
Surf Forecasts:
Tainohama surf forecast from 1 Aug 2026:
- Best quality surf: Wednesday 5 Aug, 6PM (local time) - 18ft (5.5m), 17s period, SE swell with glassy winds.
- Most powerful swell: Thursday 6 Aug, 9AM (local time) - 20ft (6.0m), 17s period, SE swell with 20,962 kJ wave energy.
- Next surfable swell (1★+): Saturday 1 Aug, 9PM (local time) - 1.5ft (0.4m), 11s 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 Saturday (Aug 01) at 9PM. The primary swell is predicted to be 0.2m and 18s period with a secondary swell of 0.4m and 11s. Another secondary swell of 0.4m and 5s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Tainohama in the next 16 days are 6.0m 17s and forecast to arrive on Thursday (Aug 06) at 9AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 4s period and expected on Sunday (Aug 02) at 3PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Sat 1st Aug) | 1.5ft (0.4m) 11s |
| Best Surf | 6PM (Wed 5th Aug) | 18ft (5.5m) 17s |
| Most Powerful | 9AM (Thu 6th Aug) | 20ft (6.0m) 17s |
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’s on the cards for Tainohama.
It’s a bit of a slow start, but there’s a big pulse of swell heading our way. This is a classic reef setup for advanced surfers only, and it’s exposed to the south. The water is sitting at 83.5°F which is a touch warmer than normal for this time of year.
Right now, we’re looking at a quiet spell. Saturday the 1st through to Monday the 3rd of August is a write-off for any proper surf. Small 1.3ft to 1.6ft waves with poor conditions, and the energy is weak (33 to 58). We’ve got to wait a bit.
The first hint of something comes on Monday the 3rd morning with 4.6ft from the ESE, but the wind is cross and it’s only marginal. By Monday afternoon, the swell bumps to 5.2ft (ESE) but the wind swings onshore and the energy is building fast (1522). Not the one.
Tuesday the 4th kicks up to a solid 9.8ft from the ESE, but that’s more than 5ft so beginners will want to sit this one out. The wind is onshore all day, so it’s messy. Energy is jumping to 4982 then 7112.
Now, here’s the standout. Wednesday the 5th of August. Morning sees 14.8ft from the SE with a light cross breeze, but the real magic is Wednesday afternoon. We’ve got 16.4ft SE swell, 17-second period, and glassy conditions. That’s the cleanest window of the whole run. The energy is massive at 14763. This is an expert-only zone, and with that long period groundswell hitting a reef, it’s going to be thick and powerful. You’ll want to be on your A-game. The crowds are sometimes an issue here, so get in early.
Thursday the 6th is for the absolute top-end crew only. We’re talking 21.3ft SE swell with 17-18 second intervals, but the energy is through the roof (25845). The wind stays favourable in the morning with a cross-off breeze, but it’s simply too big for most. Even the experts need to pick their moment.
Friday the 7th of August stays big, with 19.7ft dropping to 18ft, but the wind is messy and onshore in the afternoon, and the swell direction turns a little more SSE. It’s one for the big wave chargers only, if they can handle the chop.
From Saturday the 8th onwards, the swell drops quickly, but the wind stays poor. We’ve got cross and cross-on winds, rain and thunderstorms, and the quality just isn’t there. Sunday the 9th has 8.2ft SSW but the conditions are choppy. The rest of the week is a slow fade.
There is a tiny glimmer on Friday the 14th of August morning – 2.6ft from the SSW with a light cross-off breeze, and the energy is low (221). It’s a session for the longboard or a foiler, but it’s clean. After that, it’s back to onshore winds and small slop.
Verdict: The one to circle is Wednesday 5th of August afternoon. That’s a serious swell, glassy, and lined up on the reef. Get it while it’s clean, because after that, it’s either too big, too windy, or too small.
