Surf Forecasts:
Slip Point (Clallam Bay) surf forecast from 19 Aug 2026:
- Most powerful swell: Wednesday 19 Aug, 8PM (local time) - 2ft (0.6m), 7s period, W swell with 38 kJ wave energy.
Best Forecast Surf Conditions for Slip Point (Clallam Bay) this week:
The most powerful waves expected at Slip Point (Clallam Bay) in the next 16 days are 0.6m 7s and forecast to arrive on Wednesday (Aug 19) at 8PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 12s period and expected on Wednesday (Aug 19) at 11AM.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 8PM (Wed 19th Aug) | 2ft (0.6m) 7s |
Table - best surf conditions forecast for Slip Point (Clallam Bay) over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's have a look at what's on the table for the Strait. Gotta be straight with you, this is a pretty grim outlook for the next couple of weeks.
We start off with a real quiet stretch. The first spot of any potential action is on Tuesday the 18th, but it's a tease. Slip Point (Clallam Bay) is showing a tiny 2ft swell from the west, with a period of 13 seconds. That long period groundswell is nice, but it's small and weak, with a combined energy of only 172. The wind is on it, so it'll be messy. Water temps are sitting at 52°, which is much colder than normal for this time of year, a full 7° below average. Not a session you'd want to paddle out for.
From there, we hit a proper dead zone. From the 19th of August through the 29th, there's practically nothing. We get a few days of glassy conditions on the 21st and 28th, but with zero swell, it's just flat. The energy is a big fat zero. You're looking at over a week of flat water.
The first real glimmer of hope doesn't arrive until the very end of the month. On Monday the 31st, the morning shows a bit of life. Swell bumps up to 4ft from the west, with a period of 12 seconds. That's a proper groundswell, and the combined energy hits 383, which is solid. The wind is a light cross-onshore, so it's not perfect, but it's enough to be considered "marginal." This is the standout of the whole forecast, but with a quality score of 1 out of 10, it's still a very average day.
The morning of Tuesday the 1st of September has a similar vibe. Swell is 3ft from the west-northwest, period 11 seconds, and with a light cross-offshore wind from the northeast, the surface is looking clean. Energy is moderate at 153. It's surfable, but ordinary.
The pattern holds into Wednesday the 2nd of September with a morning of clean conditions and a 3ft west swell. The energy drops off to 78, which is weak. Honestly, the best of the entire run is that Monday morning with the 4ft west swell. For a point break like Slip Point, that west-northwest optimum direction is a match, and the 12-second period will give it some shape. Just don't expect anything world-class. We're in a long dry spell, and it's taking its time to break.
Rusty, signing off.
Short Range ForecastMostly dry. Warm (max 20°C on Tue afternoon, min 12°C on Tue night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Very mild (max 19°C on Fri afternoon, min 12°C on Fri night). Wind will be generally light. | |||||||||||||||||||
Tue 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | ||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | W 13 | W 12 | W 12 | W 12 | W 12 | W 11 | W 11 | W 11 | W 9 | W 10 | W 9 | W 9 | W 8 | W 8 | W 8 | W 8 | SW 19 | SW 18 | W 7 | WSW 18 |
Wave Graph  | ||||||||||||||||||||
 kJ | 125 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 27 | 0 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | glassy | on | glassy | cross-on | on | cross-on | glassy | on | cross-on | on | cross-on | cross-on | cross-on | on | cross | cross-on | on | cross-on |
High Tide | 5:39PM4.09m | 7:11AM3.20m | 6:13PM4.06m | 9:13AM3.16m | 6:56PM4.00m | 7:51PM3.95m | 1:08PM3.36m | 8:55PM3.91m | 1:05PM3.41m | 9:59PM3.91m | 1:22PM3.45m | 10:55PM3.93m | ||||||||
Low Tide | 1:07AM2.25m | 11:04AM2.95m | 2:13AM2.22m | 11:13AM3.13m | 3:23AM2.16m | 4:30AM2.06m | 1:47PM3.36m | 5:26AM1.94m | 3:47PM3.33m | 6:11AM1.81m | 4:56PM3.22m | |||||||||
 |  |  | | | | | | | |  |  | | | | | | | | | |
 | — | — | 6:16 | — | — | 6:16 | — | — | 6:18 | — | — | 6:20 | — | — | 6:20 | — | — | 6:22 | — | — |
 | 8:25 | — | — | 8:23 | — | — | 8:22 | — | — | 8:20 | — | — | 8:17 | — | — | 8:15 | — | — | 8:14 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 20 | 16 | 17 | 18 | 15 | 18 | 19 | 15 | 19 | 19 | 17 | 16 | 19 | 16 | 18 | 19 | 15 | 19 | 20 | 17 |
Feels °C | 18 | 15 | 17 | 17 | 15 | 18 | 18 | 14 | 20 | 19 | 16 | 16 | 18 | 15 | 18 | 17 | 15 | 19 | 18 | 16 |
Swell 1 Height (m) Direction Period (s) | W 7 | W 12 | W 12 | W 12 | W 12 | W 11 | W 11 | W 11 | W 9 | W 10 | W 9 | W 9 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 7 | W 7 |
| kJ | 47 | 190 | 339 | 333 | 266 | 279 | 231 | 184 | 113 | 117 | 103 | 119 | 105 | 82 | 49 | 45 | 28 | 18 | 27 | 42 |
Swell 2 Height (m) Direction Period (s) | W 13 | W 6 | SW 13 | SW 14 | SW 13 | SW 16 | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 13 | SSW 13 | SW 19 | SW 18 | SW 18 | WSW 18 |
| kJ | 125 | 20 | 46 | 29 | 27 | 62 | 82 | 53 | 52 | 51 | 50 | 27 | 27 | 27 | 27 | 17 | 55 | 48 | 79 | 121 |
Swell 3 Height (m) Direction Period (s) | SW 14 | SW 14 | SW 18 | SW 17 | SW 16 | — | W 15 | — | W 13 | W 13 | SW 18 | SW 17 | SW 18 | SW 18 | WSW 16 | WSW 16 | SW 12 | SW 12 | SW 12 | W 10 |
| kJ | 73 | 66 | 13 | 44 | 40 | — | 4 | — | 3 | 3 | 13 | 12 | 12 | 13 | 26 | 26 | 6 | 6 | 6 | 2 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 17 | 14 | 1 | 37 | 1 | 14 | 244 | 17 | 17 | 151 | 17 | 17 | 17 | 17 | 22 | 722 | 22 | 22 | 661 | 17 |
Best forecast wave conditions in Washington State | ||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||
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Information about the Slip Point (Clallam Bay) Surf forecast
The above surf forecast table for Slip Point (Clallam Bay) provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Slip Point (Clallam Bay) can be found by selecting the local surf guide option on the grey menu. Our Slip Point (Clallam Bay) 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 (Slip Point (Clallam Bay)) 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 Slip Point (Clallam Bay) 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.
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