Shida Surf Break

Lat Long: 35.33° N 140.40° E

Shida Surf Forecast and Surf Report

Issued: 2 am 29 Aug 2026 (local time)

Forecast update in  hr  min

Today's Shida sea temperature is
27.8°C
1.1° 

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


Shida surf forecast from 28 Aug 2026:

  • Best quality surf: Friday 4 Sep, 9PM (local time) - 5ft (1.6m), 8s period, NE swell with cross-offshore winds.
  • Most powerful swell: Saturday 5 Sep, 9AM (local time) - 6.5ft (2.0m), 8s period, NE swell with 527 kJ wave energy.
  • Next surfable swell (1★+): Saturday 29 Aug, 3PM (local time) - 1.5ft (0.5m), 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 Saturday (Aug 29) at 3PM. The primary swell is predicted to be 0.5m and 11s period with a secondary swell of 0.4m and 8s. Another secondary swell of 1.0m and 5s is also forecast. 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 2.0m 8s and forecast to arrive on Saturday (Sep 05) at 9AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 6s period and expected on Thursday (Sep 03) at 12AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 3PM (Sat 29th Aug)1.5ft (0.5m) 11s
Best Surf 9PM (Fri 4th Sep)5ft (1.6m) 8s
Most Powerful 9AM (Sat 5th Sep)6.5ft (2.0m) 8s

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


The Lowdown

Alright folks, Rusty here. Let’s have a look at what’s shaping up for Shida over the next couple of weeks.

Right off the bat, we’ve got a slow start. The first few days from Saturday the 29th to Monday the 31st are pretty flat and weak. The swell is tiny, only around 1ft to 2ft, and the winds are mostly cross or cross-on, so the surf is poor or just ordinary. The combined energy is low, mostly in the 98 to 175 range, which tells you there’s hardly any push. Not worth paddling out for.

There’s a bit of a lift on Tuesday the 1st of September, with a 3ft swell from the ESE, but the wind is onshore or cross, and the conditions are still marginal. The surf is there but it’s messy. Wednesday the 2nd starts to look better – the swell stays around 3ft to 4ft, and the wind goes offshore or cross-off. The water is a touch warmer than normal for this time of year at 82°F, which is nice. Wednesday afternoon is the first real standout: 4ft from the ESE, period short at 7 seconds, but the wind is offshore from the S at 9 mph, so it’ll be clean. Energy is moderate at 230.

Thursday the 3rd has a tricky morning with a risk of storms and stronger cross-off wind, but the afternoon is a gem. The swell drops to 4ft from the SSE, period still short at 7 seconds, but the wind cranks offshore from the SSW at 16 mph. That’s clean, solid, and the energy jumps to 345. This is a good window for the intermediate surfer.

Friday the 4th and Saturday the 5th are a write-off. The swell jumps up to 6ft to 7ft, but the wind is onshore or cross-on, and the energy is high but the quality is poor. The beach setup with that much wind and size will be a choppy mess – more for kite surfers than paddle surfers.

Sunday the 6th sees the swell pumping up to 8ft to 8ft from the ENE, with a period of 10 seconds. The energy is strong (1067 to 1159), but the wind is cross or cross-on, so it’s marginal. The size is getting into the territory where only experienced surfers should be out.

Now, here’s the real highlight. Monday the 7th of September. The morning is glassy – wind from the SW at 3 mph – with a 8ft swell from the E at 9 seconds. The energy is very strong at 1586. This is excellent surf for experienced surfers. The afternoon is just as good, with 6ft from the S, a longer 12-second period, and offshore wind from the SSW. That’s a long period groundswell, so it’ll have good shape and power, but it might be a bit too straight for a beach break. The water is still warm.

Tuesday the 8th is the big one, but it’s too big. The swell hits 13ft from the SSE with a 12-second period, and the energy is massive at 4914. The wind is offshore, so it’s clean, but this is a beast for experts only. The same goes for Wednesday the 9th, with 10ft to 12ft from the S, but the wind goes cross-on, so it’s a mess.

