Nai Harn Beach Surf Forecast and Surf Report

Alright, I’ll give it to you straight, as usual. Nai Harn Beach has been pretty flat for days, and it’s looking like a long, quiet stretch ahead. The first week is a real bust – we’re talking tiny leftover bumps, mostly under 1 foot, with a consistent cross-onshore breeze messing it up. The water temperature is sitting at 86°, which is about 2° warmer than normal for this time of year, so it’s a touch on the warm side but nothing crazy. The combined swell energy is in the weak range (values between 4 and 34), confirming there’s just nothing doing. It’s going to be a frustrating wait for anyone itching for a wave.

Around Tuesday the 4th of August, things finally start to pick up. We get a pulse of 6 to 8 feet swell from the WSW, but the problem is the wind. It’s a fresh cross-onshore at 19 mph, turning the ocean into lumpy, choppy junk. The period is short, around 8 seconds, so it’s just messy windswell. The combined energy jumps into moderate territory (480 to 863), so there’s power, but it’s not rideable in any fun way.

That pattern holds through the 5th, 6th, and 7th – we’ve got solid wave heights, mainly from the W to WSW, 5 to 8 feet, with period hovering around 8 to 9 seconds. The winds stay mostly onshore or cross-onshore, swinging from WSW to SSW, at 9 to 22 mph. The combined energy stays moderate to strong (285 to 924), so there’s plenty of oomph, but unless you’re a kite surfer, you’ll be fighting the wind and chop. For paddle surfing, it’s rough.

The best window in the whole outlook is around Monday the 10th and Tuesday the 11th of August. On the 10th, we get 6 feet swell out of the west, with a gentle breeze from the SSW. It’s still cross-onshore, but much lighter, around 9 mph. The combined energy is 550, so moderate and punchy. By Tuesday the 11th, the swell is up to 8 feet from the west with an 8-second period, and the wind drops to a light breeze. The combined swell energy is 720 – solid. But at 8 feet, this is only for experienced surfers; beginners should stay out of the water. It’s a beach and reef setup, and with a short period, it’s going to be a bit lumpy and peaky, not the cleanest lines.

After that, by Wednesday the 12th of August, it drops back to flat, with a tiny 0.3 feet and weak energy (5 to 6). So yeah, it’s a long, slow run. If you’re patient, the 10th and 11th are your best bet, but don’t expect perfection – the wind is never truly offshore, and the swell is pretty average for the area. The break itself is inconsistent, so these little windows are what you get. Crowds are possible, especially if a bit of size shows.

Honestly, this setup looks more interesting for kite surfing than paddle surfing on most days with that wind and chop. For the rest of us, it’s a waiting game.

Rusty.

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