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Surf Forecasts:

Santos (Hachijojima Island) surfForecast / Izu Islands / Japan

information circle12 Day Weather and Surf, issued 2 am Sunday 11 Jan 2026 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
21.0° C
 (Which is 1.5°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 Saturday (Jan 17) at 12AM. The primary swell is predicted to be 0.6m and 13s period with a secondary swell of 0.4m and 10s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Santos (Hachijojima Island) in the next 12 days are 1.3m 9s and forecast to arrive on Sunday (Jan 18) at 9AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 6.0m 11s period and expected on Sunday (Jan 11) at 6PM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+)12AM (Sat 17th Jan)2ft (0.6m) 13s
Best Surf 9AM (Sun 18th Jan)4.5ft (1.3m) 9s
Most Powerful 9AM (Sun 18th Jan)4.5ft (1.3m) 9s

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

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table

Short Range Forecast Heavy rain (total 39mm), heaviest during Sun morning. Very mild (max 17°C on Tue afternoon, min 6°C on Sun night). Winds decreasing (severe gales from the WNW on Sun afternoon, moderate winds from the W by Mon afternoon).

Days 3-6 Weather Summary Light rain (total 4mm), mostly falling on Thu night. Very mild (max 17°C on Thu night, min 9°C on Wed afternoon). Winds decreasing (near gales from the WNW on Wed afternoon, light winds from the WNW by Fri night).

Sunday
11
Monday
12
Tuesday
13
Wednesday
14
Thursday
15
Friday
16
Saturday
17
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.2
E
0.6
S
0.2
E
0.1
NE
0.4
NE
0.4
NE
0.5
NE
0.5
NE
0.4
NE
0.4
NE
0.4
NE
0.4
NE
0.4
NE
0.4
NE
0.4
NE
0.4
NE
0.4
NE
0.6
NE
0.5
NE
0.5
NE
0.4
NE
Period(s) (?)13712171615141414131313121212121413121211
Wave
Graph
(?)Metric surfscale
Energy kJ (?)143312126679102100674544585453373969106726944
Wind
(km/h)
55
WSW
75
WNW
65
WNW
50
WNW
45
W
40
WSW
50
WSW
50
W
45
WNW
50
WNW
55
WNW
40
WNW
35
WNW
30
WSW
45
WSW
30
NW
35
WNW
20
WNW
20
WNW
35
WNW
55
WNW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off		offoffoffoffcross-
off		cross-
off		cross-
off		offoffoffoffoffcross-
off		cross-
off		offoffoffoffoffoff
High Tide
/ height (m)
10:23AM
1.33
11:40PM
1.00
10:58AM
1.30
2:42AM
0.98
11:46AM
1.25
4:15AM
1.04
12:57PM
1.20
4:57AM
1.11
2:13PM
1.18
5:27AM
1.16
3:11PM
1.20
5:54AM
1.19
3:57PM
1.25
Low Tide
/ height (m)
5:40PM
0.66
4:25AM
0.86
7:06PM
0.56
5:16AM
0.95
8:20PM
0.41
7:18AM
1.00
9:16PM
0.25
9:11AM
0.97
10:01PM
0.11
10:07AM
0.90
10:40PM
-0.00
10:44AM
0.83
11:15PM
-0.08
Sunday
11
Monday
12
Tuesday
13
Wednesday
14
Thursday
15
Friday
16
Saturday
17
Sunrise6:43--6:43--6:43--6:43--6:43--6:43--6:43--
Sunset-4:52--4:52--4:52--4:53--4:54--4:55--4:57-
heavy rain
light rain
cloud
part cloud
clear
light rain
mod rain
rain showers
light rain
clear
clear
clear
clear
part cloud
rain showers
rain showers
clear
clear
clear
clear
clear
Rain (mm)
251---1642-----31-----
Temp. °C14878916161715111011121617161515161515
Feels °C (?)4-9-10-4-16677-1-3268810791284
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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View detailed surf forecast for Santos (Hachijojima Island) at:
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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.

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