Surf Forecasts:
Tainohama surf forecast from 30 Aug 2026:
- Best quality surf: Sunday 6 Sep, 3AM (local time) - 4.5ft (1.4m), 15s period, SSE swell with glassy winds.
- Most powerful swell: Sunday 6 Sep, 12PM (local time) - 6ft (1.9m), 15s period, SSE swell with 1,537 kJ wave energy.
- Next surfable swell (1★+): Monday 31 Aug, 12AM (local time) - 3ft (0.9m), 7s 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 Monday (Aug 31) at 12AM. The primary swell is predicted to be 0.9m and 7s period with a secondary swell of 0.7m and 7s. Another secondary swell of 0.4m and 10s is also forecast. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Tainohama in the next 16 days are 1.9m 15s and forecast to arrive on Sunday (Sep 06) at 12PM. Winds are predicted to be onshore at the time the swell arrives.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Mon 31st Aug) | 3ft (0.9m) 7s |
| Best Surf | 3AM (Sun 6th Sep) | 4.5ft (1.4m) 15s |
| Most Powerful | 12PM (Sun 6th Sep) | 6ft (1.9m) 15s |
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 Tainohama’s got cookin’ for us over the next couple of weeks. This is a reef setup that needs a southerly swell to light up, and we’ve got some pulses coming through. The water is sitting pretty warm, a touch warmer than normal for this time of year at around 84°F.
The first real chance to get wet kicks off Sunday morning, the 30th of August. We’re looking at a clean 4ft swell from the SW wrapping in with a period of 7 seconds. The wind is dead calm – glassy as it gets – and the combined energy is a solid moderate 225. For a Sunday funday, that’s a nice little window. Don’t get used to it though, because by the afternoon a southerly breeze swings around to mess things up, and we’re into a long stretch of poor conditions with onshore winds and tiny, weak surf.
Honestly, after that Sunday morning glass-off, the next week is pretty bleak. The wind stays on the nose or cross-onshore most days, and the wave heights bob around from 1ft to 4ft with weak energy readings (85 to 283). Not worth paddling out for. Even when there’s a bit more size, like on the 5th of September, the energy jumps to a moderate 359 with a 5ft SSW swell and glassy morning winds... but the afternoon gets weird with a 2ft, 17-second groundswell that would be super straight and tough to ride here.
Now, hold onto your board, because we’ve got a proper stand-out on the horizon. The period around the 8th and 9th of September is the real deal for experienced surfers. On Tuesday the 8th, the swell hits 12ft from the SSE with a period of 12 seconds and massive, strong energy at 6429. That’s way too much for beginners – experts only. The wind is a light cross-shore, keeping it half-decent. Then on Wednesday the 9th, we get clean conditions with a lighter NE cross-offshore breeze in the morning, and 8ft of SSE swell (1730 energy). The afternoon turns glassy with 8ft from the SE. These days are the clear highlight – pushy, powerful surf but with some tidy windows.
We get one more good-looking morning on Thursday the 10th with clean cross-off winds and a solid 8ft SSE swell (1779 energy) before the wind cranks onshore again Friday and Saturday, turning the ocean into a lumpy mess. That strong energy from the 8th and 9th is the only time you should be pointing your board at this break, and even then, you better know what you’re doing on a reef.
Keep an eye on the 14th of September for a return of cleaner conditions and 5ft of SE swell, but by then the size drops off. So to wrap it up: this run is mostly a bust, with a couple of expert-level gems around the 8th, 9th, and 10th of September.
Rusty.
