Shida Surf Break

Lat Long: 35.33° N 140.40° E

Shida Surf Forecast and Surf Report

Issued: 8 pm 24 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 24 Aug 2026:

  • Best quality surf: Wednesday 26 Aug, 6AM (local time) - 3.5ft (1.0m), 12s period, S swell with cross-offshore winds.
  • Most powerful swell: Tuesday 25 Aug, 6AM (local time) - 6ft (1.9m), 13s period, SSE swell with 1,211 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 26 Aug, 6AM (local time) - 3.5ft (1.0m), 12s period with S 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 12s period with a secondary swell of 0.7m 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 1.9m 13s and forecast to arrive on Tuesday (Aug 25) at 6AM. 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) 12s
Best Surf 6AM (Wed 26th Aug)3.5ft (1.0m) 12s
Most Powerful 6AM (Tue 25th Aug)6ft (1.9m) 13s

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


The Lowdown

Right, folks, Rusty here. Let’s have a look at what’s shaping up for Shida over the next couple of weeks. It’s a bit of a mixed bag, but there’s a clear window of opportunity if you’re patient.

The overall pattern starts slow, with a long stretch of poor conditions or small, messy waves. The first real standout doesn’t arrive until the tail end of the first week, and then it gets serious into the second week. For the best of the best, you’ll want to mark your calendar for the 6th of September onwards.

We’re kicking off on Tuesday, the 25th of August, with a bumpy 6ft swell from the SSE but it’s a cross-off breeze and the combined energy is a meaty 1310 (moderate to strong), but the call is marginal. The surf quality is just not there. Wednesday the 26th is smaller, dropping to 3ft, and the wind is still cross-off, but the energy is dropping fast (421). Better than nothing, but nothing to get excited about.

Thursday the 27th has a scrap of 3ft SSE swell with a glassy morning, but the energy is low (237). Friday the 28th morning is the first real tease – a glassy 2ft from the E with a 12-second period, and the energy is 288. It’s clean, but tiny. The rest of the weekend and into the start of the following week is a write-off. From Saturday the 29th through to Monday the 31st of August, we’re looking at poor surf with cross-on winds and dwindling energy, down to 103. It’s a proper flat spell.

Things start to wake up on Tuesday the 1st of September. The morning is still a bit onshore, but the afternoon sees a clean 3ft from the S with a cross-off breeze and energy climbing back to 290. Wednesday the 2nd of September looks tidy – a clean 3ft S swell, offshore winds, and a solid 11-second period. Energy is 385. It’s a good, clean, small-wave day.

Now, here’s where it gets interesting. The standout window begins on Sunday the 6th of September. The morning is a solid 8ft from the SSE with a 14-second period, cross-off winds, and the energy is a thumping 2752. It’s a big, powerful groundswell. The afternoon is even bigger, hitting 10ft from the SSE (3207 energy). The wind is favorable, but this is getting into expert territory. Monday the 7th of September is the peak: a massive 12ft to 13ft S swell with strong offshore winds. The energy is enormous (3178 to 3217). This is a proper, powerful swell, and the wind is clean, but it’s going to be a beast. Only for the experienced crew.

The real prize for the confident surfer is Tuesday the 8th of September. The morning drops to a still-very-healthy 8ft from the S, with a gentle offshore breeze and energy at 1599. The forecast calls it excellent for experienced surfers. That’s the one to aim for. The afternoon gets a bit messy with a cross-on wind, but the morning is a gem.

The energy drops off quickly after that, with a sloppy 5ft on Wednesday the 9th of September and the window closes.

So, the bottom line: the first week is a struggle. The real action is the 6th, 7th, and especially the morning of the 8th of September. That Tuesday morning is the standout – a big, clean, powerful S swell with offshore winds. It’s going to be a spitting, proper wave, but it’s definitely for the experienced crew. The water temp is about average for the time of year, nothing unusual there.

Rusty.

Short Range Forecast

Light rain (total 6mm), mostly falling on Thu morning. Warm (max 31°C on Wed morning, min 23°C on Thu afternoon). Winds decreasing (fresh winds from the SW on Tue morning, light winds from the WSW by Thu morning).

Days 5-7 Weather Summary

Light rain (total 3mm), mostly falling on Thu night. Warm (max 28°C on Fri morning, min 23°C on Thu night). Wind will be generally light.

Tuesday
25
Wednesday
26
Thursday
27
Friday
28
Saturday
29
Sunday
30
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
3
3
1
1
2
0
0
2
0
1
2
1
1
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)
1.6
SSE
13
1.8
SSE
13
1.6
SSE
12
1
S
12
0.9
SSE
10
0.7
SSW
12
0.7
SSE
9
0.8
SSE
10
0.7
E
13
0.7
E
13
0.7
E
12
0.9
SSW
8
0.6
E
12
0.6
E
12
0.5
E
11
0.5
E
11
0.5
E
12
0.6
E
12
0.6
E
11
Wave Graph
Metric surfscale
Energy kJ
878
1025
658
287
159
147
90
123
173
163
148
119
106
96
63
61
65
98
89
Wind (km/h)
20
SW
25
SW
30
SSW
25
SW
15
SW
25
SW
25
SW
5
WSW
20
NE
10
E
5
NNW
20
SSW
5
NNE
20
NE
25
NE
20
NNE
20
NNE
15
NE
15
NNE
Wind State
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-on
cross
glassy
cross-off
on
cross-on
cross-on
cross-on
cross-on
cross-on
on
High Tide
1:06AM1.26m
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
Low Tide
8:45AM0.27m
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
clear
clear
clear
clear
clear
clear
part cloud
thunderstorm
light rain
light rain
part cloud
part cloud
part cloud
part cloud
light rain
rain showers
clear
part cloud
part cloud
<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
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:16
6:15
6:14
6:13
6:12
6:09
6:08
 mm
4
2
1
1
1
Temp °C
27
29
29
27
31
31
27
28
23
24
28
28
26
27
26
25
26
26
25
Feels °C
30
29
29
28
33
32
28
33
24
28
31
29
30
28
26
26
27
27
28
  • 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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