Surf Forecasts:
Asakawa surf forecast from 5 Jul 2026:
- Best quality surf: Friday 10 Jul, 3AM (local time) - 11ft (3.5m), 16s period, S swell with glassy winds.
- Most powerful swell: Saturday 11 Jul, 12AM (local time) - 13ft (4.0m), 18s period, S swell with 10,310 kJ wave energy.
- Next surfable swell (1★+): Monday 6 Jul, 6PM (local time) - 3.5ft (1.0m), 14s period with SE swell.
Best Forecast Surf Conditions for Asakawa this week:
The surf forecast for Asakawa over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Jul 06) at 6PM. The primary swell is predicted to be 1.0m and 14s period with a secondary swell of 0.8m and 6s. Another secondary swell of 1.1m and 6s is also forecast. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Asakawa in the next 16 days are 4.0m 18s and forecast to arrive on Saturday (Jul 11) at 12AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 3s period and expected on Tuesday (Jul 07) at 3AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6PM (Mon 6th Jul) | 3.5ft (1.0m) 14s |
| Best Surf | 3AM (Fri 10th Jul) | 11ft (3.5m) 16s |
| Most Powerful | 12AM (Sat 11th Jul) | 13ft (4.0m) 18s |
Table - best surf conditions forecast for Asakawa over the next 16 days.
Updates in hr min s Forecast update imminent
Alright, let me break this down for you. We're looking at Asakawa, a point break that's inconsistent and only really lights up when the swell direction lines up from the SE. The water's sitting at a notable 76° – that's a bit colder than usual for this time of year, so you might want a slightly thicker suit.
The next several days are pretty bleak. Sunday the 5th kicks off with some knee-high waves around 3ft from the SSW, but it's glassy in the morning – that's the only good bit. The energy is weak at just 74, and it's inconsistent. After that, we've got a real flat spell. Monday the 6th through Wednesday the 9th is mostly junk: tiny swell, cross-onshore winds, and choppy conditions. You're better off staying home. This is a long gap with nothing worth paddling out for.
Now, the real story starts building from Thursday the 10th. We get a massive pulse of swell – 13ft from the S on Friday morning and afternoon. That's pumping. The combined energy is huge (10206 and 14613). But hold up: this is a point break, and with 13ft swell, it's only going to be for experts. Beginners, stay well clear. The wind is light cross-onshore Friday morning, which isn't perfect, but it's manageable. For me, the standout window is Saturday the 11th. We've got 13ft from the SSW in the morning with glassy conditions – absolute perfection for experienced surfers looking for a challenge. The period is a very long 17 seconds, meaning groundswell with plenty of power and long lulls between sets. The energy is through the roof at 8314. Saturday afternoon stays glassy but drops to 12ft – still epic.
Sunday the 12th morning is still solid with 7ft from SSW and glassy conditions (energy 1841), but the consistency is still a question since this break rarely fires. After that, things taper off quickly through the second week. There's a little bump on Monday the 20th morning with 4ft from SE and glassy conditions – worth a look if you're keen, but nothing like that mid-July swell.
Overall, the best on offer is Saturday the 11th, hands down. Glassy, powerful, and for the brave. Sunday morning also worth a look. Don't bother before the 10th.
