Surf spot

Aoshima Reef

Forecast conditions and map view for Aoshima Reef in Japan, Kyushu. Open the interactive surf map to inspect wind, waves, and nearby spots.

Country: Japan, Kyushu
Coordinates: 31.8027, 131.4779

Metric
Metric	15:00	18:00	21:00	00:00	03:00	06:00	09:00	12:00	15:00	18:00	21:00	00:00	03:00	06:00	09:00	12:00	15:00	18:00	21:00	00:00	03:00	06:00	09:00	12:00	15:00	18:00	21:00	00:00	03:00	06:00	09:00	12:00	15:00	18:00	21:00	00:00	03:00	06:00	09:00	12:00	15:00	18:00	21:00	00:00	03:00	06:00	09:00	12:00	15:00	18:00	21:00	00:00	03:00	06:00	09:00	12:00
Wave height (m)	0.7	0.8	0.8	0.8	0.8	0.8	0.7	0.8	0.9	0.9	1	0.9	0.9	0.9	1	1.1	1.2	1.3	1.3	1.3	1.3	1.3	1.2	1.2	1.2	1.2	1.2	1.1	1.1	1.1	1.1	1	1	0.9	0.9	0.9	0.9	0.9	0.8	0.8	0.7	0.8	0.8	1.3	1.5	1.8	2	2.1	2.3	2.4	2.3	3	3.4	3.2	3.2	3.3
Wave direction	E	E	E	E	E	E	E	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	E	ENE	E	E	E	E	E	E	E	E	E	ESE	ESE	ESE	ESE
Wave period (s)	9.3	9.2	8.8	8.7	8.6	8.5	10.3	5.3	5.3	5.3	5.3	5.3	5.5	5.5	5.8	6.1	6.6	7.3	7.4	7.4	7.4	7.4	7.5	7.5	7.5	7.6	7.6	7.8	7.8	7.8	7.8	7.5	7.7	6.9	6.8	7	7	6.8	6.5	6.3	7.3	7	5.8	6.3	6.7	6.9	7	7.4	7.5	7.6	7.6	9.3	9.9	9.3	9.3	9.6
Wave energy (kJ)	75	102	104	106	98	102	103	32	43	49	52	48	52	53	64	90	121	177	185	185	179	174	173	170	164	155	155	151	147	140	137	123	127	84	79	78	71	68	54	52	53	64	43	136	210	315	392	492	616	665	611	1581	2289	1746	1835	2011
Wind speed (km/h)	1.8	1.8	3.4	6.4	8.1	10.3	6.6	3.3	2.6	1.5	2.6	3.4	8.8	7	4.8	5.8	4.2	3.4	2.9	1.8	7.2	4.9	4.2	2	4.1	3.4	3.1	4.1	7.2	5.9	4	4.4	3	2.9	4.1	6.6	10.1	12.1	8.3	6.1	6.9	8.1	8.9	13.8	13.7	13	13.3	13.4	15	17.7	18.2	19.9	20.2	20.1	22.1	24.7
Wind direction	NGlassy	NGlassy	NNWGlassy	ENECross-off	ESECross	ESECross-on	ESECross-on	EGlassy	NEGlassy	NWGlassy	NWGlassy	ENEGlassy	ECross	SECross-on	SSWGlassy	SSWOnshore	SSWGlassy	WSWGlassy	WSWGlassy	EGlassy	ECross	SSWGlassy	WNWGlassy	NWGlassy	WNWGlassy	NNWGlassy	NEGlassy	NEGlassy	ECross	ENECross	EGlassy	NEGlassy	NNEGlassy	NGlassy	NNEGlassy	NECross-off	ENECross-off	ENECross-off	NECross-off	NECross-off	NECross-off	NNECross-off	NNECross-off	NECross-off	NECross-off	NECross-off	ENECross-off	ENECross-off	ENECross-off	ENECross-off	NECross-off	NECross-off	NECross-off	NECross-off	NECross-off	NECross-off

Aoshima Reef (Kyushu, Japan) is a scenic, reef-bottom surf spot just off Aoshima Island near Miyazaki on the east coast of Kyushu. It’s known for its tropical-looking setting, warm water, and the famous “Devil’s Washboard” rock formations that make the area visually unique.

What it’s like

Wave type: Reef break / sometimes a mix of reef and sand influence depending on swell and conditions
Best for: Intermediate to advanced surfers when it’s working well
Wave character: Can offer clean, punchy, faster waves with some hollow sections on the right swell
Crowds: Popular because it’s a well-known surf area and close to town

Conditions

Works best with southeast to south swell and favorable winds
Typhoons can light it up with powerful, high-quality surf
Tends to be more consistent than many other Japanese spots during the right season
Tide and reef exposure matter, so timing is important

Local notes

The reef and shallow sections can be unforgiving, so it’s not ideal for beginners
Water is generally warm compared with northern Japan
The area around Aoshima is beautiful and relaxed, making it a favorite for surf trips as well as sightseeing

Overall

Aoshima Reef is a classic Kyushu surf destination: scenic, warm, and capable of delivering fast, memorable reef waves when swell, tide, and wind line up.