Surf Forecasts:
Tainohama surf forecast from 7 Sep 2026:
- Best quality surf: Wednesday 9 Sep, 6AM (local time) - 8ft (2.5m), 9s period, SSE swell with glassy winds.
- Most powerful swell: Wednesday 9 Sep, 12PM (local time) - 8ft (2.5m), 9s period, S swell with 1,171 kJ wave energy.
- Next surfable swell (1★+): Tuesday 8 Sep, 3AM (local time) - 4.5ft (1.3m), 10s 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 Tuesday (Sep 08) at 3AM. The primary swell is predicted to be 1.3m and 10s period with a secondary swell of 1.3m and 8s. 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 2.5m 9s and forecast to arrive on Wednesday (Sep 09) at 12PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 5s period and expected on Wednesday (Sep 09) at 9PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Tue 8th Sep) | 4.5ft (1.3m) 10s |
| Best Surf | 6AM (Wed 9th Sep) | 8ft (2.5m) 9s |
| Most Powerful | 12PM (Wed 9th Sep) | 8ft (2.5m) 9s |
Table - best surf conditions forecast for Tainohama over the next 16 days.
The Lowdown
Alright, let’s talk about this Tainohama forecast in feet and miles. It’s a real mixed bag, with some proper thumps and long, flat stretches.
The first chance to get wet is this Tuesday, the 8th. The swell is around 4 to 5 feet from the south, with a 9-second interval. The wind is light and cross-off, so it’s clean, but the combined wave energy is moderate. It’s a surf, not a story.
Wednesday the 9th is the big one for the first week. The swell jumps to 8 feet from the SSE in the morning, with a 9-second period, and the wind is completely glassy. The combined energy is strong. This is heavy, powerful, and clean. If you’re an experienced surfer, this is your session. By the afternoon, it’s pushing 10 feet, still glassy, but with a shorter 8-second period, making it a bit more chaotic. Hardcore only.
Thursday and Friday drop off hard. Thursday the 10th has 4-foot swell from the SSE, but with a solid 12 mph offshore wind from the north, keeping it tidy. Then Saturday and Sunday are tiny – 2 to 2 feet – with glassy mornings but messy afternoon winds. The combined energy is weak. It’s a flat spell.
Monday the 14th brings a small pulse of 4 feet from the SE, with a glassy morning and a 9-second period. The energy is moderate. A chance for a surf, but nothing special.
Then we hit a real gap. From Tuesday the 15th through to Friday the 18th, it’s mostly poor. Onshore winds, mixed swell directions, and weak energy. Not worth the paddle.
Now, look at the second week. Saturday the 19th brings a solid pulse: 8 feet from the ESE, with a short 7-second period, but offshore winds make it clean. The energy is strong. This is a punchy, fun session.
Sunday the 20th is the absolute standout of the whole 16 days. Tainohama gets 7 feet from the east, with a 8-second period and light offshore winds from the north. The combined energy is very strong. This is excellent, clean, powerful surf for experienced surfers. Circle that date.
Then Monday the 21st to Wednesday the 23rd gets massive. The swell is 7 to 10 feet, with a very long 16-second period from the SE. The combined energy is extreme. The catch is the wind is cross-off, not offshore, and a long-period groundswell like this can break too straight. For a reef like Tainohama, it will be a serious, heavy, and difficult affair for experts only. The conditions are clean, but the size and period make it a beast.
So, to sum it up: The best bets are Wednesday the 9th for big, glassy power, and Sunday the 20th for that excellent, clean east swell. The long-period swell at the end is for the big-wave crew only. There’s a flat spell mid-month, so pick your windows.
Rusty.
