Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 15

Waning Crescent 19%

03:11

13:32

02 Good
03 OK
04 OK
05 OK
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
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad

Sun - Rise: 07:30, Set: 16:40, Transit: 12:05. Moon - Rise: 03:11, Set: 13:32. Civil Dark: 17:11 - 06:59. Nautical Dark: 17:46 - 06:24. Astro Dark: 18:20 - 05:50

Total Clouds (% Sky Obscured)

17
30
27
32
74
71
100
100
61
100
100
100
100
89
100
100
100
100
100
100
100
100
100
98

Low Clouds (% Sky Obscured)

17
20
23
26
22
22
16
9
0
0
14
13
0
0
0
0
0
0
9
4
0
0
0
2

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
30
44
46
46
99
90
94
100
94
100
100
100
96

High Clouds (% Sky Obscured)

0
0
3
6
28
10
100
100
44
100
100
100
100
31
100
100
45
100
100
100
100
100
100
81

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
2
8
0
0
13
2
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
1
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
3
3
2
4
6
3
4
4
5
5
4
5
4
6
5
5
5
4
4
4

Chance of Frost

Temperature (°C)

10
9
9
9
9
9
9
10
12
13
15
15
15
15
14
13
12
12
12
12
11
11
11
11

Feels Like (°C)

10
9
10
9
8
7
7
8
10
12
13
14
14
14
13
11
11
10
10
10
10
9
9
9

Dew Point (°C)

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

Relative Humidity (%)

78
80
80
80
81
80
80
76
70
69
67
68
66
65
70
76
79
81
79
77
77
73
71
67

Pressure (mb)

1027
1026
1026
1026
1026
1026
1027
1027
1026
1026
1026
1025
1024
1024
1024
1024
1024
1024
1024
1023
1023
1023
1022
1022

Ozone (du)

297
296
297
299
301
301
303
303
302
303
304
308
310
308
308
307
308
308
309
311
313
314
314
312

Tuesday 16

Waning Crescent 12%

04:14

13:57

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
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad

Sun - Rise: 07:31, Set: 16:40, Transit: 12:06. Moon - Rise: 04:14, Set: 13:57. Civil Dark: 17:11 - 07:00. Nautical Dark: 17:47 - 06:24. Astro Dark: 18:20 - 05:51

Total Clouds (% Sky Obscured)

99
84
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)

11
45
51
19
45
47
50
65
53
71
60
66
68
66
68
91
90
85
88
92
90
89
95
94

Medium Clouds (% Sky Obscured)

92
84
99
100
98
100
100
97
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

High Clouds (% Sky Obscured)

93
2
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
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
4
5
8
4

Fog (%)

1
1
2
1
1
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
Light Rain
Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
None
None
None
None
None
None
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

0
0
0
1
11
33
67
80
66
55
53
43
31
38
51
70
82
95
95
95
95
95
95
95

Precipitation Amount (mm)

0
0
0
0
0
0
0.4
0.6
0.3
0.3
0.2
0
0
0
0
0
0
0.6
0.5
1.1
1.1
1.2
1.4
1.7

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

66
66
63
61
58
56
57
58
54
53
53
49
48
52
58
58
56
59
62
65
76
80
80
81

Pressure (mb)

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

Ozone (du)

309
309
310
311
310
307
308
309
310
310
307
306
306
306
308
308
302
303
305
308
306
307
307
309

Wednesday 17

Waning Crescent 7%

05:18

14:27

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
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad

Sun - Rise: 07:32, Set: 16:40, Transit: 12:06. Moon - Rise: 05:18, Set: 14:27. Civil Dark: 17:12 - 07:00. Nautical Dark: 17:47 - 06:25. Astro Dark: 18:21 - 05:51

Total Clouds (% Sky Obscured)

100
100
100
100
80
58
55
59
70
63
66
50
58
37
52
79
64
80
92
100
99
98
98
99

Low Clouds (% Sky Obscured)

91
59
84
81
74
58
55
59
70
28
66
43
17
15
15
13
15
16
14
14
16
18
20
20

Medium Clouds (% Sky Obscured)

