
Surf Forecasts:
Shida surf forecast from 22 Jul 2026:
- Best quality surf: Thursday 23 Jul, 12AM (local time) - 2.5ft (0.8m), 10s period, E swell with cross-offshore winds.
- Most powerful swell: Tuesday 28 Jul, 3AM (local time) - 6ft (1.8m), 7s period, SW swell with 271 kJ wave energy.
- Next surfable swell (1★+): Thursday 23 Jul, 12AM (local time) - 2.5ft (0.8m), 10s 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 Thursday (Jul 23) at 12AM. The primary swell is predicted to be 0.8m and 10s period with a secondary swell of 0.2m and 11s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Shida in the next 16 days are 1.8m 7s and forecast to arrive on Tuesday (Jul 28) at 3AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 6s period and expected on Thursday (Jul 23) at 6AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Thu 23rd Jul) | 2.5ft (0.8m) 10s |
| Best Surf | 12AM (Thu 23rd Jul) | 2.5ft (0.8m) 10s |
| Most Powerful | 3AM (Tue 28th Jul) | 6ft (1.8m) 7s |
Table - best surf conditions forecast for Shida over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s break it down.
For Shida, the first week and a half is pretty quiet. The swell is small and the winds are messy. The water’s about 78°, which is pretty standard for the season.
From Wednesday afternoon, July 22nd, right through the end of July, it’s mostly poor conditions. Waves are tiny, 1 to 3 feet, with cross-on or cross-off breezes making it choppy. The energy is weak – under 200 for most of it. Not worth the paddle. There’s a few afternoons where it cleans up, like Friday the 24th and Sunday the 26th, but the waves are so small it’s barely surfable.
From Monday, July 29th, to the end of the month, it’s the same: small, weak, messy. Energy stays under 112. Skip it.
Saturday, August 1st, the swell starts building: 5 to 6 feet from the ESE, with a 16-17 second period – that’s a proper groundswell. Energy jumps to 1425 then 1556, so there’s some punch. But the wind is cross-on from the NE and NNE, so it’s choppy. Marginal.
Sunday, August 2nd, the swell gets bigger: 7 to 8 feet, ESE, 16-17 seconds. Energy now at 2578 and 2882 – strong. Wind is onshore in the morning (NNE 15 mph), then cross-on in the afternoon. Still not clean. This is getting big enough that beginners should stay out, and the wind won’t help.
Monday, August 3rd, we’re looking at 10 foot swell, ESE, 18 seconds. Energy is massive: 4767 and 4885. Wind is offshore from the SSW at 12 mph, so it’s clean. But the comment says it’s predicted to be too big for this break. At 10 feet, that’s expert-only. The long period means long lulls, but when sets come, they’ll be heavy.
The standout is Tuesday, August 4th. Swell drops to a more manageable 8 feet in the morning, then 7 feet in the afternoon, still from the ESE with 15-16 second period. Energy is still strong (2756 then 1719). And the wind is offshore from the SSW, 9-12 mph, making for clean faces. The forecast says “excellent for experienced surfers.” This is the best window. Crowds are “often” at Shida, so expect a lineup.
Wednesday, August 5th, drops to 4-foot range, 12-second period, energy around 400-500. Offshore wind in the morning, cross-off in the afternoon. Good conditions for a wider range of surfers.
Thursday, August 6th, is small again: 3 to 3 feet, glassy morning (WSW 3 mph). Energy 169. Very ordinary.
So, to sum it up: if you’re experienced and want the best shot at clean, solid waves, Tuesday, August 4th is the day. Monday the 3rd has the size and offshore wind but might be too big. Tuesday the 4th is the sweet spot.
Rusty.
