
Surf Forecasts:
Shida surf forecast from 19 Jul 2026:
- Best quality surf: Sunday 19 Jul, 6PM (local time) - 3ft (0.9m), 9s period, ESE swell with offshore winds.
- Most powerful swell: Monday 20 Jul, 9PM (local time) - 4ft (1.2m), 11s period, E swell with 335 kJ wave energy.
- Next surfable swell (1★+): Sunday 19 Jul, 3PM (local time) - 3.5ft (1.0m), 9s 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 Sunday (Jul 19) at 3PM. The primary swell is predicted to be 1.0m and 9s period with a secondary swell of 0.3m and 8s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Shida in the next 16 days are 1.2m 11s and forecast to arrive on Monday (Jul 20) at 9PM. Winds are predicted to be cross-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 Sunday (Jul 19) at 3PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3PM (Sun 19th Jul) | 3.5ft (1.0m) 9s |
| Best Surf | 6PM (Sun 19th Jul) | 3ft (0.9m) 9s |
| Most Powerful | 9PM (Mon 20th Jul) | 4ft (1.2m) 11s |
Table - best surf conditions forecast for Shida over the next 16 days.
The Lowdown
Alright, let's switch it up.
The outlook starts on Sunday, July 19th, with a bit of a slow burn.
Look, Shida’s not firing off the bat, but there’s a decent run of clean, surfable waves coming through. The water's sitting right around 77°, which is pretty much bang on average for this time of year, so no surprises there.
Sunday morning the 19th kicks things off with a 4ft ESE swell, period around 9 seconds. The wind is light offshore from the south, so it’s clean. The combined energy is moderate, at 302. It’s not a world-beater, but it’s a solid little session. By Sunday afternoon, it drops back to 3ft, and the wind picks up a bit.
Monday the 20th is smaller again, only 3ft, and the wind swings more cross-offshore. Still rideable, but nothing to write home about.
Now, Tuesday the 21st is where it starts to get interesting. The swell bumps up to 4ft from the east, with a longer 10-second period. That’s a nicer wave, more energy per set. Winds are light offshore in the morning, so it’s clean. The energy is moderate at 277. This is a good day for a paddle.
Wednesday the 22nd is the real standout in the first week. Wednesday morning, the wind goes glassy, dead flat. Swell is 3ft from the east, 10-second period, and the energy is 205. That’s about as clean as it gets. If you want a smooth, easy morning, this is your window.
Thursday the 23rd gets a bit messy with cross-shore winds and smaller swell, only 3ft. The rest of the week into the weekend (24th-26th) is a write-off for quality. Swell drops to 1ft to 2ft, periods are all over the place, and the wind is not helping. There’s a real flat spell from Friday the 24th through Sunday the 26th.
Then, things get a bit more interesting in the second week. Monday the 27th sees a pulse of 3ft swell from the south, 12-second period, and the energy jumps to 525. But the wind is cross-shore, so it’s not perfect.
The absolute best of the whole forecast window is Tuesday the 28th. Tuesday afternoon you get a clean 4ft swell from the south, 13-second period, and light cross-offshore wind. The energy is solid at 552. This is the pick of the bunch – clean, good size, good period.
Wednesday the 29th is also excellent. Morning sees 4ft south swell, 14-second period, with cross-offshore wind. Energy is 779. The afternoon has offshore wind at 16 mph, keeping it clean. This is another top-tier day.
Now, a heads up: Thursday the 30th and Friday the 31st see the swell size vary, but the period drops to a short 7 seconds, which makes the waves a bit more crumbly and less powerful. It’s still surfable, but not as good as the Tuesday and Wednesday.
The end of the run, Saturday August 1st and Sunday August 2nd, brings in a big southeast swell. On Sunday the 2nd, the swell hits 5ft to 6ft, with a very long 16-17 second period. The energy is huge, at 1366 and 2003. But the wind is cross-offshore, so it’s clean. This is a big groundswell – long period, so it’ll be better for a point break or reef setup than a straight beach break. It’s a proper expert-level day.
By Monday August 3rd, the swell goes massive – 10ft to 12ft, with a 18-second period. The energy is off the charts, at 6581 and 7299. That’s way too big for Shida, and only for the most experienced, heavy-water crew. For most, it’s a skip.
Rusty.
