Atacama Desert stargazing in May 2027

Over 300 clear nights a year. Tours often do not run near full moon.

Sat 1 May to Mon 31 May 2027

Best night: Wed 5 May 2027

Dark from 19:22 to 05:37 · 10.3 h without the moon · Milky Way core: 8.3 h

Night of	Moon	Dark hours	Moon-free	Milky Way core	Score
Sat 1 May	20%	10.3	7.8	5.5 h	96
Sun 2 May	12%	10.3	8.7	6.5 h	98
Mon 3 May	6%	10.3	9.7	7.5 h	100
Tue 4 May	2%	10.3	10.3	8.2 h	100
Wed 5 May	0%	10.3	10.3	8.3 h	100
Thu 6 May	1%	10.3	10.3	8.3 h	100
Fri 7 May	4%	10.3	10.3	8.3 h	100
Sat 8 May	9%	10.3	9.7	8.5 h	99
Sun 9 May	17%	10.3	8.5	8.5 h	97
Mon 10 May	27%	10.3	7.3	7.3 h	93
Tue 11 May	38%	10.5	6.5	6.5 h	88
Wed 12 May	50%	10.5	5.3	5.3 h	79
Thu 13 May	61%	10.5	4.3	4.3 h	69
Fri 14 May	72%	10.5	3.2	3.2 h	57
Sat 15 May	82%	10.5	2.3	2.3 h	46
Sun 16 May	89%	10.5	1.3	1.3 h	34
Mon 17 May	95%	10.5	0.3	moonlit only	22
Tue 18 May	98%	10.5	0.0	moonlit only	16
Wed 19 May	100%	10.5	0.0	moonlit only	15
Thu 20 May	99%	10.5	0.0	moonlit only	16
Fri 21 May	97%	10.5	0.0	moonlit only	18
Sat 22 May	92%	10.5	0.7	moonlit only	27
Sun 23 May	87%	10.5	1.5	0.5 h	37
Mon 24 May	80%	10.5	2.3	1.3 h	47
Tue 25 May	72%	10.5	3.3	2.5 h	58
Wed 26 May	63%	10.5	4.2	3.3 h	68
Thu 27 May	53%	10.7	5.0	4.3 h	76
Fri 28 May	44%	10.7	5.8	5.2 h	83
Sat 29 May	34%	10.7	6.7	6.0 h	89
Sun 30 May	25%	10.7	7.7	7.2 h	94
Mon 31 May	16%	10.7	8.5	8.0 h	97

Questions

The best nights are Wed 5 May, Thu 6 May, Fri 7 May, Tue 4 May, Mon 3 May, when the sky is fully dark and the moon is down for most of the night.

Yes, on 25 nights the galactic centre is above 10° during moon-free darkness, up to 8.5 hours a night.

Weather is not included. Times are local (America/Santiago).