
Surf Forecasts:
Tainohama surf forecast from 1 Aug 2026:
- Best quality surf: Wednesday 5 Aug, 6PM (local time) - 18ft (5.5m), 17s period, SE swell with glassy winds.
- Most powerful swell: Thursday 6 Aug, 9AM (local time) - 20ft (6.0m), 17s period, SE swell with 20,962 kJ wave energy.
- Next surfable swell (1★+): Saturday 1 Aug, 9PM (local time) - 1.5ft (0.4m), 11s 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 Saturday (Aug 01) at 9PM. The primary swell is predicted to be 0.2m and 18s period with a secondary swell of 0.4m and 11s. Another secondary swell of 0.4m and 5s is also forecast. 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 6.0m 17s and forecast to arrive on Thursday (Aug 06) at 9AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 4s period and expected on Sunday (Aug 02) at 3PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Sat 1st Aug) | 1.5ft (0.4m) 11s |
| Best Surf | 6PM (Wed 5th Aug) | 18ft (5.5m) 17s |
| Most Powerful | 9AM (Thu 6th Aug) | 20ft (6.0m) 17s |
Table - best surf conditions forecast for Tainohama over the next 16 days.
The Lowdown
Alright, let's hash this out. There's a dead flat start at the beginning, nothing worth a paddle on the 1st of August. The real action starts stirring on Sunday the 2nd.
Water temp's sitting around 84°, a touch warmer than average for this time of year, so no need for anything heavy.
Sunday morning you're looking at a clean little pulse, about 2ft from the ESE with a super long 18-second period. That's proper groundswell. Wind is a light cross-offshore from the NNE, so the surface should be smooth. Combined energy is only 335, so not a lot of punch, but a decent way to start the day. By afternoon it bumps to about 4ft, still cross-off, and energy jumps to 682. Still just marginal, but the clean surface makes it worth a look.
Now Monday the 3rd, that's where we start getting some grunt. Monday morning: 5ft from the ESE, 16-second period, and a light cross-offshore wind from the NE. Clean, lined-up waves. Energy is 1272, which is a solid, moderate push. This is the first real standout for experienced surfers. Beginners might find that 5ft a handful. Good thing is Tainohama is a reef setup, so that long-period swell will wrap in sweet and not just close out.
Monday afternoon gets messy – still around 5ft but wind swings cross-on and there's a risk of thunderstorms. Could get sloppy quick.
Tuesday the 4th, it's a big ramp. Morning has 10ft from the ESE, but straight onshore wind from the SSE, and energy is 5327. That's strong wave energy. Clean it is not. That's expert-only territory, if even that. By afternoon it's 10ft, still onshore, and energy is 6831 – looks way more suited for kite surfing than paddling.
Now, dial in on Wednesday the 5th and Thursday the 6th. These are the best of the whole run. Wednesday morning: 15ft from the SE, 17-second period, and a light cross-shore wind from the ENE. The energy is massive at 11588. That is powerful, deep-water groundswell. Wednesday afternoon hits 16ft and even cleaner. This is world-class size for skilled surfers at Tainohama.
Thursday the 6th is the peak. Morning shows a 20ft SE swell, cross-off wind from the ENE, and a staggering 20962 combined energy. The report flat out says the swell is predicted to be too big for this break. That's only for the absolute best, most experienced chargers. Thursday afternoon is similar at 20ft but with a moderate cross-onshore making it choppy.
After that, the swell drops steadily through the second week. Friday the 7th still has big 18ft to 16ft surf, but wind issues and thunderstorms make it a gamble. By Saturday the 8th it's 13ft and weakening. From Sunday the 9th onward it's fading fast – down to around 8ft, then 5ft, then below 3ft by the 12th and 13th, with persistent cross-onshore winds and lumpy conditions. There's a long stretch of several days there where it's just not worth getting wet, all the way through the 15th.
A little flicker on the 16th of August with a 4ft pulse from the ESE, but only a 9-second period and unknown wind quality. Don't get too excited about that one.
So if you're asking me, the absolute best on offer is Wednesday the 5th through Thursday the 6th. Massive, long-period groundswell, clean morning windows, and the reef at Tainohama should handle it beautifully. That is a solid, heavy, expert-only session. For the rest of us, the Monday the 3rd morning window looks like a much more manageable and clean option. Keep an eye on the wind, because once that cross-onshore kicks in, the quality drops fast.
