Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 19

Waning Crescent 0%

08:10

16:41

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

Sun - Rise: 07:30, Set: 16:40, Transit: 12:05. Moon - Rise: 08:10, Set: 16:41. Civil Dark: 17:11 - 06:59. Nautical Dark: 17:46 - 06:24. Astro Dark: 18:19 - 05:50

Total Clouds (% Sky Obscured)

76
80
83
75
89
94
60
48
50
45
99
98
92
93
47
82
90
91
99
93
96
100
69
59

Low Clouds (% Sky Obscured)

0
2
0
2
2
3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

76
80
83
66
53
25
25
48
50
18
49
36
5
8
39
41
45
50
65
52
51
51
32
31

High Clouds (% Sky Obscured)

76
79
19
12
75
94
39
7
19
28
99
98
92
93
33
52
49
26
99
93
96
100
50
8

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
5
13
54
56
52
39
24
14
2
2
2
2
2
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 (%)

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 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)

4
4
4
3
2
4
4
4
4
3
4
4
4
4
4
4
3
2
2
2
2
3
3
3

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

10
8
7
7
7
6
7
6
5
4
5
4
4
5
4
5
6
9
10
11
12
11
10
10

Dew Point (°C)

7
6
6
6
6
6
5
3
2
1
1
1
1
0
-0
0
0
0
1
2
1
1
3
4

Relative Humidity (%)

78
82
84
85
87
87
85
79
74
70
70
68
68
68
68
68
64
55
51
49
46
46
54
62

Pressure (mb)

1022
1023
1023
1022
1022
1022
1022
1021
1020
1020
1020
1019
1019
1018
1018
1018
1018
1018
1017
1016
1016
1015
1015
1015

Ozone (du)

334
333
335
337
336
335
335
335
337
339
341
337
327
319
313
311
312
317
326
330
332
329
330
334

Saturday 20

New Moon 2%

08:56

No Set

17 Bad
18 Bad
19 Bad
20 Bad
21 OK
22 OK
23 OK
00 Bad
01 OK
02 OK
03 OK
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

Sun - Rise: 07:31, Set: 16:40, Transit: 12:05. Moon - Rise: 08:56, Set: No Set. Civil Dark: 17:11 - 06:59. Nautical Dark: 17:46 - 06:24. Astro Dark: 18:20 - 05:51

Total Clouds (% Sky Obscured)

73
75
57
68
45
24
21
62
37
26
30
59
75
75
82
82
77
86
81
84
87
91
77
85

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
2
2
2
3
3
0
0
0
0
0
0
0
0
0
2
2

Medium Clouds (% Sky Obscured)

35
39
57
59
45
5
3
6
8
4
4
16
23
22
27
27
27
32
33
19
28
36
52
28

High Clouds (% Sky Obscured)

8
9
34
57
24
18
12
51
6
7
5
5
6
8
21
23
14
42
51
57
77
91
59
71

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
2
2
3
2
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 (%)

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 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)

2
2
3
3
3
3
3
3
3
3
3
3
3
4
4
4
4
3
3
3
4
4
4
4

Chance of Frost

Temperature (°C)

9
8
7
7
6
6
6
5
5
5
5
5
5
4
5
5
6
8
10
11
12
12
12
11

Feels Like (°C)

8
7
6
5
4
4
4
3
3
3
3
3
3
2
3
2
3
6
8
10
10
11
11
10

Dew Point (°C)

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

Relative Humidity (%)

69
74
75
75
72
72
71
72
72
72
73
73
73
75
75
73
70
63
57
54
53
53
56
67

Pressure (mb)

1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1014
1014
1014
1014
1014
1015
1014
1014
1013
1012
1012
1012
1012

Ozone (du)

337
338
339
337
330
328
322
319
319
318
319
319
314
312
311
312
313
313
313
310
306
303
302
303

Sunday 21

Waxing Crescent 6%

09:34

17:41

17 Bad
18 Bad
19 Bad
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

Sun - Rise: 07:31, Set: 16:41, Transit: 12:06. Moon - Rise: 09:34, Set: 17:41. Civil Dark: 17:12 - 07:00. Nautical Dark: 17:47 - 06:25. Astro Dark: 18:20 - 05:51

Total Clouds (% Sky Obscured)

