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Aileu

-8.728° S   125.566° E  ·  926 M
55 /100
PEAK
Worth setting up — 3 hours of workable sky from 03:00.
BEST WINDOW 03:00–06:00 · ASTRO DARK 03:00–06:00 · MOON 0%
Transparency
0.25
Seeing
1.00
Cloud
13%
Moon
0%

Good tonight

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

Sky state
Lighter = daylight and twilight  ·  unshaded = astronomical dark
Score
03
04
05
06
07
44
55
54
23
0
BEST WINDOW
Low cloud
30%
13%
14%
24%
45%
Mid cloud
1%
0%
1%
0%
0%
High cloud
0%
0%
0%
0%
0%
Transparency
0.22
0.24
0.25
0.23
0.24
Seeing
1.00
1.00
1.00
1.00
1.00
Moon clear
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
03 Fair · 44/100
Starting from
100
Cloud
−36
Transparency
−20
Seeing
−0
Moonlight
−0
Darkness
−0
Score
44
CLOUD 30% LOW 30% MID 1% HIGH 0% SUN -56.0° MOON -57.6° / 0% WIND 2 TEMP 18°
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
Conditions for planets and the Moon

Seeing is everything. Darkness and moonlight barely matter, and a hazy, humid night that ruins deep-sky work is often the steadiest night of the year for planetary detail.

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 02:30 · OBSERVE 03:00–06:00 · 3H · MEAN 51

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

030507
TWILIGHT BEGINS 06:00
SET UP 02:30 · OBSERVE 03:00–07:00 · 4H · MEAN 59

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

030507
CLOUD RETURNS 07:00MOONLIGHT IGNORED FOR THIS TARGET
SET UP 02:30 · OBSERVE 03:00–06:00 · 3H · MEAN 47

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

030507
TWILIGHT BEGINS 06:00
SET UP 03:30 · OBSERVE 04:00–06:00 · 2H · MEAN 40

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

030507
CLOUD BREAKS 04:00TWILIGHT BEGINS 06:00
SET UP 02:30 · OBSERVE 03:00–06:00 · 3H · MEAN 52

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

030507
TWILIGHT BEGINS 06:00
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The next week of nights

Tonight · 12 Aug
55
Good
MOON 0%
03:00–06:00
Tomorrow · 13 Aug
54
Fair
MOON 1%
03:00–06:00
Friday · 14 Aug
89
Excellent
MOON 5%
20:00–06:00
Saturday · 15 Aug
70
Good
MOON 8%
03:00–04:00
Sunday · 16 Aug
39
Fair
MOON 19%
21:00–22:00
Monday · 17 Aug
46
Fair
MOON 28%
03:00–04:00
Tuesday · 18 Aug
35
Fair
MOON 37%
21:00–22:00
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Nearby locations

About this forecast

Conditions for Aileu, Timor-Leste 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 →