
Surf Forecasts:
Udo Shrine surf forecast from 30 Jul 2026:
- Best quality surf: Wednesday 5 Aug, 12PM (local time) - 18ft (5.5m), 18s period, ESE swell with cross-onshore winds.
- Most powerful swell: Friday 7 Aug, 12AM (local time) - 33ft (10.0m), 17s period, ESE swell with 62,244 kJ wave energy.
- Next surfable swell (1★+): Saturday 1 Aug, 6PM (local time) - 1.5ft (0.4m), 11s period with SE 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 Saturday (Aug 01) at 6PM. The primary swell is predicted to be 0.4m and 11s period with a secondary swell of 0.2m and 16s. 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 10.0m 17s and forecast to arrive on Friday (Aug 07) at 12AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 5.0m 10s period and expected on Thursday (Aug 06) at 9AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6PM (Sat 1st Aug) | 1.5ft (0.4m) 11s |
| Best Surf | 12PM (Wed 5th Aug) | 18ft (5.5m) 18s |
| Most Powerful | 12AM (Fri 7th Aug) | 33ft (10.0m) 17s |
Table - best surf conditions forecast for Udo Shrine over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s get into it.
First off, it’s a pretty quiet start for the next few days. The swell is small and the wind is just not doing us any favours. We’ve got a bit of a wait on our hands.
Looking at Udo Shrine (Japan), the first glimmer of hope shows up on the morning of Sunday, August 2nd. The forecast is calling for a clean, glassy morning with a small 2ft swell from the ESE. The period is a very long 16 seconds, which is proper groundswell, and the combined energy is moderate at 260. This is a reef break that’s inconsistent, so it doesn’t break often, but when it does, that long period could set up some nice lines. Keep in mind crowds are often a factor here. The water temp is about average for this time of year.
Sunday afternoon gets a bit more size at 3ft, but the wind goes cross-shore and the conditions become marginal. Monday the 3rd gets bigger, with 5ft to 6ft swell from the ESE, but a strong cross-onshore wind makes it choppy and messy. The combined energy jumps to strong levels (1356 to 2025), but the wind is the enemy.
From Tuesday the 4th onwards, the swell just keeps building, but it gets ugly. By Wednesday the 5th, we’re looking at 16ft to 20ft waves with a monstrous 18-19 second period and energy readings over 14,000 — that’s very strong. But the wind is howling onshore at 25 mph, turning it into a complete mess. The forecast notes straight up say the swell is too big for this break. This is more of a kite surfing situation than paddle surfing.
The big stuff keeps rolling through the 6th, 7th, and 8th, with waves up to 31ft and energy over 100,000, but it’s accompanied by near-gale force onshore winds. Absolutely not for the faint of heart, and not for a clean surf.
Things start to settle down a bit from the 9th, but the onshore wind persists, keeping conditions poor through the 10th and 11th. We get a few marginal windows on the 13th and 14th, with 4ft to 5ft ESE swell, but the wind is still cross-onshore, so the quality is low.
The standout session is undeniably the morning of Sunday, August 2nd. That’s your best bet. It’s the only time we get glassy conditions and a clean, rideable wave. The swell is small, but that long period will give it some punch for a reef. It’s inconsistent, but when it’s on, it’ll be worth it.
Other than that, this 16-day window is mostly a write-off for Udo Shrine. The first few days are flat, we get one good clean morning, then it’s either too small, too windy, or dangerously big. A tough stretch.
Rusty.
