Cape Horn Tunnel



Linear underground passageway open at both ends.
man-made Icon Man-made
Map Marker

GPS Coordinates

Latitude, Longitude:
32.8875495°, -116.8444692°
Elevation Icon


879 ft. (268 m.)

Topographic Map

US Topo Map

The USGS (U.S. Geological Survey) publishes a set of the most commonly used topographic maps of the U.S. called US Topo that are separated into rectangular quadrants that are printed at 22.75"x29" or larger. Cape Horn Tunnel is covered by the El Cajon Mountain, CA US Topo Map quadrant

Free US Topo Map PDF Order Waterproof Printed Topo Map
Water Icon Water
Land Icon Land
Man-made Icon Man-made

Nearby Cities

Bonsall, CA 35 mi
Aguanga, CA 38 mi
Rainbow, CA 40 mi
Fallbrook, CA 41 mi
Temecula, CA 45 mi

Nearby Points of Interest

El Monte Park Man-made 0.3 mi
El Monte County Park Picnic Site Man-made 0.3 mi
Reynon Ranch Man-made 1.6 mi
Blossom Valley Reservoir 1060 Dam Man-made 1.8 mi
El Capitan 8-007 Dam Man-made 2.0 mi

Nearby Photos

Photos provided by Panoramio and Flickr are under the copyright of their owners.

Historical Weather

Below are weather averages from 1971 to 2000 according to data gathered from the nearest official weather station. The nearest weather station for both precipitation and temperature measurements is EL CAPITAN which is approximately 2 miles away and has an elevation of 600 feet (279 feet lower than Cape Horn Tunnel). Because the nearest station and this geographic feature may have differences in elevation and topography, the historic weather at the two separate locations may be different as well.

Average Daily Temperatures by Month (°F)

Average Monthly Precipitation (in inches)

Month Precip AVG High Temp AVG Low Temp
January 3.19" 70.2° 41.6°
February 3.35" 71.7° 42.8°
March 3.67" 72.1° 44.6°
April 1.21" 77.4° 47.0°
May .44" 80.9° 51.0°
June .15" 89.2° 54.1°
July .08" 95.9° 57.2°
August .13" 97.0° 59.2°
September .35" 93.7° 57.5°
October .81" 86.6° 52.6°
November 1.49" 77.8° 45.4°
December 2.01" 71.4° 41.5°

Summer High Temps

This location's average summer high temps are higher than 96% of other locations on record.

Winter Low Temps

This location's average winter low temps are higher than 95% of other locations on record.

Precipitation Levels

This location's average precipitation levels are lower than 81% of other locations on record.