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 2 pm Saturday 30 Aug 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 26.8° C
(Which is normal for this time of year)

How big are the waves at Big Ben today?

The current surf forecast for Big Ben at 5PM is: 0.6m 9s primary swell from a East-southeast direction and 0.4m 10s secondary swell from a Southeast direction, 0.6m 4s secondary swell from a South-southwest direction (forecast issued at 02:00pm August 30). The wind direction is predicted to be cross-shore.

Time (JST) & Date	Wave Height	Wave Period
Morning (30 Aug)	-	-
Afternoon (30 Aug)	2ft (0.6m)	9s
Evening (30 Aug)	2ft (0.6m)	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

	Saturday 30				Sunday 31								Monday 01								Tuesday 02
	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	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
Swell Height Map See all maps
Wave Height (m) & direction (?)	ESE	ESE	ESE	E	SE	SE	E	E	E	E	E	E	E	E	E	E	E	SE	SE	E	ESE	ESE	ESE	SE
Period(s) (?)	10	9	9	9	10	10	9	9	9	9	9	9	9	8	9	9	9	9	9	10	10	10	10	10
Wave Graph (?)
Energy (?)	104	109	104	106	100	100	77	77	66	70	67	65	64	64	67	65	72	71	82	90	97	96	97	118
Wind (km/h)	SSW	SSW	SW	SW	SW	SW	WSW	E	ESE	SE	SSE	SSW	SW	SW	SW	SSW	SSW	SSW	SSW	SSW	SW	SW	SW	SW
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross	cross	cross	cross	cross	glass	glass	cross- on	on	on	cross- on	cross- on	cross	cross	cross	cross	cross	cross	cross	cross	cross	cross	cross	cross
High Tide / height (m)				7:39PM 1.47					10:35AM 1.12			8:00PM 1.42								8:23PM 1.35
Low Tide / height (m)		1:36PM 0.94					3:11AM 0.49			1:31PM 1.07					4:34AM 0.52									6:27AM 0.50

	Saturday 30				Sunday 31								Monday 01								Tuesday 02
Sunrise	-	-	-	-	-	-	5:09	-	-	-	-	-	-	-	5:11	-	-	-	-	-	-	-	5:11	-
Sunset	-	-	6:09	-	-	-	-	-	-	-	6:08	-	-	-	-	-	-	-	6:07	-	-	-	-	-

Rain (mm)	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Temp. °C	31	31	28	27	27	26	26	29	30	30	28	27	26	26	26	29	30	29	27	27	27	26	26	29
Feels °C (?)	34	34	32	31	32	31	32	33	33	34	33	32	31	31	31	32	31	30	28	29	29	27	28	30

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

Recent Eyeball Surf Reports for Chiba

Wind Update Continuing clean conditions at Big Ben (calm at Ogino wx 47 km from Big Ben). 0.7m 10s swell from the ESE with a 0.4m 3s local chop from the SSW. 2 swells combining to make bigger set waves.
39 minutes ago Big Ben

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47 km away, 39 min ago

3 km/h

0.0

26.8

Air / Water (°C)

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