Short Range ForecastHeavy rain (total 48mm), heaviest during Tue afternoon. Warm (max 28°C on Wed morning, min 21°C on Wed night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 6mm), mostly falling on Sat afternoon. Warm (max 29°C on Sun morning, min 22°C on Thu night). Wind will be generally light. | ||||||||||||||||||
Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | ||||||||||||||
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 8 | S 9 | S 9 | S 9 | SSE 9 | SSE 8 | SSE 8 | SSE 9 | SSE 9 | SSE 8 | SSE 8 | SSE 8 | SSE 7 | SSE 7 | SSE 7 | ESE 10 | ESE 9 | ESE 9 | ESE 9 |
Wave Graph  | |||||||||||||||||||
 kJ | 313 | 287 | 427 | 544 | 1081 | 1102 | 313 | 247 | 228 | 188 | 126 | 117 | 76 | 49 | 36 | 35 | 47 | 55 | 101 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross | glassy | glassy | off | off | off | off | glassy | cross-on | glassy | glassy | cross-on | cross-on | glassy | cross-on | cross |
High Tide | 2:58AM1.62m | 4:46PM1.75m | 3:56AM1.76m | 5:11PM1.83m | 4:42AM1.88m | 5:35PM1.88m | 5:22AM1.98m | 5:58PM1.92m | 5:59AM2.03m | 6:21PM1.95m | 6:35AM2.04m | 6:45PM1.95m | |||||||
Low Tide | 9:47PM1.19m | 9:54AM0.47m | 10:24PM1.02m | 10:36AM0.40m | 10:55PM0.86m | 11:11AM0.36m | 11:24PM0.70m | 11:44AM0.36m | 11:54PM0.56m | 12:14PM0.41m | 00:24AM0.46m | 12:44PM0.50m | 00:55AM0.39m | ||||||
 |  |  |  | | | |  |  |  | | | | | |  |  | | | |
 | — | 5:39 | — | — | 5:39 | — | — | 5:39 | — | — | 5:41 | — | — | 5:41 | — | — | 5:41 | — | — |
 | 6:20 | — | 6:19 | — | — | 6:16 | — | — | 6:15 | — | — | 6:15 | — | — | 6:13 | — | — | 6:12 | — |
mm | 3 | 8 | 13 | 6 | 6 | 9 | 2 | 1 | — | — | — | 2 | — | 1 | 3 | — | — | — | — |
Temp °C | 25 | 26 | 26 | 26 | 28 | 28 | 22 | 23 | 24 | 23 | 27 | 27 | 25 | 27 | 28 | 26 | 29 | 29 | 26 |
Feels °C | 28 | 31 | 32 | 32 | 34 | 34 | 22 | 23 | 24 | 24 | 30 | 29 | 30 | 31 | 32 | 31 | 33 | 32 | 30 |
Swell 1 Height (m) Direction Period (s) | SE 8 | S 9 | S 9 | S 9 | SSE 9 | SSE 9 | SSE 8 | SSE 9 | SSE 9 | SSE 8 | SSE 8 | SSE 8 | SSE 7 | SSE 7 | SSE 7 | ESE 10 | ESE 9 | ESE 9 | SE 5 |
| kJ | 313 | 287 | 427 | 544 | 828 | 880 | 313 | 247 | 228 | 188 | 126 | 117 | 76 | 49 | 36 | 35 | 47 | 55 | 35 |
Swell 2 Height (m) Direction Period (s) | S 10 | SE 8 | SE 8 | ESE 8 | E 18 | E 18 | E 16 | S 8 | E 15 | ESE 11 | E 15 | E 14 | ESE 10 | SE 10 | SE 10 | SSW 7 | S 7 | SE 4 | ESE 9 |
| kJ | 225 | 196 | 147 | 175 | 6 | 6 | 5 | 5 | 4 | 12 | 17 | 15 | 19 | 24 | 25 | 17 | 15 | 4 | 101 |
Swell 3 Height (m) Direction Period (s) | SW 11 | SE 10 | SE 10 | — | — | E 18 | — | E 16 | E 18 | E 15 | E 14 | E 14 | E 14 | E 13 | E 13 | SE 6 | E 13 | S 7 | S 10 |
| kJ | 29 | 26 | 49 | — | — | 6 | — | 5 | 6 | 17 | 65 | 60 | 36 | 31 | 32 | 10 | 31 | 15 | 50 |
Wind waves Height (m) Direction Period (s) | NE 3 | NNE 3 | NNE 3 | — | SSE 9 | SSE 8 | NNE 5 | NNE 5 | NE 4 | NNE 4 | NE 4 | NE 3 | NNE 3 | — | — | — | SE 3 | — | — |
| kJ | 5 | 4 | 4 | — | 1081 | 1102 | 74 | 33 | 22 | 6 | 5 | 2 | 1 | — | — | — | 2 | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 32 | 0 | 0 | 3 | 3 | 0 | 3 | 2 |
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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