
Surf Forecasts:
Tainohama surf forecast from 8 Aug 2026:
- Best quality surf: Sunday 9 Aug, 6AM (local time) - 5ft (1.5m), 12s period, SSW swell with glassy winds.
- Most powerful swell: Saturday 8 Aug, 3PM (local time) - 5ft (1.6m), 11s period, S swell with 629 kJ wave energy.
- Next surfable swell (1★+): Sunday 9 Aug, 3AM (local time) - 4.5ft (1.4m), 11s period with SSW 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 Sunday (Aug 09) at 3AM. The primary swell is predicted to be 1.4m and 11s period with a secondary swell of 1.1m and 8s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Tainohama in the next 16 days are 1.6m 11s and forecast to arrive on Saturday (Aug 08) at 3PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 4s period and expected on Tuesday (Aug 11) at 12PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Sun 9th Aug) | 4.5ft (1.4m) 11s |
| Best Surf | 6AM (Sun 9th Aug) | 5ft (1.5m) 12s |
| Most Powerful | 3PM (Sat 8th Aug) | 5ft (1.6m) 11s |
Table - best surf conditions forecast for Tainohama over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at what’s on offer for Tainohama over the next couple of weeks. It’s a bit of a slow start, but there are some real gems hiding in the second week if you’ve got the patience.
First off, the water’s sitting at a warm 84°, which is a touch warmer than normal for this time of year – makes for a nice session without needing a thick suit.
We kick off on Saturday the 8th with a bit of a fizzer. There’s some chest-high swell around 6 ft from the south, with 11-second groundswell and a combined energy of 1392 – so there’s plenty of push there – but the wind is a cross-onshore breeze at 9 mph, making things choppy and confused. The combo of size and bumpy conditions really only suits the advanced crew. The afternoon cleans up a little with the same S swell at 5 ft, but the onshore wind still has it messy.
Sunday the 9th drops off a bit in size, with 4 ft SSW swell in the morning and a longer 12-second period, but it’s still cross-onshore. Not great.
Then we hit a flat spell. From Monday the 12th right through to Friday the 16th, the wave heights drop below 3 ft, and the energy falls right off. It’s mostly poor conditions or tiny, weak surf. A lot of days you’re looking at under 200 combined energy – barely a ripple.
BUT – and this is a big but – Saturday the 15th afternoon things start to turn. We get a 4 ft ESE swell with a glassy wind. That’s clean, fun-sized surf, and the combined energy jumps to 550. This is where it gets interesting.
The real standout, though, comes on Sunday the 16th. Morning has a clean 4 ft ESE swell, 11-second period, with an offshore wind from the NNW at just 3 mph. Combined energy at 524. Then the afternoon glass off – 4 ft ESE, period stretching out to 12 seconds, and that glassy wind. That’s the best window of the whole outlook. Tainohama is a reef break that’s fairly consistent and handles a south swell best, but this ESE direction at moderate size with clean winds is going to be firing. The crowd factor here can be an issue – it’s sometimes packed – but for that Sunday afternoon session, you’ll want to get in early.
After that, Monday the 17th and Tuesday the 18th see the swell fade back to tiny, waist-high or smaller, with combined energy dropping to 128 and below. It’s surfable but nothing to write home about.
A little blip comes on Thursday the 20th afternoon, with a 4 ft SE swell but short 7-second period and onshore wind making it messy – that’s a kite surfer’s day more than a paddler’s.
There’s another flicker of hope on Saturday the 22nd morning: 4 ft S swell, 11-second period, glassy wind, combined energy of 378. Clean and fun, but not as meaty as that Sunday the 16th window.
Bottom line: if you can only pick one day, make it Sunday the 16th of August. That ESE swell with glassy or offshore winds at Tainohama is the standout. The rest of the period is either too small, too onshore, or too weak to get excited about.
Rusty.
