Surf Forecasts:
Shida surf forecast from 18 Jul 2026:
- Best quality surf: Sunday 19 Jul, 3AM (local time) - 4ft (1.2m), 9s period, ESE swell with offshore winds.
- Most powerful swell: Monday 20 Jul, 9PM (local time) - 4ft (1.2m), 11s period, E swell with 342 kJ wave energy.
- Next surfable swell (1★+): Sunday 19 Jul, 3AM (local time) - 4ft (1.2m), 9s 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 Sunday (Jul 19) at 3AM. The primary swell is predicted to be 1.2m and 9s period with a secondary swell of 0.2m and 8s. Another secondary swell of 0.7m and 8s is also forecast. 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 0.8m 4s period and expected on Wednesday (Jul 22) at 3PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Sun 19th Jul) | 4ft (1.2m) 9s |
| Best Surf | 3AM (Sun 19th Jul) | 4ft (1.2m) 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, gents, Rusty here with the lowdown on Shida. Let’s cut through the noise.
The first few days are dead quiet, so don’t even bother checking the cams until Sunday the 19th. That’s when the first little pulse shows up.
Sunday morning the 19th: a 4ft swell out of the ESE, 9-second period, light offshore wind. The water’s clean, the energy is moderate (302). It’s a fun, small wave that’ll have you cruising. The water temp is about normal for this time of year.
The pattern holds through Monday and Tuesday. Tuesday morning the 21st is the pick of the first week: 4ft from the east, 10-second period, light offshore wind, glassy. The energy is moderate (295). That’s a morning to get out there.
Then it gets ugly from Wednesday the 22nd through the 26th. Cross-onshore wind, chop, small swell. Not worth a look.
Alright, the big news is Monday the 27th of July. Monday morning: 6ft from the SSE, 14-second period, light cross-offshore wind, clean. The energy is very strong (1493). Monday afternoon is the real stand-out: 8ft from the SSE, 16-second period, clean, gentle offshore wind. The energy is enormous (3005). This is a serious groundswell for the crew that knows what they’re doing.
Tuesday the 28th and Wednesday the 29th are for the elite. The swell is 13ft to 21ft, with extreme energy (up to 38287). It’s too big for most people, but the wind is offshore, so it’ll be a show for the big-wave boys.
After that, Thursday the 30th brings a more manageable 5ft to 6ft from the SSE, with moderate offshore wind and clean conditions. The energy is strong (907). Good finish to the month.
August starts with a bit of a whimper. The first few days are small, onshore, and messy. That long-period groundswell on the 2nd of August is just too small and choppy.
To put it simply: the best sessions are Tuesday morning the 21st for a clean, fun wave, and Monday the 27th of July for the big, powerful groundswell. The 28th and 29th are for the experts only. The rest is a bit of a gamble.
Rusty out.
Short Range ForecastMostly dry. Warm (max 30°C on Tue morning, min 25°C on Sat night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 4mm), mostly falling on Wed night. Warm (max 31°C on Wed afternoon, min 23°C on Thu night). Wind will be generally light. | ||||||||||||||||||
Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | ||||||||||||||
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 | 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 | ENE 8 |
Wave Graph  | |||||||||||||||||||
 kJ | 232 | 232 | 165 | 127 | 119 | 116 | 335 | 262 | 247 | 192 | 156 | 153 | 118 | 113 | 81 | 58 | 57 | 57 | 127 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | off | cross-off | off | cross-off | off | off | cross-off | cross-off | cross-off | cross-off | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 6:50AM1.32m | 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 | |||||||
Low Tide | 1:16AM0.71m | 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 | |||||||
 |  |  |  | | | | | | | | |  |  | | |  | | | |
 | — | 4:35 | — | — | 4:37 | — | — | 4:37 | — | — | 4:39 | — | — | 4:39 | — | — | 4:39 | — | — |
 | 6:52 | — | 6:52 | — | — | 6:51 | — | — | 6:50 | — | — | 6:50 | — | — | 6:49 | — | — | 6:49 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 2 | — | — | — | — | — |
Temp °C | 25 | 27 | 27 | 26 | 29 | 29 | 27 | 30 | 30 | 27 | 30 | 31 | 27 | 27 | 26 | 24 | 25 | 25 | 24 |
Feels °C | 27 | 29 | 29 | 29 | 31 | 31 | 30 | 33 | 32 | 30 | 32 | 32 | 30 | 28 | 26 | 24 | 25 | 25 | 25 |
Swell 1 Height (m) Direction Period (s) | ESE 9 | 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 | SE 10 |
| kJ | 232 | 232 | 165 | 127 | 119 | 116 | 335 | 262 | 247 | 192 | 156 | 153 | 118 | 113 | 81 | 58 | 57 | 56 | 54 |
Swell 2 Height (m) Direction Period (s) | SE 7 | S 8 | SE 7 | S 8 | S 7 | E 14 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSW 4 | SSE 7 | SSE 11 | S 6 | SSW 6 | SSE 10 | SE 9 | SE 11 | SE 16 |
| kJ | 14 | 10 | 13 | 5 | 4 | 34 | 13 | 13 | 12 | 11 | 11 | 5 | 11 | 16 | 13 | 37 | 22 | 57 | 66 |
Swell 3 Height (m) Direction Period (s) | S 8 | SE 12 | S 8 | SSE 11 | SE 12 | SSE 7 | SE 11 | SE 11 | SE 11 | ESE 11 | SSE 8 | SSE 11 | SSE 7 | SE 10 | SE 10 | SE 18 | SE 18 | SE 17 | S 7 |
| kJ | 5 | 6 | 11 | 13 | 6 | 4 | 5 | 20 | 19 | 12 | 6 | 12 | 5 | 25 | 25 | 49 | 49 | 43 | 1 |
Wind waves Height (m) Direction Period (s) | — | SSE 8 | S 4 | SSE 7 | S 7 | SSW 4 | SW 4 | SW 4 | SSW 4 | SSW 4 | SW 4 | SSW 4 | SSW 4 | — | ENE 4 | NE 4 | NE 5 | NE 5 | ENE 8 |
| kJ | — | 54 | 10 | 41 | 25 | 10 | 7 | 9 | 14 | 8 | 21 | 22 | 10 | — | 12 | 29 | 30 | 31 | 127 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1488 | 0 | 70 | 1502 | 70 | 66 | 66 | 70 |
Best forecast wave conditions in Chiba | |||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Shida surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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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