Surf Forecasts:
Shida surf forecast from 31 Jul 2026:
- Best quality surf: Tuesday 4 Aug, 12AM (local time) - 10ft (3.0m), 16s period, SE swell with cross-onshore winds.
- Most powerful swell: Thursday 6 Aug, 6AM (local time) - 15ft (4.5m), 17s period, SSE swell with 10,762 kJ wave energy.
- Next surfable swell (1★+): Friday 31 Jul, 3PM (local time) - 2.5ft (0.7m), 6s period with S 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 Friday (Jul 31) at 3PM. The primary swell is predicted to be 0.7m and 6s period with a secondary swell of 0.3m and 9s. 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 4.5m 17s and forecast to arrive on Thursday (Aug 06) at 6AM. Winds are predicted to be cross-shore at the time the swell arrives.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3PM (Fri 31st Jul) | 2.5ft (0.7m) 6s |
| Best Surf | 12AM (Tue 4th Aug) | 10ft (3.0m) 16s |
| Most Powerful | 6AM (Thu 6th Aug) | 15ft (4.5m) 17s |
Table - best surf conditions forecast for Shida over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s get stuck into what’s on offer for Shida.
First up, the water temperature is sitting at 79°, which is pretty much bang on average for this time of year, so no surprises there.
The outlook starts off quiet. We’ve got tiny surf from Friday the 31st of July through Saturday the 1st of August, with swells around 1ft to 2ft. The wind is light and swings from glassy to gentle offshore, so the conditions are clean, but the wave size is just too small to get excited about. The combined swell energy is weak (84 to 60 to 53), so it’s really more of a paddle-around day.
Things start to pick up on Sunday the 2nd of August. The morning sees a jump to 4ft from the SE with a long 16-second period, and the combined energy climbs to 622 (moderate). The wind is light and cross-shore, so it’s a bit rippled but still surfable. This is a solid option for an intermediate surfer, but keep in mind Shida is an inconsistent break, and crowds are often here. The long period groundswell is better suited to points and reefs, but at this size it should still offer some fun lines.
The real standout, though, is Saturday the 8th of August. After a run of big, messy, cross-onshore slop that’s way too big for this break from the 3rd through the 7th, we finally get a window. On Saturday morning, the swell drops to 4ft from the SSW with a 14-second period, and the wind is light and cross-offshore, making for clean conditions. The combined energy is 1225 (strong). This is excellent for experienced surfers – the waves will have punch and shape, and the offshore wind will keep the faces smooth. The afternoon holds similar quality with 4ft from the S and a 12-second period, still clean. This is the best on offer in the whole 16-day window. If you can get out there, do it.
After that, the run from Sunday the 9th of August through to the end of the period sees a return to choppy, windy conditions and onshore winds, with the swell staying around 4ft to 6ft but the quality dropping right off. The combined energy drops back to moderate levels, and the wind is mostly cross-on or onshore, making for messy, lumpy surf. Not worth the effort.
So in a nutshell: the first few days are tiny, there’s a big, ugly, too-large swell in the middle of the first week, and the only real highlight is Saturday the 8th of August. That’s your day.
Stay safe out there.
Rusty.
