Waimea Rivermouth Surf Break

Lat Long: 21.95° N 159.67° W

Waimea Rivermouth 48 hour detailed Surf Forecast

Issued: 1 pm 13 Aug 2026 (local time)

Forecast update in  hr  min

Today's Waimea Rivermouth sea temperature is
27.0° C
0.2° 

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


How big are the waves at Waimea Rivermouth today (13 Aug):

  • Morning surf: Morning surf (13 Aug, local time) - 4.5ft (1.4m), 16s period with S swell.
  • Afternoon surf: Afternoon surf (13 Aug, local time) - 4.5ft (1.3m), 16s period with S swell.
  • Evening surf: Evening surf (13 Aug, local time) - 4ft (1.2m), 15s period with S swell.

The current surf forecast for Waimea Rivermouth at 4PM is: 1.3m 16s primary swell from a South direction and 1.3m 6s secondary swell from a East direction (forecast issued at 01:00pm August 13). An open ocean swell of 0.4m 4s is not directed at the surf break. The wind direction is predicted to be cross-offshore and the swell rating is 3.

Time (HST) & DateWave HeightWave Period
Morning (13 Aug)4.5ft (1.4m)16s
Afternoon (13 Aug)4.5ft (1.3m)16s
Evening (13 Aug)4ft (1.2m)15s

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


Short Range Forecast

Light rain (total 5mm), mostly falling on Sun morning. Warm (max 28°C on Thu afternoon, min 25°C on Thu night). Mainly fresh winds.

Thu
13
Friday
14
Saturday
15
11 AM
2 PM
5 PM
8 PM
11 PM
2 AM
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
2 AM
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
Rating
(10 max)
4
3
3
3
3
3
3
3
3
3
3
3
2
3
3
3
3
3
3
3
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.3
S
16
1.3
S
16
1.3
S
15
1.2
S
15
1.2
S
15
1.2
S
15
1.2
S
15
1.2
S
15
1.1
S
15
1.1
S
14
1
S
14
1
S
14
1
S
14
1
S
14
1.8
E
8
1.9
E
8
2.1
E
9
2.3
E
9
2.4
E
9
2.5
E
10
2.5
E
10
Wave Graph
Metric surfscale
Energy kJ
868
843
794
631
623
623
623
614
510
496
411
405
405
394
422
513
641
823
979
1108
1292
Wind (km/h)
5
ENE
5
ENE
10
NE
10
ENE
15
NE
10
NE
10
NE
10
NE
10
E
15
ENE
10
ENE
10
NE
20
NE
15
ENE
10
NE
10
ENE
15
ENE
20
ENE
20
ENE
20
NE
20
ENE
Wind State
cross-off
cross-off
off
cross-off
cross-off
cross-off
cross-off
off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
High Tide
4:42PM0.59m
4:51AM0.34m
5:12PM0.53m
5:42AM0.37m
5:39PM0.46m
Low Tide
9:46AM-0.01m
11:24PM0.09m
10:32AM0.05m
11:48PM0.08m
11:20AM0.12m
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:15
6:16
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:10
7:09
7:08
 mm
Temp °C
27
28
28
26
25
25
25
26
27
28
28
26
25
25
25
26
27
28
28
27
26
Feels °C
28
29
29
28
26
26
26
27
28
28
29
27
25
26
27
28
28
28
28
27
26
  • 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
How to use the Wavefinder 

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