The Dump surfForecast / Washington / USA

information circle16 Day Weather and Surf, issued 10 am Thursday 21 May 2026 PDT
Forecast update in hr  min  s Forecast update imminent
The Dump surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's The Dump sea temperature is
10.1° C
(Which is 1.9°C colder than average for this time of year)

Best Forecast Surf Conditions for The Dump this week:

The surf forecast for The Dump over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (May 22) at 2AM. The primary swell is predicted to be 1.6m and 8s period with a secondary swell of 0.4m and 11s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at The Dump in the next 16 days are 2.5m 16s and forecast to arrive on Thursday (May 28) at 8AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 5s period and expected on Monday (May 25) at 5AM.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Fri 22nd May)5ft (1.6m) 8s
Best Surf 8PM (Mon 25th May)7ft (2.1m) 10s
Most Powerful 8AM (Thu 28th May)8ft (2.5m) 16s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Mostly dry. Very mild (max 13°C on Thu morning, min 10°C on Sat night). Winds increasing (calm on Thu night, fresh winds from the WNW by Sat afternoon).

Days 4-6 Weather Summary

Heavy rain (total 40mm), heaviest during Sun night. Very mild (max 12°C on Tue morning, min 9°C on Tue night). Winds decreasing (fresh winds from the SE on Mon morning, calm by Mon night).

Thursday
21
Friday
22
Saturday
23
Sunday
24
Monday
25
Tuesday
26
Wednesday
27
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
0
2
1
0
1
0
0
0
1
1
1
2
2
3
1
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.2
W
10
1.1
W
10
1.6
W
8
1.4
W
8
0.6
SW
15
1.5
W
9
1.4
W
9
1.9
WNW
7
0.8
W
15
1.1
W
14
1.3
W
13
1.1
W
13
1.8
W
9
2.1
WSW
10
1.9
WSW
10
2.5
W
12
2.5
W
11
1.9
W
11
1.4
W
10
0.8
W
20
1.8
W
17
Wave Graph
Metric surfscale
Energy kJ
279
235
300
239
141
332
297
405
287
494
591
386
541
833
698
1673
1493
813
426
477
1836
Wind (km/h)
5
SSE
15
WNW
0
WSW
15
S
15
SW
10
SW
10
W
35
WNW
20
W
10
WSW
10
WSW
25
SE
25
SE
10
SE
5
WNW
10
WSW
30
WNW
15
W
25
WNW
30
W
20
WNW
glassy
cross-on
glassy
cross-off
cross
cross
cross-on
cross-on
cross-on
cross-on
cross
off
off
off
glassy
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
High Tide
6:35PM1.89m
5:07AM2.22m
7:33PM1.94m
6:23AM1.94m
8:26PM2.03m
7:52AM1.71m
9:12PM2.14m
9:20AM1.59m
9:53PM2.23m
10:37AM1.56m
10:29PM2.31m
11:42AM1.59m
11:02PM2.37m
Low Tide
11:39AM-0.50m
11:32PM1.19m
12:34PM-0.26m
1:06AM1.11m
1:28PM0.00m
2:37AM0.91m
2:22PM0.26m
3:51AM0.63m
3:13PM0.50m
4:49AM0.34m
4:02PM0.71m
5:36AM0.08m
4:46PM0.88m
part cloud
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
cloud
cloud
heavy rain
heavy rain
light rain
part cloud
part cloud
part cloud
light rain
rain showers
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:31
5:30
5:28
5:28
5:26
5:26
5:24
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:59
9:00
9:00
9:02
9:04
9:05
9:06
17
17
5
1
3
Temp °C
13
13
12
12
12
11
12
11
10
10
11
11
10
11
11
12
11
10
10
11
10
12
11
9
10
9
9
10
5
4
7
8
9
3
9
10
10
7
4
5
5
3
Swell 1
Height (m)
Direction
Period (s)
1.2
W
10
1.1
W
10
1.6
W
8
1.4
W
8
1
W
7
1.5
W
9
1.4
W
9
0.5
SW
15
0.8
W
15
1.1
W
14
1.3
W
13
1.1
W
13
1.8
W
9
2.1
WSW
10
1.9
WSW
10
2.5
W
12
2.3
W
11
1.9
W
11
1.4
W
10
0.8
W
20
1.8
W
17
Energy kJ
279
235
300
239
100
332
297
104
287
494
591
386
541
833
698
1673
1278
813
426
477
1836
Swell 2
Height (m)
Direction
Period (s)
0.5
SW
16
0.5
SW
15
0.4
WNW
11
0.5
SW
15
0.8
W
10
0.6
SW
18
0.6
SW
17
0.3
W
18
0.6
SW
16
0.9
W
7
0.5
SW
16
0.5
SW
16
1.2
SSW
7
0.8
S
7
1.2
W
13
0.6
SSW
16
0.6
SSW
16
0.6
SSW
16
0.6
SSW
15
0.6
SSW
15
0.6
SSW
14
Energy kJ
121
109
41
109
125
192
186
55
151
74
119
124
139
56
468
173
173
164
150
148
140
Swell 3
Height (m)
Direction
Period (s)
0.3
SW
19
0.4
SW
15
0.6
SW
15
0.1
W
20
0.5
W
9
0.5
SW
16
0.1
SW
21
0.1
SW
20
0.5
SW
16
0.4
SSW
15
0.5
SW
15
0.3
W
22
0.3
SW
14
Energy kJ
59
76
141
7
42
121
18
15
121
85
104
83
33
Wind waves
Height (m)
Direction
Period (s)
1.9
WNW
7
1.2
W
6
0.7
S
4
2.5
W
11
1.5
W
10
1.7
W
9
Energy kJ
405
119
14
1493
432
490
Nearest Offshore or Glassy
Rating
(10 max)
2
3
2
1
1
1
1
1
1
2
2
1
2
2
3
3
1
2
1
1
3
Distance (km)
0
931
0
0
4
4
16
737
47
4
4
16
0
0
0
4
803
47
53
1289
47
Best forecast wave conditions in Washington State
Rating
(10 max)
2
2
2
1
3
1
1
2
3
2
2
3
4
3
3
1
3
Best forecast wave conditions in United States
Rating
(10 max)
4
3
4
2
3
4
3
2
3
3
3
4
2
3
4
9
2
5
3
3
4
Header Global
Rating
(10 max)
5
7
6
5
6
8
5
5
6
5
5
4
4
5
5
5
5
5
9
8
9
  • 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 The Dump Surf forecast

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

The Dump is 83 km (52 miles) from Duncan. If you plan a vacation in Washington State, look for hotels and other accommodation in Duncan. Duncan has rooms for a wide range of budgets as well as car hire and transport links.

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