Nagai Point Surf Break

Lat Long: 35.19° N 139.60° E

Nagai Point 48 hour detailed Surf Forecast

Issued: 8 am 21 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.


How big are the waves at Nagai Point today (21 Aug):

  • Morning surf: Morning surf (21 Aug, local time) - 1.5ft (0.4m), 9s period with SSW swell.
  • Afternoon surf: Afternoon surf (21 Aug, local time) - 2.5ft (0.8m), 9s period with S swell.
  • Evening surf: Evening surf (21 Aug, local time) - 3ft (0.9m), 9s period with SSW swell.

The current surf forecast for Nagai Point at 2PM is: 0.8m 9s primary swell from a South direction and 0.1m 11s secondary swell from a Southeast direction, 0.1m 9s secondary swell from a South direction (forecast issued at 08:00am August 21). The wind direction is predicted to be cross-onshore.

Time (JST) & DateWave HeightWave Period
Morning (21 Aug)1.5ft (0.4m)9s
Afternoon (21 Aug)2.5ft (0.8m)9s
Evening (21 Aug)3ft (0.9m)9s

Table - waves today at Nagai Point. (Swell directed towards the surf break)


Short Range Forecast

Moderate rain (total 10mm), heaviest on Sat night. Warm (max 28°C on Sun afternoon, min 24°C on Sat night). Winds decreasing (fresh winds from the SSW on Fri afternoon, calm by Sun afternoon).

Friday
21
Saturday
22
Sunday
23
6 AM
9 AM
12 PM
3 PM
6 PM
9 PM
12 AM
3 AM
6 AM
9 AM
12 PM
3 PM
6 PM
9 PM
12 AM
3 AM
6 AM
9 AM
12 PM
3 PM
6 PM
9 PM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.4
SSW
9
0.4
SSW
9
0.6
S
9
0.8
S
9
0.9
SSW
9
0.9
SSW
9
0.4
SSW
9
0.4
SSW
10
0.4
SSW
9
0.4
SSW
9
0.4
SSW
9
0.4
SSW
9
0.4
SSW
9
0.4
SSW
9
0.4
SW
9
0.4
SW
9
0.3
SSW
9
0.4
SSW
9
0.4
SSW
8
0.3
SE
13
0.3
SE
12
0.4
SE
12
Wave Graph
Metric surfscale
Energy kJ
27
27
57
101
132
113
35
36
34
32
32
32
32
32
20
20
15
25
24
27
23
38
Wind (km/h)
15
SSW
20
SSW
25
S
30
S
30
SSW
25
SSW
25
SSW
20
SW
15
SW
10
SW
15
S
20
SSW
5
SSE
15
ENE
10
NE
15
NE
15
NE
15
NE
15
NNE
5
ENE
10
S
5
ESE
Wind State
cross-on
cross-on
cross-on
cross-on
cross-on
on
on
on
on
on
cross-on
on
cross-on
off
off
off
off
off
off
glassy
cross-on
cross-off
High Tide
11:35AM1.10m
8:59PM1.38m
10:01PM1.32m
4:01PM1.31m
Low Tide
4:02AM0.54m
2:23PM1.07m
5:39AM0.54m
7:23AM0.48m
8:27PM1.21m
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
part cloud
part cloud
part cloud
part cloud
part cloud
thunderstorm
thunderstorm
light rain
part cloud
light rain
part cloud
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:05
5:05
5:05
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:23
6:22
6:21
 mm
3
3
3
1
Temp °C
26
26
26
26
26
26
26
26
26
26
26
27
27
26
25
24
24
24
26
28
26
26
Feels °C
28
28
27
26
25
26
26
27
28
29
28
29
31
28
28
26
25
25
27
31
28
30
  • 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
How to use the Wavefinder 

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