Surf Forecasts:
4 Mile surf forecast from 18 Aug 2026:
- Best quality surf: Tuesday 18 Aug, 11PM (local time) - 2.5ft (0.8m), 16s period, SSW swell with cross-offshore winds.
- Most powerful swell: Tuesday 18 Aug, 5PM (local time) - 3ft (0.9m), 16s period, SSW swell with 366 kJ wave energy.
- Next surfable swell (1★+): Tuesday 18 Aug, 2AM (local time) - 2.5ft (0.8m), 14s period with SSW swell.
Best Forecast Surf Conditions for 4 Mile this week:
The surf forecast for 4 Mile over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Aug 18) at 2AM. The primary swell is predicted to be 0.8m and 14s period with a secondary swell of 0.5m and 6s. Another secondary swell of 0.9m and 7s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at 4 Mile in the next 16 days are 0.9m 16s and forecast to arrive on Tuesday (Aug 18) at 5PM. Winds are predicted to be cross-shore at the time the swell arrives.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Tue 18th Aug) | 2.5ft (0.8m) 14s |
| Best Surf | 11PM (Tue 18th Aug) | 2.5ft (0.8m) 16s |
| Most Powerful | 5PM (Tue 18th Aug) | 3ft (0.9m) 16s |
Table - best surf conditions forecast for 4 Mile over the next 16 days.
The Lowdown
Alright, let’s get real about the next couple of weeks. It is not looking like a classic run for 4 Mile. We’ve got a long stretch of onshore and cross-shore winds messing up what little swell is actually heading our way. The energy’s there in the water, but the quality is just not lining up for a proper session for quite a while.
The first real chance to even think about getting wet won’t be until Saturday, August 30th. That’s a long wait, over a week and a half of choppy, lumpy conditions where the swell is small and the wind is just tearing it apart. The good news is the water is running at 61°F, which is a touch warmer than usual for this time of year, so you won’t be freezing while you’re struggling to find a clean one.
The standout window, and the only one I’d truly circle on the calendar, is that Saturday morning on August 30th. We’ve got a 4ft SSW swell with a 16-second period, and the wind finally drops out to a light onshore from the SW. It’s not offshore, but it’s as close to clean as we’re going to get. The combined energy is reading 846, which is strong. The sets will be fat and lined up, but it’s still only a marginal call. Sunday the 31st also hangs in there with a similar SSW swell, but that wind is more light and variable. Still, these are the only two windows where the surf has any chance of actually holding shape. Everything before that is a write-off.
Further out, into the first few days of September, there’s a push of shorter-period WNW windswell, but that’s not going to be doing 4 Mile any favors. This is a spot that needs that long-period SSW groundswell, not choppy local wind waves. It will just be a mess.
If you’re desperate before then and the wind is howling from the NW with that cross-chop, honestly, it looks more interesting for a kite than a surfboard.
So, hold tight. The waiting game is the name of it. The potential is there for the very end of the month, but it’s a long-range call, so don’t book the day off work just yet. It’s promising, but we need a bit of luck.
There’s a long gap of nothing good before that, a good ten days of mush. But that’s the nature of this place sometimes. It never stays poor forever, and a few days can change everything.
Keep the faith.
Rusty.
