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Pasir Puteh

5.833° N   102.400° E  ·  7 M
39 /100
PEAK
Marginal, but there is a 2 hours gap from 04:00.
BEST WINDOW 04:00–06:00 · ASTRO DARK 02:00–06:00 · MOON 0%
Transparency
0.23
Seeing
1.00
Cloud
65%
Moon
0%

Fair tonight

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

Sky state
Lighter = daylight and twilight  ·  unshaded = astronomical dark
Score
02
03
04
05
06
07
28
28
39
39
34
0
BEST WINDOW
Low cloud
11%
9%
2%
5%
0%
4%
Mid cloud
7%
16%
12%
6%
3%
2%
High cloud
91%
84%
61%
65%
77%
90%
Transparency
0.18
0.19
0.19
0.19
0.23
0.23
Seeing
1.00
1.00
1.00
1.00
1.00
1.00
Moon clear
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
02 Poor · 28/100
Starting from
100
Cloud
−58
Transparency
−14
Seeing
−0
Moonlight
−0
Darkness
−0
Score
28
CLOUD 92% LOW 11% MID 7% HIGH 91% SUN -66.5° MOON -66.6° / 0% WIND 2 TEMP 25°
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 03:30 · OBSERVE 04:00–06:00 · 2H · MEAN 37

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

020406
HIGH CLOUD CLEARS 04:00
SET UP 03:30 · OBSERVE 04:00–07:00 · 3H · MEAN 47

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

020406
HIGH CLOUD CLEARS 04:00TWILIGHT BEGINS 07:00MOONLIGHT IGNORED FOR THIS TARGET
NO USABLE WINDOW FOR THIS TARGET TONIGHT

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

020406
CLOUD NEVER DROPS BELOW 65%
NO USABLE WINDOW FOR THIS TARGET TONIGHT

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

020406
CLOUD NEVER DROPS BELOW 65%
SET UP 03:30 · OBSERVE 04:00–06:00 · 2H · MEAN 35

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

020406
HIGH CLOUD CLEARS 04:00
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The next week of nights

Tonight · 12 Aug
39
Fair
MOON 0%
04:00–06:00
Tomorrow · 13 Aug
55
Good
MOON 1%
23:00–05:00
Friday · 14 Aug
34
Poor
MOON 5%
Saturday · 15 Aug
48
Fair
MOON 10%
02:00–03:00
Sunday · 16 Aug
35
Fair
MOON 19%
02:00–03:00
Monday · 17 Aug
29
Poor
MOON 28%
Tuesday · 18 Aug
20
Poor
MOON 37%
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Nearby locations

About this forecast

Conditions for Pasir Puteh, Malaysia 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 →