
Surf Forecasts:
Tainohama surf forecast from 8 Jul 2026:
- Best quality surf: Friday 10 Jul, 3AM (local time) - 10ft (3.0m), 15s period, SSE swell with glassy winds.
- Most powerful swell: Saturday 11 Jul, 12AM (local time) - 13ft (4.0m), 18s period, S swell with 10,689 kJ wave energy.
- Next surfable swell (1★+): Friday 10 Jul, 12AM (local time) - 10ft (3.0m), 15s period with SSE 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 Friday (Jul 10) at 12AM. The primary swell is predicted to be 3.0m and 15s period with a secondary swell of 1.4m and 18s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Tainohama in the next 16 days are 4.0m 18s and forecast to arrive on Saturday (Jul 11) at 12AM. Winds are predicted to be onshore at the time the swell arrives.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Fri 10th Jul) | 10ft (3.0m) 15s |
| Best Surf | 3AM (Fri 10th Jul) | 10ft (3.0m) 15s |
| Most Powerful | 12AM (Sat 11th Jul) | 13ft (4.0m) 18s |
Table - best surf conditions forecast for Tainohama over the next 16 days.
Alright folks, Rusty here. Let’s get into it. We’ve got a solid window of serious southern groundswell heading our way, but it’s not all clean and perfect. The first few days are a bit of a battle with the wind, but the reward for the patient is a proper weekend of heavy, powerful surf.
The biggest issue right up front is the wind. Through Wednesday the 8th and Thursday the 9th, we’ve got a solid 7ft to 10ft SSE to S swell rolling in, with a very long period of 15 to 16 seconds, meaning serious energy in the water (combined energy readings from 2685 up to 3606). That’s proper groundswell, and it’s pushing a lot of water. But the wind is onshore or cross-onshore from the S and SSE at 15 km/h, and that’s going to mess up the surface. Conditions are marginal, a bit choppy. The water temperature is sitting at 76°, which is about 2° cooler than average for this time of year – a bit nippier than usual, so don’t ditch the spring suit just yet.
The real turn comes Friday the 10th. The swell builds to 12ft - 13ft out of the S, with a 17-second period. That’s massive raw energy (combined energy jumping to 7367 and 9281). The wind is still onshore, but it’s a light breeze, so it’s not wrecking it as badly. Still, the forecast calls it marginal, so it’s going to be powerful and a bit lumpy. This is big, serious stuff – definitely expert-only territory at over 8ft.
Now, Saturday the 11th is the standout. We’ve got 13ft of swell from the S/SSW, still with a 17-second period that’s just pumping juice (combined energy over 9000). The wind is a light onshore breeze from the SSE at 15 km/h. It’s not glassy, but it’s the best combo of size and manageable wind in the whole run. This is the day for the experienced crew to get after it. Tainohama is a reef, and with a long period swell like this, it’s going to focus that energy into a proper, thick wall. It’s a fairly consistent spot, but it can get crowded sometimes, so get in early.
Sunday the 12th sees the swell drop back to 8ft, still with decent 16-second period, but the wind swings a bit more onshore. The real drop-off happens Monday the 13th and Tuesday the 14th, when the swell crashes to under 4ft and the energy drops to next to nothing (422 and 292). That’s a flat spell, and it lasts for a few days.
There’s a bit of hope late in the run. On Thursday the 17th, the swell is small (4ft) but the wind goes glassy in the morning. The energy is low (430), but a glassy morning on a 4ft wave is a lovely way to get a few clean ones. Then on Saturday the 18th, we get another little bump of 4ft SSW swell with a cross-offshore wind from the NNE at 10 km/h. The combined energy is a moderate 821, and the forecast says “very good surf conditions.” That’s a sneaky good session.
So to wrap it up: the big game is Saturday the 11th. That’s your best shot for size and power. If you miss that, don’t sweat – the 18th has a clean, smaller window that’s a lot more user-friendly. The water is a bit cooler than usual, so keep that in mind.
Rusty.
