Ammonias surfForecast / HAW – Kaua'i / USA

information circle48hr Weather and Surf, issued 7 pm Monday 23 Mar 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
24.7° C
(Which is slightly warmer than usual)

How big are the waves at Ammonias today?

The current surf forecast for Ammonias at 1AM is: 1.7m 6s primary swell from a Northeast direction and 0.6m 14s secondary swell from a South-southwest direction (forecast issued at 07:00pm March 23). An open ocean swell of 0.7m 11s is not directed at the surf break. The wind direction is predicted to be cross-shore.

Time (HST) & DateWave HeightWave Period
Morning (24 Mar)2ft (0.6m)14s
Afternoon (24 Mar)1.5ft (0.4m)14s
Evening (24 Mar)1.5ft (0.4m)13s

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


Updates in  hr  min  s Forecast update imminent
Monday
23
Tuesday
24
Wednesday
25
Thursday
26
5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM
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
Wave Height (m) & direction (?)
0.6
SSW
0.6
SSW
0.6
SSW
1.6
NE
0.6
SSW
0.6
SSW
0.6
SSW
0.4
SSW
0.4
SSW
0.4
SSW
0.4
SSW
0.4
SSW
0.4
SW
0.4
SW
0.4
SW
0.4
SW
0.4
SW
0.4
SW
0.4
SW
0.4
SW
0.4
SW
1.6
NE
1.6
NE
1.6
NE
Period(s) (?)14141461414141414131313131313131313131313888
Wave
Graph
(?)Metric surfscale
Energy kJ (?)1381381381811361341337571706968444342414141424242000
Wind
(km/h)
30
NE
25
NE
30
NE
30
NE
25
NE
25
NE
30
NE
30
NE
30
NE
30
NE
30
NE
30
NE
25
NE
25
NE
25
NE
25
NE
25
NE
30
NE
25
NE
20
NE
20
NE
15
NE
20
NE
20
NE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscrosscrosscrosscrosscrosscrosscrosscrosscrosscrosscrosscrosscrosscrosscrosscrosscrosscrosscrosscrosscrosscrosscross
High Tide
/ height (m)
8:23PM
0.54
9:47PM
0.54
11:05PM
0.54
11:16AM
0.12
Low Tide
/ height (m)
12:56PM
-0.03
2:13PM
0.01
7:42AM
0.08
Monday
23
Tuesday
24
Wednesday
25
Thursday
26
Sunrise-----6:37-------6:35-------6:35--
Sunset6:49-------6:49-------6:50-------
clear
clear
clear
clear
rain showers
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
part cloud
cloud
clear
clear
clear
clear
clear
Rain (mm)
----1-------------------
Temp. °C232222222122222322222221212122222221212121222323
Feels °C (?)201919191819192018181817181719191917171819212121
  • 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

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Ammonias surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


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