m | 5:38PM0.54m | 7:35AM0.23m | 6:24PM0.58m | 8:28AM0.20m | 7:38PM0.61m | ||||||||||||||||
 | | | |  | | | | | | | | | | | |  | | | |  |  | |
 | 6:01 | — | — | — | — | — | — | 6:01 | — | — | — | — | — | — | — | 6:01 | — | — | — | — | — | — |
 | — | — | — | 6:37 | — | — | — | — | — | — | — | 6:37 | — | — | — | — | — | — | — | 6:37 | — | — |
mm | 2 | 1 | 2 | 2 | 3 | 1 | 4 | 3 | 4 | 5 | 3 | 3 | 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 | 29 | 29 |
Feels °C | 31 | 30 | 30 | 31 | 31 | 31 | 30 | 30 | 30 | 31 | 31 | 31 | 32 | 32 | 32 | 33 | 34 | 34 | 35 | 34 | 33 | 34 |
Swell 1 Height (m) Direction Period (s) | W 8 | W 8 | W 9 | W 9 | W 9 | W 9 | W 8 | W 8 | W 8 | W 9 | W 9 | WSW 9 | WSW 9 | WSW 8 | WSW 8 | NE 7 | NE 7 | NE 7 | ESE 12 | ESE 11 | ESE 10 | ESE 10 |
| kJ | 171 | 171 | 145 | 145 | 145 | 117 | 115 | 112 | 115 | 79 | 81 | 79 | 58 | 57 | 55 | 128 | 131 | 118 | 322 | 319 | 326 | 326 |
Swell 2 Height (m) Direction Period (s) | NNE 8 | NNE 8 | SE 10 | SE 10 | SE 10 | SE 10 | NE 8 | SE 10 | SE 9 | WSW 9 | WSW 8 | W 9 | W 9 | W 9 | W 8 | WSW 8 | WSW 8 | ESE 13 | NE 8 | NE 9 | NE 8 | NE 8 |
| kJ | 47 | 47 | 34 | 35 | 35 | 35 | 31 | 24 | 23 | 58 | 55 | 57 | 56 | 54 | 52 | 55 | 54 | 238 | 156 | 123 | 102 | 86 |
Swell 3 Height (m) Direction Period (s) | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | SE 10 | E 9 | E 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 11 | W 8 | ESE 13 | WSW 8 | W 10 | W 9 | W 9 | W 9 |
| kJ | 14 | 14 | 14 | 6 | 6 | 6 | 34 | 14 | 6 | 43 | 21 | 21 | 21 | 21 | 30 | 37 | 102 | 55 | 67 | 60 | 40 | 39 |
Wind waves Height (m) Direction Period (s) | NE 2 | NE 3 | NE 5 | NE 6 | NE 6 | NE 6 | NE 6 | NE 6 | NE 6 | NE 6 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | — | — | — | — | — | — | — |
| kJ | 1 | 6 | 47 | 127 | 137 | 124 | 116 | 147 | 152 | 149 | 158 | 144 | 144 | 144 | 128 | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||
Distance (km) | 2102 | 2216 | 2216 | 1491 | 2241 | 2231 | 2228 | 227 | 2102 | 2228 | 1491 | 2214 | 227 | 227 | 227 | 227 | 229 | 227 | 0 | 0 | 227 | 0 |
Best forecast wave conditions in Saipan | ||||||||||||||||||||||
Best forecast wave conditions in Northern Mariana Islands | ||||||||||||||||||||||
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