Surf Forecasts:
Tainohama surf forecast from 20 Jul 2026:
- Best quality surf: Monday 27 Jul, 3AM (local time) - 3ft (0.9m), 11s period, S swell with cross-offshore winds.
- Most powerful swell: Monday 27 Jul, 6PM (local time) - 4ft (1.2m), 11s period, S swell with 338 kJ wave energy.
- Next surfable swell (1★+): Friday 24 Jul, 12AM (local time) - 1ft (0.3m), 18s period with SE 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 24) at 12AM. The primary swell is predicted to be 0.3m and 18s period with a secondary swell of 0.3m and 10s. Another secondary swell of 0.3m and 3s is also forecast. Another secondary swell of 0.5m and 4s is also forecast. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Tainohama in the next 16 days are 1.2m 11s and forecast to arrive on Monday (Jul 27) at 6PM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Fri 24th Jul) | 1ft (0.3m) 18s |
| Best Surf | 3AM (Mon 27th Jul) | 3ft (0.9m) 11s |
| Most Powerful | 6PM (Mon 27th Jul) | 4ft (1.2m) 11s |
Table - best surf conditions forecast for Tainohama over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s break down what we’ve got coming.
Water temp is about 82°F, which is pretty normal for this time of year.
The first week and a half is rough. From now until the morning of Monday, July 27th, it’s mostly flat or tiny, with poor conditions. There are a few glassy moments on the 21st, 23rd, and 24th, but the swell is only 0.7ft to 1ft from the ESE. The combined energy is weak, between 31 and 146, so barely a ripple. Wind is light, sometimes glassy, but there’s nothing to ride. A long stretch of nothing.
The first real chance comes on the morning of Monday, July 27th, at Tainohama (reef break). A clean 3ft swell from the S, period of 10 seconds, glassy conditions. Energy jumps to 332 (moderate), and it’s saying expect good surf. This is your first real shot.
But the best of the bunch is the morning of Tuesday, July 28th. Swell pushes to 5ft from the SSW, with a 12-second period – that’s proper groundswell. Energy is strong at 747, and it’s glassy. Expect very good surf conditions. This reef will handle that long period nicely. The morning of Wednesday, July 29th is a carbon copy – 5ft SSW, 12 seconds, glassy, energy at 759. Also a standout.
Thursday the 30th is clean in the morning with 5ft SSW, but the period drops to 11 seconds. Still good, but not as refined.
Then, the morning of Saturday, August 1st – 5ft SSW, 9-second period, glassy, energy at 663. Expect very good surf again. It’s a solid weekend option, though the shorter period will make it a bit more jumbled.
After that, it fades. Sunday the 2nd has 4ft SW with a weak 6-second period, energy down to 166, and by Monday the 3rd, we’re back to tiny, poor conditions.
So, for the best: Tuesday morning, July 28th and Wednesday morning, July 29th at Tainohama. Both are 5ft SSW groundswell, glassy, with strong energy. That’s the pick. The Saturday morning on August 1st is also worth a look, but the shorter period means less shape.
This is a reef break, so it’s for advanced surfers only. Crowds are possible sometimes. The SSW direction is right on the money for this spot.
Rusty.
