Santos (Hachijojima Island) surfForecast / Izu Islands / Japan

information circle16 Day Weather and Surf, issued 8 pm Monday 11 May 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
22.9° C
(Which is 1.7°C warmer than normal for this time of year)

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

The most powerful waves expected at Santos (Hachijojima Island) in the next 16 days are 2.3m 10s and forecast to arrive on Sunday (May 17) at 12PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 6s period and expected on Monday (May 18) at 6AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful12PM (Sun 17th May)7.5ft (2.3m) 10s

Table - best surf conditions forecast for Santos (Hachijojima Island) over the next 16 days.


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Heavy rain (total 20mm), heaviest during Wed night. Warm (max 20°C on Tue afternoon, min 18°C on Mon night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Warm (max 20°C on Thu night, min 19°C on Fri afternoon). Mainly strong winds.

Tuesday
12
Wednesday
13
Thursday
14
Friday
15
Saturday
16
Sunday
17
Mon
18
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Rating
(10 max)
0
0
0
1
1
0
2
0
1
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.9
ESE
9
1.9
ESE
9
1.8
ESE
9
1.8
ESE
9
1.9
ESE
9
1.8
ESE
9
1.9
ESE
10
1.6
E
10
1.6
E
10
1.5
E
10
1.5
E
9
1.5
E
9
1.3
E
6
1.7
E
9
1.8
E
7
1.7
E
7
2.2
ESE
10
2.4
ESE
10
2.2
E
10
1.7
E
9
1.4
ESE
9
Wave Graph
Metric surfscale
Energy kJ
553
573
537
488
579
577
696
480
464
408
405
397
122
430
315
311
917
1065
891
484
300
Wind (km/h)
20
ESE
25
ENE
20
E
15
ENE
10
ENE
20
SSE
10
SSW
20
E
15
ENE
20
E
25
E
25
E
20
E
30
E
30
E
30
E
40
E
40
E
40
E
35
ESE
35
ESE
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross-on
cross-on
cross-on
cross-on
on
on
on
on
on
cross-on
on
on
on
on
High Tide
1:57AM1.27m
1:32PM1.15m
2:28AM1.33m
2:52PM1.25m
2:57AM1.38m
3:56PM1.35m
3:26AM1.43m
4:53PM1.44m
3:55AM1.46m
5:47PM1.49m
4:26AM1.48m
6:39PM1.49m
4:59AM1.48m
Low Tide
7:59AM0.80m
7:46PM0.59m
8:45AM0.60m
8:43PM0.64m
9:27AM0.36m
9:35PM0.68m
10:09AM0.12m
10:23PM0.74m
10:50AM-0.09m
11:07PM0.80m
11:32AM-0.23m
11:48PM0.87m
12:15PM-0.29m
clear
clear
part cloud
rain showers
thunderstorm
thunderstorm
thunderstorm
thunderstorm
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
cloud
cloud
light rain
light rain
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:43
4:43
4:41
4:41
4:41
4:39
4:39
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:29
6:30
6:30
6:30
6:31
6:32
6:32
6:34
2
2
4
9
3
4
3
5
Temp °C
18
19
20
20
20
20
20
20
20
20
20
20
19
20
20
20
20
20
20
20
20
13
15
17
18
20
18
20
18
19
18
17
17
16
17
16
16
15
15
14
16
17
Swell 1
Height (m)
Direction
Period (s)
1.9
ESE
9
1.9
ESE
9
1.8
ESE
9
1.8
ESE
9
1.9
ESE
9
1.8
ESE
9
1.9
ESE
10
1.6
E
10
1.6
E
10
1.5
E
10
0.6
ESE
10
0.5
SE
9
0.8
ENE
9
0.4
SE
11
0.3
NE
9
0.5
ENE
8
0.1
S
8
2.4
ESE
10
2.2
E
10
1.7
E
9
1.4
ESE
9
Energy kJ
553
573
537
488
579
577
696
480
464
408
61
42
110
29
13
40
1
1065
891
484
300
Swell 2
Height (m)
Direction
Period (s)
0.1
NE
14
0.4
NE
11
0.4
NE
10
0.4
NE
10
0.2
NNE
9
0.4
NE
11
0.4
NE
10
0.4
NE
10
0.4
NE
10
0.4
NE
10
0.4
NE
10
0.3
SE
11
0.4
ESE
9
0.3
NE
9
0.2
SSE
10
0.3
SE
10
Energy kJ
7
31
27
23
8
31
26
25
24
24
24
19
32
13
10
17
Swell 3
Height (m)
Direction
Period (s)
0.1
N
14
0.1
N
8
0.1
N
7
0.1
NE
13
0.1
S
7
0.1
S
7
0.1
S
7
0.2
SSE
11
0.2
SSE
12
0.3
SE
11
0.3
NE
9
0.4
SE
11
0.1
SE
14
0.3
NE
9
Energy kJ
4
1
1
7
1
1
1
12
14
20
14
30
7
14
Wind waves
Height (m)
Direction
Period (s)
1.5
E
9
1.5
E
9
1.3
E
6
1.7
E
9
1.8
E
7
1.7
E
7
2.2
ESE
10
1.3
NNE
6
1.3
NNE
6
Energy kJ
405
397
122
430
315
311
917
119
149
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
2
1
2
2
1
2
1
1
1
1
1
1
2
2
3
3
1
Distance (km)
196
191
191
191
204
191
196
204
191
204
191
191
196
191
191
191
204
191
204
204
191
Best forecast wave conditions in Izu Islands
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
2
1
Best forecast wave conditions in Japan
Rating
(10 max)
2
2
2
2
2
2
2
2
2
2
2
1
2
2
1
2
2
2
3
3
2
Header Global
Rating
(10 max)
4
5
9
8
9
6
6
5
5
5
5
5
5
5
4
5
5
4
4
4
6
  • 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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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 16 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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