Waimea Rivermouth surfForecast / HAW – Kaua'i / USA

information circle48hr Weather and Surf, issued 7 am Friday 20 Mar 2026 HST
Forecast update in hr  min  s Forecast update imminent
Waimea Rivermouth surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Waimea Rivermouth sea temperature is
24.7° C
(Which is slightly warmer than usual)

How big are the waves at Waimea Rivermouth today?

The current surf forecast for Waimea Rivermouth at 3PM is: 0.7m 13s primary swell from a South direction (forecast issued at 07:00am March 20). An open ocean swell of 1.3m 11s is not directed at the surf break. The wind direction is predicted to be onshore.

Time (HST) & DateWave HeightWave Period
Morning (20 Mar)2.5ft (0.7m)13s
Afternoon (20 Mar)2.5ft (0.7m)13s
Evening (20 Mar)2ft (0.6m)12s

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


Updates in  hr  min  s Forecast update imminent
Friday
20
Saturday
21
Sunday
22
Mon
23
5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM
Rating
(10 max)
1
0
0
0
0
0
1
1
1
0
1
1
1
1
0
0
0
0
0
0
0
0
2
0
Swell
Height Map
Wave Height (m) & direction (?)
0.7
S
0.7
S
0.7
S
0.7
S
0.6
S
0.6
S
0.6
S
0.6
S
0.6
S
0.6
S
0.6
W
0.6
SSW
0.7
SSW
0.7
SSW
1.3
N
0.9
WNW
0.9
WNW
0.9
WNW
0.9
WNW
0.9
WNW
0.9
WNW
0.8
WNW
0.7
SSW
0.3
E
Period(s) (?)13131313131212121212131818181116151414141414166
Wave
Graph
(?)Metric surfscale
Energy kJ (?)167167165162116109107109109107125209276273000000002207
Wind
(km/h)
10
SSW
10
SW
10
SSW
10
SSW
5
WSW
10
WNW
5
SSE
5
SSW
5
SSW
5
SW
10
SW
10
WSW
5
WSW
5
SW
5
SW
5
SSW
5
NW
5
NNW
5
W
5
W
5
NW
5
NNE
5
ENE
5
NE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
ononononcross-
on
crossglassglassglasscross-
on
oncross-
on
cross-
on
cross-
on
glassglassglassglassglasscrosscross-
off
glassglassoff
High Tide
/ height (m)
4:22AM
0.32
5:24PM
0.44
4:48AM
0.26
6:15PM
0.46
5:11AM
0.20
7:14PM
0.46
Low Tide
/ height (m)
10:38AM
-0.08
11:42PM
0.08
11:05AM
-0.09
12:52AM
0.12
11:37AM
-0.08
Friday
20
Saturday
21
Sunday
22
Mon
23
Sunrise-6:41-------6:41-------6:41------
Sunset----6:49-------6:50-------6:50---
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
cloud
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
clear
cloud
cloud
Rain (mm)
121113-11111111111111---
Temp. °C242425252524242323232425252423222323242424242323
Feels °C (?)272627282826272626252627272725252625272626272525
  • 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 Waimea Rivermouth 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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