The following week tails off. Thursday the 10th and Friday the 11th drop back to 4ft to 5ft from the ESE and S, with improving winds. The best of the second week looks like Saturday the 12th of September: 5ft to 5ft from the ESE, with a period of 10 seconds, and the wind is offshore from the S at 16 to 19 mph. Energy is moderate (393 to 442). It’s a clean, solid option for the keen surfer.

Sunday the 13th is another giant swell, 12ft to 13ft from the SSE with a very long 13 to 14-second period, and offshore wind. The energy is enormous (4261 to 5453), but it’s only for the brave and experienced. The long period means it will be holding up a lot of water, so it’s best for a point or reef, but the size is the main story here.

Overall, the standout is Monday the 7th of September – glassy, solid swell, and clean. The second best is the afternoon of Thursday the 3rd with that clean offshore wind. The rest of the time is either too small, too windy, or too big.

Rusty.

Short Range Forecast

Moderate rain (total 12mm), heaviest on Sat morning. Warm (max 27°C on Mon morning, min 22°C on Sat night). Wind will be generally light.

Days 4-6 Weather Summary

Moderate rain (total 10mm), heaviest on Thu night. Warm (max 29°C on Thu morning, min 25°C on Tue morning). Wind will be generally light.

Saturday
29
Sunday
30
Monday
31
Tuesday
1
Wednesday
2
Thursday
3
Friday
4
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
1
0
0
0
0
0
1
0
0
1
2
2
2
1
1
2
2
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)
0.6
E
12
0.5
E
11
1.1
ENE
6
0.5
E
11
0.5
E
11
0.5
E
11
0.5
E
11
0.4
ESE
14
0.8
ESE
12
0.9
ESE
11
0.9
ESE
11
0.9
ESE
11
0.8
ESE
10
1.2
ESE
7
0.9
ESE
7
0.9
SSW
10
1.3
SSE
7
1.7
SSE
7
1.2
SE
7
1.9
S
7
1.8
NE
8
Wave Graph
Metric surfscale
Energy kJ
96
60
77
59
60
56
57
73
175
229
173
164
114
123
75
139
168
255
143
338
413
Wind (km/h)
20
E
10
ESE
20
NNE
15
NE
15
NE
10
E
10
ENE
10
ESE
15
N
10
NNE
10
ENE
5
N
5
ESE
15
S
10
SSW
20
SSW
25
SSW
10
SW
15
NE
15
NNE
40
NNE
Wind State
cross
cross-off
on
cross-on
cross-on
cross
cross
cross-off
on
on
cross
glassy
cross-off
off
off
cross-off
off
cross-off
cross-on
cross-on
cross-on
High Tide
5:19PM1.46m
5:02AM1.47m
5:37PM1.48m
5:44AM1.43m
5:57PM1.49m
6:29AM1.36m
6:18PM1.49m
7:19AM1.27m
6:41PM1.49m
8:22AM1.16m
7:06PM1.46m
10:01AM1.07m
7:36PM1.42m
Low Tide
10:53AM0.24m
11:10PM0.55m
11:21AM0.33m
11:43PM0.45m
11:48AM0.44m
00:18AM0.37m
12:15PM0.58m
00:57AM0.32m
12:40PM0.73m
1:43AM0.31m
1:03PM0.88m
2:39AM0.32m
1:15PM1.01m
light rain
rain showers
light rain
part cloud
part cloud
rain showers
thunderstorm
clear
part cloud
part cloud
clear
clear
clear
clear
part cloud
thunderstorm
part cloud
thunderstorm
thunderstorm
thunderstorm
heavy rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:07
5:07
5:09
5:09
5:09
5:11
5:11
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:09
6:08
6:07
6:06
6:05
6:04
6:01
 mm
3
3
1
3
2
3
7
2
5
42
Temp °C
24
24
23
25
25
25
27
27
25
27
27
26
28
28
27
29
29
27
25
25
24
Feels °C
25
27
23
27
27
28
30
30
29
30
31
31
31
30
31
30
30
29
28
28
27
  • 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 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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