
Surf Forecasts:
Tainohama surf forecast from 7 Aug 2026:
- Best quality surf: Sunday 9 Aug, 3AM (local time) - 4.5ft (1.3m), 11s period, SSW swell with glassy winds.
- Most powerful swell: Friday 7 Aug, 6PM (local time) - 11ft (3.5m), 12s period, SSE swell with 3,707 kJ wave energy.
- Next surfable swell (1★+): Sunday 9 Aug, 3AM (local time) - 4.5ft (1.3m), 11s period with SSW swell.
Best Forecast Surf Conditions for Tainohama this week:
The surf forecast for Tainohama over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Aug 09) at 3AM. The primary swell is predicted to be 1.3m and 11s period with a secondary swell of 1.1m and 8s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Tainohama in the next 16 days are 3.5m 12s and forecast to arrive on Friday (Aug 07) at 6PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 4s period and expected on Tuesday (Aug 11) at 12PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Sun 9th Aug) | 4.5ft (1.3m) 11s |
| Best Surf | 3AM (Sun 9th Aug) | 4.5ft (1.3m) 11s |
| Most Powerful | 6PM (Fri 7th Aug) | 11ft (3.5m) 12s |
Table - best surf conditions forecast for Tainohama over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's have a look at what's on the menu for Tainohama over the next couple of weeks. It's a bit of a mixed bag, but there's a narrow window of something special if you're patient and picky.
The first few days are a bit of a write-off, to be honest. We’ve got a lot of energy in the water early on—Friday the 7th sees a solid 13.1ft swell from the southeast, with a combined energy of 9885, but it's arriving with a nasty cross-onshore wind and a risk of thunderstorms. That's a messy, choppy affair, not the kind of session you write home about. That swell drops quick, but the wind stays onshore for the rest of the weekend, keeping things pretty average.
The standout, and I mean the real standout, is Monday morning the 10th of August. The swell drops right down to 3.6ft from the south, but the wind goes glassy – dead flat. You’ll have clean, peelable little waves with a period of 10 seconds. The combined energy is a modest 574, so it’s not a powerhouse, but for a reef break like Tainohama, that light, clean condition is pure gold. The water’s sitting at 84°, which is a touch warmer than normal for this time of year, so you won’t need a thick suit. Monday afternoon stays glassy, too, with 3.3ft waves. If you can get out there, that’s the pick of the entire forecast.
After that, the energy drops off a cliff. From Tuesday the 11th onwards, we’re looking at chest-to-waist high stuff at best, and the wind is all over the place. There are moments of clean, cross-off wind on Tuesday the 11th and Wednesday the 19th, with 3.0ft to 3.6ft waves, but the consistency is pretty low. The swell direction is mostly from the south or southeast, and the period is short-to-average, so it’s not going to have much punch.
There’s a long gap of very small, poor conditions from the 12th through to the 18th, with waves mostly under 3.3ft and onshore winds. You’ll see a few glassy mornings on the 15th, 17th, and 18th, but the swell is barely there—2.0ft to 3.3ft—and the energy is weak. The 19th of August shows a bit of promise with a pulse of 3.3ft, 10-second swell from the ESE and clean cross-off wind, giving a combined energy of 226. It’s not a classic, but it’s the best you’ll see in the second week. By the 21st and 22nd, it’s practically flat, with 1.3ft to 2.0ft dribble.
So, my advice? Don’t waste your time on the big, stormy junk early on. Aim for Monday the 10th of August for the cleanest, most surfable conditions. After that, it’s a waiting game for a small pulse on the 19th. It’s a reef break, so it handles the long-period swell well, but there’s nothing long-period in the cards here. Mostly short-period, weak stuff.
Stay salty.
