Surf Forecasts:
Shida surf forecast from 28 Jul 2026:
- Best quality surf: Monday 3 Aug, 6PM (local time) - 10ft (3.0m), 17s period, SE swell with cross-offshore winds.
- Most powerful swell: Tuesday 4 Aug, 3PM (local time) - 16ft (5.0m), 18s period, SE swell with 18,229 kJ wave energy.
- Next surfable swell (1★+): Tuesday 28 Jul, 3PM (local time) - 2.5ft (0.8m), 8s period with ENE 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 Tuesday (Jul 28) at 3PM. The primary swell is predicted to be 0.8m and 8s 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 5.0m 18s and forecast to arrive on Tuesday (Aug 04) at 3PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 4s period and expected on Tuesday (Jul 28) at 9PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3PM (Tue 28th Jul) | 2.5ft (0.8m) 8s |
| Best Surf | 6PM (Mon 3rd Aug) | 10ft (3.0m) 17s |
| Most Powerful | 3PM (Tue 4th Aug) | 16ft (5.0m) 18s |
Table - best surf conditions forecast for Shida over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s break down what’s happening at Shida over the next couple of weeks.
The start is slow. Tuesday the 28th sees tiny 3ft swell from the ENE, short period of 8 seconds, and wave energy is only moderate (154). The morning is glassy, but the waves are too weak to get excited about. It’s surfable, but barely.
Wednesday the 29th is a step up. A new pulse of SW swell comes in at 5ft, still short period at 7 seconds, but the energy jumps to 329 (moderate). The morning is dead calm, glassy—absolutely clean. That’s the best of the early window. The wind stays light all day, with a clean cross-off in the afternoon. A solid session for an intermediate.
Thursday the 30th drops off again. Swell fades to 2ft, energy sinks to 76 (weak). Glassy start, but the waves are too small. Friday the 31st and Saturday the 1st of August are even worse—poor conditions, messy onshore or cross-shore winds, and tiny swell. A couple of days to skip.
Now, here’s where it gets interesting. Sunday the 2nd of August brings a real change. Swell jumps to 3ft in the morning, building to 4ft in the afternoon, both from the SE with a very long period of 15 to 16 seconds. The combined energy is 500 to 751—strong. Winds are light and clean, offshore in the afternoon. This is a standout session. The wave quality is going to be excellent, but that long period SE groundswell can be a bit straight at beach breaks. It’ll shine at a point or reef.
Monday the 3rd of August is the real highlight. Swell hits 7ft in the morning, 8ft in the afternoon, from the SE, with a period of 16 to 17 seconds. Energy is absolutely pumping—2447 to 3955 (very strong). Winds are light and clean. This is excellent surf, but it’s big. Over 8ft, so this is for experienced surfers only. Beginners, sit this one out.
Tuesday the 4th of August gets too big. Swell is 13ft to 16ft, energy over 10,000. The wind is cross-onshore and choppy. The break is overwhelmed. Same story Wednesday and Thursday—swell up to 28ft, energy in the tens of thousands. This is not paddle surfing; this is heavy, dangerous, and messy. If you’re into kite surfing, the setup might be more interesting.
Friday the 7th to Sunday the 9th of August, the swell drops back to 4ft to 8ft, but the wind is still moderate and the conditions are only marginal. It’s not a total write-off, but it’s not clean or fun. From Monday the 10th onwards, it’s a long stretch of poor conditions—strong winds, onshore, choppy, and no quality. The 16-day window fizzles out.
So, the standout to circle on your calendar is Monday the 3rd of August for experienced surfers. The swell is big, the period is long, and the energy is massive. If you’re intermediate, go for Wednesday the 29th of July or Sunday the 2nd of August—both are clean with good waves, just not as powerful.
Stay safe out there.
