San Luis Rey
AVA · San Diego County · District 16
27 CFR 9.295 · established 2024-08-30
Heat class IV · 1991-2020 normals
Climate normals in three numbers
, Apr 1 – Oct 31
40 GridMET cells cover this region
season rain, Apr 1 – Oct 31
20 mm of it in the , Sep 1 – Oct 31
Warm and cool vintages since 1980
loading vintages…
Rain across the season, and at harvest
loading vintages…
The boundary
Hovering a shaded region names it; a click opens its page.
Measured vineyard area
loading crop mapping…
Drought categories, year by year
San Diego County — not San Luis Rey
loading drought monitor…
What's in the ground
6.5
pH, 1:1 water
12.5cm
, whole profile
100cm
to
Well drained
, dominant condition
Distribution across 147 · mean ◆, median │, p10–p90 bar
Dominant
- 16.6%
- 14.2%
- 13.5%
- 8.2%
- 8.0%
147 map units · soil described over 92.0% of the region’s area · 11.5% is water, rock outcrop or other non-soil · 76% of the described area has a restrictive layer within the profile.
Sand, silt and clay, against every other appellation
Sandy loam
60% sand · 23% silt · 17% clay
Sandier than 89% of California appellations and clayier than 14%. Each grey point is one appellation’s topsoil; appellations nest, so this is a distribution of places rather than of land.
Plus 6% rock fragments by volume, which the triangle does not describe — the three fractions are of the fine-earth material only.
Elevation, slope and aspect
loading terrain…
Bearing acreage by variety
San Diego County · District 16
loading acreage…
Price per ton
San Diego County · District 16
loading crush report…
The appellation in federal law
The boundary, in the government’s own words (719 words)
(c) Boundary. The San Luis Rey viticultural area is located in San Diego County, California. The boundary of the San Luis Rey viticultural area is described as follows: (1) The beginning point is on the Oceanside map at the intersection of Interstate 5 and the Marine Corps Base (MCB) Camp Pendleton boundary. From the beginning point, proceed northeast for a total of 11.21 miles along the MCB Camp Pendleton boundary, crossing over the San Luis Rey map and onto the Morro Hill map, and continuing along the MCB Camp Pendleton boundary to its intersection with the Naval Weapons Station (NWS) Seal Beach Fallbrook California boundary; then (2) Proceed east along the NWS Seal Beach Fallbrook California boundary for a total of 6.85 miles, crossing onto the Bonsall map and continuing north, then west along the boundary, and crossing back onto the Morro Hill map and continuing northerly along the boundary, crossing onto the Fallbrook map, and continuing along the boundary as it becomes concurrent with the MCB Camp Pendleton boundary, and continuing along the boundary to its intersection with De Luz Road; then (3) Proceed east along De Luz Road for 0.38 mile to its intersection with Sandia Creek Drive; then (4) Proceed northerly along Sandia Creek Drive for a total of 3.98 miles, crossing onto the Temecula map and continuing along Sandia Creek Drive to its intersection with an unnamed road known locally as Rock Mountain Road; then (5) Proceed east along Rock Mountain Road for 0.21 mile to its intersection with the San Diego County line; then (6) Proceed south then east along the San Diego County line for 6.72 miles to its intersection with an unnamed road known locally as Old Highway 395; then (7) Proceed south along Old Highway 395 for a total of 14.9 miles, crossing onto the Bonsall map and continuing south along Old Highway 395 to its intersection with an unnamed road known locally as Old Castle Road; then (8) Proceed east on Old Castle Road for a total of 0.59 mile, crossing onto the San Marcos map and continuing east along Old Castle Road to its intersection with Gordon Hill Road; then (9) Proceed southeasterly along Gordon Hill Road for 0.92 mile to its intersection with the 800-foot elevation contour; then (10) Proceed east along the 800-foot elevation contour for a total of 2.5 miles, crossing onto the Valley Center map and continuing east along the 800-foot elevation contour to its intersection with Canyon Country Lane; then (11) Proceed northwest and then south along Canyon Country Lane for 0.83 mile to its intersection with the 1,240-foot elevation contour; then (12) Proceed east along the 1,240-foot elevation contour for 2.90 miles to its intersection with Cougar Pass Road; then (13) Proceed west then south along Cougar Pass Road for 0.4 mile to its intersection with Meadow Glen Way East; then (14) Proceed south along Meadow Glen Way East for 0.46 mile to its intersection with Hidden Meadows Road; then (15) Proceed southwest along Hidden Meadows Road for 0.73 mile to its intersection with Mountain Meadow Road; then (16) Proceed southwest along Mountain Meadow Road for a total of 1.44 miles, crossing onto the San Marcos map and continuing along Mountain Meadow Road to the point where Mountain Meadow Road becomes known as Deer Springs Road just west of Interstate 15; then (17) Proceed southwest along Deer Springs Road for 2.42 miles to its intersection with an unnamed road known locally as North Twin Oaks Valley Road; then (18) Proceed south along North Twin Oaks Valley Road for 3.01 miles to its intersection with an unnamed road known locally as West Mission Road; then (19) Proceed northwest along West Mission Road (which becomes South Santa Fe Avenue) for a total of 3.9 miles to its intersection with Robelini Drive; then (20) Proceed southwest along Robelini Drive (which becomes Sycamore Avenue) for a total of 0.55 mile to its intersection with State Highway 78; then (21) Proceed northwest, then westerly along State Highway 78 for a total of 9.09 miles, crossing onto the San Luis Rey map and continuing westerly along State Highway 78 to its intersection with Interstate 5; then (22) Proceed northwest along Interstate 5 for a total of 3.14 miles, crossing onto the Oceanside map and returning to the beginning point.