Surf Forecasts:
Tainohama surf forecast from 4 Sep 2026:
- Best quality surf: Sunday 6 Sep, 6AM (local time) - 10ft (3.0m), 9s period, E swell with cross-offshore winds.
- Most powerful swell: Sunday 6 Sep, 9PM (local time) - 10ft (3.0m), 11s period, ESE swell with 2,112 kJ wave energy.
- Next surfable swell (1★+): Friday 4 Sep, 12PM (local time) - 5ft (1.5m), 10s 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 Friday (Sep 04) at 12PM. The primary swell is predicted to be 1.5m and 10s period with a secondary swell of 0.3m and 9s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Tainohama in the next 16 days are 3.0m 11s and forecast to arrive on Sunday (Sep 06) at 9PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.7m 6s period and expected on Friday (Sep 04) at 6PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12PM (Fri 4th Sep) | 5ft (1.5m) 10s |
| Best Surf | 6AM (Sun 6th Sep) | 10ft (3.0m) 9s |
| Most Powerful | 9PM (Sun 6th Sep) | 10ft (3.0m) 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 Tainohama has in store for us over the next couple of weeks.
It’s a slow start, with nothing really worth paddling out for on the first few days. Friday and Saturday are write-offs with only small, messy waves and poor conditions. The water temp is about average for this time of year, so no surprises there.
Things start to get interesting on Sunday the 6th. The morning is looking pretty good, with a 5ft southeast swell pushing through and a gentle offshore wind cleaning things up. The wave energy is solid (447), and the sets will have a bit of shape. The afternoon picks up a bit more size to 7ft, but the wind swings onshore, making it a bit messy. Still, the morning is your best bet for a decent session.
Monday the 7th has a similar vibe, with a 6ft swell in the morning, but the wind isn't quite as clean. It’s surfable, but not the best we’ll see.
Now, if you're an experienced surfer, mark your calendar for Wednesday the 9th. This is the standout. We’ve got a solid 8ft to 10ft southeast swell hitting the reef, and the wind goes glassy in the afternoon. The wave energy is pumping (1240 and 1755). This is a proper groundswell, with a period over 10 seconds, meaning it’ll have some real punch and power. This is definitely one for the advanced crew only, as it’s too big for beginners. The reef setup at Tainohama will handle this swell beautifully.
The rest of the week is a bit of a mixed bag. Thursday the 10th gets hammered by strong onshore winds, so give it a miss. The following weekend and into the next week, we see a few more promising windows. Sunday the 13th and Monday the 14th both have solid 5ft to 6ft east-southeast swells with light offshore winds in the mornings. The wave energy is decent (710 and 731), and the consistency is fair. The sets will have a longer period, around 8 seconds, which is solid.
Overall, the best bet by a long shot is Wednesday the 9th for the experienced crew. The Sunday and Monday after that are your next best options for a clean, fun session. The crowds can be an issue at Tainohama sometimes, so be prepared for that.
Rusty.
Short Range ForecastHeavy rain (total 185mm), heaviest during Fri afternoon. Warm (max 25°C on Fri morning, min 21°C on Fri afternoon). Winds increasing (light winds from the N on Fri night, fresh winds from the N by Sun night). | Days 4-6 Weather SummaryHeavy rain (total 30mm), heaviest during Mon morning. Warm (max 28°C on Tue morning, min 23°C on Mon morning). Mainly fresh winds. | ||||||||||||||||||||
Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | |||||||||||||||
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 10 | S 10 | SSW 10 | SSW 9 | SSW 9 | ESE 7 | E 9 | ESE 10 | SE 11 | SE 10 | SE 10 | SE 10 | S 11 | S 11 | S 10 | S 9 | SE 8 | SE 8 | SE 7 | SE 8 | ESE 6 |
Wave Graph  | |||||||||||||||||||||
 kJ | 408 | 362 | 166 | 141 | 119 | 256 | 1669 | 1163 | 1081 | 876 | 520 | 293 | 284 | 379 | 217 | 108 | 115 | 109 | 44 | 82 | 127 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | off | off | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | off | cross-off | cross-off | off | off | cross-off | cross-off | cross-off | cross-off | off |
High Tide | 11:25AM1.42m | 9:41PM1.64m | 2:23PM1.42m | 10:58PM1.53m | 3:47PM1.54m | 1:25AM1.51m | 4:20PM1.66m | 2:58AM1.62m | 4:46PM1.75m | 3:56AM1.76m | 5:11PM1.83m | 4:42AM1.88m | 5:35PM1.88m | ||||||||
Low Tide | 3:42PM1.25m | 5:46AM0.69m | 5:33PM1.39m | 7:38AM0.67m | 8:48PM1.34m | 9:00AM0.57m | 9:47PM1.19m | 9:54AM0.47m | 10:24PM1.02m | 10:36AM0.40m | 10:55PM0.86m | 11:11AM0.36m | 11:24PM0.70m | ||||||||
 |  |  |  |  |  | | | | | | |  |  |  | | |  | | | | |
 | 5:35 | — | — | 5:37 | — | — | 5:37 | — | — | 5:37 | — | — | 5:39 | — | — | 5:39 | — | — | 5:39 | — | — |
 | — | 6:23 | — | — | 6:22 | — | — | 6:21 | — | — | 6:20 | — | — | 6:19 | — | — | 6:16 | — | — | 6:15 | — |
mm | 17 | 45 | 39 | 7 | 1 | 3 | 8 | 29 | 36 | 23 | 4 | 3 | — | — | — | — | — | — | 1 | 3 | 17 |
Temp °C | 25 | 21 | 22 | 23 | 23 | 24 | 25 | 23 | 24 | 23 | 24 | 24 | 28 | 27 | 25 | 28 | 28 | 25 | 23 | 22 | 24 |
Feels °C | 28 | 18 | 23 | 24 | 24 | 26 | 28 | 23 | 23 | 22 | 25 | 25 | 29 | 29 | 26 | 26 | 26 | 23 | 21 | 21 | 28 |
Swell 1 Height (m) Direction Period (s) | S 10 | S 10 | SSW 10 | SSW 9 | ESE 7 | ESE 7 | ESE 9 | ESE 10 | E 10 | SE 10 | SE 10 | SE 10 | S 11 | S 11 | SE 9 | SE 8 | SE 8 | SE 8 | SE 7 | SE 8 | S 7 |
| kJ | 408 | 362 | 166 | 141 | 70 | 256 | 729 | 1163 | 1081 | 876 | 520 | 293 | 284 | 379 | 217 | 100 | 115 | 109 | 44 | 82 | 27 |
Swell 2 Height (m) Direction Period (s) | SE 9 | ESE 9 | ESE 6 | ESE 7 | SSW 9 | SSW 9 | SSW 9 | SSW 9 | SE 11 | E 9 | S 11 | S 11 | SE 9 | SE 9 | S 10 | S 9 | S 9 | S 8 | SSE 8 | ESE 10 | SE 9 |
| kJ | 31 | 17 | 31 | 54 | 119 | 67 | 31 | 8 | 1027 | 173 | 121 | 182 | 176 | 172 | 183 | 108 | 76 | 36 | 21 | 9 | 13 |
Swell 3 Height (m) Direction Period (s) | E 9 | SE 9 | SSE 8 | SE 9 | E 9 | — | — | SSE 10 | — | SSW 10 | SW 10 | SW 11 | — | SE 12 | NE 5 | SSE 9 | E 18 | E 16 | SSW 8 | NNE 3 | ESE 11 |
| kJ | 16 | 13 | 33 | 13 | 2 | — | — | 10 | — | 10 | 4 | 5 | — | 73 | 12 | 46 | 6 | 5 | 22 | 1 | 12 |
Wind waves Height (m) Direction Period (s) | NE 3 | NNE 5 | NE 4 | NNE 4 | NNE 4 | NNE 4 | E 9 | NNE 4 | NNE 5 | NNE 5 | NNE 5 | NNE 5 | NNE 6 | NE 5 | NNE 5 | NE 4 | NE 4 | NE 4 | NNE 4 | E 5 | ESE 6 |
| kJ | 8 | 130 | 14 | 16 | 7 | 5 | 1669 | 19 | 50 | 74 | 36 | 38 | 47 | 35 | 35 | 5 | 9 | 18 | 9 | 41 | 127 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 64 | 0 | 0 | 21 | 0 | 0 | 64 | 77 | 36 | 0 | 0 | 21 | 21 | 0 | 0 | 64 | 64 | 64 | 64 | 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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