Holbox bioluminescence in October 2027: darkest nights
Plankton glows along the lagoon shore and Punta Cocos. Very sensitive to moonlight. Best June to October, warm water.
17 pitch-dark nights, 18 dark nights
New moon Fri 29 Oct · Full moon Fri 15 Oct
Night by night, October 2027
| Night | Moon | 20:00 | 22:00 | Best |
|---|---|---|---|---|
| Fri 1 Oct | 6% | ●●●●● | ●●●●● | 20:00 |
| Sat 2 Oct | 12% | ●●●●● | ●●●●● | 22:00 |
| Sun 3 Oct | 20% | ●●●●● | ●●●●● | 22:00 |
| Mon 4 Oct | 28% | ●●●●● | ●●●●● | 22:00 |
| Tue 5 Oct | 38% | ●●●●● | ●●●●● | 22:00 |
| Wed 6 Oct | 47% | ●●●●● | ●●●●● | 22:00 |
| Thu 7 Oct | 57% | ●●●●● | ●●●●● | 22:00 |
| Fri 8 Oct | 66% | ●●●●● | ●●●●● | 22:00 |
| Sat 9 Oct | 75% | ●●●●● | ●●●●● | 20:00 |
| Sun 10 Oct | 82% | ●●●●● | ●●●●● | 20:00 |
| Mon 11 Oct | 89% | ●●●●● | ●●●●● | 20:00 |
| Tue 12 Oct | 94% | ●●●●● | ●●●●● | 20:00 |
| Wed 13 Oct | 98% | ●●●●● | ●●●●● | 20:00 |
| Thu 14 Oct | 100% | ●●●●● | ●●●●● | 20:00 |
| Fri 15 Oct | 99% | ●●●●● | ●●●●● | 20:00 |
| Sat 16 Oct | 97% | ●●●●● | ●●●●● | 20:00 |
| Sun 17 Oct | 93% | ●●●●● | ●●●●● | 20:00 |
| Mon 18 Oct | 86% | ●●●●● | ●●●●● | 20:00 |
| Tue 19 Oct | 77% | ●●●●● | ●●●●● | 20:00 |
| Wed 20 Oct | 67% | ●●●●● | ●●●●● | 20:00 |
| Thu 21 Oct | 56% | ●●●●● | ●●●●● | 20:00 |
| Fri 22 Oct | 44% | ●●●●● | ●●●●● | 20:00 |
| Sat 23 Oct | 32% | ●●●●● | ●●●●● | 20:00 |
| Sun 24 Oct | 22% | ●●●●● | ●●●●● | 20:00 |
| Mon 25 Oct | 13% | ●●●●● | ●●●●● | 20:00 |
| Tue 26 Oct | 6% | ●●●●● | ●●●●● | 20:00 |
| Wed 27 Oct | 2% | ●●●●● | ●●●●● | 20:00 |
| Thu 28 Oct | 0% | ●●●●● | ●●●●● | 20:00 |
| Fri 29 Oct | 1% | ●●●●● | ●●●●● | 20:00 |
| Sat 30 Oct | 4% | ●●●●● | ●●●●● | 20:00 |
| Sun 31 Oct | 9% | ●●●●● | ●●●●● | 20:00 |
Check one night in detail Holbox bioluminescence tours
Questions
What are the best nights to see the bioluminescence at Holbox bioluminescence in October 2027?
The darkest nights are Fri 1 Oct, Sat 2 Oct, Sun 3 Oct, Mon 4 Oct, Tue 19 Oct, Wed 20 Oct, Thu 21 Oct, Fri 22 Oct, Sat 23 Oct, Sun 24 Oct and more. 18 of 31 nights score at least 4 out of 5.
Which nights should I avoid in October 2027?
Avoid the nights around the full moon on Fri 15 Oct, when moonlight washes out the glow.
20:00 or 22:00: which Holbox bioluminescence tour is darker in October?
20:00 is the darker choice on 15 nights; 22:00 is the darker choice on 5 nights.
Holbox bioluminescence 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/Cancun).