Clear Outside v1.0 - International Weather Forecasts For Astronomers

Saturday 20

New Moon 2%

09:29

17:57

20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad

Sun - Rise: 08:01, Set: 16:57, Transit: 12:29. Moon - Rise: 09:29, Set: 17:57. Civil Dark: 17:29 - 07:28. Nautical Dark: 18:06 - 06:52. Astro Dark: 18:41 - 06:17

Total Clouds (% Sky Obscured)

94
95
96
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
99
100
100
100
100
100

Low Clouds (% Sky Obscured)

83
92
91
89
76
75
82
59
89
88
82
83
84
81
73
68
68
72
66
39
71
100
100
100

Medium Clouds (% Sky Obscured)

94
95
96
100
97
100
100
99
100
99
100
100
100
100
100
100
99
100
98
99
100
100
100
100

High Clouds (% Sky Obscured)

68
95
96
100
100
100
100
100
100
100
100
100
100
100
100
100
100
89
77
99
57
70
79
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
8
7
8
9
9
9
9
9
8
7
5
6
5
3
3
3

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

4
3
2
45
27
24
29
32
38
43
60
72
69
60
57
57
65
76
82
95
95
95
95
95

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.4
0.4
0.5
0.9
1.5
2.1
2.2

Wind Speed/Direction (mph)

3
3
3
2
2
2
2
1
1
1
1
1
1
1
1
1
0
2
3
3
3
3
4
5

Chance of Frost

Temperature (°C)

11
11
12
12
12
12
11
11
11
11
11
11
11
11
12
13
13
14
13
13
12
12
11
11

Feels Like (°C)

11
11
11
12
12
11
11
10
10
9
10
10
10
10
10
11
12
12
11
11
11
9
9
8

Dew Point (°C)

9
9
9
10
10
9
9
9
9
9
9
9
9
9
9
9
10
10
10
10
10
9
9
8

Relative Humidity (%)

83
83
83
86
86
86
87
86
87
87
87
86
86
84
84
80
79
78
79
80
83
86
87
85

Pressure (mb)

1015
1015
1015
1015
1014
1014
1014
1014
1013
1013
1013
1013
1013
1012
1012
1012
1011
1010
1010
1010
1010
1010
1010
1010

Ozone (du)

302
301
302
301
301
299
298
300
301
302
302
302
296
289
288
288
289
289
288
289
289
289
291
294

Sunday 21

Waxing Crescent 6%

10:06

19:04

20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad

Sun - Rise: 08:02, Set: 16:57, Transit: 12:29. Moon - Rise: 10:06, Set: 19:04. Civil Dark: 17:30 - 07:29. Nautical Dark: 18:06 - 06:53. Astro Dark: 18:41 - 06:18

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

100
100
100
88
95
91
100
100
100
100
100
100
90
91
92
94
66
91
88
100
100
93
94
100

Medium Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
95
100
99
100
84
98
100
100
100
100
100
100
100
100

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

ISS Passover

Visibility (miles)

3
4
7
5
7
6
3
4
2
3
6
9
4
9
6
9
6
9
6
8
6
5
4
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Moderate Rain
Moderate Rain
Moderate Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
None
Very Light Rain
None
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

95
95
95
95
95
95
95
95
95
95
95
95
95
95
76
86
84
93
95
95
95
95
95
95

Precipitation Amount (mm)

2.2
1.8
1.8
1.5
1
0.9
2.7
3.1
4
2.1
0.8
1.4
1
0.3
0
0.2
0
0.3
0.9
0.7
0.9
1
0.8
0.5

Wind Speed/Direction (mph)

7
6
7
6
6
7
6
6
7
8
6
6
7
7
6
4
6
5
3
6
6
7
7
8

Chance of Frost

Temperature (°C)

10
10
10
10
10
10
10
10
9
9
9
9
9
9
10
10
11
11
11
10
10
10
9
9

Feels Like (°C)

6
7
6
7
6
6
7
6
6
6
6
6
6
6
6
7
7
8
9
7
6
6
5
5

Dew Point (°C)