Short Range ForecastLight rain (total 5mm), mostly falling on Mon morning. Warm (max 34°C on Sun afternoon, min 26°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 8mm), mostly falling on Thu night. Warm (max 31°C on Thu morning, min 26°C on Tue night). Wind will be generally light. | |||||||||||||||||||
Sat 1 | Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | ||||||||||||||
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 11 | SE 16 | ESE 18 | ESE 16 | ESE 15 | ESE 16 | ESE 16 | ESE 17 | ESE 17 | ESE 17 | ESE 17 | SE 17 | SE 17 | SE 17 | SE 17 | SSE 16 | SSE 16 | SSE 16 | SSE 16 | S 16 |
Wave Graph | ||||||||||||||||||||
29 | 64 | 174 | 671 | 621 | 1223 | 1327 | 2494 | 4831 | 6156 | 9317 | 11588 | 14693 | 18397 | 20962 | 18557 | 16002 | 14375 | 12829 | 10401 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | off | cross-off | cross-off | off | cross-off | cross-on | on | on | on | on | cross | on | glassy | cross-off | cross-on | cross | cross | cross-on | cross |
High Tide | 8:02PM1.88m | 7:52AM1.88m | 8:29PM1.85m | 8:35AM1.79m | 8:56PM1.82m | 9:22AM1.66m | 9:26PM1.77m | 10:22AM1.52m | 10:01PM1.71m | 11:52AM1.41m | 10:46PM1.65m | 2:17PM1.41m | 11:57PM1.59m | |||||||
Low Tide | 1:55AM0.70m | 2:11PM0.47m | 2:32AM0.66m | 2:42PM0.63m | 3:14AM0.65m | 3:15PM0.81m | 4:03AM0.67m | 3:50PM1.00m | 5:07AM0.69m | 4:36PM1.17m | 6:32AM0.68m | 6:10PM1.32m | ||||||||
— | — | 5:13 | — | — | 5:13 | — | — | 5:15 | — | — | 5:15 | — | — | 5:16 | — | — | 5:16 | — | — | |
7:01 | — | — | 7:01 | — | — | 7:00 | — | — | 7:00 | — | — | 6:59 | — | — | 6:58 | — | — | 6:57 | — | |
mm | — | — | — | — | — | 2 | 2 | 1 | — | — | — | — | — | — | — | — | 4 | 4 | 10 | 8 |
Temp °C | 31 | 29 | 33 | 34 | 30 | 30 | 30 | 27 | 29 | 29 | 27 | 30 | 30 | 27 | 31 | 31 | 28 | 29 | 28 | 26 |
Feels °C | 34 | 33 | 34 | 34 | 33 | 34 | 35 | 30 | 32 | 31 | 31 | 33 | 33 | 31 | 33 | 32 | 31 | 31 | 29 | 29 |
Swell 1 Height (m) Direction Period (s) | SE 11 | SE 16 | ESE 18 | ESE 16 | ESE 15 | ESE 16 | ESE 16 | ESE 17 | ESE 17 | ESE 17 | ESE 17 | SE 17 | SE 17 | SE 17 | SE 17 | SSE 16 | SSE 16 | SSE 16 | SSE 16 | S 16 |
29 | 64 | 174 | 671 | 621 | 1223 | 1327 | 2494 | 4831 | 6156 | 9317 | 11588 | 14693 | 18397 | 20962 | 18557 | 16002 | 14375 | 12829 | 10401 | |
Swell 2 Height (m) Direction Period (s) | S 4 | SE 11 | ESE 14 | S 7 | SE 10 | SSE 10 | S 8 | — | — | — | — | — | — | — | — | — | — | — | — | — |
1 | 18 | 120 | 4 | 15 | 9 | 5 | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Swell 3 Height (m) Direction Period (s) | ESE 17 | ESE 19 | SE 9 | SSW 8 | SSW 8 | S 8 | S 8 | — | — | — | — | — | — | — | — | — | — | — | — | — |
28 | 35 | 41 | 7 | 6 | 5 | 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | — | NE 4 | NNE 4 | — | E 5 | ESE 7 | ESE 7 | E 8 | E 8 | — | — | — | — | — | — | — | — | — | — |
— | — | 2 | 8 | — | 35 | 162 | 227 | 496 | 675 | — | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 414 | 413 | 0 | 18 | 19 | 0 | 19 | 348 | 3 | 3 | 438 | 3 | 64 | 0 | 3 | 464 | 464 | 464 | 489 | 438 |
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.











