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Surf Forecasts:

Nagahama surfForecast / Kanagawa / Japan

information circle12 Day Weather and Surf, issued 8 pm Sunday 15 Feb 2026 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
16.3° C
 (Which is normal for this time of year)

Best Forecast Surf Conditions for Nagahama this week:

The most powerful waves expected at Nagahama in the next 12 days are 0.4m 6s and forecast to arrive on Monday (Feb 16) 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 0.7m 3s period and expected on Tuesday (Feb 17) at 12AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 6AM (Mon 16th Feb)1.5ft (0.4m) 6s

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

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table

Short Range Forecast Moderate rain (total 12mm), heaviest on Mon night. Very mild (max 15°C on Sun night, min 3°C on Mon night). Winds decreasing (fresh winds from the NNE on Mon morning, calm by Wed afternoon).

Days 3-6 Weather Summary Mostly dry. Very mild (max 12°C on Sat afternoon, min 5°C on Wed night). Winds decreasing (strong winds from the NNE on Wed night, calm by Fri morning).

Monday
16
Tuesday
17
Wednesday
18
Thursday
19
Friday
20
Saturday
21
Sun
22
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
1.1
SW
0.3
SSW
0.2
SSW
0.2
SSE
0.1
SE
0.1
SE
0.1
SE
0.1
SE
0.1
SE
0.2
SSW
0.1
SE
0.1
SW
0.1
SE
0.1
SE
0.2
WSW
0.1
SE
0.1
SE
0.1
SE
0.1
SE
0.1
SE
0.1
SW
Period(s) (?)656766656875993486875
Wave
Graph
(?)Metric surfscale
Energy kJ (?)8364411112621331132321
Wind
(km/h)
10
W
40
NNE
25
ENE
40
NE
20
NE
5
ENE
10
N
15
NNE
5
NNE
25
NNE
25
NNE
10
NE
5
S
5
NE
10
S
15
W
10
NNE
5
NNE
15
NE
30
NNE
25
NNE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on		cross-
off		cross-
off		offoffoffcross-
off		cross-
off		glassoffoffoffglassglasscross-
on		cross-
on		offglassoffcross-
off		off
High Tide
/ height (m)
5:13AM
1.35
4:03PM
1.40
5:35AM
1.38
4:45PM
1.45
5:56AM
1.39
5:25PM
1.47
6:18AM
1.39
6:03PM
1.46
6:39AM
1.39
6:42PM
1.40
7:00AM
1.37
7:23PM
1.31
7:22AM
1.35
Low Tide
/ height (m)
10:18PM
0.01
10:36AM
0.72
10:53PM
-0.01
11:05AM
0.61
11:25PM
0.02
11:35AM
0.50
11:56PM
0.08
12:06PM
0.41
12:25AM
0.18
12:38PM
0.34
12:52AM
0.30
1:12PM
0.30
1:18AM
0.45
1:51PM
0.29
Monday
16
Tuesday
17
Wednesday
18
Thursday
19
Friday
20
Saturday
21
Sun
22
Sunrise-6:26--6:26--6:24--6:24--6:22--6:22--6:20-
Sunset--5:22--5:23--5:24--5:25--5:27--5:28--5:29
clear
part cloud
light rain
mod rain
light rain
cloud
cloud
cloud
clear
clear
clear
part cloud
part cloud
part cloud
cloud
cloud
cloud
cloud
cloud
part cloud
part cloud
Rain (mm)
--1101----------------
Temp. °C151110857781110799811111012111112
Feels °C (?)10242-13368415565579746
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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.

View detailed surf forecast for Nagahama at:
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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.

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