Short Range ForecastLight rain (total 5mm), mostly falling on Sun morning. Warm (max 30°C on Sun morning, min 25°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 2mm), mostly falling on Wed morning. Warm (max 30°C on Fri morning, min 25°C on Thu night). Wind will be generally light. | ||||||||||||||||||||
Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | |||||||||||||||
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) | SW 7 | SSW 7 | SSW 7 | S 9 | S 8 | SE 10 | ESE 13 | S 7 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | S 8 | ESE 9 | S 10 | SSW 9 | SSW 9 | SSW 9 | SSW 8 | SSE 17 | SSE 15 |
Wave Graph | |||||||||||||||||||||
126 | 71 | 76 | 54 | 51 | 31 | 59 | 54 | 120 | 155 | 176 | 176 | 124 | 97 | 255 | 216 | 193 | 222 | 256 | 193 | 637 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-on | glassy | on | cross-on | cross-on | on | on | cross-on | on | on | cross-on | on | on | cross-on | cross-on | cross-on | cross | glassy | on | cross-on |
High Tide | 7:18PM1.94m | 7:38AM1.95m | 7:42PM1.92m | 8:17AM1.84m | 8:07PM1.88m | 9:01AM1.70m | 8:33PM1.82m | 9:56AM1.55m | 9:03PM1.74m | 11:25AM1.42m | 9:41PM1.64m | 2:23PM1.42m | 10:58PM1.53m | ||||||||
Low Tide | 1:12PM0.47m | 1:26AM0.48m | 1:41PM0.60m | 2:00AM0.46m | 2:09PM0.76m | 2:38AM0.48m | 2:37PM0.93m | 3:22AM0.54m | 3:06PM1.09m | 4:19AM0.62m | 3:42PM1.25m | 5:46AM0.69m | 5:33PM1.39m | ||||||||
5:33 | — | — | 5:33 | — | — | 5:33 | — | — | 5:35 | — | — | 5:35 | — | — | 5:35 | — | — | 5:37 | — | — | |
— | 6:30 | — | — | 6:29 | — | — | 6:28 | — | — | 6:27 | — | — | 6:25 | — | — | 6:23 | — | — | 6:22 | — | |
mm | 1 | 2 | 1 | — | — | — | — | — | 1 | 1 | — | — | — | — | 1 | — | — | — | — | — | — |
Temp °C | 30 | 30 | 28 | 30 | 29 | 26 | 29 | 29 | 27 | 28 | 29 | 26 | 29 | 29 | 27 | 30 | 30 | 26 | 30 | 30 | 27 |
Feels °C | 34 | 34 | 32 | 32 | 31 | 29 | 30 | 30 | 31 | 30 | 31 | 30 | 31 | 31 | 32 | 32 | 31 | 29 | 33 | 33 | 31 |
Swell 1 Height (m) Direction Period (s) | SSW 7 | SE 10 | S 7 | S 9 | S 8 | S 8 | S 8 | S 7 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | S 8 | SSE 7 | S 10 | SSW 9 | ESE 8 | SE 9 | ESE 9 | ESE 8 | SSE 15 |
73 | 37 | 51 | 54 | 51 | 31 | 32 | 54 | 120 | 155 | 176 | 176 | 124 | 97 | 255 | 216 | 90 | 77 | 67 | 62 | 637 | |
Swell 2 Height (m) Direction Period (s) | SE 10 | SW 11 | SE 10 | SE 10 | SE 10 | SSW 9 | ESE 13 | ESE 12 | E 12 | E 11 | E 11 | E 11 | E 10 | E 9 | ESE 9 | ESE 9 | ESE 8 | — | SSE 17 | SSE 17 | SSW 10 |
17 | 4 | 38 | 25 | 25 | 31 | 59 | 52 | 70 | 61 | 58 | 57 | 50 | 41 | 59 | 96 | 108 | — | 29 | 193 | 186 | |
Swell 3 Height (m) Direction Period (s) | ESE 10 | E 11 | SW 9 | E 10 | SSW 10 | SE 10 | SE 9 | SE 9 | SE 10 | SE 10 | SE 11 | SE 10 | SW 11 | SW 11 | SE 10 | SE 9 | E 10 | E 15 | SE 13 | SW 11 | ESE 8 |
9 | 2 | 3 | 2 | 10 | 23 | 23 | 22 | 14 | 14 | 18 | 17 | 32 | 55 | 15 | 30 | 18 | 4 | 7 | 56 | 48 | |
Wind waves Height (m) Direction Period (s) | SW 7 | SSW 7 | SSW 7 | SW 4 | SSW 3 | — | — | — | — | — | — | — | — | ESE 9 | — | — | SSW 9 | SSW 9 | SSW 8 | SSW 8 | — |
126 | 71 | 76 | 4 | 1 | — | — | — | — | — | — | — | — | 90 | — | — | 193 | 222 | 256 | 168 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 3 | 0 | 3 | 51 | 3 | 3 | 32 | 3 | 64 | 454 | 3 | 25 | 32 | 3 | 3 | 32 | 3 | 0 | 3 | 3 |
Best forecast wave conditions in Shikoku | |||||||||||||||||||||
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 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.











