Photo: Cathy from USA · CC BY-SA 2.0Few parks or trails are on the map in San Ysidro
10% of San Ysidro’s land is conserved, about 151 acres.
Conserved land, trails & bike routes
Tap a number to zoom to a park. Tap a layer to hide it.
151 conserved acres
10% of San Ysidro’s land. Who manages San Ysidro’s conserved land, from the USGS Protected Areas Database. Approximate, because parcels can overlap.
Conserved doesn’t always mean open to visitors. 55 acres are conservation easements, usually private land. The walks above are places people visit.
| Parcel (PAD-US) | Managed by | Acres | Public access |
|---|---|---|---|
| Rio Puerco Field Office National Public Lands | Bureau of Land Management | 96 | Open |
1 lakes & rivers
0.3 miles of bike routes
Bike lanes are often missing from the map in smaller towns, so that number is likely low.
Includes school and college facilities, which aren’t always open to the public.
The best walking months in San Ysidro: April and May
NOAA’s 1991–2020 normals for the town and the daylight at its latitude. Outlined months have long days, highs of 59 to 86 °F and little rain for the place.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 10.0 | 10.8 | 11.9 | 13.0 | 14.0 | 14.5 | 14.3 | 13.5 | 12.3 | 11.2 | 10.2 | 9.8 |
| High (°F) | 48 | 54 | 63 | 70 | 80 | 91 | 92 | 90 | 83 | 72 | 58 | 47 |
| Rain (in) | 0.4 | 0.3 | 0.5 | 0.5 | 0.6 | 0.5 | 1.7 | 1.7 | 1.3 | 1.1 | 0.6 | 0.5 |
February is the driest month (0.3 in) and July the warmest (highs of 92 °F). 1.7 inches fall in August, the wettest month. Summer highs reach 92 °F, too hot for the outline. The climate in San Ysidro →
Questions about parks and trails in San Ysidro
Where can I bike in San Ysidro?
0.3 miles of bike routes are on the map: 0.3 of off-road paths.
Is there public land near San Ysidro?
39,688 acres of parks and open public land lie inside San Ysidro or within 10 miles of it (PAD-US), 96 of them inside the town line.
Trail talk
Conditions, parking and favorite walks from San Ysidro neighbors.
Where this page comes from
Conserved and public land: USGS Protected Areas Database of the United States (PAD-US), service updated July 2026. Parks, trails, playgrounds, beaches and other places: OpenStreetMap (© OpenStreetMap contributors, ODbL), map data as of 2026-10-28. Land and water area: Census 2025 Gazetteer. Residents near a park: 2020 Census blocks. National Register: National Park Service. How TownRatings grades the outdoors →