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Manialtepec Lagoon in August 2027: darkest nights

Swimming in the glowing water is allowed from the boats. Best August to December.

14 pitch-dark nights, 16 dark nights

New moon Mon 2 Aug, Tue 31 Aug · Full moon Tue 17 Aug

Night by night, August 2027

NightMoon19:3021:00Best
Sun 1 Aug 0%●●●●●●●●●●21:00
Mon 2 Aug 1%●●●●●●●●●●21:00
Tue 3 Aug 5%●●●●●●●●●●21:00
Wed 4 Aug 11%●●●●●●●●●●21:00
Thu 5 Aug 19%●●●●●●●●●●21:00
Fri 6 Aug 29%●●●●●●●●●●21:00
Sat 7 Aug 39%●●●●●●●●●●21:00
Sun 8 Aug 50%●●●●●●●●●●21:00
Mon 9 Aug 60%●●●●●●●●●●21:00
Tue 10 Aug 70%●●●●●●●●●●21:00
Wed 11 Aug 79%●●●●●●●●●●21:00
Thu 12 Aug 86%●●●●●●●●●●21:00
Fri 13 Aug 92%●●●●●●●●●●21:00
Sat 14 Aug 96%●●●●●●●●●●21:00
Sun 15 Aug 99%●●●●●●●●●●19:30
Mon 16 Aug 100%●●●●●●●●●●19:30
Tue 17 Aug 99%●●●●●●●●●●19:30
Wed 18 Aug 97%●●●●●●●●●●19:30
Thu 19 Aug 92%●●●●●●●●●●19:30
Fri 20 Aug 86%●●●●●●●●●●19:30
Sat 21 Aug 78%●●●●●●●●●●19:30
Sun 22 Aug 69%●●●●●●●●●●21:00
Mon 23 Aug 58%●●●●●●●●●●21:00
Tue 24 Aug 47%●●●●●●●●●●21:00
Wed 25 Aug 36%●●●●●●●●●●21:00
Thu 26 Aug 25%●●●●●●●●●●21:00
Fri 27 Aug 16%●●●●●●●●●●21:00
Sat 28 Aug 8%●●●●●●●●●●21:00
Sun 29 Aug 3%●●●●●●●●●●21:00
Mon 30 Aug 0%●●●●●●●●●●21:00
Tue 31 Aug 1%●●●●●●●●●●21:00

Check one night in detail Manialtepec Lagoon tours

Questions

What are the best nights to see the bioluminescence at Manialtepec Lagoon in August 2027?

The darkest nights are Sun 1 Aug, Mon 2 Aug, Tue 3 Aug, Wed 4 Aug, Thu 5 Aug, Mon 23 Aug, Tue 24 Aug, Wed 25 Aug, Thu 26 Aug, Fri 27 Aug and more. 16 of 31 nights score at least 4 out of 5.

Which nights should I avoid in August 2027?

Avoid the nights around the full moon on Tue 17 Aug, when moonlight washes out the glow.

19:30 or 21:00: which Manialtepec Lagoon tour is darker in August?

19:30 is the darker choice on 2 nights; 21:00 is the darker choice on 17 nights.

Manialtepec Lagoon darkness by month

Darkness score 1-5 per tour slot from twilight and moonlight. Weather and plankton health are not included. Times are local (America/Mexico_City).