
Surf Forecasts:
Tainohama surf forecast from 15 Sep 2026:
- Best quality surf: Saturday 19 Sep, 9PM (local time) - 10ft (3.0m), 13s period, ESE swell with offshore winds.
- Most powerful swell: Sunday 20 Sep, 12AM (local time) - 10ft (3.0m), 13s period, ESE swell with 3,365 kJ wave energy.
- Next surfable swell (1★+): Wednesday 16 Sep, 6AM (local time) - 3ft (0.9m), 9s period with ESE 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 Wednesday (Sep 16) at 6AM. The primary swell is predicted to be 0.9m and 9s period with a secondary swell of 0.2m and 12s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Tainohama in the next 16 days are 3.0m 13s and forecast to arrive on Sunday (Sep 20) at 12AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 6s period and expected on Monday (Sep 21) at 6AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Wed 16th Sep) | 3ft (0.9m) 9s |
| Best Surf | 9PM (Sat 19th Sep) | 10ft (3.0m) 13s |
| Most Powerful | 12AM (Sun 20th Sep) | 10ft (3.0m) 13s |
Table - best surf conditions forecast for Tainohama over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's have a proper look at what’s coming down the line for Tainohama. It’s a bit of a slow burn over the next 16 days.
We’ve got a solid window of clean conditions and building swell, but the first few days are a write-off. From Wednesday the 16th through to Thursday the 17th, the wind is pushing cross-off and it’s just not offering anything worth paddling out for. You might as well stay home.
Things start to look up on Friday, September 18th. We’ve got a glassy morning with the wind dropping to nothing. The swell comes in at 5ft out of the ESE with a 9-second period, and the combined energy jumps to 353 (moderate). It’s not huge, but for Tainohama, that clean, glassy surface is a massive positive. This is the standout of the first week. The water temp is sitting at 82°, which is about normal for the time of year.
Saturday the 19th sees the swell jump to 7ft – 8ft from the ESE, with a long 13-second period pushing the energy right up (1615-2483). That’s strong energy. But the wind is cross-off from the N/NNE at 12 mph. It’s clean, but at that size and with that long period, it’s going to be powerful and only for experienced surfers. The long period also means it might be a bit straight for a beach break, but Tainohama being a reef might handle it better.
Sunday the 20th holds solid at 8ft to 10ft, with the wind finally turning offshore on the afternoon. That’s fresh offshore and clean, but the size is firmly in the “experts only” zone. Monday the 21st drops off quickly, and by Tuesday the 22nd we’re back to tiny, weak conditions for several days.
We then hit a long gap of nothing really surfable from the 23rd through to the 26th. Just tiny, short-period, messy stuff.
The real standout event is shaping up for the end of the forecast period. Sunday, September 28th brings back some size, but the magic window looks like Tuesday morning, September 29th. We’ve got a 7ft swell from the SSW with a very long 15-second period. The combined wave energy is a solid 2054 (strong). The wind is a slight air from the NE, making it cross-off but clean. This is excellent for experienced surfers.
Then, Wednesday, September 30th afternoon is another cracker. The wind goes offshore, the swell holds at 6ft from the SSW with a 14-second period, and the energy is 1421 (moderate). This is clean and powerful, definitely one to pencil in.
Finally, for the real big wave hunters, Thursday, October 1st delivers. A massive 15ft swell from the S in the morning, with 5282 energy (very strong!). The wind is light, but that is pure beast mode. Only for the experts, and even then, respect the ocean.
So, to wrap it up: Friday the 18th is your pick for the first half for clean, manageable waves. Tuesday the 29th and Wednesday the 30th September are the standout windows for solid, powerful, clean conditions. The 1st of October is for the big dogs only.
Stay safe, Rusty.
