Surf Forecasts:
Ohara surf forecast from 23 Aug 2026:
- Best quality surf: Monday 24 Aug, 12PM (local time) - 5.5ft (1.7m), 17s period, SSE swell with offshore winds.
- Most powerful swell: Monday 24 Aug, 6PM (local time) - 6.5ft (2.0m), 15s period, SSE swell with 1,714 kJ wave energy.
- Next surfable swell (1★+): Sunday 23 Aug, 9PM (local time) - 2.5ft (0.7m), 12s period with SE swell.
Best Forecast Surf Conditions for Ohara this week:
The surf forecast for Ohara over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Aug 23) at 9PM. The primary swell is predicted to be 0.7m and 12s period with a secondary swell of 0.6m and 9s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Ohara in the next 16 days are 2.0m 15s and forecast to arrive on Monday (Aug 24) at 6PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 5s period and expected on Thursday (Aug 27) at 12AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Sun 23rd Aug) | 2.5ft (0.7m) 12s |
| Best Surf | 12PM (Mon 24th Aug) | 5.5ft (1.7m) 17s |
| Most Powerful | 6PM (Mon 24th Aug) | 6.5ft (2.0m) 15s |
Table - best surf conditions forecast for Ohara over the next 16 days.
The Lowdown
Alright, let’s break down what’s going on at Ohara. The only game in town, and it’s a real rollercoaster for the next couple weeks.
Water temp is about 81°F, which is normal for this time of year—nothing to write home about.
Sunday the 23rd is a bust. Waves are tiny—2ft out of the east, period a weak 9 seconds, and the wind is blowing cross-on. Energy is weak (103). It’s choppy, messy, just leave your board in the car.
Monday the 24th is the real highlight. Morning turns on with a glassy, light offshore southerly at 3 mph. Swell hits 3ft from the SSE, but the period stretches to a very long 18 seconds. That’s proper groundswell. Combined energy jumps to 941 (strong wave energy). It’s going to be clean and lined up. Monday afternoon builds to 6ft from the same SSE direction, 16-second period, with a cross-off wind from the SSW at 12 mph. Still clean, but the size gets a little spicy—better for experienced surfers.
Tuesday the 25th keeps some size—6ft in the morning, SSE with a 13-second period—but the wind is a moderate cross-off from the SSW at 16 mph. It’s clean-ish, but not as smooth as Monday. Energy is still strong (1624). By afternoon, the swell drops to 6ft and the energy is fading.
Wednesday the 26th drops off to 3ft, with strong cross-off winds. Thursday the 27th has a small bump to 4ft, period drops to 10 seconds, and it’s cloudy with storms possible. Not worth it.
Friday the 28th morning has a tiny moment: glassy conditions with 2ft from the east, 12-second period, and near-calm wind from the SW at 3 mph. Clean but small. After that, from Saturday the 29th through early September, it’s mostly poor—cross-on winds, choppy, small surf.
Early September sees a pulse again: 5ft to 6ft around the 1st and 2nd, but the wind is ugly, cross-on or onshore from the NNE/NE. The energy gets strong (up to 1801), but the surface is lumpy. Might be more fun for a kite than a surfboard.
Later, around the 6th and 7th, things get interesting again. Sunday the 6th has 5ft from the ESE, 12-second period, with a strong offshore south wind at 25 mph. Clean but punchy and hard to paddle into. Monday the 7th looks better: 5ft from the east, 10-second period, with a moderate offshore south wind at 12 mph. That could be a solid session, especially for the second week.
Overall, Monday the 24th is your best bet, maybe Friday the 28th morning if you’re desperate, and Monday the 7th of September as a long-range maybe. Ohara is inconsistent—it’s not the kind of spot that fires every day—but when it lines up, you’ll know.
Rusty.
