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Laguna Grande in March 2027: darkest nights

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

17 pitch-dark nights, 19 dark nights

New moon Mon 8 Mar · Full moon Mon 22 Mar

Night by night, March 2027

NightMoon18:3020:30Best
Mon 1 Mar 32%●●●●●●●●●●20:30
Tue 2 Mar 24%●●●●●●●●●●20:30
Wed 3 Mar 16%●●●●●●●●●●20:30
Thu 4 Mar 10%●●●●●●●●●●20:30
Fri 5 Mar 5%●●●●●●●●●●20:30
Sat 6 Mar 2%●●●●●●●●●●20:30
Sun 7 Mar 0%●●●●●●●●●●20:30
Mon 8 Mar 1%●●●●●●●●●●20:30
Tue 9 Mar 3%●●●●●●●●●●20:30
Wed 10 Mar 8%●●●●●●●●●●20:30
Thu 11 Mar 15%●●●●●●●●●●20:30
Fri 12 Mar 24%●●●●●●●●●●20:30
Sat 13 Mar 34%●●●●●●●●●●20:30
Sun 14 Mar 45%●●●●●●●●●●20:30
Mon 15 Mar 57%●●●●●●●●●●20:30
Tue 16 Mar 69%●●●●●●●●●●20:30
Wed 17 Mar 79%●●●●●●●●●●20:30
Thu 18 Mar 88%●●●●●●●●●●20:30
Fri 19 Mar 94%●●●●●●●●●●20:30
Sat 20 Mar 98%●●●●●●●●●●18:30
Sun 21 Mar 100%●●●●●●●●●●18:30
Mon 22 Mar 99%●●●●●●●●●●18:30
Tue 23 Mar 96%●●●●●●●●●●18:30
Wed 24 Mar 91%●●●●●●●●●●20:30
Thu 25 Mar 84%●●●●●●●●●●20:30
Fri 26 Mar 76%●●●●●●●●●●20:30
Sat 27 Mar 67%●●●●●●●●●●20:30
Sun 28 Mar 58%●●●●●●●●●●20:30
Mon 29 Mar 49%●●●●●●●●●●20:30
Tue 30 Mar 39%●●●●●●●●●●20:30
Wed 31 Mar 30%●●●●●●●●●●20:30

Check one night in detail Laguna Grande tours

Questions

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

The darkest nights are Mon 1 Mar, Tue 2 Mar, Wed 3 Mar, Thu 4 Mar, Fri 5 Mar, Sat 6 Mar, Sun 7 Mar, Mon 8 Mar, Tue 9 Mar, Wed 10 Mar and more. 19 of 31 nights score at least 4 out of 5.

Which nights should I avoid in March 2027?

Avoid the nights around the full moon on Mon 22 Mar, when moonlight washes out the glow.

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

18:30 is the darker choice on 0 nights; 20:30 is the darker choice on 21 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).