Toyama Bay firefly squid in March 2027: darkest nights
Firefly squid (hotaru-ika) glow as fishermen haul nets before dawn. Sightseeing boats leave around 3 am. March to May only.
14 pitch-dark nights, 16 dark nights
New moon Mon 8 Mar · Full moon Mon 22 Mar
Night by night, March 2027
| Night | Moon | 03:00 | Best |
|---|---|---|---|
| Mon 1 Mar | 37% | ●●●●● | 03:00 |
| Tue 2 Mar | 28% | ●●●●● | 03:00 |
| Wed 3 Mar | 20% | ●●●●● | 03:00 |
| Thu 4 Mar | 13% | ●●●●● | 03:00 |
| Fri 5 Mar | 7% | ●●●●● | 03:00 |
| Sat 6 Mar | 3% | ●●●●● | 03:00 |
| Sun 7 Mar | 1% | ●●●●● | 03:00 |
| Mon 8 Mar | 0% | ●●●●● | 03:00 |
| Tue 9 Mar | 2% | ●●●●● | 03:00 |
| Wed 10 Mar | 5% | ●●●●● | 03:00 |
| Thu 11 Mar | 11% | ●●●●● | 03:00 |
| Fri 12 Mar | 19% | ●●●●● | 03:00 |
| Sat 13 Mar | 28% | ●●●●● | 03:00 |
| Sun 14 Mar | 39% | ●●●●● | 03:00 |
| Mon 15 Mar | 51% | ●●●●● | 03:00 |
| Tue 16 Mar | 62% | ●●●●● | 03:00 |
| Wed 17 Mar | 73% | ●●●●● | 03:00 |
| Thu 18 Mar | 83% | ●●●●● | 03:00 |
| Fri 19 Mar | 91% | ●●●●● | 03:00 |
| Sat 20 Mar | 96% | ●●●●● | 03:00 |
| Sun 21 Mar | 99% | ●●●●● | 03:00 |
| Mon 22 Mar | 100% | ●●●●● | 03:00 |
| Tue 23 Mar | 98% | ●●●●● | 03:00 |
| Wed 24 Mar | 94% | ●●●●● | 03:00 |
| Thu 25 Mar | 88% | ●●●●● | 03:00 |
| Fri 26 Mar | 80% | ●●●●● | 03:00 |
| Sat 27 Mar | 72% | ●●●●● | 03:00 |
| Sun 28 Mar | 63% | ●●●●● | 03:00 |
| Mon 29 Mar | 54% | ●●●●● | 03:00 |
| Tue 30 Mar | 44% | ●●●●● | 03:00 |
| Wed 31 Mar | 35% | ●●●●● | 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 March 2027?
The darkest nights are Wed 3 Mar, Thu 4 Mar, Fri 5 Mar, Sat 6 Mar, Sun 7 Mar, Mon 8 Mar, Tue 9 Mar, Wed 10 Mar, Thu 11 Mar, Fri 12 Mar and more. 16 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.
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).