8
8
7
7
7
7
7
7
7
7
7
6
7
6
6
7
7
7
7
7
7
6
6
6

Relative Humidity (%)

84
84
81
81
80
80
81
84
84
84
82
78
82
80
80
80
78
76
76
81
80
80
81
78

Pressure (mb)

1010
1010
1010
1009
1009
1009
1008
1008
1008
1007
1008
1008
1008
1008
1009
1009
1008
1007
1006
1007
1006
1006
1006
1006

Ozone (du)

296
303
304
304
307
309
320
329
329
327
334
337
343
355
368
377
378
375
374
382
384
386
391
397

Monday 22

Waxing Crescent 12%

10:36

No Set

20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad

Sun - Rise: 08:02, Set: 16:58, Transit: 12:30. Moon - Rise: 10:36, Set: No Set. Civil Dark: 17:30 - 07:29. Nautical Dark: 18:07 - 06:53. Astro Dark: 18:42 - 06:18

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

100
100
100
100
100
100
99
100
100
100
100
100
100
100
100
100
100
97
99
96
81
91
87
89

Medium Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
99

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

ISS Passover

Visibility (miles)

9
9
2
1
1
2
3
9
5
3
6
9
9
7
2
5
2
3
3
9
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

Light Rain
Moderate Rain
Moderate Rain
Moderate Rain
Moderate Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Moderate Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

95
95
95
95
95
95
95
95
95
95
95
95
95
95
95
95
95
95
95
95
83
80
76
79

Precipitation Amount (mm)

0.9
3.9
7.2
9.8
3.9
2.2
1.8
0.8
1.1
1.4
0.7
1.2
1.9
2.7
2.2
2.4
2.4
2.3
1.3
1.1
0.5
0.4
0.5
0.4

Wind Speed/Direction (mph)

8
7
7
8
8
10
9
10
9
7
7
6
5
6
4
6
4
7
8
6
6
5
5
5

Chance of Frost

Temperature (°C)

10
10
9
9
8
7
8
8
9
9
9
9
9
9
9
10
10
9
10
10
10
10
10
10

Feels Like (°C)

5
7
5
5
3
3
3
3
4
5
5
6
6
6
6
6
6
6
6
6
6
7
7
7

Dew Point (°C)

5
6
7
7
6
5
6
5
6
6
6
6
6
6
7
7
7
8
8
7
7
7
6
6

Relative Humidity (%)

74
76
85
88
91
88
85
81
81
82
81
80
80
78
85
82
85
88
87
81
80
81
78
77

Pressure (mb)

1006
1006
1006
1006
1006
1006
1006
1005
1004
1004
1004
1005
1005
1006
1007
1006
1006
1006
1006
1006
1006
1006
1006
1007

Ozone (du)

402
406
408
410
413
415
417
419
418
417
415
414
412
410
408
407
408
408
410
411
413
411
412
409

Tuesday 23

Waxing Crescent 19%

11:01

20:13

20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad

Sun - Rise: 08:02, Set: 16:58, Transit: 12:30. Moon - Rise: 11:01, Set: 20:13. Civil Dark: 17:31 - 07:30. Nautical Dark: 18:07 - 06:53. Astro Dark: 18:42 - 06:18

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
99
97
98
100
96
93
89
91
93
96
97
97
97
97
98
98
92

Low Clouds (% Sky Obscured)

84
100
99
89
77
88
57
35
34
36
66
76
67
73
82
66
67
13
68
76
75
64
69
50

Medium Clouds (% Sky Obscured)

100
100
100
100
100
100
100
98
92
63
81
87
89
79
90
91
92
93
90
96
96
95
95
92

High Clouds (% Sky Obscured)

100
100
100
100
100
100
80
73
83
98
100
81
62
43
44
49
54
55
56
57
61
44
40
22

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
Very Light Rain
None
None
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

80
82
85
80
83
73
62
51
50
46
41
39
31
17
17
15
9
11
12
8
13
14
26
38

Precipitation Amount (mm)

0.4
0.7
0.6
0.5
0.6
0.4
0.2
0.2
0
0
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

