Aoshima Harbour 48 hour detailed Surf Forecast

Lat Long: 31.80° N 131.47° E

Issued: 2 pm 21 Jul 2026 (local time)

Forecast update in hr min

Today's Aoshima Harbour sea temperature is

28.2° C

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

Surf Forecasts:

How big are the waves at Aoshima Harbour today (21 Jul):

Afternoon surf: Afternoon surf (21 Jul, local time) - 2ft (0.6m), 9s period with E swell.
Evening surf: Evening surf (21 Jul, local time) - 2ft (0.6m), 9s period with E swell.

The current surf forecast for Aoshima Harbour at 10PM is: 0.6m 9s primary swell from a East direction and 0.3m 12s secondary swell from a East direction (forecast issued at 02:00pm July 21). An open ocean swell of 0.3m 3s is not directed at the surf break. The wind direction is predicted to be offshore.

Time (JST) & Date	Wave Height	Wave Period
Morning (21 Jul)	-	-
Afternoon (21 Jul)	2ft (0.6m)	9s
Evening (21 Jul)	2ft (0.6m)	9s

Table - waves today at Aoshima Harbour. (Swell directed towards the surf break)

	Short Range Forecast Mostly dry. Warm (max 30°C on Tue afternoon, min 27°C on Tue night). Wind will be generally light.
	Tue 21				Wednesday 22								Thursday 23
	12 PM	3 PM	6 PM	9 PM	12 AM	3 AM	6 AM	9 AM	12 PM	3 PM	6 PM	9 PM	12 AM	3 AM	6 AM	9 AM	12 PM	3 PM	6 PM	9 PM
Rating (10 max)	0	0	0	1	1	1	1	0	0	0	1	1	1	1	1	1	0	0	1	1
Swell Height Map See all maps
Wave Height (m) Direction Period (s)	E 9	E 9	E 9	E 9	E 9	E 11	E 11	E 11	E 10	E 10	E 10	E 10	E 10	E 10	E 10	E 10	E 10	E 10	E 10	E 10
Wave Graph
kJ	78	56	56	55	53	58	82	108	104	102	102	73	72	71	71	71	71	50	50	49
Wind (km/h)	SE	SSE	SSE	SSW	WSW	W	W	NE	ENE	E	S	SW	W	W	WNW	E	ESE	SSE	S	W
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy	cross	cross	cross	cross-off	off	off	glassy	on	on	cross-on	cross-off	off	off	cross-off	glassy	glassy	cross-on	cross	cross-off	cross-off
High Tide	10:26AM1.70m				10:41PM1.91m				11:45AM1.58m				11:25PM1.86m					1:35PM1.54m
Low Tide			4:17PM0.90m				5:27AM0.77m				5:06PM1.11m					6:41AM0.72m				6:17PM1.29m


