
Surf Forecasts:
Tainohama surf forecast from 13 Sep 2026:
- Best quality surf: Saturday 19 Sep, 9PM (local time) - 13ft (4.0m), 13s period, ESE swell with cross-offshore winds.
- Most powerful swell: Saturday 19 Sep, 3PM (local time) - 15ft (4.5m), 14s period, ESE swell with 6,825 kJ wave energy.
- Next surfable swell (1★+): Tuesday 15 Sep, 6AM (local time) - 4ft (1.2m), 9s period with SE 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 Tuesday (Sep 15) at 6AM. The primary swell is predicted to be 1.2m and 9s period with a secondary swell of 0.1m and 7s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Tainohama in the next 16 days are 4.5m 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 0.7m 4s period and expected on Sunday (Sep 20) at 3PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Tue 15th Sep) | 4ft (1.2m) 9s |
| Best Surf | 9PM (Sat 19th Sep) | 13ft (4.0m) 13s |
| Most Powerful | 3PM (Sat 19th Sep) | 15ft (4.5m) 14s |
Table - best surf conditions forecast for Tainohama over the next 16 days.
The Lowdown
Yo, Rusty here. Let’s talk about what’s coming up at Tainohama – a reef break that takes a south swell and needs a solid push to get going. Water temp’s sitting at 82°, which is pretty much average for this time of year, so nothing wild there. The next couple of days are a write-off – Sunday the 13th and Monday the 14th are small, onshore, just messy. You’re looking at a rough start with practically nothing worth paddling out for.
Come Tuesday the 15th morning, we finally get a glimpse of something – a glassy 4 ft SE swell, period 9 secs, and the combined energy is moderate at 290. It’s surfable but nothing to call home about. That glassy wind though, that’s a nice bonus. Tuesday afternoon gets a bit cross-onshore, so the cleanest window is definitely early. Wednesday and Thursday stay small with tiny 2-3 ft south-east swell, but the wind shifts light and glassy or clean offshore, so it’s rideable for the keeners on a log or a fish.
Now, the first real standout kicks off on Friday the 18th. Morning sees 6 ft ESE swell, 8 secs, but the combined energy jumps to 385 – moderate but punchy. Light cross-offshore wind keeps it clean. That afternoon holds at 5 ft. Not huge, but fun.
But the standout you’ve been waiting for is Saturday the 19th. Saturday morning hits with a solid 12 ft ESE swell, period 15 seconds – that’s groundswell, long-period, serious juice. Combined energy is 4985, strong. Light offshore wind. This is an advanced-only wave – over 8 ft, so for experienced surfers only. The afternoon jumps to 15 ft, but the wind goes cross and the conditions get trickier. Morning is the window. That south-east swell is bang-on the optimum direction for Tainohama. This is the best on offer – no question.
Sunday the 20th stays chunky with 8 ft ESE in the morning, clean offshore wind, combined energy 2072. Still excellent for experienced crew. Afternoon drops a bit but stays solid.
Monday the 21st keeps pumping – 10 ft south swell, long 12 sec period, glassy in the afternoon. That combination of size and clean conditions is rare. This is another day for the confident surfer.
Tuesday the 22nd morning gets big – 16 ft SSW, but note the optimum direction for this spot is south, so it’s a bit off, and the wind is onshore. Afternoon drops fast and stays poor. From Wednesday the 23rd onward, the wind cranks onshore and the swell plummets.
But hold up – there’s another run later. Thursday the 24th through Sunday the 28th brings a consistent run of 5-7 ft ESE swell, periods 9-12 secs, with fresh to moderate offshore winds from the north/northwest. The combined energy sits moderate to strong (560-1222). These are clean, surfable days, especially for those who like a bit of juice. The mornings on the 24th and 25th are your best bets – glassy offshore and clean. A nice little run for the end of the outlook.
Overall, the two true standouts are the morning of Saturday the 19th for the big, clean groundswell, and Saturday the 21st for the consistent, glassy south swell. For the rest, expect small to moderate surf with some clean windows, but nothing that’ll blow your mind.
