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Jervis Bay in January 2027: darkest nights

Noctiluca blooms turn Hyams Beach and Callala Bay electric blue. Blooms are short-lived. Sporadic blooms, mostly late spring and summer.

15 pitch-dark nights, 18 dark nights

New moon Fri 8 Jan · Full moon Fri 22 Jan

Night by night, January 2027

NightMoon21:0023:00Best
Fri 1 Jan 33%●●●●●●●●●●23:00
Sat 2 Jan 24%●●●●●●●●●●23:00
Sun 3 Jan 16%●●●●●●●●●●23:00
Mon 4 Jan 10%●●●●●●●●●●23:00
Tue 5 Jan 5%●●●●●●●●●●23:00
Wed 6 Jan 2%●●●●●●●●●●23:00
Thu 7 Jan 0%●●●●●●●●●●23:00
Fri 8 Jan 0%●●●●●●●●●●23:00
Sat 9 Jan 2%●●●●●●●●●●23:00
Sun 10 Jan 6%●●●●●●●●●●23:00
Mon 11 Jan 12%●●●●●●●●●●23:00
Tue 12 Jan 19%●●●●●●●●●●23:00
Wed 13 Jan 28%●●●●●●●●●●23:00
Thu 14 Jan 38%●●●●●●●●●●23:00
Fri 15 Jan 48%●●●●●●●●●●23:00
Sat 16 Jan 59%●●●●●●●●●●23:00
Sun 17 Jan 70%●●●●●●●●●●23:00
Mon 18 Jan 80%●●●●●●●●●●23:00
Tue 19 Jan 88%●●●●●●●●●●23:00
Wed 20 Jan 95%●●●●●●●●●●23:00
Thu 21 Jan 99%●●●●●●●●●●21:00
Fri 22 Jan 100%●●●●●●●●●●21:00
Sat 23 Jan 98%●●●●●●●●●●21:00
Sun 24 Jan 94%●●●●●●●●●●21:00
Mon 25 Jan 88%●●●●●●●●●●21:00
Tue 26 Jan 80%●●●●●●●●●●21:00
Wed 27 Jan 70%●●●●●●●●●●21:00
Thu 28 Jan 60%●●●●●●●●●●21:00
Fri 29 Jan 50%●●●●●●●●●●23:00
Sat 30 Jan 40%●●●●●●●●●●23:00
Sun 31 Jan 31%●●●●●●●●●●23:00

Check one night in detail Jervis Bay tours

Questions

What are the best nights to see the bioluminescence at Jervis Bay in January 2027?

The darkest nights are Fri 1 Jan, Sat 2 Jan, Sun 3 Jan, Mon 4 Jan, Tue 5 Jan, Wed 6 Jan, Thu 7 Jan, Fri 8 Jan, Sat 9 Jan, Sun 10 Jan and more. 18 of 31 nights score at least 4 out of 5.

Which nights should I avoid in January 2027?

Avoid the nights around the full moon on Fri 22 Jan, when moonlight washes out the glow.

21:00 or 23:00: which Jervis Bay tour is darker in January?

21:00 is the darker choice on 3 nights; 23:00 is the darker choice on 19 nights.

Jervis Bay darkness by month

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