94
94
100
100
100
100
100
98
93
88
96
92
85
97
98
100
99
97
97
92
88
83
77
85

Low Clouds (% Sky Obscured)

6
16
30
30
30
35
40
34
9
10
28
5
20
34
45
36
23
32
39
49
50
36
43
52

Medium Clouds (% Sky Obscured)

12
11
10
36
68
67
67
76
81
64
59
42
41
71
65
64
67
92
84
77
67
71
77
80

High Clouds (% Sky Obscured)

94
94
100
100
100
100
100
92
77
63
85
80
61
50
88
100
81
41
29
5
12
18
24
50

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 (%)

0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
2
4
7
10
16
19
22
21

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

8
6
5
5
4
4
4
4
3
3
3
3
3
3
3
4
5
7
9
10
10
9
9
9

Dew Point (°C)

5
4
2
1
0
0
1
-0
0
1
1
1
1
1
1
1
2
3
4
4
4
3
4
6

Relative Humidity (%)

73
74
70
69
66
66
67
67
70
71
71
71
72
73
74
72
69
62
59
58
57
57
64
71

Pressure (mb)

1012
1012
1012
1013
1013
1012
1012
1012
1012
1012
1011
1011
1011
1011
1011
1011
1011
1010
1010
1009
1009
1008
1008
1008

Ozone (du)

300
295
294
294
294
294
295
297
299
301
302
302
302
305
310
313
317
317
316
319
321
324
332
348

Monday 22

Waxing Crescent 12%

10:06

18:47

17 Bad
18 Bad
19 Bad
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

Sun - Rise: 07:32, Set: 16:41, Transit: 12:06. Moon - Rise: 10:06, Set: 18:47. Civil Dark: 17:12 - 07:00. Nautical Dark: 17:47 - 06:25. Astro Dark: 18:21 - 05:51

Total Clouds (% Sky Obscured)

93
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
99
98
88
100
100

Low Clouds (% Sky Obscured)

55
36
39
60
79
79
67
56
67
67
88
85
84
76
71
62
56
55
33
28
32
45
51
55

Medium Clouds (% Sky Obscured)

80
81
89
67
100
99
100
92
63
64
97
73
79
100
100
100
100
100
98
92
88
72
78
48

High Clouds (% Sky Obscured)

74
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
99
66
74
46
100
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
8
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
Light Rain
None
Very Light Rain
Very Light Rain
None
None
None
None
None
None
None
Very Light Rain
None

Precipitation Probability (%)

19
11
16
16
9
22
30
44
61
76
81
95
91
90
84
55
49
45
28
27
56
66
75
73

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0.4
0
0.3
0.3
0
0
0
0
0
0
0
0.3
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

72
69
72
73
73
72
70
69
72
70
72
76
81
81
84
87
87
82
82
76
68
69
72
80

Pressure (mb)

1008
1008
1008
1008
1008
1008
1008
1007
1007
1006
1006
1006
1006
1005
1005
1005
1005
1005
1005
1004
1003
1003
1003
1003

Ozone (du)

362
368
375
371
378
383
389
394
391
393
394
394
394
397
397
399
401
404
407
407
409
410
411
410

Tuesday 23

Waxing Crescent 19%

10:32

19:54

17 Bad
18 Bad
19 Bad
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

Sun - Rise: 07:32, Set: 16:42, Transit: 12:07. Moon - Rise: 10:32, Set: 19:54. Civil Dark: 17:13 - 07:01. Nautical Dark: 17:48 - 06:26. Astro Dark: 18:22 - 05:52

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
99
99
80
90
94
88
83
78
84
90
95
82

Low Clouds (% Sky Obscured)

50
44
61
80
100
92
82
65
76
76
65
61
53
49
33
26
20
28
37
49
50
51
52
49

Medium Clouds (% Sky Obscured)

75
99
97
100
99
99
100
96
100
95
94
33
71
99
80
79
71
69
66
62
72
82
92
73

High Clouds (% Sky Obscured)

100
100
100
100
28
35
100
100
100
100
100
96
90
85
80
90
89
73
56
39
35
31
27
18

ISS Passover

Visibility (miles)

9
9
9
4
3
3
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

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

Precipitation Probability (%)

79
83
95
95
95
95
95
95
95
83
45
44
43
28
14
14
9
25
31
35
49
56
68
63

Precipitation Amount (mm)

