Denver at 25 to 35: The Altitude Stuff Nobody Warns You About

Nobody tells you that moving here means your body needs a minute to catch up. You show up, go out the first weekend, and wake up feeling way worse than two drinks should allow.

Denver's city center sits at 5,280 feet, and the metro runs from about 5,130 to 5,690 feet, per Visit Denver (checked 2026-11-06). That's high enough that water, booze and exercise all hit a little differently while you adjust.

Here's what the one official health source we found says, plus what's just common sense.

The short version

Drink a lot more water than you're used to. Go easy on alcohol early on. Don't plan a huge hike or a long ski day the week you land. That's basically the advice from Denver Health (July 2026).

Specifically, Denver Health says to drink two to three times more water than usual at higher elevations, because you lose fluids faster through breathing and activity. It also says alcohol adds to dehydration and can make altitude sickness worse, and suggests waiting until your body has adjusted before drinking.

What people actually do

Realistically, most new arrivals aren't skipping the welcome drinks. What tends to work is the boring stuff: a water between rounds, an actual meal before going out, and not treating your first Saturday like a stress test. If you're heading to a show from the events calendar, taking RTD means you're not driving after drinks you can't quite calibrate yet.

For mountain weekends, Denver Health's page is mostly about the high country, and it says to go up gradually where you can instead of heading straight to the highest point. So the classic move of landing and driving straight up to a summit trail the next morning is the one to rethink.

On sun: we couldn't find official city, state or health guidance tied to Denver's altitude, so we're not going to hand you numbers. The practical move is the obvious one. Sunscreen and sunglasses live in your bag year-round, including November.

The practical stuff

• Carry a water bottle. Refilling all day is the easiest way to hit that two-to-three-times target.
• Ease into workouts. Denver Health says to take it easy on day one and skip strenuous hikes, long ski days or intense exercise right after arriving.
• Know what mild looks like. Denver Health says mild altitude sickness often improves within a day or two with rest, water and no strenuous activity.
• Don't ignore it if it gets worse. Same source: worsening symptoms should never be brushed off. Get checked.

Want the longer breakdown on hangovers, headaches and adjustment time? Read The Denver Altitude Guide, or browse the rest of our guides.