Surf Forecasts:
Tainohama surf forecast from 29 Aug 2026:
- Best quality surf: Sunday 30 Aug, 6AM (local time) - 4ft (1.2m), 7s period, SW swell with glassy winds.
- Most powerful swell: Sunday 6 Sep, 3AM (local time) - 10ft (3.0m), 9s period, ESE swell with 1,346 kJ wave energy.
- Next surfable swell (1★+): Sunday 30 Aug, 3AM (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 Sunday (Aug 30) at 3AM. The primary swell is predicted to be 0.9m and 7s period with a secondary swell of 0.4m and 11s. Another secondary swell of 1.0m and 5s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Tainohama in the next 16 days are 3.0m 9s and forecast to arrive on Sunday (Sep 06) 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 4s period and expected on Friday (Sep 04) at 9AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Sun 30th Aug) | 3ft (0.9m) 7s |
| Best Surf | 6AM (Sun 30th Aug) | 4ft (1.2m) 7s |
| Most Powerful | 3AM (Sun 6th Sep) | 10ft (3.0m) 9s |
Table - best surf conditions forecast for Tainohama over the next 16 days.
The Lowdown
Alright, let’s break down what’s going on at Tainohama. Most of the 16 days are pretty bleak, but there’s a couple of windows that’ll make you want to wax up. The first real shot is Sunday, 30 August, but it’s a short one.
The early week—Monday, 31 August, through Thursday, 3 September—is flat and ugly. The swell is tiny, mostly under 3 ft, and the wind is onshore or cross-onshore, just ruining any chance of a clean wave. The energy is weak, with combined energy values in the low hundreds (106 to 268). Not worth paddling out.
Friday, 4 September, stays poor, but Saturday, 5 September, shows a little life. The morning sees a building swell of 6 ft from the ESE, with a clean cross-offshore breeze from the north at 12 mph. The combined energy jumps to 543 (moderate), and the break is fairly consistent. However, the swell period is only 8 seconds—short period, local wind swell, so it’ll be a bit weak. It’s surfable, but nothing to write home about.
Sunday, 6 September, through Monday, 7 September, gets messy again. The swell hits 10 ft from the ESE, but the wind is strong cross-onshore, making it choppy and dangerous. The energy is high (1633–1942), but the conditions are poor for paddle surfing. If you’re into kite surfing, this might be fun, but for a surfer, it’s a no-go.
Now, the real standout is the morning of Wednesday, 9 September. The forecast shows 5 ft of ESE swell with a 10-second period, combined energy of 537 (moderate), and—get this—completely glassy conditions. The wind is calm, the water will be smooth as glass. This is the best window of the whole outlook. The swell direction (ESE) is close to the optimum for Tainohama (S), so it’ll wrap into the reef nicely. It’s a reef break, so the long period (10 seconds) will give it shape and power. This is the one to mark on your calendar.
Thursday, 10 September, and Friday, 11 September, see a new swell from the south, but the wind cranks up to 19–31 mph offshore. That’s clean, but the conditions are marginal—strong offshore winds make paddling into the waves a real struggle. The energy is high (932–1820), but the wind is just too strong for a fun session.
The biggest swell of the period arrives Saturday, 12 September, through Monday, 14 September. This is a massive southerly groundswell with a 16-second period, hitting 10 ft to 12 ft. The combined energy is off the charts—over 6,500 (very strong). The morning of Saturday, 12 September, shows exceptional conditions for expert surfers, with a gentle cross-offshore wind. This is for experienced surfers only—over 10 ft and a long period, which means the reef and point will handle it best. The beach break might be too straight and hard to manage. This is a solid, powerful swell, but only for the brave.
In summary, the best windows are Wednesday, 9 September, for clean, glassy fun on a moderate swell, and Saturday, 12 September, for the big, daunting groundswell. The rest of the forecast is mostly a washout. Tainohama is a fairly consistent reef break, but it’s not immune to long flat spells. This is one of those stretches where you’ve got to pick your moments.
Rusty.
