Surf Forecasts:
Kisami-Ohama Beach surf forecast from 25 Aug 2026:
- Best quality surf: Wednesday 26 Aug, 12AM (local time) - 5.5ft (1.7m), 13s period, S swell with offshore winds.
- Most powerful swell: Wednesday 2 Sep, 3AM (local time) - 8ft (2.5m), 13s period, SSW swell with 2,303 kJ wave energy.
- Next surfable swell (1★+): Wednesday 26 Aug, 12AM (local time) - 5.5ft (1.7m), 13s period with S swell.
Best Forecast Surf Conditions for Kisami-Ohama Beach this week:
The surf forecast for Kisami-Ohama Beach over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Aug 26) at 12AM. The primary swell is predicted to be 1.7m and 13s period with a secondary swell of 0.7m and 13s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Kisami-Ohama Beach in the next 16 days are 2.5m 13s and forecast to arrive on Wednesday (Sep 02) at 3AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 6s period and expected on Friday (Aug 28) at 6AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Wed 26th Aug) | 5.5ft (1.7m) 13s |
| Best Surf | 12AM (Wed 26th Aug) | 5.5ft (1.7m) 13s |
| Most Powerful | 3AM (Wed 2nd Sep) | 8ft (2.5m) 13s |
Table - best surf conditions forecast for Kisami-Ohama Beach over the next 16 days.
The Lowdown
Alright, Rusty here. Let's talk about what's coming up for Kisami-Ohama Beach.
Right now, things are looking a bit bleak. There's a long stretch of poor to marginal conditions ahead. Honestly, it's a tough start to the outlook. The first real chance of anything worth paddling out for is on Thursday the 27th of August into the afternoon. That afternoon window is the standout – the wind goes glassy, calm, and you've got some clean, knee-to-waist high swell (3ft from the SW) rolling in. The water temperature is bang on average for this time of year at 81°, so no surprises there. The combined swell energy is weak to moderate (356). It's not big, but for a break that's inconsistent and a beginner-friendly spot, that glassy session will be the best of a quiet week. It's also the only time where the wind truly cooperates.
From Friday the 28th onwards, it's a write-off for a solid week. The onshore winds kick in from the NE and ENE, and the swell drops right off, barely hitting 2ft. The combined energy is low (as low as 67) and the surf quality is marked as poor. This flat spell runs right through until the end of August and into the first few days of September. There's a pulse of bigger swell around the 1st and 2nd of September (4ft to 6ft from the S), but the wind is cross-onshore or onshore, so it's going to be choppy and messy. The long period groundswell (15 seconds) on the 1st is promising in theory, but with onshore winds, it'll just be a lumpy mess at the beach.
The second week doesn't get much better. From the 4th of September onwards, there's consistent chest-to-head high swell (4ft to 8ft from the S and SSE) with moderate energy (565 to 2018). But the wind stays locked in from the ENE or NE, straight onshore or cross-onshore, creating choppy to lumpy conditions. The waves will be powerful – over 5ft this is not for beginners, and by the 9th of September (7ft to 8ft), it's expert-only territory anyway. With that onshore wind, even the bigger swell looks more interesting for a kite surfer than a paddle surfer.
So, the honest truth: there's one brief, glassy window on the afternoon of the 27th. If you can get out then for some clean, small waves, you'll be rewarded. The rest of the 16 days is a washout. Hang in there, mate. Conditions like this don't stick around forever.
Rusty.
