Avalanche surfForecast / HAW – Oahu / USA

information circle48hr Weather and Surf, issued 1 am Wednesday 18 Feb 2026 HST
Forecast update in hr  min  s Forecast update imminent
Avalanche surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Avalanche sea temperature is
24.5° C
(Which is normal for this time of year)


How big are the waves at Avalanche today?

The current surf forecast for Avalanche at 4AM is: 0.2m 12s primary swell from a West-northwest direction (forecast issued at 01:00am February 18). An open ocean swell of 0.2m 13s is not directed at the surf break, a second open ocean swell of 2.0m 10s is not directed at the surf break. The wind direction is predicted to be offshore.

Time (HST) & DateWave HeightWave Period
Morning (18 Feb)1ft (0.3m)11s
Afternoon (18 Feb)4.5ft (1.4m)10s
Evening (18 Feb)4.5ft (1.4m)10s

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

Updates in  hr  min  s Forecast update imminent
Wednesday
18
Thursday
19
Friday
20
11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM
Rating
(10 max)
1
0
0
0
0
1
1
1
0
0
1
0
0
0
0
0
1
0
0
1
1
1
2
2
Swell
Height Map
Wave Height (m) & direction (?)
1.6
NE
0.2
WNW
0.2
WNW
0.3
NW
0.2
WNW
1.4
NE
1.5
NE
1.4
NE
0.6
NW
0.6
NW
0.7
NW
0.7
NW
0.7
NW
0.7
NW
0.7
NW
1.3
NE
1.3
NE
0.6
NW
0.6
NW
1.3
NE
1.2
NE
1.1
NE
1.2
NE
1.2
NE
Period(s) (?)1012121111101010131313121212121010111199999
Wave
Graph
(?)Metric surfscale
Energy kJ (?)450141420123614083651031361611511461441412902908279278241211242237
Wind
(km/h)
35
E
35
E
30
E
35
E
35
E
35
E
30
E
35
E
35
E
35
E
35
E
30
E
35
E
35
E
35
E
30
E
30
E
30
E
30
E
30
E
25
E
30
E
25
E
25
E
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
offoffoffoffoffoffoffoffoffoffoffoffoffcross-
off
cross-
off
cross-
off
offoffoffoffoffoffoffoff
High Tide
/ height (m)
3:39AM
0.45
4:04PM
0.28
4:08AM
0.41
4:50PM
0.31
4:38AM
0.35
5:42PM
0.35
Low Tide
/ height (m)
9:14AM
-0.03
8:40PM
-0.00
9:38AM
-0.04
9:33PM
0.04
10:04AM
-0.04
Wednesday
18
Thursday
19
Friday
20
Sunrise---7:01-------7:00-------7:00----
Sunset------6:30-------6:31-------6:31-
part cloud
part cloud
part cloud
clear
clear
part cloud
cloud
part cloud
part cloud
cloud
cloud
part cloud
part cloud
clear
part cloud
part cloud
part cloud
cloud
cloud
light rain
rain showers
rain showers
thunderstorm
thunderstorm
Rain (mm)
-------------------11113
Temp. °C222222222323222222222222232323222222222223232321
Feels °C (?)181718171718181717171818181819181819191920202119
  • 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

Latest Updates

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 Avalanche 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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