Short Range ForecastMostly dry. Warm (max 29°C on Sat morning, min 23°C on Sun night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 26°C on Tue morning, min 23°C on Tue night). Wind will be generally light. | ||||||||||||||||||||
Friday 31 | Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | |||||||||||||||
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) | SSW 6 | S 6 | SE 9 | SE 11 | SE 16 | SE 18 | SE 16 | SE 15 | SE 15 | SE 16 | SE 18 | SE 16 | SE 16 | SE 16 | SE 16 | SSE 16 | SSE 16 | SSE 17 | SSE 17 | SSE 16 | S 15 |
Wave Graph  | |||||||||||||||||||||
 kJ | 41 | 41 | 31 | 29 | 93 | 152 | 560 | 714 | 949 | 2247 | 4257 | 4062 | 6355 | 6021 | 6591 | 6747 | 8098 | 9591 | 10731 | 8653 | 4774 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-off | cross-off | glassy | off | glassy | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross-off | cross-off |
High Tide | 6:10PM1.41m | 5:04AM1.44m | 6:31PM1.43m | 5:46AM1.40m | 6:53PM1.44m | 6:31AM1.34m | 7:15PM1.44m | 7:22AM1.25m | 7:38PM1.44m | 8:23AM1.15m | 8:04PM1.43m | 9:51AM1.06m | 8:36PM1.41m | ||||||||
Low Tide | 11:21AM0.13m | 11:34PM0.79m | 11:50AM0.19m | 00:10AM0.71m | 12:19PM0.28m | 00:48AM0.63m | 12:47PM0.41m | 1:30AM0.56m | 1:15PM0.56m | 2:18AM0.49m | 1:44PM0.72m | 3:16AM0.44m | 2:11PM0.89m | ||||||||
 | |  | |  |  | | | | | | | | | | | | | | | | |
 | 4:45 | — | — | 4:46 | — | — | 4:47 | — | — | 4:47 | — | — | 4:48 | — | — | 4:48 | — | — | 4:50 | — | — |
 | — | 6:43 | — | — | 6:42 | — | — | 6:40 | — | — | 6:39 | — | — | 6:39 | — | — | 6:38 | — | — | 6:37 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 28 | 28 | 27 | 29 | 29 | 28 | 29 | 26 | 24 | 25 | 25 | 24 | 26 | 26 | 24 | 26 | 26 | 26 | 28 | 28 | 26 |
Feels °C | 31 | 31 | 31 | 32 | 32 | 33 | 33 | 26 | 24 | 25 | 25 | 25 | 26 | 26 | 25 | 27 | 28 | 30 | 30 | 31 | 30 |
Swell 1 Height (m) Direction Period (s) | SSW 6 | S 6 | S 6 | SSW 6 | S 6 | ESE 10 | SE 16 | SE 15 | SE 15 | SE 16 | SE 18 | SE 16 | SE 16 | SE 16 | SE 16 | SSE 16 | SSE 16 | SSE 17 | SSE 17 | SSE 16 | S 15 |
| kJ | 41 | 41 | 29 | 10 | 15 | 67 | 560 | 714 | 949 | 2247 | 4257 | 4062 | 6355 | 6021 | 6591 | 6747 | 8098 | 9591 | 10731 | 8653 | 4774 |
Swell 2 Height (m) Direction Period (s) | SE 9 | SE 9 | SE 9 | SE 11 | SE 16 | SE 18 | ESE 10 | E 15 | E 14 | E 14 | E 14 | E 14 | E 13 | E 13 | E 13 | ENE 12 | E 10 | E 10 | E 16 | E 16 | ESE 10 |
| kJ | 30 | 13 | 31 | 29 | 93 | 152 | 52 | 38 | 65 | 61 | 61 | 59 | 90 | 53 | 86 | 50 | 358 | 302 | 20 | 20 | 173 |
Swell 3 Height (m) Direction Period (s) | ENE 8 | ENE 8 | NE 8 | NE 8 | ESE 10 | SE 14 | SSW 5 | SSW 5 | SW 6 | E 14 | — | — | — | — | — | E 18 | — | ENE 16 | ENE 16 | ENE 16 | E 15 |
| kJ | 13 | 6 | 14 | 14 | 36 | 103 | 10 | 6 | 8 | 96 | — | — | — | — | — | 25 | — | 26 | 51 | 51 | 41 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | NE 3 | NE 5 | NE 4 | NE 7 | ENE 7 | NE 7 | ENE 7 | — | NE 7 | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | 6 | 42 | 27 | 193 | 153 | 235 | 160 | — | 49 | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 3 | 0 | 0 | 0 | 0 | 0 | 17 | 115 | 63 | 63 | 63 | 23 | 63 | 63 | 63 | 63 | 63 | 63 | 63 | 115 | 63 |
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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