Surf Forecasts:
Asakawa surf forecast from 26 Jul 2026:
- Best quality surf: Sunday 2 Aug, 9PM (local time) - 3ft (0.9m), 14s period, ESE swell with glassy winds.
- Most powerful swell: Monday 3 Aug, 3AM (local time) - 3.5ft (1.0m), 14s period, ESE swell with 378 kJ wave energy.
- Next surfable swell (1★+): Monday 27 Jul, 6AM (local time) - 1.5ft (0.4m), 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 27) at 6AM. The primary swell is predicted to be 0.4m and 14s period with a secondary swell of 0.6m and 8s. Another secondary swell of 0.5m and 10s 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 1.0m 14s and forecast to arrive on Monday (Aug 03) at 3AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Monday (Jul 27) at 9AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Mon 27th Jul) | 1.5ft (0.4m) 14s |
| Best Surf | 9PM (Sun 2nd Aug) | 3ft (0.9m) 14s |
| Most Powerful | 3AM (Mon 3rd Aug) | 3.5ft (1.0m) 14s |
Table - best surf conditions forecast for Asakawa over the next 16 days.
The Lowdown
Alright, Rusty here. Let's talk about what's comin' up for our local stretch.
Alright, truth be told, we've got a bit of a slow start. The first week or so is pretty quiet, with just tiny, weak waves. You'll be lookin' at a lot of glassy mornings but not much to ride. The real action doesn't fire up until the first week of August, and even then, it's a bit of a mixed bag.
The standout window is shaping up for the morning of Tuesday, August 4th, through to the morning of Wednesday, August 5th. That's where the ocean finally wakes up.
For the experienced crew, Tuesday morning, August 4th, at Asakawa is the pick of the bunch. We've got a solid 7ft groundswell hammerin' in from the ESE with a very long 16-second period, and the combined energy is a hefty 1981 (moderate to strong). The wind is glassy, which is a massive bonus. That long period swell will wrap around the point nicely, giving you some proper, powerful lines. It's a point break, so it'll handle that energy well. This is gonna be a proper session, but it's not for the beginners – that's expert territory. Water temps are about average for this time of year.
Wednesday morning, August 5th, is also a cracker. Still a solid 6ft ESE groundswell with that same 16-second period, and the energy is still strong at 1768. The wind is a clean cross-offshore, which will keep the face of the wave nice and groomed. Another one for the experienced surfer, but it's a beauty.
The week leading up to that is a write-off, and after the 5th, the swell starts to back off and the wind turns more onshore, so the quality drops right off. The morning of Tuesday, August 11th, shows a small, clean 3ft swell comin' back, but it's nothing to write home about.
So, if you're chasing the best of the forecast, circle August 4th and 5th on your calendar. Get on it.
Rusty.
