Shida Surf Break

Lat Long: 35.33° N 140.40° E

Shida Surf Forecast and Surf Report

Issued: 8 am 25 Aug 2026 (local time)

Forecast update in  hr  min

Today's Shida sea temperature is
27.9°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 25 Aug 2026:

  • Best quality surf: Tuesday 1 Sep, 9AM (local time) - 3ft (0.9m), 12s period, S swell with offshore winds.
  • Most powerful swell: Tuesday 25 Aug, 6PM (local time) - 5ft (1.6m), 12s period, SSE swell with 625 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 26 Aug, 6AM (local time) - 3.5ft (1.0m), 9s period with SSE 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 26) at 6AM. The primary swell is predicted to be 1.0m and 9s period with a secondary swell of 0.7m and 12s. 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 1.6m 12s and forecast to arrive on Tuesday (Aug 25) 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 1.4m 6s period and expected on Thursday (Aug 27) at 9AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 6AM (Wed 26th Aug)3.5ft (1.0m) 9s
Best Surf 9AM (Tue 1st Sep)3ft (0.9m) 12s
Most Powerful 6PM (Tue 25th Aug)5ft (1.6m) 12s

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


The Lowdown

Alright, let’s break down what’s in the water for Shida these next couple weeks. Honestly, it’s a bit of a rollercoaster with a long slow patch in the middle where you won’t find much to ride.

We start on Tuesday the 25th of August with a chunky swell running. Waves are pushing 6 feet from the SSE with a 13-second period, and the energy is strong – a combined energy reading of 1310 tells you there’s plenty of power. The water temp is 82°F, which is running a touch warmer than usual. Winds are blowing cross-offshore from the SW, keeping it reasonably clean, but the conditions are marginal and the tide might throw a spanner in the works. Wednesday morning the 26th drops way down to about 3 feet, and the wind stays cross-off, so it’s small but tidy.

After that, the bottom falls out. From Thursday the 27th right through until the morning of Tuesday the 1st of September, there’s next to nothing. Most days are showing poor surf with onshore or cross-off breezes on tiny waves – you’re looking at 2 to 2 feet tops, and the energy readings are weak (between 136 and 293). A few moments have clean water but the waves simply aren’t there. That’s a solid four or five days of flatness.

Then – and this is the highlight – on Tuesday the 1st of September morning, it comes alive. Clean conditions with a light offshore from the SSE, waves around 3 feet from the south with a 12-second period, and the energy jumps to a solid 524. Tuesday afternoon gets even better: 4 feet from the east, 12-second period, and combined energy of 733. Winds are offshore from the SSE, gentle breeze – that means glassy, lined-up waves and a fun session. This is the best call of the whole outlook. Shida handles SE swell well, and with that offshore flow you’re in for a treat. Just keep in mind, crowds can show up here pretty regularly.

Wednesday the 2nd holds a bit of size at around 4 feet but the wind goes cross-shore and the surface gets a little lumpy – surfable but not as good as Tuesday. Thursday the 3rd cleans up again with a 3-foot SSE swell and offshore wind in the afternoon.

From Friday the 4th into early September, it gets rough again with onshore winds and choppy small waves, then around the 6th and 7th of September we get a bigger but messier pulse. Swell hits 6 to 8 feet from the SE, but the period is short (8-9 seconds) and it’s cross-shore with a lot of chop. That’s looking more like a good day for kite surfing than paddling – too lumpy for most.

So bottom line: your best shot is Tuesday the 1st of September. Make a plan. Before that, it’s mostly flat and poor, and after the 2nd it gets erratic again.

Stay wet,
Rusty.

Short Range Forecast

Moderate rain (total 19mm), heaviest on Thu morning. Warm (max 30°C on Tue afternoon, min 23°C on Thu afternoon). Winds decreasing (fresh winds from the SW on Tue morning, calm by Thu night).

Days 4-6 Weather Summary

Some drizzle, heaviest during Sun afternoon. Warm (max 28°C on Fri afternoon, min 24°C on Fri morning). Wind will be generally light.

Tuesday
25
Wednesday
26
Thursday
27
Friday
28
Saturday
29
Sunday
30
Monday
31
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
1
2
2
0
0
2
0
1
0
0
2
0
0
0
0
1
1
1
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)
1.8
SSE
13
1.6
SSE
12
1
S
12
0.9
SSE
10
0.9
SSE
9
0.8
SSE
9
0.7
SSE
10
0.7
E
13
0.7
E
13
1.6
SW
6
0.6
E
12
1.3
SW
6
0.6
E
12
0.5
E
11
0.5
E
11
0.6
E
12
0.6
E
12
0.6
E
12
0.6
E
11
0.6
E
11
0.7
SE
12
Wave Graph
Metric surfscale
Energy kJ
1025
658
287
159
146
115
96
173
163
200
103
122
96
63
58
100
100
95
87
89
147
Wind (km/h)
20
SW
25
SSW
20
SW
15
WSW
30
SW
30
SW
10
WSW
15
NE
25
SSW
10
N
15
SSW
5
WNW
20
NE
25
NE
10
NNE
10
NNE
5
ESE
10
SW
10
SW
20
SSW
15
SSW
Wind State
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-on
cross-off
on
cross-off
glassy
cross-on
cross-on
cross-on
cross-on
cross-off
cross-off
cross-off
cross-off
cross-off
High Tide
4:09PM1.31m
2:09AM1.33m
4:25PM1.36m
2:57AM1.40m
4:43PM1.40m
3:40AM1.45m
5:00PM1.43m
4:21AM1.47m
5:19PM1.46m
5:02AM1.47m
5:37PM1.48m
5:44AM1.43m
5:57PM1.49m
Low Tide
9:07PM0.99m
9:22AM0.21m
9:38PM0.89m
9:54AM0.18m
10:08PM0.78m
10:24AM0.19m
10:38PM0.67m
10:53AM0.24m
11:10PM0.55m
11:21AM0.33m
11:43PM0.45m
11:48AM0.44m
00:18AM0.37m
clear
clear
clear
clear
clear
rain showers
thunderstorm
light rain
mod rain
cloud
part cloud
part cloud
clear
part cloud
part cloud
part cloud
thunderstorm
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:03
5:05
5:05
5:05
5:07
5:07
5:09
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:15
6:14
6:13
6:12
6:09
6:08
6:07
 mm
2
8
3
6
1
Temp °C
29
30
27
30
30
27
27
23
24
26
28
25
27
27
25
27
27
26
29
29
27
Feels °C
29
31
29
34
31
29
31
24
27
30
29
28
28
27
26
30
31
30
32
31
30
  • 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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