Surf Forecasts:
Slip Point (Clallam Bay) surf forecast from 25 Aug 2026:
- Most powerful swell: Monday 31 Aug, 11PM (local time) - 1.5ft (0.5m), 10s period, W swell with 48 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 0.5m 10s and forecast to arrive on Monday (Aug 31) 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 0.7m 9s period and expected on Tuesday (Sep 01) at 2PM.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 11PM (Mon 31st Aug) | 1.5ft (0.5m) 10s |
Table - best surf conditions forecast for Slip Point (Clallam Bay) over the next 16 days.
The Lowdown
Alright, I’m looking at the data for the next couple of weeks around Slip Point (Clallam Bay). Honestly, it’s a pretty quiet stretch, but there’s a little window of hope further out if you’ve got patience.
The first ten days or so are grim. There’s a long gap with no real surf on offer—from Tuesday the 25th pretty much right through to the end of August and into early September. The water is sitting at 53° and that’s a massive 6° colder than usual for this time of year, so way colder than normal. That’s a shock to the system. The first hint of something surfable doesn’t show up until Saturday morning, September 5th. That morning we see a 2ft swell out of the WNW with a 9-second period, and the combined energy is only 77. It’s small, weak energy, but it’s clean with a light ESE cross-off breeze. Sunday the 6th looks similar—2-2ft, WNW groundswell at 10 seconds, glassy conditions on Sunday afternoon. The energy is still low, around 94. These are tiny waves, but they’ll be clean.
The standout of the whole outlook is Monday, September 7th, and Tuesday, September 8th. Monday morning brings a 4ft W swell, 10-second period, and the combined energy jumps to 326—moderate energy for the first time. The wind is offshore from the ESE at 6 mph, so it’s clean. That’s the best wave size we’ve seen. Tuesday the 8th is even better: on Tuesday morning, it’s a 5ft W swell, 11-second period, with 524 combined energy (strong to very strong), and glassy conditions. Tuesday afternoon is still 4ft, 11 seconds, 338 energy, and glassy. That’s the pick of the whole 16 days—clean, solid groundswell. But remember, 5ft is getting into the territory where it’s better for experienced surfers, and since Slip Point is a point break, that longer 11-second period will wrap around nicely for a lined-up wave.
After that, Wednesday the 9th fades back to tiny, unexciting surf.
So if you can wait, the 7th and 8th of September are the ones to aim for. The rest of the time, you’re not missing much.
Rusty
Short Range ForecastMostly dry. Warm (max 22°C on Tue afternoon, min 12°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Very mild (max 18°C on Fri afternoon, min 11°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | |||||||||||||||
AM | 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 7 | SW 4 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 | SW 14 | SW 16 | SW 16 | SW 13 | SW 14 | W 6 | W 6 | SW 16 | SW 16 | WNW 10 | WNW 10 |
Wave Graph  | |||||||||||||||||||||
 kJ | 38 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 20 | 20 | 0 | 0 | 10 | 31 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-on | on | on | cross-on | cross-on | cross-on | cross-on | glassy | glassy | on | cross | glassy | on | cross-on | glassy | on | cross-on | cross-on | cross-on | glassy |
High Tide | 1:42PM3.48m | 11:45PM3.97m | 2:02PM3.54m | 00:31AM3.98m | 2:23PM3.63m | 1:15AM3.97m | 2:45PM3.74m | 2:00AM3.93m | 3:07PM3.87m | 2:47AM3.85m | 3:30PM4.00m | 3:38AM3.73m | 3:53PM4.12m | 4:36AM3.60m | |||||||
Low Tide | 5:50PM3.08m | 7:22AM1.65m | 6:40PM2.91m | 7:51AM1.65m | 7:29PM2.75m | 8:19AM1.72m | 8:18PM2.58m | 8:46AM1.86m | 9:07PM2.42m | 9:11AM2.07m | 9:56PM2.28m | 9:34AM2.32m | 10:47PM2.17m | ||||||||
 | |  |  | | | | |  | | | | | | | | | |  | |  | |
 | 6:24 | — | — | 6:24 | — | — | 6:26 | — | — | 6:28 | — | — | 6:30 | — | — | 6:31 | — | — | 6:31 | — | — |
 | — | 8:12 | — | — | 8:09 | — | — | 8:07 | — | — | 8:06 | — | — | 8:05 | — | — | 8:02 | — | — | 8:00 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 4 | 3 | 2 |
Temp °C | 21 | 22 | 16 | 18 | 20 | 16 | 17 | 19 | 15 | 16 | 18 | 14 | 16 | 18 | 14 | 16 | 18 | 15 | 14 | 14 | 14 |
Feels °C | 20 | 21 | 15 | 17 | 17 | 15 | 16 | 17 | 14 | 16 | 16 | 12 | 16 | 17 | 13 | 15 | 16 | 14 | 14 | 14 | 14 |
Swell 1 Height (m) Direction Period (s) | W 7 | W 7 | W 7 | WSW 7 | WSW 7 | WSW 7 | SW 7 | SW 6 | SW 6 | W 7 | W 6 | W 6 | W 6 | W 6 | W 6 | W 6 | W 6 | SW 16 | SW 16 | SW 14 | WNW 10 |
| kJ | 38 | 35 | 27 | 17 | 16 | 18 | 21 | 20 | 9 | 9 | 13 | 10 | 23 | 17 | 17 | 20 | 20 | 90 | 85 | 74 | 31 |
Swell 2 Height (m) Direction Period (s) | WSW 17 | SW 16 | WSW 15 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 | SW 14 | SW 13 | SW 16 | W 10 | SW 14 | SW 15 | SW 16 | W 6 | W 10 | W 10 | SW 14 |
| kJ | 108 | 125 | 71 | 90 | 89 | 88 | 87 | 57 | 33 | 33 | 33 | 28 | 68 | 17 | 71 | 109 | 86 | 12 | 18 | 17 | 74 |
Swell 3 Height (m) Direction Period (s) | — | W 10 | SW 16 | WSW 13 | WSW 13 | WSW 12 | WSW 11 | WSW 12 | W 11 | SW 6 | W 10 | SW 16 | W 10 | SW 13 | W 9 | W 11 | W 11 | W 10 | W 4 | WNW 10 | WSW 5 |
| kJ | — | 2 | 94 | 58 | 34 | 29 | 24 | 26 | 21 | 9 | 19 | 41 | 18 | 28 | 15 | 21 | 21 | 17 | 2 | 10 | 4 |
Wind waves Height (m) Direction Period (s) | — | SW 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 134 | 31 | 31 | 1270 | 50 | 22 | 27 | 17 | 17 | 832 | 17 | 50 | 17 | 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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