Short Range ForecastModerate rain (total 11mm), heaviest on Wed morning. Warm (max 26°C on Thu afternoon, min 20°C on Wed night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 28°C on Sat morning, min 19°C on Mon night). Mainly fresh winds. | ||||||||||||||||||||
Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | Tuesday 22 | |||||||||||||||
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) | SE 9 | ESE 9 | SE 9 | SE 9 | ESE 8 | ESE 8 | ESE 9 | ESE 10 | ESE 10 | ESE 13 | ESE 13 | ESE 13 | ESE 12 | ESE 12 | ESE 12 | ESE 12 | ESE 11 | ESE 10 | ESE 9 | ESE 9 | ESE 8 |
Wave Graph | |||||||||||||||||||||
112 | 96 | 112 | 79 | 80 | 202 | 351 | 478 | 346 | 1609 | 2477 | 3365 | 2403 | 2151 | 1839 | 671 | 158 | 38 | 28 | 26 | 13 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | off | cross-off | cross-off | glassy | glassy | glassy | off | cross-off | cross-off | off | cross-off | off | off | off | off | off | off | off | off |
High Tide | 7:58PM1.85m | 9:19AM1.62m | 8:25PM1.77m | 10:26AM1.48m | 8:57PM1.67m | 12:35PM1.40m | 9:48PM1.55m | 2:59PM1.49m | 00:08AM1.46m | 3:42PM1.60m | 2:17AM1.53m | 4:11PM1.69m | |||||||||
Low Tide | 2:07PM0.90m | 2:43AM0.44m | 2:36PM1.06m | 3:31AM0.53m | 3:08PM1.21m | 4:39AM0.64m | 4:09PM1.34m | 6:24AM0.69m | 7:49PM1.36m | 8:09AM0.65m | 9:15PM1.20m | 9:15AM0.56m | 9:54PM1.03m | ||||||||
5:45 | — | — | 5:45 | — | — | 5:46 | — | — | 5:47 | — | — | 5:47 | — | — | 5:48 | — | — | 5:48 | — | — | |
— | 6:07 | — | — | 6:06 | — | — | 6:05 | — | — | 6:04 | — | — | 6:01 | — | — | 6:00 | — | — | 5:59 | — | |
mm | 6 | 3 | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 24 | 23 | 22 | 25 | 26 | 23 | 26 | 26 | 24 | 28 | 28 | 25 | 27 | 28 | 24 | 27 | 27 | 22 | 26 | 27 | 21 |
Feels °C | 25 | 25 | 23 | 23 | 25 | 24 | 28 | 28 | 27 | 27 | 27 | 24 | 24 | 25 | 22 | 23 | 23 | 18 | 22 | 23 | 19 |
Swell 1 Height (m) Direction Period (s) | SE 9 | ESE 9 | SE 9 | SE 9 | ESE 8 | ESE 8 | ESE 9 | ESE 10 | ESE 10 | ESE 13 | ESE 13 | ESE 13 | ESE 12 | ESE 12 | ESE 12 | ESE 12 | ESE 11 | ESE 10 | ESE 9 | ESE 9 | ESE 8 |
112 | 96 | 112 | 79 | 80 | 202 | 351 | 478 | 346 | 1609 | 2477 | 3365 | 2403 | 2151 | 1839 | 671 | 158 | 38 | 28 | 26 | 13 | |
Swell 2 Height (m) Direction Period (s) | E 12 | S 7 | E 13 | E 12 | E 12 | E 12 | S 11 | S 10 | SE 16 | S 9 | S 9 | — | — | — | S 9 | S 9 | S 8 | E 10 | S 8 | S 8 | S 8 |
3 | 1 | 3 | 3 | 3 | 3 | 2 | 2 | 63 | 6 | 6 | — | — | — | 6 | 6 | 1 | 8 | 6 | 5 | 5 | |
Swell 3 Height (m) Direction Period (s) | E 14 | S 7 | S 7 | S 7 | — | E 12 | — | — | SE 11 | — | — | — | — | — | — | S 9 | S 10 | S 9 | S 10 | SE 10 | SSE 9 |
4 | 1 | 1 | 1 | — | 3 | — | — | 5 | — | — | — | — | — | — | 6 | 2 | 6 | 2 | 4 | 8 | |
Wind waves Height (m) Direction Period (s) | NNE 4 | NE 4 | NNE 4 | NE 4 | NE 4 | — | N 3 | — | — | N 4 | NE 4 | N 4 | NNE 4 | NNE 5 | N 6 | NNE 6 | NNE 6 | NNE 6 | NNE 6 | NNE 5 | NNE 5 |
8 | 3 | 13 | 26 | 14 | — | 1 | — | — | 27 | 18 | 50 | 32 | 44 | 23 | 8 | 21 | 59 | 20 | 15 | 15 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 18 | 0 | 0 | 64 | 64 | 0 | 0 | 0 | 0 | 18 | 64 | 0 | 64 | 64 | 21 | 21 | 21 | 27 | 21 | 36 | 36 |
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.