100
100
100
99
72
50
20
37
40
28
19
0
0
0
0
0
0
3
55
55
47
51
5
4

High Clouds (% Sky Obscured)

100
100
100
100
28
0
0
0
0
0
0
0
26
16
13
48
42
62
81
100
98
95
93
96

ISS Passover

Visibility (miles)

7
9
2
5
6
9
5
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
Very Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

95
95
95
95
78
73
60
40
37
40
34
23
14
12
10
7
8
13
12
6
23
17
3
18

Precipitation Amount (mm)

1.4
2
2
1
0.2
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

12
13
13
13
13
13
13
13
14
15
16
17
17
17
16
15
14
14
14
14
13
13
13
12

Feels Like (°C)

10
10
10
9
10
10
9
10
11
11
13
13
14
14
14
12
12
12
11
12
12
11
11
10

Dew Point (°C)

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

Relative Humidity (%)

86
80
83
89
87
87
87
83
80
80
75
72
69
72
75
80
79
80
79
79
79
80
80
80

Pressure (mb)

1018
1018
1018
1018
1019
1020
1020
1021
1022
1022
1022
1022
1022
1023
1023
1024
1024
1025
1025
1026
1026
1026
1027
1027

Ozone (du)

313
318
316
318
319
320
322
323
322
322
322
324
324
321
320
321
320
321
320
322
322
323
323
324

Thursday 18

Waning Crescent 3%

06:21

15:04

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 Good
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad

Sun - Rise: 07:32, Set: 16:41, Transit: 12:06. Moon - Rise: 06:21, Set: 15:04. Civil Dark: 17:12 - 07:01. Nautical Dark: 17:47 - 06:26. Astro Dark: 18:21 - 05:52

Total Clouds (% Sky Obscured)

99
100
96
92
88
92
96
100
94
89
84
82
82
82
68
60
10
66
84
94
100
99
99
99

Low Clouds (% Sky Obscured)

19
19
23
27
30
27
26
26
27
24
21
19
17
16
12
6
0
9
19
29
30
31
32
34

Medium Clouds (% Sky Obscured)

0
0
0
55
64
63
55
44
8
7
9
35
77
72
19
12
1
0
0
0
0
0
0
6

High Clouds (% Sky Obscured)

98
100
86
72
60
74
87
100
84
79
72
70
68
71
68
60
7
66
84
90
99
99
98
99

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 (%)

13
3
9
8
4
14
11
3
13
15
1
5
10
1
5
9
0
3
5
0
0
1
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)

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

Chance of Frost

Temperature (°C)

12
12
12
12
12
11
12
13
14
15
16
17
17
17
16
15
14
14
13
12
12
12
11
11

Feels Like (°C)

10
10
10
10
10
10
11
11
13
14
15
15
16
17
16
14
13
15
12
11
10
10
9
9

Dew Point (°C)

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

Relative Humidity (%)

80
79
77
75
73
71
71
67
63
59
58
56
56
58
61
64
66
68
68
67
66
63
60
58

Pressure (mb)

1027
1027
1027
1027
1027
1027
1027
1028
1028
1028
1027
1027
1026
1026
1026
1026
1026
1026
1026
1026
1026
1026
1026
1026

Ozone (du)

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

Friday 19

Waning Crescent 1%

07:20

15:49

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
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad

Sun - Rise: 07:33, Set: 16:41, Transit: 12:07. Moon - Rise: 07:20, Set: 15:49. 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
98
96
94
92
91
88
89
91
92
93
92
91
93

Low Clouds (% Sky Obscured)

33
32
29
27
23
15
7
0
0
0
2
1
1
1
1
2
2
11
20
28
23
18
12
7

Medium Clouds (% Sky Obscured)

6
11
16
56
98
96
96
78
73
96
97
95
95
94
92
91
88
85
73
61
62
61
60
74

High Clouds (% Sky Obscured)

99
100
100
100
97
100
100
100
100
100
95
90
80
72
45
34
37
54
74
74
84
91
91
86

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
2
4
5
2
7
11
1
3
5
0
0
1
0
1

