Clear Outside v1.0 - International Weather Forecasts For Astronomers

Wednesday 31

Waxing Gibbous 90%

13:35

05:38

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

Sun - Rise: 07:34, Set: 16:47, Transit: 12:10. Moon - Rise: 13:35, Set: 05:38. Civil Dark: 17:18 - 07:03. Nautical Dark: 17:53 - 06:28. Astro Dark: 18:27 - 05:54

Total Clouds (% Sky Obscured)

27
27
27
41
64
48
11
14
10
7
4
1
1
1
0
0
0
0
0
0
0
1
1
1

Low Clouds (% Sky Obscured)

27
27
27
41
64
48
11
14
10
7
4
1
1
1
0
0
0
0
0
0
0
1
1
1

Medium Clouds (% Sky Obscured)

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

High Clouds (% Sky Obscured)

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

ISS Passover

Visibility (miles)

9
9
9
9
5
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
13
15
12
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)

10
8
7
7
5
5
5
5
5
4
4
5
5
5
5
5
5
5
5
4
4
4
4
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-4
-5
-5
-4
-1
1
0
-2
-1
-1
-3
-4
-5
-5
-5
-5
-6
-6
-7
-7
-6
-7
-8
-7

Relative Humidity (%)

64
63
60
57
62
69
67
58
59
62
67
69
70
70
70
70
68
68
68
68
68
68
67
68

Pressure (mb)

1017
1017
1017
1018
1018
1018
1018
1017
1017
1018
1018
1019
1020
1021
1021
1022
1022
1022
1022
1022
1022
1022
1022
1022

Ozone (du)

301
301
302
304
304
299
295
295
296
299
300
300
309
315
323
322
322
326
329
331
333
335
335
332

Thursday 1

Waxing Gibbous 96%

14:25

06:52

07 Good
08 Good
09 Good
10 Good
11 Good
12 OK
13 OK
14 Bad
15 Bad
16 Bad
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

Sun - Rise: 07:34, Set: 16:48, Transit: 12:11. Moon - Rise: 14:25, Set: 06:52. Civil Dark: 17:19 - 07:03. Nautical Dark: 17:54 - 06:28. Astro Dark: 18:28 - 05:54

Total Clouds (% Sky Obscured)

1
0
0
1
1
32
42
58
60
84
83
67
84
81
90
92
89
100
100
95
90
72
60
65

Low Clouds (% Sky Obscured)

1
0
0
1
1
24
19
25
38
47
40
55
45
79
85
89
88
84
79
82
85
60
60
65

Medium Clouds (% Sky Obscured)

0
0
0
0
0
12
15
19
20
26
26
17
27
22
28
18
27
40
29
27
18
14
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
83
100
66
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
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
1
8
9
16
10
36
29
20
48
49
42
42
41
41
28
16

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-7
-7
-8
-6
-6
-5
-4
-3
-2
-1
-0
-0
-2
-2
-2
1
2
3
3
3
3
3
3
2

Relative Humidity (%)

68
67
61
56
52
51
52
53
57
67
75
73
69
69
70
75
79
85
85
88
89
91
94
93

Pressure (mb)

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

Ozone (du)

330
333
333
333
331
331
330
328
326
324
326
327
329
328
326
326
329
330
329
332
333
335
334
336

Friday 2

Waxing Gibbous 100%

15:29

No Set

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
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad

Sun - Rise: 07:34, Set: 16:49, Transit: 12:11. Moon - Rise: 15:29, Set: No Set. Civil Dark: 17:20 - 07:03. Nautical Dark: 17:55 - 06:28. Astro Dark: 18:28 - 05:54

Total Clouds (% Sky Obscured)

70
70
82
80
81
62
81
72
73
81
88
76
84
90
100
94
84
88
86
84
81
85
90
93

Low Clouds (% Sky Obscured)

61
64
62
53
55
44
45
48
44
35
53
68
83
87
79
94
84
86
84
82
78
75
75
75

Medium Clouds (% Sky Obscured)

10
3
17
13
16
6
26
22
28
40
24
31
72
90
100
75
36
33
80
77
69
25
35
88

High Clouds (% Sky Obscured)

5
0
5
5
0
4
4
5
1
4
0
0
3
4
27
5
0
13
11
8
5
4
0
4

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
6
6
9
9
8
3
1
1
1
2
2

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
37
46
46
46
46
46
46
46
46
46
46
46
46

Precipitation Type

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

Precipitation Probability (%)

20
21
26
30
31
38
32
32
35
39
17
29
41
80
54
45
47
51
47
49
42
41
46
55

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0.6
0
0
0
0
0
0
0
0
0
0.2

Wind Speed/Direction (mph)

