Rivermouth_Wailuku surfForecast / HAW – Maui / USA

information circle12 Day Weather and Surf, issued 7 pm Saturday 06 Dec 2025 HST
Forecast update in hr  min  s Forecast update imminent
Rivermouth_Wailuku surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Rivermouth_Wailuku sea temperature is
26.0° C
(Which is slightly warmer than usual)


Best Forecast Surf Conditions for Rivermouth_Wailuku this week:

The surf forecast for Rivermouth_Wailuku over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Dec 10) at 5AM. The primary swell is predicted to be 1.9m and 16s period with a secondary swell of 0.8m and 8s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Rivermouth_Wailuku in the next 12 days are 1.9m 16s and forecast to arrive on Wednesday (Dec 10) at 5AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.1m 15s period and expected on Saturday (Dec 06) at 11PM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+) 5AM (Wed 10th Dec)6ft (1.9m) 16s
Best Surf 5AM (Wed 10th Dec)6ft (1.9m) 16s
Most Powerful 5AM (Wed 10th Dec)6ft (1.9m) 16s

Table - best surf conditions forecast for Rivermouth_Wailuku over the next 12 days.

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Light rain (total 3mm), mostly falling on Sun afternoon. Warm (max 25°C on Mon morning, min 22°C on Sun night). Wind will be generally light.

Days 3-6 Weather Summary Light rain (total 2mm), mostly falling on Fri afternoon. Warm (max 25°C on Wed morning, min 21°C on Fri afternoon). Wind will be generally light.

Sunday
07
Monday
08
Tuesday
09
Wednesday
10
Thursday
11
Friday
12
Sat
13
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
0
1
0
0
0
0
0
1
2
3
4
3
4
3
3
3
1
0
1
0
0
Swell
Height Map
Wave Height (m) & direction (?)
1.2
NNW
1.1
NNW
1.1
NNW
0.9
NNW
0.8
NNW
0.6
NW
0.7
NW
0.8
NW
1.3
NW
1.3
NNW
2
NW
1.9
NW
1.7
NW
1.5
NW
1.5
NW
1.6
NW
1.3
NNW
1.6
NNW
1.7
N
1.6
NNW
1.4
NNW
Period(s) (?)121212121115151414171614131312121212111111
Wave
Graph
(?)Metric surfscale
Energy kJ (?)440359350203140183215221586963193315331027734667718449658720626460
Wind
(km/h)
15
ENE
10
ENE
15
ENE
15
E
15
E
15
ENE
15
E
5
E
10
NE
5
E
5
S
5
NNW
5
SW
5
WNW
5
NNW
5
S
10
NNW
15
NNE
15
NNE
15
NNE
15
NE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
crossglasscross-
on
offglassglassglasscross-
on
onononon
High Tide
/ height (m)
4:45AM
0.87
2:53PM
0.34
5:34AM
0.82
3:42PM
0.31
6:23AM
0.75
5:03PM
0.28
7:11AM
0.68
7:31PM
0.28
7:56AM
0.62
10:04PM
0.35
8:37AM
0.56
11:24PM
0.45
9:14AM
0.50
Low Tide
/ height (m)
8:57PM
-0.17
11:57AM
0.30
9:40PM
-0.10
1:09PM
0.29
10:24PM
-0.01
2:23PM
0.27
11:11PM
0.10
3:17PM
0.23
12:11AM
0.21
3:52PM
0.19
1:49AM
0.31
4:18PM
0.14
3:55AM
0.37
4:42PM
0.09
Sunday
07
Monday
08
Tuesday
09
Wednesday
10
Thursday
11
Friday
12
Sat
13
Sunrise-6:48--6:50--6:50--6:50--6:52--6:52--6:52-
Sunset--5:44--5:44--5:45--5:45--5:45--5:45--5:45
part cloud
clear
thunderstorm
clear
clear
clear
clear
clear
rain showers
part cloud
clear
clear
clear
clear
clear
clear
clear
light rain
light rain
cloud
part cloud
Rain (mm)
--2-----1--------21--
Temp. °C242424232525232424232525242424232422222222
Feels °C (?)252524232525232625252727272525252422222121
  • 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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Information about the Rivermouth_Wailuku Surf forecast

The above surf forecast table for Rivermouth_Wailuku provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Rivermouth_Wailuku can be found by selecting the local surf guide option on the grey menu. Our Rivermouth_Wailuku surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Rivermouth_Wailuku) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for Rivermouth_Wailuku may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

Rivermouth_Wailuku is 4 km (2 miles) from Wailuku. If you plan a vacation in Maui, look for hotels and other accommodation in Wailuku. Wailuku has rooms for a wide range of budgets as well as car hire and transport links.

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