Ammonias surfForecast / HAW – Kaua'i / USA

information circle48hr Weather and Surf, issued 7 am Thursday 23 Apr 2026 HST
Forecast update in hr  min  s Forecast update imminent
Ammonias surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Ammonias sea temperature is
25.0° C
(Which is slightly warmer than usual)

How big are the waves at Ammonias today?

The current surf forecast for Ammonias at 1PM is: 0.6m 4s primary swell from a East-northeast direction (forecast issued at 07:00am April 23). An open ocean swell of 1.0m 11s is not directed at the surf break, a second open ocean swell of 0.6m 12s is not directed at the surf break. The wind direction is predicted to be cross-shore.

Time (HST) & DateWave HeightWave Period
Morning (23 Apr)2ft (0.6m)4s
Afternoon (23 Apr)2ft (0.6m)4s
Evening (23 Apr)1.5ft (0.4m)12s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Light rain (total 2mm), mostly falling on Sat morning. Warm (max 24°C on Thu morning, min 21°C on Thu night). Wind will be generally light.

Thursday
23
Friday
24
Saturday
25
Sun
26
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
2 AM
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
2 AM
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
2 AM
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
0
0
Swell
Height Map
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
Wave
Height (m)
Direction
Period (s)
0.6
E
7
0.6
E
4
0.6
E
4
0.6
ENE
4
0.8
ENE
4
0.4
SW
12
1.3
NE
10
0.4
SW
14
0.4
SW
14
0.4
SSW
13
0.2
SSW
16
0.4
SW
13
0.4
SW
13
0.4
SW
13
0.4
SSW
13
1.7
NE
6
0.5
SW
15
0.5
SW
15
0.5
SW
15
0.6
SSW
15
0.6
SSW
16
0.6
SSW
16
0.6
SSW
15
0.6
SSW
15
Wave Graph
Metric surfscale
Energy kJ
36
10
11
12
17
35
0
50
47
70
25
44
44
43
69
183
115
112
112
158
162
160
152
144
Wind (km/h)
15
NE
15
ENE
20
ENE
20
ENE
15
NE
25
NE
20
NE
20
NE
20
NE
20
NE
20
NE
20
ENE
20
NE
25
NE
25
NE
25
NE
25
NE
25
ENE
25
ENE
25
NE
25
NE
25
NE
25
NE
20
ENE
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
High Tide
9:41AM0.12m
10:22PM0.53m
11:24AM0.17m
11:20PM0.50m
12:28PM0.25m
00:08AM0.47m
Low Tide
5:52AM0.08m
1:58PM0.05m
6:19AM0.06m
3:40PM0.09m
6:42AM0.04m
5:15PM0.11m
clear
clear
clear
clear
clear
clear
part cloud
cloud
cloud
clear
clear
clear
clear
clear
part cloud
clear
clear
rain showers
rain showers
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:11
6:09
6:09
6:09
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:00
7:00
7:00
7:00
1
1
Temp °C
23
23
24
24
24
23
23
22
21
22
24
24
24
23
23
23
22
23
24
24
24
23
23
23
25
24
24
24
24
22
22
21
20
20
22
23
23
22
22
22
20
21
22
22
22
22
22
23
Swell 1
Height (m)
Direction
Period (s)
1
NNE
11
1
NNE
11
1
NNE
11
1
NNE
11
0.9
NNE
10
0.5
W
15
0.5
W
15
0.6
W
14
0.8
NNE
10
0.8
NNE
10
0.6
W
13
0.6
W
12
0.5
W
12
0.5
W
12
0.5
W
12
0.5
SW
16
0.5
SW
15
0.5
SW
15
0.5
SW
15
0.6
SSW
15
0.6
SSW
16
0.6
SSW
16
0.6
SSW
15
0.6
SSW
15
Energy kJ
239
226
222
218
173
109
109
140
122
105
123
113
75
72
71
122
115
112
112
158
162
160
152
144
Swell 2
Height (m)
Direction
Period (s)
0.6
W
13
0.6
W
13
0.6
W
13
0.6
W
12
0.5
W
14
0.4
W
12
0.4
W
12
0.4
SW
14
0.6
W
13
0.6
W
13
0.2
SSW
13
0.4
SW
13
0.4
SW
13
0.4
SW
13
0.4
SSW
13
0.5
W
12
0.5
W
12
0.4
WNW
11
0.4
WNW
11
0.4
NNW
13
0.4
NNW
13
0.4
NNW
13
0.4
NNW
12
0.4
NNW
12
Energy kJ
117
116
114
109
107
44
44
50
126
126
17
44
44
43
69
71
67
40
39
68
67
65
58
57
Swell 3
Height (m)
Direction
Period (s)
0.4
NNW
12
0.4
WNW
16
0.5
W
16
0.4
NW
12
0.4
W
12
0.4
SW
12
0.3
NNW
12
0.2
NNW
12
0.4
SW
14
0.4
SSW
13
0.2
SSW
16
0.2
SSW
16
0.2
SSW
16
0.2
NNW
12
0.4
NW
12
0.2
NNW
14
0.2
NNW
12
0.4
NW
14
0.4
NW
13
0.4
WNW
11
0.4
WNW
11
0.4
WNW
10
0.3
WNW
10
0.3
WNW
10
Energy kJ
59
85
131
36
44
35
27
13
47
70
25
25
25
15
37
20
13
50
44
38
38
37
20
19
Wind waves
Height (m)
Direction
Period (s)
0.6
E
7
0.6
E
4
0.6
E
4
0.6
ENE
4
0.8
ENE
4
1.3
NE
10
1.3
NE
10
1.3
NE
10
0.9
ENE
5
0.9
ENE
5
1.1
NE
9
1.1
NE
9
1.1
NE
9
1.2
NE
9
1.3
NE
9
1.7
NE
6
1.8
NE
7
1.9
NE
8
1.8
NE
8
1.8
NE
8
1.6
NE
8
1.6
NE
8
1.5
NE
8
1.5
NE
8
Energy kJ
36
10
11
12
17
328
355
311
39
42
212
183
179
225
281
183
336
429
388
398
338
299
262
255
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
2
2
1
3
2
2
1
2
2
1
2
3
1
1
1
1
1
1
1
1
1
Distance (km)
16
16
31
31
16
16
45
16
45
16
33
118
16
45
45
16
16
16
16
16
16
16
16
16
Best forecast wave conditions in Kaua'i
Rating
(10 max)
3
3
3
2
2
1
3
2
2
2
2
1
2
3
3
3
3
3
1
3
1
3
3
Best forecast wave conditions in United States
Rating
(10 max)
3
3
3
2
3
3
4
3
3
2
2
3
2
2
3
3
3
3
3
3
3
3
3
3
Header Global
Rating
(10 max)
5
5
5
5
5
5
5
5
5
5
5
4
5
5
4
5
4
4
4
5
5
6
5
5
  • 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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