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Laguna Grande in April 2027: darkest nights

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

16 pitch-dark nights, 18 dark nights

New moon Tue 6 Apr · Full moon Tue 20 Apr

Night by night, April 2027

NightMoon18:3020:30Best
Thu 1 Apr 22%●●●●●●●●●●20:30
Fri 2 Apr 15%●●●●●●●●●●20:30
Sat 3 Apr 9%●●●●●●●●●●20:30
Sun 4 Apr 4%●●●●●●●●●●20:30
Mon 5 Apr 1%●●●●●●●●●●20:30
Tue 6 Apr 0%●●●●●●●●●●20:30
Wed 7 Apr 2%●●●●●●●●●●20:30
Thu 8 Apr 5%●●●●●●●●●●20:30
Fri 9 Apr 11%●●●●●●●●●●20:30
Sat 10 Apr 20%●●●●●●●●●●20:30
Sun 11 Apr 30%●●●●●●●●●●20:30
Mon 12 Apr 41%●●●●●●●●●●20:30
Tue 13 Apr 53%●●●●●●●●●●20:30
Wed 14 Apr 64%●●●●●●●●●●20:30
Thu 15 Apr 75%●●●●●●●●●●20:30
Fri 16 Apr 85%●●●●●●●●●●20:30
Sat 17 Apr 92%●●●●●●●●●●20:30
Sun 18 Apr 97%●●●●●●●●●●20:30
Mon 19 Apr 99%●●●●●●●●●●18:30
Tue 20 Apr 100%●●●●●●●●●●18:30
Wed 21 Apr 98%●●●●●●●●●●20:30
Thu 22 Apr 94%●●●●●●●●●●20:30
Fri 23 Apr 89%●●●●●●●●●●20:30
Sat 24 Apr 82%●●●●●●●●●●20:30
Sun 25 Apr 74%●●●●●●●●●●20:30
Mon 26 Apr 66%●●●●●●●●●●20:30
Tue 27 Apr 56%●●●●●●●●●●20:30
Wed 28 Apr 47%●●●●●●●●●●20:30
Thu 29 Apr 38%●●●●●●●●●●20:30
Fri 30 Apr 28%●●●●●●●●●●20:30

Check one night in detail Laguna Grande tours

Questions

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

The darkest nights are Thu 1 Apr, Fri 2 Apr, Sat 3 Apr, Sun 4 Apr, Mon 5 Apr, Tue 6 Apr, Wed 7 Apr, Thu 8 Apr, Fri 9 Apr, Sat 24 Apr and more. 18 of 30 nights score at least 4 out of 5.

Which nights should I avoid in April 2027?

Avoid the nights around the full moon on Tue 20 Apr, when moonlight washes out the glow.

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

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).