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Laguna Grande in August 2027: darkest nights

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

15 pitch-dark nights, 16 dark nights

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

Night by night, August 2027

NightMoon18:3020:30Best
Sun 1 Aug 0%●●●●●●●●●●20:30
Mon 2 Aug 1%●●●●●●●●●●20:30
Tue 3 Aug 4%●●●●●●●●●●20:30
Wed 4 Aug 10%●●●●●●●●●●20:30
Thu 5 Aug 18%●●●●●●●●●●20:30
Fri 6 Aug 28%●●●●●●●●●●20:30
Sat 7 Aug 38%●●●●●●●●●●20:30
Sun 8 Aug 49%●●●●●●●●●●20:30
Mon 9 Aug 59%●●●●●●●●●●20:30
Tue 10 Aug 69%●●●●●●●●●●20:30
Wed 11 Aug 78%●●●●●●●●●●20:30
Thu 12 Aug 85%●●●●●●●●●●20:30
Fri 13 Aug 91%●●●●●●●●●●20:30
Sat 14 Aug 96%●●●●●●●●●●20:30
Sun 15 Aug 99%●●●●●●●●●●18:30
Mon 16 Aug 100%●●●●●●●●●●18:30
Tue 17 Aug 99%●●●●●●●●●●18:30
Wed 18 Aug 97%●●●●●●●●●●20:30
Thu 19 Aug 93%●●●●●●●●●●20:30
Fri 20 Aug 87%●●●●●●●●●●20:30
Sat 21 Aug 79%●●●●●●●●●●20:30
Sun 22 Aug 70%●●●●●●●●●●20:30
Mon 23 Aug 59%●●●●●●●●●●20:30
Tue 24 Aug 48%●●●●●●●●●●20:30
Wed 25 Aug 37%●●●●●●●●●●20:30
Thu 26 Aug 26%●●●●●●●●●●20:30
Fri 27 Aug 17%●●●●●●●●●●20:30
Sat 28 Aug 9%●●●●●●●●●●20:30
Sun 29 Aug 3%●●●●●●●●●●20:30
Mon 30 Aug 0%●●●●●●●●●●20:30
Tue 31 Aug 0%●●●●●●●●●●20:30

Check one night in detail Laguna Grande tours

Questions

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

The darkest nights are Sun 1 Aug, Mon 2 Aug, Tue 3 Aug, Wed 4 Aug, Thu 5 Aug, Sun 22 Aug, Mon 23 Aug, Tue 24 Aug, Wed 25 Aug, Thu 26 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.

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

18:30 is the darker choice on 0 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).