
Surf Forecasts:
Udo Shrine surf forecast from 16 Sep 2026:
- Best quality surf: Sunday 20 Sep, 9AM (local time) - 10ft (3.0m), 12s period, E swell with glassy winds.
- Most powerful swell: Saturday 19 Sep, 6PM (local time) - 11ft (3.5m), 13s period, E swell with 3,717 kJ wave energy.
- Next surfable swell (1★+): Sunday 20 Sep, 9AM (local time) - 10ft (3.0m), 12s period with E 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 (Sep 20) at 9AM. The primary swell is predicted to be 3.0m and 12s period with a secondary swell of 0.3m and 9s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Udo Shrine in the next 16 days are 3.5m 13s and forecast to arrive on Saturday (Sep 19) at 6PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.0m 11s period and expected on Saturday (Sep 19) at 12PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9AM (Sun 20th Sep) | 10ft (3.0m) 12s |
| Best Surf | 9AM (Sun 20th Sep) | 10ft (3.0m) 12s |
| Most Powerful | 6PM (Sat 19th Sep) | 11ft (3.5m) 13s |
Table - best surf conditions forecast for Udo Shrine over the next 16 days.
The Lowdown
Alright, let’s be straight with you. The next couple of days at Udo Shrine are pretty much a write-off. We’ve got some junk wind and tiny, weak swell, so don’t even think about paddling out yet. Wednesday morning has a bit of east swell at 4 feet, but that northeast cross-onshore breeze is chopping it all up. The energy is weak at 449, and it just doesn’t have any push.
That poor run carries right through Thursday and Friday. We’re talking ankle-biters, 2 feet or less, with onshore winds and a bit of rain around. It’s flat, it’s messy, and honestly, you’re better off doing anything else.
Now, here’s where it gets interesting. The weekend starts to show some signs of life but it’s still not clean. Saturday the 19th has a bump in size – 10 feet by the afternoon – but that northeast cross-onshore wind is still messing with it, and the energy jumps up to 3458, which is moderate to strong. It’s got some push, but the surface is going to be rough. Not the one.
Sunday the 20th is the first real standout. The wind drops right out – glassy conditions, both morning and afternoon. The swell holds at 10 feet from the east, with a 12-second period. The energy is strong at 2772. This is real, clean, powerful surf. For experienced surfers only – this is not a beginner wave. The water temp is 82°, which is right on average for this time of year, so nothing unusual there. This is the pick of the first week, no doubt.
Monday the 21st is still okay, especially the afternoon. The swell drops to 5 feet but it’s glassy with an 11-second period. It’s a bit weaker energy-wise at 568, but it’ll be clean and fun for the better surfers. The morning is a bit cross-on with 8 feet, so it’s a bit more challenging.
Then we hit another flat spell. Tuesday the 22nd through to Friday the 25th is basically nothing. We’re talking 1 to 3 feet of weak, short-period junk. The energy is in the low double digits, sometimes triple, but it’s all mush. Poor conditions, poor winds. This is a dead stretch, a good week to get other things sorted.
Now, hold on, because the end of the window is where the real magic is. Saturday the 26th sees the swell start to build again – 8 feet in the morning from the southeast, jumping to 10 feet by the afternoon. The morning is glassy and clean with strong energy at 2736. Excellent conditions for experienced surfers. The afternoon gets a light cross-shore wind, so it’s not as perfect, but it’s still pumping.
Sunday the 27th is big. The swell is pushing 11 to 13 feet from the SSE, with a 14 to 15-second period. The energy is massive – 5239 in the morning, jumping to 6949 in the afternoon. But the winds are onshore or cross-onshore, which is going to put some chop on it. It’s powerful, but it’s not clean. Only for the experienced, and even then, it might be a handful.
Monday the 28th is the absolute standout of the entire forecast. The morning is glassy, with a massive 20 feet of swell from the SSE with a 15-second period. The energy is enormous at 14965. This is a once-in-a-while type of day. It’s perfect, powerful, and clean. Expert only. The afternoon gets bigger – 23 feet – but the wind swings to a cross-off and there’s a risk of thunderstorms. The energy is 21507, which is just insane. It’s too big for most, but for the elite, this is the day.
Tuesday the 29th is still big – 16 feet in the morning with a light offshore wind. Clean, powerful, and the energy is still strong at 7186. Another expert-only day. The afternoon eases to 10 feet, but the wind picks up a bit, making it more marginal.
After that, the swell fades fast. Wednesday the 30th and Thursday the 1st of October are back to small, weak, and poor. It’s done.
So, in short: the first week is a washout until Sunday the 20th. Then there’s a long flat spell. The real gold is at the end – Sunday the 28th is the day to circle, with Monday the 29th as a solid backup. These are big, powerful, glassy swells, so you need to know what you’re doing. Don’t bring the beginners.
Rusty.
