Shida Surf Break

Lat Long: 35.33° N 140.40° E

Shida Surf Forecast and Surf Report

Issued: 8 am 09 Aug 2026 (local time)

Forecast update in  hr  min

Today's Shida sea temperature is
25.8° C
0.8° 

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


Shida surf forecast from 9 Aug 2026:

  • Best quality surf: Tuesday 11 Aug, 12PM (local time) - 5ft (1.6m), 11s period, E swell with cross-offshore winds.
  • Most powerful swell: Monday 10 Aug, 9PM (local time) - 8ft (2.5m), 11s period, ENE swell with 1,489 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 11 Aug, 12PM (local time) - 5ft (1.6m), 11s 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 Tuesday (Aug 11) at 12PM. The primary swell is predicted to be 1.6m and 11s period with a secondary swell of 1.1m 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 11s and forecast to arrive on Monday (Aug 10) at 9PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 4s period and expected on Wednesday (Aug 12) at 3AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+)12PM (Tue 11th Aug)5ft (1.6m) 11s
Best Surf12PM (Tue 11th Aug)5ft (1.6m) 11s
Most Powerful 9PM (Mon 10th Aug)8ft (2.5m) 11s

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


The Lowdown

Alright, Rusty here. Let's have a look at what’s on the menu for Shida over the next couple of weeks.

First up, we’ve got a bit of a mixed bag. The water is sitting at 78°, which is pretty much average for this time of year, so no surprises there.

The best bet in the whole forecast window is the Sunday morning session on August 9th. We’ve got a clean 6 ft swell rolling in from the ESE with a solid 13-second period. The wind is glassy out of the ENE at just 3 mph. That’s going to make for some beautiful, clean lines. The combined wave energy is pumping at 1131 (moderate to strong energy), so there’s plenty of punch. This is definitely the standout – it’s an excellent session for experienced surfers, and with the crowd factor being “often,” you might have to share, but it’ll be worth it.

Monday the 10th is a write-off. The wind swings onshore and the chop gets nasty. Swell jumps to 7 ft but the conditions are poor. Save your energy.

Tuesday the 11th sees the swell drop a little to 7 ft, still from the east, with a clean offshore wind in the morning. The combined energy is 1532 (strong), but the period is down to 10 seconds, so it won’t have the same grunt as Sunday. It’s marginal, not a full standout.

Things get quieter through the middle of the week and into the next weekend. The surf stays small, often below 5 ft, and the winds are mostly cross or onshore, keeping quality low. There’s a stretch from the 13th through to the 18th where it’s basically not worth paddling out – persistent onshore or cross-onshore winds and choppy conditions.

We finally get a second window of opportunity around the 18th and 19th of August. On Tuesday the 18th afternoon, the wind shifts offshore from the south at 9 mph, and we see a clean 6 ft swell from the ESE. The period is shorter at 8 seconds, but it’s clean and rideable. The combined energy is 467 (moderate). This is your second-best bet in the whole outlook, and the condition comments even call it “good surf.”

Wednesday the 19th morning and afternoon keep that offshore flow and similar sized surf, so it’s a solid little run. But after that, the swell fades fast. By Thursday the 20th, we’re down to 3 ft and smaller, and by the end of the 16-day window we’re scraping around 2 ft to 3 ft. There’s a final little pulse on Sunday the 23rd and Monday the 24th with clean, glassy mornings and small 2 ft – 3 ft south and southeast swell, but it’s really just a gentle finish.

So, to sum it up: Sunday, August 9th morning is your absolute standout – glassy, 6 ft, lovely period, clean. Tuesday the 18th afternoon through Wednesday the 19th offers a second chance with offshore winds and clean 6 ft to 6 ft surf. The rest is either blown out or too small. Being inconsistent, Shida doesn’t fire often, so when it does, you gotta go.

Rusty.

Short Range Forecast

Moderate rain (total 17mm), heaviest on Tue night. Warm (max 28°C on Sun morning, min 22°C on Mon night). Winds increasing (calm on Sun morning, fresh winds from the NE by Mon afternoon).

Days 4-6 Weather Summary

Moderate rain (total 16mm), heaviest on Wed morning. Warm (max 27°C on Thu morning, min 23°C on Wed night). Wind will be generally light.

Sunday
9
Monday
10
Tuesday
11
Wednesday
12
Thursday
13
Friday
14
Saturday
15
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
4
2
0
0
0
0
3
2
3
2
1
0
0
1
2
1
0
0
0
0
1
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
ESE
13
1.7
ESE
13
1.6
ESE
12
2.1
E
12
2.1
E
11
2.5
ENE
10
2
E
10
1.6
E
11
1.6
E
11
1.2
E
10
1.1
E
9
1.1
E
9
1.2
E
9
1.6
E
9
1.7
E
10
1.8
E
10
1.8
E
10
1.6
E
10
1.5
E
9
1.4
E
9
1.9
ESE
10
Wave Graph
Metric surfscale
Energy kJ
998
903
794
1227
1075
1288
834
663
617
273
198
198
235
416
557
635
650
474
383
334
706
Wind (km/h)
5
ENE
15
E
20
NNE
25
NNE
30
NE
30
NNE
10
N
25
SW
20
SSE
15
SE
10
N
15
N
15
NE
15
E
5
ENE
15
NE
20
NE
20
NNE
25
NNE
20
E
10
NE
Wind State
glassy
cross
cross-on
cross-on
cross-on
on
on
cross-off
off
cross-off
on
on
cross-on
cross
cross-on
cross-on
cross-on
cross-on
on
cross
cross-on
High Tide
3:49PM1.28m
11:59PM1.37m
4:13PM1.35m
1:26AM1.41m
4:39PM1.40m
2:34AM1.47m
5:03PM1.43m
3:31AM1.51m
5:26PM1.45m
4:22AM1.52m
5:48PM1.46m
5:10AM1.49m
6:09PM1.47m
Low Tide
7:20PM1.20m
8:18AM0.12m
8:39PM1.13m
9:10AM0.04m
9:28PM1.03m
9:55AM0.01m
10:09PM0.91m
10:34AM0.04m
10:48PM0.78m
11:09AM0.11m
11:26PM0.65m
11:41AM0.23m
00:04AM0.55m
part cloud
part cloud
part cloud
clear
part cloud
part cloud
clear
cloud
thunderstorm
thunderstorm
light rain
part cloud
thunderstorm
part cloud
thunderstorm
part cloud
part cloud
thunderstorm
thunderstorm
thunderstorm
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:52
4:52
4:54
4:54
4:54
4:56
4:56
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:35
6:34
6:31
6:30
6:30
6:29
6:28
 mm
17
5
1
1
3
6
4
7
2
Temp °C
28
27
25
26
26
24
27
27
24
25
25
25
27
27
25
27
27
26
27
27
26
Feels °C
30
27
27
25
24
23
27
26
25
28
27
28
29
29
29
28
28
28
29
28
28
  • 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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