Shida Surf Break

Lat Long: 35.33° N 140.40° E

Shida Surf Forecast and Surf Report

Issued: 8 am 08 Sep 2026 (local time)

Forecast update in  hr  min

Today's Shida sea temperature is
27.6°C
1.2° 

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


Shida surf forecast from 8 Sep 2026:

  • Best quality surf: Wednesday 9 Sep, 6PM (local time) - 8ft (2.5m), 9s period, SSW swell with cross-offshore winds.
  • Most powerful swell: Wednesday 9 Sep, 6PM (local time) - 8ft (2.5m), 9s period, SSW swell with 972 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 8 Sep, 6PM (local time) - 5ft (1.5m), 9s period with S swell.

Best Forecast Surf Conditions for Shida this week:

The surf forecast for Shida over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Sep 08) at 6PM. The primary swell is predicted to be 1.5m and 9s period with a secondary swell of 0.6m and 8s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Shida in the next 16 days are 2.5m 9s and forecast to arrive on Wednesday (Sep 09) at 6PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.2m 8s period and expected on Wednesday (Sep 09) at 6AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 6PM (Tue 8th Sep)5ft (1.5m) 9s
Best Surf 6PM (Wed 9th Sep)8ft (2.5m) 9s
Most Powerful 6PM (Wed 9th Sep)8ft (2.5m) 9s

Table - best surf conditions forecast for Shida over the next 16 days.


The Lowdown

Alright, Rusty here, and I’ve taken a look at the charts for Shida. It’s a bit of a mixed bag, but there are a couple sessions that should get you out of the house.

We’ve got a bit of a slow start through the first week, with the best to be found next week. The water’s sitting at a warm 82°, which is a touch warmer than normal for this time of year.

This week (Sept 8th-15th)

The opening Tuesday is about the best we’ve got in the near term. Tuesday morning offers up clean, 6ft swell from the south with a solid 9-second period. The combined energy is a moderate 585, and with a gentle cross-offshore breeze, it’ll be clean. It’s a bit inconsistent here, and the crowds can be a thing, but for a weekday morning, you might get your share. The afternoon holds good too, with a proper offshore wind, but the swell drops a touch to 5ft.

Wednesday the 9th gets blown out with a fresh cross-offshore breeze, even with 8ft of swell. That’s getting into the "not for beginners" zone and the wind kills it.

Things drop off hard after that. We’re looking at a massive gap from Wednesday afternoon right through the weekend and into the start of next week. The swell goes tiny and the wind is messy, mostly cross-onshore. It’s a bleak run of poor surf conditions until the 14th.

Next week (Sept 14th-21st)

We finally see a change. Monday the 14th looks promising. The morning is glassy with a light 4ft SE swell, 9-second period and 344 moderate energy. That’s a prime window for a clean session. The afternoon keeps it going with a gentle offshore breeze.

Tuesday the 15th stays clean in the morning with cross-offshore wind and more 4ft SE swell. The afternoon throws in a curveball: the swell drops to 2ft, but the period jumps to 14 seconds, giving it some real groundswell feel. Energy is still moderate at 370.

The Standout (Week 3, Sept 20th-22nd)

Now, if you can wait, there’s a proper pulse on the horizon. Sunday the 20th of September is the real standout of this entire outlook. The morning shows a 7ft SE swell with a very long 18-second period. The combined energy is a strong 3260. The wind is light cross-onshore. But it’s the afternoon that’s the real call: a solid 10ft swell from the SE, still at 17 seconds, with a cross-offshore breeze. That’s a massive 5117 energy reading. This is the one to circle on your calendar. However, this swell is going to be massive. At over 8ft, this is expert territory only, and with that long period, it’ll be most manageable if you know the reef or the river mouth setup. The crowd factor will be a thing here, no doubt.

Monday the 21st gets hammered by heavy rain and howling onshore winds with a giant 13ft+ swell. That’s a write-off for paddle surfing and looks more like a kite session.

