Surf Forecasts:
Tainohama surf forecast from 12 Sep 2026:
- Best quality surf: Saturday 19 Sep, 3PM (local time) - 16ft (5.0m), 14s period, ESE swell with cross-shore winds.
- Most powerful swell: Saturday 19 Sep, 3PM (local time) - 16ft (5.0m), 14s period, ESE swell with 9,669 kJ wave energy.
- Next surfable swell (1★+): Saturday 12 Sep, 3PM (local time) - 2ft (0.6m), 7s period with S 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 Saturday (Sep 12) at 3PM. The primary swell is predicted to be 0.6m and 7s period with a secondary swell of 0.4m and 10s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Tainohama in the next 16 days are 5.0m 14s and forecast to arrive on Saturday (Sep 19) at 3PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.2m 2s period and expected on Thursday (Sep 17) at 12PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3PM (Sat 12th Sep) | 2ft (0.6m) 7s |
| Best Surf | 3PM (Sat 19th Sep) | 16ft (5.0m) 14s |
| Most Powerful | 3PM (Sat 19th Sep) | 16ft (5.0m) 14s |
Table - best surf conditions forecast for Tainohama over the next 16 days.
The Lowdown
Alright surfers, Rusty here. Let’s break down what’s happening at Tainohama for the next couple of weeks. This is a reef break that needs a south swell, and it’s going to be a game of patience.
The first few days are weak. Saturday the 12th has a tiny 2ft south swell with a short 7-second period, energy is only 102, and the water is about 82°F, pretty normal for the season. Saturday morning is surfable but nothing special. The afternoon goes glassy but even smaller at 2ft. Not worth suiting up for.
Sunday and Monday are blown out with onshore winds and poor conditions. Monday morning sees a bump to 3ft from the southeast, energy rising to 151 (moderate), but the wind is straight onshore and the quality is poor. Tuesday the 15th morning is the first real highlight: 4ft of SE swell at 9 seconds, glassy winds, and energy at 216 (moderate). Clean conditions and a decent push for Tainohama. Tuesday afternoon goes onshore again.
Wednesday the 16th stays small but glassy. Thursday is clean but still small at 2ft.
Now, Friday the 18th is a standout. We get 7ft from the east at 8 seconds, glassy winds all day, and energy jumps to 770 (strong). That’s a solid, clean day with good power. The reef should love that east swell and no wind.
Then the big stuff hits. Saturday the 19th morning delivers 12ft of ESE groundswell with a very long 15-second period, and energy is a massive 4990 (very strong). That afternoon it goes even bigger to 16ft with 14 seconds, but the wind shifts cross and energy hits 16439 (very strong). This is expert-only territory. Sunday the 20th stays large at 12ft with 12 seconds and cross-off winds, energy 3760 (very strong). Another expert day.
Monday the 21st morning is glassy with 12ft from the south at 12 seconds and 4797 energy (very strong). A dream lineup for the brave. The afternoon gets messy with onshores.
Tuesday the 22nd drops to 8ft but onshore. After that, it fades fast. Thursday the 24th afternoon has a nice turn: 6ft from the east at 9 seconds, strong offshore NNW wind, energy 725 (strong). A clean, solid session.
The final days are small and clean but nothing to chase. The best bets: Friday the 18th for a clean 7ft day, and Saturday the 20th morning for big groundswell with favorable wind for experts. Tuesday the 15th morning is also a nice clean smaller option. Pick your moment.
Later, Rusty.
