Shida Surf Break

Lat Long: 35.33° N 140.40° E

Shida Surf Forecast and Surf Report

Issued: 2 am 09 Sep 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 8 Sep 2026:

  • Best quality surf: Monday 14 Sep, 12AM (local time) - 3ft (0.9m), 9s period, SE swell with glassy winds.
  • Most powerful swell: Wednesday 9 Sep, 6PM (local time) - 8ft (2.5m), 9s period, SSW swell with 1,070 kJ wave energy.
  • Next surfable swell (1★+): Monday 14 Sep, 12AM (local time) - 3ft (0.9m), 9s period with SE 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 (Sep 14) at 12AM. The primary swell is predicted to be 0.9m and 9s period with a secondary swell of 0.5m and 6s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Shida in the next 16 days are 2.5m 9s and forecast to arrive on Wednesday (Sep 09) at 6PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 4s period and expected on Wednesday (Sep 16) at 3AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+)12AM (Mon 14th Sep)3ft (0.9m) 9s
Best Surf12AM (Mon 14th Sep)3ft (0.9m) 9s
Most Powerful 6PM (Wed 9th Sep)8ft (2.5m) 9s

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 on the cards for Shida over the next couple of weeks.

Honestly, it's a bit of a slow start. We're looking at a stretch of pretty ordinary conditions blowing through the first week and a half, with a few days where you might as well stay home. The window of opportunity doesn't really open until the second week. The standout period is from the 21st of September through to the 23rd, which looks like the real deal.

The only spot on the radar is Shida, an exposed, inconsistent intermediate break that can get crowded. The water temp is sitting at 81°F, which is a touch warmer than normal for this time of year.

We kick off the 9th with a stormy risk, a strong southwesterly wind at 25 mph, and a messy 8 ft south swell. The energy is moderate (925), but it's just poor surf. The 10th is a write-off with onshore winds, and from the 11th to the 14th we're looking at tiny, weak swells and poor conditions. A few mornings on the 14th and 15th show glimmers of hope with some clean, cross-offshore winds as a 4 ft swell from the SE and ESE shows up, but the energy is still only moderate (327-368). The 15th afternoon actually has a clean offshore wind and a 14-second period swell, but it's only 2 ft – a fun little window if you're keen.

Now, the 20th of September is where things start to get interesting. The morning looks glassy with a 4 ft ENE swell, but the energy is still moderate (279). That's a nice little session.

The real standout is Monday the 21st of September. The morning is absolutely glassy with a 6 ft ENE swell, and the energy is building into strong territory (599). The wind is dead calm; it's going to be clean. This is the best call for a solid, fun surf before the bigger stuff hits.

Then Tuesday the 22nd starts with a glassy calm, a 3 ft south swell, but the energy is still strong (544). The wind is zero, so it'll be clean, but the swell is small.

The big one, the one you wait for, is Wednesday the 23rd of September. We've got a 4 ft south swell in the morning, jumping to 5 ft from the SSW by the afternoon. The period is a very long 16 seconds, so this is proper groundswell, and the combined energy is very strong (1016-1317). The wind is a light cross-offshore, so it'll be clean. This is excellent surf for experienced surfers. Heads up though, that long period can make beach breaks a bit wonky, but if the banks are right, it's game on.

Unfortunately, the 24th of September looks like it gets blown out by a fresh onshore wind, even though the swell energy is massive (1368-1534). That's a kite-surfing setup if I've ever seen one.

To wrap it up: the first week and a half is a write-off. The 21st and 23rd of September are your best bets. The 21st for the glassy, clean conditions, and the 23rd for the serious power and quality. It's a long-range call, so don't bank on it, but it's got the potential to be a cracker.

Rusty.

Short Range Forecast

Heavy rain (total 45mm), heaviest during Wed afternoon. Warm (max 29°C on Wed morning, min 19°C on Thu morning). Winds decreasing (strong winds from the SW on Wed morning, light winds from the N by Fri morning).

Days 4-6 Weather Summary

Light rain (total 2mm), mostly falling on Sat morning. Warm (max 26°C on Mon morning, min 22°C on Sat morning). Wind will be generally light.

Wednesday
9
Thursday
10
Friday
11
Saturday
12
Sunday
13
Monday
14
Tuesday
15
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
0
0
0
0
0
0
1
2
1
1
1
2
2
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
2.5
S
8
2.4
S
9
1.6
S
9
1.7
NE
7
1.5
NE
7
1.3
ENE
7
0.5
E
14
0.5
E
14
0.6
E
14
0.6
E
14
0.6
E
13
0.6
ESE
13
0.6
E
13
0.9
SE
9
0.9
SE
9
1.2
SE
9
1.1
SE
9
0.8
E
14
1.2
ESE
9
0.7
E
14
0.8
E
13
Wave Graph
Metric surfscale
Energy kJ
850
861
380
263
204
183
106
101
136
134
128
139
123
125
120
230
194
239
197
200
222
Wind (km/h)
40
SW
35
SW
30
NNE
25
NNE
25
NNE
20
NNE
15
N
15
NNE
15
NNE
15
NNE
20
NE
20
NNE
15
NNE
10
E
5
ENE
15
SSW
20
SSW
15
SW
10
SW
15
SSW
10
WSW
Wind State
cross-off
cross-off
on
on
cross-on
on
on
cross-on
on
cross-on
cross-on
on
on
cross
glassy
cross-off
cross-off
cross-off
cross-off
off
cross-off
High Tide
3:56PM1.40m
2:47AM1.42m
4:15PM1.43m
3:38AM1.47m
4:34PM1.46m
4:24AM1.49m
4:53PM1.48m
5:07AM1.47m
5:12PM1.50m
5:49AM1.42m
5:32PM1.50m
6:30AM1.34m
5:51PM1.49m
Low Tide
9:19PM0.83m
9:35AM0.19m
9:53PM0.67m
10:09AM0.25m
10:27PM0.52m
10:40AM0.34m
11:00PM0.40m
11:09AM0.45m
11:33PM0.31m
11:35AM0.58m
00:06AM0.27m
11:59AM0.70m
00:40AM0.28m
thunderstorm
thunderstorm
heavy rain
light rain
light rain
light rain
light rain
light rain
mod rain
light rain
cloud
part cloud
part cloud
clear
clear
cloud
light rain
part cloud
rain showers
thunderstorm
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:15
5:16
5:16
5:18
5:18
5:18
5:20
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:54
5:53
5:52
5:51
5:49
5:47
5:45
 mm
1
7
12
5
2
5
1
5
7
1
1
1
2
1
Temp °C
29
29
22
21
21
20
20
21
21
22
23
23
25
25
25
26
25
25
27
27
25
Feels °C
28
29
19
20
20
19
20
22
21
23
24
24
28
28
30
28
27
26
29
29
29
  • 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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