6
6
6
7
7
7
6
7
7
7
6
6
5
5
4
3
1
1
0
1
1
0
1
3

Chance of Frost

Temperature (°C)

10
9
9
9
9
9
10
9
9
9
9
9
9
9
10
12
13
13
13
13
12
11
11
11

Feels Like (°C)

7
6
6
6
6
6
7
6
6
5
6
6
5
6
7
10
11
12
12
12
11
10
10
9

Dew Point (°C)

6
6
6
5
5
5
6
6
5
5
5
5
5
5
5
6
6
6
6
7
6
6
7
7

Relative Humidity (%)

77
77
77
77
76
76
76
77
76
75
75
74
74
73
71
70
65
62
61
64
66
71
73
77

Pressure (mb)

1007
1007
1007
1007
1007
1007
1007
1007
1007
1007
1007
1007
1007
1007
1008
1008
1007
1007
1006
1006
1006
1006
1007
1007

Ozone (du)

407
406
406
406
404
402
401
396
397
397
395
396
396
397
396
395
393
392
391
388
385
384
386
386

Wednesday 24

Waxing Crescent 28%

11:22

21:23

20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad

Sun - Rise: 08:03, Set: 16:59, Transit: 12:31. Moon - Rise: 11:22, Set: 21:23. Civil Dark: 17:32 - 07:30. Nautical Dark: 18:08 - 06:54. Astro Dark: 18:43 - 06:19

Total Clouds (% Sky Obscured)

86
80
63
46
25
31
31
32
33
33
35
38
34
40
51
61
74
81
85
90
90
92
92
93

Low Clouds (% Sky Obscured)

37
25
35
35
25
31
31
32
33
33
35
38
34
40
51
61
70
70
70
75
80
80
80
80

Medium Clouds (% Sky Obscured)

86
80
63
46
25
31
31
32
33
33
35
38
34
40
51
61
74
81
85
88
84
80
76
74

High Clouds (% Sky Obscured)

10
0
2
4
4
2
4
4
4
3
3
4
11
22
35
47
65
61
56
47
35
13
7
5

ISS Passover

Visibility (miles)

9
8
5
7
3
2
3
9
9
9
9
7
6
5
4
4
3
3
5
7
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

Very Light Rain
Very Light Rain
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
None
None
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
None
None

Precipitation Probability (%)

51
57
65
77
95
95
83
69
63
54
71
82
86
83
95
95
95
95
94
74
71
57
18
28

Precipitation Amount (mm)

0.2
0.3
0.3
0.5
1.1
1.2
0.6
0.3
0
0
0.3
0.5
0.5
0.4
0.7
1.2
1.9
1.3
0.8
0.4
0.4
0.2
0
0

Wind Speed/Direction (mph)

3
4
5
5
5
5
5
7
8
9
4
5
5
6
6
5
4
5
5
4
4
4
5
6

Chance of Frost

Temperature (°C)

10
10
10
9
9
9
9
8
8
7
7
6
7
7
7
7
7
7
7
8
8
8
8
7

Feels Like (°C)

9
8
8
8
8
7
7
6
4
3
4
3
4
4
4
4
5
5
3
3
3
3
2
2

Dew Point (°C)

7
7
7
7
8
8
7
6
5
4
4
3
4
4
4
4
5
5
5
5
5
5
4
3

Relative Humidity (%)

78
82
84
87
90
93
91
87
81
79
79
79
79
79
78
81
85
88
85
82
78
78
75
75

Pressure (mb)

1008
1008
1009
1009
1009
1009
1010
1010
1011
1011
1011
1012
1011
1012
1012
1012
1012
1013
1013
1013
1013
1014
1015
1015

Ozone (du)

388
389
392
396
397
397
399
399
399
399
397
395
396
397
398
398
398
398
396
394
392
392
392
392

Thursday 25

Waxing Crescent 38%

11:42

22:32

20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 OK
04 OK
05 OK
06 OK
07 OK
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 OK
15 OK
16 OK
17 OK
18 OK
19 OK

