Surf Forecasts:
Tainohama surf forecast from 22 Aug 2026:
- Best quality surf: Tuesday 25 Aug, 3AM (local time) - 11ft (3.5m), 16s period, SSE swell with glassy winds.
- Most powerful swell: Tuesday 25 Aug, 6PM (local time) - 11ft (3.5m), 15s period, SSE swell with 5,859 kJ wave energy.
- Next surfable swell (1★+): Sunday 23 Aug, 6AM (local time) - 2ft (0.6m), 8s 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 23) at 6AM. The primary swell is predicted to be 0.6m and 8s period with a secondary swell of 0.3m and 10s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Tainohama in the next 16 days are 3.5m 15s and forecast to arrive on Tuesday (Aug 25) at 6PM. 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+) | 6AM (Sun 23rd Aug) | 2ft (0.6m) 8s |
| Best Surf | 3AM (Tue 25th Aug) | 11ft (3.5m) 16s |
| Most Powerful | 6PM (Tue 25th Aug) | 11ft (3.5m) 15s |
Table - best surf conditions forecast for Tainohama over the next 16 days.
The Lowdown
Alright, this is Rusty talkin’. Let’s get into it.
Right now, it’s a bit of a slow start. The first few days are lookin’ flat and messy – not worth paddlin’ out for. We’re lookin’ at a stretch from the 22nd right through to the 23rd where it’s just poor surf, light and choppy cross-on winds. Nothin’ to get excited about.
Come Monday the 24th, things start to wake up. Tainohama sees a jump in swell, but the winds are still cross-on, and the surf is only marginal. By Tuesday the 25th, we’ve got a big push of 12 ft swell from the SSE, with a long period of 15 seconds. That’s a proper groundswell. The combined energy is strong at 5407 (moderate to strong). But here’s the thing – that size is only for the experienced crew. Beginners need to sit this one out. The morning looks better than the afternoon with light cross-onshore wind.
The standout, and I mean the real standout, hits on the 5th of September. That Saturday afternoon, Tainohama cleans up nicely with a solid 10 ft swell from the S, a period of 12 seconds, and offshore wind from the north at 9 mph. The water temp is 83°, which is about normal for this time of year. The combined energy is pumpin’ at 3996 (moderate). This is the best on offer – big, clean lines for experts. The morning of the 5th also looks great with cross-offshore wind, but the afternoon has that sweet offshore glass.
Before that, the 1st of September brings a nice little window. Tuesday afternoon has a clean 5 ft swell from the S with a 14-second period and cross-offshore wind. That’s a fun, surfable size for most. The 4th of September also offers a morning session with 10 ft swell and clean cross-off winds – another one for the experienced.
Overall, we’ve got a gap of poor surf from the 22nd to the 23rd, then some marginal stuff through the 24th to the 29th. The 30th and 31st are back to poor. It’s not until the 1st of September we start seein’ the good stuff again. The 5th of September is the one to circle.
Stay patient, and keep an eye on that Saturday the 5th. Rusty out.
