Surf Forecasts:
Slip Point (Clallam Bay) surf forecast from 20 Aug 2026:
- Most powerful swell: Sunday 23 Aug, 5AM (local time) - 2.5ft (0.7m), 8s period, W swell with 64 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 0.7m 8s and forecast to arrive on Sunday (Aug 23) at 5AM. 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 8PM.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 5AM (Sun 23rd Aug) | 2.5ft (0.7m) 8s |
Table - best surf conditions forecast for Slip Point (Clallam Bay) over the next 16 days.
The Lowdown
Alright, I’ll level with ya, mate. The 16-day window for Slip Point (Clallam Bay) is pretty much a bust. We’ve got a massive stretch of flat days, poor surf conditions, and barely a ripple to get excited about. The water temp is sitting at 53°F on the 19th, which is 6°F colder than usual for this time of year – that’s a real kick in the guts, feels more like winter than late summer.
From Wednesday the 19th right through to the end of the month, it’s a whole lot of nothing. The combined wave energy is zero for most of these sessions. There’s a brief flicker on the 27th afternoon with a tiny 2ft swell from the west at 6 seconds, but only 22 units of energy and still considered poor – not worth paddling out for. The 28th and 29th show a bit more, with 2ft west swell at 6 seconds and energy up to 40, but the wind is cross-onshore and choppy, so it’s messy. On the 30th afternoon, we get a glassy moment with 2ft west swell, 7 seconds, and 45 units of energy – still poor surf conditions, but if you’re desperate, that’s the cleanest window in the whole forecast. The 1st of September morning has a tiny 1ft WNW swell at 7 seconds, only 10 units of energy, and glassy conditions – but it’s barely surfable.
Honestly, there’s no standout here. The only day that might be worth a look is the 30th afternoon, with that glassy wind and the highest energy we see (45), but the swell is tiny and short period. For a point break like Slip Point, we need a decent groundswell from the WNW to really light up, and there’s nothing close. The advanced-level difficulty means it’s not a beginner spot anyway, but with no real swell, it’s a total write-off. If you’re keen on kitesurfing, the stronger onshore winds later in the window might be more interesting, but for surfing? Save your energy.
Rusty.
Short Range ForecastMostly dry. Warm (max 21°C on Thu afternoon, min 13°C on Wed night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 6mm), mostly falling on Sat night. Very mild (max 19°C on Mon afternoon, min 12°C on Sun night). Wind will be generally light. | |||||||||||||||||||
Wed 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | ||||||||||||||
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 12 | W 12 | W 11 | W 11 | W 9 | W 9 | W 10 | W 9 | W 9 | W 8 | W 8 | W 8 | W 7 | SW 19 | SW 18 | SW 18 | W 6 | WSW 16 | W 7 | WSW 15 |
Wave Graph | ||||||||||||||||||||
0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 58 | 0 | 0 | 0 | 0 | 38 | 0 | 43 | 0 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | glassy | cross-off | glassy | glassy | glassy | on | cross-on | cross-on | on | cross-on | glassy | glassy | glassy | cross-off | on | cross-on | cross-on | cross-on | cross |
High Tide | 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 | 1:42PM3.48m | 11:45PM3.97m | ||||||||
Low Tide | 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 | 6:49AM1.71m | 5:50PM3.08m | |||||||||
— | — | 6:16 | — | — | 6:18 | — | — | 6:20 | — | — | 6:20 | — | — | 6:22 | — | — | 6:24 | — | — | |
8:23 | — | — | 8:22 | — | — | 8:20 | — | — | 8:17 | — | — | 8:15 | — | — | 8:14 | — | — | 8:12 | — | |
mm | — | — | — | — | — | — | — | — | — | 2 | 4 | — | — | — | — | — | — | — | — | — |
Temp °C | 18 | 14 | 19 | 21 | 17 | 20 | 20 | 17 | 18 | 17 | 16 | 15 | 17 | 14 | 17 | 19 | 16 | 16 | 18 | 14 |
Feels °C | 17 | 13 | 18 | 21 | 17 | 20 | 20 | 16 | 17 | 16 | 14 | 15 | 17 | 14 | 16 | 18 | 15 | 15 | 16 | 11 |
Swell 1 Height (m) Direction Period (s) | W 12 | W 12 | W 11 | W 11 | W 9 | W 9 | W 10 | W 9 | W 9 | W 8 | W 8 | W 8 | W 7 | W 7 | W 7 | W 7 | W 6 | W 7 | W 7 | W 6 |
333 | 266 | 274 | 227 | 164 | 136 | 117 | 106 | 94 | 90 | 86 | 58 | 50 | 38 | 26 | 23 | 38 | 57 | 43 | 51 | |
Swell 2 Height (m) Direction Period (s) | 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 | SW 18 | WSW 16 | SW 16 | WSW 15 |
29 | 27 | 62 | 59 | 53 | 52 | 51 | 50 | 27 | 27 | 27 | 27 | 17 | 55 | 48 | 80 | 152 | 103 | 122 | 121 | |
Swell 3 Height (m) Direction Period (s) | 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 | W 10 | W 10 | SW 16 |
44 | 40 | — | 4 | — | 3 | 3 | 13 | 12 | 12 | 13 | 26 | 26 | 6 | 6 | 6 | 2 | 2 | 2 | 68 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 37 | 1 | 1 | 1 | 1 | 1 | 151 | 17 | 17 | 17 | 17 | 17 | 22 | 22 | 22 | 722 | 17 | 29 | 722 | 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.











