
Surf Forecasts:
Udo Shrine surf forecast from 5 Aug 2026:
- Best quality surf: Wednesday 5 Aug, 9PM (local time) - 18ft (5.5m), 16s period, ESE swell with cross-onshore winds.
- Most powerful swell: Thursday 6 Aug, 6PM (local time) - 23ft (7.0m), 16s period, ESE swell with 23,859 kJ wave energy.
- Next surfable swell (1★+): Wednesday 5 Aug, 9PM (local time) - 18ft (5.5m), 16s 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 Wednesday (Aug 05) at 9PM. The primary swell is predicted to be 5.5m and 16s period. The wind is predicted to be cross-onshore as the swell arrives.
The most powerful waves expected at Udo Shrine in the next 16 days are 7.0m 16s and forecast to arrive on Thursday (Aug 06) at 6PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 4.0m 9s period and expected on Friday (Aug 07) at 12AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Wed 5th Aug) | 18ft (5.5m) 16s |
| Best Surf | 9PM (Wed 5th Aug) | 18ft (5.5m) 16s |
| Most Powerful | 6PM (Thu 6th Aug) | 23ft (7.0m) 16s |
Table - best surf conditions forecast for Udo Shrine over the next 16 days.
The Lowdown
Alright, this is Rusty, and I’ve got a look at the only game in town for the next couple of weeks.
Alright folks, straight up – the only break showing any kind of potential in the whole 16-day window is Udo Shrine. It’s a reef setup, inconsistent, and when it’s on, it’s for the intermediate crew. The crowd factor is there too – people know this spot, so you’ll often have company. Water temp is sitting at 85°F, which is about normal for this time of year.
Now, let’s be real. The first week is a write-off. We’re talking a solid run of poor conditions from Wednesday the 5th through to the end of the first week. Strong, messy winds from the northeast and east just hammering the place. The swell is pumping, but it’s a washing machine. From Wednesday the 5th morning, the swell is already 15 ft from the east, with a very long 16-second period, but the wind is a cross-onshore mess. The combined energy is massive (10837), but it’s unrideable. This pattern continues – Thursday the 6th and Friday the 7th see the swell jump to 21 ft to 23 ft, still with that long period (15-16 seconds), but the wind is onshore or cross-onshore and howling. The energy readings are off the charts (33196, 42280) but it’s just too big and blown out for anyone but the insane. Saturday the 8th through to Tuesday the 11th is a write-off – strong winds, lumpy, choppy, with constant storm risks. You’re looking at a solid week of no-go.
There’s a bit of a light at the tunnel on Wednesday the 12th. The swell drops to 5 ft from the south, period 11 seconds, and the wind drops to a light breeze. The energy is weak (502), and it’s still cross-onshore, so it’s marginal. Thursday the 13th is similar with small, weak 3 ft to 4 ft swell. Friday the 14th morning is actually glassy with the wind gone to zero, but the swell is tiny – just 3 ft from the south. It’s surfable, but very ordinary.
Now, here’s the one true standout. Saturday the 15th of August. The morning is looking promising. The wind is a whisper from the northeast at 3 mph, making it glassy. The swell is still small, 3 ft from the east with a 10-second period, but the conditions are clean. The energy is very weak (216), but for a reef break, that glassy surface is the key. It’s the only morning in the whole forecast that gets the nod for "good surf conditions". The south-east swell direction is not ideal for this spot (it prefers S), but with the wind being glassy, you’ll take what you can get.
After that, it’s back to the wind. The second week goes downhill again. Sunday the 16th and Monday the 17th are a mix of poor conditions and building onshore wind. Tuesday the 18th brings a cross-onshore bump with 7 ft swell, but it’s messy. Wednesday the 19th and Thursday the 20th see another pulse of 12 ft swell and strong cross or cross-offshore winds, but the energy is solid (5369 and 2153) and the period is long (12-14 seconds). The conditions are still described as poor or marginal, so it’s not a goer.
So, the long and short of it: the first week is a total loss. The best bet, and it’s a slim one, is the glassy morning of Saturday the 15th at Udo Shrine for some small, clean waves. Everything else is either too windy, too big, or too small. The forecast further out is promising, but we’ve seen that before.
Rusty.