Short Range ForecastMostly dry. Warm (max 26°C on Thu morning, min 23°C on Wed night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 4mm), mostly falling on Sun afternoon. Warm (max 27°C on Sun morning, min 23°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Wednesday 8 | Thursday 9 | Friday 10 | Saturday 11 | Sunday 12 | Monday 13 | Tuesday 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) | SE 15 | SE 16 | SSE 15 | SSE 15 | SSE 15 | SSE 15 | S 17 | S 17 | S 18 | S 17 | SSW 17 | SSW 17 | SSW 16 | SSW 14 | S 12 | S 10 | SSW 11 | S 11 | SSW 10 | SE 12 | SE 14 |
Wave Graph | |||||||||||||||||||||
1882 | 2314 | 3156 | 3009 | 3560 | 3943 | 7367 | 9281 | 10689 | 9002 | 8240 | 6900 | 3486 | 1833 | 625 | 225 | 363 | 229 | 163 | 141 | 648 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross-on | on | cross-on | glassy | on | on | on | on | on | cross-on | on | on | cross-on | cross-on | on | cross-on | cross-on | on | glassy |
High Tide | 12:35PM1.39m | 00:05AM1.61m | 2:23PM1.42m | 1:06AM1.61m | 3:47PM1.52m | 2:09AM1.64m | 4:44PM1.63m | 3:07AM1.70m | 5:27PM1.72m | 3:59AM1.77m | 6:04PM1.79m | 4:46AM1.83m | 6:38PM1.84m | ||||||||
Low Tide | 5:52PM1.04m | 7:22AM0.64m | 7:16PM1.15m | 8:33AM0.52m | 8:42PM1.20m | 9:31AM0.39m | 9:49PM1.19m | 10:20AM0.27m | 10:41PM1.15m | 11:04AM0.18m | 11:23PM1.09m | 11:44AM0.12m | 00:01AM1.02m | ||||||||
4:56 | — | — | 4:58 | — | — | 4:58 | — | — | 4:58 | — | — | 4:58 | — | — | 5:00 | — | — | 5:00 | — | — | |
— | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:14 | — | — | 7:14 | — | — | 7:14 | — | — | 7:13 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | 2 | 1 | 2 | — | — |
Temp °C | 24 | 25 | 23 | 26 | 26 | 24 | 26 | 26 | 25 | 25 | 25 | 24 | 27 | 26 | 25 | 27 | 27 | 25 | 28 | 27 | 24 |
Feels °C | 26 | 27 | 25 | 27 | 27 | 28 | 29 | 28 | 29 | 28 | 28 | 28 | 30 | 29 | 29 | 30 | 30 | 29 | 30 | 29 | 28 |
Swell 1 Height (m) Direction Period (s) | SE 15 | SE 16 | SSE 15 | SSE 15 | SSE 15 | SSE 15 | S 17 | S 17 | S 18 | S 17 | SSW 17 | SSW 17 | SSW 16 | SSW 14 | S 12 | S 10 | SSW 11 | S 11 | SSW 10 | SSW 10 | SE 14 |
1882 | 2314 | 3156 | 3009 | 3560 | 3943 | 7367 | 9281 | 10689 | 9002 | 8240 | 6900 | 3486 | 1833 | 625 | 225 | 363 | 229 | 163 | 128 | 648 | |
Swell 2 Height (m) Direction Period (s) | SSE 18 | SSE 18 | E 8 | S 19 | E 8 | S 18 | — | — | — | — | — | — | SE 15 | E 9 | SW 13 | SSW 12 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 |
803 | 917 | 36 | 475 | 46 | 1308 | — | — | — | — | — | — | 8 | 7 | 261 | 180 | 15 | 55 | 73 | 71 | 90 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | E 8 | — | E 8 | — | — | — | — | — | — | — | — | SE 9 | SE 10 | SE 11 | SE 15 | SE 13 | SE 12 | SSW 9 |
— | — | — | 4 | — | 31 | — | — | — | — | — | — | — | — | 22 | 17 | 18 | 9 | 56 | 141 | 90 | |
Wind waves Height (m) Direction Period (s) | — | — | — | E 8 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | 64 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 3 | 3 | 3 | 3 | 32 | 0 | 3 | 32 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 36 | 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.










