Surf Forecasts:
Shida surf forecast from 1 Sep 2026:
- Best quality surf: Tuesday 8 Sep, 3AM (local time) - 10ft (3.0m), 10s period, SSE swell with cross-shore winds.
- Most powerful swell: Tuesday 8 Sep, 3PM (local time) - 10ft (3.0m), 11s period, SSE swell with 2,132 kJ wave energy.
- Next surfable swell (1★+): Wednesday 2 Sep, 3AM (local time) - 3ft (0.9m), 11s period with ESE 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 (Sep 02) at 3AM. The primary swell is predicted to be 0.9m and 11s period with a secondary swell of 0.8m and 7s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Shida in the next 16 days are 3.0m 11s and forecast to arrive on Tuesday (Sep 08) at 3PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 3s period and expected on Thursday (Sep 03) at 3AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Wed 2nd Sep) | 3ft (0.9m) 11s |
| Best Surf | 3AM (Tue 8th Sep) | 10ft (3.0m) 10s |
| Most Powerful | 3PM (Tue 8th Sep) | 10ft (3.0m) 11s |
Table - best surf conditions forecast for Shida over the next 16 days.
The Lowdown
Alright, Rusty here, checking in on your local surf. We’ve got a bit of a waiting game on our hands. The first week or so is mostly a write-off, but there’s a serious pulse of energy on the horizon for the brave and the patient.
Right now through most of the first week, it’s ugly out there. We’re looking at small, choppy, cross-onshore slop with combined wave energy barely cracking 200–300 (weak). The wind is just all wrong, and it’s rain on and off. Honestly, nothing is worth paddling out for. Shida is a no-go. There’s a solid run of poor to marginal days from the 1st right through to the 7th of September. You can pretty much write off that entire first chunk.
But then, things change. Tuesday the 8th of September is our first real standout. Shida wakes up proper. The morning session is glassy – dead calm wind (0 mph) – and we’ve got a solid groundswell pushing in from the SSE at 8 ft with a 10-second period. The wave energy is strong (1412). That’s expert-level size, but if you’ve got the skills, it’s going to be clean, powerful, and empty. The water temp here is 82°, which is a touch warmer than normal for this time of year, so you can get away with a shorty.
After that, the swell pumps up even bigger – we’re talking 10 to 13 ft+ from the SSE from the 9th through the 11th – but it gets messy with strong cross-onshore winds and it’s just too big for Shida (energy readings up around 4000-4700). That’s strictly for chargers on the right craft, or maybe consider it more of a kitesurfing setup if you’re into that.
Then we get a bit of a lull. The 12th and 13th of September drop back to around 6 to 7 ft with cleaner conditions as the wind swings cross-off from the SE. The energy is moderate (700-1300 range). It’s surfable, not epic.
Now, the real long-range promise. On the 15th of September (Tuesday), we get a monster pulse: a very long period groundswell from the ESE at 18 ft with a 14-second period. That wave energy reading is off the charts – 11864 – but that’s way too big for this spot. Only for the most experienced. The wind is offshore though, so it would be clean, just massive. The morning of the 16th looks more manageable, dropping to 7 ft from the NE, still clean, but still a solid expert wave.
The only real pick for most of us is Tuesday the 8th of September morning at Shida – glassy, big, and clean. It’s a short window before it gets too wild. Keep an eye on that one.
Stay salty.
