Izumi Surf Forecast

/ Chiba (19 surf breaks) /

Japan (129 surf breaks)

Surf Forecasts:

Izumi surfForecast / Chiba / Japan

12 Day Weather and Surf, issued 8 pm Sunday 24 Aug 2025 JST

Forecast update in hr min s Forecast update imminent

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

Today's Izumi sea temperature is 26.9° C
(Which is normal for this time of year)

Best Forecast Surf Conditions for Izumi this week:

The surf forecast for Izumi over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Aug 28) at 3AM. The primary swell is predicted to be 0.5m and 9s period with a secondary swell of 0.1m and 7s. Another secondary swell of 0.8m and 5s is also forecast. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Izumi in the next 12 days are 0.7m 10s and forecast to arrive on Saturday (Aug 30) at 6AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 4s period and expected on Sunday (Aug 31) at 9AM.

Wave Type	Time (JST) & Date	Wave Height & Period
Next good surf (1 star+)	3AM (Thu 28th Aug)	1.5ft (0.5m) 9s
Best Surf	3AM (Thu 28th Aug)	1.5ft (0.5m) 9s
Most Powerful	6AM (Sat 30th Aug)	2.5ft (0.7m) 10s

Table - best surf conditions forecast for Izumi over the next 12 days.

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Short Range Forecast Mostly dry. Warm (max 29°C on Tue morning, min 26°C on Sun night). Winds increasing (calm on Mon night, fresh winds from the SW by Wed morning).										Days 3-6 Weather Summary Some drizzle, heaviest during Wed night. Warm (max 30°C on Sat morning, min 24°C on Thu night). Wind will be generally light.
		Monday 25			Tuesday 26			Wednesday 27			Thursday 28			Friday 29			Saturday 30			Sun 31
	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM
Rating (10 max)	0	0	0	0	0	0	0	0	0	0	1	0	1	1	0	0	1	0	0	0	0
Swell Height Map See all maps
Wave Height (m) & direction (?)	ESE	ESE	ESE	ESE	ESE	SSW	ESE	SSW	SSW	ESE	ESE	E	SE	SE	SE	SE	SE	SE	SE	S	SE
Period(s) (?)	8	8	8	8	8	4	10	5	5	9	9	8	9	11	11	10	10	10	10	7	9
Wave Graph (?)
Energy (?)	38	35	30	33	30	31	66	87	111	100	88	55	55	100	120	148	154	134	86	80	70
Wind (km/h)	WSW	NE	ENE	NW	S	SSW	SSW	SW	SW	SW	NNE	NE	NNE	ESE	SSW	SW	WSW	SSW	SW	NE	SE
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross- off	cross	cross- on	glass	cross- on	cross	cross	cross	cross	cross	cross- off	cross	cross- off	glass	cross- on	cross	cross- off	cross	cross	cross	on
High Tide / height (m)		4:57AM 1.43	5:49PM 1.36		5:36AM 1.39		6:06PM 1.37	6:15AM 1.33		6:23PM 1.38	6:54AM 1.24		6:40PM 1.38	7:37AM 1.15		6:57PM 1.37	8:29AM 1.05		7:17PM 1.34	10:01AM 0.97
Low Tide / height (m)	11:08PM 0.63	11:28AM 0.27		11:40PM 0.53	11:53AM 0.38		12:13AM 0.46		12:16PM 0.50	12:46AM 0.43		12:37PM 0.62	1:22AM 0.42		12:54PM 0.74	2:02AM 0.44		1:06PM 0.84	2:53AM 0.47		12:56PM 0.93

		Monday 25			Tuesday 26			Wednesday 27			Thursday 28			Friday 29			Saturday 30			Sun 31
Sunrise	-	5:03	-	-	5:05	-	-	5:05	-	-	5:05	-	-	5:07	-	-	5:07	-	-	5:09	-
Sunset	-	-	6:15	-	-	6:14	-	-	6:13	-	-	6:12	-	-	6:09	-	-	6:08	-	-	6:07

Rain (mm)	-	-	-	-	-	-	-	-	-	1	-	-	-	-	-	-	-	-	-	-	-
Temp. °C	27	28	28	27	29	29	27	29	29	27	26	26	25	26	27	26	30	30	27	29	29
Feels °C (?)	29	31	32	33	31	29	28	28	29	29	28	27	27	30	30	28	31	31	30	33	34

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 Izumi (calm at Katsuura 20 km from Izumi). 0.5m 6s windswell from the SSE with a 0.5m 4s local chop from the SSW and a 0.2m 10s swell from the ESE. 3 swells combining to make bigger set waves.
1 hour 19 minutes ago Izumi

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20 km away, 1 h 19 min ago

2 km/h

0.0

26.9

Air / Water (°C)

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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Izumi 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.

Information about the Izumi Surf forecast

The above surf forecast table for Izumi provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Izumi can be found by selecting the local surf guide option on the grey menu. Our Izumi surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Izumi) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for Izumi may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

Izumi is 7 km (4 miles) from the city of Ohara. If you plan a holiday in Chiba, look for hotels and other accommodation in Ohara. Ohara has rooms for a wide range of budgets as well as car hire and transport links.