Santos (Hachijojima Island) surfForecast / Izu Islands / Japan

information circle16 Day Weather and Surf, issued 2 am Thursday 07 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 2.1°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 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (May 13) at 3PM. The primary swell is predicted to be 6.5m and 10s period with a secondary swell of 0.4m and 7s. Another secondary swell of 0.5m and 7s is also forecast. The wind is predicted to be cross-onshore as the swell arrives.

The most powerful waves expected at Santos (Hachijojima Island) in the next 16 days are 6.5m 10s and forecast to arrive on Wednesday (May 13) at 3PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 6.5m 10s period and expected on Wednesday (May 13) at 6PM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 3PM (Wed 13th May)21ft (6.5m) 10s
Best Surf 3PM (Wed 13th May)21ft (6.5m) 10s
Most Powerful 3PM (Wed 13th May)21ft (6.5m) 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

Moderate rain (total 14mm), heaviest on Thu night. Warm (max 23°C on Thu night, min 16°C on Sat morning). Winds decreasing (near gales from the WSW on Fri night, light winds from the NE by Sat night).

Days 4-6 Weather Summary

Mostly dry. Warm (max 20°C on Sun afternoon, min 18°C on Mon night). Mainly fresh winds.

Thursday
7
Friday
8
Saturday
9
Sunday
10
Monday
11
Tuesday
12
Wednesday
13
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
0
0
0
0
0
0
0
0
0
0
2
!
1
Swell
Height Map
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
Wave
Height (m)
Direction
Period (s)
1.7
S
6
0.9
ESE
10
0.9
ESE
10
0.9
ESE
10
0.9
ESE
10
0.9
SE
10
0.9
SE
10
0.9
SE
11
0.8
ESE
10
0.8
ESE
10
1.3
ENE
6
0.8
ESE
10
0.9
ESE
10
0.9
ESE
10
0.9
ESE
9
0.9
ESE
9
1.5
SE
9
1.8
SE
6
4.5
E
9
6.5
NE
10
1.3
ESE
10
Wave Graph
Metric surfscale
Energy kJ
178
154
154
157
166
148
139
163
127
115
108
120
151
148
136
148
365
269
2964
7721
365
Wind (km/h)
40
SSW
30
WSW
35
SSW
30
SW
40
SW
55
WSW
45
WNW
45
WNW
35
WNW
30
ENE
20
E
35
SE
25
SSE
20
SSE
20
SE
20
ESE
20
ESE
20
ENE
20
NE
15
ENE
15
NE
cross
cross-off
cross
cross-off
cross-off
cross-off
off
off
off
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
on
cross-on
cross-on
cross-on
cross
High Tide
9:56PM1.19m
7:20AM1.27m
11:01PM1.17m
8:06AM1.21m
00:16AM1.18m
9:24AM1.14m
1:17AM1.22m
11:39AM1.11m
1:57AM1.27m
1:32PM1.15m
2:28AM1.33m
2:52PM1.25m
2:57AM1.38m
Low Tide
2:26PM0.29m
2:10AM1.02m
3:18PM0.37m
3:14AM1.05m
4:23PM0.45m
5:19AM1.05m
5:35PM0.51m
6:58AM0.96m
6:43PM0.56m
7:59AM0.80m
7:46PM0.59m
8:45AM0.60m
8:43PM0.64m
thunderstorm
cloud
thunderstorm
rain showers
cloud
rain showers
part cloud
cloud
part cloud
part cloud
clear
clear
clear
cloud
part cloud
cloud
part cloud
part cloud
cloud
cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:48
4:47
4:46
4:45
4:45
4:43
4:43
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:25
6:27
6:28
6:28
6:29
6:30
6:30
2
7
4
1
Temp °C
22
21
23
23
22
22
18
19
19
19
20
19
19
19
19
19
20
19
20
20
20
18
19
19
20
18
15
9
10
11
14
17
14
15
15
15
16
17
16
18
18
19
Swell 1
Height (m)
Direction
Period (s)
0.8
ESE
10
0.9
ESE
10
0.9
ESE
10
0.9
ESE
10
0.9
ESE
10
0.9
SE
10
0.9
SE
10
0.9
SE
11
0.8
ESE
10
1.5
WNW
7
1
W
6
0.8
ESE
10
0.9
ESE
10
0.9
ESE
10
0.9
ESE
9
0.9
ESE
9
0.3
NNE
10
0.2
NNE
9
2.3
SE
10
0.4
S
7
1.3
ESE
10
Energy kJ
111
154
154
157
166
148
139
163
127
215
81
120
151
148
136
148
19
9
1034
16
365
Swell 2
Height (m)
Direction
Period (s)
0.1
N
9
0.1
NE
8
0.1
NE
11
0.1
NE
12
0.6
SSE
6
0.1
NE
11
0.1
N
11
0.2
SSW
6
0.8
ESE
10
1
NE
6
0.7
NE
6
0.5
E
5
0.5
E
4
0.2
NNE
11
0.4
NE
10
0.1
S
9
0.2
NNE
9
0.5
S
7
0.4
SW
9
Energy kJ
1
2
5
5
27
5
2
3
115
59
35
12
10
13
27
2
9
26
19
Swell 3
Height (m)
Direction
Period (s)
0.1
N
6
0.1
NE
11
0.1
N
7
0.1
NE
11
0.1
NE
11
0.1
NE
5
0.8
ESE
9
0.6
E
5
0.2
NNE
5
0.2
W
4
0.1
S
10
Energy kJ
1
5
1
5
5
1
108
17
2
1
2
Wind waves
Height (m)
Direction
Period (s)
1.7
S
6
1.7
SSW
6
1.4
SSW
6
1.9
SSW
7
1.6
SW
6
2.5
WSW
7
2.5
W
7
2.5
W
8
2.2
WNW
7
1.7
WNW
7
1.3
ENE
6
0.5
E
4
0.6
SE
4
0.8
SE
4
1.5
SE
9
1.8
SE
6
4.5
E
9
6.5
NE
10
6
N
11
Energy kJ
178
196
115
304
188
724
698
763
542
305
97
10
11
22
365
269
2964
7721
7475
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
3
3
1
1
1
1
1
1
1
1
1
2
1
2
3
Distance (km)
152
249
196
233
480
494
235
155
191
227
249
196
191
227
196
152
249
152
191
191
191
Best forecast wave conditions in Izu Islands
Rating
(10 max)
1
3
1
1
1
2
1
2
3
Best forecast wave conditions in Japan
Rating
(10 max)
2
1
1
2
1
1
3
3
2
1
1
1
1
1
1
1
2
2
3
3
5
Header Global
Rating
(10 max)
6
5
5
6
5
5
6
5
5
5
4
5
8
6
5
6
5
8
6
5
5
  • Map Icons:
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  • 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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