Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 30

Waxing Gibbous 82%

12:58

04:22

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

Sun - Rise: 07:37, Set: 16:48, Transit: 12:12. Moon - Rise: 12:58, Set: 04:22. Civil Dark: 17:19 - 07:06. Nautical Dark: 17:54 - 06:31. Astro Dark: 18:28 - 05:57

Total Clouds (% Sky Obscured)

22
21
25
40
4
5
0
15
1
5
34
35
28
14
19
33
40
36
52
65
86
81
94
98

Low Clouds (% Sky Obscured)

22
21
25
33
4
4
0
12
1
5
34
35
28
14
6
17
21
22
47
57
85
81
93
83

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
1
11
18
16
20
24
26
21
23
31
35

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
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
7
9

Fog (%)

48
56
56
33
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
1
1
1
0
0
0
0
0
0
0
0
0
0
1
0
0
1
2
11
14
15
10

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

Chance of Frost

Temperature (°C)

6
7
9
11
12
13
13
13
12
11
10
10
9
9
8
8
7
7
7
7
7
7
7
7

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

74
68
63
60
60
59
58
56
58
64
68
64
66
67
70
74
75
75
71
66
64
64
63
63

Pressure (mb)

1014
1014
1014
1013
1013
1012
1012
1011
1011
1011
1011
1012
1012
1013
1013
1014
1014
1014
1014
1014
1015
1015
1015
1016

Ozone (du)

308
306
305
306
309
311
309
312
311
312
317
319
320
319
320
320
316
316
313
312
309
304
300
302

Wednesday 31

Waxing Gibbous 90%

13:37

05:42

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

Sun - Rise: 07:37, Set: 16:49, Transit: 12:13. Moon - Rise: 13:37, Set: 05:42. Civil Dark: 17:20 - 07:06. Nautical Dark: 17:55 - 06:31. Astro Dark: 18:29 - 05:57

Total Clouds (% Sky Obscured)

96
89
88
89
93
92
93
83
66
48
42
46
50
49
52
50
43
42
54
51
49
33
35
55

Low Clouds (% Sky Obscured)

88
89
88
89
92
91
93
83
55
32
24
28
30
28
33
34
28
33
54
51
49
33
35
55

Medium Clouds (% Sky Obscured)

33
28
24
21
14
13
15
3
0
0
0
0
0
2
0
0
0
0
0
0
0
1
0
8

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)

7
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 (%)

19
13
14
4
11
8
3
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
5
4
4
4
4
4
3
2
1
2
2
3
3
3
3
3
3
3
3
3
3
2
2

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

67
65
58
56
57
57
57
57
57
60
62
64
64
66
65
62
58
55
52
51
48
49
49
50

Pressure (mb)

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

Ozone (du)

306
306
306
305
299
298
300
303
305
305
307
315
320
325
325
328
333
334
336
333
332
334
335
334

Thursday 1

Waxing Gibbous 97%

14:27

06:56

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
07 Bad

Sun - Rise: 07:37, Set: 16:50, Transit: 12:13. Moon - Rise: 14:27, Set: 06:56. Civil Dark: 17:21 - 07:06. Nautical Dark: 17:56 - 06:31. Astro Dark: 18:30 - 05:57

Total Clouds (% Sky Obscured)

66
55
66
66
69
85
73
87
88
100
100
94
83
92
92
100
100
92
83
75
76
77
80
84

Low Clouds (% Sky Obscured)

54
29
27
24
24
49
16
58
58
84
86
69
55
79
80
82
84
83
83
75
48
70
80
84

Medium Clouds (% Sky Obscured)

3
12
33
38
35
39
52
47
47
60
50
60
55
55
35
0
0
0
0
0
1
1
25
76

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
54
100
100
67
33
0
0
0
10
20

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
5
2
3
4
20
24
39
47
39
44
45
28
24
29
16
26
30
29
41

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
4
5
6
8
9
10
10
10
9
9
10
11
13
13
11
9
7
7
6
5
5
5
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

50
52
52
54
55
54
54
55
60
60
57
57
59
65
68
69
72
73
73
78
80
84
82
82

Pressure (mb)

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

Ozone (du)

336
337
336
333
332
331
330
330
330
327
325
326
326
325
325
325
326
327
328
331
334
335
336
337

Friday 2

Waxing Gibbous 100%

15:31

07:57

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

Sun - Rise: 07:37, Set: 16:50, Transit: 12:14. Moon - Rise: 15:31, Set: 07:57. Civil Dark: 17:22 - 07:06. Nautical Dark: 17:57 - 06:31. Astro Dark: 18:31 - 05:57

Total Clouds (% Sky Obscured)

84
77
56
51
42
36
43
28
67
78
86
87
89
91
81
74
62
76
87
97
95
95
94
78

Low Clouds (% Sky Obscured)

35
35
34
33
30
20
15
6
12
17
22
24
57
79
73
69
62
62
56
52
57
62
66
60

Medium Clouds (% Sky Obscured)

70
34
16
8
0
2
5
7
9
26
84
61
83
55
55
24
40
56
38
53
50
41
30
25

High Clouds (% Sky Obscured)

9
9
3
2
1
2
12
9
45
67
74
71
69
70
57
70
62
70
33
7
26
86
86
41

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

43
49
44
41
32
26
22
18
19
21
21
27
34
43
37
40
36
38
34
30
22
19
23
22

Precipitation Amount (mm)

0
0.2
0
0
0
0
0
0
0
0
0
0
0
0.2
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

6
8
10
11
13
13
13
12
12
10
9
9
9
9
9
9
9
9
10
10
10
11
10
10

Dew Point (°C)

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

Relative Humidity (%)

