GoodSeeing
Home › Locations › Shanwei

Shanwei

22.782° N   115.347° E  ·  9 M
46 /100
PEAK
Marginal, but there is a 3 hours gap from 02:00.
BEST WINDOW 02:00–05:00 · ASTRO DARK 00:00–05:00 · MOON 0%
Transparency
0.31
Seeing
0.59
Cloud
26%
Moon
0%

Fair tonight

Hour by hour, local to Shanwei. 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
06
31
29
41
46
42
21
0
BEST WINDOW
Low cloud
23%
31%
25%
23%
16%
17%
13%
Mid cloud
5%
1%
2%
1%
11%
15%
13%
High cloud
63%
63%
25%
13%
7%
11%
6%
Transparency
0.31
0.30
0.31
0.31
0.10
0.10
0.10
Seeing
0.53
0.58
0.59
0.57
0.57
0.54
0.53
Moon clear
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
00 Poor · 31/100
Starting from
100
Cloud
−52
Transparency
−13
Seeing
−4
Moonlight
−0
Darkness
−0
Score
31
CLOUD 72% LOW 23% MID 5% HIGH 63% SUN -51.8° MOON -50.5° / 0% WIND 7 TEMP 29°
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 01:30 · OBSERVE 02:00–05:00 · 3H · MEAN 45

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

00020406
HIGH CLOUD CLEARS 02:00TWILIGHT BEGINS 05:00
SET UP 01:30 · OBSERVE 02:00–06:00 · 4H · MEAN 44

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

00020406
HIGH CLOUD CLEARS 02:00TWILIGHT BEGINS 06:00MOONLIGHT IGNORED FOR THIS TARGET
SET UP 01:30 · OBSERVE 02:00–05:00 · 3H · MEAN 42

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

00020406
HIGH CLOUD CLEARS 02:00TWILIGHT BEGINS 05:00
NO USABLE WINDOW FOR THIS TARGET TONIGHT

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

00020406
CONDITIONS STAY BELOW THE USABLE THRESHOLD
SET UP 01:30 · OBSERVE 02:00–05:00 · 3H · MEAN 47

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

00020406
HIGH CLOUD CLEARS 02:00TWILIGHT BEGINS 05:00
Advertisement
Reserved

The next week of nights

Tonight · 12 Aug
46
Fair
MOON 0%
02:00–05:00
Tomorrow · 13 Aug
37
Fair
MOON 1%
21:00–00:00
Friday · 14 Aug
23
Poor
MOON 5%
Saturday · 15 Aug
22
Poor
MOON 10%
Sunday · 16 Aug
39
Fair
MOON 19%
02:00–03:00
Monday · 17 Aug
51
Fair
MOON 28%
02:00–03:00
Tuesday · 18 Aug
26
Poor
MOON 37%
Advertisement
Reserved

Nearby locations

About this forecast

Conditions for Shanwei, 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 →