Nagai Point Surf Break

Lat Long: 35.19° N 139.60° E

Nagai Point Surf Forecast and Surf Report

Issued: 2 am 20 Aug 2026 (local time)

Forecast update in  hr  min

Today's Nagai Point sea temperature is
26.5° C
0.4° 

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


Nagai Point surf forecast from 19 Aug 2026:

  • Best quality surf: Monday 24 Aug, 9AM (local time) - 5.5ft (1.7m), 16s period, SSE swell with glassy winds.
  • Most powerful swell: Thursday 27 Aug, 12AM (local time) - 16ft (5.0m), 12s period, SSE swell with 6,844 kJ wave energy.
  • Next surfable swell (1★+): Sunday 23 Aug, 3PM (local time) - 2ft (0.6m), 14s period with SSE swell.

Best Forecast Surf Conditions for Nagai Point this week:

The surf forecast for Nagai Point over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Aug 23) at 3PM. The primary swell is predicted to be 0.6m and 14s period with a secondary swell of 0.3m and 8s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Nagai Point in the next 16 days are 5.0m 12s and forecast to arrive on Thursday (Aug 27) at 12AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 11s period and expected on Friday (Aug 21) at 12PM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 3PM (Sun 23rd Aug)2ft (0.6m) 14s
Best Surf 9AM (Mon 24th Aug)5.5ft (1.7m) 16s
Most Powerful12AM (Thu 27th Aug)16ft (5.0m) 12s

Table - best surf conditions forecast for Nagai Point over the next 16 days.


Short Range Forecast

Some drizzle, heaviest during Sat night. Warm (max 27°C on Sat afternoon, min 24°C on Sat night). Wind will be generally light.

Days 4-6 Weather Summary

Some drizzle, heaviest during Sun night. Warm (max 27°C on Sun afternoon, min 24°C on Sun morning). Winds increasing (calm on Mon morning, fresh winds from the SSW by Tue night).

Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
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
0
0
0
0
0
0
0
0
1
2
4
1
0
2
0
0
2
4
7
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.2
SSE
6
0.2
SSW
9
0.2
S
10
0.4
SSW
9
0.8
S
9
0.4
SSW
9
0.4
SSW
9
0.4
SSW
9
0.4
SW
9
0.2
SSE
15
0.6
SSE
14
1.1
SSE
16
1.7
SSE
16
1.7
SSE
16
2.3
SSE
16
2.5
S
16
3
S
16
3
S
15
3
S
13
3.5
SSE
12
5
SSE
12
Wave Graph
Metric surfscale
Energy kJ
4
8
8
27
101
35
32
32
20
21
134
627
1531
1307
2709
3607
4016
3764
2668
3679
6844
Wind (km/h)
10
SSE
15
SSW
20
SSW
15
SSW
25
S
25
SSW
15
SSW
20
SSW
0
W
15
NE
5
E
5
E
5
S
15
S
25
SSW
15
SSW
25
S
20
SSW
15
SSW
15
SSE
10
SSW
Wind State
cross-on
cross-on
cross-on
cross-on
cross-on
on
on
cross-on
glassy
off
glassy
glassy
glassy
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross-on
High Tide
9:27AM1.19m
8:27PM1.44m
11:35AM1.10m
8:59PM1.38m
10:01PM1.32m
4:01PM1.31m
00:24AM1.29m
4:15PM1.40m
2:01AM1.36m
4:35PM1.47m
3:03AM1.45m
4:55PM1.51m
Low Tide
2:16PM0.93m
4:02AM0.54m
2:23PM1.07m
5:39AM0.54m
7:23AM0.48m
8:27PM1.21m
8:33AM0.38m
9:20PM1.11m
9:22AM0.29m
9:52PM0.99m
10:02AM0.23m
10:22PM0.87m
clear
cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
thunderstorm
part cloud
part cloud
thunderstorm
clear
clear
clear
clear
clear
part cloud
cloud
thunderstorm
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:03
5:05
5:05
5:05
5:07
5:07
5:07
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:24
6:23
6:22
6:21
6:20
6:19
6:16
 mm
1
1
1
4
Temp °C
26
26
26
26
26
26
26
27
27
25
27
26
26
27
26
26
27
27
26
27
27
Feels °C
30
27
28
27
27
26
29
29
30
27
31
30
29
29
27
28
29
29
28
29
28
  • 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
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Information about the Nagai Point Surf forecast

The above surf forecast table for Nagai Point provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Nagai Point can be found by selecting the local surf guide option on the grey menu. Our Nagai Point 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 (Nagai Point) 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 Nagai Point 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.

Nagai Point 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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