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Koh Rong plankton in June 2027: darkest nights

Swim off Long Set Beach or from night boat trips on Koh Rong Samloem. Year-round; best in the dry season.

16 pitch-dark nights, 18 dark nights

New moon Sat 5 Jun · Full moon Sat 19 Jun

Night by night, June 2027

NightMoon20:0022:00Best
Tue 1 Jun 12%●●●●●●●●●●20:00
Wed 2 Jun 6%●●●●●●●●●●20:00
Thu 3 Jun 2%●●●●●●●●●●20:00
Fri 4 Jun 0%●●●●●●●●●●20:00
Sat 5 Jun 1%●●●●●●●●●●20:00
Sun 6 Jun 5%●●●●●●●●●●22:00
Mon 7 Jun 11%●●●●●●●●●●22:00
Tue 8 Jun 19%●●●●●●●●●●22:00
Wed 9 Jun 29%●●●●●●●●●●22:00
Thu 10 Jun 41%●●●●●●●●●●22:00
Fri 11 Jun 52%●●●●●●●●●●22:00
Sat 12 Jun 63%●●●●●●●●●●22:00
Sun 13 Jun 74%●●●●●●●●●●22:00
Mon 14 Jun 82%●●●●●●●●●●20:00
Tue 15 Jun 90%●●●●●●●●●●20:00
Wed 16 Jun 95%●●●●●●●●●●20:00
Thu 17 Jun 98%●●●●●●●●●●20:00
Fri 18 Jun 100%●●●●●●●●●●20:00
Sat 19 Jun 99%●●●●●●●●●●20:00
Sun 20 Jun 97%●●●●●●●●●●20:00
Mon 21 Jun 93%●●●●●●●●●●20:00
Tue 22 Jun 88%●●●●●●●●●●20:00
Wed 23 Jun 81%●●●●●●●●●●20:00
Thu 24 Jun 73%●●●●●●●●●●20:00
Fri 25 Jun 64%●●●●●●●●●●20:00
Sat 26 Jun 54%●●●●●●●●●●20:00
Sun 27 Jun 44%●●●●●●●●●●20:00
Mon 28 Jun 34%●●●●●●●●●●20:00
Tue 29 Jun 24%●●●●●●●●●●20:00
Wed 30 Jun 15%●●●●●●●●●●20:00

Check one night in detail Koh Rong plankton tours

Questions

What are the best nights to see the bioluminescence at Koh Rong plankton 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, Mon 7 Jun, Tue 8 Jun, Wed 23 Jun, Thu 24 Jun and more. 18 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 Sat 19 Jun, when moonlight washes out the glow.

20:00 or 22:00: which Koh Rong plankton tour is darker in June?

20:00 is the darker choice on 15 nights; 22:00 is the darker choice on 5 nights.

Koh Rong plankton darkness by month

Darkness score 1-5 per tour slot from twilight and moonlight. Weather and plankton health are not included. Times are local (Asia/Phnom_Penh).