Shida Surf Break

Lat Long: 35.33° N 140.40° E

Shida Surf Forecast and Surf Report

Issued: 2 am 04 Aug 2026 (local time)

Forecast update in  hr  min

Today's Shida sea temperature is
27.4° 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 4 Aug 2026:

  • Best quality surf: Wednesday 5 Aug, 9PM (local time) - 11ft (3.5m), 14s period, SSE swell with cross-onshore winds.
  • Most powerful swell: Wednesday 5 Aug, 12AM (local time) - 11ft (3.5m), 16s period, SE swell with 6,704 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 5 Aug, 9PM (local time) - 11ft (3.5m), 14s 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 05) at 9PM. The primary swell is predicted to be 3.5m and 14s period with a secondary swell of 0.2m and 17s. Another secondary swell of 1.7m and 10s 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 16s and forecast to arrive on Wednesday (Aug 05) at 12AM. Winds are predicted to be cross-onshore at the time the swell arrives.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 9PM (Wed 5th Aug)11ft (3.5m) 14s
Best Surf 9PM (Wed 5th Aug)11ft (3.5m) 14s
Most Powerful12AM (Wed 5th Aug)11ft (3.5m) 16s

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


The Lowdown

Alright, let’s get this sorted. The charts are showing a wild ride for Shida over the next couple of weeks, but it’s going to take a bit of patience. The water’s sitting at 81.3°, which is a touch warmer than normal for this time of year – nothing crazy, but you’ll feel it’s a bit more like a bath than usual.

The first few days are pretty much a write-off. We’ve got a solid 11.5ft swell rolling in on Tuesday the 4th, but it’s coming with a rough 19 mph cross-onshore wind. The energy is strong too, a reading of 6322, but it’s messy and lumpy. That combo, with a period of 16 seconds, is just not going to be any fun. Wednesday is more of the same, still around 11.5ft, cross-on wind, and the energy is still pumping at 5411. It’s a lot of water moving around, but it’s all over the place.

We get a bit of a breather Thursday morning. The swell drops to 8.2ft, and the wind backs off to 9 mph, but it’s still cross-on and the wave energy is down to 2749. It’s still pretty choppy, and the tide is going to be a factor. Thursday afternoon is a little better, with the wind going more cross-shore, but it’s still only a 3 out of 10 situation. The period is 14 seconds, so there’s some push, but it’s not clean.

Now, from Friday the 7th through to Sunday the 9th, we start to see some improvement. The wind swings around to a cross-offshore direction, which is a big plus. The swell is still pushing 5.2ft to 6.9ft, and the period stays solid in the 14-15 second range. The energy is still moderate, around 1492 to 3416. Friday afternoon looks like the pick of this little run, with 5.9ft of south swell and a clean 15-second period. It’s still not perfect, but it’s rideable. The wind is 12 mph cross-off, so there will be some texture, but it’s a far cry from the lumpy mess of earlier in the week. The weekend is a bit of a mixed bag, with a slight cross-shore wind and some showers around, but the surf stays in that 5.2ft to 6.2ft range.

Then Monday the 10th and Tuesday the 11th take a turn for the worse. The wind swings back to a strong onshore, blowing 19-22 mph. The swell bumps up again, hitting 9.8ft on Tuesday morning, but the period drops to 12 seconds and the energy is all over the place. The wave energy is 4647, but it’s just a big, wind-blown mess. Not worth getting out of bed for.

But hold on. Things start to get interesting from Wednesday the 12th onwards. The wind finally goes offshore, a light 6 mph from the SSW in the morning, and the swell is still a solid 6.6ft. The energy has dropped to 1576, but with that offshore wind and a 12-second period, it’s going to be clean. Wednesday afternoon gets a bit more wind, but it’s still cross-off and the surf is even better, at 7.2ft. This is when it starts to feel like a real surf.

The next few days, the 13th and into the 14th, the surf drops off a little but stays clean with those offshore and cross-off winds. The swell is around 5.2ft to 5.9ft, but the energy is dropping, down to 787-1130. It’s still surfable, but it’s a bit weaker.

Now, for the real standout. The 15th and 16th of August. The wind goes properly offshore on the 16th, a light 6 mph from the south, and the swell is a healthy 8.2ft. The period is 10 seconds, which is a little shorter, but the energy is back up to 2291. This looks like the best window we’ve got. The afternoon gets a bit windier, 12 mph, but it’s still offshore and the surf is 7.5ft, with the energy just above 1193. This is clean, powerful surf.

We carry that offshore flow into the 17th and the 18th. The swell eases slightly, to around 5.6ft to 7.2ft, but it’s still clean and the conditions are good. The 18th afternoon picks up some more wind, 16 mph from the SSW, but it’s offshore, so it’ll be holding the waves up nicely. The energy is moderate, but the quality is there.

The run continues through to the 19th, with clean, offshore conditions and waves holding in the 5.2ft to 6.2ft range.

Short Range Forecast

Mostly dry. Warm (max 28°C on Thu morning, min 22°C on Tue night). Mainly fresh winds.

Days 4-6 Weather Summary

Moderate rain (total 10mm), heaviest on Fri night. Warm (max 28°C on Sat morning, min 23°C on Sun night). Wind will be generally light.

Tuesday
4
Wednesday
5
Thursday
6
Friday
7
Saturday
8
Sunday
9
Monday
10
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
0
0
0
!
1
3
5
3
4
3
3
4
3
3
2
1
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
16
3.5
SE
16
3.5
SE
16
3.5
SE
14
3.5
SE
15
3
SSE
14
2.5
SSE
13
2.5
S
14
2.5
S
14
2.1
S
14
1.8
S
15
1.5
SSW
14
1.6
SSW
14
1.6
SSW
15
1.9
SE
13
1.7
ESE
14
1.9
ESE
14
1.4
SSW
16
1.3
SSW
16
2.2
E
12
3.5
ENE
12
Wave Graph
Metric surfscale
Energy kJ
5738
6286
6704
5380
5258
3324
2373
2542
2522
1772
1392
862
939
1200
1223
1106
1325
1094
926
1435
3357
Wind (km/h)
30
NE
30
NE
25
NNE
30
NNE
25
NE
10
NNE
15
NE
15
E
15
ESE
20
ESE
20
ESE
15
ESE
20
ESE
15
ESE
10
E
15
E
20
ENE
20
NE
30
NNE
35
NNE
30
NNE
Wind State
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross
cross
cross-on
cross-on
cross-on
on
High Tide
7:38PM1.44m
8:23AM1.15m
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
Low Tide
1:15PM0.56m
2:18AM0.49m
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
part cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
rain showers
rain showers
rain showers
thunderstorm
clear
clear
rain showers
clear
part cloud
part cloud
part cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:48
4:48
4:50
4:50
4:50
4:52
4:52
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:39
6:38
6:37
6:37
6:36
6:35
6:34
 mm
1
1
5
2
1
Temp °C
24
24
23
25
25
25
28
28
26
27
27
26
28
27
26
27
27
24
25
25
23
Feels °C
21
21
22
24
25
28
30
30
30
28
28
28
30
29
29
28
28
24
22
22
21
  • 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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