San Geronimo, California Weather
San Geronimo, California — live current conditions, hourly and 7-day forecasts, NWS alerts, aviation weather, radar and satellite imagery, tide predictions, marine conditions and a solunar fishing forecast, soil and crop conditions for San Geronimo, Marin County.
Tides, marine forecast and fishing conditions near San Geronimo. Tide source:
Flight conditions near San Geronimo. Data source: locating…
Soil conditions, frost risk and crop weather for San Geronimo.
About San Geronimo, California
San Geronimo breathes a quiet presence in Marin County, a place where the land gently slopes and rolls, its hillsides cloaked in a dappled green of oaks and bay trees. It lies 7.7 miles west-north-west of San Rafael, CA (from San Rafael, CA: bearing 291°T), and is situated 8.3 miles south-west of Novato. The air here, especially in the late afternoon, carries a faint, earthy perfume, a blend of damp soil and wild sage, and the sunlight, as it begins to soften, paints the western slopes in hues of warm gold. Creeks, like silent, silver threads, wind their way through the valleys, their banks often edged with ferns and the rustle of unseen creatures. This is a landscape that feels lived-in, not dramatically sculpted, but smoothed by the patient hand of seasons, where the rhythm of the days is measured less by clocks and more by the shift of shadows and the calls of birds. The story of San Geronimo is one of quiet evolution, its roots reaching back to the agricultural rhythms of the past, when ranches and farms dotted these verdant valleys. Today, its economy hums with a more varied tune, a blend of local businesses catering to the surrounding communities and a growing appreciation for its natural setting. The nearby open spaces and the proximity to coastal wonders draw a steady stream of visitors, yet San Geronimo itself retains a sense of groundedness, a place where the emphasis is on a good day's work and the simple pleasures of a life lived close to the land. It’s a locality that doesn’t shout its virtues, but rather whispers them in the rustle of leaves and the gentle flow of its waterways, a place that has found its own way to thrive.
Live animated radar for San Geronimo and surroundings — RainViewer.
NOAA GOES-16 GEOCOLOR — live animated loop updated every 10 minutes. Shows cloud cover, storm systems and weather patterns across the continental US.
Source: NOAA/NESDIS GOES-East · Public domain · Auto-updates on page reload
| Location | San Geronimo, Marin County, California |
| Coordinates | 38.013256°N, 122.663873°W |
| Timezone | Pacific Time (America/Los_Angeles) |
| ZIP Code(s) | 94963 |
| Area Code | 510 |
| Page generated | July 2026 |
| Weather data | Open-Meteo (open-source), NOAA National Weather Service |
About This San Geronimo, California Weather Page
This page provides live weather conditions and forecasts for San Geronimo, California, including current conditions, a 24-hour hourly forecast, 7-day outlook, NWS extended text forecast, real-time aviation weather (live METAR and TAF reports from the nearest reporting airport, with a modeled estimate shown when no station is in range), precipitation radar and NOAA GOES-16 satellite imagery. Additional sections may include tide predictions, wave height, wave direction and sea-surface temperature, a barometric pressure trend, and a solunar-based fishing forecast with a fishing-conditions rating for coastal localities, and soil temperature, crop weather and live USGS river gauge data for agricultural areas near a monitored waterway. All data updates automatically on every page visit.
Location data for San Geronimo includes coordinates 38.013256°N, 122.663873°W, situated in Marin County. ZIP code 94963. Telephone area code: 510. Timezone: Pacific Time (America/Los_Angeles).
Weather data is sourced from the NOAA National Weather Service (NWS) and the open-source Open-Meteo API. Aviation data is sourced from aviationweather.gov (NOAA), with a modeled estimate used where no nearby reporting station is available. River and stream data is sourced from the USGS National Water Information System. Tide predictions are sourced from NOAA CO-OPS; marine and solunar data are modeled from Open-Meteo and public sunrise/moon calculations and should be treated as a general guide alongside on-the-water conditions. Radar is provided by RainViewer. Satellite imagery is sourced from NOAA/NESDIS GOES-East and is public domain.