0.2
0.3
0.3
0.6
0.4
0.8
0.8
1.1
0.7
0.6
0
0
0
0
0
0
0
0
0
0
0
0
0.4
0.3

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

84
84
87
90
95
96
95
94
94
93
93
91
90
86
87
82
77
74
73
74
74
77
79
81

Pressure (mb)

1002
1002
1002
1002
1002
1002
1002
1002
1002
1003
1003
1003
1003
1004
1004
1005
1005
1006
1006
1006
1006
1006
1006
1006

Ozone (du)

408
409
409
406
408
408
405
405
401
398
398
401
403
405
408
410
412
414
414
414
414
414
414
414

Wednesday 24

Waxing Crescent 28%

10:55

21:02

17 Bad
18 Bad
19 Bad
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

Sun - Rise: 07:33, Set: 16:42, Transit: 12:07. Moon - Rise: 10:55, Set: 21:02. Civil Dark: 17:13 - 07:01. Nautical Dark: 17:48 - 06:26. Astro Dark: 18:22 - 05:52

Total Clouds (% Sky Obscured)

67
56
47
44
41
60
79
98
85
76
74
76
77
76
78
80
79
84
91
100
96
88
80
83

Low Clouds (% Sky Obscured)

49
49
41
37
41
41
53
49
46
35
32
48
60
71
78
80
79
80
80
77
71
59
52
49

Medium Clouds (% Sky Obscured)

53
33
23
13
8
38
67
97
79
61
46
46
47
44
47
46
45
61
80
100
88
74
59
69

High Clouds (% Sky Obscured)

9
5
5
15
25
36
42
59
55
51
46
34
22
10
17
23
30
51
72
94
84
75
66
50

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

Very Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
Very Light Rain
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
Very Light Rain

Precipitation Probability (%)

67
78
78
77
74
83
87
90
83
76
68
84
95
95
95
95
95
95
95
95
95
93
77
70

Precipitation Amount (mm)

0.3
0.5
0.5
0.4
0.3
0.5
0.5
0.6
0.4
0.3
0.2
0.5
0.7
1
1.1
1.3
1.4
1.2
1
1
0.8
0.6
0.3
0.2

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

82
84
85
85
85
83
82
82
82
81
81
81
80
83
86
79
75
70
69
68
65
68
69
72

Pressure (mb)

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

Ozone (du)

415
416
417
416
416
415
417
419
420
421
422
423
423
422
422
421
420
419
417
414
412
411
411
411

Thursday 25

Waxing Crescent 26%

11:17

22:10

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

Sun - Rise: 07:33, Set: 16:43, Transit: 12:08. Moon - Rise: 11:17, Set: 22:10. Civil Dark: 17:14 - 07:01. Nautical Dark: 17:49 - 06:26. Astro Dark: 18:23 - 05:53

Total Clouds (% Sky Obscured)

88
92
94
96
99
77
56
38
51
62
67
63
59
54
64
74
84
88
94
97

Low Clouds (% Sky Obscured)

43
37
35
35
33
33
33
30
33
36
31
25
24
23
16
14
8
10
13
15

Medium Clouds (% Sky Obscured)

79
89
92
95
98
74
50
29
33
36
36
29
17
10
28
47
65
74
83
92

High Clouds (% Sky Obscured)

34
19
15
11
2
3
4
9
17
26
25
30
30
40
51
61
67
81
87
94

ISS Passover

Visibility (miles)

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

Precipitation Type

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

Precipitation Probability (%)

62
48
44
36
21
26
25
16
26
26
17
25
22
11
13
12
6
16
19
13

Precipitation Amount (mm)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

8
8
10
5
4
5
5
5
5
5
5
5
5
4
4
4
4
4
4
3

Dew Point (°C)

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

Relative Humidity (%)

75
78
82
81
81
79
79
79
79
79
78
76
76
76
76
71
66
63
61
59

Pressure (mb)

1008
1008
1008
1008
1009
1009
1009
1009
1009
1009
1009
1009
1008
1008
1008
1008
1009
1009
1008
1008

Ozone (du)

409
407
406
403
401
398
398
397
396
396
395
394
394
394
394
392
391
389
386
382

Forecast for Via Case Sparse, Province of Rome, Italy (41.66,13.10)

Generated: 19/12/25 17:20:11. Forecast: 19/12/25 to 25/12/25. Timezone: UTC+1.00