Toyama Bay firefly squid in June 2027: darkest nights
Firefly squid (hotaru-ika) glow as fishermen haul nets before dawn. Sightseeing boats leave around 3 am. March to May only.
0 pitch-dark nights, 0 dark nights
New moon Sat 5 Jun · Full moon Sat 19 Jun
Night by night, June 2027
| Night | Moon | 03:00 | Best |
|---|---|---|---|
| Tue 1 Jun | 13% | ●●●●● | 03:00 |
| Wed 2 Jun | 6% | ●●●●● | 03:00 |
| Thu 3 Jun | 2% | ●●●●● | 03:00 |
| Fri 4 Jun | 0% | ●●●●● | 03:00 |
| Sat 5 Jun | 1% | ●●●●● | 03:00 |
| Sun 6 Jun | 4% | ●●●●● | 03:00 |
| Mon 7 Jun | 10% | ●●●●● | 03:00 |
| Tue 8 Jun | 19% | ●●●●● | 03:00 |
| Wed 9 Jun | 29% | ●●●●● | 03:00 |
| Thu 10 Jun | 40% | ●●●●● | 03:00 |
| Fri 11 Jun | 51% | ●●●●● | 03:00 |
| Sat 12 Jun | 63% | ●●●●● | 03:00 |
| Sun 13 Jun | 73% | ●●●●● | 03:00 |
| Mon 14 Jun | 82% | ●●●●● | 03:00 |
| Tue 15 Jun | 89% | ●●●●● | 03:00 |
| Wed 16 Jun | 95% | ●●●●● | 03:00 |
| Thu 17 Jun | 98% | ●●●●● | 03:00 |
| Fri 18 Jun | 100% | ●●●●● | 03:00 |
| Sat 19 Jun | 99% | ●●●●● | 03:00 |
| Sun 20 Jun | 97% | ●●●●● | 03:00 |
| Mon 21 Jun | 94% | ●●●●● | 03:00 |
| Tue 22 Jun | 88% | ●●●●● | 03:00 |
| Wed 23 Jun | 81% | ●●●●● | 03:00 |
| Thu 24 Jun | 74% | ●●●●● | 03:00 |
| Fri 25 Jun | 65% | ●●●●● | 03:00 |
| Sat 26 Jun | 55% | ●●●●● | 03:00 |
| Sun 27 Jun | 45% | ●●●●● | 03:00 |
| Mon 28 Jun | 34% | ●●●●● | 03:00 |
| Tue 29 Jun | 25% | ●●●●● | 03:00 |
| Wed 30 Jun | 16% | ●●●●● | 03:00 |
Check one night in detail Toyama Bay firefly squid tours
Questions
What are the best nights to see the bioluminescence at Toyama Bay firefly squid in June 2027?
0 of 30 nights score at least 4 out of 5 for darkness.
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.
Toyama Bay firefly squid 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/Tokyo).