Pick the dates from geometry.
Moon and darkness timing can be calculated ahead; weather becomes less certain further out. Choose the window now and check the cloud when it gets close. Thirty nights at Buena Park.
Dark windows over the next 30 nights
Window length in hours · same 0–24 hour scale · geometry, not weather
3 Nov · Buena Park
Waning crescent · 24% lit at local midnight.
Astronomical darkness
3 Nov · 18:40 → 4 Nov · 05:00 (10.3h)
Moon below horizon during darkness
7.3h total.
Longest window for your filters
3 Nov · 18:40 → 4 Nov · 05:00 Meets your minimum duration.
Times in America/Los_Angeles · approximately 20-minute samples. Geometry only, not a weather forecast.
4 Nov · Buena Park
Waning crescent · 15% lit at local midnight.
Astronomical darkness
4 Nov · 18:40 → 5 Nov · 05:00 (10.3h)
Moon below horizon during darkness
8.3h total.
Longest window for your filters
4 Nov · 18:40 → 5 Nov · 05:00 Meets your minimum duration.
Times in America/Los_Angeles · approximately 20-minute samples. Geometry only, not a weather forecast.
5 Nov · Buena Park
Waning crescent · 8% lit at local midnight.
Astronomical darkness
5 Nov · 18:40 → 6 Nov · 05:00 (10.3h)
Moon below horizon during darkness
9.3h total.
Longest window for your filters
5 Nov · 18:40 → 6 Nov · 05:00 Meets your minimum duration.
Times in America/Los_Angeles · approximately 20-minute samples. Geometry only, not a weather forecast.
6 Nov · Buena Park
Waning crescent · 4% lit at local midnight.
Astronomical darkness
6 Nov · 18:40 → 7 Nov · 05:00 (10.3h)
Moon below horizon during darkness
10.3h total.
Longest window for your filters
6 Nov · 18:40 → 7 Nov · 05:00 Meets your minimum duration.
Times in America/Los_Angeles · approximately 20-minute samples. Geometry only, not a weather forecast.
7 Nov · Buena Park
New moon · 1% lit at local midnight.
Astronomical darkness
7 Nov · 18:20 → 8 Nov · 05:00 (10.7h)
Moon below horizon during darkness
10.7h total.
Longest window for your filters
7 Nov · 18:20 → 8 Nov · 05:00 Meets your minimum duration.
Times in America/Los_Angeles · approximately 20-minute samples. Geometry only, not a weather forecast.
8 Nov · Buena Park
New moon · 0% lit at local midnight.
Astronomical darkness
8 Nov · 18:20 → 9 Nov · 05:00 (10.7h)
Moon below horizon during darkness
10.7h total.
Longest window for your filters
8 Nov · 18:20 → 9 Nov · 05:00 Meets your minimum duration.
Times in America/Los_Angeles · approximately 20-minute samples. Geometry only, not a weather forecast.
9 Nov · Buena Park
Waxing crescent · 2% lit at local midnight.
Astronomical darkness
9 Nov · 18:20 → 10 Nov · 05:00 (10.7h)
Moon below horizon during darkness
10.7h total.
Longest window for your filters
9 Nov · 18:20 → 10 Nov · 05:00 Meets your minimum duration.
Times in America/Los_Angeles · approximately 20-minute samples. Geometry only, not a weather forecast.
10 Nov · Buena Park
Waxing crescent · 5% lit at local midnight.
Astronomical darkness
10 Nov · 18:20 → 11 Nov · 05:00 (10.7h)
Moon below horizon during darkness
10.7h total.
Longest window for your filters
10 Nov · 18:20 → 11 Nov · 05:00 Meets your minimum duration.
Times in America/Los_Angeles · approximately 20-minute samples. Geometry only, not a weather forecast.
11 Nov · Buena Park
Waxing crescent · 9% lit at local midnight.
Astronomical darkness
11 Nov · 18:20 → 12 Nov · 05:00 (10.7h)
Moon below horizon during darkness
10.3h total.
Longest window for your filters
11 Nov · 18:20 → 12 Nov · 05:00 Meets your minimum duration.
Times in America/Los_Angeles · approximately 20-minute samples. Geometry only, not a weather forecast.
12 Nov · Buena Park
Waxing crescent · 15% lit at local midnight.
Astronomical darkness
12 Nov · 18:20 → 13 Nov · 05:00 (10.7h)
Moon below horizon during darkness
9.3h total.
Longest window for your filters
12 Nov · 18:20 → 13 Nov · 05:00 Meets your minimum duration.
Times in America/Los_Angeles · approximately 20-minute samples. Geometry only, not a weather forecast.
