Ammonias Surf Break

Lat Long: 21.95° N 159.35° W

Issued: 7 am 28 Jun 2026 (local time)

Forecast update in  hr  min

Today's Ammonias sea temperature is
25.9° C

Normal for this time of year

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


Ammonias surf forecast from 28 Jun 2026:

  • Most powerful swell: Saturday 4 Jul, 11PM (local time) - 3ft (0.9m), 19s period, SSW swell with 627 kJ wave energy.

Best Forecast Surf Conditions for Ammonias this week:

The most powerful waves expected at Ammonias in the next 16 days are 0.9m 19s and forecast to arrive on Saturday (Jul 04) at 11PM. Winds are predicted to be cross-shore at the time the swell arrives.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful11PM (Sat 4th Jul)3ft (0.9m) 19s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Light rain (total 7mm), mostly falling on Sun morning. Warm (max 26°C on Sun afternoon, min 23°C on Sun night). Wind will be generally light.

Days 4-6 Weather Summary

Moderate rain (total 17mm), heaviest on Wed night. Warm (max 26°C on Wed morning, min 23°C on Thu night). Wind will be generally light.

Sunday
28
Monday
29
Tuesday
30
Wednesday
1
Thursday
2
Friday
3
Saturday
4
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
1
1
0
0
1
1
0
1
0
1
1
0
1
1
0
1
1
1
0
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.6
ENE
8
1.5
ENE
8
0.8
SSW
16
1.6
ENE
8
1.9
ENE
8
1.8
ENE
8
1.6
ENE
7
1.6
ENE
7
1.7
ENE
8
1.8
ENE
8
1.8
ENE
8
1.9
ENE
8
1.7
ENE
8
1.7
ENE
8
1.7
ENE
8
1.5
ENE
8
1.5
ENE
8
1.5
ENE
8
0.7
S
21
0.8
S
20
0.9
SSW
19
Wave Graph
Metric surfscale
Energy kJ
306
277
346
292
397
346
280
256
345
422
432
443
373
310
310
247
247
253
441
490
608
Wind (km/h)
20
ENE
20
ENE
20
ENE
20
E
25
ENE
20
ENE
25
ENE
25
NE
25
ENE
25
ENE
25
ENE
25
ENE
25
ENE
20
ENE
20
NE
25
ENE
25
ENE
20
ENE
25
ENE
25
ENE
20
ENE
Wind State
cross
cross
cross
cross-on
cross-on
cross
cross
cross
cross
cross-on
cross
cross
cross
cross
cross
cross-on
cross
cross
cross
cross
cross
High Tide
3:40PM0.66m
2:37AM0.18m
4:13PM0.66m
3:14AM0.19m
4:46PM0.66m
3:53AM0.20m
5:18PM0.65m
4:37AM0.20m
5:48PM0.62m
5:30AM0.21m
6:17PM0.59m
6:37AM0.22m
6:44PM0.55m
Low Tide
11:15PM0.14m
8:18AM-0.04m
11:39PM0.13m
8:56AM-0.04m
00:05AM0.13m
9:33AM-0.02m
00:33AM0.12m
10:09AM0.00m
1:03AM0.11m
10:47AM0.04m
1:33AM0.09m
11:30AM0.10m
2:02AM0.07m
rain showers
clear
clear
thunderstorm
thunderstorm
thunderstorm
part cloud
clear
part cloud
thunderstorm
thunderstorm
thunderstorm
part cloud
thunderstorm
light rain
rain showers
cloud
rain showers
rain showers
light rain
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:56
5:56
