The Dump surfForecast / Washington / USA

information circle12 Day Weather and Surf, issued 9 am Saturday 29 Nov 2025 PST
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
10.9° C
(Which is 1.1°C warmer than normal for this time of year)


Best Forecast Surf Conditions for The Dump this week:

The surf forecast for The Dump over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Nov 30) at 4AM. The primary swell is predicted to be 1.5m and 13s period with a secondary swell of 0.6m and 12s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at The Dump in the next 12 days are 4.0m 12s and forecast to arrive on Friday (Dec 05) at 4PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 5s period and expected on Thursday (Dec 04) at 10PM.

Wave TypeTime (PST) & Date Wave Height & Period
Next good surf (1 star+) 4AM (Sun 30th Nov)5ft (1.5m) 13s
Best Surf 1AM (Tue 2nd Dec)6ft (1.9m) 16s
Most Powerful 4PM (Fri 5th Dec)13ft (4.0m) 12s

Table - best surf conditions forecast for The Dump over the next 12 days.

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Some drizzle, heaviest during Mon night. Mild temperatures (max 9°C on Mon night, min 6°C on Sat night). Wind will be generally light.

Days 3-6 Weather Summary Heavy rain (total 35mm), heaviest during Thu night. Very mild (max 11°C on Thu night, min 6°C on Tue night). Winds increasing (light winds from the SSE on Wed afternoon, fresh winds from the W by Thu night).

Saturday
29
Sunday
30
Monday
01
Tuesday
02
Wednesday
03
Thursday
04
Friday
05
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
1
1
2
2
2
3
3
4
2
4
3
3
2
2
1
2
0
0
0
1
Swell
Height Map
Wave Height (m) & direction (?)
0.8
W
0.8
WSW
1.5
WSW
1.3
WSW
1.3
WSW
1.1
WSW
1
W
1.4
WSW
1.9
WSW
2
W
2.2
W
2.1
W
1.8
W
1.5
W
1.2
W
1.2
W
1.3
W
1.1
W
3
W
4
W
3.5
W
Period(s) (?)131613121211201816151514131312121312101212
Wave
Graph
(?)Metric surfscale
Energy kJ (?)212347768508414291791130219161780204018091127760416423546327207240883274
Wind
(km/h)
15
ESE
20
E
15
E
15
E
5
E
10
E
5
ESE
5
SSE
5
ESE
15
E
15
ESE
10
ESE
10
SE
10
SE
10
SE
20
ESE
20
ESE
30
W
45
WSW
40
W
20
WSW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
glassglasscross-
off
cross-
off
offoffoffoffcross-
off
offcross-
on
cross-
on
cross-
on
cross-
on
High Tide
/ height (m)
7:39PM
1.77
8:21AM
2.51
9:06PM
1.80
8:58AM
2.72
10:19PM
1.90
9:37AM
2.91
11:22PM
2.01
10:19AM
3.08
12:19AM
2.09
11:04AM
3.19
1:12AM
2.15
11:50AM
3.22
2:04AM
2.17
Low Tide
/ height (m)
2:25PM
0.97
1:32AM
0.68
3:23PM
0.56
2:22AM
0.86
4:14PM
0.14
3:13AM
1.03
5:02PM
-0.24
4:04AM
1.16
5:49PM
-0.54
4:55AM
1.26
6:37PM
-0.72
5:45AM
1.33
7:25PM
-0.79
Saturday
29
Sunday
30
Monday
01
Tuesday
02
Wednesday
03
Thursday
04
Friday
05
Sunrise7:45--7:47--7:48--7:48--7:50--7:52--7:52--
Sunset-4:27--4:25--4:25--4:24--4:24--4:24--4:23-
cloud
part cloud
part cloud
part cloud
part cloud
part cloud
cloud
cloud
rain showers
clear
part cloud
cloud
cloud
cloud
light rain
light rain
mod rain
heavy rain
rain showers
light rain
mod rain
Rain (mm)
--------1-----45818238
Temp. °C876776779777887781110109
Feels °C (?)311443558334554246112
  • 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 12 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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