Short Range ForecastLight rain (total 9mm), mostly falling on Mon afternoon. Warm (max 32°C on Mon morning, min 27°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummarySome drizzle, heaviest during Thu afternoon. Warm (max 33°C on Fri morning, min 27°C on Wed night). Wind will be generally light. | ||||||||||||||||||
Monday 27 | Tuesday 28 | Wednesday 29 | Thursday 30 | Friday 31 | Saturday 1 | ||||||||||||||
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 14 | SE 14 | SE 14 | SE 14 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | ESE 10 | SE 10 | SE 10 | SE 10 | SE 9 | SE 13 | SE 11 | SE 10 | SE 11 | SE 11 |
Wave Graph  | |||||||||||||||||||
 kJ | 74 | 72 | 70 | 65 | 49 | 54 | 48 | 48 | 48 | 38 | 23 | 23 | 23 | 24 | 26 | 20 | 28 | 40 | 30 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | glassy | cross-on | cross-off | glassy | cross-on | off | glassy | glassy | off | glassy | on | glassy | cross | glassy | off | glassy | cross-on | off |
High Tide | 3:43AM1.52m | 5:52PM1.58m | 4:30AM1.60m | 6:20PM1.64m | 5:10AM1.68m | 6:46PM1.68m | 5:48AM1.74m | 7:11PM1.71m | 6:24AM1.77m | 7:36PM1.73m | 7:00AM1.77m | 8:00PM1.74m | |||||||
Low Tide | 10:33PM1.11m | 10:50AM0.32m | 11:10PM1.04m | 11:27AM0.23m | 11:43PM0.96m | 12:00PM0.17m | 00:13AM0.89m | 12:32PM0.15m | 00:44AM0.81m | 1:02PM0.16m | 1:15AM0.74m | 1:31PM0.21m | 1:47AM0.67m | ||||||
 |  |  | |  | |  | | | | | | | | | | | | | |
 | — | 5:09 | — | — | 5:11 | — | — | 5:11 | — | — | 5:11 | — | — | 5:13 | — | — | 5:13 | — | — |
 | 7:07 | — | 7:07 | — | — | 7:06 | — | — | 7:05 | — | — | 7:04 | — | — | 7:04 | — | — | 7:02 | — |
mm | — | — | 4 | — | — | 2 | — | 1 | 2 | — | — | 1 | — | — | — | — | — | — | — |
Temp °C | 28 | 32 | 31 | 28 | 32 | 32 | 28 | 31 | 31 | 28 | 32 | 32 | 29 | 33 | 32 | 29 | 33 | 33 | 29 |
Feels °C | 32 | 36 | 35 | 33 | 36 | 36 | 33 | 35 | 35 | 32 | 35 | 37 | 34 | 36 | 36 | 33 | 36 | 37 | 33 |
Swell 1 Height (m) Direction Period (s) | S 8 | S 8 | S 9 | S 8 | S 8 | SE 10 | SSW 6 | SSW 6 | SE 10 | SSW 5 | SE 10 | SE 10 | SE 10 | SE 9 | SE 9 | SE 10 | SE 10 | SE 11 | SE 11 |
| kJ | 50 | 49 | 55 | 51 | 36 | 49 | 33 | 19 | 48 | 16 | 23 | 23 | 23 | 23 | 21 | 14 | 28 | 40 | 30 |
Swell 2 Height (m) Direction Period (s) | SE 14 | SE 10 | SE 10 | SE 10 | SE 10 | SE 13 | SE 10 | SE 10 | SSW 8 | ESE 10 | SSW 5 | S 7 | SSW 7 | SSW 4 | SE 13 | SE 11 | SSW 4 | SSW 7 | ESE 9 |
| kJ | 74 | 51 | 50 | 50 | 49 | 28 | 48 | 48 | 21 | 38 | 4 | 10 | 10 | 4 | 26 | 20 | 2 | 4 | 7 |
Swell 3 Height (m) Direction Period (s) | SE 11 | SE 14 | SE 14 | SE 14 | SE 14 | S 8 | SSW 8 | SSW 8 | SE 13 | SE 12 | SSW 8 | SE 12 | SE 12 | SE 12 | SSW 4 | SSW 5 | S 7 | — | ESE 17 |
| kJ | 40 | 72 | 70 | 65 | 29 | 1 | 22 | 12 | 26 | 25 | 11 | 6 | 6 | 24 | 2 | 2 | 1 | — | 28 |
Wind waves Height (m) Direction Period (s) | SW 3 | NNE 3 | NNE 3 | — | SW 4 | SSW 8 | — | — | SSW 5 | — | — | SSW 6 | SW 5 | — | NNE 3 | — | — | — | — |
| kJ | 2 | 3 | 1 | — | 3 | 54 | — | — | 10 | — | — | 4 | 11 | — | 1 | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 11 | 0 | 0 | 11 | 0 | 0 | 0 | 0 | 30 | 6 | 6 | 22 | 2 | 64 | 575 | 6 | 1 |
Best forecast wave conditions in Shikoku | |||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||
Header Global | |||||||||||||||||||
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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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