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 Monday 20 Oct 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 29.6° C
(Which is slightly warmer than usual)

How big are the waves at Tank Beach today?

The current surf forecast for Tank Beach at 12PM is: 2.2m 8s primary swell from a East-northeast direction and 0.6m 12s secondary swell from a North direction, 0.5m 14s secondary swell from a North-northeast direction (forecast issued at 09:00am October 20). The wind direction is predicted to be cross-onshore.

Time (ChST) & Date	Wave Height	Wave Period
Morning (20 Oct)	6ft (1.8m)	8s
Afternoon (20 Oct)	8ft (2.5m)	8s
Evening (20 Oct)	7.5ft (2.3m)	8s

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

	Monday 20						Tuesday 21								Wednesday 22								Thu 23
	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	2	0	0	0	1	2	1	1	1	0	0	0	0	0	0	0	0	0
Swell Height Map See all maps
Wave Height (m) & direction (?)	ENE	ENE	ENE	ENE	E	E	NNE	NNE	NNE	NNE	NNE	NNE	NNE	NNE	NNE	NNE	NNE	NNE	NNE	NNE	NNE	E	E	E
Period(s) (?)	8	8	8	8	8	8	12	12	12	12	11	11	11	11	11	10	10	10	10	10	10	9	9	9
Wave Graph (?)
kJ (?)	717	416	651	773	789	682	614	603	623	512	469	412	404	404	346	320	260	255	212	212	204	225	235	229
Wind (km/h)	E	E	E	ESE	SE	SE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	SE	ESE	ESE	ESE	ESE	ESE	ESE	E	E	E	E
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross- on	cross- on	cross- on	cross	cross	cross	cross	cross- on	cross	cross	cross	cross	cross	cross	cross	cross- on	cross- on	cross	cross	cross- on	cross- on	cross- on	cross- on	cross- on
High Tide / height (m)	6:47AM 0.64				6:15PM 0.68					7:46AM 0.66			6:31PM 0.68					8:42AM 0.67			6:46PM 0.67
Low Tide / height (m)			12:23PM 0.43					1:04AM 0.27				1:05PM 0.48				1:34AM 0.21				1:47PM 0.52				2:07AM 0.17

	Monday 20						Tuesday 21								Wednesday 22								Thu 23
Sunrise	6:09	-	-	-	-	-	-	-	6:09	-	-	-	-	-	-	-	6:09	-	-	-	-	-	-	-
Sunset	-	-	-	5:53	-	-	-	-	-	-	-	5:52	-	-	-	-	-	-	-	5:52	-	-	-	-

Rain (mm)	6	8	7	5	2	-	-	3	2	2	1	1	1	1	2	3	-	-	-	-	1	3	-	-
Temp. °C	29	29	29	27	26	28	28	28	29	28	28	28	29	29	29	29	29	29	29	29	29	29	28	28
Feels °C (?)	29	30	29	24	24	27	29	28	29	28	30	31	32	32	32	30	30	30	31	32	32	30	28	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 Cross-shore wind has turned cross-on at Tank Beach (light winds from the ESE at Saipan International Airport 19 km from Tank Beach). 1.8m 7s swell from the ENE with a 0.4m 12s groundswell from the NNE. 2 swells combining to make bigger set waves.
2 hours 9 minutes ago Tank Beach

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19 km away, 2 h 9 min ago

19 km/h

ESE

0.0

29.6

Air / Water (°C)

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