Fall Arizona Trail through hike

Conditions will vary ENORMOUSLY on the AZT, and sometimes the changes will come very quickly (i.e., desert-to-9,000ft-altitude in one day).

By late September, monsoons will be long over (they end around the beginning of Sept.), and mosquitoes will be a non-issue. There will be tiny gnats, but most people aren't bothered by them (ok, some people get a small allergic reaction, but very few).

By going SOBO, you'll be hitting the high areas near Flagstaff before the real cold sets in, which is good.

You may get an occasional rain shower (snow at altitude), or you may have none. In general, you'll be hiking during the "dry season". Monsoons haven't started yet, so it's hard to say whether your water situation will be dicey or not.

Your likely enemies will be heat, intense sun, cold nights, and scarce water.

Thanks Valerie – what do you think I should expect for low temperatures at night with reasonable campsite selection?

The trail passes through SO many different "life zones" that I can't really answer your question! In Arizona, traveling from 1,000ft elevation to 9,000ft elevation is called "Mexico to Canada". When you're between 7,000ft and 9,000ft — nighttime temps in Sept/Oct should be in the 30Fs. When you're between 5,000ft and 7,000ft, it should be in the 40Fs; and when you're down on the desert floor, it should be in the 50Fs (but it'll feel colder after being out in the hot sun all day). If a storm system comes through, it could be 10F or more colder…and if we get a heat wave, it could be 10F or so warmer…

I hate to be vague, but look at the elevation profile of the trail, and you'll understand. :^)

I would add a prefilter system, something to strain some of the debris out of your water before it hits your Sawyer.

Recommend us a prefilter system?