5:56
5:56
5:56
5:58
5:58
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:23
7:23
7:23
7:23
7:23
7:23
7:23
 mm
1
2
2
2
1
2
6
1
2
2
3
2
2
1
Temp °C
25
26
24
25
26
25
25
26
25
26
26
24
25
25
24
25
25
24
25
25
24
Feels °C
24
25
24
25
26
25
24
26
26
26
26
24
24
24
24
24
24
24
24
24
24
Swell 1
Height (m)
Direction
Period (s)
0.6
S
18
0.7
SSW
16
0.8
SSW
16
0.8
SSW
15
0.8
SSW
15
0.7
SSW
14
0.6
SSW
14
0.6
SSW
13
0.7
SSW
13
0.7
SSW
14
0.7
SSW
14
0.6
SSW
14
0.7
SSW
14
0.6
SSW
13
0.6
SSW
13
0.6
SSW
17
0.6
SSW
17
0.5
SSW
16
0.7
S
21
0.8
S
20
0.9
SSW
19
Energy kJ
227
273
346
292
288
218
143
141
184
178
183
143
175
120
118
232
216
147
441
490
608
Swell 2
Height (m)
Direction
Period (s)
0.4
SSW
12
0.6
SSE
10
0.4
SE
6
0.6
SSE
9
0.5
SE
9
0.5
SE
9
0.6
SSE
10
0.6
SSE
10
0.6
SSE
10
0.6
SSE
10
0.6
SSE
10
0.5
SE
9
0.5
SE
9
0.5
SE
9
0.5
SE
9
0.5
SE
8
0.4
SSW
12
0.5
SE
8
0.7
SSW
16
0.6
SSW
15
0.6
SSW
15
Energy kJ
45
65
11
58
41
41
60
61
63
63
61
42
40
39
38
35
60
35
217
148
167
Swell 3
Height (m)
Direction
Period (s)
0.4
SE
10
0.4
SSW
11
0.4
SE
10
0.3
SSW
10
0.3
SSW
10
0.2
SSW
10
0.4
SW
14
0.3
SW
15
0.2
W
15
0.2
W
14
0.2
WNW
14
0.3
SSW
21
0.4
SSW
20
0.4
SSW
19
0.5
S
18
0.6
SSW
13
0.4
SE
6
0.5
SSW
13
0.4
SE
10
0.4
SE
10
0.4
SE
6
Energy kJ
25
42
24
20
20
9
53
35
17
15
18
83
127
118
163
114
9
93
33
23
10
Wind waves
Height (m)
Direction
Period (s)
1.6
ENE
8
1.5
ENE
8
1.4
ENE
8
1.6
ENE
8
1.9
ENE
8
1.8
ENE
8
1.6
ENE
7
1.6
ENE
7
1.7
ENE
8
1.8
ENE
8
1.8
ENE
8
1.9
ENE
8
1.7
ENE
8
1.7
ENE
8
1.7
ENE
8
1.5
ENE
8
1.5
ENE
8
1.5
ENE
8
1.7
ENE
8
1.6
ENE
8
1.8
ENE
8
Energy kJ
306
277
226
276
397
346
280
256
345
422
432
443
373
310
310
247
247
253
319
310
372
Nearest Offshore or Glassy
Rating
(10 max)
3
3
2
2
3
2
1
1
2
2
2
1
2
2
2
1
2
2
3
3
3
Distance (km)
31
31
16
31
31
16
16
16
16
31
16
16
31
16
16
33
16
16
33
16
16
Best forecast wave conditions in Kaua'i
Rating
(10 max)
3
3
2
2
3
3
2
2
2
2
2
1
2
3
2
1
3
2
3
3
3
Best forecast wave conditions in United States
Rating
(10 max)
3
3
4
4
4
4
3
2
3
2
2
3
2
3
2
2
3
3
3
3
3
Header Global
Rating
(10 max)
9
7
5
5
5
5
5
5
5
5
8
6
5
5
6
7
5
5
9
9
9
  • 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 Ammonias Surf forecast

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

Are you planning a vacation in Kaua'i? If you are looking for accommodation near Ammonias, camping, hotels and condos and appartments in Kaua'i, consider staying in Nawiliwili which is 2 km (1 miles) away. Alternatively, find information about places to stay and car hire in Lihue - Kauai which is 3 km (2 miles) away

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