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Ḥawṭah Banī Tamīm

23.496° N   46.878° E  ·  648 M
78 /100
PEAK
A genuinely good night — 3 hours of clear, dark sky from 21:00.
BEST WINDOW 21:00–00:00 · ASTRO DARK 21:00–05:00 · MOON 0%
Transparency
1.00
Seeing
0.94
Cloud
16%
Moon
0%

Excellent tonight

Hour by hour, local to Ḥawṭah Banī Tamīm. 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
78
75
60
12
13
15
15
65
6
0
BEST WINDOW
Low cloud
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
Mid cloud
16%
23%
41%
97%
96%
94%
95%
38%
17%
5%
High cloud
0%
0%
0%
4%
0%
0%
0%
0%
2%
1%
Transparency
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
Seeing
0.66
0.79
0.82
0.85
0.91
0.90
0.94
0.91
0.85
0.96
Moon clear
down
down
down
down
down
down
down
down
down
0%
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 Excellent · 78/100
Starting from
100
Cloud
−15
Transparency
−0
Seeing
−7
Moonlight
−0
Darkness
−0
Score
78
CLOUD 16% LOW 0% MID 16% HIGH 0% SUN -32.0° MOON -30.2° / 0% WIND 5 TEMP 39°
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 20:30 · OBSERVE 21:00–00:00 · 3H · MEAN 74

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

2123010305
CLOUD RETURNS 00:00
SET UP 20:30 · OBSERVE 21:00–00:00 · 3H · MEAN 66

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

2123010305
CLOUD RETURNS 00:00MOONLIGHT IGNORED FOR THIS TARGET
SET UP 20:30 · OBSERVE 21:00–00:00 · 3H · MEAN 75

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

2123010305
CLOUD RETURNS 00:00
SET UP 20:30 · OBSERVE 21:00–00:00 · 3H · MEAN 66

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

2123010305
CLOUD RETURNS 00:00
SET UP 20:30 · OBSERVE 21:00–00:00 · 3H · MEAN 72

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

2123010305
CLOUD RETURNS 00:00
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The next week of nights

Tonight · 12 Aug
78
Excellent
MOON 0%
21:00–00:00
Tomorrow · 13 Aug
98
Excellent
MOON 2%
20:00–05:00
Friday · 14 Aug
96
Excellent
MOON 6%
20:00–05:00
Saturday · 15 Aug
100
Excellent
MOON 13%
03:00–04:00
Sunday · 16 Aug
99
Excellent
MOON 21%
21:00–22:00
Monday · 17 Aug
99
Excellent
MOON 30%
03:00–04:00
Tuesday · 18 Aug
96
Excellent
MOON 39%
03:00–04:00
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Nearby locations

About this forecast

Conditions for Ḥawṭah Banī Tamīm, Saudi Arabia 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 →