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Laguna Grande in November 2026: darkest nights

Reached by kayak through a mangrove channel. The easiest bio bay to reach from San Juan. Year-round.

16 pitch-dark nights, 17 dark nights

New moon Mon 9 Nov · Full moon Tue 24 Nov

Night by night, November 2026

NightMoon18:3020:30Best
Sun 1 Nov 48%●●●●●●●●●●20:30
Mon 2 Nov 36%●●●●●●●●●●20:30
Tue 3 Nov 26%●●●●●●●●●●20:30
Wed 4 Nov 17%●●●●●●●●●●20:30
Thu 5 Nov 10%●●●●●●●●●●20:30
Fri 6 Nov 4%●●●●●●●●●●20:30
Sat 7 Nov 1%●●●●●●●●●●20:30
Sun 8 Nov 0%●●●●●●●●●●20:30
Mon 9 Nov 1%●●●●●●●●●●20:30
Tue 10 Nov 4%●●●●●●●●●●20:30
Wed 11 Nov 8%●●●●●●●●●●20:30
Thu 12 Nov 14%●●●●●●●●●●20:30
Fri 13 Nov 21%●●●●●●●●●●20:30
Sat 14 Nov 29%●●●●●●●●●●20:30
Sun 15 Nov 38%●●●●●●●●●●20:30
Mon 16 Nov 48%●●●●●●●●●●20:30
Tue 17 Nov 57%●●●●●●●●●●20:30
Wed 18 Nov 67%●●●●●●●●●●20:30
Thu 19 Nov 77%●●●●●●●●●●20:30
Fri 20 Nov 85%●●●●●●●●●●20:30
Sat 21 Nov 92%●●●●●●●●●●20:30
Sun 22 Nov 97%●●●●●●●●●●20:30
Mon 23 Nov 99%●●●●●●●●●●18:30
Tue 24 Nov 100%●●●●●●●●●●18:30
Wed 25 Nov 97%●●●●●●●●●●18:30
Thu 26 Nov 92%●●●●●●●●●●18:30
Fri 27 Nov 84%●●●●●●●●●●18:30
Sat 28 Nov 75%●●●●●●●●●●20:30
Sun 29 Nov 64%●●●●●●●●●●20:30
Mon 30 Nov 53%●●●●●●●●●●20:30

Check one night in detail Laguna Grande tours

Questions

What are the best nights to see the bioluminescence at Laguna Grande 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. 17 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.

18:30 or 20:30: which Laguna Grande tour is darker in November?

18:30 is the darker choice on 2 nights; 20:30 is the darker choice on 18 nights.

Laguna Grande 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).