Oiso Jetty Surf Forecast

/ Kanagawa (21 surf breaks) /

Japan (129 surf breaks) / Lat Long: (35.28° N 139.23° E)

Surf Forecasts:

Oiso Jetty surfForecast / Kanagawa / Japan

48hr Weather and Surf, issued 2 pm Wednesday 17 Sep 2025 JST

Forecast update in hr min s Forecast update imminent

Oiso Jetty surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.

Today's Oiso Jetty sea temperature is 26.5° C
(Which is slightly warmer than usual)

How big are the waves at Oiso Jetty today?

The current surf forecast for Oiso Jetty at 8PM is: 0.9m 5s primary swell from a South-southwest direction and 0.1m 10s secondary swell from a Southeast direction, 0.1m 8s secondary swell from a South direction (forecast issued at 02:00pm September 17). The wind direction is predicted to be cross-offshore.

Time (JST) & Date	Wave Height	Wave Period
Morning (17 Sep)	-	-
Afternoon (17 Sep)	2.5ft (0.7m)	4s
Evening (17 Sep)	3ft (0.9m)	5s

Table - waves today at Oiso Jetty. (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								Saturday 20
	12 PM	3 PM	6 PM	9 PM	0 AM	3 AM	6 AM	9 AM	12 PM	3 PM	6 PM	9 PM	0 AM	3 AM	6 AM	9 AM	12 PM	3 PM	6 PM	9 PM	0 AM	3 AM	6 AM	9 AM
Rating (10 max)	0	0	0	0	0	0	0	0	0	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0
Swell Height Map See all maps
Wave Height (m) & direction (?)	ESE	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSE	SSE	E	SSW	ESE	SE	SE	SE	SE	ESE
Period(s) (?)	10	4	5	5	5	5	6	6	6	6	6	6	6	6	9	9	8	6	12	9	9	13	9	5
Wave Graph (?)
kJ (?)	10	18	32	36	33	31	36	41	38	64	73	60	31	12	9	8	5	4	13	3	3	6	3	3
Wind (km/h)	SSW	SSW	WSW	WSW	WSW	WSW	W	WSW	SW	SSW	NE	NE	NE	NE	NE	NE	NE	NNE	NNE	NE	N	NNE	N	NNW
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross	cross	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross	glass	cross	cross	cross	cross	cross	cross	cross	cross- off	cross- off	cross	cross- off	cross- off	cross- off	glass
High Tide / height (m)			3:40PM 1.30			1:05AM 1.22					3:53PM 1.34			2:24AM 1.31					4:09PM 1.38				3:18AM 1.39
Low Tide / height (m)				8:46PM 1.07				8:35AM 0.32					9:16PM 0.93				9:19AM 0.29				9:43PM 0.78

	Wednesday 17				Thursday 18								Friday 19								Saturday 20
Sunrise	-	-	-	-	-	-	5:26	-	-	-	-	-	-	-	5:26	-	-	-	-	-	-	-	5:28	-
Sunset	-	5:47	-	-	-	-	-	-	-	5:46	-	-	-	-	-	-	-	5:45	-	-	-	-	-	-

Rain (mm)	-	-	-	-	-	-	-	-	-	-	1	3	4	3	4	1	2	2	3	2	1	-	1	1
Temp. °C	31	32	29	28	27	27	27	29	32	33	29	24	23	23	22	22	21	22	20	21	21	21	21	21
Feels °C (?)	34	35	32	31	31	31	31	32	35	37	31	24	23	23	22	22	20	22	20	21	22	21	22	23

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 Kanagawa

Wind Update Continuing clean conditions at Oiso Jetty (light winds from the SW at Mubeyama wx 21 km from Oiso Jetty). 0.9m 5s windswell from the SSW with a 0.3m 10s swell from the SE. 2 swells combining to make bigger set waves.
1 hour 10 minutes ago Oiso Jetty

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21 km away, 1 h 10 min ago

10 km/h

0.0

26.5

Air / Water (°C)

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