The Final Window (Sept 22nd-23rd)

Tuesday the 22nd morning cleans up again with an 12ft SE groundswell and a glassy offshore wind. Again, this is a massive, expert-only swell. The afternoon drops to 8ft but goes cross-shore. After that, the wind turns ugly again.

To wrap it up: the first week is mostly a dud. Wait for Monday the 14th for the first clean surf, and definitely keep your eye on Sunday the 20th afternoon for the big, clean groundswell—just know what you’re stepping into.

Rusty.

Short Range Forecast

Heavy rain (total 24mm), heaviest during Thu night. Warm (max 29°C on Tue morning, min 19°C on Thu night). Mainly fresh winds.

Days 4-6 Weather Summary

Some drizzle, heaviest during Sun night. Warm (max 26°C on Sun morning, min 20°C on Fri morning). Wind will be generally light.

Tuesday
8
Wednesday
9
Thursday
10
Friday
11
Saturday
12
Sunday
13
Monday
14
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
3
2
0
0
1
0
0
0
0
0
0
0
0
0
0
1
1
2
2
2
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.7
S
9
1.6
S
9
1.8
S
8
2.3
S
8
2.1
S
8
1.8
NE
7
1.6
NE
7
1.4
NE
7
1.2
ENE
8
1
ENE
8
0.9
S
8
0.6
E
14
0.6
E
14
0.6
E
13
0.6
E
13
0.6
E
13
0.9
SE
9
1
SE
9
1.1
SE
9
1.1
SE
9
1.1
SE
9
Wave Graph
Metric surfscale
Energy kJ
473
404
448
686
626
319
240
201
157
117
101
136
134
128
128
123
125
159
225
216
202
Wind (km/h)
15
SW
20
SSW
30
SSW
35
SW
30
SW
30
NNE
25
NNE
25
N
20
NNE
15
NNE
15
NNE
15
NNE
15
NNE
15
NE
10
N
10
NNE
15
E
5
ESE
5
ESE
15
SSE
5
SSE
Wind State
cross-off
off
cross-off
cross-off
cross-off
cross-on
on
on
on
on
cross-on
cross-on
cross-on
cross-on
on
cross-on
cross
glassy
glassy
off
glassy
High Tide
3:37PM1.35m
1:44AM1.35m
3:56PM1.40m
2:47AM1.42m
4:15PM1.43m
3:38AM1.47m
4:34PM1.46m
4:24AM1.49m
4:53PM1.48m
5:07AM1.47m
5:12PM1.50m
5:49AM1.42m
5:32PM1.50m
Low Tide
8:42PM0.99m
8:55AM0.18m
9:19PM0.83m
9:35AM0.19m
9:53PM0.67m
10:09AM0.25m
10:27PM0.52m
10:40AM0.34m
11:00PM0.40m
11:09AM0.45m
11:33PM0.31m
11:35AM0.58m
00:06AM0.27m
clear
part cloud
thunderstorm
clear
thunderstorm
heavy rain
light rain
light rain
mod rain
cloud
cloud
cloud
cloud
part cloud
part cloud
part cloud
clear
thunderstorm
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:15
5:15
5:16
5:16
5:18
5:18
5:18
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:57
5:54
5:53
5:52
5:51
5:49
5:47
 mm
2
2
11
1
1
7
1
Temp °C
29
29
27
29
29
22
21
20
20
20
21
21
22
23
22
26
26
25
27
27
25
Feels °C
31
31
28
28
29
20
20
18
18
21
22
22
24
24
24
29
29
29
30
29
28
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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 Shida Surf forecast

The above surf forecast table for Shida provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Shida can be found by selecting the local surf guide option on the grey menu. Our Shida 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 (Shida) 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 Shida 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.

Shida is 9 km (6 miles) from the city of Ohara. If you plan a holiday in Chiba, look for hotels and other accommodation in Ohara. Ohara has rooms for a wide range of budgets as well as car hire and transport links.

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