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Surf Forecasts:

The Dump surfForecast / Washington / USA

information circle12 Day Weather and Surf, issued 4 am Thursday 18 Sep 2025 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
11.2° C
 (Which is 2.9°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 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Sep 18) at 8AM. The primary swell is predicted to be 1.6m and 11s period with a secondary swell of 0.6m and 9s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at The Dump in the next 12 days are 2.2m 11s and forecast to arrive on Sunday (Sep 21) at 11PM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 5s period and expected on Saturday (Sep 20) at 8PM.

Wave TypeTime (PDT) & Date Wave Height & Period
Next good surf (1 star+) 8AM (Thu 18th Sep)5ft (1.6m) 11s
Best Surf 8PM (Sun 21st Sep)7ft (2.2m) 11s
Most Powerful11PM (Sun 21st Sep)7ft (2.2m) 11s

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

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table

Short Range Forecast Heavy rain (total 36mm), heaviest during Sat night. Very mild (max 16°C on Sat afternoon, min 12°C on Thu morning). Wind will be generally light.

Days 3-6 Weather Summary Mostly dry. Very mild (max 14°C on Sun morning, min 12°C on Sun night). Wind will be generally light.

Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
1
0
1
1
0
1
2
1
0
2
1
3
2
2
3
0
0
2
2
1
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
1.3
W
1.3
W
1.1
W
1.1
W
1.1
W
1.1
W
1.4
W
1.3
W
2.1
W
2.1
W
2.2
W
2.1
W
1.8
W
1.6
W
2.2
W
1.8
W
1.7
W
1.8
W
1.9
W
2.1
W
1.6
W
Period(s) (?)11108999121211111112121111111111111111
Wave
Graph
(?)Metric surfscale
Energy kJ (?)37533216918918018452944999910301172114485763211287436497439301127628
Wind
(km/h)
5
W
15
WNW
5
SE
5
S
10
WNW
5
SW
10
S
15
SSE
20
WNW
10
WSW
10
W
5
ESE
5
ESE
5
WNW
0
NNE
10
WNW
20
NW
0
S
10
WSW
15
W
15
W
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on		onglassglasscross-
on		glasscross-
off		cross-
off		cross-
on		crosscross-
on		glassglassglassglassononglasscross-
on		cross-
on		cross-
on
High Tide
/ height (m)
12:04PM
1.94
11:17PM
2.29
12:35PM
2.07
12:08AM
2.30
1:02PM
2.19
12:54AM
2.28
1:28PM
2.27
1:36AM
2.22
1:52PM
2.33
2:17AM
2.14
2:14PM
2.36
2:57AM
2.04
2:36PM
2.35
3:38AM
1.92
Low Tide
/ height (m)
5:38PM
0.98
6:10AM
-0.10
6:25PM
0.75
6:46AM
-0.01
7:06PM
0.53
7:18AM
0.13
7:44PM
0.35
7:46AM
0.30
8:19PM
0.21
8:11AM
0.48
8:53PM
0.12
8:35AM
0.67
9:28PM
0.08
Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Sunrise6:58--7:00--7:01--7:03--7:03--7:05--7:07--
Sunset-7:24--7:22--7:21--7:19--7:16--7:15--7:12-
clear
clear
clear
clear
part cloud
clear
part cloud
light rain
rain showers
clear
clear
clear
clear
clear
part cloud
cloud
part cloud
part cloud
part cloud
clear
part cloud
Rain (mm)
-------333------------
Temp. °C131412141413151615141414141414141413131313
Feels °C (?)121210131311141511131214131413121111111011
  • 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

Eyeball surf reportRecent Eyeball Surf Reports for Washington

  1. weather stationWind Update Continuing clean conditions at The Dump (calm at Forks 47 km from The Dump). 1.6m 11s groundswell from the W with a 1.2m 7s swell, also from the W and a 0.7m 9s swell, also from the SW. 3 swells combining to make bigger set waves.

    2 hours 13 minutes ago The Dump
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47 km away, 2 h 13 min ago

0 km/h
S
0.0
11.2
Air / Water (°C)
Please reload the page to see if there are any updates.

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our The Dump surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.

View detailed surf forecast for The Dump at:
surf-forecast.com

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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