Sun - Rise: 08:03, Set: 17:00, Transit: 12:31. Moon - Rise: 11:42, Set: 22:32. Civil Dark: 17:32 - 07:30. Nautical Dark: 18:09 - 06:54. Astro Dark: 18:44 - 06:19

Total Clouds (% Sky Obscured)

95
96
94
92
88
67
48
30
30
30
32
37
43
47
58
69
79
60
40
19
23
27
30
28

Low Clouds (% Sky Obscured)

81
81
65
50
34
27
16
7
5
3
2
1
1
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

72
70
76
82
87
61
34
8
8
9
10
20
33
43
54
64
74
51
27
3
2
1
0
0

High Clouds (% Sky Obscured)

3
1
1
2
2
2
2
3
2
2
1
1
1
1
1
1
1
2
2
2
2
2
2
2

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

24
9
14
14
11
11
9
4
6
6
4
9
9
6
12
12
8
15
13
6
9
7
4
7

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

6
6
6
6
6
5
6
7
7
7
7
7
6
6
5
2
1
1
2
2
3
3
6
8

Chance of Frost

Temperature (°C)

7
7
7
7
6
6
6
6
6
6
5
5
6
7
8
9
10
12
11
11
11
9
8
7

Feels Like (°C)

3
3
3
3
3
3
2
2
3
3
2
3
3
4
4
3
4
4
10
10
11
10
10
10

Dew Point (°C)

3
3
2
2
2
2
1
1
1
1
1
1
1
2
2
2
3
3
4
4
5
4
2
1

Relative Humidity (%)

74
74
72
74
72
72
72
72
72
72
71
72
70
69
66
62
58
54
59
63
68
68
68
67

Pressure (mb)

1016
1016
1016
1016
1016
1016
1017
1017
1017
1017
1017
1017
1017
1018
1018
1018
1017
1017
1017
1017
1017
1018
1018
1019

Ozone (du)

392
392
392
392
393
393
392
391
390
389
389
388
389
389
390
390
390
390
388
387
386
386
386
386

Friday 26

Waxing Crescent 49%

12:01

23:42

20 OK
21 OK
22 OK
23 OK
00 OK
01 OK
02 OK
03 OK
04 Bad
05 Bad
06 Bad
07 Bad
08 OK
09 OK
10 Bad
11 Bad
12 Bad

Sun - Rise: 08:03, Set: 17:00, Transit: 12:32. Moon - Rise: 12:01, Set: 23:42. Civil Dark: 17:33 - 07:31. Nautical Dark: 18:09 - 06:54. Astro Dark: 18:44 - 06:19

Total Clouds (% Sky Obscured)

25
20
20
19
21
25
30
36
47
58
68
52
38
26
46
66
84

Low Clouds (% Sky Obscured)

0
0
1
2
3
9
14
17
17
21
22
15
10
2
2
2
2

Medium Clouds (% Sky Obscured)

2
2
3
3
4
13
21
31
28
26
24
19
16
16
40
64
84

High Clouds (% Sky Obscured)

3
3
4
4
3
3
2
1
2
2
2
1
0
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

7
3
8
7
4
7
6
4
7
5
3
6
7
5
9
8
2

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

8
8
7
8
8
8
8
8
8
8
7
7
7
6
5
3
1

Chance of Frost

Temperature (°C)

7
6
6
6
6
5
6
6
6
6
6
6
6
7
8
9
11

Feels Like (°C)

5
5
4
4
4
4
3
3
3
3
2
3
3
3
3
4
4

Dew Point (°C)

1
1
0
0
0
-0
0
0
-0
-0
-0
-0
0
1
1
1
2

Relative Humidity (%)

67
67
67
66
67
67
67
67
66
66
66
66
65
63
61
57
53

Pressure (mb)

1019
1020
1020
1020
1020
1020
1020
1020
1020
1020
1021
1021
1021
1021
1022
1021
1021

Ozone (du)

388
390
391
390
389
388
387
387
387
387
387
387
388
388
388
385
382

Forecast for Nice, Alpes-Maritimes, France (43.71,7.26)

Generated: 20/12/25 20:24:13. Forecast: 20/12/25 to 26/12/25. Timezone: UTC+1.00