Clear Outside v1.0 - International Weather Forecasts For Astronomers

Wednesday 31

Waxing Gibbous 90%

No Rise

05:42

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

Sun - Rise: 07:37, Set: 16:49, Transit: 12:13. Moon - Rise: No Rise, 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)

81
82
85
75
77
62
44
59
51
49
55
57
46
37
39
50
46
25
27
80
83
91
89
88

Low Clouds (% Sky Obscured)

81
82
85
75
77
62
43
59
51
49
55
57
44
33
39
50
46
25
27
80
69
71
80
33

Medium Clouds (% Sky Obscured)

21
15
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
21
30
36
36
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
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 (%)

2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
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)

4
3
2
2
1
1
2
2
2
3
3
3
3
3
4
4
5
5
5
4
5
6
8
10

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

53
54
56
57
58
58
59
59
57
58
58
57
54
52
52
52
52
53
54
54
52
54
53
54

Pressure (mb)

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

Ozone (du)

302
302
303
299
304
313
321
323
323
323
325
328
332
334
335
334
331
330
333
336
333
333
333
333

Thursday 1

Waxing Gibbous 97%

14:27

06:56

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
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad

Sun - Rise: 07:37, Set: 16:50, Transit: 12:14. 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)

88
86
93
95
96
92
94
92
97
100
100
98
100
58
71
65
52
67
58
71
79
55
78
64

Low Clouds (% Sky Obscured)

54
50
45
73
95
87
94
83
77
90
67
50
72
58
71
56
49
66
25
44
44
29
22
20

Medium Clouds (% Sky Obscured)

29
29
27
27
20
25
30
35
35
35
18
8
22
0
0
0
0
5
32
27
20
3
14
2

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
14
97
100
100
98
100
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

1
3
2
5
14
19
32
48
58
65
64
47
47
35
16
28
39
30
29
42
45
39
23
15

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

55
58
59
60
61
63
66
71
76
78
80
82
84
84
82
77
76
73
69
66
62
60
60
56

Pressure (mb)

1019
1019
1019
1019
1018
1018
1018
1017
1017
1017
1016
1015
1015
1015
1014
1013
1014
1014
1014
1014
1014
1014
1012
1011

Ozone (du)

331
329
328
327
328
326
327
327
330
329
329
331
336
339
339
339
336
333
331
327
323
320
315
310

Friday 2

Waxing Gibbous 100%

15:31

07:57

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
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 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)

75
65
62
72
77
77
73
68
74
91
81
77
89
95
95
100
95
95
94
89
95
96
97
96

Low Clouds (% Sky Obscured)

22
25
49
67
72
77
73
68
74
79
81
77
83
77
79
76
67
68
60
62
53
44
58
73

Medium Clouds (% Sky Obscured)

20
16
16
20
26
30
34
50
68
85
78
44
45
66
57
89
92
91
92
59
45
51
92
84

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
10
19

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

14
26
14
27
16
29
45
52
38
48
53
55
56
56
53
44
35
31
49
48
51
53
52
56

Precipitation Amount (mm)

0
0
0
0
0
0
0
0.3
0
0
0
0.3
0.3
0.3
0.2
0
0
0
0
0
0
0
0
0.2

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

54
56
59
63
63
62
63
69
70
70
74
76
79
80
82
81
82
80
82
80
78
74
72
72

Pressure (mb)

1010
1010
1010
1010
1009
1010
1009
1009
1008
1008
1007
1007
1006
1006
1006
1005
1005
1005
1005
1006
1006
1006
1006
1005

Ozone (du)

307
304
304
307
312
317
319
317
317
314
311
307
307
306
307
306
307
307
308
309
312
313
314
314

Saturday 3

Full Moon 99%

16:46

08:45

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
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad

Sun - Rise: 07:37, Set: 16:51, Transit: 12:15. Moon - Rise: 16:46, Set: 08:45. Civil Dark: 17:23 - 07:06. Nautical Dark: 17:58 - 06:31. Astro Dark: 18:31 - 05:57

Total Clouds (% Sky Obscured)

94
93
93
92
92
94
97
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

81
81
83
84
45
62
84
62
72
78
76
75
86
89
87
87
87
89
90
92
91
91
90
81

Medium Clouds (% Sky Obscured)

88
84
86
87
65
44
77
39
80
75
79
82
80
84
88
92
99
99
99
100
100
100
100
100

High Clouds (% Sky Obscured)

20
20
21
22
28
52
55
100
82
46
73
100
100
100
100
100
100
100
100
100
100
100
100
99

ISS Passover

Visibility (miles)

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

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
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
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

61
64
74
77
70
72
90
89
95
95
95
95
95
95
95
95
95
95
95
95
95
95
95
95

Precipitation Amount (mm)

0.3
0.3
0.4
0.5
0.3
0.3
0.7
0.8
1.2
1.7
1.5
1.7
1.2
0.7
0.8
0.9
0.7
1.2
2
1.8
1.5
1.8
2.4
2

Wind Speed/Direction (mph)

12
11
9
7
6
5
5
4
3
4
4
4
2
4
4
2
3
3
4
5
5
4
4
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

11
12
12
12
12
12
12
12
12
12
12
12
12
12
11
11
11
11
11
11
11
11
11
12

Relative Humidity (%)

73
77
82
84
89
90
89
92
93
93
95
93
93
92
90
89
90
89
89
92
92
92
92
93

Pressure (mb)

