Nagahama Surf Forecast

/ Kanagawa (21 surf breaks) /

Japan (129 surf breaks) / Lat Long: (35.19° N 139.61° E)

Surf Forecasts:

Nagahama surfForecast / Kanagawa / Japan

12 Day Weather and Surf, issued 8 am Sunday 09 Nov 2025 JST

Forecast update in hr min s Forecast update imminent

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

Today's Nagahama sea temperature is 20.2° C
(Which is 1.7°C colder than average for this time of year)

Best Forecast Surf Conditions for Nagahama this week:

The surf forecast for Nagahama over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Nov 09) at 6PM. The primary swell is predicted to be 1.1m and 5s period with a secondary swell of 0.7m and 6s. Another secondary swell of 0.2m and 13s is also forecast. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Nagahama in the next 12 days are 0.7m 14s and forecast to arrive on Wednesday (Nov 12) at 12AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 3s period and expected on Monday (Nov 10) at 6PM.

Wave Type	Time (JST) & Date	Wave Height & Period
Next good surf (1 star+)	6PM (Sun 9th Nov)	3.5ft (1.1m) 5s
Best Surf	6PM (Sun 9th Nov)	3.5ft (1.1m) 5s
Most Powerful	12AM (Wed 12th Nov)	2.5ft (0.7m) 14s

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

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Short Range Forecast Moderate rain (total 16mm), heaviest on Sun afternoon. Very mild (max 19°C on Mon afternoon, min 12°C on Tue night). Winds increasing (calm on Sun afternoon, strong winds from the NNE by Mon afternoon).									Days 3-6 Weather Summary Moderate rain (total 11mm), heaviest on Thu night. Very mild (max 17°C on Thu morning, min 12°C on Wed morning). Winds increasing (light winds from the S on Wed afternoon, fresh winds from the NNE by Thu night).
	Sunday 09			Monday 10			Tuesday 11			Wednesday 12			Thursday 13			Friday 14			Saturday 15
	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	1	1	1	0	1	1	0	0	0	0	0	0	0	0	0	0	0	0	0
Swell Height Map See all maps
Wave Height (m) & direction (?)	S	SSE	SSE	SSW	SSW	S	SSW	S	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSE	SSW	SE	SE	SE	SE
Period(s) (?)	10	6	8	8	9	12	13	13	14	13	12	11	11	10	10	6	9	9	10	9	8
Wave Graph (?)
kJ (?)	2	25	98	85	65	10	33	125	210	133	82	41	22	10	19	10	8	14	23	21	24
Wind (km/h)	N	S	N	NE	NE	NNE	NE	ENE	NNE	NNE	S	SSW	WSW	SW	NNE	NE	ENE	E	NE	NE	ENE
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross- off	cross- on	cross- off	off	off	off	off	cross- off	cross- off	off	cross- on	cross- on	on	on	cross- off	off	cross- off	cross- off	off	off	off
High Tide / height (m)		5:44PM 1.53		8:19AM 1.34		6:14PM 1.46	9:23AM 1.28		6:51PM 1.37	10:41AM 1.25		7:42PM 1.25	11:58AM 1.26		9:32PM 1.13		12:52PM 1.29	12:01AM 1.12		1:30PM 1.33	1:37AM 1.20
Low Tide / height (m)		12:21PM 0.99	1:04AM 0.13		12:56PM 1.05	1:49AM 0.23		1:44PM 1.10	2:42AM 0.34		3:10PM 1.12		3:50AM 0.46	5:33PM 1.05		5:14AM 0.55		7:02PM 0.91	6:35AM 0.61		7:50PM 0.73

	Sunday 09			Monday 10			Tuesday 11			Wednesday 12			Thursday 13			Friday 14			Saturday 15
Sunrise	6:09	-	-	6:09	-	-	6:11	-	-	6:11	-	-	6:13	-	-	6:13	-	-	6:15	-	-
Sunset	-	4:39	-	-	4:38	-	-	4:38	-	-	4:37	-	-	4:37	-	-	4:36	-	-	4:36	-

Rain (mm)	-	9	7	-	-	-	-	-	-	-	-	-	-	1	10	-	-	-	-	-	-
Temp. °C	14	16	17	18	19	14	13	15	15	13	15	16	17	17	16	17	17	16	16	17	16
Feels °C (?)	12	17	16	15	15	7	9	11	11	9	11	11	14	14	16	13	13	13	13	15	14

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

Quick surf report for Nagahama:

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Information about the Nagahama Surf forecast

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

Nagahama is 6 km (4 miles) from Miura. If you plan a holiday in Kanagawa, look for hotels and other accommodation in Miura. Miura has rooms for a wide range of budgets as well as car hire and transport links.