Moon tonight · Arecibo, Arecibo, Puerto Rico
Moon Phase Tonight in Arecibo, Arecibo, Puerto Rico
Tonight's Moon in Arecibo, Arecibo, Puerto Rico is a first quarter, 42% illuminated, rising Sun, Oct 18, 1:05 PM AST and setting Sat, Oct 17, 11:27 PM AST.
Live moon phase and illumination with local moonrise, moonset and transit times for Arecibo, Arecibo, Puerto Rico, plus how tonight's moonlight affects stargazing and aurora viewing.
🌕 Next Full Moon Alignment
Calculating…
Showing Arecibo, Arecibo, Puerto Rico — search another place:
First Quarter
42% illuminated · 7.2 days into the lunar cycle
Moonrise
Highest in sky
Moonset
Local time (America/Puerto Rico), next events after this page was generated. Calculated with astronomy-engine for 18.47°, -66.72°.
Local sky conditions
Loading live weather…
Moon impact on stargazing & aurora
At 42% 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 18.5° latitude generally needs about Kp 9.0.
Moon tonight in Arecibo: common questions
What is tonight's moon phase in Arecibo, Arecibo, Puerto Rico?
Tonight's Moon in Arecibo, Arecibo, Puerto Rico is a First Quarter, about 42% illuminated and 7.2 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 Arecibo, Arecibo, Puerto Rico tonight?
The next moonrise in Arecibo, Arecibo, Puerto Rico is Sun, Oct 18, 1:05 PM AST and the next moonset is Sat, Oct 17, 11:27 PM AST (local time, America/Puerto Rico). 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 Arecibo, Arecibo, Puerto Rico?
At 42% 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 Arecibo, Arecibo, Puerto Rico on the linked aurora and sky-tonight pages before heading out.