Aha Rivermouth 48 hour detailed Surf Forecast

Lat Long: 26.72° N 128.30° E

Issued: 8 pm 21 Jul 2026 (local time)

Forecast update in hr min

Today's Aha Rivermouth sea temperature is

28.6° C

Aha Rivermouth 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 Aha Rivermouth today (22 Jul):

Morning surf: Morning surf (22 Jul, local time) - 1.5ft (0.5m), 9s period with E swell.
Afternoon surf: Afternoon surf (22 Jul, local time) - 1.5ft (0.4m), 12s period with NE swell.
Evening surf: Evening surf (22 Jul, local time) - 1.5ft (0.4m), 11s period with ENE swell.

The current surf forecast for Aha Rivermouth at 4AM is: 0.5m 9s primary swell from a East direction (forecast issued at 08:00pm July 21). An open ocean swell of 0.4m 6s is not directed at the surf break. The wind direction is predicted to be glassy.

Time (JST) & Date	Wave Height	Wave Period
Morning (22 Jul)	1.5ft (0.5m)	9s
Afternoon (22 Jul)	1.5ft (0.4m)	12s
Evening (22 Jul)	1.5ft (0.4m)	11s

Table - waves today at Aha Rivermouth. (Swell directed towards the surf break)

	Short Range Forecast Light rain (total 2mm), mostly falling on Wed morning. Warm (max 29°C on Tue night, min 28°C on Tue night). Wind will be generally light.
	Tue 21		Wednesday 22								Thursday 23
	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	0	1	1	0	0	0	0	0	0	0	0	0	0	0	0
Swell Height Map See all maps
Wave Height (m) Direction Period (s)	E 9	E 9	E 9	E 9	E 9	E 9	E 9	NE 12	E 10	ENE 11	ENE 11	ENE 11	ENE 10	ENE 10	ENE 10	ENE 10	ENE 10	ENE 10
Wave Graph
kJ	42	42	42	41	41	41	41	41	47	49	47	91	95	82	80	78	56	56
Wind (km/h)	NE	ESE	SSE	SSW	W	E	ESE	ESE	ESE	SE	SE	SE	ESE	ESE	ESE	ESE	ESE	SE
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy	glassy	glassy	cross-off	glassy	glassy	glassy	cross-on	cross-on	cross	cross	cross	cross	cross-on	cross	cross	cross	cross	cross
High Tide			11:36PM1.77m					12:35PM1.40m				00:23AM1.70m				2:37PM1.34m
Low Tide	5:13PM0.86m					6:30AM0.78m			5:55PM1.04m					7:49AM0.79m				6:57PM1.19m


	—	—	—	5:45	—	—	—	—	—	—	—	5:46	—	—	—	—	—	—
	7:20	—	—	—	—	—	—	—	7:20	—	—	—	—	—	—	—	7:19	—
mm	—	—	—	—	—	—	1	—	—	—	—	—	—	—	—	—	—	—
Temp °C	29	29	28	28	28	28	29	29	29	29	28	28	28	28	29	29	29	29
Feels °C	35	34	33	33	34	34	34	32	32	33	33	33	33	31	32	32	33	33
Swell 1 Height (m) Direction Period (s)	E 9	E 9	E 9	E 9	E 9	E 9	E 9	E 9	E 10	ENE 11	ENE 11	ENE 11	ENE 10	ENE 10	ENE 10	ENE 10	ENE 10	ENE 10
kJ	42	42	42	41	41	41	41	41	47	49	47	91	95	82	80	78	56	56
Swell 2 Height (m) Direction Period (s)	W 7	W 7	W 6	W 6	W 6	W 6	ENE 13	NE 12	NE 12	ENE 8	ENE 8	W 6	W 6	W 6	ESE 10	ESE 10	ESE 10	ESE 10
kJ	16	15	13	13	12	7	33	39	37	23	13	3	3	3	10	10	10	10
Swell 3 Height (m) Direction Period (s)	SW 7	SW 7	SW 7	SW 6	ENE 13	ENE 13	W 6	W 6	W 6	W 7	W 6	E 10	E 10	SE 10	W 6	W 5	S 7	ESE 3
kJ	7	7	7	7	18	17	7	6	3	4	3	8	8	4	2	2	4	1
Wind waves Height (m) Direction Period (s)	—	—	—	—	—	—	—	—	—	—	—	—	—	—	ESE 2	ESE 3	ESE 3	SE 3
kJ	—	—	—	—	—	—	—	—	—	—	—	—	—	—	1	1	1	2
Nearest Offshore or Glassy	Rocky Point Okinawa	Rocky Point Okinawa	Rocky Point Okinawa	Rocky Point Okinawa	Aha Rivermouth Okinawa	Aha Rivermouth Okinawa	Yona Bay Okinawa	Yona Bay Okinawa	Yona Bay Okinawa	Yona Bay Okinawa	Yona Bay Okinawa	Yona Bay Okinawa	Yona Bay Okinawa	Yona Bay Okinawa	Yona Bay Okinawa	Yona Bay Okinawa	Yona Bay Okinawa	Yona Bay Okinawa
Rating (10 max)	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1
Distance (km)	12	12	12	12	0	0	12	12	12	12	12	12	12	12	12	12	12	12
Best forecast wave conditions in Okinawa	Kudaka	Kudaka	Kudaka	Castles	Kudaka	Castles	Castles	Castles	Castles	Yona Bay	Ko-Chan (Hedo Point)	Aja	Aja	Yona Bay	Yona Bay	Aja	Aja	Aja
Rating (10 max)	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1
Best forecast wave conditions in Japan	Osaki Point Shikoku	Torami Chiba	Tsurigasaki Surfing Beach (Tokyo 2020) Chiba	Tsurigasaki Surfing Beach (Tokyo 2020) Chiba	Niyodo Rivermouth Shikoku	Tsurigasaki Surfing Beach (Tokyo 2020) Chiba	Osaki Point Shikoku	Castles Okinawa	Okuragahama Kyu Shu	Suruga Bay Shizuoka	Tsurigasaki Surfing Beach (Tokyo 2020) Chiba	Tsurigasaki Surfing Beach (Tokyo 2020) Chiba	Malibu Chiba	Mera Chiba	Mera Chiba	Susuki Shizuoka	Mera Chiba	Kuminatu Chiba
Rating (10 max)	1	2	2	2	1	2	1	1	1	1	1	1	2	2	1	1	1	1
Header Global	Asu Indonesia	Cape St Martin South Africa	Albatross South Africa	Sea Vista South Africa	Cobblestones Australia	Cobblestones Australia	Cobblestones Australia	Gas Bay Australia	Cobblestones Australia	Gas Bay Australia	Cobblestones Australia	Cathedral Rock Australia	Cathedral Rock Australia	Viri Inga O Tuki Chile	Aufaga Village Samoa	Cobblestones Australia	Boneyards South Africa	Albatross South Africa
Rating (10 max)	4	4	4	5	5	5	6	6	5	5	5	8	5	6	4	4	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

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Aha Rivermouth 48 hour detailed Surf Forecast

How big are the waves at Aha Rivermouth today (22 Jul):

Short Range Forecast

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