1005
1005
1005
1005
1005
1006
1006
1006
1006
1005
1005
1005
1005
1005
1004
1004
1004
1004
1004
1005
1005
1005
1004
1004

Ozone (du)

315
318
319
320
322
321
325
327
327
328
325
324
322
321
323
325
325
322
323
327
329
336
341
345

Sunday 4

Waning Gibbous 96%

18:05

09:22

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
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad

Sun - Rise: 07:37, Set: 16:52, Transit: 12:15. Moon - Rise: 18:05, Set: 09:22. Civil Dark: 17:24 - 07:06. Nautical Dark: 17:58 - 06:31. Astro Dark: 18:32 - 05:57

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
98
98
100
89
79
70
63
53
46
44
38
36
41
50
58
62

Low Clouds (% Sky Obscured)

73
63
67
69
75
77
76
85
82
59
46
44
39
42
45
48
46
44
38
36
41
47
38
25

Medium Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
83
70
72
66
58
50
38
26
14
11
11
11
7
8
9
11

High Clouds (% Sky Obscured)

100
100
100
99
100
100
100
100
46
89
100
71
39
8
1
3
2
3
4
5
14
22
31
38

ISS Passover

Visibility (miles)

3
3
5
8
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
None
None
None
None
None
Very Light Rain
None
Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

95
95
95
87
60
59
57
52
56
57
50
89
69
36
41
38
29
29
29
25
30
30
20
23

Precipitation Amount (mm)

1.4
1
0.6
0.4
0
0
0
0
0
0.2
0
0.5
0.3
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

11
11
11
12
11
10
11
10
8
6
5
4
4
4
4
5
5
5
5
5
6
6
5
5

Dew Point (°C)

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

Relative Humidity (%)

93
93
92
92
92
92
90
91
91
88
87
85
85
85
87
87
85
85
82
79
77
73
69
66

Pressure (mb)

1004
1004
1004
1004
1005
1005
1005
1006
1006
1007
1007
1007
1007
1007
1007
1008
1008
1008
1009
1010
1010
1010
1010
1010

Ozone (du)

342
338
337
335
333
332
331
330
329
330
331
332
332
331
330
330
330
330
332
334
336
332
329
325

Monday 5

Waning Gibbous 91%

19:23

09:50

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
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad

Sun - Rise: 07:37, Set: 16:53, Transit: 12:16. Moon - Rise: 19:23, Set: 09:50. Civil Dark: 17:24 - 07:06. Nautical Dark: 17:59 - 06:31. Astro Dark: 18:33 - 05:57

Total Clouds (% Sky Obscured)

66
71
76
78
77
82
89
94
96
98
100
100
99
99
99
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

16
9
9
9
9
26
40
52
55
57
65
70
75
75
75
70
65
70
60
60
60
70
80
95

Medium Clouds (% Sky Obscured)

17
24
18
12
6
6
6
7
33
60
87
86
84
82
88
94
100
100
100
100
100
100
100
100

High Clouds (% Sky Obscured)

45
52
63
75
77
82
85
84
90
95
100
99
98
97
95
93
91
94
97
100
100
100
100
74

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
7
6
4

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
Very Light Rain
Light Rain
Light Rain
Very Light Rain

Precipitation Probability (%)

22
15
14
12
5
10
11
5
11
14
13
16
19
16
40
44
29
45
50
44
70
83
86
84

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

10
10
11
11
10
10
7
6
6
6
5
5
4
4
4
3
3
3
3
3
3
3
4
5

Dew Point (°C)

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

Relative Humidity (%)

67
67
68
72
75
78
79
78
78
77
76
76
75
74
74
74
75
76
76
79
82
85
88
90

Pressure (mb)

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

Ozone (du)

323
320
318
317
316
315
318
322
325
328
330
332
331
329
328
330
332
334
333
333
332
331
330
329

Tuesday 6

Waning Gibbous 83%

20:37

10:14

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: 07:37, Set: 16:54, Transit: 12:16. Moon - Rise: 20:37, Set: 10:14. Civil Dark: 17:25 - 07:06. Nautical Dark: 18:00 - 06:31. Astro Dark: 18:34 - 05:57

Total Clouds (% Sky Obscured)

100
100
100
100
100
99
97
96
96
97
98
93
90
89
88
90
91

Low Clouds (% Sky Obscured)

100
100
95
95
90
90
91
91
96
97
98
93
90
89
88
90
91

Medium Clouds (% Sky Obscured)

99
99
99
100
100
99
97
96
96
97
98
93
90
89
87
73
60

High Clouds (% Sky Obscured)

48
21
45
70
94
88
83
78
53
29
5
5
6
7
14
22
29

ISS Passover

Visibility (miles)

3
3
2
4
6
8
7
6
5
7
8
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

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
None
None
None
None

Precipitation Probability (%)

91
95
95
95
95
95
95
95
95
95
75
59
44
29
29
27
14

Precipitation Amount (mm)

0.4
0.6
1
0.9
0.5
0.7
1
1.5
1.6
1.1
0.3
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

91
91
91
91
91
91
91
93
93
93
91
91
91
91
89
89
88

Pressure (mb)

1014
1014
1014
1014
1014
1014
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015

Ozone (du)

336
342
349
351
353
355
358
360
363
363
364
365
367
369
372
371
370

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

Generated: 31/12/25 14:14:43. Forecast: 31/12/25 to 06/01/26. Timezone: UTC+1.00