Amatu 48 hour detailed Surf Forecast

Lat Long: 35.12° N 140.19° E

Issued: 2 am 10 Oct 2026 (local time)

Forecast update in hr min

Today's Amatu sea temperature is

25.4°C

Amatu 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 Amatu today (10 Oct):

Morning surf: Morning surf (10 Oct, local time) - 7ft (2.2m), 13s period with ESE swell.
Afternoon surf: Afternoon surf (10 Oct, local time) - 8ft (2.5m), 12s period with ESE swell.
Evening surf: Evening surf (10 Oct, local time) - 8ft (2.5m), 11s period with ESE swell.

The current surf forecast for Amatu at 6AM is: 1.9m 13s primary swell from a East-southeast direction and 1.1m 7s secondary swell from a East direction, 1.3m 7s secondary swell from a East direction (forecast issued at 02:00am October 10). The wind direction is predicted to be cross-offshore and the swell rating is 4.

Time (JST) & Date	Wave Height	Wave Period
Morning (10 Oct)	7ft (2.2m)	13s
Afternoon (10 Oct)	8ft (2.5m)	12s
Evening (10 Oct)	8ft (2.5m)	11s

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

	Short Range Forecast Mostly dry. Warm (max 23°C on Sun morning, min 17°C on Sat night). Wind will be generally light.
	Saturday 10								Sunday 11								Monday 12
	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	12 AM	3 AM	6 AM	9 AM	12 PM	3 PM	6 PM	9 PM
Rating (10 max)	4	4	4	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	2	3	3
Swell Height Map See all maps
Wave Height (m) Direction Period (s)	ESE 14	ESE 14	ESE 13	ESE 13	ESE 12	ESE 12	ESE 12	ESE 11	ESE 11	ESE 11	E 10	ESE 11	E 11	E 11	E 10	E 10	SE 16	ENE 10	SE 14	SE 14	SE 14	SE 14	SE 14	SE 14
Wave Graph
kJ	1752	1541	1267	1674	1788	1807	1747	1695	1695	1599	908	1375	1459	1397	1109	976	991	1155	998	957	990	961	1033	990
Wind (km/h)	NE	NE	NNE	NNE	NE	NE	NE	NNE	N	N	N	NNE	NE	NE	NE	NNE	NNE	NNE	NNE	NE	NE	NE	NE	NNE
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off
High Tide			4:05AM1.54m				4:04PM1.56m				4:47AM1.55m				4:25PM1.58m				5:26AM1.52m				4:47PM1.58m
Low Tide	9:53PM0.46m				10:05AM0.53m				10:25PM0.32m				10:35AM0.61m				10:55PM0.23m				11:04AM0.69m


