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 2 pm Thursday 23 Oct 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 24.4° C
(Which is 1.5°C warmer than normal 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 (Oct 26) at 9PM. The primary swell is predicted to be 1.4m and 8s period. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Nagahama in the next 12 days are 2.3m 8s and forecast to arrive on Sunday (Oct 26) at 6PM. 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 3s period and expected on Friday (Oct 24) at 6AM.

Wave Type	Time (JST) & Date	Wave Height & Period
Next good surf (1 star+)	9PM (Sun 26th Oct)	4.5ft (1.4m) 8s
Best Surf	9PM (Sun 26th Oct)	4.5ft (1.4m) 8s
Most Powerful	6PM (Sun 26th Oct)	7.5ft (2.3m) 8s

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 Light rain (total 4mm), mostly falling on Sun morning. Very mild (max 17°C on Thu afternoon, min 13°C on Fri morning). Mainly fresh winds.											Days 3-6 Weather Summary Heavy rain (total 21mm), heaviest during Sun night. Warm (max 20°C on Mon morning, min 13°C on Tue night). Winds increasing (light winds from the NNE on Sun night, fresh winds from the NNE by Tue afternoon).
	Thu 23		Friday 24			Saturday 25			Sunday 26			Monday 27			Tuesday 28			Wednesday 29
	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM
Rating (10 max)	0	0	0	0	0	0	0	0	0	0	1	0	1	0	0	0	0	0	0	0	0
Swell Height Map See all maps
Wave Height (m) & direction (?)	SE	SE	NW	SE	SE	SE	SE	SE	SE	SSE	SSE	SSE	SE	SE	SSW	SSW	SE	SE	SE	E	SE
Period(s) (?)	10	9	5	9	10	6	9	6	7	8	9	9	8	8	5	5	9	8	8	12	10
Wave Graph (?)
kJ (?)	14	14	1	43	14	6	27	19	47	477	251	141	74	25	3	3	3	3	3	0	44
Wind (km/h)	NE	NNE	NNE	NE	NNE	NNE	NNE	NNE	NNE	NNE	NNE	NNE	NE	N	NE	NNE	NE	NE	NE	NE	NNE
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	off	off	cross- off	off	off	cross- off	cross- off	cross- off	off	cross- off	cross- off	cross- off	off	cross- off	off	off	off	off	off	off	cross- off
High Tide / height (m)	4:56PM 1.59		6:20AM 1.54	5:19PM 1.59		7:02AM 1.47	5:43PM 1.57		7:50AM 1.38		6:08PM 1.52	8:49AM 1.29		6:36PM 1.45	10:15AM 1.23		7:07PM 1.35		12:12PM 1.24	8:01PM 1.22
Low Tide / height (m)		11:38PM 0.12	11:45AM 0.82		12:12AM 0.11		12:12PM 0.91	12:49AM 0.15		12:40PM 1.00	1:31AM 0.22		1:11PM 1.08	2:21AM 0.33		1:58PM 1.15		3:26AM 0.44	4:22PM 1.18		4:57AM 0.52

	Thu 23		Friday 24			Saturday 25			Sunday 26			Monday 27			Tuesday 28			Wednesday 29
Sunrise	-	-	5:54	-	-	5:54	-	-	5:56	-	-	5:56	-	-	5:58	-	-	5:58	-	-	6:00
Sunset	4:57	-	-	4:55	-	-	4:54	-	-	4:53	-	-	4:52	-	-	4:52	-	-	4:51	-	-

Rain (mm)	-	-	1	-	1	-	-	-	2	10	9	-	1	1	-	-	-	-	-	-	-
Temp. °C	17	16	14	15	16	15	15	16	17	16	18	20	20	19	18	20	14	14	15	15	16
Feels °C (?)	10	10	8	10	11	9	9	12	14	13	17	17	20	18	14	15	7	9	10	10	11

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 Kanagawa

Wind Update The wind is still offshore at Nagahama (light winds from the NNE at Zushi Kanagawa 12 km from Nagahama). No surfable waves
2 hours 42 minutes ago Nagahama

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2 h 42 min ago

11 km/h

NNE

Offshore

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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 Nagahama 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 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.