Surf Forecasts:
Shida surf forecast from 30 Aug 2026:
- Best quality surf: Wednesday 2 Sep, 12AM (local time) - 3ft (0.9m), 11s period, ESE swell with glassy winds.
- Most powerful swell: Monday 7 Sep, 3AM (local time) - 7ft (2.2m), 8s period, ESE swell with 676 kJ wave energy.
- Next surfable swell (1★+): Wednesday 2 Sep, 12AM (local time) - 3ft (0.9m), 11s 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 Wednesday (Sep 02) at 12AM. The primary swell is predicted to be 0.9m and 11s period with a secondary swell of 0.6m and 7s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Shida in the next 16 days are 2.2m 8s and forecast to arrive on Monday (Sep 07) 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 0.9m 5s period and expected on Thursday (Sep 03) at 3AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Wed 2nd Sep) | 3ft (0.9m) 11s |
| Best Surf | 12AM (Wed 2nd Sep) | 3ft (0.9m) 11s |
| Most Powerful | 3AM (Mon 7th Sep) | 7ft (2.2m) 8s |
Table - best surf conditions forecast for Shida over the next 16 days.
The Lowdown
Alright, Rusty here. Let's get into it.
Alright, so we've got a 16-day window here, and honestly, for Shida, it's a slow start. The first week is a write-off for decent surf. You're looking at days of poor conditions, mainly cross-onshore winds and choppy messy waves. It's a bit of a bummer. The combined energy in the early part is weak to moderate, like around 174-315, not really packing a punch. There's a brief window of clean, offshore winds on Wednesday, September 2nd, but the swell is tiny, around 2 ft to 3 ft from the ESE with a period of 10 seconds, so it's just not enough to get excited about. The water temp is about average for this time of year.
The real action, the standout, starts to build from the second week. The best of the best is looking like Monday, September 14th in the afternoon. The forecast is for a solid 8 ft swell from the SE, with a period of 9 seconds, and light cross-offshore winds. That's a recipe for clean, powerful surf. The combined energy jumps to a strong 1383, and the notes say excellent conditions for experienced surfers. That's the one to circle. The morning of the 14th is also good with 6 ft swell and clean conditions, but the afternoon is the peak.
Before that, Sunday, September 13th is a solid warm-up. Both the morning and afternoon have a nice 5 ft to 5 ft swell from the SSE, with a 9-second period, and gentle offshore winds. The energy is moderate at 659-675, and the forecast says "very good surf conditions." It should be a clean, fun day.
Keep in mind that Saturday, September 12th the swell gets big. The morning is forecast at 10 ft from the SSE. That's a lot of power, with the combined energy hitting 1875, but it's flagged as too big for the break. That's expert-only territory, and even then, it might be pushing it. The afternoon drops to 8 ft with fresh offshore winds, which is more manageable but still a heavy day.
The rest of the second week, the 10th and 11th, have some swell but the winds are strong, up to 28 mph. It's clean, but hard to paddle into. The 15th has a massive 16 ft swell from the SSE, but it's way too big for this spot and with onshore winds, it's a total mess.
So, bottom line: sit tight through the first week. The good stuff arrives on the 13th, peaks on the 14th, and then it's done. Don't sleep on that Monday.
Rusty.
