Tank Beach surfForecast / Saipan / Northern Mariana Islands

information circle48hr Weather and Surf, issued 9 am Sunday 17 May 2026 ChST
Forecast 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
28.7° C
(Which is normal for this time of year)

How big are the waves at Tank Beach today?

The current surf forecast for Tank Beach at 6PM is: 2.1m 9s primary swell from a East direction and 0.3m 9s secondary swell from a North-northeast direction (forecast issued at 09:00am May 17). The wind direction is predicted to be cross-onshore.

Time (ChST) & DateWave HeightWave Period
Morning (17 May)7.5ft (2.3m)9s
Afternoon (17 May)7ft (2.2m)9s
Evening (17 May)7ft (2.1m)9s

Table - waves today at Tank Beach. (Swell directed towards the surf break)


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Light rain (total 5mm), mostly falling on Tue morning. Warm (max 28°C on Sun morning, min 27°C on Sun morning). Mainly fresh winds.

Sunday
17
Monday
18
Tuesday
19
Wed
20
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
1 AM
4 AM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
2.3
E
9
2.3
E
9
2.3
E
9
2.2
E
9
2.1
E
9
2.1
E
9
2
E
9
2.1
E
9
2
E
9
2
E
9
2
E
9
2.1
E
9
2.2
E
9
2.2
E
9
2.3
E
9
2.2
E
9
2.2
E
9
2.2
E
9
2.2
E
9
2.2
E
9
2.2
E
9
2.1
E
9
2.1
E
9
2.2
E
9
Wave Graph
Metric surfscale
Energy kJ
861
880
880
840
766
766
695
766
680
678
678
732
803
788
885
810
818
836
836
810
800
731
747
800
Wind (km/h)
35
E
35
E
30
E
25
E
25
E
30
ENE
30
E
30
E
30
E
30
E
30
E
30
E
30
E
30
E
30
E
30
ENE
35
ENE
35
ENE
35
E
30
E
30
E
35
E
30
E
35
E
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
High Tide
5:53AM0.76m
9:48PM0.77m
6:30AM0.76m
10:52PM0.78m
7:11AM0.76m
11:54PM0.79m
Low Tide
1:48PM-0.02m
2:21AM0.66m
2:38PM-0.06m
3:24AM0.68m
3:30PM-0.06m
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
part cloud
part cloud
clear
clear
clear
part cloud
clear
part cloud
clear
thunderstorm
part cloud
thunderstorm
thunderstorm
clear
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:47
5:47
5:47
5:47
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:37
6:38
6:38
6:38
1
1
1
1
Temp °C
27
27
28
28
27
28
28
28
27
28
28
28
28
28
27
27
27
27
28
28
28
28
28
27
25
25
28
28
27
28
27
26
26
28
27
28
28
28
25
26
26
26
27
28
28
28
27
26
Swell 1
Height (m)
Direction
Period (s)
0.3
NNE
9
0.3
NNE
9
0.3
NNE
9
0.3
NNE
9
2.1
E
9
0.3
NNE
9
0.3
NNE
9
0.3
NNE
9
0.3
NNE
9
0.3
NNE
9
0.2
NNE
9
0.2
NNE
9
0.2
NNE
9
0.3
NNE
9
0.3
NNE
9
0.3
NNE
9
0.3
NNE
9
0.3
NNE
9
0.3
NNE
9
0.3
NNE
9
0.2
NNE
9
0.3
NNE
9
0.2
NNE
9
0.2
NNE
9
Energy kJ
17
16
16
15
766
15
15
15
16
16
8
8
8
16
16
16
16
15
16
16
8
16
8
7
Swell 2
Height (m)
Direction
Period (s)
0.3
NNE
9
0.3
NNE
9
0.2
N
7
0.2
N
7
0.2
N
7
0.2
N
7
0.1
N
11
0.2
NNE
11
0.2
NNE
11
Energy kJ
16
15
4
4
4
4
2
12
11
Swell 3
Height (m)
Direction
Period (s)
Energy kJ
Wind waves
Height (m)
Direction
Period (s)
2.3
E
9
2.3
E
9
2.3
E
9
2.2
E
9
2.1
E
9
2
E
9
2.1
E
9
2
E
9
2
E
9
2
E
9
2.1
E
9
2.2
E
9
2.2
E
9
2.3
E
9
2.2
E
9
2.2
E
9
2.2
E
9
2.2
E
9
2.2
E
9
2.2
E
9
2.1
E
9
2.1
E
9
2.2
E
9
Energy kJ
861
880
880
840
766
695
766
680
678
678
732
803
788
885
810
818
836
836
810
800
731
747
800
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
Distance (km)
2056
2056
2219
2061
2219
2075
2056
2056
2056
2056
2056
2061
2056
2056
2056
2056
2056
2056
2060
2060
2060
2057
1491
1491
Best forecast wave conditions in Saipan
Rating
(10 max)
Best forecast wave conditions in Northern Mariana Islands
Rating
(10 max)
Header Global
Rating
(10 max)
5
5
4
4
6
9
9
7
4
4
5
7
5
4
5
4
4
4
4
5
5
4
4
5
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder

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