Short Range ForecastHeavy rain (total 56mm), heaviest during Fri night. Warm (max 28°C on Wed morning, min 27°C on Wed night). Mainly strong winds. | Days 4-6 Weather SummaryHeavy rain (total 108mm), heaviest during Sat afternoon. Warm (max 28°C on Sat morning, min 27°C on Sat morning). Mainly strong winds. | ||||||||||||||||||||
Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | |||||||||||||||
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 16 | ESE 16 | ESE 16 | ESE 15 | ESE 16 | SE 16 | SE 15 | SSE 14 | SSE 14 | S 13 | ESE 10 | ESE 9 | S 13 | ESE 8 | ESE 9 | ESE 8 | S 12 | S 12 | S 11 | S 11 | E 12 |
Wave Graph | |||||||||||||||||||||
10837 | 14531 | 16110 | 17356 | 22070 | 18486 | 22024 | 12466 | 7522 | 4176 | 3400 | 2046 | 1676 | 1565 | 1998 | 1674 | 1364 | 1229 | 771 | 953 | 814 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | on | on | on | on | cross-on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 10:16AM1.75m | 10:19PM1.93m | 11:29AM1.64m | 11:02PM1.88m | 1:17PM1.59m | 00:03AM1.82m | 3:25PM1.66m | 1:32AM1.80m | 4:41PM1.80m | 3:02AM1.86m | 5:29PM1.93m | 4:13AM1.97m | 6:07PM2.01m | ||||||||
Low Tide | 4:02PM0.92m | 5:05AM0.67m | 4:49PM1.14m | 6:17AM0.66m | 6:03PM1.33m | 7:45AM0.60m | 8:05PM1.43m | 9:10AM0.47m | 9:49PM1.38m | 10:18AM0.32m | 10:51PM1.26m | 11:12AM0.18m | 11:36PM1.12m | ||||||||
5:31 | — | — | 5:31 | — | — | 5:33 | — | — | 5:33 | — | — | 5:33 | — | — | 5:35 | — | — | 5:35 | — | — | |
— | 7:07 | — | — | 7:07 | — | — | 7:06 | — | — | 7:05 | — | — | 7:04 | — | — | 7:02 | — | — | 7:01 | — | |
mm | 2 | 2 | 5 | 5 | 6 | 10 | 5 | 5 | 16 | 7 | 13 | 18 | 7 | 9 | 21 | 11 | 10 | 12 | 4 | 4 | 13 |
Temp °C | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 27 | 27 | 28 | 27 | 28 | 28 | 27 | 27 | 28 | 28 | 28 |
Feels °C | 28 | 27 | 28 | 26 | 26 | 25 | 25 | 26 | 26 | 27 | 26 | 26 | 27 | 25 | 26 | 27 | 25 | 25 | 28 | 29 | 31 |
Swell 1 Height (m) Direction Period (s) | E 16 | ESE 16 | ESE 16 | ESE 15 | ESE 15 | SE 16 | SSE 15 | SSE 14 | SSE 14 | S 13 | S 13 | S 13 | S 13 | S 12 | S 12 | S 12 | S 12 | S 12 | S 11 | S 11 | E 12 |
10837 | 14531 | 16110 | 15840 | 20210 | 18486 | 15529 | 12466 | 7522 | 4176 | 2441 | 1676 | 1676 | 1522 | 1346 | 1480 | 1355 | 1229 | 771 | 953 | 814 | |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | ENE 15 | E 15 | E 15 | E 16 | SE 15 | SW 16 | SSW 16 | E 13 | E 12 | E 12 | E 12 | S 11 |
— | — | — | — | — | — | — | — | — | 43 | 17 | 17 | 76 | 9 | 90 | 561 | 488 | 430 | 365 | 446 | 676 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SSW 16 | — | SW 13 | SW 12 | WSW 11 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 366 | — | 44 | 37 | 12 | |
Wind waves Height (m) Direction Period (s) | — | — | — | ESE 15 | ESE 16 | ENE 9 | SE 15 | E 11 | E 10 | ESE 10 | ESE 10 | ESE 9 | ESE 9 | ESE 8 | ESE 9 | ESE 8 | ESE 8 | ESE 8 | ESE 7 | E 7 | — |
— | — | — | 17356 | 22070 | 2378 | 22024 | 3534 | 3337 | 3156 | 3400 | 2046 | 1582 | 1565 | 1998 | 1674 | 1364 | 1093 | 516 | 135 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 302 | 853 | 302 | 374 | 801 | 302 | 812 | 801 | 801 | 812 | 812 | 297 | 801 | 801 | 848 | 709 | 1211 | 297 | 297 | 248 | 213 |
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.











