Ammonias surfForecast / HAW – Kaua'i / USA

information circle48hr Weather and Surf, issued 1 pm Tuesday 18 Nov 2025 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
26.0° C
(Which is normal for this time of year)


How big are the waves at Ammonias today?

The current surf forecast for Ammonias at 5PM is: 0.8m 7s primary swell from a East-northeast direction and 0.4m 7s secondary swell from a Southeast direction (forecast issued at 01:00pm November 18). An open ocean swell of 0.4m 12s is not directed at the surf break. The wind direction is predicted to be cross-shore.

Time (HST) & DateWave HeightWave Period
Morning (18 Nov)2.5ft (0.7m)7s
Afternoon (18 Nov)2.5ft (0.8m)7s
Evening (18 Nov)3ft (0.9m)7s

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

Updates in  hr  min  s Forecast update imminent
Tuesday
18
Wednesday
19
Thursday
20
Friday
21
11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM
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
1
0
Swell
Height Map
Wave Height (m) & direction (?)
0.7
ENE
0.8
ENE
0.8
ENE
0.9
ENE
0.9
ENE
1.1
ENE
1.3
ENE
1.4
ENE
1.6
ENE
1.6
E
1.9
E
2.2
E
2.3
E
2.2
E
2.2
E
2.4
E
2.1
E
2
E
2.2
ENE
2.3
ENE
2.2
E
2
E
1.8
ENE
1.9
ENE
Period(s) (?)777745566677788888888888
Wave
Graph
(?)Metric surfscale
Energy kJ (?)48535775335998131192200326501578566566724573496542592566496427480
Wind
(km/h)
15
NE
15
NE
20
NE
20
NE
25
ENE
25
ENE
25
ENE
25
ENE
25
ENE
25
ENE
25
ENE
25
ENE
30
ENE
25
ENE
25
ENE
25
E
25
ENE
30
ENE
30
ENE
25
ENE
25
ENE
20
ENE
20
ENE
20
ENE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscrosscrosscrosscross-
on
cross-
on
crosscrosscrosscross-
on
cross-
on
crosscross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
crosscross-
on
High Tide
/ height (m)
1:55PM
0.28
3:29AM
0.66
2:22PM
0.25
4:00AM
0.68
2:49PM
0.23
4:33AM
0.68
Low Tide
/ height (m)
9:48AM
0.20
7:50PM
-0.01
10:32AM
0.18
8:15PM
-0.01
11:15AM
0.18
8:43PM
-0.01
Tuesday
18
Wednesday
19
Thursday
20
Friday
21
Sunrise-------6:50-------6:52-------6:52
Sunset--5:52-------5:52-------5:52-----
thunderstorm
clear
clear
clear
thunderstorm
clear
part cloud
part cloud
rain showers
thunderstorm
rain showers
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
rain showers
part cloud
cloud
light rain
part cloud
part cloud
Rain (mm)
1---1---11212122111--1--
Temp. °C252525242424242424242424242424242525242424242424
Feels °C (?)262525242423232322232223232323232423222323242424
  • 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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