Rusty
Short Range ForecastModerate rain (total 15mm), heaviest on Thu morning. Warm (max 27°C on Wed morning, min 22°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 169mm), heaviest during Fri afternoon. Warm (max 25°C on Sun night, min 19°C on Fri night). Mainly strong winds. | ||||||||||||||||||||
Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 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) | ESE 12 | ESE 11 | ESE 11 | ESE 10 | ESE 10 | E 11 | ESE 10 | E 10 | E 10 | SE 8 | SE 7 | SSW 9 | S 8 | S 8 | ENE 10 | ENE 5 | ENE 6 | ENE 6 | ENE 6 | ESE 7 | SSE 10 |
Wave Graph | |||||||||||||||||||||
193 | 214 | 210 | 146 | 111 | 235 | 104 | 71 | 68 | 108 | 147 | 99 | 68 | 46 | 51 | 125 | 141 | 131 | 241 | 310 | 746 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross | cross-off | off | off | cross-off | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-off |
High Tide | 6:18PM1.49m | 7:19AM1.27m | 6:41PM1.49m | 8:22AM1.16m | 7:06PM1.46m | 10:01AM1.07m | 7:36PM1.42m | 8:18PM1.36m | 3:35PM1.23m | 9:56PM1.28m | 3:22PM1.30m | 00:17AM1.28m | |||||||||
Low Tide | 12:15PM0.58m | 00:57AM0.32m | 12:40PM0.73m | 1:43AM0.31m | 1:03PM0.88m | 2:39AM0.32m | 1:15PM1.01m | 3:57AM0.35m | 5:37AM0.34m | 5:38PM1.22m | 7:05AM0.27m | 7:55PM1.13m | |||||||||
5:09 | — | — | 5:09 | — | — | 5:11 | — | — | 5:11 | — | — | 5:11 | — | — | 5:13 | — | — | 5:13 | — | — | |
— | 6:06 | — | — | 6:05 | — | — | 6:04 | — | — | 6:01 | — | — | 6:00 | — | — | 5:59 | — | — | 5:58 | — | |
mm | — | — | — | — | — | — | 4 | 3 | 8 | 13 | 56 | 49 | 3 | 2 | 3 | 2 | 2 | 39 | 20 | 1 | 14 |
Temp °C | 26 | 26 | 25 | 27 | 27 | 26 | 27 | 27 | 24 | 23 | 20 | 20 | 22 | 23 | 23 | 22 | 23 | 25 | 24 | 25 | 24 |
Feels °C | 27 | 28 | 27 | 30 | 29 | 29 | 31 | 30 | 26 | 25 | 17 | 15 | 20 | 19 | 19 | 18 | 21 | 26 | 23 | 27 | 27 |
Swell 1 Height (m) Direction Period (s) | ESE 12 | ESE 11 | ESE 11 | ESE 10 | ESE 10 | E 11 | ESE 10 | S 8 | SE 6 | SE 8 | SE 7 | SSW 9 | S 8 | S 8 | SE 8 | SSE 8 | SE 7 | SE 7 | SE 8 | SSE 9 | SSE 10 |
193 | 214 | 210 | 146 | 111 | 235 | 104 | 51 | 51 | 108 | 147 | 99 | 68 | 46 | 39 | 42 | 51 | 89 | 164 | 66 | 746 | |
Swell 2 Height (m) Direction Period (s) | SSW 8 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | S 8 | S 8 | E 10 | E 10 | S 10 | S 10 | SE 7 | E 9 | SE 8 | ENE 10 | SSW 9 | SSW 9 | SE 11 | S 10 | S 10 | SE 10 |
14 | 59 | 56 | 49 | 37 | 36 | 50 | 71 | 68 | 71 | 47 | 65 | 55 | 45 | 51 | 8 | 8 | 19 | 19 | 64 | 26 | |
Swell 3 Height (m) Direction Period (s) | ESE 15 | SSW 9 | SSW 8 | SSW 8 | SSW 8 | SE 10 | ENE 6 | SE 5 | SSW 8 | E 9 | E 9 | E 7 | SE 7 | ESE 9 | S 8 | ESE 9 | SE 11 | SSW 9 | SE 11 | SE 8 | E 11 |
21 | 15 | 14 | 14 | 23 | 24 | 14 | 13 | 24 | 41 | 40 | 32 | 34 | 26 | 32 | 8 | 5 | 9 | 20 | 15 | 2 | |
Wind waves Height (m) Direction Period (s) | ENE 7 | — | — | — | — | — | — | — | WNW 2 | NE 4 | — | — | — | NE 4 | ENE 5 | ENE 5 | ENE 6 | ENE 6 | ENE 6 | ESE 7 | E 7 |
86 | — | — | — | — | — | — | — | 1 | 3 | — | — | — | 10 | 48 | 125 | 141 | 131 | 241 | 310 | 131 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 17 | 17 | 17 | 56 | 0 | 0 | 0 | 0 | 1 | 17 | 208 | 216 | 84 | 1556 | 626 | 544 | 544 | 303 | 208 | 1 | 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.











