Shida Surf Forecast

/ Chiba (19 surf breaks) /

Japan (129 surf breaks) / Lat Long: (35.33° N 140.40° E)

Surf Forecasts:

Shida surfForecast / Chiba / Japan

48hr Weather and Surf, issued 8 pm Saturday 13 Sep 2025 JST

Forecast update in hr min s Forecast update imminent

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

Today's Shida sea temperature is 27.4° C
(Which is 1.4°C warmer than normal for this time of year)

How big are the waves at Shida today?

The current surf forecast for Shida at 2AM is: 0.3m 10s primary swell from a Southeast direction and 0.4m 7s secondary swell from a Northeast direction (forecast issued at 08:00pm September 13). An open ocean swell of 1.5m 6s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (JST) & Date	Wave Height	Wave Period
Morning (14 Sep)	5ft (1.6m)	7s
Afternoon (14 Sep)	4.5ft (1.3m)	7s
Evening (14 Sep)	4.5ft (1.4m)	7s

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

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Sat 13		Sunday 14								Monday 15								Tuesday 16
	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	12 PM	3 PM
Rating (10 max)	0	0	0	0	0	0	1	0	1	2	0	0	0	0	0	0	0	0	1	1	0	0	1	1
Swell Height Map See all maps
Wave Height (m) & direction (?)	ESE	SE	SE	SE	SSW	SSW	SSW	SSW	SSW	SW	SW	SSW	SE	SE	SE	SE	SE	ESE	ESE	ESE	ESE	ESE	ESE	ESE
Period(s) (?)	9	11	10	10	6	7	7	7	7	7	7	6	9	9	9	9	10	10	9	9	9	9	9	9
Wave Graph (?)
kJ (?)	17	18	21	16	159	222	192	138	107	163	140	39	41	41	41	41	44	60	58	55	53	53	53	52
Wind (km/h)	SSW	SSW	SW	SW	SW	SW	WSW	SW	SW	N	NE	NE	NNE	NE	NE	ENE	ENE	ENE	E	ENE	NE	ENE	ESE	SE
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	glass	cross- on	cross- on	cross- on	cross- on	cross- on	cross- on	cross- on	cross	glass	glass	cross- on	cross- on	cross- off	cross- off
High Tide / height (m)		6:46PM 1.49					9:51AM 1.10			7:14PM 1.43								7:48PM 1.35
Low Tide / height (m)				2:22AM 0.26				1:01PM 1.03					3:35AM 0.33								5:15AM 0.37

	Sat 13		Sunday 14								Monday 15								Tuesday 16
Sunrise	-	-	-	-	5:18	-	-	-	-	-	-	-	5:20	-	-	-	-	-	-	-	5:20	-	-	-
Sunset	-	-	-	-	-	-	-	5:47	-	-	-	-	-	-	-	5:45	-	-	-	-	-	-	-	5:45

Rain (mm)	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Temp. °C	27	27	27	27	27	29	30	30	29	28	26	26	25	26	27	27	27	26	26	26	26	27	28	28
Feels °C (?)	27	27	26	26	27	29	31	32	33	33	29	27	26	27	28	29	30	29	30	31	30	30	31	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 Offshore wind has become very light (light winds from the SSW at Katsuura 22 km from Shida). Surf should be turning clean at Shida. 1.6m 6s windswell from the SSW with a 0.6m 10s swell from the ENE. 2 swells combining to make bigger set waves.
42 minutes ago Shida
Wind Update Cross-off wind 22 km from Tsurigasaki Surfing Beach (Tokyo 2020) has become light (light winds from the SSW at Katsuura). Waves should be turning clean at Tsurigasaki Surfing Beach (Tokyo 2020). 0.6m 10s swell from the ENE with a 0.2m 12s groundswell from the SE. 2 swells combining to make bigger set waves.
42 minutes ago Tsurigasaki Surfing Beach (Tokyo 2020)

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22 km away, 42 min ago

9 km/h

SSW

0.0

27.4

Air / Water (°C)

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