Short Range ForecastHeavy rain (total 72mm), heaviest during Fri night. Warm (max 26°C on Wed morning, min 24°C on Wed night). Mainly fresh winds. | Days 4-6 Weather SummaryMostly dry. Warm (max 26°C on Sat afternoon, min 23°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | Tuesday 22 | |||||||||||||||
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 | E 14 | E 13 | E 13 | E 13 | S 11 | S 10 | S 9 | E 10 | ESE 14 | E 13 | E 12 | E 12 | E 12 | E 12 | E 12 | E 11 | S 8 | NE 6 | NE 5 | S 8 |
Wave Graph | |||||||||||||||||||||
240 | 200 | 168 | 168 | 117 | 3 | 3 | 7 | 1232 | 631 | 3446 | 3090 | 2759 | 2584 | 2239 | 1480 | 563 | 5 | 38 | 25 | 4 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | on | on | cross-on | on | on | on | cross-on | cross-on | cross | glassy | glassy | cross-off | cross-on | glassy | cross-on | cross-on | on | cross |
High Tide | 9:13AM1.80m | 8:32PM1.96m | 9:59AM1.67m | 8:57PM1.87m | 11:04AM1.55m | 9:26PM1.76m | 1:20PM1.50m | 10:15PM1.64m | 3:30PM1.58m | 00:21AM1.56m | 4:06PM1.68m | 2:25AM1.61m | 4:33PM1.78m | ||||||||
Low Tide | 2:39PM1.08m | 3:20AM0.63m | 3:05PM1.22m | 4:04AM0.74m | 3:34PM1.35m | 5:07AM0.84m | 4:37PM1.46m | 6:49AM0.88m | 8:06PM1.46m | 8:30AM0.81m | 9:31PM1.33m | 9:32AM0.69m | 10:10PM1.17m | ||||||||
5:58 | — | — | 5:58 | — | — | 5:58 | — | — | 5:58 | — | — | 6:00 | — | — | 6:01 | — | — | 6:01 | — | — | |
— | 6:19 | — | — | 6:17 | — | — | 6:16 | — | — | 6:15 | — | — | 6:14 | — | — | 6:13 | — | — | 6:12 | — | |
mm | — | 2 | — | 4 | 4 | 18 | 12 | 16 | 16 | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 26 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 26 | 25 | 26 | 26 | 25 | 26 | 26 | 25 | 24 | 25 | 24 |
Feels °C | 28 | 26 | 25 | 26 | 24 | 26 | 25 | 26 | 23 | 24 | 25 | 26 | 28 | 29 | 27 | 27 | 27 | 24 | 23 | 25 | 25 |
Swell 1 Height (m) Direction Period (s) | E 9 | ESE 9 | ESE 9 | ESE 9 | E 13 | E 12 | ENE 12 | S 9 | S 9 | ESE 14 | E 13 | E 12 | E 12 | E 12 | E 12 | E 12 | E 11 | E 10 | ENE 10 | ENE 9 | ENE 9 |
240 | 177 | 143 | 86 | 117 | 73 | 48 | 7 | 14 | 631 | 3446 | 3090 | 2759 | 2584 | 2239 | 1480 | 563 | 212 | 128 | 113 | 90 | |
Swell 2 Height (m) Direction Period (s) | E 14 | E 14 | E 13 | E 13 | SE 8 | SE 8 | SE 8 | SE 8 | E 18 | S 8 | S 8 | S 9 | S 9 | S 9 | S 9 | S 8 | NE 6 | ENE 7 | S 8 | S 8 | S 8 |
198 | 200 | 168 | 168 | 3 | 3 | 3 | 3 | 6 | 13 | 12 | 13 | 13 | 6 | 6 | 6 | 46 | 18 | 5 | 5 | 4 | |
Swell 3 Height (m) Direction Period (s) | S 7 | S 7 | S 7 | SE 9 | SE 8 | S 11 | S 10 | — | SE 9 | SE 9 | — | — | — | — | — | — | S 8 | S 8 | SE 10 | SE 9 | SE 9 |
1 | 1 | 1 | 3 | 3 | 2 | 2 | — | 3 | 3 | — | — | — | — | — | — | 5 | 5 | 4 | 3 | 3 | |
Wind waves Height (m) Direction Period (s) | NNE 4 | NE 5 | NE 5 | ENE 6 | ENE 6 | E 7 | ENE 8 | ENE 8 | E 10 | ENE 10 | ENE 11 | — | — | — | NNE 7 | NNE 7 | NNE 6 | NE 6 | NE 6 | NE 5 | — |
10 | 35 | 48 | 100 | 253 | 262 | 623 | 831 | 1232 | 1322 | 1415 | — | — | — | 278 | 158 | 122 | 116 | 38 | 25 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 33 | 33 | 33 | 33 | 33 | 33 | 297 | 136 | 33 | 33 | 33 | 0 | 0 | 0 | 0 | 1 | 0 | 5 | 58 | 324 | 0 |
Best forecast wave conditions in Kyu Shu | |||||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)
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.










