Santa Ana Season: Training Outdoors in Offshore Winds
· John Manzano
Some morning in the next few weeks you will walk out for a session and the air will be warm, clear and moving the wrong way, off the desert instead of off the water, and by the third set your mouth will be dry, your shirt will still be clean and the handle in your hands will have gone slick with grit. Training in Santa Ana winds looks like the easiest weather day of the month on a forecast app, no cloud deck to wait out and no damp bench to wipe down, which is exactly why almost nobody changes anything about the session except drinking a bit more water on the way home. The wind has changed four things. Temperature is the least interesting of them.
The Offshore Wind Runs the Marine Layer Backwards
Most of the year the South Bay is downwind of an enormous cold body of water, the air arrives already loaded with moisture, and the cloud deck sits on Hawthorne Boulevard until ten in the morning and then burns off. We wrote about what that does to a session in the marine layer piece, and the short version is that damp, still, cool air makes the work feel heavier than it is while keeping you from overheating.
A Santa Ana reverses the plumbing. High pressure builds inland over the Great Basin, the air spills west and downhill toward the coast, and on the way down it gets compressed and warms up. Warmer air can hold far more water vapour than cool air, so the same amount of moisture riding in that parcel of air becomes a much lower relative humidity by the time it reaches Torrance, which is why the forecast in a real offshore event shows a humidity figure in single figures rather than the number you have ignored all summer. Then the whole thing accelerates through the canyons and passes and comes over the hill at us, so it is warm, dry, fast and carrying whatever it picked up on the way.
Those four properties do separate jobs on a training session and they do not cancel each other out, which is the part people get wrong when they treat a Santa Ana day as simply a hot day.
Your Sweat Cue Stops Working in Single-Digit Humidity
Sweating does not cool you. Evaporation cools you, because turning liquid water on your skin into vapour takes a large amount of heat and that heat comes out of you. In humid coastal air the surrounding air is already close to holding all the water it can, evaporation is slow, so the sweat sits there and runs off you and you finish a set looking like you worked, which is uncomfortable and also a reasonably honest signal.
Move that same session into dry, fast air and the sweat leaves as vapour almost as quickly as it reaches the surface, helped along by a wind that keeps stripping the saturated layer off your skin. Your shirt stays dry, your skin feels cool, and the fluid has still left the building, it just left invisibly. Thirst is a lagging indicator at the best of times, and on an offshore day you have also lost the visual one, so the two cues you normally use are both quiet while the loss itself has gone up. That is reasoning from the mechanism rather than a finding from a paper, and the useful thing about it is that you can check it yourself on a bathroom scale.
Weigh yourself before and after in the same kit. Water weighs roughly a gram per millilitre, so a pound off the scale in an hour is about 450 ml of fluid gone and none of it came off your waistline. Replace it across the rest of the day rather than in one go at the end. How much sodium you want alongside it is a question for a professional if you have any condition that touches fluid or blood pressure, and this is a training blog, so that is where we stop.
The same dry air works on your airway. You breathe several times more air per minute during a hard set than during the drive over, and in a Santa Ana every liter of it arrives dry and leaves humidified, which is why your throat feels like sandpaper after heavy squats and why the last three sets seem to cost more than they should.
Grip Fails Before the Muscle Does in Dry Air
Skin grips a steel bar through a thin film of moisture. Too much of it and your hand hydroplanes off the knurling, which is the problem chalk exists to solve, and it is the problem you have in June. In single-digit humidity there is very little moisture to manage, the skin on your palms goes hard and stops conforming to the pattern in the knurl, and a heavy coat of chalk on top of already dry skin mostly polishes the contact rather than improving it. Add the dust the wind is carrying, which settles on every exposed handle and behaves like a layer of tiny ball bearings, and the bar is genuinely more slippery than it was last week at the same bodyweight and the same load.
On our floor the first thing staff do during a Santa Ana week is go round the outdoor handles and the sandbag grips with a towel, because a wiped handle in dry air beats a dusty handle with more chalk on it every time. The second adjustment is less romantic: use straps for your top pulling sets so the set finishes when your back is finished rather than when your fingers are, which matters more than usual on the heavy days described in the deadlift deep-dive. Keep your calluses filed flat during this part of the year, because raised dry callus is what tears. If skin does tear, that is a professional’s problem and not something to train through on a hunch.
