Harbor Entrance at Eureka Surf Forecast and Surf Report

Alright folks, Rusty here. Let’s have a look at what’s in store for the stretch ahead. We’ve got a long window, but first off, I gotta be straight with you—the start of this outlook is a bit of a slow burn. The real action doesn't start to show up until we get into the second week. For the first week or so, it's a waiting game.

Alright, let’s talk about the one spot we’ve got on the radar: Harbor Entrance at Eureka. This is a beach/harbormouth setup, and it’s fairly consistent, but it’s an advanced wave. It’s exposed to the swell, and the optimum direction is from the NW.

The water is sitting at 56°F right now, which is about average for the time of year—nothing crazy there.

So, the first real pulse of interest comes on Friday, July 25th. The morning shows a small 4 ft swell from the SW, but the wind is a cross-on 6 mph from the W, which is a bit of a bummer. The afternoon is a little cleaner with the wind swinging NW, but the swell is still only 3 ft. The combined energy is moderate (1268), but the conditions are nothing to write home about. It’s a *maybe* session.

The same pattern holds through the weekend and into the start of the week. The swell hangs around 3 ft to 4 ft, mostly from the SW, but the wind is always cross-on; it’s never really clean. The energy stays moderate (between 791 and 1159), but the quality just isn’t there for a good paddle. It’s more of a grovel than a stand-out session.

Then we hit a slump. Tuesday, July 28th through Friday, July 31st is pretty grim. The swell drops off, and the wind is a mix of cross-on and onshore breezes. The energy is weak (under 150), and the period is short (6 to 9 seconds). This is a tough stretch—kite surfers might find it more interesting than us paddle surfers, given the wind and small, choppy waves.

Now, here’s where it gets interesting. Saturday, August 1st, we start to see a change. The swell jumps to 8 ft from the NNW, but it’s a short period (8 seconds). The morning wind is 9 mph from the NNW, which is onshore, but it’s light. The energy is strong (865). This is for experts only—8 ft is big, and with that short period, it’s going to be a close-out freight train at a beach break. The afternoon picks up a 16 mph north wind, making it ugly.

The real standout, the one you’ve been waiting for, is Sunday, August 2nd and Monday, August 3rd. We’ve got a solid 10 ft to 12 ft swell from the NNW, with a period of 9 seconds. The energy is very strong (1461 to 2312). The morning winds are a light 9 mph from the NNW, which is onshore, but light. The wave comment says "marginal surf forecast or questionable tide conditions," but for a big-wave charger, this is the window. The afternoons get a bit bumpy with a cross-on breeze, but those mornings? That’s the time to be out. This is a big, powerful, expert-only swell. If you’re not a serious surfer, stay on the beach.

The size holds through the start of the next week, with Tuesday, August 4th and Wednesday, August 5th still pumping 8 ft to 12 ft from the NW. The energy is off the charts (1151 to 2206). The wind is a persistent issue—always cross-on or onshore—but the sheer power of the swell is undeniable. The period is still short (9-10 seconds), so it’s going to be a wall of white water at the beach break.

The run starts to fade by Friday, August 7th and Saturday, August 8th, with the swell dropping back to 7 ft and the energy weakening. The wind is still a problem.

So, the bottom line: The first week is a write-off. The standout is the punch of big swell from August 1st through August 5th. It’s not clean, and it’s big, but for the experienced crew, that’s your window. Keep an eye on the wind, but the power is there.

Stay safe, and I’ll see you in the water.

Rusty

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