The Dump surfForecast / Washington / USA

information circle16 Day Weather and Surf, issued 10 pm Tuesday 31 Mar 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
8.7° C
(Which is slightly cooler than normal)

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 Wednesday (Apr 01) at 5AM. The primary swell is predicted to be 0.8m and 12s period with a secondary swell of 0.3m and 12s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at The Dump in the next 16 days are 2.5m 12s and forecast to arrive on Thursday (Apr 02) at 11AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Wednesday (Apr 01) at 5AM.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+) 5AM (Wed 1st Apr)2.5ft (0.8m) 12s
Best Surf11PM (Thu 2nd Apr)6.5ft (2.0m) 11s
Most Powerful11AM (Thu 2nd Apr)8ft (2.5m) 12s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast Heavy rain (total 33mm), heaviest during Wed afternoon. Mild temperatures (max 9°C on Thu afternoon, min 5°C on Wed night). Winds decreasing (fresh winds from the E on Wed morning, light winds from the NW by Thu morning).

Days 3-6 Weather Summary Mostly dry. Very mild (max 14°C on Sun afternoon, min 8°C on Fri night). Wind will be generally light.

Wednesday
01
Thursday
02
Friday
03
Saturday
04
Sunday
05
Monday
06
Tue
07
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
0
0
1
1
2
0
2
1
1
1
1
0
1
1
1
1
1
0
1
0
0
Swell
Height Map
Wave Height (m) & direction (?)
0.5
W
0.9
W
1.4
W
1.5
W
2.5
WSW
2.3
W
1.8
W
1.3
WSW
1.1
WSW
1.3
W
1.2
W
1.2
W
1.1
W
1.3
W
1.2
W
1.1
W
1
W
1
W
1.3
W
1.4
W
1.4
W
Period(s) (?)12111010121110109999101211111010788
Wave
Graph
(?)Metric surfscale
Energy kJ (?)7719538444316971365720328211247220224219441344269190186166245270
Wind
(km/h)
20
SSE
30
E
10
NE
10
WNW
5
WSW
15
WSW
10
S
10
SE
5
SSW
5
ENE
10
E
10
NNW
10
ENE
15
E
15
ENE
15
E
10
ESE
10
SW
10
SSW
20
W
35
WNW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
cross-
off
crossoncrosscross-
on
cross-
off
offcross-
off
glasscross-
off
cross-
on
cross-
off
cross-
off
cross-
off
cross-
off
offcrosscross-
off
cross-
on
cross-
on
High Tide
/ height (m)
1:05AM
2.40
1:25PM
2.21
1:31AM
2.47
2:08PM
2.15
1:56AM
2.50
2:50PM
2.06
2:21AM
2.49
3:32PM
1.95
2:46AM
2.44
4:14PM
1.83
3:12AM
2.37
5:02PM
1.69
3:42AM
2.28
6:01PM
1.56
Low Tide
/ height (m)
7:31AM
0.24
7:27PM
0.39
8:08AM
0.08
7:55PM
0.56
8:44AM
-0.02
8:20PM
0.73
9:20AM
-0.06
8:44PM
0.89
9:56AM
-0.04
9:08PM
1.03
10:37AM
0.04
9:33PM
1.15
11:23AM
0.14
Wednesday
01
Thursday
02
Friday
03
Saturday
04
Sunday
05
Monday
06
Tue
07
Sunrise-6:56--6:54--6:52--6:50--6:48--6:47--6:45-
Sunset--7:47--7:50--7:51--7:52--7:53--7:55--7:57
light rain
mod rain
heavy rain
mod rain
part cloud
part cloud
part cloud
part cloud
cloud
part cloud
clear
clear
part cloud
cloud
cloud
cloud
cloud
cloud
part cloud
part cloud
clear
Rain (mm)
29166-----------------
Temp. °C866679889910111011141313121087
Feels °C (?)3-1225555687877109109841
  • 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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