Short Range ForecastHeavy rain (total 20mm), heaviest during Thu afternoon. Warm (max 29°C on Wed morning, min 24°C on Thu afternoon). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 8mm), mostly falling on Sun night. Warm (max 26°C on Fri night, min 23°C on Sun night). Wind will be generally light. | ||||||||||||||||||
Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | ||||||||||||||
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) | S 13 | SSW 12 | SSW 12 | SW 11 | SW 11 | SW 10 | SW 10 | E 13 | E 12 | E 12 | E 12 | E 12 | SW 10 | SW 10 | E 11 | SW 6 | SSW 13 | E 11 | S 12 |
Wave Graph  | |||||||||||||||||||
 kJ | 927 | 488 | 446 | 278 | 254 | 173 | 241 | 153 | 105 | 100 | 66 | 66 | 96 | 94 | 66 | 68 | 173 | 88 | 359 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | off | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-on |
High Tide | 3:23AM1.52m | 5:19PM1.66m | 4:14AM1.61m | 5:41PM1.69m | 4:58AM1.68m | 6:02PM1.71m | 5:39AM1.72m | 6:23PM1.71m | 6:18AM1.72m | 6:45PM1.71m | 6:58AM1.68m | 7:06PM1.69m | |||||||
Low Tide | 10:23PM1.07m | 10:21AM0.24m | 10:52PM0.94m | 10:58AM0.23m | 11:21PM0.81m | 11:31AM0.25m | 11:50PM0.69m | 12:03PM0.32m | 00:20AM0.58m | 12:32PM0.42m | 00:51AM0.50m | 1:01PM0.55m | 1:25AM0.44m | ||||||
 |  |  |  |  |  |  | |  |  |  | |  | | | | | | | |
 | — | 5:11 | — | — | 5:11 | — | — | 5:13 | — | — | 5:13 | — | — | 5:15 | — | — | 5:15 | — | — |
 | 6:21 | — | 6:19 | — | — | 6:17 | — | — | 6:16 | — | — | 6:15 | — | — | 6:14 | — | — | 6:13 | — |
mm | — | — | — | — | 3 | 9 | 7 | 1 | — | 1 | 1 | — | — | — | — | 6 | — | — | — |
Temp °C | 27 | 29 | 29 | 27 | 28 | 27 | 26 | 26 | 26 | 26 | 25 | 25 | 24 | 25 | 26 | 25 | 26 | 25 | 24 |
Feels °C | 30 | 31 | 31 | 30 | 31 | 32 | 29 | 30 | 27 | 29 | 27 | 27 | 26 | 28 | 29 | 27 | 28 | 27 | 26 |
Swell 1 Height (m) Direction Period (s) | S 13 | SSW 12 | SSW 12 | SW 11 | SW 11 | SW 10 | SW 10 | SW 6 | S 8 | SW 10 | SW 11 | SSW 6 | SW 10 | SW 10 | SW 6 | SW 6 | SW 6 | S 10 | S 12 |
| kJ | 927 | 488 | 446 | 278 | 254 | 173 | 241 | 96 | 47 | 134 | 117 | 23 | 96 | 94 | 64 | 68 | 24 | 75 | 359 |
Swell 2 Height (m) Direction Period (s) | E 13 | E 13 | SSE 9 | S 10 | S 11 | S 10 | E 13 | E 13 | E 12 | E 12 | E 12 | E 12 | E 11 | E 11 | E 11 | ENE 11 | SSW 13 | SW 5 | SW 9 |
| kJ | 168 | 114 | 73 | 127 | 82 | 71 | 170 | 153 | 105 | 100 | 66 | 66 | 62 | 65 | 66 | 43 | 173 | 17 | 53 |
Swell 3 Height (m) Direction Period (s) | SE 10 | SSE 9 | E 12 | E 12 | E 11 | E 13 | S 9 | SW 9 | SSE 9 | S 8 | S 8 | SW 10 | SSW 8 | ENE 5 | SW 9 | SW 10 | SW 10 | E 11 | E 11 |
| kJ | 50 | 55 | 103 | 98 | 61 | 90 | 58 | 67 | 8 | 33 | 32 | 53 | 13 | 9 | 22 | 36 | 34 | 88 | 65 |
Wind waves Height (m) Direction Period (s) | WSW 4 | WSW 4 | SW 4 | SW 4 | SW 6 | SW 6 | SW 6 | — | SW 9 | NW 4 | NW 3 | NE 3 | NE 4 | — | SW 6 | NE 2 | NE 3 | — | — |
| kJ | 20 | 23 | 40 | 34 | 89 | 89 | 46 | — | 186 | 2 | 1 | 2 | 7 | — | 102 | 1 | 2 | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 66 | 85 | 68 | 86 | 0 | 0 | 0 | 0 | 0 | 66 | 66 | 66 | 88 | 44 | 415 | 66 | 84 | 68 |
Best forecast wave conditions in Shizuoka | |||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||
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Information about the Kisami-Ohama Beach Surf forecast
The above surf forecast table for Kisami-Ohama Beach provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Kisami-Ohama Beach can be found by selecting the local surf guide option on the grey menu. Our Kisami-Ohama Beach 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 (Kisami-Ohama Beach) 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 Kisami-Ohama Beach 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.
Kisami-Ohama Beach is 3 km (2 miles) from the city of Shimoda. If you plan a holiday in Shizuoka, look for hotels and other accommodation in Shimoda. Shimoda has rooms for a wide range of budgets as well as car hire and transport links.
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