	—	—	—	—	—	5:22	—	—	—	—	—	—	—	5:22	—	—	—	—	—	—
	—	—	7:17	—	—	—	—	—	—	—	7:16	—	—	—	—	—	—	—	7:16	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Temp °C	29	30	30	28	28	27	27	29	29	29	29	28	27	27	27	29	29	30	30	29
Feels °C	32	32	33	32	33	31	31	33	33	34	33	32	31	31	31	34	33	33	33	33
Swell 1 Height (m) Direction Period (s)	E 9	E 9	E 9	E 9	E 9	E 11	E 11	E 11	E 10	E 10	E 10	E 10	E 10	E 10	E 10	E 10	E 10	E 10	E 10	E 10
kJ	78	56	56	55	53	58	82	108	104	102	102	73	72	71	71	71	71	50	50	49
Swell 2 Height (m) Direction Period (s)	SE 8	E 14	E 13	E 13	E 12	E 8	E 8	SE 8	SE 8	SE 8	SE 8	S 7	S 7	SSW 3	—	S 7	SE 10	SE 10	SE 10	SSW 4
kJ	3	14	14	28	44	21	21	2	2	2	2	1	1	1	—	4	4	4	4	4
Swell 3 Height (m) Direction Period (s)	E 14	SSE 8	SE 8	SE 8	S 3	S 3	S 3	—	S 7	S 7	S 7	SE 8	SE 7	S 7	S 7	SE 20	S 7	SE 19	S 7	S 7
kJ	4	6	3	3	2	1	1	—	1	1	1	2	2	1	1	15	4	15	1	1
Wind waves Height (m) Direction Period (s)	—	—	S 3	S 3	SSW 3	SSW 4	SSW 3	—	—	—	WSW 7	SSW 2	SSW 3	—	SW 3	—	—	—	SSW 3	SSW 4
kJ	—	—	1	2	8	5	1	—	—	—	5	1	1	—	2	—	—	—	4	10
Nearest Offshore or Glassy	Osaki Point Shikoku	Ko-Chan (Hedo Point) Okinawa	Osaki Point Shikoku	Aoshima Harbour Kyu Shu	Aoshima Harbour Kyu Shu	Aoshima Harbour Kyu Shu	Aoshima Harbour Kyu Shu	Sosanji Rivermouth Kyu Shu	Osaki Point Shikoku	Yona Bay Okinawa	Aoshima Harbour Kyu Shu	Aoshima Harbour Kyu Shu	Aoshima Harbour Kyu Shu	Aoshima Harbour Kyu Shu	Aoshima Harbour Kyu Shu	Aoshima Harbour Kyu Shu	Yona Bay Okinawa	Yona Bay Okinawa	Aoshima Harbour Kyu Shu	Aoshima Harbour Kyu Shu
Rating (10 max)	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1
Distance (km)	312	630	312	0	0	0	0	3	312	644	0	0	0	0	0	0	644	644	0	0
Best forecast wave conditions in Kyu Shu				Kojima	Okuragahama	Okuragahama	Okuragahama	Cape Toi			Kojima	Okuragahama	Okuragahama	Kanegahama	Okuragahama	Okuragahama			Aoshima	Kanegahama
Rating (10 max)				1	1	1	1	1			1	1	1	1	1	1			1	1
Best forecast wave conditions in Japan	Susuki Shizuoka	Kudaka Okinawa	Kudaka Okinawa	Tsurigasaki Surfing Beach (Tokyo 2020) Chiba	Tsurigasaki Surfing Beach (Tokyo 2020) Chiba	Tsurigasaki Surfing Beach (Tokyo 2020) Chiba	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Kudaka Okinawa	Kudaka Okinawa	Castles Okinawa	Suruga Bay Shizuoka	Tsurigasaki Surfing Beach (Tokyo 2020) Chiba	Katagai Chiba	Kuminatu Chiba	Kuminatu Chiba	Mera Chiba	Mera Chiba	Mera Chiba	Kuminatu Chiba
Rating (10 max)	1	1	1	2	2	2	1	1	1	1	1	1	1	1	2	1	1	1	1	1
Header Global	Papatowai New Zealand	Papatowai New Zealand	Asu Indonesia	Cape St Martin South Africa	Chameau Mauritius	Sea Vista South Africa	Cobblestones Australia	Cobblestones Australia	Cobblestones Australia	Cobblestones Australia	Cobblestones Australia	Gas Bay Australia	Papa Tangaroa Chile	Viri Inga O Tuki Chile	Cathedral Rock Australia	Cobblestones Australia	Boulders Samoa	Cyclops Australia	Brak River South Africa	Benkunqut Indonesia
Rating (10 max)	5	5	4	4	4	5	5	5	6	6	5	5	8	7	9	5	4	5	4	4

Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)

Latest Updates

Ben Mondy

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Aoshima Harbour surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.

Aoshima Harbour 48 hour detailed Surf Forecast

How big are the waves at Aoshima Harbour today (21 Jul):

Short Range Forecast

Latest Updates

Summer School: The Timeline of The Boardshort

How Our WaveFinder Tool Makes Forecasting Easier Than Ever Before

The Five Best Forecasts For International Surfing Day 2026

Best Surf Travel Deals & Discounts For 2026 To Help Make Surf Travel Cheaper

Let Our Surf Alerts Do All Your Forecast Heavy Lifting

FREE! Surf-Forecast.com widget for your website