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Ramotswa

-24.872° S   25.870° E  ·  1039 M
35 /100
PEAK
Marginal, but there is a 1 hour gap from 22:00.
BEST WINDOW 22:00–23:00 · ASTRO DARK 20:00–06:00 · MOON 0%
Transparency
0.76
Seeing
0.87
Cloud
52%
Moon
0%

Fair tonight

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

Sky state
Lighter = daylight and twilight  ·  unshaded = astronomical dark
Score
19
20
21
22
23
00
01
02
03
04
05
06
07
23
21
2
35
29
23
0
6
28
21
21
11
0
BEST WINDOW
Low cloud
31%
27%
94%
40%
43%
20%
98%
31%
22%
41%
42%
30%
14%
Mid cloud
48%
71%
56%
27%
33%
40%
99%
85%
6%
2%
2%
5%
3%
High cloud
0%
0%
0%
0%
6%
74%
88%
92%
85%
89%
82%
81%
56%
Transparency
0.76
0.72
0.66
0.60
0.55
0.51
0.50
0.48
0.39
0.32
0.27
0.25
0.24
Seeing
0.67
0.68
0.68
0.62
0.64
0.66
0.66
0.67
0.77
0.83
0.84
0.87
0.86
Moon clear
down
down
down
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
19 Poor · 23/100
Starting from
100
Cloud
−61
Transparency
−4
Seeing
−3
Moonlight
−0
Darkness
−9
Score
23
CLOUD 63% LOW 31% MID 48% HIGH 0% SUN -14.7° MOON -14.0° / 0% WIND 5 TEMP 15°
Excellent 75+ Good 55+ Fair 35+ Poor 15+ Not worth it Seeing is estimated from surface wind — see how we score.

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 21:30 · OBSERVE 22:00–23:00 · 1H · MEAN 37

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

19212301030507
CLOUD BREAKS 22:00
NO USABLE WINDOW FOR THIS TARGET TONIGHT

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

19212301030507
CLOUD NEVER DROPS BELOW 52%
SET UP 21:30 · OBSERVE 22:00–23:00 · 1H · MEAN 37

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

19212301030507
CLOUD BREAKS 22:00
NO USABLE WINDOW FOR THIS TARGET TONIGHT

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

19212301030507
CLOUD NEVER DROPS BELOW 52%
NO USABLE WINDOW FOR THIS TARGET TONIGHT

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

19212301030507
CLOUD NEVER DROPS BELOW 52%
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The next week of nights

Tonight · 12 Aug
35
Fair
MOON 0%
22:00–23:00
Tomorrow · 13 Aug
74
Good
MOON 2%
20:00–00:00
Friday · 14 Aug
89
Excellent
MOON 6%
20:00–06:00
Saturday · 15 Aug
95
Excellent
MOON 13%
20:00–21:00
Sunday · 16 Aug
94
Excellent
MOON 21%
20:00–21:00
Monday · 17 Aug
93
Excellent
MOON 30%
02:00–03:00
Tuesday · 18 Aug
94
Excellent
MOON 39%
02:00–03:00
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Nearby locations

About this forecast

Conditions for Ramotswa, Botswana 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 →