Surf Forecasts:
Caspar Creek surf forecast from 17 Aug 2026:
- Best quality surf: Tuesday 18 Aug, 8PM (local time) - 6ft (1.8m), 7s period, NW swell with glassy winds.
- Most powerful swell: Saturday 22 Aug, 11PM (local time) - 7ft (2.1m), 8s period, NW swell with 551 kJ wave energy.
- Next surfable swell (1★+): Monday 17 Aug, 11PM (local time) - 5ft (1.5m), 7s period with NW swell.
Best Forecast Surf Conditions for Caspar Creek this week:
The surf forecast for Caspar Creek over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Aug 17) at 11PM. The primary swell is predicted to be 1.5m and 7s period. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Caspar Creek in the next 16 days are 2.1m 8s and forecast to arrive on Saturday (Aug 22) at 11PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 15s period and expected on Monday (Aug 17) at 2PM.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Mon 17th Aug) | 5ft (1.5m) 7s |
| Best Surf | 8PM (Tue 18th Aug) | 6ft (1.8m) 7s |
| Most Powerful | 11PM (Sat 22nd Aug) | 7ft (2.1m) 8s |
Table - best surf conditions forecast for Caspar Creek over the next 16 days.
The Lowdown
Alright, surfers, Rusty here. Let's cut through the noise and give it to you straight for the next couple of weeks. We’ve got a bit of a slow grind ahead, but there’s a little light at the end of the tunnel if you’re willing to wait.
The overall picture is pretty average for the next stretch. We’ve got a persistent run of cross-onshore winds that are going to keep things a bit lumpy and messy for most of the period. The swell energy is there at times, but the quality is just not going to be there to make it worth your while. We’re looking at a lot of days where it’s just onshore slop.
Right off the bat, Monday the 17th and Tuesday the 18th are write-offs. Swell is small at 4ft to 5ft from the NW but with that cross-onshore wind, it’s going to be a mess. The energy is weak to moderate (138 to 328). Just leave the board in the car.
The middle of the week, Wednesday the 19th and Thursday the 20th, sees a pulse of more energy, with the combined swell energy jumping up (533-651). The swell does push up to 7ft on Wednesday, but the wind is still cross-onshore, making it blown-out and choppy. That’s just frustration in the water. For Thursday, the energy remains moderate (420-500), but the 12-second period on the morning of the 20th is a tease as the wind is howling 12 mph cross-onshore. Not good.
The weekend from Friday the 22nd through Sunday the 24th remains in the same pattern. Size stays in the 5ft to 7ft range, but that persistent cross-onshore wind ruins the party. The swell is all short-period NW windswell, and it just won't have any push or shape to it.
Now, here’s where things get interesting. Around Sunday the 23rd and Monday the 24th, the wind finally starts to ease a little, and we see the swell period stretch out a bit with a NW swell of 6ft and 9-second period. The energy is still strong (614-655), but it's still only showing as marginal, so not a huge shout.
We then hit a bit of a lull around Tuesday the 25th. Swell drops right off to 2ft. It's a long-period SW groundswell (16 seconds), but it's tiny. There’s almost nothing to ride. We then see a return of the short-period NW windswell from Wednesday the 26th through the following week, but the wind is still a problem, mostly cross-on.
But then, late in the period, there’s a glimmer of hope. On the morning of Sunday the 31st of August, the wind finally turns light offshore and glassy. We have a clean 2ft SW swell with a 14 to 15-second period. The conditions finally look good, clean and glassy. The energy is moderate (369-526), and for the first time in the whole run, we’re seeing a real opportunity. It’s small, but it’s clean, and at a sheltered spot like Caspar Creek (Mendocino), a clean 2ft with a long period could be a lot of fun on a longboard. This is the standout of the whole window. The vibe is right.
So, if you can wait, the morning of Sunday the 31st is the one to circle on the calendar. It’s not going to be big, but it will be clean. For the rest of it, it’s a lot of average and choppy conditions. The winds are your biggest enemy here.
Rusty out.
