Tank Beach Surf Forecast

/ Saipan (2 surf breaks) /

Northern Mariana Islands (2 surf breaks)

Surf Forecasts:

Tank Beach surfForecast / Saipan / Northern Mariana Islands

48hr Weather and Surf, issued 9 am Wednesday 17 Sep 2025 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 29.7° 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 10AM is: 0.8m 10s primary swell from a East direction and 0.5m 9s secondary swell from a Southeast direction (forecast issued at 09:00am September 17). An open ocean swell of 0.5m 4s is not directed at the surf break. The wind direction is predicted to be cross-shore.

Time (ChST) & Date	Wave Height	Wave Period
Morning (17 Sep)	2.5ft (0.8m)	10s
Afternoon (17 Sep)	2.5ft (0.8m)	9s
Evening (17 Sep)	2.5ft (0.7m)	9s

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

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Wednesday 17						Thursday 18								Friday 19								Sat 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	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
Swell Height Map See all maps
Wave Height (m) & direction (?)	ENE	E	ENE	E	E	E	ENE	ENE	ENE	ENE	ENE	ENE	ESE	ESE	E	SE	SE	SE	SE	SE	ESE	ENE	ESE	ESE
Period(s) (?)	7	10	8	9	9	9	8	8	8	8	11	11	9	10	10	10	10	10	9	9	5	10	5	9
Wave Graph (?)
kJ (?)	53	117	61	96	96	74	57	40	40	38	40	40	52	63	35	33	33	33	31	28	33	33	27	77
Wind (km/h)	ESE	ESE	SE	SSE	S	SSW	S	SSE	SE	E	E	ENE	ENE	ENE	ENE	NE	ENE	E	ENE	ENE	NE	NE	ENE	ENE
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross- on	cross	cross	cross- off	cross- off	off	cross- off	cross- off	cross	cross- on	cross- on	on	on	on	on	on	on	cross- on	cross- on	on	on	on	on	cross- on
High Tide / height (m)					6:05PM 0.70			2:51AM 0.67					6:33PM 0.70				4:06AM 0.67				6:56PM 0.69
Low Tide / height (m)		9:56AM 0.11					10:52PM 0.60				10:49AM 0.13				11:38PM 0.56				11:37AM 0.16				12:19AM 0.51

	Wednesday 17						Thursday 18								Friday 19								Sat 20
Sunrise	6:05	-	-	-	-	-	-	-	6:05	-	-	-	-	-	-	-	6:05	-	-	-	-	-	-	-
Sunset	-	-	-	6:16	-	-	-	-	-	-	-	6:15	-	-	-	-	-	-	-	6:15	-	-	-	-

Rain (mm)	-	2	-	1	3	2	2	-	-	-	-	-	-	1	-	1	-	-	-	3	1	1	1	1
Temp. °C	28	28	29	28	28	28	27	26	27	28	28	28	28	28	28	28	28	29	29	28	28	28	28	28
Feels °C (?)	31	30	30	29	30	29	27	26	29	28	29	31	30	29	30	29	28	30	31	31	30	29	29	29

Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)

Recent Eyeball Surf Reports for Saipan

Wind Update Light wind has turned cross-on at Tank Beach (light winds from the ESE at Saipan Airport 18 km from Tank Beach). 0.7m 8s swell from the ENE with a 0.3m 11s groundswell, also from the ENE and a 0.3m 8s swell, also from the ENE as well as a 0.3m 2s local chop, also from the E. 4 swells combining to make bigger set waves.
40 minutes ago Tank Beach

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18 km away, 40 min ago

13 km/h

ESE

0.0

29.7

Air / Water (°C)

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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.