Short Range ForecastMostly dry. Warm (max 29°C on Tue morning, min 24°C on Sun night). Wind will be generally light. | Days 4-6 Weather SummaryModerate rain (total 18mm), heaviest on Fri morning. Warm (max 29°C on Wed morning, min 23°C on Thu night). Winds decreasing (fresh winds from the SSW on Wed afternoon, calm by Fri night). | ||||||||||||||||||||
Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | |||||||||||||||
AM | PM | 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) | E 9 | SSE 12 | SSE 12 | SSE 18 | SSE 16 | SSE 13 | SSE 13 | SSE 13 | S 12 | S 12 | SSW 13 | SSW 12 | S 10 | E 13 | E 13 | E 12 | E 12 | S 10 | SSW 10 | S 10 | E 11 |
Wave Graph  | |||||||||||||||||||||
 kJ | 83 | 104 | 196 | 459 | 1634 | 960 | 1094 | 980 | 661 | 228 | 277 | 169 | 225 | 173 | 163 | 148 | 137 | 117 | 131 | 91 | 85 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | glassy | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | glassy | cross-off | glassy | cross-on | cross-on | cross-on |
High Tide | 4:18PM1.16m | 11:48PM1.19m | 4:09PM1.21m | 1:23AM1.23m | 4:19PM1.25m | 2:22AM1.30m | 4:34PM1.29m | 3:08AM1.36m | 4:50PM1.32m | 3:49AM1.41m | 5:07PM1.36m | 4:29AM1.43m | 5:24PM1.39m | ||||||||
Low Tide | 7:38PM1.13m | 8:17AM0.36m | 8:41PM1.05m | 8:59AM0.28m | 9:15PM0.96m | 9:34AM0.22m | 9:45PM0.85m | 10:05AM0.19m | 10:14PM0.75m | 10:34AM0.19m | 10:44PM0.63m | 11:02AM0.24m | 11:16PM0.53m | ||||||||
 |  |  | | | | | | | | |  |  | |  |  | |  |  | | | |
 | 5:03 | — | — | 5:03 | — | — | 5:03 | — | — | 5:05 | — | — | 5:05 | — | — | 5:07 | — | — | 5:07 | — | — |
 | — | 6:17 | — | — | 6:16 | — | — | 6:15 | — | — | 6:14 | — | — | 6:13 | — | — | 6:12 | — | — | 6:09 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | 2 | 8 | 6 | — | — | — | — | 6 |
Temp °C | 26 | 26 | 25 | 27 | 28 | 26 | 29 | 28 | 27 | 29 | 29 | 27 | 27 | 28 | 27 | 25 | 27 | 25 | 26 | 26 | 25 |
Feels °C | 28 | 28 | 30 | 29 | 29 | 28 | 30 | 28 | 28 | 29 | 30 | 27 | 28 | 30 | 29 | 26 | 29 | 29 | 27 | 27 | 27 |
Swell 1 Height (m) Direction Period (s) | E 9 | E 9 | SSE 12 | SSE 12 | SSE 16 | SSE 13 | SSE 13 | SSE 13 | S 12 | SSE 10 | SSE 9 | SSE 10 | S 10 | S 8 | S 9 | S 8 | E 12 | S 10 | SSW 10 | S 10 | S 8 |
| kJ | 83 | 80 | 196 | 226 | 1634 | 960 | 1094 | 980 | 661 | 209 | 156 | 96 | 225 | 108 | 99 | 86 | 137 | 117 | 131 | 90 | 46 |
Swell 2 Height (m) Direction Period (s) | SSW 9 | SSE 12 | E 9 | SSE 18 | ESE 12 | SSE 16 | S 16 | ESE 13 | ESE 13 | S 12 | SSW 13 | SSW 12 | E 11 | E 13 | E 13 | E 12 | S 8 | E 12 | E 12 | E 11 | E 11 |
| kJ | 15 | 104 | 57 | 459 | 109 | 893 | 329 | 184 | 176 | 228 | 277 | 169 | 58 | 173 | 163 | 148 | 61 | 99 | 98 | 91 | 85 |
Swell 3 Height (m) Direction Period (s) | SSE 4 | ESE 12 | ESE 12 | SSE 15 | ESE 8 | ESE 11 | ESE 14 | — | E 19 | ESE 12 | ESE 12 | E 12 | E 14 | SW 11 | SSE 10 | SSE 9 | SE 10 | SE 10 | SE 11 | SSE 11 | SE 10 |
| kJ | 4 | 57 | 50 | 256 | 38 | 95 | 201 | — | 7 | 117 | 113 | 70 | 64 | 31 | 36 | 35 | 23 | 23 | 30 | 47 | 27 |
Wind waves Height (m) Direction Period (s) | NNE 2 | NE 3 | — | — | SSW 8 | SW 4 | SSW 4 | SSW 4 | SSW 4 | SW 4 | SSW 4 | SSW 5 | — | — | WSW 4 | — | SSW 4 | SW 3 | — | — | — |
| kJ | 1 | 1 | — | — | 46 | 17 | 16 | 21 | 14 | 8 | 35 | 106 | — | — | 14 | — | 7 | 6 | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 9 | 111 | 0 | 0 | 8 | 92 | 92 | 589 | 92 | 92 | 589 | 104 | 104 | 92 | 8 | 0 | 8 | 0 | 58 | 58 | 9 |
Best forecast wave conditions in Chiba | |||||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||||
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Information about the Ohara Surf forecast
The above surf forecast table for Ohara provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Ohara can be found by selecting the local surf guide option on the grey menu. Our Ohara 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 (Ohara) 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 Ohara 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.
Ohara is 2 km (1 miles) from Ohara. If you plan a holiday in Chiba, look for hotels and other accommodation in Ohara. Ohara has rooms for a wide range of budgets as well as car hire and transport links.
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