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Natahoyo

43.540° N   5.682° W  ·  9 M
48 /100
PEAK
Marginal, but there is a 1 hour gap from 03:00.
BEST WINDOW 03:00–04:00 · ASTRO DARK 00:00–06:00 · MOON 0%
Transparency
0.31
Seeing
1.00
Cloud
33%
Moon
0%

Fair tonight

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

Sky state
Lighter = daylight and twilight  ·  unshaded = astronomical dark
Score
22
23
00
01
02
03
04
05
06
07
0
7
0
2
33
48
15
11
0
0
BEST WINDOW
Low cloud
37%
85%
100%
98%
53%
33%
79%
85%
100%
100%
Mid cloud
2%
2%
2%
1%
1%
1%
0%
0%
0%
0%
High cloud
16%
12%
5%
0%
0%
0%
0%
0%
0%
0%
Transparency
0.31
0.28
0.27
0.29
0.29
0.31
0.30
0.29
0.28
0.29
Seeing
0.92
0.98
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
Moon clear
down
down
down
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
22 Clouded out · 0/100
Starting from
100
Cloud
−44
Transparency
−15
Seeing
−1
Moonlight
−0
Darkness
−40
Score
0
CLOUD 48% LOW 37% MID 2% HIGH 16% SUN -5.5° MOON -3.1° / 0% WIND 3 TEMP 24°
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 02:30 · OBSERVE 03:00–04:00 · 1H · MEAN 48

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

2200020406
CLOUD BREAKS 03:00CLOUD RETURNS 04:00
SET UP 01:30 · OBSERVE 02:00–04:00 · 2H · MEAN 50

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

2200020406
CLOUD BREAKS 02:00CLOUD RETURNS 04:00MOONLIGHT IGNORED FOR THIS TARGET
SET UP 02:30 · OBSERVE 03:00–04:00 · 1H · MEAN 45

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

2200020406
CLOUD BREAKS 03:00CLOUD RETURNS 04:00
NO USABLE WINDOW FOR THIS TARGET TONIGHT

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

2200020406
CONDITIONS STAY BELOW THE USABLE THRESHOLD
SET UP 02:30 · OBSERVE 03:00–04:00 · 1H · MEAN 47

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

2200020406
CLOUD BREAKS 03:00CLOUD RETURNS 04:00
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The next week of nights

Tonight · 12 Aug
48
Fair
MOON 0%
03:00–04:00
Tomorrow · 13 Aug
47
Fair
MOON 2%
05:00–06:00
Friday · 14 Aug
20
Poor
MOON 6%
Saturday · 15 Aug
0
Clouded out
MOON 13%
Sunday · 16 Aug
58
Good
MOON 21%
02:00–03:00
Monday · 17 Aug
23
Poor
MOON 30%
Tuesday · 18 Aug
55
Good
MOON 39%
02:00–03:00
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Nearby locations

About this forecast

Conditions for Natahoyo, Spain 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 →