Reef
both
Level 5/10

Sunabe Seawall

Chatan, Japan
🪸Sharp reef🦔Urchins👥Crowded⚠️Shallow

Sunabe Seawall is the most hallowed ground for surfing in Okinawa, a series of reef breaks along a seawall near American Village. The area features multiple distinct peaks—Bowls, California, Hawaiians, Hotels—each breaking over rock reef with dedicated paddle channels. The consistent windswell from October through March combines with occasional typhoon groundswells to produce fun waves in tropical water. Shallow reef means you surf around high tide and wear booties, but the warm water and welcoming community make this a Waikiki-like experience.

Sunabe Seawall surf forecast

Model forecast for swell, wind and tide.

10-Day Forecast
Today4
41
Poor
1.0m@10s
17km/h
Thu5
36
Poor
1.1m@13s
10km/h
Fri6
23
Poor
1.1m@11s
16km/h
Sat7
23
Poor
1.3m@11s
25km/h
Sun8
32
Poor
1.0m@9s
20km/h
Mon9
15
Poor
0.9m@9s
14km/h
Tue10
21
Poor
1.2m@11s
28km/h
Wed11
8
Poor
1.3m@9s
20km/h
Thu12
33
Poor
1.0m@10s
15km/h
Fri13
0
Poor
0.5m@8s
18km/h
5+ days out, less certain

Today's Conditions

Find Flights
Best session: AfternoonAM 16 km/h · PM 15 km/h · High tide at 3pm (1.7m)
Swell
1.0m
ENE(68°)
Score: 14/25
Period
10s
Mid-period swell
Score: 14/25
Wind
17km/h
ENE(77°)
Score: 23/25
Weather
25°C
0.0mm14%
First light 6:09amSunrise 6:39amSunset 5:45pmLast light 6:15pm
Windswell
0.3m@2s
Secondary
0.3m
Confidence
100%

Location & Conditions

Loading map...
Swell1.0m @10s ENE outside window
Wind17 km/h ENE offshore
SwellWind: Offshore Cross Onshore
Showing forecast for today · all day

Hourly Forecast, Tide & Strike Windows

Strike window: 6:09–6:43am · droppingStrike window: 11:07am–6:15pm · through highIdeal tide: 0.8–2.0m
6am
9am
12pm
3pm
6pm
6am
9am
12pm
3pm
6pm
6am
9am
12pm
3pm
6pm
6am
9am
12pm
3pm
6pm
6am
9am
12pm
3pm
6pm
6am
9am
12pm
3pm
6pm
6am
9am
12pm
3pm
6pm
6am
9am
12pm
3pm
6pm
6am
9am
12pm
3pm
6pm
6am
9am
12pm
3pm
6pm
°C
24°
26°
27°
26°
24°
22°
25°
26°
26°
25°
23°
25°
26°
26°
23°
22°
23°
25°
24°
22°
23°
24°
25°
26°
24°
22°
25°
27°
26°
24°
21°
21°
22°
22°
22°
20°
21°
22°
23°
21°
21°
22°
23°
23°
23°
22°
23°
24°
24°
23°
2m1.0
sec
10s
10s
10s
10s
10s
13s
13s
13s
13s
13s
11s
11s
11s
11s
11s
11s
11s
11s
11s
11s
9s
9s
9s
9s
9s
9s
9s
9s
9s
9s
11s
11s
11s
11s
11s
9s
9s
9s
9s
9s
10s
10s
10s
10s
10s
8s
8s
8s
8s
8s
swell
windkm/h
15g28
18g36
18g39
19g40
11g28
1g4
8g18
13g28
13g31
15g25
16g28
16g32
16g34
15g31
16g35
23g42
25g49
25g52
26g54
26g51
23g46
24g52
21g49
17g43
15g36
7g15
15g30
14g32
19g39
13g33
15g34
26g52
30g62
33g67
30g68
22g44
21g42
20g43
19g44
17g42
14g30
16g32
16g33
15g33
14g32
16g31
20g40
19g41
18g39
15g40
tidem
2:30am1.5m
8:57am0.5m
3:25pm1.7m
9:35pm0.7m
3:42am1.6m
9:50am0.5m
4:05pm1.8m
10:22pm0.5m
4:37am1.7m
10:33am0.5m
4:37pm1.8m
5:20am1.7m
11:11am0.5m
5:09pm1.8m
6:01am1.8m
11:47am0.6m
5:40pm1.9m
6:40am1.8m
12:18pm0.6m
6:09pm1.9m
12:44am0.0m
7:15am1.8m
12:50pm0.7m
6:38pm1.9m
1:17am0.0m
7:51am1.7m
1:18pm0.7m
7:04pm1.8m
1:48am0.0m
8:22am1.6m
1:48pm0.8m
7:36pm1.8m
2:26am0.1m
Ideal tideStrike windowDanger tideNight

