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Yamethin

20.432° N   96.139° E  ·  203 M
41 /100
PEAK
Marginal, but there is a 1 hour gap from 23:30.
BEST WINDOW 23:30–00:30 · ASTRO DARK 23:30–04:30 · MOON 0%
Transparency
0.26
Seeing
0.73
Cloud
41%
Moon
0%

Fair tonight

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

Sky state
Lighter = daylight and twilight  ·  unshaded = astronomical dark
Score
23
00
01
02
03
04
05
41
34
28
16
10
12
0
BEST WINDOW
Low cloud
8%
11%
11%
27%
56%
47%
74%
Mid cloud
28%
40%
44%
69%
67%
70%
85%
High cloud
13%
16%
34%
20%
14%
2%
4%
Transparency
0.26
0.26
0.24
0.23
0.21
0.23
0.10
Seeing
0.65
0.67
0.68
0.70
0.73
0.72
0.72
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
23 Fair · 41/100
Starting from
100
Cloud
−36
Transparency
−19
Seeing
−4
Moonlight
−0
Darkness
−0
Score
41
CLOUD 41% LOW 8% MID 28% HIGH 13% SUN -53.2° MOON -52.0° / 0% WIND 6 TEMP 24°
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 23:00 · OBSERVE 23:30–01:30 · 2H · MEAN 39

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

23010305
SET UP 23:00 · OBSERVE 23:30–01:30 · 2H · MEAN 41

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

23010305
MOONLIGHT IGNORED FOR THIS TARGET
SET UP 23:00 · OBSERVE 23:30–00:30 · 1H · MEAN 40

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

23010305
NO USABLE WINDOW FOR THIS TARGET TONIGHT

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

23010305
CLOUD NEVER DROPS BELOW 41%
SET UP 23:00 · OBSERVE 23:30–00:30 · 1H · MEAN 43

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

23010305
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The next week of nights

Tonight · 12 Aug
41
Fair
MOON 0%
23:30–00:30
Tomorrow · 13 Aug
31
Poor
MOON 2%
Friday · 14 Aug
32
Poor
MOON 6%
Saturday · 15 Aug
11
Clouded out
MOON 12%
Sunday · 16 Aug
4
Clouded out
MOON 19%
Monday · 17 Aug
6
Clouded out
MOON 28%
Tuesday · 18 Aug
13
Clouded out
MOON 37%
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Nearby locations

About this forecast

Conditions for Yamethin, Myanmar (Burma) 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 →