Short Range ForecastLight rain (total 4mm), mostly falling on Tue afternoon. Warm (max 31°C on Tue afternoon, min 27°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryModerate rain (total 13mm), heaviest on Thu afternoon. Warm (max 32°C on Sat morning, min 26°C on Fri night). Wind will be generally light. | |||||||||||||||||||
Mon 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | ||||||||||||||
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) | ESE 11 | ESE 11 | SW 8 | ESE 11 | ESE 11 | ESE 11 | ESE 10 | ESE 11 | SE 10 | SE 10 | SE 18 | SE 18 | SE 18 | SE 16 | SE 16 | SE 16 | SE 16 | SE 15 | SE 15 | S 10 |
Wave Graph  | ||||||||||||||||||||
 kJ | 12 | 12 | 11 | 23 | 22 | 22 | 11 | 11 | 25 | 25 | 50 | 49 | 49 | 42 | 91 | 90 | 86 | 78 | 76 | 167 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | glassy | glassy | cross-on | glassy | cross | cross-on | glassy | glassy | cross-on | off | glassy | cross-on | off | cross-off | glassy | cross-off | cross | on | cross |
High Tide | 9:39PM1.74m | 10:05AM1.55m | 10:15PM1.70m | 11:22AM1.44m | 10:58PM1.65m | 1:13PM1.39m | 11:56PM1.62m | 3:12PM1.46m | 1:11AM1.61m | 4:22PM1.58m | 2:27AM1.65m | 5:07PM1.69m | ||||||||
Low Tide | 3:18PM0.67m | 4:00AM0.73m | 3:56PM0.85m | 5:00AM0.72m | 4:43PM1.03m | 6:15AM0.69m | 5:52PM1.19m | 7:39AM0.62m | 7:41PM1.28m | 8:53AM0.50m | 9:16PM1.27m | 9:51AM0.38m | 10:17PM1.21m | |||||||
 |  |  |  | |  | | | | | | | | | | | | | |  | |
 | — | — | 5:05 | — | — | 5:05 | — | — | 5:05 | — | — | 5:07 | — | — | 5:07 | — | — | 5:07 | — | — |
 | 7:10 | — | — | 7:09 | — | — | 7:08 | — | — | 7:08 | — | — | 7:07 | — | — | 7:07 | — | — | 7:07 | — |
mm | — | — | — | 1 | — | 1 | 2 | — | — | 4 | — | 1 | 4 | — | — | 3 | — | 1 | 4 | 1 |
Temp °C | 30 | 28 | 30 | 31 | 28 | 30 | 31 | 28 | 31 | 31 | 28 | 31 | 30 | 28 | 32 | 31 | 28 | 30 | 30 | 28 |
Feels °C | 34 | 34 | 35 | 35 | 33 | 35 | 36 | 33 | 36 | 35 | 33 | 36 | 35 | 33 | 36 | 36 | 32 | 34 | 34 | 32 |
Swell 1 Height (m) Direction Period (s) | ESE 7 | ESE 7 | ESE 11 | ESE 11 | ESE 11 | ESE 11 | ESE 10 | ESE 11 | SE 10 | SE 10 | SE 10 | SE 9 | SE 9 | SE 11 | SE 11 | SE 10 | SE 10 | SE 10 | S 10 | S 10 |
| kJ | 10 | 9 | 11 | 23 | 22 | 22 | 11 | 11 | 25 | 25 | 16 | 23 | 14 | 41 | 40 | 49 | 48 | 50 | 72 | 167 |
Swell 2 Height (m) Direction Period (s) | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSW 4 | SE 19 | SW 3 | SE 18 | SE 18 | SE 16 | SE 16 | SE 16 | SE 16 | SE 15 | SE 11 | SE 11 |
| kJ | 7 | 7 | 7 | 6 | 6 | 6 | 6 | 6 | 1 | 15 | 2 | 49 | 49 | 42 | 91 | 90 | 86 | 78 | 55 | 55 |
Swell 3 Height (m) Direction Period (s) | ESE 11 | ESE 11 | ESE 6 | ESE 6 | SE 6 | SSW 3 | S 7 | SE 11 | SE 20 | S 8 | SE 18 | SSW 4 | SE 12 | S 7 | SSW 8 | S 8 | S 8 | S 10 | SE 15 | SE 14 |
| kJ | 12 | 12 | 4 | 4 | 1 | 1 | 1 | 4 | 15 | 5 | 50 | 1 | 21 | 4 | 6 | 5 | 10 | 16 | 76 | 74 |
Wind waves Height (m) Direction Period (s) | S 3 | SW 3 | SW 8 | SW 2 | SW 3 | SW 3 | SSW 3 | SW 3 | — | SSW 4 | SW 4 | — | SSW 4 | SSW 4 | — | SW 6 | SSW 7 | SW 3 | SW 3 | SW 3 |
| kJ | 5 | 3 | 9 | 1 | 1 | 2 | 1 | 2 | — | 2 | 7 | — | 1 | 1 | — | 2 | 11 | 3 | 2 | 4 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 495 | 51 | 51 | 975 | 51 | 51 | 562 | 260 | 27 | 374 | 0 | 0 | 32 | 0 | 0 | 0 | 0 | 19 | 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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