Rusty.
Short Range ForecastModerate rain (total 19mm), heaviest on Tue afternoon. Warm (max 28°C on Sun morning, min 23°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 40mm), heaviest during Thu night. Warm (max 26°C on Wed morning, min 23°C on Wed night). Wind will be generally light. | ||||||||||||||||||||
Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | |||||||||||||||
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) | ESE 9 | SE 9 | SE 9 | SE 8 | SE 8 | SE 10 | SE 9 | SE 9 | SE 9 | ESE 9 | SE 9 | ESE 9 | SE 9 | SE 9 | ESE 6 | ESE 8 | ESE 8 | ESE 16 | ESE 15 | ESE 14 | ESE 12 |
Wave Graph | |||||||||||||||||||||
32 | 83 | 145 | 135 | 142 | 235 | 272 | 237 | 155 | 138 | 110 | 96 | 77 | 75 | 158 | 383 | 270 | 1799 | 4985 | 6825 | 3823 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | on | on | on | glassy | cross-on | glassy | cross-off | glassy | glassy | glassy | cross-off | glassy | cross-off | cross-off | cross-off | cross-off | cross | cross-off |
High Tide | 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 | 12:35PM1.40m | 9:48PM1.55m | ||||||||
Low Tide | 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 | 4:39AM0.64m | 4:09PM1.34m | ||||||||
5:41 | — | — | 5:43 | — | — | 5:43 | — | — | 5:45 | — | — | 5:45 | — | — | 5:46 | — | — | 5:47 | — | — | |
— | 6:12 | — | — | 6:10 | — | — | 6:08 | — | — | 6:07 | — | — | 6:06 | — | — | 6:05 | — | — | 6:04 | — | |
mm | 2 | — | 2 | 1 | — | 1 | 1 | 4 | 8 | 5 | 5 | 3 | 5 | 6 | 13 | 1 | 2 | — | — | 2 | 9 |
Temp °C | 28 | 28 | 26 | 28 | 28 | 24 | 27 | 26 | 24 | 26 | 26 | 24 | 26 | 26 | 24 | 26 | 26 | 25 | 27 | 27 | 23 |
Feels °C | 30 | 30 | 30 | 30 | 30 | 25 | 30 | 30 | 28 | 30 | 31 | 28 | 29 | 29 | 27 | 29 | 28 | 29 | 29 | 30 | 26 |
Swell 1 Height (m) Direction Period (s) | ESE 9 | SE 9 | SE 9 | SE 8 | SE 8 | SE 10 | SE 9 | SE 9 | SE 9 | ESE 9 | SE 9 | ESE 9 | SE 9 | SE 9 | E 12 | S 10 | ESE 8 | ESE 16 | ESE 15 | ESE 14 | ESE 12 |
32 | 83 | 145 | 135 | 142 | 235 | 272 | 237 | 155 | 138 | 110 | 96 | 77 | 75 | 3 | 2 | 270 | 1799 | 4985 | 5230 | 3680 | |
Swell 2 Height (m) Direction Period (s) | SE 4 | 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 20 | ESE 9 | — | — | — |
7 | 31 | 29 | 13 | 12 | 12 | 1 | 14 | 12 | 3 | 1 | 3 | 3 | 3 | 1 | — | 104 | 328 | — | — | — | |
Swell 3 Height (m) Direction Period (s) | S 7 | 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 6 | — | S 10 | S 10 | — | — | — |
8 | 8 | 3 | 3 | 1 | 1 | 17 | 1 | 1 | 4 | 1 | 1 | 1 | 1 | 1 | — | 2 | 7 | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | SE 3 | — | — | — | — | — | — | — | — | — | NNE 2 | NNE 3 | NE 3 | ESE 6 | ESE 8 | — | — | — | ESE 14 | ESE 12 |
— | 4 | — | — | — | — | — | — | — | — | — | 1 | 2 | 2 | 158 | 383 | — | — | — | 6825 | 3823 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 27 | 32 | 3 | 3 | 32 | 3 | 0 | 85 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 267 | 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.










