Amatu Surf Forecast

/ Chiba (19 surf breaks) /

Japan (129 surf breaks) / Lat Long: (35.12° N 140.19° E)

Surf Forecasts:

Amatu surfForecast / Chiba / Japan

48hr Weather and Surf, issued 2 pm Sunday 16 Nov 2025 JST

Forecast update in hr min s Forecast update imminent

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

Today's Amatu sea temperature is 20.2° C
(Which is 1.1°C colder than average for this time of year)

How big are the waves at Amatu today?

The current surf forecast for Amatu at 6PM is: 0.7m 6s primary swell from a Southeast direction and 0.4m 9s secondary swell from a East-southeast direction, 0.1m 7s secondary swell from a Southwest direction (forecast issued at 02:00pm November 16). The wind direction is predicted to be cross-shore.

Time (JST) & Date	Wave Height	Wave Period
Morning (16 Nov)	-	-
Afternoon (16 Nov)	2.5ft (0.7m)	6s
Evening (16 Nov)	3ft (0.9m)	6s

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

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Sunday 16				Monday 17								Tuesday 18								Wednesday 19
	12 PM	3 PM	6 PM	9 PM	0 AM	3 AM	6 AM	9 AM	12 PM	3 PM	6 PM	9 PM	0 AM	3 AM	6 AM	9 AM	12 PM	3 PM	6 PM	9 PM	0 AM	3 AM	6 AM	9 AM
Rating (10 max)	0	0	0	0	0	1	0	0	0	0	0	0	0	0	1	0	0	0	2	1	1	0	1	2
Swell Height Map See all maps
Wave Height (m) & direction (?)	ESE	ESE	SE	SE	SE	SE	SE	SE	SE	SE	SW	SE	ESE	SE	SW	SW	NE	NE	NE	SW	SW	ENE	NE	NE
Period(s) (?)	10	6	6	6	7	6	7	7	7	7	6	8	8	7	7	7	6	6	6	8	8	7	6	6
Wave Graph (?)
kJ (?)	32	35	38	54	73	91	124	149	153	151	296	37	23	14	128	84	116	97	103	113	71	81	54	103
Wind (km/h)	E	E	E	ESE	S	WNW	WSW	SW	SW	SW	WSW	WSW	WNW	NW	NE	NE	NE	NE	NNE	NNE	N	N	NNE	NNE
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross	cross	cross	cross- on	on	cross- off	cross	cross- on	cross	cross	cross	cross	cross- off	off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	off	cross- off	cross- off	cross- off
High Tide / height (m)		2:00PM 1.40					3:01AM 1.28			2:26PM 1.43					3:46AM 1.34			2:51PM 1.45					4:26AM 1.38
Low Tide / height (m)				8:42PM 0.51				8:29AM 0.75					9:12PM 0.36				9:08AM 0.79				9:40PM 0.25

	Sunday 16				Monday 17								Tuesday 18								Wednesday 19
Sunrise	-	-	-	-	-	-	-	6:13	-	-	-	-	-	-	-	6:15	-	-	-	-	-	-	-	6:16
Sunset	-	4:32	-	-	-	-	-	-	-	4:31	-	-	-	-	-	-	-	4:31	-	-	-	-	-	-

Rain (mm)	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	1	1	1	2	-	-	-	-
Temp. °C	15	15	16	17	17	16	15	17	19	19	18	17	16	15	15	14	12	11	12	9	9	9	8	9
Feels °C (?)	13	13	14	16	17	16	15	14	13	13	12	11	13	13	13	11	8	6	10	4	6	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)

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.