The Air Quality Matters More Than the Heat
A Santa Ana lifts dust and everything sitting on top of it, and in October it also carries whatever is burning inland. The reason this outranks the temperature for a lifter is simple arithmetic about breathing: a hard sled push or a loaded carry moves several times more air through you every minute than sitting still does, because that is what breathing hard means, so an outdoor conditioning finisher is the single highest exposure activity in your day by a wide margin. Whatever number is in the air, you take in far more of it during the ten minutes you least wanted to be sensible about.
Check a reading before you decide, not the temperature. General guidance on exercising in heat and poor air belongs with the bodies that publish it, and the American College of Sports Medicine is the sane place to look rather than a gym blog. If you have asthma or any respiratory condition at all, the decision is a conversation with your doctor and not with us.
When the reading is poor, move the conditioning indoors and stop worrying about what that costs you. Adding aerobic work to a lifting program does not meaningfully blunt muscle fiber growth, so the interference effect people invoke to justify skipping it is smaller than the folklore claims (Lundberg 2022), and a week of intervals on the cardio deck will not undo anything. Most weeks of the year the case for going outside stands, and we have made it at length in the outdoor training piece. Four or five days a season, it does not.
Training in Santa Ana Winds: What to Change in the Session
- Read the hourly forecast, not the daily one. Wind is the most hour-to-hour variable thing on there, and an event that is unworkable at eight can be fine by two.
- Split the session by exposure. Carries, sled work, sandbags and slam balls outside while the air is good, top sets of the main lift inside where the wind is not shoving you at the bottom of a squat and nobody has to shout a cue over a gust.
- Take the full rest and stop apologising for it. Three minutes between sets produced more strength and size than one minute in trained men (Schoenfeld 2016), and in warm dry air you will want every second of it. There is more on how to use that time in our guide to rest between sets.
- Wipe handles, chalk lighter. Dust on knurling is the actual problem in this weather.
- Judge the set by effort, not by the number on the bar. The same load reads heavier when you are down half a liter and your grip is going, so run the session off reps in reserve and accept a lighter top set, which is the whole argument in our reps in reserve piece.
- Weigh in and weigh out, and drink to the difference over the afternoon.
Frequently Asked Questions
Is it safe to train outdoors during a Santa Ana?
For most healthy people it comes down to the air quality reading and the sense to shorten the outdoor portion, keep fluid up and skip the conditioning finisher outside when the number is poor. If you have a respiratory condition, that decision belongs with your doctor rather than with a training article.
Why does my grip feel worse when the air is dry?
Your hands hold the bar through a thin film of moisture and a hard callus grips badly, so dry skin plus airborne dust on the knurling gives you less friction than a normal day. Wiping the handle helps more than adding chalk, and straps let a heavy pulling set end where it should.
Do I actually need to drink more in offshore winds?
You lose fluid faster and you notice it less, because the sweat evaporates before it pools and your shirt never gives the game away. The scale before and after the session is the only honest feedback you have, and a pound is roughly 450 ml.
Does the wind make the weight harder to lift?
A gust moves you rather than the bar, which shows up as balance work you did not ask for during squats, overhead pressing and anything unilateral. Loaded carries and sled work are barely affected, which is part of why they stay outside on those days.
When is Santa Ana season in the South Bay?
The events usually run from around September into winter, with October and November the months most likely to catch an outdoor program still built for summer. They tend to arrive in bursts of a few days rather than settling in for weeks.
Come and See the Indoor Half of the Plan
The reason a Santa Ana week is an inconvenience here rather than a write-off is that 17,500 square feet of it is indoors, and the outdoor space is something you use when it is worth using. If you train anywhere from Torrance out to Palos Verdes Estates and your October sessions keep getting decided by the weather, come and walk the floor with us. Book the complimentary VIP Tour and Training Pass, by appointment, and our staff will show you what moves inside when the wind turns.
Fight for the person you know you are.