13 Nov · Buena Park
Waxing crescent · 22% lit at local midnight.
Astronomical darkness
13 Nov · 18:20 → 14 Nov · 05:00 (10.7h)
Moon below horizon during darkness
8.3h total.
Longest window for your filters
13 Nov · 18:20 → 14 Nov · 05:00 Meets your minimum duration.
Times in America/Los_Angeles · approximately 20-minute samples. Geometry only, not a weather forecast.
14 Nov · Buena Park
Waxing crescent · 31% lit at local midnight.
Astronomical darkness
14 Nov · 18:20 → 15 Nov · 05:00 (10.7h)
Moon below horizon during darkness
7.7h total.
Longest window for your filters
14 Nov · 21:20 → 15 Nov · 05:00 Meets your minimum duration.
Times in America/Los_Angeles · approximately 20-minute samples. Geometry only, not a weather forecast.
15 Nov · Buena Park
First quarter · 40% lit at local midnight.
Astronomical darkness
15 Nov · 18:20 → 16 Nov · 05:00 (10.7h)
Moon below horizon during darkness
6.7h total.
Longest window for your filters
15 Nov · 22:20 → 16 Nov · 05:00 Meets your minimum duration.
Times in America/Los_Angeles · approximately 20-minute samples. Geometry only, not a weather forecast.
16 Nov · Buena Park
First quarter · 50% lit at local midnight.
Astronomical darkness
16 Nov · 18:20 → 17 Nov · 05:00 (10.7h)
Moon below horizon during darkness
5.7h total.
Longest window for your filters
16 Nov · 23:20 → 17 Nov · 05:00 Does not meet your minimum duration.
Times in America/Los_Angeles · approximately 20-minute samples. Geometry only, not a weather forecast.
17 Nov · Buena Park
First quarter · 59% lit at local midnight.
Astronomical darkness
17 Nov · 18:20 → 18 Nov · 05:20 (11.0h)
Moon below horizon during darkness
5.0h total.
Longest window for your filters
18 Nov · 00:20 → 18 Nov · 05:20 Does not meet your minimum duration.
Times in America/Los_Angeles · approximately 20-minute samples. Geometry only, not a weather forecast.
18 Nov · Buena Park
Waxing gibbous · 69% lit at local midnight.
Astronomical darkness
18 Nov · 18:20 → 19 Nov · 05:20 (11.0h)
Moon below horizon during darkness
4.0h total.
Longest window for your filters
19 Nov · 01:20 → 19 Nov · 05:20 Does not meet your minimum duration.
Times in America/Los_Angeles · approximately 20-minute samples. Geometry only, not a weather forecast.
19 Nov · Buena Park
Waxing gibbous · 78% lit at local midnight.
Astronomical darkness
19 Nov · 18:20 → 20 Nov · 05:20 (11.0h)
Moon below horizon during darkness
3.0h total.
Longest window for your filters
20 Nov · 02:20 → 20 Nov · 05:20 Does not meet your minimum duration.
Times in America/Los_Angeles · approximately 20-minute samples. Geometry only, not a weather forecast.
20 Nov · Buena Park
Waxing gibbous · 86% lit at local midnight.
Astronomical darkness
20 Nov · 18:20 → 21 Nov · 05:20 (11.0h)
Moon below horizon during darkness
1.7h total.
Longest window for your filters
21 Nov · 03:40 → 21 Nov · 05:20 Does not meet your minimum duration.
Times in America/Los_Angeles · approximately 20-minute samples. Geometry only, not a weather forecast.
21 Nov · Buena Park
Waxing gibbous · 93% lit at local midnight.
Astronomical darkness
21 Nov · 18:20 → 22 Nov · 05:20 (11.0h)
Moon below horizon during darkness
0.7h total.
Longest window for your filters
22 Nov · 04:40 → 22 Nov · 05:20 Does not meet your minimum duration.
Times in America/Los_Angeles · approximately 20-minute samples. Geometry only, not a weather forecast.
22 Nov · Buena Park
Waxing gibbous · 98% lit at local midnight.
Astronomical darkness
22 Nov · 18:20 → 23 Nov · 05:20 (11.0h)
Moon below horizon during darkness
0.0h total.
Longest window for your filters
None. Does not meet your minimum duration.
Times in America/Los_Angeles · approximately 20-minute samples. Geometry only, not a weather forecast.
23 Nov · Buena Park
Full moon · 100% lit at local midnight.
