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Tonight · Sat, 10 October 2026

Cévennes National Park stargazing forecast tonight

Hourly clear-sky conditions for observing: cloud by layer, transparency, estimated seeing, moonlight and true astronomical darkness.

44.200°N 3.600°E ·1000 m ·Occitanie, France

26
/100
Poor conditions
at peak

Cloud or fog is the strongest score limit at the best sampled time.

Site darkness · peer measure
Threatened dark skyNot multiplied into the conditions score
21.3–21.6 mag/arcsec²

The score describes tonight’s conditions. Site darkness helps you choose what to observe.

See target outlook ↓Planet observing times →
Best months at Cévennes National Park, Occitanie →Moonless nights →
Tonight in context · local sky & season

Saturn: about 8.7h above 20° during this observing night’s darkness. Longest sampled dark-time opportunity among our four planet targets; not a weather ranking. Planet times →

Position calculations use roughly 20-minute samples. Clouds, skyglow and local obstructions still matter. Milky Way timing →

Best window
None tonight
Window quality
—
Astronomical dark
21:00 – 07:00
Moon
New moon, 0%
Transparency at peak
0.19
Seeing at peak (est.)
0.72
Visual limit (modelled)
5.0–6.5 mag
Tonight's limiting factor
Transparency

Transparency 0.19 — haze and water vapour will cost you the faintest targets. What this means →

Also limiting: Thin high cloud. See the guide →

The night, hour by hour

Colour = score · Luminance = everything else
Sky state
Shaded = daylight and twilight  ·  unshaded = astronomical dark
1
2
17
5
21
26
25
17
16
5
1
Score
Low cloud
100%
98%
95%
70%
91%
50%
29%
23%
38%
49%
86%
87%
77%
Mid cloud
5%
1%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
High cloud
0%
3%
8%
0%
0%
59%
70%
84%
94%
66%
45%
82%
98%
Transparency
0.18
0.14
0.15
0.19
0.17
0.19
0.19
0.19
0.17
0.16
0.16
0.17
0.18
Seeing
0.55
0.59
0.64
0.65
0.67
0.68
0.72
0.75
0.79
0.81
0.82
0.84
0.90
Moon clear
down
down
down
down
down
down
down
down
down
down
down
down
down
20
21
22
23
00
01
02
03
04
05
06
07
08
Inspect

Cloud tracks show clear sky — a longer bar is better. The figure inside each track is the raw measurement.

Score inspectorWhy this hour scored what it did Open peakClose
02 Poor · 26/100
Starting from
100
Cloud
−59
Transparency
−13
Seeing
−2
Moonlight
−0
Darkness
−0
Score
26
CLOUD 81% LOW 29% MID 0% HIGH 70% SUN -52.1° MOON -58.3° / 0% WIND 5 TEMP 9°
Excellent 75+ Good 55+ Fair 35+ Poor 15+ Not worth it Seeing is estimated from surface wind — see how we score.

What can you actually do tonight?

This is GoodSeeing’s decision layer: the same forecast is weighted for your target and site darkness. Planetary work barely cares about moonlight; long exposures can fail on high cloud a visual observer would barely notice. Your choice is remembered on this device and becomes the default for new alert rules.

NO USABLE WINDOW FOR THIS TARGET TONIGHT

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

20220002040608
CLOUD NEVER DROPS BELOW 70%
NO USABLE WINDOW FOR THIS TARGET TONIGHT

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

20220002040608
CLOUD NEVER DROPS BELOW 70%
NO USABLE WINDOW FOR THIS TARGET TONIGHT

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

20220002040608
CLOUD NEVER DROPS BELOW 70%
NO USABLE WINDOW FOR THIS TARGET TONIGHT

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

20220002040608
CLOUD NEVER DROPS BELOW 70%
NO USABLE WINDOW FOR THIS TARGET TONIGHT

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

20220002040608
CLOUD NEVER DROPS BELOW 70%

Deep-sky visual is your current default.

A darker option

Kerry Dark Sky Reserve

1,326 km away · Natural-dark sky · 21.7–21.8 mag/arcsec²

3conditions tonight
See the trade-off →

The next week of nights

Tonight · 10 Oct
26
Poor

Cloud or fog is the strongest score limit at the best sampled time.

MOON 0%
Tomorrow · 11 Oct
72
Good
MOON 2%
22:00–07:00
Monday · 12 Oct
77
Excellent
MOON 6%
21:00–07:00
Tuesday · 13 Oct
54
Fair
MOON 12%
02:00–03:00
Wednesday · 14 Oct
54
Fair
MOON 19%
02:00–03:00
Thursday · 15 Oct
3
Not worth it

Cloud or fog is the strongest score limit at the best sampled time.

MOON 27%
Friday · 16 Oct
4
Not worth it

Cloud or fog is the strongest score limit at the best sampled time.

MOON 35%

Open a night for its forecast times. Later forecasts may have wider time steps; missing hours are not interpolated.

