Mosquito Bay in November 2026: darkest nights
Guinness-listed as the brightest bioluminescent bay in the world. Swimming is banned; tours use clear-bottom kayaks or electric boats. Year-round. Brightest after a few dry, calm nights.
17 pitch-dark nights, 18 dark nights
New moon Mon 9 Nov · Full moon Tue 24 Nov
Night by night, November 2026
| Night | Moon | 19:00 | 21:00 | Best |
|---|---|---|---|---|
| Sun 1 Nov | 48% | ●●●●● | ●●●●● | 21:00 |
| Mon 2 Nov | 36% | ●●●●● | ●●●●● | 21:00 |
| Tue 3 Nov | 26% | ●●●●● | ●●●●● | 21:00 |
| Wed 4 Nov | 17% | ●●●●● | ●●●●● | 21:00 |
| Thu 5 Nov | 10% | ●●●●● | ●●●●● | 21:00 |
| Fri 6 Nov | 4% | ●●●●● | ●●●●● | 21:00 |
| Sat 7 Nov | 1% | ●●●●● | ●●●●● | 21:00 |
| Sun 8 Nov | 0% | ●●●●● | ●●●●● | 21:00 |
| Mon 9 Nov | 1% | ●●●●● | ●●●●● | 21:00 |
| Tue 10 Nov | 4% | ●●●●● | ●●●●● | 21:00 |
| Wed 11 Nov | 8% | ●●●●● | ●●●●● | 21:00 |
| Thu 12 Nov | 14% | ●●●●● | ●●●●● | 21:00 |
| Fri 13 Nov | 21% | ●●●●● | ●●●●● | 21:00 |
| Sat 14 Nov | 29% | ●●●●● | ●●●●● | 21:00 |
| Sun 15 Nov | 38% | ●●●●● | ●●●●● | 21:00 |
| Mon 16 Nov | 48% | ●●●●● | ●●●●● | 21:00 |
| Tue 17 Nov | 57% | ●●●●● | ●●●●● | 21:00 |
| Wed 18 Nov | 67% | ●●●●● | ●●●●● | 21:00 |
| Thu 19 Nov | 77% | ●●●●● | ●●●●● | 21:00 |
| Fri 20 Nov | 85% | ●●●●● | ●●●●● | 21:00 |
| Sat 21 Nov | 92% | ●●●●● | ●●●●● | 21:00 |
| Sun 22 Nov | 97% | ●●●●● | ●●●●● | 21:00 |
| Mon 23 Nov | 99% | ●●●●● | ●●●●● | 19:00 |
| Tue 24 Nov | 100% | ●●●●● | ●●●●● | 19:00 |
| Wed 25 Nov | 97% | ●●●●● | ●●●●● | 19:00 |
| Thu 26 Nov | 92% | ●●●●● | ●●●●● | 19:00 |
| Fri 27 Nov | 84% | ●●●●● | ●●●●● | 19:00 |
| Sat 28 Nov | 75% | ●●●●● | ●●●●● | 19:00 |
| Sun 29 Nov | 64% | ●●●●● | ●●●●● | 21:00 |
| Mon 30 Nov | 53% | ●●●●● | ●●●●● | 21:00 |
Check one night in detail Mosquito Bay tours
Questions
What are the best nights to see the bioluminescence at Mosquito Bay in November 2026?
The darkest nights are Sun 1 Nov, Mon 2 Nov, Tue 3 Nov, Wed 4 Nov, Thu 5 Nov, Fri 6 Nov, Sat 7 Nov, Sun 8 Nov, Mon 9 Nov, Tue 10 Nov and more. 18 of 30 nights score at least 4 out of 5.
Which nights should I avoid in November 2026?
Avoid the nights around the full moon on Tue 24 Nov, when moonlight washes out the glow.
19:00 or 21:00: which Mosquito Bay tour is darker in November?
19:00 is the darker choice on 3 nights; 21:00 is the darker choice on 17 nights.
Mosquito Bay 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/Puerto_Rico).