Shida Surf Break

Lat Long: 35.33° N 140.40° E

Shida Surf Forecast and Surf Report

Issued: 2 am 03 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 2 Aug 2026:

  • Best quality surf: Thursday 6 Aug, 3AM (local time) - 11ft (3.5m), 15s period, SSE swell with onshore winds.
  • Most powerful swell: Wednesday 5 Aug, 3AM (local time) - 13ft (4.0m), 16s period, SE swell with 8,630 kJ wave energy.
  • Next surfable swell (1★+): Thursday 6 Aug, 3AM (local time) - 11ft (3.5m), 15s 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 Thursday (Aug 06) at 3AM. The primary swell is predicted to be 3.5m and 15s period with a secondary swell of 0.2m and 16s. The wind is predicted to be onshore as the swell arrives.

The most powerful waves expected at Shida in the next 16 days are 4.0m 16s and forecast to arrive on Wednesday (Aug 05) at 3AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.2m 7s period and expected on Monday (Aug 10) at 6AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 3AM (Thu 6th Aug)11ft (3.5m) 15s
Best Surf 3AM (Thu 6th Aug)11ft (3.5m) 15s
Most Powerful 3AM (Wed 5th Aug)13ft (4.0m) 16s

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


The Lowdown

Alright folks, Rusty here. Let’s break down the next 16 days for the Shida zone. The water is sitting at 81°F which is a touch warmer than you’d expect for this time of year, so that’s a nice bonus.

The Big Picture: Don’t get your hopes up too early. We’ve got a massive, long-period swell (16-17 seconds) rolling in over the next few days, but it’s coming with strong cross-onshore winds that are going to wreck the surface. The wave energy is strong to very strong (2159-8427 combined energy), but the quality is just poor. This is a stretch of surf that’s going to be blown out and lumpy. From Monday, August 3rd, right through the middle of the following week, we’re looking at a lot of "poor surf conditions" flags. The first few days are a write-off.

Then We Get a Window: The first true glimmer happens on Thursday, August 6th. The morning shows a big 12 ft swell from the SSE, but the wind is cleaner. The issue here is that the swell is predicted to be too big for the break. The afternoon is a bit better, with a clean cross-offshore breeze, but still, waves are around 12 ft. That’s expert territory. The wave energy is still very strong (6907).

The Standout Window: The best bet on offer is actually a couple of days later. On Wednesday, August 12th, things finally come together. The swell drops to a more manageable 6 ft in the morning, coming from the E with a 12-second period. The wind is light and cross-offshore, making for clean conditions. The wave energy is moderate (1074). This is genuine clean surf. The afternoon stays good: 7 ft from the ESE, still clean. This is the day to be in the water, but crowds are likely at Shida.

The Late Period: The second week is a bit of a mixed bag. The swell hangs around, mostly in the 5 ft to 8 ft range, but the wind keeps swinging cross-onshore or cross, making it choppy or marginal. There’s a brief moment on Friday, August 14th, with an 8 ft E swell and moderate cross-shore conditions, but it’s just a "marginal" call. The energy is moderate (3507) but the wind isn't quite cooperating.

Bottom Line: If you’re a beginner, this whole 16-day run is a tough one. The swell is often too big (over 5 ft for most of it), and the wind is rarely your friend. For the experienced crew, Wednesday, August 12th is your clear target. The rest is mostly a waiting game.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 25°C on Mon afternoon, min 22°C on Mon night). Mainly fresh winds.

Days 4-6 Weather Summary

Heavy rain (total 24mm), heaviest during Fri morning. Warm (max 28°C on Thu morning, min 24°C on Sat night). Wind will be generally light.

Monday
3
Tuesday
4
Wednesday
5
Thursday
6
Friday
7
Saturday
8
Sunday
9
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
0
0
0
0
!
!
5
4
3
3
3
3
2
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)
1.9
SE
16
2.3
SE
17
2.5
SE
16
3
SE
16
3
SE
16
3.5
SE
16
4
SE
16
4
SE
16
4
SSE
15
3.5
SSE
15
3.5
SSE
16
2.5
S
15
2.3
S
15
2.2
S
15
1.9
S
14
1.6
SSW
14
1.6
SSW
14
1.6
SSW
14
1.5
SSW
15
1.7
ESE
13
1.6
ESE
14
Wave Graph
Metric surfscale
Energy kJ
1901
2970
3569
4780
5145
6731
8427
7920
6397
6044
6124
3264
2405
2175
1463
900
1016
939
934
880
907
Wind (km/h)
25
NNE
30
NE
25
NNE
30
NNE
30
NE
30
NNE
30
NNE
25
NE
20
NNE
15
ENE
20
ESE
15
ESE
20
ESE
20
ESE
20
ESE
15
ESE
20
ESE
10
NE
25
NE
30
NE
35
NNE
Wind State
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-on
cross-on
cross-on
cross-on
High Tide
7:15PM1.44m
7:22AM1.25m
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
Low Tide
12:47PM0.41m
1:30AM0.56m
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
cloud
clear
part cloud
part cloud
cloud
cloud
part cloud
part cloud
part cloud
rain showers
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
clear
rain showers
clear
clear
clear
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:47
4:48
4:48
4:50
4:50
4:50
4:52
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:39
6:39
6:38
6:37
6:37
6:36
6:35
 mm
1
4
5
6
4
3
1
Temp °C
24
25
23
24
24
23
25
25
24
28
28
26
27
27
26
27
27
25
26
25
23
Feels °C
23
23
22
21
21
21
25
25
25
31
30
28
29
29
28
29
28
27
24
22
20
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
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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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