Shida Surf Break

Lat Long: 35.33° N 140.40° E

Shida Surf Forecast and Surf Report

Issued: 8 am 05 Aug 2026 (local time)

Forecast update in  hr  min

Today's Shida sea temperature is
27.1° 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 5 Aug 2026:

  • Best quality surf: Wednesday 5 Aug, 6PM (local time) - 10ft (3.0m), 14s period, SE swell with cross-onshore winds.
  • Most powerful swell: Wednesday 5 Aug, 3PM (local time) - 11ft (3.5m), 14s period, SE swell with 4,542 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 5 Aug, 6PM (local time) - 10ft (3.0m), 14s period with SE 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 Wednesday (Aug 05) at 6PM. The primary swell is predicted to be 3.0m and 14s period with a secondary swell of 0.2m and 18s. Another secondary swell of 1.7m and 11s is also forecast. The wind is predicted to be cross-onshore as the swell arrives.

The most powerful waves expected at Shida in the next 16 days are 3.5m 14s and forecast to arrive on Wednesday (Aug 05) 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 0.5m 3s period and expected on Wednesday (Aug 12) at 9AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 6PM (Wed 5th Aug)10ft (3.0m) 14s
Best Surf 6PM (Wed 5th Aug)10ft (3.0m) 14s
Most Powerful 3PM (Wed 5th Aug)11ft (3.5m) 14s

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


The Lowdown

Alright, let’s get into it. The long-range charts are showing a bit of a wild ride for us here.

We’re starting off with a pulse of strong, raw energy, but it’s not in a friendly mood. For the first couple of days, that swell is just too messy, with a strong cross-onshore wind chopping it all up. You’ll see the numbers on the board – that combined energy is up there in the strong zone (5361), but it’s all for nothing when the wind is howling like that. Keep the board in the car for Wednesday.

Things start to clean up a bit from Thursday onwards. The wind swings around to a light cross-offshore, and the swell drops to a more manageable size. It won't be epic, but there will be some clean, lined-up waves for the experienced crew. Thursday afternoon and Friday morning look like the pick of this first stretch, with clean conditions and a decent 13-second period swell rolling in. The energy settles down to a moderate level (around 1700-1900), but it should be fun. Saturday also has some clean lines, though the swell drops off a bit more.

Then we hit a real downer. From Sunday through to the following Tuesday, the wind goes straight onshore and howls. The swell is still there, but the surf is going to be a complete mess. We’re looking at a solid 4-5 day stretch of blown-out, choppy conditions. That’s a long time to be staring at the ocean from the sand. The energy levels drop right off into the weak-to-moderate range, and it’s just not worth the paddle.

There’s a glimmer of hope on the 16th, with the wind turning offshore again and a clean pulse of swell. The energy is still low, but the conditions should be clean. But then the wind gets messy again for the start of that week.

Now, here’s the big one. The forecast for the 19th and 20th is showing a serious pulse of groundswell. We’re talking about a big, long-period swell from the SSE that has the energy meters going nuts – into the strong to very strong range (3399-4674). The wind is forecast to be offshore and light, which would make it absolutely perfect.

But here’s the catch, and it’s a big one. This swell is predicted to be too big for our main break here at Shida. The report literally says the swell is predicted to be too big for this break. With wave heights pushing 10ft to 11ft, this is expert-only territory, and even then, it might just be a washing machine. The water temp is sitting at about 80.8°, which is pretty average for this time of year, so at least you won’t freeze while you’re getting thumped.

So, if you’re an expert and you’re feeling brave, keep an eye on the 20th. The conditions are forecast to be clean and the swell is massive, but it might be a case of watching from the cliff rather than paddling out. Everything else in that second week is marginal at best. There are a few days where the wind is offshore, but the swell is small and weak. It’s a waiting game.

The main window looks like Thursday the 6th through Saturday the 8th. It won’t be huge, but it should be clean and fun. After that, you’re waiting for that big pulse on the 20th, hoping it’s not too much of a good thing.

Short Range Forecast

Mostly dry. Warm (max 28°C on Thu morning, min 24°C on Wed morning). Wind will be generally light.

Days 4-6 Weather Summary

Light rain (total 5mm), mostly falling on Mon night. Warm (max 27°C on Sat morning, min 23°C on Sun night). Winds increasing (calm on Sat night, strong winds from the N by Mon night).

Wednesday
5
Thursday
6
Friday
7
Saturday
8
Sunday
9
Monday
10
Tuesday
11
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
!
3
4
4
4
3
4
3
4
4
1
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
Wave
Height (m)
Direction
Period (s)
3.5
SE
15
3.5
SE
14
3
SE
13
2.2
SSE
13
2.2
SSE
12
2.1
S
13
2
S
13
1.9
S
13
1.6
S
13
1.4
S
13
1.4
S
13
1.6
ESE
13
1.7
ESE
14
1.8
ESE
13
1.6
ESE
13
2.3
E
12
2.3
E
12
3
ENE
12
2.5
ENE
11
2.5
ENE
10
2.2
E
11
Wave Graph
Metric surfscale
Energy kJ
5330
4542
2795
1572
1360
1543
1391
1233
878
633
623
824
1138
1106
774
1556
1570
2348
1541
1250
1137
Wind (km/h)
25
NE
25
NE
10
NE
10
ENE
10
ESE
10
SE
10
SSE
15
SSE
10
SSE
10
ESE
15
SE
5
NE
15
NE
20
ENE
25
NNE
35
NNE
40
NNE
35
NNE
35
NNE
40
NNE
40
N
Wind State
cross-on
cross-on
cross-on
cross
cross-off
cross-off
cross-off
cross-off
off
cross-off
cross-off
glassy
cross-on
cross-on
cross-on
on
on
on
on
on
on
High Tide
8:04PM1.43m
9:51AM1.06m
8:36PM1.41m
12:32PM1.05m
9:18PM1.39m
10:24PM1.37m
3:49PM1.28m
11:59PM1.37m
4:13PM1.35m
1:26AM1.41m
4:39PM1.40m
2:34AM1.47m
Low Tide
1:44PM0.72m
3:16AM0.44m
2:11PM0.89m
4:28AM0.39m
2:33PM1.04m
5:54AM0.32m
7:14AM0.22m
7:20PM1.20m
8:18AM0.12m
8:39PM1.13m
9:10AM0.04m
9:28PM1.03m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
part cloud
cloud
part cloud
rain showers
rain showers
rain showers
mod rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:48
4:50
4:50
4:50
4:52
4:52
4:54
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:38
6:37
6:37
6:36
6:35
6:34
6:31
 mm
5
1
1
7
Temp °C
25
25
25
28
28
26
28
28
26
27
27
25
27
26
24
25
25
24
25
25
24
Feels °C
25
25
28
31
31
30
30
30
29
29
29
28
28
26
24
21
21
21
23
23
20
  • 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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