Short Range ForecastSome drizzle, heaviest during Sat night. Warm (max 30°C on Sun morning, min 25°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 54mm), heaviest during Thu night. Warm (max 29°C on Tue afternoon, min 25°C on Wed afternoon). Wind will be generally light. | |||||||||||||||||||
Sat 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | ||||||||||||||
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 9 | SSW 8 | SSW 8 | SE 13 | SE 12 | SE 16 | SE 16 | SSE 16 | SSE 15 | SSE 15 | SSE 15 | S 14 | S 13 | S 11 | S 10 | S 10 | S 10 | S 10 | S 9 | S 9 |
Wave Graph  | ||||||||||||||||||||
 kJ | 80 | 55 | 54 | 45 | 152 | 783 | 1899 | 4905 | 5373 | 5624 | 5684 | 4376 | 1958 | 941 | 1163 | 1109 | 1160 | 1154 | 780 | 393 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-on | cross-on | on | cross-on | on | on | on | cross-on | on | cross-on | cross-on | cross-on | cross-on |
High Tide | 3:26PM1.47m | 00:26AM1.55m | 4:19PM1.60m | 2:18AM1.59m | 4:51PM1.71m | 3:30AM1.70m | 5:17PM1.80m | 4:23AM1.82m | 5:43PM1.86m | 5:06AM1.93m | 6:07PM1.91m | 5:46AM2.00m | 6:31PM1.94m | |||||||
Low Tide | 7:27PM1.39m | 8:35AM0.60m | 9:25PM1.30m | 9:39AM0.48m | 10:14PM1.17m | 10:26AM0.38m | 10:50PM1.03m | 11:05AM0.31m | 11:22PM0.88m | 11:40AM0.28m | 11:52PM0.74m | 12:12PM0.30m | 00:23AM0.62m | |||||||
 |  | |  |  | | | | | | |  | |  | |  | | | |  | |
 | — | — | 5:28 | — | — | 5:28 | — | — | 5:28 | — | — | 5:30 | — | — | 5:31 | — | — | 5:31 | — | — |
 | 6:40 | — | — | 6:39 | — | — | 6:37 | — | — | 6:37 | — | — | 6:36 | — | — | 6:35 | — | — | 6:32 | — |
mm | — | 1 | — | — | — | — | — | — | — | — | 2 | 2 | 4 | 4 | 8 | 7 | 21 | 6 | 4 | — |
Temp °C | 29 | 26 | 30 | 29 | 26 | 29 | 29 | 26 | 29 | 29 | 26 | 29 | 29 | 26 | 27 | 26 | 25 | 26 | 27 | 26 |
Feels °C | 31 | 30 | 33 | 31 | 30 | 31 | 32 | 30 | 31 | 32 | 30 | 31 | 32 | 30 | 30 | 28 | 26 | 29 | 30 | 29 |
Swell 1 Height (m) Direction Period (s) | SSW 9 | SSW 8 | SSW 8 | S 8 | SE 12 | SE 16 | SE 16 | SSE 16 | SSE 15 | SSE 15 | SSE 15 | S 14 | S 13 | S 11 | S 10 | S 10 | S 10 | S 10 | SW 12 | S 9 |
| kJ | 80 | 55 | 54 | 30 | 152 | 783 | 1899 | 4905 | 5373 | 5624 | 5684 | 4376 | 1958 | 941 | 1163 | 1109 | 1160 | 1154 | 23 | 393 |
Swell 2 Height (m) Direction Period (s) | SE 10 | ESE 10 | ESE 11 | SE 13 | SSW 9 | S 8 | S 8 | E 11 | E 15 | E 14 | E 13 | E 13 | SE 9 | E 12 | E 12 | E 11 | E 11 | E 11 | SE 15 | ESE 10 |
| kJ | 17 | 10 | 38 | 45 | 30 | 21 | 12 | 10 | 17 | 16 | 32 | 30 | 367 | 11 | 24 | 10 | 9 | 9 | 8 | 9 |
Swell 3 Height (m) Direction Period (s) | E 10 | ESE 13 | ESE 6 | ESE 11 | S 8 | SW 9 | SSW 8 | SW 10 | E 15 | — | — | — | E 13 | SE 16 | SE 16 | E 15 | E 15 | SE 14 | E 14 | SW 12 |
| kJ | 8 | 16 | 3 | 23 | 21 | 13 | 6 | 24 | 17 | — | — | — | 29 | 10 | 10 | 4 | 4 | 8 | 4 | 24 |
Wind waves Height (m) Direction Period (s) | — | SSW 2 | — | — | — | — | — | — | — | — | — | — | — | SE 9 | — | — | — | — | S 9 | — |
| kJ | — | 1 | — | — | — | — | — | — | — | — | — | — | — | 328 | — | — | — | — | 780 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 3 | 3 | 3 | 3 | 3 | 3 | 32 | 3 | 64 | 3 | 3 | 3 | 3 | 3 | 64 | 36 | 32 | 3 | 3 | 3 |
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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