Nagahama surfForecast / Kanagawa / Japan

information circle12 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 TypeTime (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

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
PMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAM
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
Wave Height (m) & direction (?)
0.3
SE
0.3
SE
0.1
NW
0.5
SE
0.3
SE
0.3
SE
0.4
SE
0.5
SE
0.7
SE
2
SSE
1.3
SSE
0.9
SSE
0.7
SE
0.4
SE
0.2
SSW
0.2
SSW
0.1
SE
0.1
SE
0.1
SE
0.2
E
0.5
SE
Period(s) (?)1095910696789988559881210
Wave
Graph
(?)Metric surfscale
Energy kJ (?)1414143146271947477251141742533333044
Wind
(km/h)
30
NE
30
NNE
30
NNE
25
NE
25
NNE
35
NNE
30
NNE
25
NNE
20
NNE
25
NNE
5
NNE
20
NNE
10
NE
20
N
20
NE
20
NNE
25
NE
25
NE
20
NE
25
NE
30
NNE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
offoffcross-
off
offoffcross-
off
cross-
off
cross-
off
offcross-
off
cross-
off
cross-
off
offcross-
off
offoffoffoffoffoffcross-
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
Sunset4:57--4:55--4:54--4:53--4:52--4:52--4:51--
part cloud
cloud
light rain
cloud
light rain
cloud
cloud
cloud
light rain
mod rain
rain showers
part cloud
rain showers
rain showers
part cloud
cloud
cloud
clear
part cloud
clear
clear
Rain (mm)
--1-1---2109-11-------
Temp. °C171614151615151617161820201918201414151516
Feels °C (?)1010810119912141317172018141579101011
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder

Eyeball surf reportRecent Eyeball Surf Reports for Kanagawa

  1. weather stationWind Update The wind is still offshore at Nagahama (light winds from the NNE at Zushi Kanagawa 12 km from Nagahama). No surfable waves

    Nagahama
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2 h 42 min ago

11 km/h
NNE
Offshore
Please reload the page to see if there are any updates.

FREE! Surf-Forecast.com widget for your website

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.

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