Mera Surf Forecast

/ Chiba (19 surf breaks) /

Japan (129 surf breaks)

Surf Forecasts:

Mera surfForecast / Chiba / Japan

48hr Weather and Surf, issued 2 am Friday 19 Sep 2025 JST

Forecast update in hr min s Forecast update imminent

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

Today's Mera sea temperature is 26.5° C
(Which is slightly warmer than usual)

How big are the waves at Mera today?

The current surf forecast for Mera at 7AM is: 0.4m 10s primary swell from a Southeast direction and 0.4m 6s secondary swell from a Southwest direction (forecast issued at 02:00am September 19). An open ocean swell of 1.5m 6s is not directed at the surf break. The wind direction is predicted to be offshore.

Time (JST) & Date	Wave Height	Wave Period
Morning (19 Sep)	1.5ft (0.4m)	6s
Afternoon (19 Sep)	0.5ft (0.2m)	12s
Evening (19 Sep)	4.5ft (1.3m)	7s

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

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Friday 19								Saturday 20								Sunday 21
	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	12 PM	3 PM	6 PM	9 PM
Rating (10 max)	0	0	0	0	0	0	2	2	1	0	0	0	1	0	0	0	0	0	0	0	0	1	0	0
Swell Height Map See all maps
Wave Height (m) & direction (?)	SW	SW	SE	SW	SSE	ESE	E	E	E	SE	SE	SE	E	E	ESE	E	E	E	E	E	SW	SW	SW	SW
Period(s) (?)	6	6	10	6	9	12	7	7	6	10	9	10	6	6	11	8	8	9	9	9	6	6	6	6
Wave Graph (?)
kJ (?)	62	35	24	13	8	14	215	181	89	25	23	23	44	45	45	90	138	145	150	122	100	89	72	52
Wind (km/h)	NE	NE	NE	NE	NE	NE	NE	NE	NE	NE	ENE	E	E	SE	SSE	SSW	SW	SW	SW	WSW	WNW	NNE	ENE	ENE
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	off	off	off	off	off	off	off	off	off	off	off	cross- off	cross- off	cross	cross- on	cross- on	on	on	on	on	cross- on	cross- off	cross- off	off
High Tide / height (m)		2:13AM 1.35					4:02PM 1.41				3:06AM 1.44				4:18PM 1.44				3:50AM 1.50				4:34PM 1.48
Low Tide / height (m)	9:04PM 0.97				9:05AM 0.29				9:31PM 0.81				9:41AM 0.29				9:59PM 0.67				10:12AM 0.33

	Friday 19								Saturday 20								Sunday 21
Sunrise	-	-	5:24	-	-	-	-	-	-	-	5:26	-	-	-	-	-	-	-	5:26	-	-	-	-	-
Sunset	-	-	-	-	-	5:43	-	-	-	-	-	-	-	5:40	-	-	-	-	-	-	-	5:39	-	-

Rain (mm)	1	2	1	2	-	-	-	-	-	-	-	-	-	-	-	1	-	-	-	-	-	-	-	-
Temp. °C	24	23	22	20	21	22	23	23	23	23	23	25	25	26	26	26	26	26	26	27	27	28	26	23
Feels °C (?)	23	22	19	16	19	20	21	22	22	22	22	25	26	27	27	27	25	24	23	25	28	30	22	18

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 The wind is still offshore at Mera (light winds from the NE at Tateyama 9 km from Mera). 0.4m 6s windswell from the SW with a 0.2m 10s swell from the ESE. 2 swells combining to make bigger set waves.
53 minutes ago Mera

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Actual: 53 min ago

13 km/h

Offshore

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