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Jervis Bay in October 2027: darkest nights

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

17 pitch-dark nights, 19 dark nights

New moon Sat 30 Oct · Full moon Sat 16 Oct

Night by night, October 2027

NightMoon21:0023:00Best
Fri 1 Oct 3%●●●●●●●●●●21:00
Sat 2 Oct 8%●●●●●●●●●●21:00
Sun 3 Oct 14%●●●●●●●●●●23:00
Mon 4 Oct 22%●●●●●●●●●●23:00
Tue 5 Oct 31%●●●●●●●●●●23:00
Wed 6 Oct 41%●●●●●●●●●●23:00
Thu 7 Oct 50%●●●●●●●●●●23:00
Fri 8 Oct 60%●●●●●●●●●●23:00
Sat 9 Oct 69%●●●●●●●●●●21:00
Sun 10 Oct 77%●●●●●●●●●●21:00
Mon 11 Oct 84%●●●●●●●●●●21:00
Tue 12 Oct 91%●●●●●●●●●●21:00
Wed 13 Oct 95%●●●●●●●●●●21:00
Thu 14 Oct 98%●●●●●●●●●●21:00
Fri 15 Oct 100%●●●●●●●●●●21:00
Sat 16 Oct 99%●●●●●●●●●●21:00
Sun 17 Oct 96%●●●●●●●●●●21:00
Mon 18 Oct 91%●●●●●●●●●●21:00
Tue 19 Oct 84%●●●●●●●●●●21:00
Wed 20 Oct 74%●●●●●●●●●●21:00
Thu 21 Oct 64%●●●●●●●●●●21:00
Fri 22 Oct 52%●●●●●●●●●●21:00
Sat 23 Oct 40%●●●●●●●●●●21:00
Sun 24 Oct 29%●●●●●●●●●●21:00
Mon 25 Oct 19%●●●●●●●●●●21:00
Tue 26 Oct 11%●●●●●●●●●●21:00
Wed 27 Oct 5%●●●●●●●●●●21:00
Thu 28 Oct 1%●●●●●●●●●●21:00
Fri 29 Oct 0%●●●●●●●●●●21:00
Sat 30 Oct 2%●●●●●●●●●●21:00
Sun 31 Oct 5%●●●●●●●●●●23:00

Check one night in detail Jervis Bay tours

Questions

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

The darkest nights are Fri 1 Oct, Sat 2 Oct, Sun 3 Oct, Mon 4 Oct, Tue 19 Oct, Wed 20 Oct, Thu 21 Oct, Fri 22 Oct, Sat 23 Oct, Sun 24 Oct and more. 19 of 31 nights score at least 4 out of 5.

Which nights should I avoid in October 2027?

Avoid the nights around the full moon on Sat 16 Oct, when moonlight washes out the glow.

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

21:00 is the darker choice on 15 nights; 23:00 is the darker choice on 5 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).