Shida Surf Break

Lat Long: 35.33° N 140.40° E

Shida Surf Forecast and Surf Report

Issued: 2 am 12 Aug 2026 (local time)

Forecast update in  hr  min

Today's Shida sea temperature is
27.4° C
0.7° 

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


Shida surf forecast from 12 Aug 2026:

  • Best quality surf: Saturday 15 Aug, 12AM (local time) - 5ft (1.5m), 10s period, E swell with cross-offshore winds.
  • Most powerful swell: Sunday 16 Aug, 3PM (local time) - 8ft (2.5m), 10s period, E swell with 1,506 kJ wave energy.
  • Next surfable swell (1★+): Saturday 15 Aug, 12AM (local time) - 5ft (1.5m), 10s period with E 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 Saturday (Aug 15) at 12AM. The primary swell is predicted to be 1.5m and 10s period with a secondary swell of 0.6m and 10s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Shida in the next 16 days are 2.5m 10s and forecast to arrive on Sunday (Aug 16) 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 1.1m 6s period and expected on Wednesday (Aug 12) at 12PM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+)12AM (Sat 15th Aug)5ft (1.5m) 10s
Best Surf12AM (Sat 15th Aug)5ft (1.5m) 10s
Most Powerful 3PM (Sun 16th Aug)8ft (2.5m) 10s

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


The Lowdown

Alright, let’s break down what we’ve got here. Only one spot to talk about – Shida – and it’s a finicky one, rarely breaking clean. The whole 16-day run looks pretty thin, so don’t get your hopes too high.

The action, if you can call it that, starts around Wednesday, August 12th. There’s a 7ft ESE swell showing, but it comes with risk of thunderstorms and a cross-offshore breeze. The combined energy is moderate at about 762, but conditions are marginal at best. Water temp is 81°F, just a touch warmer than average for the time of year, so nothing wild there. The big issue: Shida is inconsistent, so a lot needs to line up for it to work.

Through Thursday and Friday we get chest-high waves around 5ft from the east, but the winds stay cross or cross-on, leaving the surface messy. The energy stays in the moderate range (around 480-501), but for us paddle surfers it’s all a bit ordinary.

Come the weekend of August 16th-17th, the swell cranks up. Sunday morning sees 8ft from the ESE with strong energy at 1069, and by the afternoon it’s 8ft and a huge 2696 in energy. But here’s the catch – the wind is a solid NE cross-on at 12-16 mph. With that size and onshore chop, this beach-and-reef setup looks way more suited for kites than paddleboards. Expert-only if you’re even thinking about it.

The second week drops right off. From August 18th onward, we’re looking at waves mostly under 3ft, with energy falling into the 100s. A couple of bright spots show up: Thursday morning August 20th goes glassy with a light WSW breeze and only 2ft from the south – tiny, but clean. The 12-second period swell on August 26th (2ft) from the ESE is a long-period groundswell, but it’s got no size behind it.

The one true standout is the very end of the forecast. On Thursday, August 27th, the morning goes glassy with a slight air and a fun 6ft peak from the ENE at a short 7-second period. Energy is moderate at 391, and the wind goes offshore in the afternoon. That’s a solid-looking session, but it’s over a week away and Shida is never a sure thing, so treat it as promising, not a lock.

Expect long gaps with no real recommendations, especially through the second week. For an inconsistent spot like this, a blank spell is normal. Stay patient, keep an eye on that last Thursday, and don’t force it.

Rusty.

Short Range Forecast

Heavy rain (total 37mm), heaviest during Wed morning. Warm (max 27°C on Thu morning, min 23°C on Wed night). Wind will be generally light.

Days 4-6 Weather Summary

Some drizzle, heaviest during Sat morning. Warm (max 27°C on Sat morning, min 23°C on Sun night). Wind will be generally light.

Wednesday
12
Thursday
13
Friday
14
Saturday
15
Sunday
16
Monday
17
Tuesday
18
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
0
1
0
1
1
0
0
3
1
0
1
0
0
2
0
2
1
1
1
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
2
ESE
9
1.1
E
9
1.4
E
9
1.5
E
9
1.5
E
10
1.5
E
10
1.5
E
10
1.5
E
10
1.5
E
10
1.7
E
9
1.7
E
9
2.1
E
9
2.3
ESE
10
2.5
E
10
2.5
E
11
2.2
E
10
2.1
ENE
9
1.5
ENE
9
1.2
ENE
8
0.9
ENE
8
0.9
SSE
10
Wave Graph
Metric surfscale
Energy kJ
669
201
318
383
426
434
443
434
414
484
495
734
1018
1506
1379
919
739
322
185
119
178
Wind (km/h)
25
ESE
20
ENE
10
N
15
ENE
15
E
10
NE
20
NE
15
ENE
10
ESE
15
E
20
ENE
15
NNE
20
NE
25
NE
15
NNE
20
NE
15
ENE
10
NNE
5
E
10
S
15
SW
Wind State
cross-off
cross-on
on
cross-on
cross
cross-on
cross-on
cross
cross-off
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross-on
cross
off
cross-off
High Tide
5:03PM1.43m
3:31AM1.51m
5:26PM1.45m
4:22AM1.52m
5:48PM1.46m
5:10AM1.49m
6:09PM1.47m
5:56AM1.42m
6:30PM1.47m
6:42AM1.33m
6:50PM1.46m
7:30AM1.22m
7:11PM1.44m
Low Tide
9:55AM0.01m
10:09PM0.91m
10:34AM0.04m
10:48PM0.78m
11:09AM0.11m
11:26PM0.65m
11:41AM0.23m
00:04AM0.55m
12:10PM0.38m
00:42AM0.48m
12:36PM0.53m
1:22AM0.44m
12:59PM0.68m
2:06AM0.43m
thunderstorm
mod rain
part cloud
thunderstorm
clear
thunderstorm
thunderstorm
clear
thunderstorm
thunderstorm
clear
clear
clear
clear
clear
clear
part cloud
clear
part cloud
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:54
4:54
4:56
4:56
4:56
4:58
4:58
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:30
6:30
6:29
6:28
6:27
6:25
6:23
 mm
8
6
2
3
1
17
1
Temp °C
26
26
24
27
27
25
27
27
26
27
27
25
26
26
24
25
25
24
25
26
25
Feels °C
26
27
27
29
29
28
29
29
29
27
27
26
25
25
25
25
25
26
27
28
27
  • 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 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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