1.1 usable nights
0–2 in the middle half of years · 0.5 typically near a dark moon.
351 astronomical-dark hours in an average month
August: 11.6 usable nights on average. Use this seasonal climate baseline to choose a month, then use the live forecast to choose a night.
It averages 11.6 usable nights, versus 1.1 in January. A typical August lands between 10 and 13 usable nights.
0–2 in the middle half of years · 0.5 typically near a dark moon.
351 astronomical-dark hours in an average month
1–3 in the middle half of years · 0.8 typically near a dark moon.
291 astronomical-dark hours in an average month
3–6 in the middle half of years · 1.3 typically near a dark moon.
275 astronomical-dark hours in an average month
4–6 in the middle half of years · 1.4 typically near a dark moon.
223 astronomical-dark hours in an average month
4–7 in the middle half of years · 2.0 typically near a dark moon.
184 astronomical-dark hours in an average month
5–10 in the middle half of years · 2.6 typically near a dark moon.
120 astronomical-dark hours in an average month
9–12 in the middle half of years · 2.9 typically near a dark moon.
163 astronomical-dark hours in an average month
10–13 in the middle half of years · 4.0 typically near a dark moon.
209 astronomical-dark hours in an average month
9–13 in the middle half of years · 4.3 typically near a dark moon.
248 astronomical-dark hours in an average month
5–9 in the middle half of years · 2.3 typically near a dark moon.
305 astronomical-dark hours in an average month
4–7 in the middle half of years · 1.6 typically near a dark moon.
330 astronomical-dark hours in an average month
1–3 in the middle half of years · 0.6 typically near a dark moon.
370 astronomical-dark hours in an average month
The cloud product is a roughly 1° regional grid. It can reveal seasonality, but it cannot know a mountain ridge, valley fog pocket, locked gate, smoke event or the exact sky you will get.
Source: NASA POWER daily data, parameter CLOUD_AMT_NIGHT from the CERES SYN1deg cloud product. GoodSeeing calculates astronomical darkness and lunar illumination independently for each place.