Santos (Hachijojima Island) Surf Forecast

/ Izu Islands (6 surf breaks) /

Japan (129 surf breaks)

Surf Forecasts:

Santos (Hachijojima Island) surfForecast / Izu Islands / Japan

12 Day Weather and Surf, issued 2 am Friday 19 Sep 2025 JST

Forecast update in hr min s Forecast update imminent

Santos (Hachijojima Island) surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.

Today's Santos (Hachijojima Island) sea temperature is 29.6° C
(Which is 2.5°C warmer than normal for this time of year)

Best Forecast Surf Conditions for Santos (Hachijojima Island) this week:

The surf forecast for Santos (Hachijojima Island) over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Sep 19) at 6AM. The primary swell is predicted to be 0.5m and 9s period. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Santos (Hachijojima Island) in the next 12 days are 3.0m 8s and forecast to arrive on Tuesday (Sep 23) at 6AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 5s period and expected on Sunday (Sep 21) at 6AM.

Wave Type	Time (JST) & Date	Wave Height & Period
Next good surf (1 star+)	6AM (Fri 19th Sep)	1.5ft (0.5m) 9s
Best Surf	6PM (Sun 21st Sep)	2.5ft (0.7m) 12s
Most Powerful	6AM (Tue 23rd Sep)	10ft (3.0m) 8s

Table - best surf conditions forecast for Santos (Hachijojima Island) over the next 12 days.

Updates in hr min s Forecast update imminent

12 Days Hourly

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	Short Range Forecast Moderate rain (total 13mm), heaviest on Fri morning. Warm (max 28°C on Sat afternoon, min 24°C on Sun night). Winds decreasing (strong winds from the ENE on Fri afternoon, light winds from the NW by Sun night).									Days 3-6 Weather Summary Light rain (total 2mm), mostly falling on Mon morning. Warm (max 26°C on Mon afternoon, min 24°C on Mon morning). Winds decreasing (strong winds from the ENE on Mon morning, moderate winds from the E by Wed night).
	Friday 19			Saturday 20			Sunday 21			Monday 22			Tuesday 23			Wednesday 24			Thursday 25
	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night
Rating (10 max)	0	0	0	0	0	0	0	0	1	0	0	0	0	0	0	0	0	0	0	0	1
Swell Height Map See all maps
Wave Height (m) & direction (?)	NNE	NE	ENE	ENE	ENE	NE	NE	NE	NE	NE	ENE	ENE	ENE	E	E	ENE	E	E	ESE	ESE	E
Period(s) (?)	6	8	7	7	7	14	13	13	12	6	7	8	8	8	8	8	8	8	8	8	8
Wave Graph (?)
kJ (?)	140	776	503	244	137	162	178	167	114	284	482	750	1222	1276	887	851	587	845	740	534	320
Wind (km/h)	NE	ENE	ENE	ESE	SSE	SW	WSW	W	NW	NE	NE	ENE	ENE	ENE	ENE	ENE	ENE	E	ESE	ESE	S
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross	cross- on	cross- on	on	cross- on	cross- off	cross- off	cross- off	off	cross- on	cross- on	cross- on	cross- on	cross- on	cross- on	cross- on	cross- on	cross- on	on	on	cross
High Tide / height (m)		4:50PM 1.47		3:45AM 1.58	5:08PM 1.56		4:29AM 1.65	5:26PM 1.64		5:08AM 1.69	5:43PM 1.70		5:44AM 1.69	5:58PM 1.74		6:18AM 1.66		6:12PM 1.74	6:54AM 1.61		6:26PM 1.72
Low Tide / height (m)	9:52AM 0.35		10:05PM 0.95	10:29AM 0.39		10:39PM 0.86	11:00AM 0.48		11:11PM 0.78	11:26AM 0.58		11:41PM 0.72	11:49AM 0.70		12:09AM 0.68		12:10PM 0.81	12:36AM 0.63		12:31PM 0.91	1:05AM 0.60

	Friday 19			Saturday 20			Sunday 21			Monday 22			Tuesday 23			Wednesday 24			Thursday 25
Sunrise	5:26	-	-	5:26	-	-	5:26	-	-	5:28	-	-	5:28	-	-	5:28	-	-	5:30	-	-
Sunset	-	5:42	-	-	5:40	-	-	5:39	-	-	5:37	-	-	5:37	-	-	5:36	-	-	5:34	-

Rain (mm)	3	1	3	3	2	-	-	-	1	2	-	-	-	-	-	-	-	-	-	-	-
Temp. °C	27	26	27	27	28	28	28	28	27	25	26	25	25	26	25	25	25	26	26	26	26
Feels °C (?)	27	22	26	26	29	28	27	29	29	21	21	19	19	21	19	19	20	23	25	25	26

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 Izu Islands

Wind Update Continuing clean conditions at Santos (Hachijojima Island) (calm at Hachijojima 8 km from Santos (Hachijojima Island)). 0.5m 9s swell from the ESE with a 0.3m 9s swell from the NE and a 0.2m 11s groundswell from the E. 3 swells combining to make bigger set waves.
1 hour 24 minutes ago Santos (Hachijojima Island)

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1 h 24 min ago

4 km/h

Clean

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Information about the Santos (Hachijojima Island) Surf forecast

The above surf forecast table for Santos (Hachijojima Island) provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Santos (Hachijojima Island) can be found by selecting the local surf guide option on the grey menu. Our Santos (Hachijojima Island) 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 (Santos (Hachijojima Island)) 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 Santos (Hachijojima Island) 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.

Santos (Hachijojima Island) is 192 km (119 miles) from Oshima. If you plan a holiday in Izu Islands, look for hotels and other accommodation in Oshima. Oshima has rooms for a wide range of budgets as well as car hire and transport links.