
Surf Forecasts:
Udo Shrine surf forecast from 1 Aug 2026:
- Best quality surf: Wednesday 5 Aug, 9AM (local time) - 16ft (5.0m), 17s period, E swell with cross-onshore winds.
- Most powerful swell: Thursday 6 Aug, 9AM (local time) - 28ft (8.5m), 18s period, ESE swell with 45,697 kJ wave energy.
- Next surfable swell (1★+): Sunday 2 Aug, 3AM (local time) - 1ft (0.3m), 18s period with ESE swell.
Best Forecast Surf Conditions for Udo Shrine this week:
The surf forecast for Udo Shrine over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Aug 02) at 3AM. The primary swell is predicted to be 0.3m and 18s period with a secondary swell of 0.3m and 15s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Udo Shrine in the next 16 days are 8.5m 18s and forecast to arrive on Thursday (Aug 06) at 9AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 4.5m 10s period and expected on Thursday (Aug 06) at 12PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Sun 2nd Aug) | 1ft (0.3m) 18s |
| Best Surf | 9AM (Wed 5th Aug) | 16ft (5.0m) 17s |
| Most Powerful | 9AM (Thu 6th Aug) | 28ft (8.5m) 18s |
Table - best surf conditions forecast for Udo Shrine over the next 16 days.
The Lowdown
Oi, Rusty here. Look, I'm gonna be straight with you – this forecast for Udo Shrine (Japan) is a bit of a rollercoaster, and not in a good way. We've got a huge window of nothing but oversized, wind-chopped mess before a couple of tiny windows of hope. Let's get into it.
The overall pattern is all about a massive pulse of long-period groundswell that arrives way too big for this reef break, combined with brutal onshore winds. The water temp is about average for the time of year, so no worries there.
The first real chance to paddle out, and honestly, the only truly good session on offer, is Sunday morning, the 2nd of August. It's not big, only 2 feet of swell from the ESE, but the period is a very long 16 seconds. That means the energy is deep and powerful for the size. The real winner here is the wind – it's glassy, dead calm from the SSE at 3 mph. The combined energy is 260 (moderate), but with that glassy surface, the sets will be clean and lined up. It's a bit inconsistent, and crowds are often a thing here, but for a Sunday morning surf, this is a gem.
The rest of the first week and into the second is a write-off. Starting Sunday afternoon and through until late on Tuesday the 11th, the swell just gets blown out. From Monday the 3rd, the wind swings onshore from the NE and howls, building to over 25 mph. The swell pumps up from 5 feet to a massive 28 feet by Thursday the 6th, with combined energy readings hitting 86,920 (very strong). This is too big, even for experts. The period is 16-18 seconds, which is very long period groundswell. For a reef break, that could be epic, but not when it's getting hammered by a near gale. This setup looks more interesting for kite surfing than paddle surfing.
We then get a slow, messy drop-off through the 8th, 9th, and 10th of August. The swell is still big and the wind is still onshore, creating poor, choppy conditions.
After a long gap of poor conditions, the next flicker of life comes Thursday morning, the 13th of August. The swell drops to 4 feet from the E, with a 12-second period, and the combined energy is weak at 471. But once again, the wind is glassy, from the ESE at 3 mph. It's a small, clean wave. The afternoon also looks okay with a light cross-offshore wind from the S. This is a promising but less certain window due to the long-range forecast.
After that, the forecast gets ugly again. Friday the 14th and Saturday the 15th have some size (6 feet to 8 feet) but with cross-onshore winds, making it lumpy. The final few days of the outlook are a total bust – tiny, weak swell with onshore winds.
So, keep your eyes on that Sunday morning, the 2nd of August for the stand-out session. The Thursday the 13th is a backup for a small, clean wave. The rest is a hard pass.
Rusty.