Short Range ForecastMostly dry. Very mild (max 15°C on Mon afternoon, min 11°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Very mild (max 15°C on Sat afternoon, min 11°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | |||||||||||||||
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) | NW 7 | NW 7 | NW 7 | NW 7 | NW 7 | NW 7 | NW 8 | NW 8 | NW 7 | WNW 12 | NW 7 | NW 7 | NW 7 | NW 7 | NW 7 | NW 7 | NW 8 | NW 8 | NW 9 | NW 8 | NW 8 |
Wave Graph | |||||||||||||||||||||
99 | 109 | 218 | 246 | 336 | 327 | 395 | 435 | 309 | 237 | 269 | 218 | 206 | 316 | 200 | 206 | 403 | 515 | 427 | 375 | 403 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross-on | cross-on | cross-on | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross-on | cross-on | cross-on | on | on | glassy |
High Tide | 3:15PM1.76m | 4:04AM1.28m | 3:55PM1.73m | 5:28AM1.15m | 4:40PM1.69m | 7:12AM1.12m | 5:35PM1.66m | 8:47AM1.16m | 6:36PM1.66m | 9:47AM1.22m | 7:38PM1.69m | 10:24AM1.27m | 8:32PM1.75m | ||||||||
Low Tide | 8:45AM0.46m | 9:56PM0.35m | 9:21AM0.67m | 11:02PM0.33m | 10:01AM0.85m | 00:14AM0.30m | 10:54AM0.98m | 1:24AM0.25m | 12:08PM1.06m | 2:26AM0.18m | 1:26PM1.07m | 3:16AM0.11m | 2:29PM1.03m | 3:57AM0.05m | |||||||
6:28 | — | — | 6:30 | — | — | 6:31 | — | — | 6:31 | — | — | 6:33 | — | — | 6:33 | — | — | 6:35 | — | — | |
— | 8:07 | — | — | 8:07 | — | — | 8:05 | — | — | 8:04 | — | — | 8:01 | — | — | 8:00 | — | — | 8:00 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 15 | 12 | 13 | 14 | 12 | 14 | 14 | 13 | 13 | 13 | 12 | 14 | 14 | 12 | 14 | 15 | 13 | 14 | 14 | 12 |
Feels °C | 13 | 13 | 11 | 11 | 13 | 12 | 11 | 11 | 12 | 11 | 11 | 11 | 12 | 11 | 10 | 12 | 13 | 12 | 13 | 13 | 12 |
Swell 1 Height (m) Direction Period (s) | NW 7 | NW 7 | NW 7 | SSW 15 | SSW 16 | SSW 16 | SSW 14 | SSW 15 | WNW 12 | WNW 12 | WNW 11 | WNW 11 | WNW 11 | SSW 13 | WNW 10 | SSW 13 | SSW 13 | NW 8 | NW 9 | NW 8 | NW 8 |
99 | 109 | 218 | 242 | 353 | 291 | 301 | 305 | 242 | 237 | 210 | 164 | 117 | 101 | 80 | 99 | 67 | 403 | 427 | 375 | 403 | |
Swell 2 Height (m) Direction Period (s) | SSW 15 | SSW 15 | SSW 15 | SSW 18 | WNW 15 | WNW 13 | WNW 12 | WNW 12 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | W 11 | SSW 13 | WNW 10 | SW 18 | SW 16 | SW 19 | SW 18 | S 16 |
334 | 334 | 272 | 62 | 84 | 102 | 172 | 210 | 318 | 223 | 226 | 236 | 156 | 57 | 99 | 35 | 49 | 95 | 130 | 117 | 122 | |
Swell 3 Height (m) Direction Period (s) | W 9 | WNW 9 | SSW 18 | WNW 16 | S 10 | SSW 13 | SW 20 | SW 21 | W 21 | SW 19 | SW 19 | WNW 14 | SW 18 | SW 18 | SW 18 | SSW 16 | WNW 12 | SSW 12 | S 15 | SSW 16 | SW 18 |
39 | 43 | 62 | 25 | 2 | 65 | 16 | 18 | 9 | 55 | 58 | 20 | 51 | 111 | 48 | 53 | 29 | 30 | 41 | 83 | 155 | |
Wind waves Height (m) Direction Period (s) | — | — | — | NW 7 | NW 7 | NW 7 | NW 8 | NW 8 | NW 7 | NW 7 | NW 7 | NW 7 | NW 7 | NW 7 | NW 7 | NW 7 | NW 8 | NW 8 | — | — | — |
— | — | — | 246 | 336 | 327 | 395 | 435 | 309 | 176 | 269 | 218 | 206 | 316 | 200 | 206 | 403 | 515 | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 52 | 75 | 7 | 167 | 16 | 7 | 167 | 310 | 7 | 136 | 75 | 6 | 136 | 75 | 6 | 190 | 23 | 7 | 167 | 52 | 0 |
Best forecast wave conditions in Mendocino County | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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Information about the Caspar Creek Surf forecast
The above surf forecast table for Caspar Creek provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Caspar Creek can be found by selecting the local surf guide option on the grey menu. Our Caspar Creek 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 (Caspar Creek) 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 Caspar Creek 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.
Caspar Creek is 58 km (36 miles) from Ukiah. If you plan a vacation in Mendocino County, look for hotels and other accommodation in Ukiah. Ukiah has rooms for a wide range of budgets as well as car hire and transport links.