Rusty.
Short Range ForecastLight rain (total 5mm), mostly falling on Mon morning. Warm (max 34°C on Sun afternoon, min 26°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 8mm), mostly falling on Thu night. Warm (max 31°C on Thu morning, min 26°C on Tue night). Wind will be generally light. | |||||||||||||||||||
Sat 1 | Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | ||||||||||||||
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 11 | SE 16 | ESE 18 | ESE 16 | ESE 15 | ESE 16 | ESE 16 | ESE 17 | ESE 17 | ESE 17 | ESE 17 | SE 17 | SE 17 | SE 17 | SE 17 | SSE 16 | SSE 16 | SSE 16 | SSE 16 | S 16 |
Wave Graph | ||||||||||||||||||||
29 | 64 | 174 | 671 | 621 | 1223 | 1327 | 2494 | 4831 | 6156 | 9317 | 11588 | 14693 | 18397 | 20962 | 18557 | 16002 | 14375 | 12829 | 10401 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | off | cross-off | cross-off | off | cross-off | cross-on | on | on | on | on | cross | on | glassy | cross-off | cross-on | cross | cross | cross-on | cross |
High Tide | 8:02PM1.88m | 7:52AM1.88m | 8:29PM1.85m | 8:35AM1.79m | 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 | |||||||
Low Tide | 1:55AM0.70m | 2:11PM0.47m | 2:32AM0.66m | 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 | ||||||||
— | — | 5:13 | — | — | 5:13 | — | — | 5:15 | — | — | 5:15 | — | — | 5:16 | — | — | 5:16 | — | — | |
7:01 | — | — | 7:01 | — | — | 7:00 | — | — | 7:00 | — | — | 6:59 | — | — | 6:58 | — | — | 6:57 | — | |
mm | — | — | — | — | — | 2 | 2 | 1 | — | — | — | — | — | — | — | — | 4 | 4 | 10 | 8 |
Temp °C | 31 | 29 | 33 | 34 | 30 | 30 | 30 | 27 | 29 | 29 | 27 | 30 | 30 | 27 | 31 | 31 | 28 | 29 | 28 | 26 |
Feels °C | 34 | 33 | 34 | 34 | 33 | 34 | 35 | 30 | 32 | 31 | 31 | 33 | 33 | 31 | 33 | 32 | 31 | 31 | 29 | 29 |
Swell 1 Height (m) Direction Period (s) | SE 11 | SE 16 | ESE 18 | ESE 16 | ESE 15 | ESE 16 | ESE 16 | ESE 17 | ESE 17 | ESE 17 | ESE 17 | SE 17 | SE 17 | SE 17 | SE 17 | SSE 16 | SSE 16 | SSE 16 | SSE 16 | S 16 |
29 | 64 | 174 | 671 | 621 | 1223 | 1327 | 2494 | 4831 | 6156 | 9317 | 11588 | 14693 | 18397 | 20962 | 18557 | 16002 | 14375 | 12829 | 10401 | |
Swell 2 Height (m) Direction Period (s) | S 4 | SE 11 | ESE 14 | S 7 | SE 10 | SSE 10 | S 8 | — | — | — | — | — | — | — | — | — | — | — | — | — |
1 | 18 | 120 | 4 | 15 | 9 | 5 | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Swell 3 Height (m) Direction Period (s) | ESE 17 | ESE 19 | SE 9 | SSW 8 | SSW 8 | S 8 | S 8 | — | — | — | — | — | — | — | — | — | — | — | — | — |
28 | 35 | 41 | 7 | 6 | 5 | 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | — | NE 4 | NNE 4 | — | E 5 | ESE 7 | ESE 7 | E 8 | E 8 | — | — | — | — | — | — | — | — | — | — |
— | — | 2 | 8 | — | 35 | 162 | 227 | 496 | 675 | — | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 500 | 0 | 21 | 18 | 0 | 0 | 3 | 3 | 3 | 64 | 3 | 64 | 489 | 3 | 482 | 438 | 77 | 482 | 454 | 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.











