Organ Pipe Cactus National Monument

Climate and Map

Overview | Climate/Map | Description | Things to Do | Camping/Lodging | Nearby


Organ Pipe Cactus National Monument is located along the Mexican border in southwestern Arizona equidistant from Tucson, Phoenix and Yuma. It runs 40 to 50 miles from both east-to-west and north-to-south, encompassing some 500 square miles.

Most of the Monument is situated between the Ajo Mountain Range to the east and the Puerto Blanco Mountains to the west, with the Senita Plain extending west from here into the Cabeza Prieta National Wildlife Refuge.


Organ Pipe map
Click Here for PDF map of the Monument


Temperatures between October and April are normally 60 to 70 degrees F, but during May through September often exceed 105 degrees with humidity below 10%. Nights are considerably cooler than days throughout the year.

This region of the Sonoran Desert has two annual rainy seasons. December through March usually has gentle rains, while thunderstorms are likely during August and September, accounting for an annual average precipitation of 9.5 inches. Rain gear is recommended for park visitors during these months. Note that the late summer's rainy season is usually accompanied by temperatures in the 90's and high humidity.

At elevations ranging between 2,000 and 4,000 feet, temperatures are likely to vary greatly, especially season to season. Be prepared with sunscreen, hats and plenty of water.

Click for Ajo, Arizona Forecast


organ pipe

Getting There

By Auto
From the NORTH: follow AZ Hwy 85 through Ajo and Why. The Monument is 22 miles (35.4 km) south of Why. From the EAST: follow AZ Hwy 86 to Why, then turn south on AZ Hwy 85. From the WEST: follow I-8 to Gila Bend or I-10 to Buckeye, then turn south on AZ Hwy 85. From MEXICO: drive on Mexico Route 2 to Sonoyta, then north to Lukeville.

Plane & Public Transportation
Nearest airports are in Phoenix and Tuscon, then by private vehicle. No public transportation available.

Getting Around: No rentals or public transportation available in area. Access is by foot, cycle or private vehicle. During the winter season motorized tours of the Ajo Mountain scenic drive may be offered, check at the Kris Eggle Visitor Center for information.



Share this page on Facebook:

DesertUSA Newsletter -- We send articles on hiking, camping and places to explore, as well as animals, wildflower reports, plant information and much more. Sign up below or read more about the DesertUSA newsletter here. (It's Free.)

The Desert Environment
The North American Deserts
Desert Geological Terms



Monument Valley Navajo Tribal Park
The movie Stagecoach, in 1939 introduced two stars to the American public, John Wayne, and Monument Valley. Visiting Monument Valley gives you a spiritual and uplifting experience that few places on earth can duplicate. Take a look at this spectacular scenery in this DesertUSA video.

Glen Canyon Dam - Lake Powell Held behind the Bureau of Reclamation's Glen Canyon Dam, waters of the Colorado River and tributaries are backed up almost 186 miles, forming Lake Powell. The dam was completed in 1963. Take a look at this tremendous feat of engineering - the Glen Canyon Dam.

Canyon de Chelly National Monument
Canyon de Chelly NM offers the opportunity to learn about Southwestern Indian history from the earliest Anasazi to the Navajo Indians who live and farm here today. Its primary attractions are ruins of Indian villages built between 350 and 1300 AD at the base of sheer red cliffs and in canyon wall caves.

Laughlin - Lake Mohave - Colorado River
In the summer, Katherine's Landing at the southern end of Lake Mohave is a hub of activity. It has fuel, a general store, a restaurant and a snack bar. The Colorado River south of the dam offers many recreational opportunities. Take a look at this river destination!


Take a look at our Animals index page to find information about all kinds of birds, snakes, mammals, spiders and more!

Hot temperatures in the desertAre you interested in the temperatures in the desert?

Click here to see current desert temperatures!

DesertUSA is a comprehensive resource about the North American deserts and Southwest destinations. Learn about desert biomes while you discover how desert plants and animals learn to adapt to the harsh desert environment. Find travel information about national parks, state parks, BLM land, and Southwest cities and towns located in or near the desert regions of the United States. Access maps and information about the Sonoran Desert, Mojave Desert, Great Basin Desert, and Chihuahuan Desert.

Copyright © 1996-2019 and Digital West Media, Inc. - -