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Laguna Grande in June 2027: darkest nights

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

14 pitch-dark nights, 17 dark nights

New moon Fri 4 Jun · Full moon Fri 18 Jun

Night by night, June 2027

NightMoon18:3020:30Best
Tue 1 Jun 9%●●●●●●●●●●20:30
Wed 2 Jun 4%●●●●●●●●●●20:30
Thu 3 Jun 1%●●●●●●●●●●20:30
Fri 4 Jun 0%●●●●●●●●●●20:30
Sat 5 Jun 2%●●●●●●●●●●20:30
Sun 6 Jun 7%●●●●●●●●●●20:30
Mon 7 Jun 15%●●●●●●●●●●20:30
Tue 8 Jun 24%●●●●●●●●●●20:30
Wed 9 Jun 35%●●●●●●●●●●20:30
Thu 10 Jun 46%●●●●●●●●●●20:30
Fri 11 Jun 58%●●●●●●●●●●20:30
Sat 12 Jun 68%●●●●●●●●●●20:30
Sun 13 Jun 78%●●●●●●●●●●20:30
Mon 14 Jun 86%●●●●●●●●●●20:30
Tue 15 Jun 92%●●●●●●●●●●20:30
Wed 16 Jun 97%●●●●●●●●●●20:30
Thu 17 Jun 99%●●●●●●●●●●18:30
Fri 18 Jun 100%●●●●●●●●●●20:30
Sat 19 Jun 99%●●●●●●●●●●20:30
Sun 20 Jun 96%●●●●●●●●●●20:30
Mon 21 Jun 91%●●●●●●●●●●20:30
Tue 22 Jun 85%●●●●●●●●●●20:30
Wed 23 Jun 77%●●●●●●●●●●20:30
Thu 24 Jun 69%●●●●●●●●●●20:30
Fri 25 Jun 59%●●●●●●●●●●20:30
Sat 26 Jun 49%●●●●●●●●●●20:30
Sun 27 Jun 39%●●●●●●●●●●20:30
Mon 28 Jun 29%●●●●●●●●●●20:30
Tue 29 Jun 20%●●●●●●●●●●20:30
Wed 30 Jun 12%●●●●●●●●●●20:30

Check one night in detail Laguna Grande tours

Questions

What are the best nights to see the bioluminescence at Laguna Grande in June 2027?

The darkest nights are Tue 1 Jun, Wed 2 Jun, Thu 3 Jun, Fri 4 Jun, Sat 5 Jun, Sun 6 Jun, Wed 23 Jun, Thu 24 Jun, Fri 25 Jun, Sat 26 Jun and more. 17 of 30 nights score at least 4 out of 5.

Which nights should I avoid in June 2027?

Avoid the nights around the full moon on Fri 18 Jun, when moonlight washes out the glow.

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

18:30 is the darker choice on 0 nights; 20:30 is the darker choice on 19 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).