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Jervis Bay in April 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, 18 dark nights

New moon Wed 7 Apr · Full moon Wed 21 Apr

Night by night, April 2027

NightMoon21:0023:00Best
Thu 1 Apr 28%●●●●●●●●●●21:00
Fri 2 Apr 20%●●●●●●●●●●21:00
Sat 3 Apr 12%●●●●●●●●●●21:00
Sun 4 Apr 7%●●●●●●●●●●21:00
Mon 5 Apr 3%●●●●●●●●●●21:00
Tue 6 Apr 0%●●●●●●●●●●21:00
Wed 7 Apr 0%●●●●●●●●●●21:00
Thu 8 Apr 3%●●●●●●●●●●21:00
Fri 9 Apr 8%●●●●●●●●●●21:00
Sat 10 Apr 15%●●●●●●●●●●21:00
Sun 11 Apr 24%●●●●●●●●●●21:00
Mon 12 Apr 34%●●●●●●●●●●23:00
Tue 13 Apr 46%●●●●●●●●●●23:00
Wed 14 Apr 58%●●●●●●●●●●23:00
Thu 15 Apr 69%●●●●●●●●●●23:00
Fri 16 Apr 79%●●●●●●●●●●23:00
Sat 17 Apr 88%●●●●●●●●●●23:00
Sun 18 Apr 94%●●●●●●●●●●21:00
Mon 19 Apr 98%●●●●●●●●●●21:00
Tue 20 Apr 100%●●●●●●●●●●21:00
Wed 21 Apr 99%●●●●●●●●●●23:00
Thu 22 Apr 96%●●●●●●●●●●23:00
Fri 23 Apr 92%●●●●●●●●●●21:00
Sat 24 Apr 86%●●●●●●●●●●21:00
Sun 25 Apr 79%●●●●●●●●●●21:00
Mon 26 Apr 71%●●●●●●●●●●21:00
Tue 27 Apr 62%●●●●●●●●●●21:00
Wed 28 Apr 52%●●●●●●●●●●21:00
Thu 29 Apr 43%●●●●●●●●●●21:00
Fri 30 Apr 34%●●●●●●●●●●21:00

Check one night in detail Jervis Bay tours

Questions

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

The darkest nights are Thu 1 Apr, Fri 2 Apr, Sat 3 Apr, Sun 4 Apr, Mon 5 Apr, Tue 6 Apr, Wed 7 Apr, Thu 8 Apr, Fri 9 Apr, Sat 10 Apr and more. 18 of 30 nights score at least 4 out of 5.

Which nights should I avoid in April 2027?

Avoid the nights around the full moon on Wed 21 Apr, when moonlight washes out the glow.

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

21:00 is the darker choice on 16 nights; 23:00 is the darker choice on 3 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).