Short Range ForecastMostly dry. Warm (max 30°C on Tue morning, min 25°C on Sun night). Wind will be generally light. | Days 4-6 Weather SummaryModerate rain (total 11mm), heaviest on Thu night. Warm (max 30°C on Wed morning, min 24°C on Thu night). Wind will be generally light. | ||||||||||||||||||||
Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map | |||||||||||||||||||||
Wave Height (m) Direction Period (s) | ESE 9 | E 9 | E 9 | E 9 | E 8 | E 11 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 9 | E 9 | E 9 | SE 11 | SE 16 | SE 16 | SE 16 | SE 15 |
Wave Graph | |||||||||||||||||||||
232 | 165 | 127 | 119 | 116 | 329 | 257 | 247 | 196 | 192 | 153 | 146 | 116 | 109 | 80 | 57 | 57 | 66 | 65 | 63 | 57 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | cross-off | cross-off | off | cross-off | off | off | cross-off | glassy | off | cross-off | cross | cross-off | cross-on | cross-on | cross | cross-on | cross | cross-off | off |
High Tide | 7:54PM1.41m | 7:46AM1.20m | 8:19PM1.40m | 8:53AM1.09m | 8:46PM1.39m | 10:25AM1.01m | 9:16PM1.36m | 12:53PM1.01m | 9:55PM1.33m | 3:31PM1.10m | 10:50PM1.30m | 3:52PM1.18m | 00:02AM1.29m | ||||||||
Low Tide | 1:17PM0.39m | 2:06AM0.64m | 1:46PM0.56m | 3:00AM0.58m | 2:13PM0.72m | 4:00AM0.54m | 2:39PM0.87m | 5:08AM0.49m | 3:04PM1.00m | 6:19AM0.44m | 4:23PM1.10m | 7:24AM0.37m | 7:04PM1.14m | ||||||||
4:35 | — | — | 4:37 | — | — | 4:37 | — | — | 4:39 | — | — | 4:39 | — | — | 4:39 | — | — | 4:41 | — | — | |
— | 6:52 | — | — | 6:51 | — | — | 6:50 | — | — | 6:50 | — | — | 6:49 | — | — | 6:49 | — | — | 6:47 | — | |
mm | — | — | — | — | — | — | — | — | — | — | 1 | — | — | 2 | 8 | — | — | — | — | — | — |
Temp °C | 27 | 27 | 26 | 29 | 29 | 27 | 30 | 30 | 27 | 30 | 29 | 28 | 29 | 29 | 26 | 27 | 27 | 25 | 27 | 27 | 26 |
Feels °C | 29 | 28 | 29 | 32 | 31 | 30 | 33 | 32 | 30 | 34 | 33 | 33 | 33 | 34 | 31 | 30 | 30 | 28 | 30 | 30 | 30 |
Swell 1 Height (m) Direction Period (s) | ESE 9 | E 9 | E 9 | E 9 | E 8 | E 11 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 9 | E 9 | E 9 | E 9 | E 9 | E 8 | SE 10 | E 8 |
232 | 165 | 127 | 119 | 116 | 329 | 257 | 247 | 196 | 192 | 153 | 146 | 116 | 109 | 80 | 57 | 56 | 37 | 35 | 49 | 33 | |
Swell 2 Height (m) Direction Period (s) | S 8 | S 8 | SE 7 | S 7 | E 14 | SSE 8 | SSW 4 | SSE 8 | SSE 8 | SSW 4 | SSE 7 | SSW 5 | SSW 5 | SSW 6 | SE 10 | SE 9 | SE 11 | SE 10 | SE 10 | E 8 | SE 10 |
10 | 11 | 13 | 4 | 59 | 13 | 7 | 12 | 6 | 7 | 5 | 9 | 9 | 12 | 24 | 22 | 57 | 54 | 48 | 34 | 49 | |
Swell 3 Height (m) Direction Period (s) | SE 12 | SE 12 | S 8 | SE 12 | SSE 7 | SE 11 | SSE 8 | SE 11 | ESE 11 | SSE 8 | SSE 11 | SSE 10 | SE 10 | SE 10 | SSW 5 | SE 18 | SE 17 | SE 16 | SE 16 | SE 16 | SE 15 |
6 | 6 | 10 | 5 | 4 | 5 | 13 | 19 | 12 | 6 | 12 | 10 | 25 | 25 | 5 | 49 | 43 | 66 | 65 | 63 | 57 | |
Wind waves Height (m) Direction Period (s) | SSE 8 | SSE 4 | S 4 | S 7 | SSW 4 | SW 4 | SW 4 | SSW 4 | SSW 4 | — | SSW 4 | — | — | — | — | NE 4 | ENE 4 | ENE 4 | ENE 4 | ENE 4 | — |
54 | 13 | 4 | 25 | 11 | 7 | 15 | 12 | 6 | — | 10 | — | — | — | — | 8 | 14 | 10 | 9 | 6 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 17 | 0 | 3 | 30 | 17 | 27 | 17 | 0 | 0 |
Best forecast wave conditions in Chiba | |||||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||||
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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.