Tide times today

2:30 am
High · 1.52m
8:57 am
Low · 0.51m
3:25 pm
High · 1.69m
9:35 pm
Low · 0.65m
Times shown in spot-local time.

Strike Score Breakdown

41
Poor
Components
Swell Direction0/25
Swell Size14/25
Swell Period14/25
Wind23/25
Raw Score51/100
Adjustments
🌊 Tide+5
💨 Gusty Wind-5
⚠️ Weak Component-10
Adjusted Score41/100
Confidence
Multiplier×1.00
Final Score41
🌊 Optimal tide window

Plan Your Strike

Return flights to OKA, departing today with a 5-day trip window.

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Swell Requirements

Optimal direction
W (280°)
Direction range
240° - 320°
Size range
0.8m - 2.5m
Ideal size
1.6m - 2.1m
Height multiplier
1.03×
Ideal period
12s+

Wind Requirements

Optimal direction
E (90°)
Offshore range
50° - 130°

Tide Requirements

Optimal tide
high
Optimal range
0.8m - 2m
Danger below
0.5m

Water temp

26°C

Wetsuit

Boardshorts / Rashguard

Difficulty

5/10

Crowd level

7/10

Access: Near American Village. Easy access from Naha.

Frequently Asked Questions

What kind of wave is Sunabe Seawall?

Sunabe Seawall is a reef break in Chatan, Japan, with peaks that run both left and right.

What swell works best at Sunabe Seawall?

Sunabe Seawall picks up swell from the WSW round to the NW, and it's best when it's coming straight out of the W. It starts working at around 0.8m and handles up to about 2.5m, with the sweet spot around 1.6 to 2.1m. Period matters too: aim for 12s or longer, as anything under 8s tends to be weak. SW typhoon swells also work. These are the numbers our scoring uses, so treat them as a guide rather than a promise.

What wind is offshore at Sunabe Seawall?

An E wind is dead offshore at Sunabe Seawall, and anything from the NE round to the SE keeps it clean. The morning is typically the best window, roughly 5am to 10am. Light winds from other directions can still be fine; strong offshores can make it hard to get into waves.

What tide is best at Sunabe Seawall?

Sunabe Seawall is at its best around high tide, roughly 0.8m to 2m on the local chart. Below 0.5m it gets dangerously shallow.

When is the best time of year to surf Sunabe Seawall?

The most reliable run of swell at Sunabe Seawall comes Oct to Mar. There's a second window in Jul to Sep too. Oct-Mar for NW swells. Summer typhoons possible.

How cold is the water at Sunabe Seawall?

The water at Sunabe Seawall averages around 26°C, so boardshorts or a rashguard will do. It shifts a few degrees through the year, so check the season before you pack.

Is Sunabe Seawall good for beginners?

It's more of an intermediate wave, rated 5/10 for difficulty, so newer surfers are best off sticking to the smaller days. It gets busy (crowd 7/10), so mind the pecking order. Shallow reef. Booties recommended. Only surf around high tide.

How do I get to Sunabe Seawall?

The nearest airport on our list is OKA, then it's roughly a 30-minute drive. Near American Village. Easy access from Naha.

What other surf spots are near Sunabe Seawall?

The closest breaks we track are Ikei Island (27 km), handy when Sunabe Seawall isn't working. Fun fact: it's the most southerly break we track in Japan.

Best Season

Peak: Oct, Nov, Dec, Jan, Feb, Mar

Secondary: Jul-Sep

Oct-Mar for NW swells. Summer typhoons possible.

Getting There

Airport
OKA
Drive time
30 min
Data quality
verified

Strike Log

Community Discussion