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Lianyungang

34.599° N   119.216° E  ·  1 M
52 /100
PEAK
Marginal, but there is a 3 hours gap from 00:00.
BEST WINDOW 00:00–03:00 · ASTRO DARK 00:00–04:00 · MOON 0%
Transparency
0.45
Seeing
0.95
Cloud
33%
Moon
0%

Fair tonight

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

Sky state
Lighter = daylight and twilight  ·  unshaded = astronomical dark
Score
00
01
02
03
04
05
52
44
51
12
11
0
BEST WINDOW
Low cloud
10%
16%
6%
18%
16%
9%
Mid cloud
17%
21%
15%
84%
72%
99%
High cloud
16%
23%
27%
23%
70%
38%
Transparency
0.45
0.41
0.36
0.35
0.34
0.32
Seeing
0.84
0.91
0.95
0.91
0.89
0.89
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
00 Fair · 52/100
Starting from
100
Cloud
−31
Transparency
−15
Seeing
−2
Moonlight
−0
Darkness
−0
Score
52
CLOUD 33% LOW 10% MID 17% HIGH 16% SUN -40.4° MOON -39.2° / 0% WIND 4 TEMP 25°
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 23:30 · OBSERVE 00:00–03:00 · 3H · MEAN 49

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

000204
CLOUD RETURNS 03:00
SET UP 23:30 · OBSERVE 00:00–03:00 · 3H · MEAN 55

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

000204
CLOUD RETURNS 03:00MOONLIGHT IGNORED FOR THIS TARGET
SET UP 23:30 · OBSERVE 00:00–03:00 · 3H · MEAN 44

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

000204
CLOUD RETURNS 03:00
SET UP 23:30 · OBSERVE 00:00–01:00 · 1H · MEAN 37

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

000204
SET UP 23:30 · OBSERVE 00:00–03:00 · 3H · MEAN 47

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

000204
CLOUD RETURNS 03:00
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The next week of nights

Tonight · 12 Aug
52
Fair
MOON 0%
00:00–03:00
Tomorrow · 13 Aug
40
Fair
MOON 1%
02:00–05:00
Friday · 14 Aug
58
Good
MOON 5%
21:00–05:00
Saturday · 15 Aug
63
Good
MOON 10%
02:00–03:00
Sunday · 16 Aug
69
Good
MOON 19%
02:00–03:00
Monday · 17 Aug
21
Poor
MOON 28%
Tuesday · 18 Aug
65
Good
MOON 37%
02:00–03:00
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Nearby locations

About this forecast

Conditions for Lianyungang, China 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 →