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)

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

Chance of Frost

Temperature (°C)

11
11
11
11
11
11
11
12
13
15
16
17
16
16
16
15
14
13
12
12
11
11
10
10

Feels Like (°C)

9
9
9
9
9
9
8
10
11
12
13
14
14
14
14
14
13
13
10
10
9
10
9
9

Dew Point (°C)

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

Relative Humidity (%)

57
55
54
55
53
52
52
50
47
42
40
39
41
43
45
47
49
52
53
55
56
57
57
58

Pressure (mb)

1025
1025
1024
1024
1024
1023
1023
1024
1024
1023
1023
1022
1021
1021
1020
1020
1020
1020
1019
1019
1019
1019
1018
1018

Ozone (du)

332
331
330
331
331
331
333
333
334
337
336
336
335
335
334
334
333
332
331
331
330
328
326
324

Saturday 20

New Moon 0%

08:14

16:42

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 OK
17 OK
18 OK
19 OK
20 OK
21 OK
22 OK
23 OK
00 OK
01 OK

Sun - Rise: 07:33, Set: 16:41, Transit: 12:07. Moon - Rise: 08:14, Set: 16:42. Civil Dark: 17:13 - 07:02. Nautical Dark: 17:48 - 06:27. Astro Dark: 18:22 - 05:53

Total Clouds (% Sky Obscured)

95
98
98
99
99
100
100
100
95
92
89
77
65
54
45
36
27
33
41
38
34
31
23
21

Low Clouds (% Sky Obscured)

5
4
7
9
11
25
37
47
50
52
59
51
41
27
23
21
20
13
9
3
5
6
6
6

Medium Clouds (% Sky Obscured)

85
95
92
89
86
71
56
41
48
54
60
49
39
28
24
20
10
12
18
16
16
13
14
14

High Clouds (% Sky Obscured)

74
62
67
71
76
83
89
96
76
57
37
34
30
26
19
13
6
6
6
6
6
5
4
5

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 (%)

1
2
5
5
1
4
6
0
1
2
0
0
0
0
0
0
0
0
0
0
1
1
1
2

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

Chance of Frost

Temperature (°C)

10
10
9
9
9
9
10
11
12
13
14
15
15
15
15
14
13
12
12
11
11
10
10
10

Feels Like (°C)

7
8
7
7
7
7
7
7
8
9
9
10
13
13
14
13
13
13
11
11
12
11
11
11

Dew Point (°C)

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

Relative Humidity (%)

57
57
57
57
58
58
55
52
50
47
44
42
44
46
47
50
54
57
59
60
62
64
65
66

Pressure (mb)

1017
1017
1016
1016
1016
1016
1016
1016
1016
1015
1015
1014
1014
1013
1013
1013
1013
1013
1013
1013
1012
1012
1012
1012

Ozone (du)

323
322
321
315
308
302
313
323
334
341
349
356
356
355
355
348
341
334
330
326
322
314
306
298

Sunday 21

Waxing Crescent 2%

09:00

17:43

Sun - Rise: 07:34, Set: 16:42, Transit: 12:08. Moon - Rise: 09:00, Set: 17:43. Civil Dark: 17:14 - 07:02. Nautical Dark: 17:49 - 06:27. Astro Dark: 18:23 - 05:53

Total Clouds (% Sky Obscured)

Low Clouds (% Sky Obscured)

Medium Clouds (% Sky Obscured)

High Clouds (% Sky Obscured)

ISS Passover

Visibility (miles)

Fog (%)

Precipitation Type

Precipitation Probability (%)

Precipitation Amount (mm)

Wind Speed/Direction (mph)

Chance of Frost

Temperature (°C)

Feels Like (°C)

Dew Point (°C)

Relative Humidity (%)

Pressure (mb)

Ozone (du)

Forecast for Testaccio, Province of Rome, Italy (41.86,12.48)

Generated: 15/12/25 02:47:23. Forecast: 15/12/25 to 21/12/25. Timezone: UTC+1.00