Tonight · 10 Oct · forecast times
Sky state
Shaded = daylight and twilight  ·  unshaded = astronomical dark
1
2
17
5
21
26
25
17
16
5
1
Score
Low cloud
100%
98%
95%
70%
91%
50%
29%
23%
38%
49%
86%
87%
77%
Mid cloud
5%
1%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
High cloud
0%
3%
8%
0%
0%
59%
70%
84%
94%
66%
45%
82%
98%
Transparency
0.18
0.14
0.15
0.19
0.17
0.19
0.19
0.19
0.17
0.16
0.16
0.17
0.18
Seeing
0.55
0.59
0.64
0.65
0.67
0.68
0.72
0.75
0.79
0.81
0.82
0.84
0.90
Moon clear
down
down
down
down
down
down
down
down
down
down
down
down
down
20
21
22
23
00
01
02
03
04
05
06
07
08

Cloud tracks show clear sky — a longer bar is better. The figure inside each track is the raw measurement.

Tomorrow · 11 Oct · forecast times
Sky state
Shaded = daylight and twilight  ·  unshaded = astronomical dark
9
34
62
65
66
66
61
67
68
70
72
29
Score
Low cloud
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
Mid cloud
75%
68%
58%
10%
3%
2%
0%
0%
1%
2%
1%
0%
0%
0%
High cloud
76%
2%
0%
0%
0%
0%
6%
21%
2%
0%
1%
0%
0%
6%
Transparency
0.42
0.31
0.30
0.26
0.24
0.24
0.28
0.31
0.31
0.33
0.38
0.42
0.43
0.44
Seeing
0.85
0.89
0.89
0.89
0.86
0.87
0.86
0.82
0.78
0.78
0.76
0.75
0.75
0.78
Moon clear
2%
down
down
down
down
down
down
down
down
down
down
down
down
down
19
20
21
22
23
00
01
02
03
04
05
06
07
08

Cloud tracks show clear sky — a longer bar is better. The figure inside each track is the raw measurement.

Monday · 12 Oct · forecast times
Sky state
Shaded = daylight and twilight  ·  unshaded = astronomical dark
21
68
68
65
41
41
48
56
45
65
77
33
Score
Low cloud
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
Mid cloud
0%
0%
0%
0%
0%
1%
4%
7%
13%
14%
9%
1%
1%
2%
High cloud
38%
34%
16%
13%
21%
83%
84%
65%
35%
62%
16%
0%
0%
0%
Transparency
0.50
0.40
0.35
0.33
0.36
0.42
0.47
0.49
0.49
0.47
0.46
0.46
0.47
0.49
Seeing
1.00
1.00
1.00
1.00
0.99
0.98
0.98
0.96
0.96
0.95
0.95
0.96
0.99
1.00
Moon clear
5%
down
down
down
down
down
down
down
down
down
down
down
down
down
19
20
21
22
23
00
01
02
03
04
05
06
07
08

Cloud tracks show clear sky — a longer bar is better. The figure inside each track is the raw measurement.

Tuesday · 13 Oct · forecast times
Sky state
Shaded = daylight and twilight  ·  unshaded = astronomical dark
28
54
Score
Low cloud
0%
0%
1%
0%
Mid cloud
0%
1%
0%
0%
High cloud
48%
2%
40%
39%
Transparency
0.96
0.45
0.28
0.13
Seeing
1.00
1.00
0.94
0.98
Moon clear
9%
10%
down
down
14
20
02
08

Cloud tracks show clear sky — a longer bar is better. The figure inside each track is the raw measurement.

Wednesday · 14 Oct · forecast times
Sky state
Shaded = daylight and twilight  ·  unshaded = astronomical dark
16
54
Score
Low cloud
16%
17%
16%
100%
Mid cloud
0%
0%
0%
0%
High cloud
75%
45%
0%
0%
Transparency
0.75
0.16
0.12
0.10
Seeing
1.00
1.00
1.00
1.00
Moon clear
15%
17%
down
down
14
20
02
08

Cloud tracks show clear sky — a longer bar is better. The figure inside each track is the raw measurement.

Thursday · 15 Oct · forecast times
Sky state
Shaded = daylight and twilight  ·  unshaded = astronomical dark
17
3
Score
Low cloud
15%
35%
91%
97%
Mid cloud
0%
0%
0%
0%
High cloud
0%
0%
74%
2%
Transparency
0.59
0.11
0.10
0.10
Seeing
0.89
1.00
1.00
0.95
Moon clear
22%
24%
down
down
14
20
02
08

Cloud tracks show clear sky — a longer bar is better. The figure inside each track is the raw measurement.

Friday · 16 Oct · forecast times
Sky state
Shaded = daylight and twilight  ·  unshaded = astronomical dark
9
4
Score
Low cloud
1%
60%
35%
58%
Mid cloud
0%
0%
96%
9%
High cloud
0%
29%
66%
43%
Transparency
0.71
0.16
0.24
0.37
Seeing
0.77
0.76
0.72
0.72
Moon clear
down
33%
down
down
14
20
02
08

Cloud tracks show clear sky — a longer bar is better. The figure inside each track is the raw measurement.

About this forecast

Exact-coordinate weather, sky geometry and site context.

Full method →
Sources and scoring details openclose

Conditions for Cévennes National Park, Occitanie, France 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 astronomical twilight. Site darkness is shown separately, then used only where artificial skyglow physically changes moon contrast, haze scattering, visual limits and target suitability.