San Luis is a city in Yuma County, Arizona, United States. The population was 35,257 at the 2020 census. It is part of the Yuma County Metropolitan Statistical Area. San Luis, located in the southwest corner of the state directly adjacent to Mexico's Federal Highway 2 at San Luis Río Colorado, Sonora, was the second fastest-growing city or town in Arizona from 1990 to 2000. According to 2025 Census Bureau estimates, the population of the city is 42,030.
From the Wikipedia article San Luis, Arizona, CC BY-SA 4.0.
Weather
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Forecast by Open-Meteo from national weather models. A forecast, not a measurement.
The past twelve months
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ERA5 reanalysis from Copernicus, via Open-Meteo. Modelled on a ~25 km grid, not measured at a station.
Air right now
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CAMS European and global air quality forecast, via Open-Meteo. Modelled on an 11–40 km grid; European AQI bands from the EEA.
Nearby on Wikipedia
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Articles with coordinates within 10 km, from English Wikipedia.
Towns around San Luis
- San Luis Río Colorado3.7 km S
- Somerton14 km NE
- Yuma30 km NE
- Ciudad Guadalupe Victoria37 km SW
- Fortuna Foothills40 km NE
- Puebla54 km W
- Mexicali65 km W
- Calexico71 km W
Straight-line distance and compass bearing from the town centre.