Toyama Bay firefly squid in February 2027: darkest nights
Firefly squid (hotaru-ika) glow as fishermen haul nets before dawn. Sightseeing boats leave around 3 am. March to May only.
15 pitch-dark nights, 16 dark nights
New moon Sun 7 Feb · Full moon Sun 21 Feb
Night by night, February 2027
| Night | Moon | 03:00 | Best |
|---|---|---|---|
| Mon 1 Feb | 21% | ●●●●● | 03:00 |
| Tue 2 Feb | 14% | ●●●●● | 03:00 |
| Wed 3 Feb | 8% | ●●●●● | 03:00 |
| Thu 4 Feb | 4% | ●●●●● | 03:00 |
| Fri 5 Feb | 1% | ●●●●● | 03:00 |
| Sat 6 Feb | 0% | ●●●●● | 03:00 |
| Sun 7 Feb | 1% | ●●●●● | 03:00 |
| Mon 8 Feb | 4% | ●●●●● | 03:00 |
| Tue 9 Feb | 8% | ●●●●● | 03:00 |
| Wed 10 Feb | 15% | ●●●●● | 03:00 |
| Thu 11 Feb | 23% | ●●●●● | 03:00 |
| Fri 12 Feb | 33% | ●●●●● | 03:00 |
| Sat 13 Feb | 44% | ●●●●● | 03:00 |
| Sun 14 Feb | 55% | ●●●●● | 03:00 |
| Mon 15 Feb | 67% | ●●●●● | 03:00 |
| Tue 16 Feb | 77% | ●●●●● | 03:00 |
| Wed 17 Feb | 86% | ●●●●● | 03:00 |
| Thu 18 Feb | 93% | ●●●●● | 03:00 |
| Fri 19 Feb | 98% | ●●●●● | 03:00 |
| Sat 20 Feb | 100% | ●●●●● | 03:00 |
| Sun 21 Feb | 99% | ●●●●● | 03:00 |
| Mon 22 Feb | 96% | ●●●●● | 03:00 |
| Tue 23 Feb | 91% | ●●●●● | 03:00 |
| Wed 24 Feb | 83% | ●●●●● | 03:00 |
| Thu 25 Feb | 75% | ●●●●● | 03:00 |
| Fri 26 Feb | 66% | ●●●●● | 03:00 |
| Sat 27 Feb | 56% | ●●●●● | 03:00 |
| Sun 28 Feb | 46% | ●●●●● | 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 February 2027?
The darkest nights are Mon 1 Feb, Tue 2 Feb, Wed 3 Feb, Thu 4 Feb, Fri 5 Feb, Sat 6 Feb, Sun 7 Feb, Mon 8 Feb, Tue 9 Feb, Wed 10 Feb and more. 16 of 28 nights score at least 4 out of 5.
Which nights should I avoid in February 2027?
Avoid the nights around the full moon on Sun 21 Feb, 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).