	—	5:39	—	—	—	—	—	—	—	5:41	—	—	—	—	—	—	—	5:41	—	—	—	—	—	—
	—	—	—	—	—	5:12	—	—	—	—	—	—	—	5:09	—	—	—	—	—	—	—	5:08	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Temp °C	20	20	19	21	22	22	21	20	19	18	17	20	23	22	20	20	19	18	18	21	22	22	20	19
Feels °C	19	19	18	19	19	20	20	19	18	17	16	19	21	20	19	19	18	17	17	18	19	19	17	16
Swell 1 Height (m) Direction Period (s)	ESE 14	ESE 14	ESE 13	ESE 13	ESE 12	ESE 12	ESE 12	ESE 11	ESE 11	ESE 11	E 10	ESE 11	E 11	E 11	E 10	E 10	E 10	E 10	E 10	E 10	SE 14	SE 14	SE 14	SE 14
kJ	1752	1541	1267	1674	1788	1807	1747	1695	1695	1599	908	1375	1459	1397	1109	976	867	847	755	745	990	961	1033	990
Swell 2 Height (m) Direction Period (s)	SE 18	—	E 7	—	—	—	—	E 16	—	SE 12	SE 12	SE 16	SE 21	SE 19	SE 18	SE 16	SE 16	SE 15	SE 14	SE 14	—	ENE 13	E 13	ENE 13
kJ	80	—	127	—	—	—	—	5	—	539	480	10	68	296	528	834	991	936	998	957	—	18	4	18
Swell 3 Height (m) Direction Period (s)	NE 9	—	—	—	—	—	—	—	—	—	SE 16	SE 19	SE 18	—	E 15	—	—	—	—	—	—	—	—	—
kJ	14	—	—	—	—	—	—	—	—	—	10	15	12	—	4	—	—	—	—	—	—	—	—	—
Wind waves Height (m) Direction Period (s)	—	NE 9	E 7	NE 9	NE 9	NE 9	—	—	—	—	—	NNE 5	NNE 5	—	—	—	—	ENE 10	NNE 5	ENE 9	E 9	E 9	ENE 9	ENE 9
kJ	—	14	177	3	3	3	—	—	—	—	—	57	36	—	—	—	—	1155	56	923	705	690	705	757
Nearest Offshore or Glassy	Amatu Chiba	Amatu Chiba	Amatu Chiba	Uchiboso Chiba	Mera Chiba	Uchiboso Chiba	Uchiboso Chiba	Kamogawa Chiba	Onjuku Chiba	Big Ben Chiba	Big Ben Chiba	Onjuku Chiba	Osaki Kanagawa	Mera Chiba	Mera Chiba	Big Ben Chiba	Big Ben Chiba	Big Ben Chiba	Uchiboso Chiba	Uchiboso Chiba	Mera Chiba	Uchiboso Chiba	Uchiboso Chiba	Uchiboso Chiba
Rating (10 max)	4	4	4	1	4	2	2	4	4	4	4	4	1	4	4	4	4	4	2	3	4	2	3	2
Distance (km)	0	0	0	35	40	35	35	8	16	6	6	16	60	40	40	6	6	6	35	35	40	35	35	35
Best forecast wave conditions in Chiba	Mera	Mera	Mera	Mera	Mera	Mera	Mera	Mera	Mera	Kamogawa	Katagai	Onjuku		Mera	Mera	Mera	Kamogawa	Mera	Mera	Mera	Mera	Mera	Uchiboso	Uchiboso
Rating (10 max)	4	4	4	4	4	4	4	4	4	4	4	4		4	4	4	4	4	4	4	4	4	3	2
Best forecast wave conditions in Japan	Omaezaki Shizuoka	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Omaezaki Shizuoka	Omaezaki Shizuoka	Mera Chiba	Omaezaki Shizuoka	Omaezaki Shizuoka	Omaezaki Shizuoka	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Akabane Long Beach Shizuoka	Mera Chiba	Mera Chiba	Omaezaki Shizuoka	Omaezaki Shizuoka	Akabane Long Beach Shizuoka	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku	Suruga Bay Shizuoka	Mera Chiba	Niyodo Rivermouth Shikoku	Niyodo Rivermouth Shikoku
Rating (10 max)	4	4	4	4	4	4	4	4	4	4	4	4	3	4	4	4	4	4	4	4	4	4	4	4
Header Global	Hullets Reef South Africa	Boneyards South Africa	Boneyards South Africa	Ahijedero Mexico	Cathedral Rock Australia	Asu Indonesia	Pascuales Mexico	Pascuales Mexico	Ethel Wreck Australia	Easter Reef Australia	Pascuales Mexico	Luna Park Australia	Easter Reef Australia	Luna Park Australia	Easter Reef Australia	Ahijedero Mexico	Injidup Carpark Australia	Gas Bay Australia	Cow Bombie Australia	Cow Bombie Australia	Cobblestones Australia	Bancoora Australia	Benkunqut Indonesia	Bancoora Australia
Rating (10 max)	5	5	5	4	5	4	5	6	5	7	9	9	9	8	8	4	5	6	6	5	5	6	5	5

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

Six Sun-Soaked Summer Surf Spots: Backed by 20 years of Swell and Wind Stats (and with our 20% Summer Subscription Sale)

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 Amatu 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.

Amatu 48 hour detailed Surf Forecast

How big are the waves at Amatu today (10 Oct):

Short Range Forecast

Latest Updates

Surf-Forecast Now Has Webcams

Road Testing the new Db Surf Roller Pro

Summer's Short. Life Is Long.

Roadsurfing in the Basque country

Six Sun-Soaked Summer Surf Spots: Backed by 20 years of Swell and Wind Stats (and with our 20% Summer Subscription Sale)

FREE! Surf-Forecast.com widget for your website