Short Range ForecastLight rain (total 7mm), mostly falling on Sat morning. Warm (max 29°C on Sat morning, min 23°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummaryModerate rain (total 17mm), heaviest on Thu morning. Warm (max 29°C on Tue morning, min 23°C on Tue night). Wind will be generally light. | ||||||||||||||||||||
Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | |||||||||||||||
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 11 | S 11 | SSW 11 | SSW 12 | SSW 12 | S 12 | S 10 | S 10 | S 11 | S 10 | SSW 10 | SSW 11 | SSW 11 | SSW 10 | SSW 10 | SSW 10 | SSW 10 | SSW 9 | SSW 9 | SSW 9 | SE 11 |
Wave Graph | |||||||||||||||||||||
792 | 629 | 447 | 436 | 390 | 286 | 296 | 192 | 275 | 250 | 276 | 140 | 249 | 236 | 180 | 131 | 123 | 113 | 86 | 86 | 73 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | on | cross | glassy | glassy | cross-off | cross-off | cross-off | off | cross-off | on | on | on | cross-on | glassy | cross | cross | glassy |
High Tide | 3:58PM1.53m | 1:36AM1.59m | 4:44PM1.65m | 2:58AM1.66m | 5:17PM1.75m | 3:58AM1.76m | 5:46PM1.83m | 4:47AM1.87m | 6:13PM1.88m | 5:29AM1.95m | 6:38PM1.92m | 6:09AM2.00m | 7:03PM1.93m | ||||||||
Low Tide | 8:34PM1.34m | 9:18AM0.49m | 9:53PM1.26m | 10:11AM0.37m | 10:39PM1.15m | 10:54AM0.28m | 11:15PM1.03m | 11:32AM0.23m | 11:48PM0.90m | 12:07PM0.22m | 00:20AM0.79m | 12:40PM0.26m | 00:51AM0.69m | ||||||||
5:16 | — | — | 5:18 | — | — | 5:18 | — | — | 5:20 | — | — | 5:20 | — | — | 5:20 | — | — | 5:22 | — | — | |
— | 6:55 | — | — | 6:54 | — | — | 6:53 | — | — | 6:52 | — | — | 6:52 | — | — | 6:51 | — | — | 6:50 | — | |
mm | 3 | — | — | — | — | 2 | 1 | 1 | — | — | — | — | — | 1 | 5 | 7 | 2 | 2 | 2 | 4 | — |
Temp °C | 29 | 29 | 26 | 29 | 29 | 26 | 28 | 28 | 27 | 29 | 29 | 25 | 28 | 28 | 25 | 26 | 27 | 25 | 27 | 25 | 25 |
Feels °C | 31 | 31 | 30 | 32 | 31 | 30 | 32 | 32 | 30 | 29 | 29 | 27 | 29 | 29 | 27 | 29 | 29 | 28 | 30 | 28 | 28 |
Swell 1 Height (m) Direction Period (s) | SE 9 | S 11 | SSW 11 | SSW 12 | SSW 12 | S 12 | S 10 | S 10 | S 11 | S 10 | SSW 10 | S 10 | SSW 11 | SSW 10 | SSW 10 | SSW 10 | SSW 10 | SSW 9 | SSW 9 | SSW 9 | SSW 9 |
515 | 629 | 447 | 436 | 390 | 274 | 296 | 192 | 275 | 250 | 276 | 127 | 249 | 236 | 180 | 131 | 123 | 113 | 86 | 86 | 64 | |
Swell 2 Height (m) Direction Period (s) | S 11 | SE 8 | SE 8 | ESE 13 | SSE 10 | SSW 11 | E 12 | E 12 | E 12 | E 11 | E 11 | SSW 11 | SE 13 | E 10 | SE 12 | SE 12 | SE 12 | ESE 5 | ESE 5 | SE 11 | ESE 5 |
792 | 327 | 177 | 372 | 281 | 270 | 193 | 141 | 98 | 38 | 37 | 140 | 27 | 18 | 24 | 23 | 22 | 19 | 8 | 31 | 17 | |
Swell 3 Height (m) Direction Period (s) | SSW 15 | ESE 10 | ESE 10 | SE 7 | E 13 | ESE 13 | SW 11 | SSW 12 | SE 14 | SW 11 | SE 13 | E 10 | E 10 | SE 13 | E 10 | E 10 | E 10 | SE 12 | SE 11 | E 9 | SE 11 |
85 | 71 | 104 | 79 | 339 | 286 | 64 | 90 | 30 | 33 | 27 | 18 | 8 | 26 | 7 | 7 | 7 | 22 | 20 | 6 | 73 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | NE 4 | NE 4 | — | NE 3 | ENE 3 | ESE 5 | ESE 5 | ESE 4 | — | — | ESE 5 | — |
— | — | — | — | — | — | — | — | — | 9 | 6 | — | 2 | 3 | 37 | 28 | 15 | — | — | 8 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 64 | 3 | 3 | 64 | 3 | 2 | 0 | 0 | 18 | 18 | 0 | 0 | 0 | 406 | 3 | 3 | 3 | 0 | 19 | 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.