Short Range ForecastMostly dry. Warm (max 31°C on Wed afternoon, min 24°C on Fri night). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 45mm), heaviest during Tue morning. Warm (max 28°C on Sun afternoon, min 22°C on Mon night). Wind will be generally light. | |||||||||||||||||||
Wed 22 | Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | Monday 27 | Tuesday 28 | ||||||||||||||
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) | E 10 | E 10 | E 10 | E 9 | E 9 | E 9 | SE 11 | SE 10 | SE 10 | SE 16 | SE 15 | SE 15 | SE 15 | SE 10 | SE 14 | ESE 10 | SSW 7 | SSW 7 | S 7 | SE 10 |
Wave Graph | ||||||||||||||||||||
156 | 121 | 87 | 81 | 58 | 57 | 57 | 51 | 48 | 63 | 57 | 55 | 64 | 51 | 70 | 88 | 234 | 75 | 57 | 47 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-on | cross | cross-on | cross-on | cross-off | glassy | on | cross-on | cross-on | cross-off | off | cross-off | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 9:16PM1.36m | 12:53PM1.01m | 9:55PM1.33m | 3:31PM1.10m | 10:50PM1.30m | 3:52PM1.18m | 00:02AM1.29m | 4:16PM1.25m | 1:12AM1.32m | 4:40PM1.30m | 2:10AM1.36m | 5:03PM1.34m | 2:59AM1.41m | |||||||
Low Tide | 5:08AM0.49m | 3:04PM1.00m | 6:19AM0.44m | 4:23PM1.10m | 7:24AM0.37m | 7:04PM1.14m | 8:18AM0.29m | 8:25PM1.11m | 9:03AM0.22m | 9:14PM1.06m | 9:43AM0.16m | 9:51PM1.01m | ||||||||
— | — | 4:39 | — | — | 4:39 | — | — | 4:41 | — | — | 4:41 | — | — | 4:41 | — | — | 4:43 | — | — | |
6:50 | — | — | 6:49 | — | — | 6:49 | — | — | 6:47 | — | — | 6:46 | — | — | 6:45 | — | — | 6:45 | — | |
mm | — | — | — | — | — | — | — | — | — | 3 | 3 | 3 | — | 7 | — | — | 7 | 22 | 1 | — |
Temp °C | 31 | 27 | 29 | 29 | 27 | 27 | 27 | 26 | 27 | 26 | 25 | 27 | 28 | 26 | 25 | 25 | 23 | 23 | 24 | 23 |
Feels °C | 33 | 30 | 32 | 33 | 30 | 30 | 30 | 29 | 29 | 28 | 28 | 29 | 30 | 28 | 25 | 25 | 23 | 24 | 25 | 24 |
Swell 1 Height (m) Direction Period (s) | E 10 | E 10 | E 10 | E 9 | E 9 | E 9 | E 9 | ESE 4 | E 8 | SE 10 | ENE 6 | ENE 6 | SE 10 | SE 10 | SE 10 | ESE 10 | SSW 7 | SSW 7 | S 7 | S 7 |
156 | 121 | 87 | 81 | 58 | 57 | 39 | 11 | 35 | 49 | 21 | 26 | 64 | 51 | 51 | 88 | 137 | 75 | 57 | 32 | |
Swell 2 Height (m) Direction Period (s) | SSE 11 | SSE 11 | SSW 6 | SSW 6 | SE 10 | SE 9 | SE 11 | E 9 | SE 10 | E 8 | SE 10 | SE 10 | ENE 6 | E 6 | ENE 10 | NE 10 | SE 10 | ESE 10 | SE 10 | SE 10 |
12 | 11 | 27 | 22 | 24 | 22 | 57 | 36 | 48 | 22 | 50 | 53 | 18 | 17 | 41 | 24 | 63 | 67 | 48 | 47 | |
Swell 3 Height (m) Direction Period (s) | SE 8 | SE 8 | SE 10 | SE 10 | SSW 5 | SE 18 | SE 17 | SE 10 | SE 4 | SE 16 | SE 15 | SE 15 | SE 15 | ENE 10 | SE 14 | SE 14 | E 7 | SE 13 | SE 13 | SE 13 |
2 | 2 | 25 | 25 | 6 | 49 | 43 | 51 | 6 | 63 | 57 | 55 | 54 | 41 | 70 | 47 | 8 | 27 | 27 | 27 | |
Wind waves Height (m) Direction Period (s) | SSW 5 | SSW 5 | — | ENE 3 | ENE 3 | NE 3 | E 4 | — | — | ENE 6 | — | — | SSE 4 | SSE 3 | S 4 | SSW 5 | SSW 7 | NE 4 | NE 4 | ENE 5 |
40 | 23 | — | 1 | 1 | 3 | 6 | — | — | 12 | — | — | 2 | 4 | 10 | 24 | 234 | 12 | 18 | 14 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 1502 | 0 | 17 | 17 | 17 | 17 | 0 | 0 | 3 | 70 | 17 | 0 | 0 | 63 | 70 | 63 | 115 | 63 | 63 | 17 |
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.