Short Range ForecastMostly dry. Warm (max 21°C on Thu morning, min 13°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 22°C on Thu afternoon, min 16°C on Thu night). Wind will be generally light. | |||||||||||||||||||
Mon 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | ||||||||||||||
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) | SSW 15 | SSW 14 | SSW 15 | SSW 16 | SSW 14 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SW 18 | NW 7 | SSW 13 | NW 7 | WNW 8 | WNW 8 | S 16 | WNW 9 | SW 18 |
Wave Graph | ||||||||||||||||||||
334 | 236 | 322 | 366 | 163 | 305 | 322 | 256 | 156 | 183 | 184 | 105 | 131 | 99 | 106 | 128 | 125 | 129 | 144 | 157 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | cross | cross | cross-off | cross-on | cross | cross-off | cross | cross | cross-off | cross | cross | cross-off | cross | cross | cross | cross | cross | cross |
High Tide | 2:35PM1.97m | 3:30AM1.43m | 3:15PM1.94m | 5:05AM1.33m | 4:02PM1.90m | 7:01AM1.33m | 4:57PM1.88m | 8:32AM1.39m | 5:58PM1.89m | 9:19AM1.45m | 6:56PM1.93m | 9:50AM1.50m | 7:47PM1.98m | |||||||
Low Tide | 9:30PM0.70m | 8:35AM1.00m | 10:40PM0.68m | 9:12AM1.15m | 11:53PM0.64m | 10:03AM1.27m | 1:01AM0.58m | 11:22AM1.34m | 1:57AM0.51m | 12:43PM1.34m | 2:43AM0.43m | 1:43PM1.31m | 3:21AM0.36m | |||||||
— | — | 6:26 | — | — | 6:28 | — | — | 6:28 | — | — | 6:30 | — | — | 6:31 | — | — | 6:31 | — | — | |
7:58 | — | — | 7:55 | — | — | 7:54 | — | — | 7:53 | — | — | 7:52 | — | — | 7:51 | — | — | 7:50 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 17 | 14 | 17 | 19 | 16 | 18 | 19 | 17 | 21 | 22 | 19 | 21 | 22 | 19 | 20 | 21 | 19 | 20 | 20 | 17 |
Feels °C | 16 | 12 | 15 | 16 | 13 | 16 | 17 | 15 | 19 | 18 | 16 | 18 | 18 | 16 | 18 | 18 | 17 | 18 | 17 | 15 |
Swell 1 Height (m) Direction Period (s) | SSW 15 | SSW 14 | SSW 15 | SSW 16 | WNW 7 | WNW 8 | SSW 15 | WNW 8 | SSW 14 | SSW 14 | WNW 7 | WNW 11 | WNW 11 | SSW 13 | WNW 7 | SSW 13 | WNW 8 | WNW 8 | SSW 12 | WNW 9 |
334 | 236 | 322 | 366 | 104 | 107 | 322 | 117 | 156 | 183 | 108 | 91 | 64 | 99 | 51 | 65 | 125 | 111 | 51 | 84 | |
Swell 2 Height (m) Direction Period (s) | WNW 9 | WNW 6 | WNW 7 | W 16 | SSW 14 | SSW 15 | W 12 | SSW 15 | WNW 12 | WNW 12 | WNW 11 | SSW 14 | SSW 13 | WNW 10 | WNW 10 | SW 17 | SSW 16 | S 16 | SW 18 | S 14 |
26 | 22 | 35 | 19 | 163 | 305 | 78 | 256 | 107 | 109 | 91 | 105 | 99 | 58 | 56 | 73 | 97 | 129 | 83 | 106 | |
Swell 3 Height (m) Direction Period (s) | SSW 10 | WNW 9 | WNW 8 | S 10 | SSW 17 | WNW 13 | S 22 | WNW 11 | SSW 19 | SW 19 | SSW 14 | SW 18 | SW 18 | SSW 17 | SSW 13 | S 10 | SSW 12 | SW 19 | SSW 16 | SW 18 |
9 | 26 | 24 | 2 | 95 | 59 | 9 | 102 | 36 | 15 | 183 | 81 | 79 | 30 | 68 | 2 | 29 | 94 | 84 | 157 | |
Wind waves Height (m) Direction Period (s) | WNW 7 | NW 7 | NW 7 | WNW 8 | — | — | WNW 8 | NW 8 | WNW 7 | NW 5 | NW 7 | WNW 7 | NW 7 | WNW 7 | NW 7 | WNW 8 | — | — | WNW 9 | — |
25 | 75 | 65 | 122 | — | — | 138 | 244 | 88 | 67 | 184 | 99 | 131 | 83 | 106 | 128 | — | — | 144 | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 17 | 0 | 13 | 13 | 0 | 13 | 13 | 0 | 13 | 13 | 0 | 13 | 13 | 0 | 13 | 13 | 2 | 13 | 13 | 2 |
Best forecast wave conditions in Santa Cruz | ||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
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Information about the 4 Mile Surf forecast
The above surf forecast table for 4 Mile provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at 4 Mile can be found by selecting the local surf guide option on the grey menu. Our 4 Mile 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 (4 Mile) 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 4 Mile 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.
4 Mile is 12 km (7 miles) from Santa Cruz. If you plan a vacation in Santa Cruz, look for hotels and other accommodation in Santa Cruz. Santa Cruz has rooms for a wide range of budgets as well as car hire and transport links.