82
83
77
71
63
57
54
55
59
64
67
71
76
76
76
77
77
77
80
82
82
84
84
84

Pressure (mb)

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

Ozone (du)

333
331
329
324
322
317
314
313
311
309
306
306
307
308
307
308
308
309
309
308
309
311
314
319

Saturday 3

Full Moon 99%

16:46

07:57

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
07 Bad

Sun - Rise: 07:37, Set: 16:51, Transit: 12:14. Moon - Rise: 16:46, Set: 07:57. Civil Dark: 17:23 - 07:06. Nautical Dark: 17:58 - 06:31. Astro Dark: 18:31 - 05:57

Total Clouds (% Sky Obscured)

66
55
75
73
78
77
85
81
84
87
91
95
95
96
92
89
85
89
94
98
98
98
98
98

Low Clouds (% Sky Obscured)

64
55
75
73
78
65
56
53
58
68
74
68
66
66
63
62
60
57
53
49
56
65
76
75

Medium Clouds (% Sky Obscured)

21
16
16
17
22
38
71
81
84
11
33
28
22
16
24
32
39
50
61
72
81
90
98
98

High Clouds (% Sky Obscured)

27
11
14
8
12
30
58
77
67
48
46
95
89
84
60
36
12
26
39
52
68
82
93
80

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
7
5
2
5
7
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
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
Light Rain

Precipitation Probability (%)

24
24
31
34
31
20
22
5
10
9
7
11
12
8
25
30
31
70
88
95
95
95
91
95

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.6
0.6
0.6
0.5
0.3
0.6

Wind Speed/Direction (mph)

8
8
9
11
13
14
13
13
12
12
11
10
15
15
15
14
14
14
14
14
15
14
13
13

Chance of Frost

Temperature (°C)

13
14
15
16
16
16
16
16
15
15
15
14
14
14
15
15
15
15
15
15
15
15
15
15

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

86
84
83
81
81
79
81
82
82
83
84
86
86
86
84
84
84
84
83
82
80
75
73
69

Pressure (mb)

1007
1007
1007
1007
1006
1006
1005
1005
1005
1005
1005
1005
1005
1005
1005
1004
1004
1003
1003
1002
1002
1002
1001
1001

Ozone (du)

324
327
325
324
323
325
326
327
329
329
332
334
337
341
344
341
338
335
332
329
326
323
320
317

Sunday 4

Waning Gibbous 96%

18:05

08:45

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
07 Bad

Sun - Rise: 07:37, Set: 16:52, Transit: 12:15. Moon - Rise: 18:05, Set: 08:45. Civil Dark: 17:24 - 07:06. Nautical Dark: 17:58 - 06:31. Astro Dark: 18:32 - 05:57

Total Clouds (% Sky Obscured)

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

Low Clouds (% Sky Obscured)

74
76
76
85
90
91
90
86
82
79
76
80
85
91
91
91
93
79
89
95
95
95
95
96

Medium Clouds (% Sky Obscured)

99
99
99
100
100
99
98
96
92
88
83
89
94
100
100
100
100
95
95
96
96
98
99
76

High Clouds (% Sky Obscured)

68
65
65
65
90
73
50
28
48
67
87
91
95
100
100
100
100
95
90
85
85
90
95
76

ISS Passover

Visibility (miles)

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

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
Moderate Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
Very Light Rain
Light Rain
Very Light Rain

Precipitation Probability (%)

95
94
93
89
80
89
95
95
95
91
89
95
95
95
95
95
95
95
95
84
81
78
76
62

Precipitation Amount (mm)

0.6
0.4
0.5
0.4
0.3
0.5
0.6
0.7
0.6
0.6
0.5
0.7
1
1.3
1.8
2.2
2.5
1.7
1
0.4
0.3
0.3
0.4
0.2

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

70
73
75
75
77
77
78
79
80
80
80
80
82
82
83
86
90
93
90
89
84
83
80
77

Pressure (mb)

1001
1001
1001
1001
1000
1000
1000
1000
1000
1000
1000
1000
1000
999
999
1000
1000
1000
1000
1000
1000
1001
1001
1002

Ozone (du)

320
322
325
328
330
333
336
340
344
345
345
346
346
345
345
343
342
340
339
338
337
337
337
337

Monday 5

Waning Gibbous 91%

19:23

09:22

08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 OK
19 OK
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad

Sun - Rise: 07:37, Set: 16:53, Transit: 12:15. Moon - Rise: 19:23, Set: 09:22. Civil Dark: 17:24 - 07:06. Nautical Dark: 17:59 - 06:31. Astro Dark: 18:33 - 05:57

Total Clouds (% Sky Obscured)

100
99
100
100
100
92
85
79
60
41
22
39
59
80
83
86
89

Low Clouds (% Sky Obscured)

97
98
98
98
98
90
83
75
55
37
18
38
59
80
82
84
87

Medium Clouds (% Sky Obscured)

53
30
20
10
0
0
0
0
0
0
0
0
0
0
1
1
2

High Clouds (% Sky Obscured)

60
40
26
13
0
0
0
0
0
0
0
0
0
0
14
27
41

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
8
7
8
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 (%)

47
27
26
22
20
28
33
37
32
27
16
14
11
3
10
12
12

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

11
11
11
9
8
6
7
8
9
6
4
2
2
2
3
2
2

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

73
69
65
65
63
64
67
69
73
76
78
81
79
77
77
76
76

Pressure (mb)

1003
1004
1004
1005
1005
1005
1006
1006
1007
1007
1008
1009
1010
1010
1011
1011
1012

Ozone (du)

336
335
334
338
343
348
345
343
341
340
340
339
340
341
342
343
344

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

Generated: 30/12/25 08:07:02. Forecast: 30/12/25 to 05/01/26. Timezone: UTC+1.00