El Mongol Surf Forecast and Surf Report

Alright folks, Rusty here. Let’s get into it.

The first week has some solid swell lines, but the windows are short. The standout is definitely the big Wednesday morning session. After that, the energy fades and the last week is mostly a flat spell.

Saturday, September 5th kicks things off at El Mongol with a solid NNW groundswell, 5 feet at 13 seconds. The combined energy is chunky at 820 moderate energy, and that light E cross-off wind keeps the surface clean. The afternoon builds to 6 feet with 1100 energy, still clean, but the wind picks up a touch. The water is about average for this time of year, nothin’ unusual.

Sunday, September 6th is a write-off. Morning gets a cross-on wind shift and a marginal forecast, and the afternoon is straight onshore with poor surf. Not worth paddling out.

Monday, September 7th morning brings a glassy dawn with 3 feet from the NW, 13 seconds, and 366 energy. It’s clean, but the size is small. Fun for a log, but not a standout.

Tuesday, September 8th is similarly small. 4 feet waves with glassy conditions in the morning and afternoon, but the energy is dropping to 255 and 224. Ordinary.

Wednesday, September 9th is the real highlight. The morning is a gem: 6 feet of NNW swell, 13 seconds, with a massive 1188 energy. The wind is glassy, absolutely zero bump. This is the best session on offer – clean, powerful, and that long-period groundswell will wrap in nicely at this reef. Expect long lulls between sets, but the waves that come through will be worth the wait. The afternoon stays 7 feet but picks up a cross-shore wind, so the morning is the one.

Thursday, September 10th is a step down. The swell drops to 5 feet, the wind turns cross-on, and the energy is 771. The afternoon is worse with onshore wind. Marginal.

Friday, September 11th morning is glassy with 3 feet, but the energy is low (247) and the period is short. Ordinary. The afternoon goes onshore and poor.

Saturday, September 12th is a flat day. 2 feet waves, barely any energy at 55. Don’t bother.

Sunday, September 13th morning is glassy with 3 feet, but the energy is low (255). Ordinary. The afternoon is poor.

Monday, September 14th through Tuesday, September 15th is a mix of poor and marginal surf. A 15-second period swell on the 15th brings 513 energy, but it’s 3 feet and onshore. Not great.

Wednesday, September 16th morning is glassy with 4 feet, 13 seconds, and 495 energy. It’s a clean, fun-sized wave, but nothing special. A solid 2/10 option.

Thursday, September 17th onward, the energy drops. The morning is glassy but only 3 feet. The rest of the week is small, clean, but weak. Friday, September 18th has a clean cross-off wind on 2 feet waves, but the energy is only 130. Not worth a paddle.

Saturday, September 19th and Sunday, September 20th are flat. 2 feet to 2 feet, no energy, glassy but dead.

So, the best bet is Wednesday, September 9th morning. That’s the one. After that, there’s a long gap of small, weak waves until the 16th, which is a decent but not epic morning session. The last week is a flat spell.

Rusty.

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