Big Ben Surf Forecast

/ Chiba (19 surf breaks) /

Japan (129 surf breaks) / Lat Long: (35.12° N 140.12° E)

Surf Forecasts:

Big Ben surfForecast / Chiba / Japan

48hr Weather and Surf, issued 8 am Thursday 30 Oct 2025 JST

Forecast update in hr min s Forecast update imminent

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

Today's Big Ben sea temperature is 23.8° C
(Which is 1.3°C warmer than normal for this time of year)

How big are the waves at Big Ben today?

The current surf forecast for Big Ben at 11AM is: 1.9m 8s primary swell from a East direction and 1.3m 6s secondary swell from a Northeast direction (forecast issued at 08:00am October 30). The wind direction is predicted to be cross-offshore.

Time (JST) & Date	Wave Height	Wave Period
Morning (30 Oct)	4.5ft (1.4m)	8s
Afternoon (30 Oct)	6.5ft (2.0m)	9s
Evening (30 Oct)	7.5ft (2.3m)	9s

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

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Thursday 30						Friday 31								Saturday 01								Sun 02
	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	12 PM	3 PM	6 PM	9 PM	0 AM	3 AM
Rating (10 max)	1	0	2	1	3	3	4	3	3	3	2	0	0	0	0	0	2	3	4	4	3	3	3	2
Swell Height Map See all maps
Wave Height (m) & direction (?)	NE	ESE	E	E	E	E	E	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	E	E
Period(s) (?)	7	8	8	9	9	9	10	10	10	10	10	10	10	8	9	10	10	10	10	10	10	10	10	10
Wave Graph (?)
kJ (?)	240	277	499	613	880	932	964	768	712	742	725	739	833	1179	1502	1463	1224	951	850	754	694	735	644	495
Wind (km/h)	NNE	NNE	NNE	NE	NNE	NNE	NNE	NNE	NNE	NE	NE	ENE	ESE	SSE	SSW	SW	WSW	WSW	W	SW	SSE	SW	WSW	WSW
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross- off	cross- off	cross- off	cross	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- on	cross- on	cross- on	cross- on	cross	cross- off	cross- off	glass	glass	glass	glass	cross- off	cross- off
High Tide / height (m)				1:16PM 1.31			11:04PM 1.12					1:45PM 1.35				1:09AM 1.19				2:10PM 1.39				2:17AM 1.30
Low Tide / height (m)	4:52AM 0.55					7:24PM 1.05				6:23AM 0.59				7:55PM 0.88				7:29AM 0.61				8:24PM 0.70

	Thursday 30						Friday 31								Saturday 01								Sun 02
Sunrise	5:56	-	-	-	-	-	-	-	5:58	-	-	-	-	-	-	-	5:58	-	-	-	-	-	-	-
Sunset	-	-	-	4:47	-	-	-	-	-	-	-	4:46	-	-	-	-	-	-	-	4:45	-	-	-	-

Rain (mm)	-	-	-	-	-	-	-	-	-	-	-	-	2	14	35	5	-	-	-	-	-	-	-	-
Temp. °C	14	16	17	17	16	15	15	15	15	16	19	20	19	20	21	21	19	19	20	20	19	18	18	17
Feels °C (?)	9	10	12	12	12	12	12	12	12	13	16	18	17	17	16	15	15	17	20	20	19	18	15	14

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 Big Ben 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.