6
6
6
6
6
7
9
9
9
9
7
7
6
7
7
8
9
9
9
10
10
10
11
11

Chance of Frost

Temperature (°C)

3
2
4
6
7
8
9
10
10
9
8
8
7
6
6
6
6
6
7
6
6
7
7
6

Feels Like (°C)

1
0
2
4
5
6
7
7
8
8
6
6
5
4
4
5
5
5
5
5
5
5
6
5

Dew Point (°C)

1
1
2
3
2
3
4
4
5
6
6
6
6
5
5
5
6
6
6
6
6
6
7
6

Relative Humidity (%)

91
91
86
80
72
70
68
68
72
81
88
90
90
88
93
94
96
98
98
98
98
98
98
98

Pressure (mb)

1015
1015
1015
1015
1014
1013
1012
1011
1011
1011
1011
1011
1011
1010
1010
1009
1009
1009
1008
1008
1007
1007
1007
1007

Ozone (du)

336
333
330
325
321
318
313
309
306
305
310
317
317
319
319
321
324
321
316
313
313
310
309
307

Saturday 3

Full Moon 99%

16:44

07:54

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
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad

Sun - Rise: 07:34, Set: 16:50, Transit: 12:12. Moon - Rise: 16:44, Set: 07:54. Civil Dark: 17:21 - 07:03. Nautical Dark: 17:55 - 06:28. Astro Dark: 18:29 - 05:55

Total Clouds (% Sky Obscured)

92
91
90
93
95
97
96
96
95
96
97
95
81
72
63
77
88
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

76
75
76
79
81
84
85
85
86
82
80
57
54
53
57
71
84
97
95
89
83
77
73
69

Medium Clouds (% Sky Obscured)

74
91
86
92
95
97
93
90
85
75
78
60
51
48
50
43
62
94
100
100
100
100
100
100

High Clouds (% Sky Obscured)

5
5
5
6
8
9
36
59
45
39
31
30
21
24
63
24
64
100
99
99
98
99
100
100

ISS Passover

Visibility (miles)

2
1
1
8
4
4
3
4
4
9
9
9
9
8
8
8
8
4
3
4
1
0
0
1

Fog (%)

46
46
46
46
46
46
46
46
46
46
46
46
46
46
46
46
46
46
46
46
46
46
46
46

Precipitation Type

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

Precipitation Probability (%)

60
60
76
79
84
86
79
72
68
70
51
41
57
61
64
71
77
87
95
95
95
95
95
95

Precipitation Amount (mm)

0.2
0.3
0.5
0.4
0.4
0.5
0.6
0.4
0.3
0.3
0
0
0
0
0.3
0.4
0.5
0.6
0.7
0.9
1.5
1.4
1.5
1

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

6
7
8
9
9
10
11
11
11
11
9
9
8
8
8
8
9
9
9
8
9
9
8
8

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

98
98
96
88
82
84
85
84
84
85
91
93
93
93
94
93
93
95
95
98
98
100
100
98

Pressure (mb)

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

Ozone (du)

310
313
315
318
321
321
322
323
322
322
324
329
329
329
325
322
320
317
316
312
313
317
319
321

Sunday 4

Waning Gibbous 96%

18:03

08:42

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
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad

Sun - Rise: 07:34, Set: 16:50, Transit: 12:12. Moon - Rise: 18:03, Set: 08:42. Civil Dark: 17:22 - 07:03. Nautical Dark: 17:56 - 06:28. Astro Dark: 18:30 - 05:55

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)

66
65
64
72
83
91
82
73
65
65
68
68
74
83
92
87
81
73
71
68
65
68
65
63

Medium Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
99
99
91
83
75

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
99
99
98
67
36
7

ISS Passover

Visibility (miles)

0
1
3
2
1
0
0
0
2
4
5
8
9
8
6
5
4
4
3
3
3
3
3
2

Fog (%)

46
46
46
46
46
46
46
46
46
46
46
46
46
46
46
46
46
46
46
46
46
46
46
46

Precipitation Type

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
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

Precipitation Probability (%)

95
95
95
95
95
95
95
95
95
95
95
87
95
95
95
95
95
95
95
95
95
94
81
70

Precipitation Amount (mm)

0.8
0.7
0.7
1
1.4
0.9
1
0.8
0.8
0.9
0.5
0.3
0.7
0.8
0.5
0.9
1
0.9
0.9
0.9
0.8
0.6
0.4
0.3

