Uchizuma Surf Forecast

/ Shikoku (17 surf breaks) /

Japan (129 surf breaks) / Lat Long: (33.64° N 134.38° E)

Surf Forecasts:

Uchizuma surfForecast / Shikoku / Japan

12 Day Weather and Surf, issued 2 am Tuesday 14 Oct 2025 JST

Forecast update in hr min s Forecast update imminent

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

Today's Uchizuma sea temperature is 25.9° C
(Which is 1.4°C warmer than normal for this time of year)

Best Forecast Surf Conditions for Uchizuma this week:

The surf forecast for Uchizuma over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Oct 16) at 6PM. The primary swell is predicted to be 0.9m and 5s period with a secondary swell of 0.6m and 5s. Another secondary swell of 0.4m and 8s is also forecast. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Uchizuma in the next 12 days are 2.2m 8s and forecast to arrive on Saturday (Oct 18) at 6AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 5s period and expected on Sunday (Oct 19) at 12PM.

Wave Type	Time (JST) & Date	Wave Height & Period
Next good surf (1 star+)	6PM (Thu 16th Oct)	3ft (0.9m) 5s
Best Surf	6PM (Thu 16th Oct)	3ft (0.9m) 5s
Most Powerful	6AM (Sat 18th Oct)	7ft (2.2m) 8s

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

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Short Range Forecast Heavy rain (total 21mm), heaviest during Wed night. Warm (max 28°C on Thu morning, min 19°C on Thu night). Wind will be generally light.									Days 3-6 Weather Summary Light rain (total 5mm), mostly falling on Fri night. Warm (max 25°C on Sat morning, min 17°C on Sun night). Wind will be generally light.
	Tuesday 14			Wednesday 15			Thursday 16			Friday 17			Saturday 18			Sunday 19			Monday 20
	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night
Rating (10 max)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0	0	0	1	1	1
Swell Height Map See all maps
Wave Height (m) & direction (?)	E	E	SE	SE	ESE	ESE	SSW	ESE	ESE	ESE	ESE	ESE	ESE	SE	SE	ESE	ESE	SSE	SSE	SE	SE
Period(s) (?)	8	8	7	8	6	6	4	8	9	9	9	8	7	7	7	7	7	9	8	9	9
Wave Graph (?)
kJ (?)	12	5	11	9	12	111	13	27	15	8	17	557	282	199	102	68	48	52	38	29	91
Wind (km/h)	S	S	WNW	NE	SE	SSE	SW	WSW	NNE	NNE	ENE	SE	SSW	SW	NNW	NNE	NNE	NNE	NNE	NNE	NNE
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	glass	cross- on	cross- off	cross- off	cross- on	on	cross	cross	cross- off	cross- off	cross	on	cross- on	cross- on	off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off
High Tide / height (m)		1:39PM 1.40	10:43PM 1.34		2:52PM 1.48	1:23AM 1.32		3:30PM 1.55	2:52AM 1.42		3:58PM 1.62		3:47AM 1.54	4:21PM 1.68		4:30AM 1.63	4:43PM 1.72		5:07AM 1.71	5:04PM 1.75
Low Tide / height (m)			6:36PM 1.26	7:00AM 0.55		8:42PM 1.11	8:24AM 0.54		9:28PM 0.93	9:20AM 0.52		10:01PM 0.75	10:01AM 0.51		10:29PM 0.59	10:35AM 0.53		10:56PM 0.44	11:05AM 0.56		11:22PM 0.33

	Tuesday 14			Wednesday 15			Thursday 16			Friday 17			Saturday 18			Sunday 19			Monday 20
Sunrise	6:05	-	-	6:05	-	-	6:07	-	-	6:07	-	-	6:07	-	-	6:09	-	-	6:09	-	-
Sunset	-	5:30	-	-	5:30	-	-	5:28	-	-	5:27	-	-	5:25	-	-	5:24	-	-	5:22	-

Rain (mm)	-	-	3	2	4	10	-	2	-	-	-	5	-	-	-	-	-	-	-	-	-
Temp. °C	26	27	24	24	23	24	28	27	22	24	24	23	25	25	23	23	22	18	21	20	19
Feels °C (?)	28	29	27	26	26	27	28	30	24	21	23	22	26	26	25	21	20	16	21	20	19

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 Shikoku

Wind Update Still cross-shore at Uchizuma (light winds from the ENE at Murotomisaki(47899-0) 47 km from Uchizuma). 0.6m 8s swell from the E with a 0.3m 6s windswell from the S and a 0.2m 8s swell from the SSW. 3 swells combining to make bigger set waves.
56 minutes ago Uchizuma

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47 km away, 56 min ago

15 km/h

ENE

0.0

25.9

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 Uchizuma 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 Uchizuma Surf forecast

The above surf forecast table for Uchizuma provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Uchizuma can be found by selecting the local surf guide option on the grey menu. Our Uchizuma 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 (Uchizuma) 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 Uchizuma 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.

Are you planning a holiday in Shikoku? If you are looking for accommodation near Uchizuma, camping, hotels and holiday cottages in Shikoku, consider staying in Anan which is 40 km (25 miles) away. Other places in and around Shikoku where you can find information about places to rent, and car hire include Muroto which is 45 km (28 miles) away, Komatsushima, Aki and Kamojima.