Surf Forecasts:
Usami surf forecast from 17 Sep 2026:
- Best quality surf: Monday 21 Sep, 12PM (local time) - 5ft (1.5m), 10s period, E swell with glassy winds.
- Most powerful swell: Saturday 19 Sep, 6AM (local time) - 6ft (1.8m), 13s period, SE swell with 1,120 kJ wave energy.
- Next surfable swell (1★+): Monday 21 Sep, 12PM (local time) - 5ft (1.5m), 10s period with E swell.
Best Forecast Surf Conditions for Usami this week:
The surf forecast for Usami over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Sep 21) at 12PM. The primary swell is predicted to be 1.5m and 10s period. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Usami in the next 16 days are 1.8m 13s and forecast to arrive on Saturday (Sep 19) at 6AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 4.0m 13s period and expected on Sunday (Sep 20) at 9PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12PM (Mon 21st Sep) | 5ft (1.5m) 10s |
| Best Surf | 12PM (Mon 21st Sep) | 5ft (1.5m) 10s |
| Most Powerful | 6AM (Sat 19th Sep) | 6ft (1.8m) 13s |
Table - best surf conditions forecast for Usami over the next 16 days.
Short Range ForecastHeavy rain (total 88mm), heaviest during Sun afternoon. Warm (max 24°C on Sat morning, min 20°C on Thu night). Mainly fresh winds. | Days 5-7 Weather SummaryHeavy rain (total 88mm), heaviest during Sun night. Warm (max 30°C on Mon morning, min 20°C on Wed morning). Winds decreasing (fresh winds from the NNE on Sun night, calm by Mon morning). | ||||||||||||||||||
Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | Tuesday 22 | Wednesday 23 | ||||||||||||||
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 9 | E 9 | SE 8 | SE 14 | ENE 8 | SE 13 | SE 12 | SE 12 | SE 12 | SE 13 | SE 12 | SE 11 | SE 9 | E 4 | SE 8 | SE 7 | SE 7 | ESE 7 | ESE 6 |
Wave Graph  | |||||||||||||||||||
 kJ | 15 | 15 | 11 | 471 | 55 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 44 | 47 | 50 | 25 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | on | cross-off | off | cross-off | off | cross-off | cross-off | cross-off | cross-off |
High Tide | 9:33AM1.23m | 7:37PM1.45m | 11:35AM1.17m | 8:02PM1.38m | 8:34PM1.28m | 3:18PM1.32m | 11:49PM1.20m | 3:34PM1.38m | 1:53AM1.26m | 3:54PM1.43m | 3:00AM1.37m | ||||||||
Low Tide | 2:29AM0.36m | 1:51PM1.05m | 3:25AM0.43m | 2:01PM1.15m | 4:46AM0.49m | 6:32AM0.51m | 8:38PM1.16m | 7:56AM0.47m | 9:08PM1.02m | 8:53AM0.43m | 9:36PM0.87m | ||||||||
 |  | | | | |  |  | |  | |  |  | |  | |  | | | |
 | — | 5:26 | — | — | 5:28 | — | — | 5:28 | — | — | 5:30 | — | — | 5:30 | — | — | 5:31 | — | — |
 | — | — | 5:46 | — | — | 5:45 | — | — | 5:44 | — | — | 5:43 | — | — | 5:42 | — | — | 5:39 | — |
mm | — | — | — | — | — | — | 5 | 30 | 53 | 85 | — | — | — | — | — | 1 | 2 | — | 1 |
Temp °C | 21 | 23 | 23 | 22 | 24 | 24 | 24 | 22 | 23 | 25 | 30 | 30 | 26 | 24 | 24 | 22 | 21 | 22 | 21 |
Feels °C | 18 | 19 | 19 | 21 | 23 | 23 | 23 | 21 | 23 | 27 | 34 | 34 | 30 | 24 | 25 | 23 | 22 | 23 | 22 |
Swell 1 Height (m) Direction Period (s) | ESE 9 | E 9 | SE 8 | SE 14 | SE 16 | SE 13 | SE 12 | SE 12 | SE 12 | SE 13 | SE 12 | SE 11 | SE 9 | SE 8 | SE 8 | SE 7 | SE 7 | SSE 9 | ESE 6 |
| kJ | 15 | 15 | 11 | 471 | 4164 | 2975 | 2221 | 2877 | 3527 | 5603 | 2580 | 617 | 147 | 57 | 53 | 44 | 47 | 8 | 25 |
Swell 2 Height (m) Direction Period (s) | SE 8 | SE 8 | E 9 | E 9 | ENE 8 | — | — | — | — | — | N 4 | SW 7 | S 9 | E 4 | S 8 | SE 9 | SE 9 | S 8 | SSE 8 |
| kJ | 9 | 11 | 7 | 43 | 55 | — | — | — | — | — | 10 | 2 | 2 | 1 | 1 | 3 | 3 | 1 | 7 |
Swell 3 Height (m) Direction Period (s) | SE 9 | SE 8 | SSE 11 | S 22 | — | — | — | — | — | — | NNE 5 | SW 7 | S 9 | S 9 | NNE 3 | S 8 | S 9 | E 10 | S 8 |
| kJ | 3 | 3 | 13 | 9 | — | — | — | — | — | — | 9 | 12 | 2 | 2 | 2 | 1 | 1 | 2 | 1 |
Wind waves Height (m) Direction Period (s) | NE 4 | NNE 5 | NNE 5 | NNE 5 | NNE 5 | NE 4 | NE 4 | NNE 5 | NNE 6 | N 5 | — | — | E 3 | NE 3 | NE 3 | — | NE 3 | ESE 7 | NE 3 |
| kJ | 49 | 66 | 80 | 50 | 44 | 21 | 15 | 61 | 155 | 134 | — | — | 5 | 6 | 1 | — | 3 | 50 | 1 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 419 | 419 | 440 | 178 | 454 | 459 | 438 | 501 | 458 | 454 | 27 | 83 | 27 | 70 | 178 | 70 | 70 | 70 | 92 |
Best forecast wave conditions in Shizuoka | |||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||
Header Global | |||||||||||||||||||
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FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Usami 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 Usami Surf forecast
The above surf forecast table for Usami provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Usami can be found by selecting the local surf guide option on the grey menu. Our Usami 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 (Usami) 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 Usami 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.
Usami is 4 km (2 miles) from Ito. If you plan a holiday in Shizuoka, look for hotels and other accommodation in Ito. Ito has rooms for a wide range of budgets as well as car hire and transport links.
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