Surf Forecasts:
Tainohama surf forecast from 3 Aug 2026:
- Best quality surf: Tuesday 4 Aug, 9PM (local time) - 15ft (4.5m), 16s period, ESE swell with cross-onshore winds.
- Most powerful swell: Thursday 6 Aug, 9PM (local time) - 21ft (6.5m), 17s period, SSE swell with 24,163 kJ wave energy.
- Next surfable swell (1★+): Tuesday 4 Aug, 9PM (local time) - 15ft (4.5m), 16s 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 Tuesday (Aug 04) at 9PM. The primary swell is predicted to be 4.5m and 16s period with a secondary swell of 3.5m and 16s. The wind is predicted to be cross-onshore as the swell arrives.
The most powerful waves expected at Tainohama in the next 16 days are 6.5m 17s and forecast to arrive on Thursday (Aug 06) at 9PM. Winds are predicted to be cross-shore at the time the swell arrives.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Tue 4th Aug) | 15ft (4.5m) 16s |
| Best Surf | 9PM (Tue 4th Aug) | 15ft (4.5m) 16s |
| Most Powerful | 9PM (Thu 6th Aug) | 21ft (6.5m) 17s |
Table - best surf conditions forecast for Tainohama over the next 16 days.
The Lowdown
G’day, Rusty here. Let’s break down what’s cooking at Tainohama for the next couple weeks. The water’s running a touch warmer than normal for this time of year, about 84°, with a 2° anomaly – not a huge deal, but it’s nice if you’re thinking about a thinner suit.
The week kicks off on Monday the 3rd of August, but it’s a slow starter. Early morning there’s a 1.5m swell from the ESE, with a very long 16-second period, and light cross winds from the ENE at 3 mph. The surface is glassy, and the combined energy is moderate-high at 1257. But it’s a brief window – the afternoon goes onshore and messy. It’s an early-bird special, nothing more.
Tuesday the 4th starts to get real. Morning swell is 3.0m from the ESE, same long period, light onshore wind, energy climbing to 6779. The afternoon brings a 4.0m swell from the ESE at a long 17-second period, but with a cross-onshore breeze it’s choppy. The energy is strong at 14569. There’s a wave in there, but you’ll be fighting the bump.
Now, Wednesday the 5th of August is the first real standout. The morning is firing: 4.5m from the SE, 17-second period, with a light cross-offshore wind from the NE at 6 mph. Clean, powerful, and the combined energy is massive at 12158. This is for the experts only – the swell is over 2.5m, so it’s a big-wave day. The afternoon jumps to 5.0m, but the wind turns and it’s no longer surfable.
Thursday the 6th and Friday the 7th keep the huge energy going, with 6.0m to 6.5m swells, but the wind gets cross-shore and onshore, making it blown-out. The standout window is clearly Wednesday morning – pure power and clean conditions.
After that, the swell backs off. Saturday the 8th and Sunday the 9th have some size but the wind is messy. Then we hit a lull. Monday the 10th and Tuesday the 11th are small, but Tuesday morning has a 1.5m swell from the SSW with a 12-second period and dead calm, glassy conditions. The energy is low at 1292, but the surface is perfect. A smooth session for experienced surfers.
Wednesday the 12th and Thursday the 13th stay small, around 1.0m from the SSW, with glassy or clean mornings. Great for a longboard. Friday the 14th is similar, clean and small.
Then we get another pulse on Sunday the 16th of August: a 1.8m swell from the ESE, 11-second period, with a light cross-offshore wind and moderate energy at 863. Monday the 17th is the second standout – the swell jumps to 3.5m from the ESE, 13-second period, with completely glassy conditions and the energy at 4409. This is an excellent, clean, powerful session for experienced surfers. The morning is the pick.
Tuesday the 18th still has size but onshore winds spoil it.
So, the two true standouts: Wednesday the 5th of August morning – big, clean, and powerful for the advanced crew. And Monday the 17th of August morning – glassy, strong, and clean for those who want the power without the blow.
Rusty out.
