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Sadabe

-18.633° S   47.700° E  ·  1336 M
53 /100
PEAK
Marginal, but there is a 1 hour gap from 05:00.
BEST WINDOW 05:00–06:00 · ASTRO DARK 21:00–05:00 · MOON 0%
Transparency
0.31
Seeing
1.00
Cloud
20%
Moon
0%

Fair tonight

Hour by hour, local to Sadabe. Colour encodes the score and nothing else; every other measurement is luminance.

Sky state
Lighter = daylight and twilight  ·  unshaded = astronomical dark
Score
21
22
23
00
01
02
03
04
05
06
23
9
3
7
7
9
13
17
53
0
BEST WINDOW
Low cloud
43%
38%
48%
9%
7%
8%
9%
15%
5%
16%
Mid cloud
44%
87%
100%
100%
100%
95%
89%
78%
15%
5%
High cloud
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
Transparency
0.25
0.25
0.25
0.29
0.31
0.29
0.25
0.23
0.21
0.18
Seeing
0.87
0.92
0.92
0.98
1.00
1.00
1.00
1.00
1.00
1.00
Moon clear
down
down
down
down
down
down
down
down
down
down
Inspect

Cloud tracks show clear sky — a longer bar is better. The figure inside each track is the raw measurement.

Why this hour scored what it did
21 Poor · 23/100
Starting from
100
Cloud
−65
Transparency
−10
Seeing
−1
Moonlight
−0
Darkness
−0
Score
23
CLOUD 70% LOW 43% MID 44% HIGH 0% SUN -48.2° MOON -46.6° / 0% WIND 3 TEMP 15°
Excellent 75+ Good 55+ Fair 35+ Poor 15+ Not worth it Seeing is estimated from surface wind — see how we score.
Tonight's limiting factor
When a clear gap is worth driving for

Ask how long the gap is relative to your setup time and your exposure length. A two-hour gap is a real session for a visual observer and close to worthless for someone doing four-minute subs on a target that needs three hours.

What are you doing tonight?

The same forecast, weighted for the target. Planetary work barely cares about moonlight; long exposures die on high cloud a visual observer would never notice.

SET UP 04:30 · OBSERVE 05:00–06:00 · 1H · MEAN 51

Darkness and moonlight dominate. Faint fuzzies need a genuinely dark sky more than they need steady air.

2123010305
CLOUD BREAKS 05:00TWILIGHT BEGINS 06:00
SET UP 04:30 · OBSERVE 05:00–06:00 · 1H · MEAN 69

Seeing is everything and moonlight is irrelevant. Bright targets punch through twilight, so darkness barely counts.

2123010305
CLOUD BREAKS 05:00TWILIGHT BEGINS 06:00MOONLIGHT IGNORED FOR THIS TARGET
SET UP 04:30 · OBSERVE 05:00–06:00 · 1H · MEAN 48

Tolerates soft seeing, but high cloud wrecks a wide frame and moonlight raises the background everywhere.

2123010305
CLOUD BREAKS 05:00TWILIGHT BEGINS 06:00
SET UP 04:30 · OBSERVE 05:00–06:00 · 1H · MEAN 38

Needs conditions to hold still for hours. Sustained transparency matters more than any single good hour.

2123010305
CLOUD BREAKS 05:00TWILIGHT BEGINS 06:00
SET UP 04:30 · OBSERVE 05:00–06:00 · 1H · MEAN 54

Naked eye, whole sky. Total cloud and moonlight are the only things that count.

2123010305
CLOUD BREAKS 05:00TWILIGHT BEGINS 06:00
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The next week of nights

Tonight · 12 Aug
53
Fair
MOON 0%
05:00–06:00
Tomorrow · 13 Aug
47
Fair
MOON 2%
19:00–20:00
Friday · 14 Aug
58
Good
MOON 6%
00:00–04:00
Saturday · 15 Aug
11
Clouded out
MOON 13%
Sunday · 16 Aug
5
Clouded out
MOON 21%
Monday · 17 Aug
8
Clouded out
MOON 30%
Tuesday · 18 Aug
3
Clouded out
MOON 39%
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Nearby locations

About this forecast

Conditions for Sadabe, Madagascar are computed from the MET Norway forecast model for these exact coordinates, combined with sun and moon positions we calculate directly. The score weighs cloud cover by layer, atmospheric transparency, estimated seeing, moonlight and how dark the sky actually gets. Read the full method →