Surf Forecasts:
Udo Shrine surf forecast from 31 Jul 2026:
- Best quality surf: Wednesday 5 Aug, 9AM (local time) - 16ft (5.0m), 18s period, ESE swell with cross-onshore winds.
- Most powerful swell: Thursday 6 Aug, 12PM (local time) - 34ft (10.5m), 18s period, ESE swell with 66,105 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 10.5m 18s and forecast to arrive on Thursday (Aug 06) at 12PM. 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 | 9AM (Wed 5th Aug) | 16ft (5.0m) 18s |
| Most Powerful | 12PM (Thu 6th Aug) | 34ft (10.5m) 18s |
Table - best surf conditions forecast for Udo Shrine over the next 16 days.
The Lowdown
Alright, folks, Rusty here. Let’s break down Udo Shrine.
First thing, it’s flat right now. The water is warm, sitting at 86°F, and a touch warmer than normal for this time of year. The first real chance to get wet is the morning of Sunday, August 2nd. We’ve got a glassy, flat calm morning with a 2ft swell from the ESE, and the period is a very long 16 seconds—that’s proper groundswell. The combined energy of all swells directed here is only 260 (moderate), so it’s not packing much punch. Because it’s a reef break, that long period will wrap in nicely, but with only 2ft on offer, it’s a longboard or funboard day. The wind is glassy, so the surface will be like a mirror. This is the best on offer, but it’s more of a gentle paddle than a wave you’ll be hooting about.
After that, the swell builds, but the wind turns onshore and messy. By Monday, August 3rd, we’ve got 5ft ESE swell at 16 seconds, but it’s cross-on wind from the NNE at 15 mph, making it choppy and poor. The energy jumps to 1344 (strong), but the quality is gone. Through Tuesday and Wednesday, the swell gets huge—over 10ft and up to 20ft by Wednesday afternoon—but the wind is onshore and strong. The combined energy hits 22,801 (very strong) on Wednesday afternoon, but it’s a total, blown-out mess. By Friday, August 7th, we’re looking at 30ft plus swell with near gale force winds. That’s not surf; that’s a survival mission. The setup looks more interesting for kite surfing than paddle surfing.
The second week, from August 10th onward, the swell drops back to around 4ft to 6ft, but the wind remains onshore or cross-on. The period drops to 12 to 13 seconds, so the energy is weaker (moderate, around 700-1700). It’s consistently poor, with no standout windows of clean conditions. The whole run is a bit of a dry spell.
So, the one true standout is the glassy Sunday morning, August 2nd. It’s tiny, but it’s clean. After that, it’s either too big and blown out, or just small and messy. Not a classic stretch for Udo Shrine.
Rusty.
Short Range ForecastMostly dry. Warm (max 32°C on Sat afternoon, min 26°C on Fri night). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 51mm), heaviest during Tue morning. Warm (max 29°C on Mon afternoon, min 27°C on Mon night). Winds increasing (light winds from the NNE on Mon afternoon, near gales from the NE by Thu morning). | |||||||||||||||||||
Fri 31 | Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | ||||||||||||||
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) | SE 9 | ESE 9 | SE 10 | ESE 9 | ESE 18 | ESE 16 | ESE 15 | ESE 16 | ESE 16 | ESE 16 | ESE 17 | ESE 18 | E 18 | ESE 18 | ESE 18 | ESE 18 | ESE 19 | ESE 19 | ESE 18 | SE 17 |
Wave Graph  | ||||||||||||||||||||
 kJ | 22 | 16 | 14 | 34 | 60 | 208 | 292 | 749 | 1331 | 1774 | 3052 | 3796 | 6371 | 7349 | 15919 | 22801 | 40923 | 64353 | 59190 | 53918 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-off | glassy | cross-off | cross-off | glassy | cross | cross-off | cross-on | on | on | on | on | cross-on | cross-on | cross-on | on | on | on | on |
High Tide | 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 | 11:29AM1.64m | 11:02PM1.88m | |||||||
Low Tide | 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 | 5:05AM0.67m | 4:49PM1.14m | ||||||||
 |  | | | | | |  |  | |  |  | | | | | | | | | |
 | — | — | 5:28 | — | — | 5:30 | — | — | 5:30 | — | — | 5:31 | — | — | 5:31 | — | — | 5:31 | — | — |
 | 7:10 | — | — | 7:10 | — | — | 7:09 | — | — | 7:08 | — | — | 7:07 | — | — | 7:07 | — | — | 7:07 | — |
mm | — | — | — | — | — | — | — | — | — | — | 14 | 11 | 8 | 8 | 2 | 2 | 4 | 2 | 5 | 11 |
Temp °C | 31 | 28 | 30 | 32 | 30 | 31 | 31 | 30 | 30 | 29 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 29 |
Feels °C | 34 | 32 | 34 | 36 | 34 | 34 | 34 | 34 | 32 | 31 | 30 | 30 | 30 | 30 | 27 | 27 | 27 | 25 | 24 | 25 |
Swell 1 Height (m) Direction Period (s) | SE 9 | ESE 9 | SE 10 | ESE 9 | SE 9 | ESE 16 | ESE 15 | ESE 16 | ESE 16 | ESE 16 | ESE 17 | ESE 18 | E 18 | ESE 18 | ESE 18 | ESE 18 | ESE 19 | ESE 19 | SE 18 | SSE 17 |
| kJ | 22 | 16 | 14 | 34 | 20 | 208 | 292 | 749 | 1331 | 1774 | 3052 | 3796 | 6371 | 7349 | 15919 | 22801 | 40923 | 64353 | 52615 | 35474 |
Swell 2 Height (m) Direction Period (s) | E 9 | SW 4 | ESE 11 | SE 16 | ESE 18 | ESE 9 | E 16 | E 10 | S 7 | S 7 | ENE 7 | — | — | — | — | — | — | — | — | — |
| kJ | 6 | 3 | 12 | 10 | 60 | 31 | 46 | 28 | 4 | 4 | 199 | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | NE 4 | ESE 13 | E 9 | E 12 | SW 6 | E 11 | SE 8 | SE 10 | S 7 | S 7 | — | — | — | — | — | — | — | — | — | — |
| kJ | 1 | 16 | 6 | 3 | 5 | 21 | 17 | 15 | 4 | 4 | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SW 3 | — | — | SSW 2 | WSW 5 | — | — | — | NNE 3 | NE 4 | ENE 8 | ENE 8 | ENE 8 | E 9 | — | — | NE 9 | ENE 10 | ESE 18 | SE 17 |
| kJ | 2 | — | — | 1 | 15 | — | — | — | 5 | 25 | 283 | 302 | 416 | 607 | — | — | 2060 | 4672 | 59190 | 53918 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 324 | 310 | 771 | 712 | 0 | 0 | 324 | 0 | 33 | 33 | 33 | 33 | 33 | 33 | 310 | 371 | 213 | 213 | 801 | 812 |
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.
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