
Surf Forecasts:
Shida surf forecast from 15 Jul 2026:
- Best quality surf: Thursday 16 Jul, 9PM (local time) - 3.5ft (1.1m), 9s period, SE swell with offshore winds.
- Most powerful swell: Tuesday 21 Jul, 3PM (local time) - 4.5ft (1.3m), 11s period, E swell with 408 kJ wave energy.
- Next surfable swell (1★+): Wednesday 15 Jul, 3PM (local time) - 1.5ft (0.5m), 8s 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 Wednesday (Jul 15) at 3PM. The primary swell is predicted to be 0.5m and 8s period with a secondary swell of 0.4m and 9s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Shida in the next 16 days are 1.3m 11s and forecast to arrive on Tuesday (Jul 21) at 3PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 6s period and expected on Wednesday (Jul 22) at 12AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3PM (Wed 15th Jul) | 1.5ft (0.5m) 8s |
| Best Surf | 9PM (Thu 16th Jul) | 3.5ft (1.1m) 9s |
| Most Powerful | 3PM (Tue 21st Jul) | 4.5ft (1.3m) 11s |
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 Shida’s got cooking for us.
The next week and a half is a bit of a slow burner, but the second half of the outlook really fires up. We’ve got a solid run of small, clean waves kicking off mid-week, but the real standout is a proper pulse of solid groundswell that moves in right at the end of July and into the start of August. There’s a couple of days of messy cross-onshore wind in there around the 22nd and 23rd, so that’ll be a bit of a write-off.
Alright, let’s get into it. Wednesday the 15th kicks things off with small 2 ft waves from the east, period around 8-9 seconds. The water’s sitting at 76° which is about average for this time of year. The wind is offshore, keeping things clean, but the energy is weak (94). It’s surfable, but it’s pretty ordinary. That pattern holds through Thursday the 16th, with the swell bumping up just a touch to 3 ft, still from the east-southeast. The energy is moderate now (131-159), and the offshore wind stays on it, so it’s clean but still small. By Friday the 17th, the wind shifts cross-offshore, and the conditions are a bit messy—poor surf, so I’d give it a miss.
Saturday the 18th is where it starts to get a bit more interesting. The swell pushes 3 ft to 4 ft, east-southeast, and the energy jumps to moderate-high (273) by the afternoon. The wind is cross-off, but it’s clean. Then Sunday the 19th is the pick of the first week. Glassy conditions in the morning with a light SSE breeze, 4 ft swell from the east-southeast, period 9 seconds, and the energy is really starting to build (265-331). This is the first session that feels genuinely good. Monday the 20th and Tuesday the 21st keep the quality high with offshore winds and the swell holding steady at 4 ft to 4 ft, period stretching out to 10-11 seconds. The energy is strong (329-431). That 11-second period is a nice groundswell pulse, and it’s going to line up nicely at Shida.
Then we hit a bit of a lull. Wednesday the 22nd and Thursday the 23rd are a write-off. The wind swings cross-onshore from the north-east, the swell is a bit choppy, and the conditions are poor. Just forget those days.
Friday the 24th brings a bit of a recovery. The swell is 4 ft to 4 ft from the east-northeast, but the period on the afternoon drops to a short 5 seconds, which is a bit gutless. Still, the wind is clean, so it’s surfable. Saturday the 25th is small again, 2 ft to 3 ft, offshore winds, but it’s just a bit weak.
Now, here’s the big one. Sunday the 26th of July is where the real excitement starts. The swell jumps to 8 ft in the morning, and 8 ft in the afternoon from the east-northeast. The period is 8-10 seconds, and the energy is massive (887-1278). That’s a proper, powerful swell. The wind is offshore, so it’s going to be clean and punchy. This is expert territory—over 8 ft is only for the experienced crew. Monday the 27th continues with 8 ft in the morning (energy over 2000) and 6 ft in the afternoon, still with offshore winds. This is the best run of the whole outlook. The swell direction is east-northeast, which is a good match for the spot’s optimum south-east, but the size and power overrides that.
Tuesday the 28th is still good, 4 ft to 4 ft, but it’s easing off. Then Wednesday the 29th and Thursday the 30th bring a completely different swell. A long-period groundswell from the south rolls in, period 13-16 seconds, size 5 ft to 6 ft. The energy is very strong (1191-2339). That 15-16 second period is very long, and it’s coming from the south, which is a solid direction for Shida. The wind is light and offshore or cross-offshore, so it’s clean. This is a beautiful, mellow, long-period groundswell that’s going to offer some lovely, lined-up waves. It’s a quieter, more refined alternative to the bigger, punchier east swell earlier in the week.
So, to wrap it up, the standout is Sunday the 26th through Monday the 27th of July for the big, powerful, offshore east-northeast swell. That’s the one for the experienced crew. The second standout, for a completely different vibe, is Wednesday the 29th and Thursday the 30th of July for the long-period south groundswell with clean conditions. That’s a session for the connoisseur.