Short Range ForecastMostly dry. Warm (max 31°C on Fri afternoon, min 25°C on Thu night). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 40mm), heaviest during Tue afternoon. Warm (max 30°C on Sun night, min 27°C on Mon night). Winds increasing (light winds from the WNW on Sun night, strong winds from the NE by Wed afternoon). | ||||||||||||||||||
Friday 31 | Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | ||||||||||||||
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) | SE 10 | SE 10 | SE 9 | ESE 9 | SE 10 | ESE 9 | ESE 18 | ESE 16 | ESE 15 | ESE 16 | ESE 16 | ESE 17 | ESE 18 | ESE 18 | ESE 18 | ESE 18 | ESE 18 | ESE 19 | ESE 19 |
Wave Graph | |||||||||||||||||||
23 | 23 | 22 | 16 | 14 | 32 | 60 | 208 | 292 | 739 | 1348 | 2001 | 3123 | 4504 | 5686 | 10070 | 14129 | 23776 | 39918 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross | cross-off | cross-off | cross | cross-off | glassy | cross | cross | cross-on | cross-on | cross-on | cross-on | on | on | cross-on | cross-on | on |
High Tide | 6:42AM2.02m | 7:58PM1.97m | 7:17AM2.01m | 8:23PM1.98m | 7:55AM1.99m | 8:48PM1.99m | 8:35AM1.93m | 9:15PM1.99m | 9:21AM1.85m | 9:45PM1.97m | 10:16AM1.75m | 10:19PM1.93m | |||||||
Low Tide | 1:03AM0.97m | 1:22PM0.26m | 1:35AM0.90m | 1:51PM0.31m | 2:08AM0.83m | 2:20PM0.41m | 2:43AM0.76m | 2:51PM0.54m | 3:23AM0.72m | 3:24PM0.72m | 4:09AM0.69m | 4:02PM0.92m | |||||||
— | 5:28 | — | — | 5:28 | — | — | 5:30 | — | — | 5:30 | — | — | 5:31 | — | — | 5:31 | — | — | |
7:12 | — | 7:10 | — | — | 7:10 | — | — | 7:09 | — | — | 7:08 | — | — | 7:07 | — | — | 7:07 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | 9 | 4 | 12 | 11 | 2 | 2 | 5 |
Temp °C | 29 | 30 | 31 | 28 | 30 | 31 | 29 | 31 | 31 | 30 | 30 | 30 | 28 | 28 | 28 | 28 | 28 | 28 | 28 |
Feels °C | 33 | 32 | 34 | 32 | 33 | 34 | 33 | 35 | 34 | 34 | 32 | 32 | 31 | 29 | 30 | 29 | 27 | 27 | 27 |
Swell 1 Height (m) Direction Period (s) | SE 10 | SE 10 | SE 9 | ESE 9 | SE 10 | ESE 9 | ESE 9 | ESE 16 | ESE 15 | ESE 16 | ESE 16 | ESE 17 | ESE 18 | ESE 18 | ESE 18 | ESE 18 | ESE 18 | ESE 19 | ESE 19 |
23 | 23 | 22 | 16 | 14 | 32 | 31 | 208 | 292 | 739 | 1348 | 2001 | 3123 | 4504 | 5686 | 10070 | 14129 | 23776 | 39918 | |
Swell 2 Height (m) Direction Period (s) | SW 4 | E 9 | E 9 | SW 4 | E 9 | SE 16 | ESE 18 | ESE 9 | SE 8 | E 10 | S 7 | S 7 | SE 14 | — | — | — | — | — | — |
3 | 6 | 6 | 2 | 6 | 10 | 60 | 31 | 18 | 44 | 4 | 4 | 8 | — | — | — | — | — | — | |
Swell 3 Height (m) Direction Period (s) | E 9 | E 12 | NE 4 | ESE 13 | ESE 11 | E 12 | SW 6 | E 11 | E 16 | SE 10 | S 7 | S 7 | — | — | — | — | — | — | — |
6 | 12 | 1 | 16 | 12 | 3 | 1 | 21 | 46 | 15 | 4 | 4 | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | NE 4 | ENE 5 | ENE 6 | ENE 6 | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | 16 | 36 | 52 | 89 | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 58 | 83 | 628 | 297 | 709 | 374 | 0 | 0 | 136 | 0 | 33 | 310 | 33 | 33 | 33 | 33 | 302 | 136 | 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.