Short Range ForecastHeavy rain (total 24mm), heaviest during Fri morning. Warm (max 29°C on Sat morning, min 25°C on Sat night). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 20mm), heaviest during Wed night. Warm (max 30°C on Tue morning, min 23°C on Tue night). Wind will be generally light. | ||||||||||||||||||||
Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | |||||||||||||||
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) | SSE 12 | SSE 12 | S 12 | S 11 | S 11 | SSW 11 | ESE 13 | E 13 | ESE 13 | S 10 | S 10 | S 11 | SSW 11 | S 11 | SW 12 | S 10 | S 10 | SSW 10 | SSW 10 | SSW 9 | SSW 9 |
Wave Graph | |||||||||||||||||||||
5198 | 3806 | 1321 | 792 | 629 | 366 | 367 | 339 | 286 | 244 | 218 | 184 | 314 | 184 | 138 | 127 | 127 | 170 | 128 | 118 | 86 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | cross-on | cross-on | on | cross-on | on | cross-on | glassy | glassy | glassy | off | cross-off | cross-off | off | glassy | on | glassy | on | on | glassy |
High Tide | 2:17PM1.41m | 11:57PM1.59m | 3:58PM1.53m | 1:36AM1.59m | 4:44PM1.65m | 2:58AM1.66m | 5:17PM1.75m | 3:58AM1.76m | 5:46PM1.83m | 4:47AM1.87m | 6:13PM1.88m | 5:29AM1.95m | 6:38PM1.92m | ||||||||
Low Tide | 6:10PM1.32m | 8:05AM0.61m | 8:34PM1.34m | 9:18AM0.49m | 9:53PM1.26m | 10:11AM0.37m | 10:39PM1.15m | 10:54AM0.28m | 11:15PM1.03m | 11:32AM0.23m | 11:48PM0.90m | 12:07PM0.22m | 00:20AM0.79m | ||||||||
5:16 | — | — | 5:16 | — | — | 5:18 | — | — | 5:18 | — | — | 5:20 | — | — | 5:20 | — | — | 5:20 | — | — | |
— | 6:57 | — | — | 6:55 | — | — | 6:54 | — | — | 6:53 | — | — | 6:52 | — | — | 6:52 | — | — | 6:51 | — | |
mm | 7 | 6 | 8 | 2 | — | — | — | — | 1 | 2 | 4 | — | — | — | — | 3 | 1 | 10 | 6 | 2 | 1 |
Temp °C | 28 | 28 | 27 | 29 | 29 | 26 | 29 | 28 | 26 | 28 | 28 | 27 | 30 | 30 | 25 | 26 | 25 | 25 | 26 | 28 | 25 |
Feels °C | 30 | 31 | 30 | 31 | 31 | 30 | 32 | 30 | 30 | 32 | 33 | 31 | 30 | 31 | 26 | 29 | 26 | 29 | 28 | 30 | 28 |
Swell 1 Height (m) Direction Period (s) | SSE 12 | SSE 12 | SE 10 | SE 9 | S 11 | SSW 11 | ESE 13 | E 13 | S 11 | S 10 | S 10 | S 11 | SSW 11 | S 11 | S 10 | S 10 | S 10 | SSW 10 | SSW 10 | SSW 9 | SSW 9 |
4687 | 3806 | 979 | 550 | 629 | 366 | 367 | 339 | 231 | 244 | 218 | 184 | 314 | 184 | 138 | 127 | 127 | 170 | 128 | 118 | 86 | |
Swell 2 Height (m) Direction Period (s) | — | E 15 | S 12 | S 11 | SE 8 | SE 8 | SE 8 | SSW 12 | ESE 13 | E 12 | E 12 | SW 12 | E 11 | SW 12 | SW 12 | SSW 11 | SSW 11 | E 10 | ESE 4 | ESE 6 | E 12 |
— | 4 | 1321 | 792 | 330 | 196 | 119 | 239 | 286 | 190 | 141 | 112 | 62 | 147 | 135 | 109 | 82 | 7 | 6 | 6 | 71 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | SSW 14 | ESE 10 | ESE 10 | SSW 12 | SE 8 | SSW 11 | SW 12 | SW 12 | E 12 | SE 13 | E 11 | E 10 | E 10 | E 10 | SE 12 | E 10 | E 10 | ESE 4 |
— | — | — | 118 | 71 | 72 | 235 | 71 | 84 | 140 | 114 | 95 | 27 | 37 | 19 | 8 | 18 | 24 | 8 | 18 | 8 | |
Wind waves Height (m) Direction Period (s) | SE 12 | — | ESE 9 | — | — | — | — | — | — | — | — | N 3 | NE 4 | NNE 4 | — | NNE 3 | — | SE 3 | E 4 | E 5 | — |
5198 | — | 660 | — | — | — | — | — | — | — | — | 5 | 10 | 13 | — | 4 | — | 3 | 14 | 28 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 454 | 438 | 348 | 64 | 3 | 3 | 3 | 3 | 0 | 0 | 0 | 0 | 18 | 0 | 0 | 0 | 64 | 0 | 64 | 3 | 0 |
Best forecast wave conditions in Shikoku | |||||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||||
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Information about the Tainohama Surf forecast
The above surf forecast table for Tainohama provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Tainohama can be found by selecting the local surf guide option on the grey menu. Our Tainohama 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 (Tainohama) 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 Tainohama 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.
Tainohama is 21 km (13 miles) from Anan. If you plan a holiday in Shikoku, look for hotels and other accommodation in Anan. Anan has rooms for a wide range of budgets as well as car hire and transport links.