Short Range ForecastSome drizzle, heaviest during Mon morning. Warm (max 31°C on Wed afternoon, min 25°C on Tue night). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 22mm), heaviest during Sat afternoon. Warm (max 32°C on Thu afternoon, min 25°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | |||||||||||||||
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 16 | ESE 16 | ESE 17 | ESE 16 | ESE 17 | ESE 17 | SE 17 | SE 17 | SE 16 | SE 17 | SSE 17 | SSE 17 | SSE 16 | S 15 | S 15 | SSW 15 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | SSW 14 |
Wave Graph  | |||||||||||||||||||||
 kJ | 1223 | 1393 | 2437 | 4324 | 8554 | 8569 | 12158 | 15328 | 16477 | 20742 | 22325 | 22995 | 17626 | 8891 | 8338 | 7092 | 5700 | 4971 | 4060 | 2593 | 1126 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | on | on | on | cross-on | on | cross-off | cross-on | cross-off | cross-off | cross-on | cross | cross | cross-on | cross | cross | cross-on | cross | cross-on | on | on |
High Tide | 8:56PM1.82m | 9:22AM1.66m | 9:26PM1.77m | 10:22AM1.52m | 10:01PM1.71m | 11:52AM1.41m | 10:46PM1.65m | 2:17PM1.41m | 11:57PM1.59m | 3:58PM1.53m | 1:36AM1.59m | 4:44PM1.65m | 2:58AM1.66m | ||||||||
Low Tide | 2:42PM0.63m | 3:14AM0.65m | 3:15PM0.81m | 4:03AM0.67m | 3:50PM1.00m | 5:07AM0.69m | 4:36PM1.17m | 6:32AM0.68m | 6:10PM1.32m | 8:05AM0.61m | 8:34PM1.34m | 9:18AM0.49m | 9:53PM1.26m | ||||||||
 |  |  | |  | | | |  | | | | | |  |  | | | | | | |
 | 5:13 | — | — | 5:15 | — | — | 5:15 | — | — | 5:16 | — | — | 5:16 | — | — | 5:16 | — | — | 5:18 | — | — |
 | — | 7:00 | — | — | 7:00 | — | — | 6:59 | — | — | 6:58 | — | — | 6:57 | — | — | 6:55 | — | — | 6:54 | — |
mm | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 7 | 11 | 2 | — | — | — |
Temp °C | 30 | 30 | 27 | 28 | 29 | 27 | 30 | 31 | 27 | 31 | 32 | 28 | 31 | 31 | 27 | 28 | 27 | 26 | 29 | 29 | 25 |
Feels °C | 34 | 34 | 30 | 30 | 31 | 30 | 32 | 34 | 30 | 33 | 34 | 30 | 32 | 31 | 30 | 30 | 28 | 29 | 29 | 30 | 26 |
Swell 1 Height (m) Direction Period (s) | ESE 16 | ESE 16 | ESE 17 | ESE 16 | ESE 17 | ESE 17 | SE 17 | SE 17 | SE 16 | SE 17 | SSE 17 | SSE 17 | SSE 16 | S 15 | S 15 | SSW 15 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | SE 8 |
| kJ | 1223 | 1393 | 2437 | 4324 | 6015 | 8569 | 12158 | 15328 | 16477 | 20742 | 22325 | 22995 | 17626 | 8891 | 8338 | 7092 | 5700 | 4971 | 4060 | 2593 | 456 |
Swell 2 Height (m) Direction Period (s) | SE 10 | S 8 | SE 12 | ESE 19 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | E 13 | ESE 12 | SSW 14 |
| kJ | 15 | 5 | 6 | 1802 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 123 | 160 | 1126 |
Swell 3 Height (m) Direction Period (s) | S 8 | S 8 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | S 12 |
| kJ | 5 | 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 225 |
Wind waves Height (m) Direction Period (s) | E 4 | ESE 6 | ESE 7 | E 9 | ESE 17 | — | — | — | — | — | — | — | E 10 | ESE 10 | ESE 10 | ESE 9 | ESE 9 | SE 9 | ESE 9 | ESE 9 | — |
| kJ | 14 | 118 | 200 | 653 | 8554 | — | — | — | — | — | — | — | 1559 | 2804 | 1578 | 1131 | 1251 | 1374 | 1104 | 947 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 19 | 3 | 3 | 3 | 3 | 3 | 0 | 488 | 22 | 482 | 1742 | 438 | 1825 | 438 | 22 | 438 | 438 | 438 | 2098 | 1742 | 77 |
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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