Udo Shrine Surf Break

Lat Long: 31.63° N 131.46° E

Udo Shrine Surf Forecast and Surf Report

Issued: 8 pm 20 Aug 2026 (local time)

Forecast update in  hr  min

Today's Udo Shrine sea temperature is
28.7° C
0.2° 

Udo Shrine surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Udo Shrine surf forecast from 20 Aug 2026:

  • Best quality surf: Tuesday 25 Aug, 6AM (local time) - 18ft (5.5m), 17s period, ESE swell with cross-onshore winds.
  • Most powerful swell: Tuesday 25 Aug, 6PM (local time) - 25ft (7.5m), 16s period, SE swell with 26,604 kJ wave energy.
  • Next surfable swell (1★+): Friday 21 Aug, 12AM (local time) - 3.5ft (1.1m), 9s period with S 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 Friday (Aug 21) at 12AM. The primary swell is predicted to be 1.1m and 9s period. 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 7.5m 16s and forecast to arrive on Tuesday (Aug 25) 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 8s period and expected on Tuesday (Aug 25) at 12PM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+)12AM (Fri 21st Aug)3.5ft (1.1m) 9s
Best Surf 6AM (Tue 25th Aug)18ft (5.5m) 17s
Most Powerful 6PM (Tue 25th Aug)25ft (7.5m) 16s

Table - best surf conditions forecast for Udo Shrine over the next 16 days.


The Lowdown

Alright folks, Rusty here. Right off the bat, I gotta be straight with ya—this stretch is lookin’ tough. Udo Shrine is the only spot on the menu for the next couple of weeks, and it’s an inconsistent reef break that rarely delivers clean waves. The water temp is sitting at 84°F, which is dead average for this time of year, so no surprises there.

We kick things off with a long, quiet gap. From Thursday the 20th of August right through to Sunday the 23rd, it’s all poor surf conditions. Swell is small—around 3ft to 4ft—with short period windswell under 9 seconds. The wind is mostly cross-onshore or onshore, and the wave energy is weak, bouncing between 161 and 258 (combined swell energy). Not worth paddling out.

Monday the 24th shows a little life. The morning sees a 6ft swell from the SE at 16 seconds, with combined energy hitting 1750—that’s moderate energy. The afternoon bumps up to 8ft from the ESE, same long period of 17 seconds, and combined energy jumps to 3547. This is groundswell, and it’s shaping up alright for a reef like Udo, but the wind is onshore at 12 mph, so it’s marginal. The tide might mess with you too. This is for experienced surfers only, and it’s still a gamble.

Tuesday the 25th gets blown out fast. We’ve got a big 15ft to 18ft swell from the ESE with periods around 16 to 17 seconds, and combined energy in the five-digit range—11970 in the morning, 14570 in the arvo. But the wind is cross-onshore at 22 mph, making it lumpy and messy. Not our day.

Wednesday the 26th is a write-off. The swell pumps at 21ft from the E, but the wind is screaming at 31 mph in the morning and 25 mph in the afternoon. Combined energy is massive—16281 and 14027—but the onshore gale turns it into a washing machine. Way too big and blown out for any kind of fun.

Then we get a real standout. Thursday the 27th of August, morning session. The swell drops to a clean 12ft from the E, with a 12-second period and combined energy at 3712. The wind? Glassy. A perfect 3 mph offshore from the SW. That’s the sweet spot right there. For experienced surfers, this is the one. The swell direction is from the east, but the optimum is from the south for Udo Shrine, so it’s not a perfect match, but that glassy wind and solid groundswell will still produce some good, hollow waves over the reef. Crowds are often an issue here, and with a window like this, expect company.

After that, it falls apart fast. Friday the 28th through to early September, the surf goes from small to messy. A few pulses of 5ft to 8ft swell pop up, but the wind is relentless—onshore or cross-onshore at 16 to 37 mph. Combined energy during these days ranges from 31 (weak) to 7565 (strong), but the conditions are choppy, lumpy, or blown out. The last week is all poor surf, with onshore gales and rain showers. Not a single recommendation in there.

So here’s the bottom line: the best and only real standout is the morning of Thursday the 27th of August at Udo Shrine. Glassy offshore, 12ft groundswell, and moderate wave energy. That’s your window. Everything else is either too small, too windy, or too big and messy. For the rest of the 16-day run, save the gas.

Rusty.

Short Range Forecast

Light rain (total 5mm), mostly falling on Sat morning. Warm (max 28°C on Fri morning, min 26°C on Thu night). Wind will be generally light.

Days 5-7 Weather Summary

Heavy rain (total 48mm), heaviest during Tue night. Warm (max 32°C on Wed afternoon, min 25°C on Tue night). Winds increasing (light winds from the E on Sun night, severe gales from the NNE by Tue night).

Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
0
0
0
0
0
0
0
0
1
0
0
0
!
!
!
4
3
4
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.1
S
9
1.1
S
9
1
S
9
0.9
S
9
0.8
S
8
0.9
S
9
0.7
S
9
0.6
E
10
0.8
E
11
0.9
E
11
1.8
SE
17
2.5
SE
17
4
ESE
17
5.5
ESE
17
7
SE
16
6.5
SE
14
5
SE
12
4.5
SE
10
4
SE
10
Wave Graph
Metric surfscale
Energy kJ
186
194
155
126
92
122
85
72
152
178
1777
3738
10145
18268
25449
16740
5884
4182
2924
Wind (km/h)
5
NNE
10
ENE
10
ESE
5
E
15
NE
15
ENE
10
NE
15
NNE
15
E
10
NE
20
NE
20
ENE
25
NE
40
NNE
50
NNE
80
NNE
45
W
30
W
25
W
Wind State
glassy
on
cross-on
on
on
on
on
cross-on
cross-on
on
on
on
cross-on
cross-on
cross-on
cross-on
cross-off
cross-off
off
High Tide
10:29PM1.78m
2:13PM1.49m
11:25PM1.69m
4:05PM1.59m
1:09AM1.65m
4:44PM1.70m
2:48AM1.69m
5:13PM1.80m
3:51AM1.79m
5:40PM1.88m
4:38AM1.90m
6:05PM1.95m
Low Tide
6:09AM0.87m
5:30PM1.44m
7:47AM0.86m
8:18PM1.48m
9:11AM0.77m
9:49PM1.39m
10:07AM0.64m
10:34PM1.27m
10:49AM0.51m
11:09PM1.14m
11:24AM0.40m
11:39PM1.02m
clear
part cloud
clear
clear
thunderstorm
thunderstorm
thunderstorm
clear
clear
clear
thunderstorm
clear
clear
part cloud
thunderstorm
heavy rain
rain showers
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:41
5:43
5:43
5:43
5:43
5:45
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:52
6:52
6:51
6:49
6:47
6:46
6:45
 mm
1
1
3
1
3
39
5
Temp °C
27
28
28
27
28
28
27
28
28
27
27
28
27
27
28
27
30
32
28
Feels °C
32
32
31
32
31
31
31
32
31
31
29
29
29
25
25
22
27
31
28
  • Map Icons:
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  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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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