Osaki Surf Forecast

/ Kanagawa (21 surf breaks) /

Japan (129 surf breaks) / Lat Long: (35.29° N 139.56° E)

Surf Forecasts:

Osaki surfForecast / Kanagawa / Japan

12 Day Weather and Surf, issued 2 pm Sunday 26 Oct 2025 JST

Forecast update in hr min s Forecast update imminent

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

Today's Osaki sea temperature is 23.9° C
(Which is 1.3°C warmer than normal for this time of year)

Best Forecast Surf Conditions for Osaki this week:

The surf forecast for Osaki over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Oct 27) at 3AM. The primary swell is predicted to be 0.8m and 8s period. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Osaki in the next 12 days are 1.9m 6s and forecast to arrive on Sunday (Nov 02) at 9PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Saturday (Nov 01) at 12AM.

Wave Type	Time (JST) & Date	Wave Height & Period
Next good surf (1 star+)	3AM (Mon 27th Oct)	2.5ft (0.8m) 8s
Best Surf	3AM (Mon 27th Oct)	2.5ft (0.8m) 8s
Most Powerful	9PM (Sun 2nd Nov)	6ft (1.9m) 6s

Table - best surf conditions forecast for Osaki over the next 12 days.

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Short Range Forecast Light rain (total 9mm), mostly falling on Sun afternoon. Very mild (max 19°C on Sun night, min 13°C on Tue night). Wind will be generally light.											Days 3-6 Weather Summary Heavy rain (total 45mm), heaviest during Fri night. Very mild (max 18°C on Thu afternoon, min 13°C on Wed night). Winds decreasing (strong winds from the N on Fri afternoon, calm by Sat morning).
	Sun 26		Monday 27			Tuesday 28			Wednesday 29			Thursday 30			Friday 31			Saturday 01
	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	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
Swell Height Map See all maps
Wave Height (m) & direction (?)	SSE	SE	SE	SE	SE	ESE	ESE	ESE	SE	SE	SE	ESE	ESE	SE	SE	SE	ESE	SE	SE	SSW	E
Period(s) (?)	7	8	9	9	10	10	10	10	10	10	8	11	11	9	10	11	11	9	9	4	10
Wave Graph (?)
kJ (?)	26	70	88	43	26	11	10	10	4	4	3	12	44	20	37	40	22	27	26	16	50
Wind (km/h)	NNE	N	N	E	N	NNE	ENE	NE	NNE	NE	NNE	NNE	NE	NNE	NNE	N	N	ENE	SSW	SSW	WSW
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	off	glass	off	cross- off	off	off	cross- off	off	off	cross- off	off	off	cross- off	off	off	off	cross- off	cross- off	on	on	cross- on
High Tide / height (m)		6:31PM 1.51	9:21AM 1.37		7:03PM 1.46	10:29AM 1.32		7:42PM 1.39	11:46AM 1.30		8:40PM 1.29		12:54PM 1.31	10:24PM 1.20		1:41PM 1.33	12:29AM 1.19		2:17PM 1.35	2:02AM 1.25
Low Tide / height (m)		1:56AM 0.15		1:54PM 1.11	2:44AM 0.23		2:47PM 1.15		3:41AM 0.32	4:15PM 1.16		4:49AM 0.41		6:13PM 1.09	6:06AM 0.49		7:33PM 0.96	7:18AM 0.55		8:23PM 0.80	8:19AM 0.60

	Sun 26		Monday 27			Tuesday 28			Wednesday 29			Thursday 30			Friday 31			Saturday 01
Sunrise	-	-	5:56	-	-	5:58	-	-	5:58	-	-	6:00	-	-	6:01	-	-	6:01	-	-	6:03
Sunset	4:53	-	-	4:52	-	-	4:52	-	-	4:51	-	-	4:50	-	-	4:49	-	-	4:47	-	-

Rain (mm)	3	-	-	1	2	-	-	3	-	-	-	-	-	-	1	15	29	-	-	4	-
Temp. °C	17	19	19	19	19	17	19	14	14	15	15	16	18	17	16	14	16	17	18	19	21
Feels °C (?)	15	18	17	16	18	12	16	10	9	10	9	11	15	14	10	7	12	17	19	18	16

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 Osaki (light winds from the N at Zushi Kanagawa 1 km from Osaki). 0.7m 8s swell from the SE to make surfable waves.
21 hours 10 minutes ago Osaki

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FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Osaki 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.

Information about the Osaki Surf forecast

The above surf forecast table for Osaki provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Osaki can be found by selecting the local surf guide option on the grey menu. Our Osaki surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Osaki) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for Osaki may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

Osaki is 2 km (1 miles) from the city of Zushi. If you plan a holiday in Kanagawa, look for hotels and other accommodation in Zushi. Zushi has rooms for a wide range of budgets as well as car hire and transport links.