Avalanche surfForecast / HAW – Oahu / USA

information circle48hr Weather and Surf, issued 1 am Friday 15 May 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
25.2° C
(Which is normal for this time of year)

How big are the waves at Avalanche today?

The current surf forecast for Avalanche at 8AM is: 1.2m 13s primary swell from a Northwest direction (forecast issued at 01:00am May 15). An open ocean swell of 0.8m 7s is not directed at the surf break. The wind direction is predicted to be offshore and the swell rating is 2.

Time (HST) & DateWave HeightWave Period
Morning (15 May)3.5ft (1.1m)13s
Afternoon (15 May)3.5ft (1.0m)12s
Evening (15 May)3ft (0.9m)12s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Moderate rain (total 15mm), heaviest on Fri afternoon. Warm (max 26°C on Sun afternoon, min 23°C on Fri night). Wind will be generally light.

Friday
15
Saturday
16
Sunday
17
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
2 AM
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
Rating
(10 max)
3
3
2
3
2
2
2
1
1
1
1
1
2
2
1
1
1
1
1
1
1
1
1
0
Swell
Height Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
1.4
NW
13
1.2
NW
13
1.2
NW
13
1.1
NW
12
1
NW
12
1
NW
12
0.9
NW
12
0.8
NW
12
0.7
NW
11
0.7
NW
11
0.7
NW
11
0.6
NW
11
0.5
SW
14
0.5
SW
14
0.5
SW
14
0.6
NNW
10
0.6
NNW
10
0.6
NNW
10
0.6
NNW
10
0.6
NNW
10
0.6
NNW
10
0.7
NE
8
0.5
SW
21
0.4
NNW
9
Wave Graph
Metric surfscale
Energy kJ
642
501
479
386
287
282
205
161
126
123
123
96
102
103
102
71
68
69
69
68
65
63
224
35
Wind (km/h)
20
E
15
ESE
15
ESE
5
ENE
10
NE
10
SE
15
E
10
ESE
15
E
15
E
15
E
10
ESE
10
E
10
ENE
15
E
15
E
10
E
10
E
10
E
15
ENE
15
ENE
15
ENE
20
E
15
E
off
off
off
cross-off
cross-off
cross-off
off
off
off
cross-off
cross-off
off
cross-off
cross-off
cross-off
off
off
off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
High Tide
1:21AM0.21m
2:31PM0.57m
2:07AM0.17m
3:16PM0.60m
2:55AM0.13m
4:02PM0.61m
Low Tide
6:08AM-0.09m
8:32PM0.02m
6:43AM-0.10m
9:31PM0.01m
7:21AM-0.10m
10:30PM0.01m
rain showers
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
part cloud
part cloud
part cloud
part cloud
part cloud
thunderstorm
thunderstorm
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:52
5:52
5:52
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:02
7:04
7:04
1
1
1
2
4
5
1
1
1
Temp °C
23
23
24
24
25
24
23
24
24
24
24
25
25
25
24
24
24
24
24
25
26
25
24
24
22
23
25
26
26
25
23
25
25
25
25
27
27
27
25
26
26
26
26
26
27
26
25
25
Swell 1
Height (m)
Direction
Period (s)
1.4
NW
13
1.2
NW
13
1.2
NW
13
1.1
NW
12
1
NW
12
1
NW
12
0.9
NW
12
0.8
NW
12
0.7
NW
11
0.7
NW
11
0.7
NE
8
0.8
NE
8
0.8
NE
8
0.8
NE
8
0.8
NE
8
0.8
NE
7
0.7
NE
7
0.7
NE
7
0.7
SSE
11
0.7
SSE
11
0.8
SSW
15
0.8
SSW
15
0.8
SSW
15
0.8
SSW
15
Energy kJ
642
501
479
386
287
282
205
161
126
123
57
82
82
67
67
65
54
52
105
105
249
249
246
242
Swell 2
Height (m)
Direction
Period (s)
0.9
NE
8
0.9
NE
7
0.8
ENE
7
0.7
NE
7
0.6
NE
7
0.8
NE
7
0.4
SSW
16
0.7
ENE
7
0.7
NE
7
0.6
NE
8
0.7
NW
11
0.6
NW
11
0.6
NW
11
0.6
NW
11
0.6
NNW
11
0.6
NNW
10
0.6
NNW
10
0.6
NNW
10
0.6
NNW
10
0.7
NE
8
0.7
NE
8
0.7
NE
8
0.7
NE
8
0.4
SSE
7
Energy kJ
99
73
70
53
41
59
100
47
56
45
123
96
94
94
75
71
68
69
69
61
63
63
64
18
Swell 3
Height (m)
Direction
Period (s)
0.5
SW
16
0.5
SW
16
0.6
SSW
16
0.5
SW
16
0.6
SSW
16
0.6
SSW
16
0.4
N
8
0.5
N
6
0.4
SW
14
0.4
SSW
16
0.6
SSW
16
0.6
SSW
15
0.5
SW
14
0.5
SW
14
0.5
SW
14
0.4
SSW
17
0.4
SSW
15
0.6
SSW
14
0.6
SSW
14
0.6
NNW
10
0.6
NNW
10
0.5
NNW
10
0.5
SW
21
0.4
NNW
9
Energy kJ
132
129
171
124
169
169
20
21
48
103
162
152
102
103
102
109
87
138
138
68
65
55
224
35
Wind waves
Height (m)
Direction
Period (s)
0.9
ENE
7
0.7
NE
8
Energy kJ
86
67
Nearest Offshore or Glassy
Rating
(10 max)
3
3
2
3
2
2
2
1
1
1
1
1
2
2
1
1
1
1
1
1
1
1
1
1
Distance (km)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
6
0
0
0
0
0
0
0
6
6
Best forecast wave conditions in Oahu
Rating
(10 max)
3
3
3
3
2
2
2
2
2
3
2
1
3
3
2
2
1
2
2
1
1
1
2
1
Best forecast wave conditions in United States
Rating
(10 max)
4
3
3
3
2
2
2
2
2
4
2
1
3
4
3
5
3
9
2
2
1
1
8
5
Header Global
Rating
(10 max)
5
6
5
5
5
5
5
4
6
6
5
5
4
5
5
5
9
9
7
4
4
5
8
6
  • 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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