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Surf Forecasts:

Ammonias surfForecast / HAW – Kaua'i / USA

information circle48hr Weather and Surf, issued 1 am Thursday 15 Jan 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
25.4° C
 (Which is 1.1°C warmer than normal for this time of year)

How big are the waves at Ammonias today?

The current surf forecast for Ammonias at 4AM is: 0.9m 6s primary swell from a Southwest direction (forecast issued at 01:00am January 15). An open ocean swell of 1.5m 12s is not directed at the surf break, a second open ocean swell of 0.8m 5s is not directed at the surf break. The wind direction is predicted to be offshore.

Time (HST) & DateWave HeightWave Period
Morning (15 Jan)2ft (0.6m)6s
Afternoon (15 Jan)1.5ft (0.4m)6s
Evening (15 Jan)1ft (0.3m)8s

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

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table
Thursday
15
Friday
16
Saturday
17
11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM
Rating
(10 max)
2
2
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
1.7
WSW
1.5
WSW
0.9
SW
0.6
SW
0.4
SSE
0.4
SE
0.3
E
0.3
E
0.2
S
0.3
E
0.2
SSW
0.2
S
1.1
ENE
0.1
SW
0.3
E
1.2
ENE
0.1
SW
0.1
SW
1.2
ENE
1.2
ENE
1.5
ENE
1.5
ENE
1.5
ENE
1.6
ENE
Period(s) (?)766666881281612614861414556666
Wave
Graph
(?)Metric surfscale
Energy kJ (?)261183642813121212121224117471090887484130135135176
Wind
(km/h)
20
NNW
15
NW
15
NW
15
NW
20
NNW
25
N
30
N
30
NNE
30
NNE
30
NNE
25
NNE
25
NE
25
NE
25
NE
25
NE
20
NE
20
NE
25
NE
25
NE
25
ENE
25
ENE
25
ENE
25
ENE
20
ENE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
offoffoffoffcross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		crosscrosscrosscrosscrosscrosscrosscrosscrosscross-
on		cross-
on		cross-
on		cross-
on
High Tide
/ height (m)
2:28AM
0.62
1:23PM
0.17
3:01AM
0.64
2:04PM
0.19
3:33AM
0.66
2:40PM
0.20
Low Tide
/ height (m)
10:22AM
0.14
7:01PM
-0.03
10:32AM
0.13
7:43PM
-0.05
10:47AM
0.13
Thursday
15
Friday
16
Saturday
17
Sunrise---7:18-------7:18-------7:18----
Sunset------6:15-------6:15-------6:15-
rain showers
rain showers
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
cloud
cloud
part cloud
clear
clear
part cloud
cloud
cloud
Rain (mm)
31----------------------
Temp. °C222221202221201919191919202121202020202022222221
Feels °C (?)212119181916141314131414151717171616161517171817
  • 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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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.

View detailed surf forecast for Ammonias at:
surf-forecast.com

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