Short Range ForecastMostly dry. Warm (max 28°C on Wed morning, min 23°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 29mm), heaviest during Sat morning. Warm (max 29°C on Thu morning, min 20°C on Sat morning). Mainly fresh winds. | ||||||||||||||||||
Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | ||||||||||||||
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 11 | SE 14 | ESE 14 | ESE 12 | ESE 12 | ESE 11 | ESE 11 | ESE 10 | ESE 10 | SSE 6 | SSE 6 | SE 6 | S 7 | SSE 7 | NE 6 | ENE 7 | ENE 8 | E 8 | E 8 |
Wave Graph | |||||||||||||||||||
56 | 56 | 73 | 175 | 237 | 214 | 170 | 116 | 86 | 140 | 110 | 94 | 247 | 99 | 176 | 336 | 604 | 593 | 418 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross-on | cross-on | cross-on | cross-on | glassy | off | off | off | cross-off | off | cross-off | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 5:44AM1.43m | 5:57PM1.49m | 6:29AM1.36m | 6:18PM1.49m | 7:19AM1.27m | 6:41PM1.49m | 8:22AM1.16m | 7:06PM1.46m | 10:01AM1.07m | 7:36PM1.42m | 8:18PM1.36m | ||||||||
Low Tide | 11:43PM0.45m | 11:48AM0.44m | 00:18AM0.37m | 12:15PM0.58m | 00:57AM0.32m | 12:40PM0.73m | 1:43AM0.31m | 1:03PM0.88m | 2:39AM0.32m | 1:15PM1.01m | 3:57AM0.35m | ||||||||
— | 5:09 | — | — | 5:09 | — | — | 5:09 | — | — | 5:11 | — | — | 5:11 | — | — | 5:11 | — | — | |
6:08 | — | 6:07 | — | — | 6:06 | — | — | 6:05 | — | — | 6:04 | — | — | 6:01 | — | — | 6:00 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | 5 | — | 1 | 4 | 11 | 8 | 1 |
Temp °C | 23 | 25 | 26 | 24 | 27 | 27 | 25 | 28 | 28 | 27 | 29 | 29 | 27 | 23 | 24 | 23 | 21 | 21 | 23 |
Feels °C | 25 | 26 | 26 | 24 | 28 | 29 | 29 | 31 | 29 | 30 | 30 | 30 | 29 | 21 | 22 | 22 | 18 | 20 | 22 |
Swell 1 Height (m) Direction Period (s) | E 11 | E 11 | ESE 14 | ESE 12 | ESE 12 | ESE 11 | ESE 11 | ESE 10 | ESE 6 | ESE 11 | SSE 6 | E 10 | SSE 7 | SSE 7 | SSE 7 | SE 9 | SSW 9 | S 9 | SE 11 |
56 | 56 | 73 | 175 | 237 | 214 | 170 | 116 | 56 | 123 | 110 | 71 | 197 | 99 | 59 | 38 | 15 | 6 | 32 | |
Swell 2 Height (m) Direction Period (s) | ENE 4 | SE 9 | E 11 | E 11 | SSW 8 | NE 6 | ENE 7 | E 7 | ESE 10 | SE 10 | E 10 | SSW 8 | E 10 | ESE 9 | E 9 | SSW 8 | ENE 13 | E 13 | SSW 10 |
8 | 23 | 56 | 36 | 14 | 37 | 37 | 56 | 86 | 15 | 73 | 22 | 48 | 29 | 27 | 22 | 17 | 13 | 10 | |
Swell 3 Height (m) Direction Period (s) | SSW 7 | SE 14 | SE 9 | SSW 9 | ESE 15 | SSW 9 | SSW 8 | SSW 8 | SSW 8 | NE 8 | SSW 8 | SE 10 | E 15 | SSW 9 | SSW 8 | ENE 13 | — | SW 12 | ENE 12 |
10 | 51 | 22 | 16 | 21 | 15 | 14 | 22 | 22 | 3 | 21 | 15 | 4 | 16 | 14 | 18 | — | 5 | 14 | |
Wind waves Height (m) Direction Period (s) | NNE 4 | NE 7 | NE 6 | NE 6 | NE 6 | — | — | — | — | SSE 6 | SSW 5 | SE 6 | S 7 | NE 5 | NE 6 | ENE 7 | ENE 8 | E 8 | E 8 |
9 | 44 | 54 | 60 | 43 | — | — | — | — | 140 | 42 | 94 | 247 | 86 | 176 | 336 | 604 | 593 | 418 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 3 | 256 | 70 | 35 | 27 | 63 | 0 | 0 | 0 | 0 | 91 | 0 | 0 | 63 | 1502 | 561 | 561 | 544 | 561 |
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.











