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Surf Forecasts:
Katahama surfForecast / Shizuoka / Japan
16 Day Weather and Surf, issued 8 am Wednesday 27 May 2026 JSTForecast update in hr min s Forecast update imminent
Katahama surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Katahama sea temperature is
19.8° C
(Which is 2.1°C colder than average for this time of year)Best Forecast Surf Conditions for Katahama this week:
The surf forecast for Katahama over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (May 28) at 6PM. The primary swell is predicted to be 0.7m and 8s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Katahama in the next 16 days are 1.6m 13s and forecast to arrive on Monday (Jun 01) at 3AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.5m 14s period and expected on Wednesday (Jun 03) at 3PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6PM (Thu 28th May) | 2.5ft (0.7m) 8s |
| Best Surf | 6PM (Sun 31st May) | 4.5ft (1.3m) 13s |
| Most Powerful | 3AM (Mon 1st Jun) | 5ft (1.6m) 13s |
Table - best surf conditions forecast for Katahama over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 2mm), mostly falling on Wed night. Warm (max 30°C on Fri afternoon, min 20°C on Wed night). Winds increasing (light winds from the SSE on Wed afternoon, fresh winds from the W by Fri morning). | Days 4-6 Weather SummaryMostly dry. Warm (max 25°C on Mon morning, min 20°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Wednesday 27 | Thursday 28 | Friday 29 | Saturday 30 | Sunday 31 | Monday 1 | Tuesday 2 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
ESE 8 | ESE 9 | ESE 9 | E 9 | E 8 | E 8 | E 10 | E 9 | E 10 | E 6 | E 11 | E 10 | S 13 | S 13 | S 13 | E 10 | E 10 | E 10 | E 10 | E 9 | E 9 | |
109 | 123 | 123 | 145 | 116 | 69 | 65 | 64 | 68 | 112 | 85 | 78 | 173 | 492 | 746 | 48 | 54 | 52 | 49 | 28 | 27 | |
Wind (km/h) | |||||||||||||||||||||
cross-on | on | cross-on | cross | cross | cross-off | cross-off | cross-off | cross-on | cross-on | on | glassy | glassy | cross-on | glassy | cross-on | cross-on | glassy | on | cross-on | cross-off | |
High Tide | 3:27PM1.27m | 2:48AM1.49m | 4:14PM1.34m | 3:17AM1.52m | 4:54PM1.39m | 3:45AM1.55m | 5:30PM1.43m | 4:15AM1.58m | 6:05PM1.45m | 4:46AM1.60m | 6:41PM1.47m | 5:21AM1.61m | 7:19PM1.48m | ||||||||
Low Tide | 9:07AM0.46m | 8:49PM0.81m | 9:43AM0.34m | 9:33PM0.86m | 10:16AM0.24m | 10:09PM0.90m | 10:47AM0.16m | 10:41PM0.94m | 11:19AM0.10m | 11:14PM0.95m | 11:52AM0.07m | 11:50PM0.96m | 12:27PM0.07m | 00:33AM0.96m | |||||||
 |  |  | | |  |  | | | | |  | | | | | | | | | | |
 | 4:37 | — | — | 4:37 | — | — | 4:35 | — | — | 4:35 | — | — | 4:35 | — | — | 4:35 | — | — | 4:35 | — | — |
 | — | 6:51 | — | — | 6:51 | — | — | 6:52 | — | — | 6:52 | — | — | 6:52 | — | — | 6:53 | — | — | 6:54 | — |
— | — | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 23 | 22 | 21 | 21 | 22 | 22 | 29 | 30 | 23 | 24 | 24 | 22 | 24 | 24 | 23 | 25 | 25 | 22 | 23 | 22 | 21 |
24 | 24 | 22 | 21 | 24 | 20 | 24 | 25 | 22 | 23 | 23 | 24 | 23 | 22 | 23 | 25 | 23 | 24 | 23 | 22 | 23 | |
Swell 1 Height (m) Direction Period (s) | ESE 8 | ESE 9 | ESE 9 | S 6 | SSW 8 | E 8 | E 10 | E 9 | SW 7 | SW 7 | E 6 | E 10 | S 13 | S 13 | S 13 | S 14 | S 14 | S 14 | SSW 14 | SSW 14 | SSW 15 |
 kJ | 109 | 123 | 123 | 39 | 199 | 69 | 65 | 64 | 105 | 30 | 47 | 78 | 173 | 492 | 746 | 1231 | 1835 | 2005 | 2297 | 2523 | 3771 |
Swell 2 Height (m) Direction Period (s) | S 6 | ESE 14 | ESE 14 | ESE 13 | E 8 | ESE 12 | ESE 12 | ESE 13 | W 6 | E 11 | E 11 | SSE 6 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 9 | ESE 12 |
| kJ | 2 | 19 | 18 | 17 | 116 | 15 | 15 | 16 | 31 | 61 | 85 | 12 | 75 | 71 | 74 | 48 | 54 | 52 | 49 | 28 | 13 |
Swell 3 Height (m) Direction Period (s) | SE 14 | S 5 | S 5 | SE 10 | ESE 13 | S 9 | S 9 | S 9 | E 10 | SSE 7 | SW 7 | ESE 5 | SSE 6 | SSE 6 | S 17 | SE 11 | E 10 | SE 11 | SE 11 | ESE 11 | — |
| kJ | 8 | 2 | 2 | 4 | 17 | 2 | 2 | 2 | 68 | 9 | 17 | 9 | 10 | 10 | 215 | 5 | 47 | 19 | 20 | 12 | — |
Wind waves Height (m) Direction Period (s) | — | — | — | E 9 | — | SSW 7 | WSW 7 | WSW 6 | ENE 3 | E 6 | — | — | — | — | — | — | — | — | — | — | E 9 |
| kJ | — | — | — | 145 | — | 250 | 270 | 381 | 5 | 112 | — | — | — | — | — | — | — | — | — | — | 27 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 13 | 104 | 13 | 103 | 13 | 103 | 65 | 65 | 94 | 13 | 104 | 6 | 6 | 104 | 2 | 13 | 104 | 2 | 13 | 65 | 2 |
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 Katahama 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 Katahama Surf forecast
The above surf forecast table for Katahama provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Katahama can be found by selecting the local surf guide option on the grey menu. Our Katahama 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 (Katahama) 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 Katahama 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.
Katahama is 4 km (2 miles) from the city of Sagara. If you plan a holiday in Shizuoka, look for hotels and other accommodation in Sagara. Sagara has rooms for a wide range of budgets as well as car hire and transport links.
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