Shida Surf Break

Lat Long: 35.33° N 140.40° E

Shida Surf Forecast and Surf Report

Issued: 2 pm 28 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: Tuesday 1 Sep, 12AM (local time) - 2.5ft (0.8m), 12s period, ESE swell with cross-offshore winds.
  • Most powerful swell: Tuesday 1 Sep, 6PM (local time) - 3.5ft (1.0m), 12s period, ESE swell with 288 kJ wave energy.
  • Next surfable swell (1★+): Monday 31 Aug, 6AM (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 Monday (Aug 31) at 6AM. The primary swell is predicted to be 0.5m and 11s period with a secondary swell of 0.5m and 5s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Shida in the next 16 days are 1.0m 12s and forecast to arrive on Tuesday (Sep 01) at 6PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 4s period and expected on Monday (Aug 31) at 9AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 6AM (Mon 31st Aug)1.5ft (0.5m) 11s
Best Surf12AM (Tue 1st Sep)2.5ft (0.8m) 12s
Most Powerful 6PM (Tue 1st Sep)3.5ft (1.0m) 12s

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


The Lowdown

Alright, Rusty here, let's talk about what's in store for Shida over the next couple of weeks.

We're looking at a bit of a slow start here, but there's some real promise bubbling under the surface. The first few days are pretty ordinary, so we're waiting for the right moment.

Friday the 28th of August has a bit of life. We've got a 5ft groundswell from the southwest, but it's a short-period swell at 7 seconds, so it won't have the punch you'd hope for. The energy is moderate, coming in at 417, but the key here is the glassy conditions – dead calm, not a breath of wind. The water is sitting at 82°, which is a touch warmer than normal for this time of year, so the sting is out of it. That makes for a clean, friendly wave, but it's an inconsistent break, so you might be waiting around a bit. Surfable, but nothing to get too excited about.

Then we hit a dry spell. From Saturday the 29th right through the early part of the week, the wind is onshore or cross-shore, and the swell drops right off. We're looking at knee-high dribble at best, with poor conditions. There's a gap of several days here with nothing worthwhile. Monday the 31st has a tiny glassy morning, but it's only 1ft, just not enough push. That afternoon the wind goes offshore and it cleans up, but again, it's just too small.

Tuesday the 1st of September is where we start to see a real change. The forecast shows a 3ft swell from the east-southeast with an 11-second period – that's proper groundswell. The energy jumps up to 290 in the morning, and with glassy conditions, it's going to be clean. The afternoon has a light cross-offshore breeze keeping things tidy. For a spot that's exposed to the southeast, this is a nice combination. Not huge, but quality. The water is still a touch warmer than normal, so you're in for a comfortable session.

Wednesday the 2nd is a nice follow-up. Another 2-3ft swell, with offshore winds forecast for both the morning and afternoon. The period drops slightly to 10-12 seconds, but it's still clean and the energy is moderate (225-300). It's a good run of consistent conditions for the area.

Things get tricky from Thursday the 3rd. The winds pick up, and while some days are clean, the swell is small and the conditions are marginal. The real show doesn't start until the following week.

Saturday the 5th of September is a standout. The swell jumps to 4-5ft from the east, but the period is short – only 6-7 seconds. The energy is moderate at 257-380, but what makes this one special is the wind. Saturday morning has light cross-offshore winds, and the afternoon goes glassy offshore. For a moment, it all comes together. This is the best window for an average surfer to get some fun, clean waves.

Now, looking way out to the second week: Friday the 11th and Saturday the 12th of September. The numbers get massive. We're talking about a 10ft to 16ft swell from the southeast, with a very long period of 17-19 seconds. The energy is astronomical – 7050 up to 14907. This is for experts only. The wind is offshore or light cross-offshore, so conditions will be clean, but the sheer size of it means this break will be handling a ton of raw power. That long-period groundswell is going to unload with serious authority. It's a promising, distant possibility, but it's too big for anyone who isn't a seasoned charger.

To sum it up, the real call for a good session is the Tuesday the 1st of September through Wednesday the 2nd for clean, shoulder-high groundswell, and Saturday the 5th of September for a punchy, clean day. The end of the second week is just a big, powerful wild card for the brave.

Rusty.

Short Range Forecast

Light rain (total 9mm), mostly falling on Fri afternoon. Warm (max 31°C on Fri afternoon, min 23°C on Sat afternoon). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Warm (max 29°C on Thu morning, min 25°C on Mon night). Winds increasing (calm on Mon night, fresh winds from the SSW by Thu morning).

Fri
28
Saturday
29
Sunday
30
Monday
31
Tuesday
1
Wednesday
2
Thursday
3
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
0
0
0
0
0
0
0
1
1
2
2
2
2
2
2
2
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)
1.5
SW
7
0.6
E
12
0.6
E
12
1.1
ENE
5
1.1
E
5
0.5
E
11
0.5
E
11
0.5
E
11
0.4
E
11
0.5
E
11
0.8
ESE
12
0.9
ESE
11
0.9
ESE
11
1
ESE
11
0.7
ESE
10
0.8
S
12
0.9
S
10
0.8
SSW
10
0.7
E
11
0.6
SSW
10
Wave Graph
Metric surfscale
Energy kJ
192
99
96
60
71
59
61
57
37
70
169
221
229
254
115
171
164
144
114
86
Wind (km/h)
0
NNW
10
ENE
20
E
25
ENE
20
ENE
15
NE
5
NE
10
WNW
5
NW
15
SSW
10
SW
5
SSE
10
SSE
10
SSE
15
SSE
15
S
20
SSW
25
SSW
30
SSW
25
SW
Wind State
glassy
cross-on
cross
cross-on
cross-on
cross-on
cross-on
cross
glassy
off
cross-off
glassy
cross-off
off
off
off
off
cross-off
cross-off
cross-off
High Tide
5:00PM1.43m
4:21AM1.47m
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
Low Tide
10:38PM0.67m
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
light rain
thunderstorm
light rain
cloud
light rain
rain showers
thunderstorm
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
<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
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:12
6:09
6:08
6:07
6:06
6:05
6:04
 mm
1
3
1
2
1
1
Temp °C
31
27
25
23
23
25
26
23
28
28
26
28
28
27
28
28
27
29
29
27
Feels °C
36
30
25
22
23
27
31
25
32
30
28
31
30
31
31
30
31
29
29
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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