Inamuragasaki surfForecast / Kanagawa / Japan

information circle12 Day Weather and Surf, issued 2 am Tuesday 16 Dec 2025 JST
Forecast update in hr  min  s Forecast update imminent
Inamuragasaki surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Inamuragasaki sea temperature is
18.0° C
(Which is 1.3°C colder than average for this time of year)


Best Forecast Surf Conditions for Inamuragasaki this week:

The surf forecast for Inamuragasaki over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Dec 17) at 6PM. The primary swell is predicted to be 1.3m and 6s period with a secondary swell of 0.5m and 6s. Another secondary swell of 0.2m and 8s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Inamuragasaki in the next 12 days are 1.9m 7s and forecast to arrive on Sunday (Dec 21) at 12PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 4s period and expected on Monday (Dec 22) at 6PM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 6PM (Wed 17th Dec)4.5ft (1.3m) 6s
Best Surf 6PM (Wed 17th Dec)4.5ft (1.3m) 6s
Most Powerful12PM (Sun 21st Dec)6ft (1.9m) 7s

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

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Mostly dry. Very mild (max 13°C on Wed afternoon, min 7°C on Tue morning). Wind will be generally light.

Days 3-6 Weather Summary Heavy rain (total 36mm), heaviest during Sun night. Very mild (max 18°C on Sat morning, min 8°C on Fri morning). Winds increasing (calm on Fri afternoon, strong winds from the NNE by Sun night).

Tuesday
16
Wednesday
17
Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
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
Wave Height (m) & direction (?)
0.2
SSE
0.2
SSE
0.1
SE
0.2
SSW
0.9
SW
0.6
SSW
0.2
SSW
0.2
SSW
0.1
E
0.1
SE
0.1
E
0.6
SE
0.9
SSE
0.5
SE
0.9
SSE
1.9
S
1.7
S
1.1
SSE
0.8
SSE
0.7
SE
0.5
SE
Period(s) (?)888465661011115556678999
Wave
Graph
(?)Metric surfscale
Energy kJ (?)762258193325219351360273250151968640
Wind
(km/h)
20
NNE
10
S
15
NNW
10
NE
10
SW
15
N
25
NNE
15
NE
10
NNE
15
NNE
5
SE
5
WSW
15
SW
25
SSW
20
SSW
15
SW
30
SSW
10
SW
45
NNE
45
NNE
50
N
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
offonoffcross-
off
cross-
on
offoffcross-
off
cross-
off
offglassglasscross-
on
ononcross-
on
cross-
on
cross-
on
offcross-
off
off
High Tide
/ height (m)
1:22PM
1.34
4:04AM
1.25
2:00PM
1.37
4:41AM
1.31
2:38PM
1.40
5:16AM
1.36
3:15PM
1.43
5:49AM
1.38
3:52PM
1.46
6:21AM
1.39
4:28PM
1.47
6:54AM
1.39
5:05PM
1.47
Low Tide
/ height (m)
8:48PM
0.32
8:42AM
1.00
9:24PM
0.23
9:27AM
1.01
10:00PM
0.16
10:06AM
1.01
10:35PM
0.11
10:41AM
1.00
11:10PM
0.08
11:14AM
0.99
11:44PM
0.08
11:49AM
0.97
12:19AM
0.10
Tuesday
16
Wednesday
17
Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Sunrise6:43--6:43--6:43--6:45--6:45--6:46--6:46--
Sunset-4:30--4:30--4:30--4:30--4:31--4:31--4:32-
clear
clear
clear
clear
part cloud
clear
clear
part cloud
clear
clear
clear
part cloud
part cloud
cloud
light rain
light rain
light rain
heavy rain
light rain
cloud
rain showers
Rain (mm)
--------------311312-1
Temp. °C912111113121012111013151818181816161087
Feels °C (?)5898108488711131413151612141-3-4
  • Map Icons:
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  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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Information about the Inamuragasaki Surf forecast

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

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