Short Range ForecastLight rain (total 6mm), mostly falling on Sun afternoon. Warm (max 30°C on Sun morning, min 25°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 6mm), mostly falling on Thu night. Warm (max 30°C on Wed afternoon, min 24°C on Thu night). Winds increasing (calm on Wed night, fresh winds from the N by Fri morning). | ||||||||||||||||||
Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | ||||||||||||||
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 7 | SW 8 | SSW 7 | SSW 7 | S 9 | S 8 | SE 10 | ESE 13 | E 12 | S 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 7 | SSW 11 | SE 8 | ESE 8 | SE 7 |
Wave Graph | |||||||||||||||||||
97 | 129 | 55 | 76 | 73 | 51 | 31 | 59 | 80 | 118 | 137 | 192 | 175 | 88 | 64 | 81 | 100 | 90 | 109 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | glassy | cross-on | cross-off | on | cross-on | cross-on | on | on | cross-on | on | on | cross-on | glassy | cross-on | cross-off | off | cross-off | off |
High Tide | 7:00AM2.02m | 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 | |||||||
Low Tide | 00:54AM0.53m | 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 | |||||||
— | 5:33 | — | — | 5:33 | — | — | 5:33 | — | — | 5:35 | — | — | 5:35 | — | — | 5:35 | — | — | |
6:31 | — | 6:30 | — | — | 6:29 | — | — | 6:28 | — | — | 6:27 | — | — | 6:25 | — | — | 6:23 | — | |
mm | — | — | 3 | 2 | 1 | — | — | — | — | — | — | — | 1 | — | 1 | 4 | — | — | — |
Temp °C | 28 | 30 | 30 | 28 | 30 | 29 | 27 | 29 | 29 | 26 | 29 | 30 | 27 | 29 | 28 | 27 | 26 | 25 | 24 |
Feels °C | 33 | 34 | 34 | 33 | 33 | 31 | 31 | 31 | 30 | 30 | 32 | 32 | 32 | 32 | 32 | 32 | 24 | 23 | 23 |
Swell 1 Height (m) Direction Period (s) | SSW 7 | S 7 | SE 10 | S 7 | S 9 | S 8 | S 8 | S 8 | S 8 | S 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 7 | ESE 8 | SE 8 | ESE 8 | SE 7 |
97 | 70 | 37 | 38 | 73 | 51 | 31 | 33 | 57 | 118 | 137 | 192 | 175 | 88 | 64 | 73 | 100 | 90 | 109 | |
Swell 2 Height (m) Direction Period (s) | SE 11 | SE 10 | SW 11 | SE 10 | SE 10 | SE 10 | SSW 9 | ESE 13 | E 12 | E 12 | E 11 | E 11 | E 10 | E 10 | ESE 9 | SSW 11 | SSW 11 | SSW 10 | S 9 |
19 | 17 | 4 | 38 | 25 | 25 | 31 | 59 | 80 | 70 | 61 | 58 | 56 | 51 | 44 | 81 | 76 | 41 | 24 | |
Swell 3 Height (m) Direction Period (s) | ESE 9 | ESE 10 | E 11 | SW 9 | E 10 | SSW 10 | SE 10 | SE 9 | SE 9 | SE 9 | SE 10 | SE 11 | SE 10 | SW 11 | SSW 10 | S 7 | SSE 7 | SSE 8 | SW 10 |
8 | 9 | 2 | 3 | 2 | 10 | 23 | 22 | 22 | 14 | 14 | 18 | 17 | 29 | 40 | 26 | 18 | 19 | 26 | |
Wind waves Height (m) Direction Period (s) | SW 5 | SW 8 | SSW 7 | SSW 7 | SW 4 | SSW 2 | — | SSE 3 | — | ENE 6 | E 6 | — | — | — | — | — | NNE 4 | NE 4 | NE 4 |
74 | 129 | 55 | 76 | 6 | 1 | — | 1 | — | 12 | 2 | — | — | — | — | — | 28 | 34 | 9 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 3 | 0 | 3 | 51 | 3 | 3 | 32 | 3 | 3 | 3 | 3 | 0 | 64 | 0 | 36 | 64 | 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.