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

8
7
8
8
8
9
9
8
9
8
7
8
8
8
8
8
8
8
8
7
8
7
8
8

Dew Point (°C)

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

Relative Humidity (%)

98
96
98
96
96
98
100
98
98
100
98
98
98
98
98
98
98
98
98
96
96
96
96
96

Pressure (mb)

1006
1006
1006
1007
1007
1006
1006
1006
1006
1006
1006
1007
1007
1007
1007
1007
1007
1007
1007
1007
1007
1007
1007
1007

Ozone (du)

324
325
327
329
331
334
338
339
338
336
333
333
334
332
331
329
330
330
331
330
330
329
329
328

Monday 5

Waning Gibbous 91%

19:21

09:18

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
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad

Sun - Rise: 07:34, Set: 16:51, Transit: 12:13. Moon - Rise: 19:21, Set: 09:18. Civil Dark: 17:22 - 07:03. Nautical Dark: 17:57 - 06:28. Astro Dark: 18:31 - 05:55

Total Clouds (% Sky Obscured)

100
100
100
97
95
92
94
97
98
97
95
94
93
91
90
93
97
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

76
86
89
84
69
68
71
78
81
81
84
88
83
80
79
81
83
88
89
93
95
95
96
97

Medium Clouds (% Sky Obscured)

52
28
10
10
10
10
18
21
28
26
23
18
27
32
37
47
58
70
80
89
99
100
100
100

High Clouds (% Sky Obscured)

17
26
29
35
46
54
58
63
68
60
52
44
37
30
23
41
58
77
75
74
73
80
87
95

ISS Passover

Visibility (miles)

2
4
7
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
9
9
9
8
6

Fog (%)

46
46
46
46
46
46
46
46
46
46
46
46
46
46
46
46
46
46
46
46
46
46
46
46

Precipitation Type

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

Precipitation Probability (%)

61
47
25
27
28
28
33
37
43
42
37
35
35
30
23
29
29
32
42
51
55
66
78
94

Precipitation Amount (mm)

0.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.4
0.7

Wind Speed/Direction (mph)

5
5
5
5
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

7
7
7
6
6
6
6
7
7
7
7
7
7
6
6
6
6
6
6
6
6
6
6
6

Relative Humidity (%)

96
94
93
90
85
82
81
84
85
88
90
88
90
90
90
90
90
90
88
90
91
93
94
94

Pressure (mb)

1008
1008
1008
1009
1008
1008
1008
1008
1008
1008
1008
1009
1009
1010
1010
1010
1010
1010
1010
1011
1011
1011
1011
1011

Ozone (du)

327
327
328
328
328
327
326
324
322
319
319
318
318
319
320
321
321
321
322
322
322
323
327
331

Tuesday 6

Waning Gibbous 83%

20:35

09:47

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
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad

Sun - Rise: 07:34, Set: 16:52, Transit: 12:13. Moon - Rise: 20:35, Set: 09:47. Civil Dark: 17:23 - 07:03. Nautical Dark: 17:58 - 06:28. Astro Dark: 18:32 - 05:55

Total Clouds (% Sky Obscured)

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

Low Clouds (% Sky Obscured)

98
99
100
99
97
95
93
91
92
95
98
100
100
100
100
100
100
100

Medium Clouds (% Sky Obscured)

100
100
100
100
99
99
96
94
91
94
97
100
100
100
100
100
100
100

High Clouds (% Sky Obscured)

95
95
100
100
100
96
74
61
53
70
85
100
100
100
100
100
100
100

ISS Passover

Visibility (miles)

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

Fog (%)

46
46
46
46
46
46
46
46
46
46
46
46
46
46
46
46
46
46

Precipitation Type

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

Precipitation Probability (%)

93
91
90
91
89
87
72
57
53
90
95
95
95
95
95
95
95
95

Precipitation Amount (mm)

0.6
0.6
0.6
0.6
0.6
0.5
0.3
0
0
0.6
0.8
1
1.8
1.8
1.8
2.3
2.1
2.1

Wind Speed/Direction (mph)

4
4
4
4
4
4
5
5
5
4
5
6
6
6
5
5
5
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

96
94
94
95
95
95
93
91
90
90
90
91
91
91
91
91
91
93

Pressure (mb)

1012
1012
1012
1013
1012
1012
1012
1012
1012
1012
1012
1012
1013
1013
1013
1013
1013
1013

Ozone (du)

335
334
333
332
332
332
331
340
349
357
360
363
366
367
368
368
370
372

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

Generated: 31/12/25 07:34:27. Forecast: 31/12/25 to 06/01/26. Timezone: UTC+1.00