4 Mile, North Santa Cruz | CDIP 029 (Point Reyes / Pt Cabrillo Buoy Data)
Thursday, September 17, 2026 — 02:00 AM PDT
Main Peak / Point: Knee to waist high (1–3 ft faces).
Inside / Reef Sections: Knee high lines, slow-moving with longer lulls.
Summary: Small, clean conditions early on with a mix of mid-period NW swell (6 ft @ 8s offshore) and background S swell (2 ft @ 16s). Best suited for high-volume boards or longboards.
Current Conditions: Clear to patchy morning fog/drizzle, 54°F.
Expected High: 68°F.
Current Wind: NW at 6 mph (Light offshore/sideshore feel along the cliffs).
Wind Trend: Light early morning winds will shift W/SW by midday at 5–10 mph, turning light NW overnight. Glassy to light textured surface early before minor afternoon onshore chop.
High Tide: 5:10 AM PDT (3.3 ft)
Low Tide: 8:04 AM PDT (3.2 ft)
High Tide: 2:53 PM PDT (4.7 ft)
Low Tide: 10:56 PM PDT (0.9 ft)
Primary Swell: NW (300°–310°) 5–6 ft at 8 seconds.
Secondary Swell: S (180°–190°) 2 ft at 16 seconds.
Surf Trend Today: Holding knee to waist high throughout the day. Moderating wind in the afternoon.
Tomorrow Outlook (Friday, Sep 18): NW swell eases slightly to 4–5 ft at 8–9 seconds with background S swell holding (2 ft at 15s). Surf remains mostly knee to waist high with increasing NW afternoon breezes (10–15 mph).
| TIME | WIND DIRECTION | WIND SPEED |
|---|---|---|
| 06:00 AM | NW (Offshore/Sideshore) | 5 mph |
| 07:00 AM | NNW (Offshore) | 5 mph |
| 08:00 AM | N (Offshore) | 4 mph |
| 09:00 AM | VRB (Glassy) | 3 mph |
| 10:00 AM | W (Light Onshore) | 5 mph |
| 11:00 AM | W (Sideshore/Onshore) | 6 mph |
| 12:00 PM | WSW (Onshore) | 7 mph |
| 01:00 PM | SW (Onshore) | 8 mph |
| 02:00 PM | SW (Onshore) | 9 mph |
| 03:00 PM | SW (Onshore) | 8 mph |
| 04:00 PM | WSW (Onshore) | 7 mph |
| 05:00 PM | W (Sideshore/Onshore) | 6 mph |
First Light: 6:27 AM PDT
Sunrise: 6:52 AM PDT
Sunset: 7:12 PM PDT
Total Darkness: 7:37 PM PDT