Avalanche surfForecast / Oregon South / USA

information circle16 Day Weather and Surf, issued 4 pm Monday 18 May 2026 PDT
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
12.7° C
(Which is slightly warmer than usual)

Best Forecast Surf Conditions for Avalanche this week:

The surf forecast for Avalanche over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (May 19) at 2AM. The primary swell is predicted to be 2.1m and 14s period with a secondary swell of 0.4m and 16s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Avalanche in the next 16 days are 2.1m 15s and forecast to arrive on Monday (May 18) at 11PM. Winds are predicted to be cross-shore at the time the swell arrives.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Tue 19th May)7ft (2.1m) 14s
Best Surf 2AM (Tue 19th May)7ft (2.1m) 14s
Most Powerful11PM (Mon 18th May)7ft (2.1m) 15s

Table - best surf conditions forecast for Avalanche over the next 16 days.


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Mostly dry. Very mild (max 14°C on Tue afternoon, min 9°C on Mon night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Very mild (max 14°C on Fri morning, min 8°C on Sat night). Wind will be generally light.

Mon
18
Tuesday
19
Wednesday
20
Thursday
21
Friday
22
Saturday
23
Sunday
24
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
Rating
(10 max)
1
4
3
1
2
1
1
2
1
0
0
0
0
2
0
1
2
2
2
3
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
2
WNW
16
2.1
WNW
14
2
WNW
13
1.8
WNW
13
2
WNW
13
1.9
WNW
12
1.3
WNW
12
1.8
NW
8
1.6
NW
8
1.7
NNW
7
1.7
NNW
7
1.4
WNW
11
1
WNW
11
2
NW
8
2.1
NW
9
2.3
NW
9
2.1
NW
8
1
WNW
15
1.4
WNW
13
1.5
WNW
13
1.3
WNW
12
Wave Graph
Metric surfscale
Energy kJ
1928
1797
1326
1120
1211
988
446
406
276
297
289
441
218
558
611
872
574
443
722
711
500
Wind (km/h)
25
NNW
10
NNE
10
NW
20
NNW
20
N
20
NNW
25
NNW
15
N
20
NNW
25
NNW
20
N
20
NNW
25
NNW
15
N
20
NNW
25
NNW
15
N
10
NNW
15
NNW
5
SE
10
WSW
cross
cross-off
cross-on
cross-on
cross
cross-on
cross
cross
cross
cross
cross
cross-on
cross
cross
cross-on
cross
cross
cross-on
cross-on
glassy
on
High Tide
2:59PM1.99m
1:47AM2.75m
3:55PM1.96m
2:40AM2.61m
4:53PM1.94m
3:37AM2.40m
5:52PM1.94m
4:42AM2.16m
6:49PM1.98m
5:55AM1.92m
7:42PM2.06m
7:17AM1.73m
8:29PM2.15m
8:39AM1.62m
Low Tide
7:56PM0.91m
9:09AM-0.72m
8:52PM0.95m
10:02AM-0.61m
9:55PM0.97m
10:58AM-0.44m
11:08PM0.95m
11:54AM-0.24m
00:29AM0.87m
12:51PM-0.04m
1:50AM0.70m
1:46PM0.17m
3:01AM0.48m
clear
clear
cloud
part cloud
part cloud
clear
part cloud
part cloud
clear
clear
part cloud
clear
clear
clear
part cloud
cloud
clear
part cloud
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:43
5:43
5:41
5:41
5:39
5:39
5:39
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:39
8:40
8:42
8:44
8:45
8:45
8:46
8:47
Temp °C
12
11
13
14
11
12
12
11
13
13
11
14
14
11
13
14
11
14
14
12
14
7
7
11
11
7
7
7
7
9
8
7
10
9
7
9
9
6
11
10
11
12
Swell 1
Height (m)
Direction
Period (s)
2
WNW
16
2.1
WNW
14
2
WNW
13
1.8
WNW
13
2
WNW
13
1.9
WNW
12
1.3
WNW
12
1
WNW
11
1
WNW
11
1
WNW
10
0.9
WNW
10
1.4
WNW
11
1
WNW
11
2
NW
8
0.4
SW
15
0.5
SW
15
0.7
WNW
16
1
WNW
15
1.4
WNW
13
1.5
WNW
13
1.3
WNW
12
Energy kJ
1928
1797
1326
1120
1211
988
446
226
214
208
135
441
218
558
75
109
229
443
722
711
500
Swell 2
Height (m)
Direction
Period (s)
0.2
WSW
18
0.4
SW
16
0.4
SW
16
0.4
SW
16
0.4
SW
16
0.4
SW
16
0.4
SW
21
0.4
SW
16
0.4
SW
15
0.4
WSW
19
0.4
SW
15
0.5
SW
15
0.5
SW
18
0.4
SW
15
0.1
W
23
0.1
NW
19
0.5
SW
16
0.8
WNW
9
0.4
SW
16
0.4
SW
16
0.4
SW
15
Energy kJ
30
67
69
68
68
66
117
64
57
148
56
112
150
54
11
14
121
96
89
87
75
Swell 3
Height (m)
Direction
Period (s)
0.2
SSW
13
0.1
W
26
0.1
W
24
0.2
WSW
24
0.1
W
24
0.2
WSW
21
0.4
SW
16
0.1
SW
21
0.2
WSW
19
0.4
SW
15
0.2
WNW
12
0.4
SW
18
0.1
W
23
0.1
W
22
0.5
SW
16
0.1
SW
20
0.3
SW
18
Energy kJ
17
13
11
54
11
45
64
18
37
55
15
80
10
9
122
15
52
Wind waves
Height (m)
Direction
Period (s)
0.6
NNW
3
1.5
NW
7
1.8
NW
8
1.6
NW
8
1.7
NNW
7
1.7
NNW
7
0.9
NNW
7
1.5
NNW
7
2.1
NW
9
2.3
NW
9
2.1
NW
8
1.7
NNW
8
1.7
NNW
8
1.4
NNW
6
1
NNW
6
Energy kJ
8
204
406
276
297
289
84
211
611
872
574
403
345
165
62
Nearest Offshore or Glassy
Rating
(10 max)
4
4
2
2
3
1
1
3
1
3
2
1
3
3
1
2
3
3
4
3
1
Distance (km)
592
8
388
875
121
388
388
8
388
517
121
388
518
8
323
322
8
263
263
8
389
Best forecast wave conditions in South Oregon
Rating
(10 max)
4
3
3
3
3
4
4
Best forecast wave conditions in United States
Rating
(10 max)
3
4
3
3
5
3
2
3
2
4
4
2
3
4
3
2
3
3
4
4
2
Header Global
Rating
(10 max)
4
4
4
5
5
4
4
4
4
5
5
7
4
8
7
5
5
4
5
4
5
  • 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 Avalanche Surf forecast

The above surf forecast table for Avalanche provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Avalanche can be found by selecting the local surf guide option on the grey menu. Our Avalanche 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 (Avalanche) 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 Avalanche 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.

Avalanche is 66 km (41 miles) from Corvallis. If you plan a vacation in South Oregon, look for hotels and other accommodation in Corvallis. Corvallis has rooms for a wide range of budgets as well as car hire and transport links.

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