Surf Forecasts:
Tainohama surf forecast from 9 Aug 2026:
- Best quality surf: Monday 10 Aug, 12AM (local time) - 3.5ft (1.1m), 11s period, S swell with glassy winds.
- Most powerful swell: Monday 10 Aug, 12AM (local time) - 3.5ft (1.1m), 11s period, S swell with 289 kJ wave energy.
- Next surfable swell (1★+): Monday 10 Aug, 12AM (local time) - 3.5ft (1.1m), 11s 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 Monday (Aug 10) at 12AM. The primary swell is predicted to be 1.1m and 11s period with a secondary swell of 0.9m and 13s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Tainohama in the next 16 days are 1.1m 11s and forecast to arrive on Monday (Aug 10) at 12AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 5s period and expected on Tuesday (Aug 11) at 3PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Mon 10th Aug) | 3.5ft (1.1m) 11s |
| Best Surf | 12AM (Mon 10th Aug) | 3.5ft (1.1m) 11s |
| Most Powerful | 12AM (Mon 10th Aug) | 3.5ft (1.1m) 11s |
Table - best surf conditions forecast for Tainohama over the next 16 days.
The Lowdown
Alright, grab a cup of something warm, because we’ve got a long look ahead for Tainohama.
First off, the water’s sitting at a balmy 84°, which is pretty much normal for this time of year. No weird anomalies to worry about.
Right now, things are looking a bit flat and sloppy. We’ve got a small window starting Sunday the 9th, with some knee-to-waist high, 4ft swell from the SSW, but the wind is a cross-onshore mess at 6 mph. The combined energy is a weak 898, so it’s not really worth paddling out for. That sets the tone for the next week and a half – a lot of nothing.
Monday the 10th through to the end of the week is a real struggle. The swell drops and stays tiny, mostly around 2ft to 2ft, with periods around 8 to 10 seconds. You’ll see a few clean moments early Monday morning with a light offshore breeze from the north, but the swell is just too small to get excited about. The combined energy dips down to a pathetic 73 on the 20th. There are some glassy pockets on Friday the 14th morning and again on the 16th, but again, it’s just ankle-biters. This is a proper dry spell for Tainohama.
The real story, and the only standout here, comes on the far horizon. For the weekend of the 22nd and 23rd of August – that’s over a week away – we’ve got a pulse of proper groundswell. Saturday the 22nd morning starts showing a solid 6ft swell from the south, with a 12-second period. Combined energy rockets up to 1159, and the wind? Glassy as hell. That’s excellent for experienced surfers. Sunday the 23rd morning is even better: a clean 7ft from the south, still with a 12-second period, and the wind is dead calm. Combined energy sits at a strong 1141. This is a serious session for the crew who know what they’re doing. It’s too big for beginners, but for the advanced crew at Tainohama, this is the window.
After that, Monday the 24th holds some size – 6ft to 8ft – but the wind turns onshore, so it’ll be lumpy. The best of it, without doubt, is those early glassy mornings on the 22nd and 23rd.
Rusty
Short Range ForecastSome drizzle, heaviest during Wed morning. Warm (max 31°C on Mon afternoon, min 22°C on Wed morning). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 8mm), mostly falling on Thu morning. Warm (max 30°C on Sat morning, min 23°C on Wed afternoon). Wind will be generally light. | |||||||||||||||||||
Sun 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | ||||||||||||||
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) | SSW 12 | S 11 | S 10 | S 10 | S 10 | S 10 | S 10 | SSW 10 | SSW 10 | SSW 10 | SSW 10 | SSW 9 | SSW 9 | SSW 9 | S 9 | S 9 | SE 10 | S 10 | ESE 10 | S 10 |
Wave Graph  | ||||||||||||||||||||
 kJ | 378 | 289 | 242 | 190 | 216 | 216 | 212 | 173 | 173 | 90 | 131 | 90 | 86 | 86 | 81 | 79 | 87 | 94 | 122 | 125 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | glassy | cross-off | cross-off | off | cross-off | cross-off | off | off | cross | glassy | cross-on | cross-on | glassy | glassy | on | cross-off | cross-off | cross-on | glassy |
High Tide | 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 | 6:47AM2.00m | 7:28PM1.93m | |||||||
Low Tide | 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 | 1:11PM0.34m | 1:24AM0.61m | |||||||
 |  |  |  |  | | |  |  | | |  | | | | |  | | | | |
 | — | — | 5:18 | — | — | 5:20 | — | — | 5:20 | — | — | 5:20 | — | — | 5:22 | — | — | 5:22 | — | — |
 | 6:54 | — | — | 6:53 | — | — | 6:52 | — | — | 6:52 | — | — | 6:51 | — | — | 6:50 | — | — | 6:49 | — |
mm | — | — | — | — | — | — | — | — | 1 | — | — | 4 | 1 | — | — | — | 3 | — | — | — |
Temp °C | 28 | 27 | 30 | 31 | 26 | 29 | 29 | 24 | 25 | 24 | 24 | 26 | 27 | 25 | 29 | 29 | 25 | 30 | 29 | 26 |
Feels °C | 32 | 32 | 31 | 33 | 27 | 26 | 26 | 23 | 28 | 27 | 28 | 27 | 28 | 28 | 32 | 31 | 28 | 33 | 32 | 29 |
Swell 1 Height (m) Direction Period (s) | SSW 12 | S 11 | S 10 | S 10 | S 10 | S 10 | S 10 | SSW 10 | SSW 10 | S 10 | SSW 10 | SSW 9 | SSW 9 | SSW 9 | S 9 | S 9 | S 9 | SE 9 | ESE 10 | S 10 |
| kJ | 378 | 289 | 242 | 190 | 216 | 216 | 212 | 173 | 173 | 67 | 131 | 90 | 86 | 86 | 81 | 79 | 57 | 90 | 122 | 125 |
Swell 2 Height (m) Direction Period (s) | E 13 | ESE 13 | E 12 | E 12 | E 12 | E 11 | E 11 | NE 4 | E 10 | SSW 10 | ESE 5 | SE 12 | SE 12 | ESE 4 | ESE 9 | SE 11 | SE 10 | S 10 | S 9 | ESE 9 |
| kJ | 339 | 286 | 193 | 144 | 101 | 63 | 37 | 9 | 18 | 90 | 8 | 23 | 22 | 6 | 27 | 30 | 87 | 94 | 83 | 69 |
Swell 3 Height (m) Direction Period (s) | S 11 | SSW 11 | SSW 11 | SW 11 | SE 14 | SE 13 | SE 13 | E 10 | SE 13 | E 10 | SE 12 | E 10 | E 9 | E 10 | SE 11 | E 8 | E 11 | E 10 | SE 14 | SE 12 |
| kJ | 181 | 219 | 78 | 55 | 31 | 27 | 27 | 33 | 27 | 19 | 24 | 7 | 7 | 16 | 19 | 13 | 20 | 18 | 8 | 23 |
Wind waves Height (m) Direction Period (s) | — | — | — | NE 3 | NE 4 | NE 5 | NE 5 | N 4 | N 4 | NE 4 | E 5 | E 4 | ESE 4 | — | — | — | — | — | — | — |
| kJ | — | — | — | 3 | 8 | 18 | 49 | 22 | 9 | 5 | 16 | 19 | 21 | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 3 | 0 | 18 | 0 | 0 | 21 | 27 | 0 | 0 | 64 | 0 | 64 | 3 | 0 | 0 | 3 | 0 | 0 | 3 | 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.
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