Moon tonight · San Antonio, TX
Moon Phase Tonight in San Antonio, TX
Tonight's Moon in San Antonio, TX is a first quarter, 44% illuminated, rising Sun, Oct 18, 2:40 PM CDT and setting Sun, Oct 18, 12:13 AM CDT.
Live moon phase and illumination with local moonrise, moonset and transit times for San Antonio, TX, plus how tonight's moonlight affects stargazing and aurora viewing.
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First Quarter
44% illuminated · 7.3 days into the lunar cycle
Moonrise
Highest in sky
Moonset
Local time (America/Chicago), next events after this page was generated. Calculated with astronomy-engine for 29.42°, -98.49°.
Local sky conditions
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Moon impact on stargazing & aurora
At 44% illumination moonlight is moderate: a strong aurora still shows, but faint activity and dim nebulae are washed out while the Moon is up.
Aurora at 29.4° latitude generally needs about Kp 9.0.
Moon tonight in San Antonio: common questions
What is tonight's moon phase in San Antonio, TX?
Tonight's Moon in San Antonio, TX is a First Quarter, about 44% illuminated and 7.3 days into the lunar cycle, calculated for 2026-10-17 (UTC). The phase is the same worldwide; its tilt and the times it is above the horizon depend on your location.
What time is moonrise and moonset in San Antonio, TX tonight?
The next moonrise in San Antonio, TX is Sun, Oct 18, 2:40 PM CDT and the next moonset is Sun, Oct 18, 12:13 AM CDT (local time, America/Chicago). Times are calculated from the city's coordinates with the astronomy-engine library and refer to the geometric rise and set of the Moon's upper limb.
How does tonight's moonlight affect stargazing and aurora viewing in San Antonio, TX?
At 44% illumination moonlight is moderate: a strong aurora still shows, but faint activity and dim nebulae are washed out while the Moon is up. Check clear-sky and aurora conditions for San Antonio, TX on the linked aurora and sky-tonight pages before heading out.