Short Range ForecastHeavy rain (total 35mm), heaviest during Tue morning. Warm (max 31°C on Sun morning, min 27°C on Sat night). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 54mm), heaviest during Fri morning. Warm (max 28°C on Tue night, min 27°C on Tue night). Winds increasing (moderate winds from the NE on Tue night, strong winds from the NE by Wed night). | ||||||||||||||||||
Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | ||||||||||||||
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 18 | ESE 16 | ESE 15 | ESE 16 | ESE 16 | ESE 16 | ESE 16 | ESE 17 | ESE 17 | E 18 | E 17 | ESE 18 | ESE 18 | ESE 18 | SE 17 | SE 17 | SE 16 | SSE 16 | SSE 16 |
Wave Graph | |||||||||||||||||||
60 | 208 | 292 | 783 | 1180 | 1557 | 2516 | 3710 | 4001 | 9068 | 15435 | 21458 | 30673 | 45697 | 31005 | 40941 | 29796 | 17717 | 15513 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | glassy | cross | cross-off | cross-on | cross-on | cross-on | on | on | on | cross-on | cross-on | on | on | on | on | on | on | on |
High Tide | 7:55AM1.99m | 8:48PM1.99m | 8:35AM1.93m | 9:15PM1.99m | 9:21AM1.85m | 9:45PM1.97m | 10:16AM1.75m | 10:19PM1.93m | 11:29AM1.64m | 11:02PM1.88m | 1:17PM1.59m | 00:03AM1.82m | |||||||
Low Tide | 2:08AM0.83m | 2:20PM0.41m | 2:43AM0.76m | 2:51PM0.54m | 3:23AM0.72m | 3:24PM0.72m | 4:09AM0.69m | 4:02PM0.92m | 5:05AM0.67m | 4:49PM1.14m | 6:17AM0.66m | 6:03PM1.33m | |||||||
— | 5:30 | — | — | 5:30 | — | — | 5:31 | — | — | 5:31 | — | — | 5:31 | — | — | 5:33 | — | — | |
7:10 | — | 7:09 | — | — | 7:08 | — | — | 7:07 | — | — | 7:07 | — | — | 7:07 | — | — | 7:06 | — | |
mm | — | — | — | — | 1 | 1 | 18 | 9 | 6 | 6 | 4 | 2 | 7 | 4 | 4 | 11 | 9 | 7 | 16 |
Temp °C | 29 | 31 | 31 | 30 | 30 | 30 | 28 | 28 | 29 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 |
Feels °C | 32 | 35 | 34 | 34 | 31 | 32 | 31 | 30 | 31 | 30 | 27 | 26 | 26 | 25 | 26 | 26 | 26 | 26 | 27 |
Swell 1 Height (m) Direction Period (s) | ESE 9 | ESE 16 | ESE 15 | ESE 16 | ESE 16 | ESE 16 | ESE 16 | ESE 17 | ESE 17 | E 18 | E 17 | ESE 18 | ESE 18 | ESE 18 | SE 17 | SSE 17 | SSE 16 | SSE 16 | SSE 16 |
31 | 208 | 292 | 783 | 1180 | 1557 | 2516 | 3710 | 4001 | 9068 | 15435 | 21458 | 30673 | 41223 | 31005 | 30968 | 24518 | 17717 | 15513 | |
Swell 2 Height (m) Direction Period (s) | ESE 18 | ESE 9 | E 16 | E 10 | S 7 | S 7 | S 12 | — | — | — | — | — | — | — | — | — | — | — | — |
60 | 31 | 46 | 47 | 4 | 4 | 3 | — | — | — | — | — | — | — | — | — | — | — | — | |
Swell 3 Height (m) Direction Period (s) | SW 4 | E 11 | SE 8 | SE 10 | SSW 7 | S 7 | — | — | — | — | — | — | — | — | — | — | — | — | — |
2 | 21 | 17 | 15 | 5 | 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | NE 4 | ENE 7 | ENE 7 | E 8 | — | — | NE 8 | — | ESE 18 | ENE 10 | SE 17 | SE 16 | E 10 | E 10 |
— | — | — | — | — | 26 | 83 | 181 | 397 | — | — | 939 | — | 45697 | 3604 | 40941 | 29796 | 3599 | 1934 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 324 | 0 | 33 | 33 | 33 | 33 | 33 | 33 | 310 | 848 | 302 | 213 | 801 | 248 | 812 | 812 | 848 |
Best forecast wave conditions in Kyu Shu | |||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||
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Information about the Udo Shrine Surf forecast
The above surf forecast table for Udo Shrine provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Udo Shrine can be found by selecting the local surf guide option on the grey menu. Our Udo Shrine 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 (Udo Shrine) 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 Udo Shrine 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.
Udo Shrine is 10 km (6 miles) from Nichinan. If you plan a holiday in Kyu Shu, look for hotels and other accommodation in Nichinan. Nichinan has rooms for a wide range of budgets as well as car hire and transport links.











