
Surf Forecasts:
Shida surf forecast from 1 Aug 2026:
- Best quality surf: Wednesday 5 Aug, 9PM (local time) - 13ft (4.0m), 16s period, SSE swell with cross-onshore winds.
- Most powerful swell: Wednesday 5 Aug, 6PM (local time) - 13ft (4.0m), 16s period, SSE swell with 8,467 kJ wave energy.
- Next surfable swell (1★+): Saturday 1 Aug, 3PM (local time) - 1.5ft (0.4m), 16s 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 Saturday (Aug 01) at 3PM. The primary swell is predicted to be 0.4m and 16s period with a secondary swell of 0.4m and 10s. The wind is predicted to be offshore 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 6PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 6s period and expected on Saturday (Aug 01) at 9PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3PM (Sat 1st Aug) | 1.5ft (0.4m) 16s |
| Best Surf | 9PM (Wed 5th Aug) | 13ft (4.0m) 16s |
| Most Powerful | 6PM (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 have a look at what’s on the cards for Shida over the next couple of weeks. I’ll be straight with you – it’s a bit of a mixed bag, and we’ve got a long wait for anything truly worth getting wet for.
First up, the water temp is sitting at a nice 79°, which is about average for this time of year, so no surprises there. The early part of the forecast is pretty quiet. Saturday morning, the 1st of August, we’ve got a tiny 1ft SE swell pushing through with a decent 11-second period, but the energy is weak (60). The wind is light and cross-off, so it’s clean, but honestly, it’s just surfable, nothing to get excited about. The afternoon cleans up even more with a glassy offshore breeze and a longer 16-second period, but still only 1ft. It’s a session for the longboard if you’re desperate.
Then we hit a rough patch. From Sunday the 2nd right through to the 9th of August, the wind turns nasty and onshore, ramping up from 15 mph to 18 mph. The swell gets big – way too big. By Tuesday the 4th, we’re looking at 10ft to 13ft of SE swell, and the energy is absolutely pumping (up to 9100). But with that strong cross-onshore wind, it’s going to be a complete mess. That’s not a paddle session; that’s a write-off. The whole week is a no-go, pure and simple.
The next week doesn’t offer much hope for a clean classic session. The 11th of August has a massive 12ft swell again, but the wind is light and cross-on, and the energy is still huge (6025). The notes say it’s too big for this break, and I agree – that’s for experts only, and even then, it’s a gamble. The 12th of August, Wednesday morning, is as close as we get to a standout. The swell drops to a more manageable 7ft from the ENE, the period is a punchy 10 seconds, and the wind is light and cross-off, making it clean. The conditions are described as excellent for experienced surfers. The energy is moderate (1117). That’s the one to circle on your calendar if you’re an advanced surfer looking for a proper session.
After that, it fades. From the 13th through the 16th, we’re back to marginal conditions with onshore or cross-shore winds and dropping swell energy. The weekend of the 16th sees the swell dropping to 5ft to 5ft, but the period is short (8-9 seconds) and the wind is messy, so it’s not going to be pretty.
Best Bet: The 12th of August, Wednesday morning. It’s the only time the elements line up for a clean, powerful wave, but it’s still a solid 7ft, so keep your wits about you. The rest of the run is either blown out, too big, or just plain flat.
Stay patient, check the forecasts again closer to the date, and I’ll be here.
Rusty.
Short Range ForecastMostly dry. Warm (max 30°C on Sat morning, min 22°C on Mon night). Winds increasing (calm on Sat night, fresh winds from the NE by Mon afternoon). | Days 4-6 Weather SummaryLight rain (total 4mm), mostly falling on Thu morning. Warm (max 28°C on Thu morning, min 22°C on Tue night). Mainly fresh winds. | ||||||||||||||||||||
Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | |||||||||||||||
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) | SE 11 | SE 16 | SE 18 | SE 16 | SE 15 | SE 16 | SE 17 | SE 17 | SE 16 | SE 16 | SE 16 | SE 16 | SE 16 | SSE 16 | SSE 16 | SSE 16 | S 16 | S 15 | S 15 | S 15 | S 15 |
Wave Graph | |||||||||||||||||||||
29 | 93 | 152 | 644 | 714 | 1164 | 1972 | 2766 | 3569 | 4549 | 7564 | 7690 | 8277 | 8439 | 8422 | 6999 | 5835 | 3651 | 2903 | 2683 | 1860 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | glassy | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on | on | cross-on | cross | cross | cross | cross | cross-off |
High Tide | 6:31PM1.43m | 5:46AM1.40m | 6:53PM1.44m | 6:31AM1.34m | 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 | ||||||||
Low Tide | 11:50AM0.19m | 00:10AM0.71m | 12:19PM0.28m | 00:48AM0.63m | 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 | ||||||||
4:46 | — | — | 4:47 | — | — | 4:47 | — | — | 4:48 | — | — | 4:48 | — | — | 4:50 | — | — | 4:50 | — | — | |
— | 6:42 | — | — | 6:40 | — | — | 6:39 | — | — | 6:39 | — | — | 6:38 | — | — | 6:37 | — | — | 6:37 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 2 | — | — | — | — |
Temp °C | 30 | 29 | 28 | 27 | 26 | 24 | 24 | 25 | 23 | 24 | 24 | 23 | 25 | 26 | 25 | 28 | 28 | 26 | 28 | 28 | 26 |
Feels °C | 33 | 32 | 33 | 27 | 26 | 24 | 23 | 24 | 21 | 21 | 21 | 21 | 25 | 26 | 27 | 30 | 30 | 29 | 30 | 30 | 28 |
Swell 1 Height (m) Direction Period (s) | S 6 | ESE 10 | ESE 10 | SE 16 | SE 15 | SE 16 | SE 17 | SE 17 | SE 16 | SE 16 | SE 16 | SE 16 | SE 16 | SSE 16 | SSE 16 | SSE 16 | S 16 | S 15 | S 15 | S 15 | S 15 |
17 | 36 | 67 | 644 | 714 | 1164 | 1972 | 2766 | 3569 | 4549 | 7564 | 7690 | 8277 | 8439 | 8422 | 6999 | 5835 | 3651 | 2903 | 2683 | 1860 | |
Swell 2 Height (m) Direction Period (s) | SE 11 | SE 16 | S 6 | SSW 6 | E 15 | E 14 | E 14 | E 14 | E 14 | E 14 | E 13 | E 13 | — | E 11 | E 17 | E 11 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 |
29 | 93 | 16 | 10 | 38 | 65 | 34 | 61 | 59 | 57 | 54 | 87 | — | 661 | 22 | 381 | 363 | 312 | 325 | 332 | 411 | |
Swell 3 Height (m) Direction Period (s) | NE 8 | NE 8 | SE 18 | E 16 | SSW 6 | SW 6 | SE 21 | — | — | — | — | — | — | — | ENE 16 | E 16 | E 16 | E 15 | E 15 | E 15 | E 14 |
14 | 15 | 152 | 43 | 3 | 6 | 162 | — | — | — | — | — | — | — | 26 | 20 | 20 | 41 | 39 | 39 | 35 | |
Wind waves Height (m) Direction Period (s) | SW 6 | S 6 | — | NE 3 | NE 4 | NE 6 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | — | E 10 | E 10 | — | — | — | — | — |
35 | 15 | — | 5 | 37 | 92 | 196 | 249 | 357 | 366 | 471 | 270 | 344 | — | 555 | 524 | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 63 | 74 | 63 | 63 | 77 | 216 | 216 | 63 | 565 | 626 | 63 | 63 | 63 | 74 | 85 | 74 | 125 | 74 |
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.