Rusty
Short Range ForecastLight rain (total 7mm), mostly falling on Tue night. Warm (max 29°C on Wed afternoon, min 24°C on Tue morning). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 28°C on Fri morning, min 25°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 28 | Wednesday 29 | Thursday 30 | Friday 31 | Saturday 1 | Sunday 2 | Monday 3 | |||||||||||||||
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) | ENE 8 | ENE 8 | ENE 8 | SW 7 | SSW 7 | SSW 7 | S 7 | S 7 | SE 9 | SE 9 | ENE 8 | S 6 | SE 15 | ESE 10 | SE 12 | SE 16 | SE 15 | SE 15 | SE 16 | SE 17 | SE 17 |
Wave Graph  | |||||||||||||||||||||
 kJ | 81 | 75 | 45 | 198 | 163 | 61 | 37 | 39 | 22 | 30 | 22 | 21 | 34 | 35 | 75 | 477 | 704 | 1154 | 2355 | 3859 | 5236 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | off | cross-off | glassy | cross-off | cross-on | glassy | cross-off | glassy | cross-on | cross | cross-on | cross | cross-off | cross-off | cross-off | off | off | cross-off | cross-off | cross-on |
High Tide | 5:03PM1.34m | 2:59AM1.41m | 5:26PM1.37m | 3:43AM1.45m | 5:48PM1.39m | 4:24AM1.46m | 6:10PM1.41m | 5:04AM1.44m | 6:31PM1.43m | 5:46AM1.40m | 6:53PM1.44m | 6:31AM1.34m | 7:15PM1.44m | ||||||||
Low Tide | 9:43AM0.16m | 9:51PM1.01m | 10:18AM0.12m | 10:26PM0.94m | 10:50AM0.11m | 11:00PM0.87m | 11:21AM0.13m | 11:34PM0.79m | 11:50AM0.19m | 00:10AM0.71m | 12:19PM0.28m | 00:48AM0.63m | 12:47PM0.41m | 1:30AM0.56m | |||||||
 | |  |  | | | | |  | | | | | |  | | | | | | | |
 | 4:43 | — | — | 4:43 | — | — | 4:43 | — | — | 4:45 | — | — | 4:46 | — | — | 4:47 | — | — | 4:47 | — | — |
 | — | 6:45 | — | — | 6:45 | — | — | 6:44 | — | — | 6:43 | — | — | 6:42 | — | — | 6:40 | — | — | 6:39 | — |
mm | — | — | 5 | — | — | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 27 | 27 | 28 | 29 | 26 | 29 | 28 | 26 | 28 | 27 | 26 | 27 | 26 | 26 | 28 | 28 | 26 | 28 | 28 | 26 |
Feels °C | 29 | 29 | 29 | 31 | 33 | 30 | 32 | 31 | 30 | 31 | 29 | 29 | 29 | 28 | 29 | 31 | 30 | 29 | 31 | 30 | 29 |
Swell 1 Height (m) Direction Period (s) | ENE 8 | ENE 8 | ENE 8 | SSW 7 | SSW 7 | SSW 7 | S 7 | S 7 | SE 9 | S 6 | S 6 | S 6 | S 6 | ESE 10 | ESE 10 | SE 16 | SE 15 | SE 15 | SE 16 | SE 17 | SE 17 |
| kJ | 81 | 75 | 45 | 79 | 89 | 61 | 37 | 39 | 22 | 20 | 19 | 21 | 9 | 35 | 57 | 477 | 704 | 1154 | 2355 | 3859 | 5236 |
Swell 2 Height (m) Direction Period (s) | SE 10 | SE 10 | SE 10 | SE 10 | ENE 9 | SE 9 | SE 10 | SE 9 | NE 8 | ENE 8 | ENE 8 | ENE 7 | ESE 11 | NE 7 | SE 12 | SSE 5 | E 15 | E 14 | E 14 | E 14 | E 14 |
| kJ | 49 | 35 | 35 | 44 | 27 | 23 | 32 | 31 | 15 | 23 | 22 | 21 | 22 | 25 | 75 | 9 | 38 | 65 | 61 | 60 | 93 |
Swell 3 Height (m) Direction Period (s) | SSW 8 | SSW 8 | SSW 8 | ENE 6 | SE 10 | E 9 | E 8 | ENE 8 | SSW 7 | SE 9 | SE 9 | SE 10 | SE 15 | SSE 5 | NE 7 | NE 7 | NE 7 | NE 7 | — | — | — |
| kJ | 24 | 24 | 14 | 8 | 33 | 14 | 6 | 13 | 10 | 30 | 14 | 15 | 34 | 9 | 13 | 14 | 9 | 8 | — | — | — |
Wind waves Height (m) Direction Period (s) | — | SSE 3 | SSW 4 | SW 7 | SSW 7 | — | ENE 2 | — | S 6 | — | E 3 | ENE 3 | NE 7 | SE 4 | — | — | SE 5 | SE 5 | ENE 7 | ENE 7 | E 6 |
| kJ | — | 2 | 21 | 198 | 163 | — | 1 | — | 9 | — | 1 | 1 | 27 | 6 | — | — | 18 | 13 | 31 | 36 | 52 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 17 | 0 | 0 | 3 | 17 | 17 | 17 | 2440 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 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.
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