Astronomical darkness
23 Nov · 18:20 → 24 Nov · 05:20 (11.0h)
Moon below horizon during darkness
0.0h total.
Longest window for your filters
None. Does not meet your minimum duration.
Times in America/Los_Angeles · approximately 20-minute samples. Geometry only, not a weather forecast.
24 Nov · Buena Park
Full moon · 99% lit at local midnight.
Astronomical darkness
24 Nov · 18:20 → 25 Nov · 05:20 (11.0h)
Moon below horizon during darkness
0.0h total.
Longest window for your filters
None. Does not meet your minimum duration.
Times in America/Los_Angeles · approximately 20-minute samples. Geometry only, not a weather forecast.
25 Nov · Buena Park
Waning gibbous · 96% lit at local midnight.
Astronomical darkness
25 Nov · 18:20 → 26 Nov · 05:20 (11.0h)
Moon below horizon during darkness
0.0h total.
Longest window for your filters
None. Does not meet your minimum duration.
Times in America/Los_Angeles · approximately 20-minute samples. Geometry only, not a weather forecast.
26 Nov · Buena Park
Waning gibbous · 90% lit at local midnight.
Astronomical darkness
26 Nov · 18:20 → 27 Nov · 05:20 (11.0h)
Moon below horizon during darkness
0.7h total.
Longest window for your filters
26 Nov · 18:20 → 26 Nov · 19:00 Does not meet your minimum duration.
Times in America/Los_Angeles · approximately 20-minute samples. Geometry only, not a weather forecast.
27 Nov · Buena Park
Waning gibbous · 82% lit at local midnight.
Astronomical darkness
27 Nov · 18:20 → 28 Nov · 05:20 (11.0h)
Moon below horizon during darkness
1.7h total.
Longest window for your filters
27 Nov · 18:20 → 27 Nov · 20:00 Does not meet your minimum duration.
Times in America/Los_Angeles · approximately 20-minute samples. Geometry only, not a weather forecast.
28 Nov · Buena Park
Waning gibbous · 73% lit at local midnight.
Astronomical darkness
28 Nov · 18:20 → 29 Nov · 05:20 (11.0h)
Moon below horizon during darkness
3.0h total.
Longest window for your filters
28 Nov · 18:20 → 28 Nov · 21:20 Does not meet your minimum duration.
Times in America/Los_Angeles · approximately 20-minute samples. Geometry only, not a weather forecast.
29 Nov · Buena Park
Waning gibbous · 62% lit at local midnight.
Astronomical darkness
29 Nov · 18:20 → 30 Nov · 05:20 (11.0h)
Moon below horizon during darkness
4.0h total.
Longest window for your filters
29 Nov · 18:20 → 29 Nov · 22:20 Does not meet your minimum duration.
Times in America/Los_Angeles · approximately 20-minute samples. Geometry only, not a weather forecast.
30 Nov · Buena Park
Last quarter · 50% lit at local midnight.
Astronomical darkness
30 Nov · 18:20 → 1 Dec · 05:20 (11.0h)
Moon below horizon during darkness
5.3h total.
Longest window for your filters
30 Nov · 18:20 → 30 Nov · 23:40 Does not meet your minimum duration.
Times in America/Los_Angeles · approximately 20-minute samples. Geometry only, not a weather forecast.
1 Dec · Buena Park
Waning crescent · 39% lit at local midnight.
Astronomical darkness
1 Dec · 18:20 → 2 Dec · 05:20 (11.0h)
Moon below horizon during darkness
6.3h total.
Longest window for your filters
1 Dec · 18:20 → 2 Dec · 00:40 Meets your minimum duration.
Times in America/Los_Angeles · approximately 20-minute samples. Geometry only, not a weather forecast.
2 Dec · Buena Park
Waning crescent · 29% lit at local midnight.
Astronomical darkness
2 Dec · 18:20 → 3 Dec · 05:20 (11.0h)
Moon below horizon during darkness
7.3h total.
Longest window for your filters
2 Dec · 18:20 → 3 Dec · 01:40 Meets your minimum duration.
Times in America/Los_Angeles · approximately 20-minute samples. Geometry only, not a weather forecast.
13 nights in a row meeting 6 h with under 25% illumination. 15 qualify across the 30.
The usable moonless stretch collapses to nothing around it. A good week for planets, doubles and lunar detail.
The moon moves about 12° east a day, so the dark window shifts roughly fifty minutes later each night. A Friday plan is not a Saturday plan.
Plan somewhere else
Sky geometry only — no weather claims beyond the seven-night forecast. How to plan around the moon →