Short Range ForecastModerate rain (total 15mm), heaviest on Sat afternoon. Warm (max 28°C on Sun morning, min 24°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 26mm), heaviest during Wed morning. Warm (max 27°C on Tue morning, min 23°C on Wed morning). Wind will be generally light. | ||||||||||||||||||||
Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | |||||||||||||||
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) | S 7 | S 7 | E 14 | ESE 9 | ESE 9 | SE 9 | SE 8 | SE 8 | SE 10 | SE 9 | SE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | SE 9 | SE 9 | ESE 6 | E 8 | E 8 | SE 16 |
Wave Graph  | |||||||||||||||||||||
 kJ | 47 | 33 | 35 | 32 | 54 | 145 | 135 | 138 | 181 | 198 | 186 | 138 | 101 | 99 | 99 | 77 | 75 | 197 | 513 | 579 | 625 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | glassy | on | on | on | on | on | cross-on | glassy | glassy | on | glassy | glassy | glassy | glassy | cross-off | cross-off | off | glassy | glassy | glassy |
High Tide | 6:21PM1.95m | 6:35AM2.04m | 6:45PM1.95m | 7:12AM1.99m | 7:08PM1.94m | 7:50AM1.90m | 7:32PM1.91m | 8:31AM1.77m | 7:58PM1.85m | 9:19AM1.62m | 8:25PM1.77m | 10:26AM1.48m | 8:57PM1.67m | ||||||||
Low Tide | 12:14PM0.41m | 00:24AM0.46m | 12:44PM0.50m | 00:55AM0.39m | 1:12PM0.61m | 1:28AM0.36m | 1:40PM0.75m | 2:04AM0.38m | 2:07PM0.90m | 2:43AM0.44m | 2:36PM1.06m | 3:31AM0.53m | 3:08PM1.21m | ||||||||
 |  |  |  | | | | | |  | |  |  | | | | |  | |  |  | |
 | 5:41 | — | — | 5:41 | — | — | 5:43 | — | — | 5:43 | — | — | 5:45 | — | — | 5:45 | — | — | 5:46 | — | — |
 | — | 6:13 | — | — | 6:12 | — | — | 6:10 | — | — | 6:08 | — | — | 6:07 | — | — | 6:06 | — | — | 6:05 | — |
mm | — | 2 | 4 | — | — | 2 | 1 | 2 | 4 | — | — | 2 | 5 | 3 | 9 | 2 | 4 | 1 | — | 1 | — |
Temp °C | 27 | 27 | 25 | 28 | 28 | 26 | 27 | 27 | 25 | 27 | 26 | 25 | 23 | 24 | 23 | 26 | 27 | 25 | 27 | 27 | 25 |
Feels °C | 30 | 32 | 30 | 30 | 30 | 30 | 31 | 29 | 29 | 29 | 29 | 28 | 27 | 29 | 27 | 29 | 31 | 29 | 30 | 31 | 27 |
Swell 1 Height (m) Direction Period (s) | S 7 | S 7 | S 7 | ESE 9 | ESE 9 | SE 9 | SE 8 | SE 8 | SE 10 | SE 9 | SE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | SE 9 | SE 9 | E 12 | ESE 8 | ESE 8 | SE 16 |
| kJ | 47 | 33 | 15 | 32 | 54 | 145 | 135 | 138 | 181 | 198 | 186 | 138 | 101 | 99 | 99 | 77 | 75 | 3 | 243 | 234 | 625 |
Swell 2 Height (m) Direction Period (s) | SE 10 | SE 10 | ESE 10 | S 7 | E 13 | E 13 | E 13 | E 12 | E 12 | S 7 | E 13 | E 13 | E 12 | S 7 | E 13 | E 12 | E 12 | S 6 | SE 19 | SE 16 | S 9 |
| kJ | 24 | 25 | 35 | 22 | 31 | 29 | 13 | 12 | 12 | 1 | 14 | 12 | 3 | 1 | 3 | 3 | 3 | 1 | 14 | 43 | 2 |
Swell 3 Height (m) Direction Period (s) | E 13 | ESE 4 | E 14 | ESE 4 | S 7 | S 6 | S 7 | S 7 | S 7 | E 15 | S 6 | S 7 | E 14 | S 7 | S 7 | S 7 | S 7 | — | — | S 10 | — |
| kJ | 31 | 4 | 35 | 6 | 8 | 3 | 3 | 3 | 1 | 17 | 1 | 1 | 4 | 1 | 1 | 1 | 1 | — | — | 2 | — |
Wind waves Height (m) Direction Period (s) | NE 3 | — | ESE 5 | SE 4 | SE 4 | E 3 | — | — | — | — | — | — | — | — | — | — | ENE 2 | ESE 6 | E 8 | E 8 | ESE 9 |
| kJ | 2 | — | 12 | 7 | 3 | 1 | — | — | — | — | — | — | — | — | — | — | 1 | 197 | 513 | 579 | 360 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 21 | 27 | 32 | 3 | 3 | 32 | 0 | 0 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 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.
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