Rivermouth_Wailuku surfForecast / HAW – Maui / USA

information circle12 Day Weather and Surf, issued 7 pm Saturday 10 Jan 2026 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
25.4° 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 Sunday (Jan 11) at 2AM. The primary swell is predicted to be 2.0m and 14s period with a secondary swell of 1.6m and 17s. 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 3.5m 16s and forecast to arrive on Thursday (Jan 15) at 11PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 5s period and expected on Wednesday (Jan 14) at 2PM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Sun 11th Jan)6.5ft (2.0m) 14s
Best Surf 5AM (Sun 11th Jan)8ft (2.5m) 17s
Most Powerful11PM (Thu 15th Jan)11ft (3.5m) 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 6mm), mostly falling on Mon afternoon. Warm (max 25°C on Mon morning, min 21°C on Mon night). Wind will be generally light.

Days 3-6 Weather Summary Light rain (total 8mm), mostly falling on Wed night. Warm (max 24°C on Wed morning, min 19°C on Thu morning). Winds increasing (light winds from the SSW on Tue night, fresh winds from the ENE by Fri morning).

Sunday
11
Monday
12
Tuesday
13
Wednesday
14
Thursday
15
Friday
16
Sat
17
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
4
4
4
4
4
0
0
2
1
3
4
2
2
2
1
0
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
2
NNW
2.2
NNW
2.1
NNW
2
NNW
2
NNW
3
NNW
3
NW
3
NW
2.5
NNW
2.2
NW
1.9
NW
1.6
NW
1.2
NW
1.7
NW
2.1
NW
3.5
NW
3
NNW
3
NNW
2.4
NNW
1.9
NNW
1.8
NNW
Period(s) (?)141615141316151414131313121212161514131413
Wave
Graph
(?)Metric surfscale
Energy kJ (?)146524792144151614224796446230602668163411478644288331272520143343456197913061106
Wind
(km/h)
5
E
0
WNW
5
ESE
20
SW
5
W
25
N
25
NNE
20
NE
15
ENE
10
ESE
15
SW
25
SSW
20
SW
10
ENE
20
NE
25
NE
30
ENE
25
ENE
25
ENE
30
ENE
25
ENE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
glassglassglassoffcross-
off
ononcross-
on
cross-
on
crosscross-
off
offoffcross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
High Tide
/ height (m)
10:54PM
0.45
6:14AM
0.44
12:02AM
0.53
12:39AM
0.59
1:10AM
0.65
10:15AM
0.30
1:39AM
0.69
11:34AM
0.31
2:08AM
0.73
12:26PM
0.33
2:37AM
0.76
1:09PM
0.35
Low Tide
/ height (m)
2:59AM
0.42
3:04PM
0.07
3:58PM
0.04
4:50PM
0.00
8:34AM
0.30
5:38PM
-0.04
8:35AM
0.27
6:20PM
-0.08
8:51AM
0.25
6:58PM
-0.12
9:12AM
0.23
7:34PM
-0.14
Sunday
11
Monday
12
Tuesday
13
Wednesday
14
Thursday
15
Friday
16
Sat
17
Sunrise-7:05--7:05--7:05--7:05--7:05--7:05--7:05-
Sunset--6:01--6:02--6:04--6:04--6:05--6:06--6:06
clear
clear
clear
clear
clear
mod rain
part cloud
part cloud
part cloud
part cloud
rain showers
clear
rain showers
light rain
light rain
part cloud
part cloud
part cloud
rain showers
rain showers
part cloud
Rain (mm)
-----6----1-331---21-
Temp. °C232424232522222222222424242121222323222323
Feels °C (?)252726262721202021222522232120192021202020
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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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