San Jose, California, United States
Is Tonight Good for Stargazing in San Jose, California, United States?
Good conditions tonight in San Jose, California, United States — 0% cloud cover — at or below the 20% threshold amateur-astronomy forecasting tools treat as effectively clear. 28% moon illumination — a crescent-to-quarter moon, manageable for most targets.
0% cloud cover — at or below the 20% threshold amateur-astronomy forecasting tools treat as effectively clear.
28% moon illumination — a crescent-to-quarter moon, manageable for most targets.
22.4 mi visibility — at or above the ~6mi threshold for excellent atmospheric transparency.
1% chance of precipitation — below NWS's "slight chance" threshold (<30%).
| Day | Cloud cover | Rain chance |
|---|---|---|
| Mon | 2% | 1% |
| Tue | 0% | 0% |
| Wed | 0% | 0% |
| Thu | 0% | 0% |
| Fri | 0% | 0% |
| Sat | 20% | 1% |
| Sun | 3% | 3% |
Cloud cover, atmospheric visibility, and moon illumination are sourced from live forecast data; thresholds follow standard amateur-astronomy planning guidance (cloud-cover bands used by tools like Clear Outside/Astrospheric, moonlight bands from astronomy-outreach guidance). Light pollution from nearby cities isn't factored in.
Is tonight good for stargazing in San Jose, California, United States?
Good stargazing conditions tonight in San Jose, California, United States — 0% cloud cover — at or below the 20% threshold amateur-astronomy forecasting tools treat as effectively clear. 28% moon illumination — a crescent-to-quarter moon, manageable for most targets.
What is the moon phase in San Jose, California, United States tonight?
The moon is currently in its waning crescent phase, 28% illuminated.