Castro Valley is a census-designated place (CDP) in Alameda County, California, United States. At the 2020 census, it was the fourth most populous unincorporated area in California. The population was 66,441 at the 2020 census.
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Castro Valley is named after Guillermo Castro, a noted 19th-century Mexican Californio ranchero who owned the land where the community is located.
From the Wikipedia article Castro Valley, California, 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 Castro Valley
- Ashland2.4 km W
- Hayward2.9 km S
- San Lorenzo4.7 km SW
- San Leandro7.0 km NW
- Union City12 km SE
- Dublin13 km E
- San Ramon14 km NE
- Danville16 km NE
Straight-line distance and compass bearing from the town centre.