Kanaha surfForecast / HAW – Maui / USA

information circle48hr Weather and Surf, issued 1 am Monday 18 Aug 2025 HST
Forecast update in hr  min  s Forecast update imminent
Kanaha surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Kanaha sea temperature is
26.8° C
(Which is normal for this time of year)


How big are the waves at Kanaha today?

The current surf forecast for Kanaha at 4AM is: 0.9m 7s primary swell from a East direction and 0.9m 7s secondary swell from a Northeast direction, 0.2m 11s secondary swell from a West-northwest direction (forecast issued at 01:00am August 18). The wind direction is predicted to be cross-offshore.

Time (HST) & DateWave HeightWave Period
Morning (18 Aug)3.5ft (1.0m)7s
Afternoon (18 Aug)4.5ft (1.3m)7s
Evening (18 Aug)4ft (1.2m)7s

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

Updates in  hr  min  s Forecast update imminent
Monday
18
Tuesday
19
Wednesday
20
11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
1.3
ENE
0.9
E
0.9
NE
1
E
1.1
E
1.3
ENE
1.1
E
1.1
E
1.2
E
1.2
E
1.2
E
1.2
E
1.3
ENE
1.4
ENE
1.2
ENE
1.1
ENE
1
ENE
1
ENE
1.2
ENE
0.1
NW
0.1
NW
0.1
N
0.1
N
0.2
N
Period(s) (?)777777777777777777799121111
Wave
Graph
(?)Metric surfscale
Energy (?)161140153165183171174173178189176179191198161129111114134558812
Wind
(km/h)
15
E
15
E
15
E
15
E
15
ENE
15
E
20
ENE
20
E
20
E
20
E
20
ENE
20
ENE
20
ENE
20
E
25
NE
20
ENE
20
ENE
20
ENE
15
ENE
15
ENE
20
ENE
25
ENE
25
ENE
20
ENE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
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
cross-
off
crosscross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
High Tide
/ height (m)
12:32PM
0.87
10:32PM
0.41
1:12PM
0.92
12:03AM
0.45
1:47PM
0.94
Low Tide
/ height (m)
3:57AM
0.16
8:32PM
0.40
5:14AM
0.13
8:23PM
0.37
6:13AM
0.09
Monday
18
Tuesday
19
Wednesday
20
Sunrise---6:05-------6:05-------6:05----
Sunset------6:52-------6:52-------6:51-
clearclearclearclearclearclearclearclearclearclearclearclearclearclearpart cloudpart cloudpart cloudpart cloudpart cloudpart cloudpart cloudclearclearclear
Rain (mm)
------------------------
Temp. °C252525262727262625252425262726252525242526272725
Feels °C (?)262627272828272726262425262725252526242626262625
  • 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

Eyeball surf reportRecent Eyeball Surf Reports for HAW - Maui

  1. weather stationWind Update Still cross-shore at Kanaha (light winds from the NE at Kahului Airport 1 km from Kanaha). 1.1m 6s windswell from the ENE with a 0.5m 8s swell from the NE. 2 swells combining to make bigger set waves.

    Kanaha
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2 h 7 min ago

11 km/h
NE
Cross-Shore
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