Surf Forecasts:
Asakawa surf forecast from 23 Jun 2026:
- Best quality surf: Saturday 27 Jun, 9PM (local time) - 16ft (5.0m), 15s period, SSW swell with cross-offshore winds.
- Most powerful swell: Saturday 27 Jun, 9PM (local time) - 16ft (5.0m), 15s period, SSW swell with 11,090 kJ wave energy.
- Next surfable swell (1★+): Wednesday 24 Jun, 3AM (local time) - 2ft (0.6m), 12s 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 Wednesday (Jun 24) at 3AM. The primary swell is predicted to be 0.6m and 12s period with a secondary swell of 0.4m and 12s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Asakawa in the next 16 days are 5.0m 15s and forecast to arrive on Saturday (Jun 27) at 9PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.5m 7s period and expected on Saturday (Jun 27) at 9PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Wed 24th Jun) | 2ft (0.6m) 12s |
| Best Surf | 9PM (Sat 27th Jun) | 16ft (5.0m) 15s |
| Most Powerful | 9PM (Sat 27th Jun) | 16ft (5.0m) 15s |
Table - best surf conditions forecast for Asakawa over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 211mm), heaviest during Wed night. Warm (max 25°C on Thu night, min 19°C on Tue night). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 95mm), heaviest during Sat afternoon. Warm (max 27°C on Mon morning, min 21°C on Fri night). Winds decreasing (fresh winds from the N on Sat afternoon, calm by Sun afternoon). | ||||||||||||||||||||
Wednesday 24 | Thursday 25 | Friday 26 | Saturday 27 | Sunday 28 | Monday 29 | Tue 30 | |||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | SE 12 | SE 12 | SE 12 | S 6 | SSW 8 | SSW 13 | SSW 14 | SSW 14 | SSW 14 | SW 14 | SSW 13 | SSW 14 | SSW 13 | SSW 10 | SSW 10 | SSW 9 | SSW 8 | SSW 8 | SE 9 | SE 9 | SE 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 89 | 89 | 87 | 197 | 986 | 414 | 538 | 691 | 493 | 437 | 530 | 538 | 3506 | 566 | 282 | 136 | 68 | 47 | 101 | 85 | 68 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | glassy | glassy | cross-on | cross-on | cross | cross | glassy | cross-off | cross-off | cross-off | off | glassy | cross-off | cross | glassy | cross-off | cross-on | glassy | on | cross-on |
High Tide | 00:53AM1.53m | 2:33PM1.31m | 1:40AM1.52m | 3:47PM1.38m | 2:27AM1.53m | 4:41PM1.46m | 3:12AM1.55m | 5:23PM1.53m | 3:56AM1.58m | 6:00PM1.59m | 4:37AM1.62m | 6:35PM1.62m | 5:16AM1.66m | ||||||||
Low Tide | 7:57AM0.63m | 7:37PM1.00m | 8:52AM0.53m | 8:47PM1.06m | 9:39AM0.44m | 9:46PM1.07m | 10:21AM0.35m | 10:35PM1.06m | 11:00AM0.27m | 11:16PM1.04m | 11:37AM0.21m | 11:52PM1.01m | 12:13PM0.18m | ||||||||
 |  |  |  | |  |  | | |  | | |  |  |  |  |  | | | |  | |
 | — | 4:52 | — | — | 4:52 | — | — | 4:52 | — | — | 4:54 | — | — | 4:54 | — | — | 4:54 | — | — | 4:54 | — |
 | 7:15 | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 |
mm | 1 | 6 | 17 | 125 | 23 | 4 | 4 | 8 | 23 | 6 | 42 | 46 | — | — | 1 | — | — | — | — | 1 | 1 |
Temp °C | 20 | 19 | 21 | 24 | 24 | 24 | 25 | 24 | 21 | 22 | 22 | 24 | 23 | 26 | 26 | 24 | 27 | 27 | 23 | 24 | 24 |
Feels °C | 22 | 22 | 24 | 25 | 24 | 26 | 27 | 29 | 23 | 24 | 23 | 27 | 26 | 28 | 28 | 27 | 28 | 28 | 26 | 27 | 27 |
Swell 1 Height (m) Direction Period (s) | SE 12 | SE 12 | S 10 | SSW 15 | SE 11 | SSW 7 | SSW 14 | SSW 14 | SSW 14 | SW 14 | SSW 13 | SSW 14 | SSW 13 | SSW 10 | SSW 10 | SSE 8 | SSW 8 | SSW 8 | SE 9 | SE 9 | SE 8 |
| kJ | 89 | 89 | 69 | 150 | 71 | 158 | 538 | 691 | 493 | 437 | 530 | 538 | 3506 | 566 | 282 | 136 | 68 | 47 | 101 | 85 | 68 |
Swell 2 Height (m) Direction Period (s) | S 12 | S 11 | SE 12 | SE 11 | E 19 | SSW 13 | SE 10 | S 6 | S 6 | SSE 6 | SE 10 | SE 6 | SE 10 | SSE 9 | SSE 9 | SSW 9 | SE 7 | SSE 7 | SSW 7 | SSW 7 | SSW 7 |
| kJ | 25 | 58 | 87 | 75 | 7 | 414 | 36 | 75 | 48 | 29 | 36 | 47 | 1283 | 295 | 207 | 113 | 54 | 32 | 21 | 27 | 18 |
Swell 3 Height (m) Direction Period (s) | SSE 9 | SW 16 | SSW 14 | SSW 13 | E 19 | SSE 7 | E 19 | SE 10 | SE 10 | SE 10 | SE 18 | SE 10 | NE 6 | ESE 16 | ESE 16 | ESE 15 | SE 10 | SE 10 | ESE 15 | ESE 14 | SE 10 |
| kJ | 7 | 10 | 80 | 90 | 7 | 111 | 7 | 50 | 36 | 36 | 12 | 76 | 33 | 25 | 25 | 22 | 34 | 33 | 21 | 20 | 25 |
Wind waves Height (m) Direction Period (s) | — | — | ESE 2 | S 6 | SSW 8 | SSW 7 | SSW 7 | E 10 | NE 4 | NE 3 | NE 3 | NNE 4 | — | — | — | — | N 3 | ENE 2 | — | E 4 | — |
| kJ | — | — | 1 | 197 | 986 | 383 | 268 | 72 | 24 | 5 | 5 | 22 | — | — | — | — | 2 | 1 | — | 5 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 11 | 596 | 2 | 2 | 0 | 0 | 0 | 24 | 245 | 0 | 0 | 22 | 0 | 0 | 41 | 0 | 14 | 11 |
Best forecast wave conditions in Shikoku | |||||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Asakawa surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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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