This is Rusty, signing off.
Short Range ForecastLight rain (total 4mm), mostly falling on Thu night. Warm (max 28°C on Wed morning, min 25°C on Fri night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 28°C on Mon morning, min 24°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | |||||||||||||||
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) | E 9 | E 8 | E 9 | ESE 8 | ESE 9 | ESE 8 | E 8 | ESE 8 | ESE 8 | E 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | E 9 | E 9 | E 10 | E 11 | E 11 | E 11 | E 11 |
Wave Graph | |||||||||||||||||||||
39 | 31 | 96 | 120 | 123 | 188 | 90 | 118 | 125 | 154 | 249 | 245 | 249 | 254 | 202 | 205 | 277 | 379 | 372 | 408 | 387 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | off | off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | glassy | off | cross-off | off | off | cross-off | off | off | cross-off |
High Tide | 6:05PM1.44m | 4:15AM1.54m | 6:35PM1.43m | 5:07AM1.50m | 7:03PM1.43m | 5:58AM1.43m | 7:29PM1.42m | 6:50AM1.32m | 7:54PM1.41m | 7:46AM1.20m | 8:19PM1.40m | 8:53AM1.09m | 8:46PM1.39m | ||||||||
Low Tide | 10:49AM-0.09m | 10:59PM0.98m | 11:31AM-0.03m | 11:44PM0.89m | 12:09PM0.08m | 00:29AM0.80m | 12:44PM0.22m | 1:16AM0.71m | 1:17PM0.39m | 2:06AM0.64m | 1:46PM0.56m | 3:00AM0.58m | 2:13PM0.72m | ||||||||
4:33 | — | — | 4:33 | — | — | 4:35 | — | — | 4:35 | — | — | 4:35 | — | — | 4:37 | — | — | 4:37 | — | — | |
— | 6:53 | — | — | 6:52 | — | — | 6:52 | — | — | 6:52 | — | — | 6:52 | — | — | 6:51 | — | — | 6:50 | — | |
mm | — | — | — | — | — | 3 | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | 2 |
Temp °C | 28 | 28 | 27 | 28 | 28 | 26 | 27 | 27 | 25 | 27 | 27 | 25 | 27 | 27 | 25 | 28 | 28 | 26 | 29 | 29 | 26 |
Feels °C | 31 | 30 | 30 | 31 | 31 | 29 | 29 | 29 | 28 | 29 | 28 | 27 | 29 | 28 | 28 | 29 | 29 | 29 | 31 | 31 | 30 |
Swell 1 Height (m) Direction Period (s) | E 9 | E 8 | E 9 | ESE 8 | ESE 9 | SE 10 | E 8 | ESE 8 | ESE 8 | E 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | E 9 | E 9 | E 10 | E 11 | E 11 | E 11 | E 11 |
39 | 31 | 96 | 120 | 123 | 14 | 90 | 118 | 125 | 154 | 249 | 245 | 249 | 254 | 202 | 205 | 277 | 379 | 372 | 408 | 387 | |
Swell 2 Height (m) Direction Period (s) | SSW 10 | SSW 9 | SSW 9 | SSW 9 | SW 8 | SSW 8 | SE 10 | SE 9 | SE 8 | SE 8 | SE 8 | S 8 | S 8 | S 8 | SE 8 | SSE 9 | SE 9 | SSE 8 | SSE 8 | SSE 8 | SSW 6 |
31 | 28 | 16 | 7 | 18 | 6 | 23 | 22 | 18 | 18 | 17 | 5 | 10 | 11 | 28 | 30 | 19 | 22 | 12 | 11 | 28 | |
Swell 3 Height (m) Direction Period (s) | SE 10 | ESE 9 | SSE 9 | S 14 | SE 11 | SE 9 | SSW 8 | SSW 8 | SW 7 | SW 7 | SE 13 | SW 7 | SE 13 | SE 12 | S 8 | S 7 | E 14 | ESE 12 | SSE 8 | ESE 11 | SSE 7 |
24 | 16 | 8 | 4 | 18 | 14 | 6 | 6 | 2 | 2 | 7 | 2 | 6 | 6 | 11 | 4 | 33 | 13 | 12 | 12 | 5 | |
Wind waves Height (m) Direction Period (s) | SSW 3 | S 3 | S 5 | S 5 | S 4 | ESE 8 | SSE 4 | S 4 | S 4 | S 4 | — | — | — | SE 8 | — | — | S 3 | SSW 3 | SSW 4 | SSW 4 | SW 6 |
2 | 6 | 35 | 31 | 26 | 188 | 25 | 9 | 3 | 1 | — | — | — | 60 | — | — | 3 | 3 | 16 | 21 | 80 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 115 | 608 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Chiba | |||||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)
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.