- Rusty
Short Range ForecastModerate rain (total 17mm), heaviest on Sun afternoon. Warm (max 28°C on Mon morning, min 24°C on Sun afternoon). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 27°C on Fri morning, min 22°C on Thu night). Wind will be generally light. | ||||||||||||||||||||
Sunday 5 | Monday 6 | Tuesday 7 | Wednesday 8 | Thursday 9 | Friday 10 | Saturday 11 | |||||||||||||||
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) | SSW 7 | SE 9 | SSW 6 | SE 15 | SE 14 | SE 13 | SE 15 | SE 16 | SE 15 | SE 16 | SSE 17 | SSE 16 | SSE 16 | SSE 15 | SSE 16 | S 17 | S 17 | S 18 | SSW 17 | SSW 17 | SSW 16 |
Wave Graph  | |||||||||||||||||||||
 kJ | 50 | 31 | 14 | 149 | 301 | 347 | 353 | 620 | 1471 | 1880 | 4173 | 4136 | 4883 | 3161 | 4318 | 8399 | 9644 | 10310 | 8314 | 7420 | 4181 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-on | glassy | cross-on | cross | off | cross | on | on | on | on | glassy | on | on | glassy | cross-on | on | glassy | glassy | glassy | cross |
High Tide | 9:43PM1.63m | 9:16AM1.51m | 10:17PM1.62m | 10:17AM1.42m | 10:55PM1.60m | 11:38AM1.36m | 11:41PM1.58m | 1:20PM1.35m | 00:36AM1.58m | 3:00PM1.43m | 1:41AM1.60m | 4:18PM1.55m | 2:47AM1.65m | ||||||||
Low Tide | 3:02PM0.38m | 3:36AM0.81m | 3:39PM0.51m | 4:28AM0.75m | 4:23PM0.66m | 5:30AM0.68m | 5:17PM0.83m | 6:40AM0.57m | 6:30PM0.98m | 7:54AM0.44m | 8:00PM1.08m | 9:03AM0.28m | 9:23PM1.10m | ||||||||
 |  |  |  |  |  |  |  | | | | |  | | | | | |  | | | |
 | 4:56 | — | — | 4:56 | — | — | 4:58 | — | — | 4:58 | — | — | 4:58 | — | — | 4:58 | — | — | 5:00 | — | — |
 | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — |
mm | 1 | 12 | — | — | 3 | — | — | 1 | — | — | — | — | — | — | — | — | — | — | 8 | 23 | — |
Temp °C | 25 | 24 | 24 | 28 | 27 | 25 | 26 | 25 | 24 | 25 | 26 | 24 | 26 | 26 | 24 | 27 | 27 | 24 | 27 | 24 | 24 |
Feels °C | 30 | 28 | 29 | 31 | 32 | 29 | 30 | 29 | 28 | 28 | 29 | 28 | 27 | 28 | 27 | 29 | 30 | 29 | 32 | 29 | 28 |
Swell 1 Height (m) Direction Period (s) | SSW 7 | SSW 6 | SSW 6 | SE 15 | SE 14 | SE 13 | SE 12 | SE 16 | SE 15 | SE 16 | SSE 17 | SSE 16 | SSE 16 | SSE 15 | SSE 16 | S 17 | S 17 | S 18 | SSW 17 | SSW 17 | SSW 16 |
| kJ | 50 | 31 | 14 | 149 | 301 | 347 | 353 | 620 | 1471 | 1880 | 4173 | 4136 | 4883 | 3161 | 4318 | 8399 | 9644 | 10310 | 8314 | 7420 | 4181 |
Swell 2 Height (m) Direction Period (s) | SE 10 | SE 9 | ESE 4 | S 6 | E 8 | SSW 6 | SE 15 | ESE 12 | SSE 21 | SSE 18 | SSE 21 | E 8 | S 18 | S 18 | S 18 | SSW 21 | SSW 18 | — | — | — | SE 12 |
| kJ | 17 | 20 | 3 | 16 | 19 | 34 | 335 | 359 | 562 | 1574 | 599 | 50 | 1504 | 2015 | 1904 | 1807 | 4969 | — | — | — | 23 |
Swell 3 Height (m) Direction Period (s) | ESE 9 | S 8 | ESE 8 | ESE 10 | S 9 | SE 18 | SSW 6 | SW 6 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 7 | 1 | 7 | 41 | 2 | 79 | 16 | 9 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | ESE 4 | — | SE 4 | SSW 6 | — | E 6 | E 7 | E 8 | E 7 | E 8 | E 8 | E 8 | E 8 | ESE 8 | — | — | — | — | — | — |
| kJ | — | 2 | — | 9 | 47 | — | 55 | 124 | 153 | 88 | 130 | 140 | 136 | 133 | 107 | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 14 | 30 | 11 | 2 | 0 | 22 | 19 | 19 | 11 | 11 | 0 | 19 | 19 | 0 | 43 | 444 | 0 | 0 | 0 | 2 |
Best forecast wave conditions in Shikoku | |||||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||||
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Information about the Asakawa Surf forecast
The above surf forecast table for Asakawa provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Asakawa can be found by selecting the local surf guide option on the grey menu. Our Asakawa 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 (Asakawa) 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 Asakawa 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.
Are you planning a holiday in Shikoku? If you are looking for accommodation near Asakawa, camping, hotels and holiday cottages in Shikoku, consider staying in Anan which is 41 km (25 miles) away. Other places in and around Shikoku where you can find information about places to rent, and car hire include Muroto which is 44 km (27 miles) away, Komatsushima, Aki and Kamojima.
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