Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 18

Waning Crescent 1%

06:23

15:54

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 OK
14 Good
15 OK
16 Good

Sun - Rise: 07:05, Set: 16:45, Transit: 11:55. Moon - Rise: 06:23, Set: 15:54. Civil Dark: 17:16 - 06:35. Nautical Dark: 17:50 - 06:01. Astro Dark: 18:23 - 05:27

Total Clouds (% Sky Obscured)

71
72
68
42
38
44
49
60
70
74
76
82
82
51
51
69
77
84
70
41
6
6
9
3

Low Clouds (% Sky Obscured)

71
66
55
42
38
42
49
60
70
74
76
82
82
48
36
49
62
74
56
30
6
6
9
3

Medium Clouds (% Sky Obscured)

42
27
6
1
3
8
7
13
10
6
0
0
0
0
6
25
36
35
30
3
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)

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

Fog (%)

0
2
2
0
0
0
4
9
9
9
9
9
12
13
7
2
0
0
0
0
0
0
0
0

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
None
None
None

Precipitation Probability (%)

61
35
34
15
14
12
19
19
19
11
22
13
13
11
25
24
40
33
14
17
17
11
15
7

Precipitation Amount (mm)

0.3
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
3
3
3
2
2
4
5
5
5
5
5
4
3
3
4
3
3
5
5
6
6
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

89
89
89
89
89
89
89
87
86
83
83
81
80
80
81
83
76
71
65
61
59
59
61
66

Pressure (mb)

1009
1010
1010
1011
1011
1011
1011
1011
1011
1011
1011
1011
1011
1011
1011
1012
1012
1012
1012
1011
1011
1010
1010
1010

Ozone (du)

300
299
301
303
304
303
299
296
291
298
306
311
309
310
312
310
300
291
291
290
285
285
283
277

Wednesday 19

Waning Crescent 0%

07:26

16:26

17 Good
18 OK
19 OK
20 OK
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: 07:06, Set: 16:45, Transit: 11:55. Moon - Rise: 07:26, Set: 16:26. Civil Dark: 17:16 - 06:36. Nautical Dark: 17:50 - 06:02. Astro Dark: 18:23 - 05:28

Total Clouds (% Sky Obscured)

2
0
17
23
65
66
89
82
54
49
57
61
84
83
95
95
98
98
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

2
0
0
12
11
40
52
34
26
25
32
26
43
49
77
89
83
87
84
85
70
52
65
58

Medium Clouds (% Sky Obscured)

0
0
7
3
24
21
27
30
13
13
15
22
43
46
52
79
83
73
84
78
36
48
52
68

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
5
55
47
80
83
100
100
100
100
100
100

ISS Passover

Visibility (miles)

9
8
9
9
9
9
9
9
9
9
9
9
9
9
9
9
3
4
5
3
4
5
9
9

Fog (%)

0
0
0
0
0
1
39
39
38
38
38
38
38
2
1
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
Light Rain
Light Rain
Light Rain
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

14
17
13
8
12
13
20
19
16
16
12
12
14
41
79
90
95
85
95
95
95
95
89
67

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.5
0.6
0.6
0.3
0.8
1.4
0.8
0.7
0.9
0.5

Wind Speed/Direction (mph)

4
3
3
3
2
2
4
5
5
4
4
4
4
5
6
6
8
9
11
10
9
8
7
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

74
78
78
76
75
76
73
69
69
70
70
71
72
75
76
74
80
84
76
82
79
74
68
67

Pressure (mb)

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

Ozone (du)

276
275
275
273
273
273
275
277
278
282
286
289
290
290
291
292
294
295
298
296
297
300
306
309

Thursday 20

New Moon 2%

08:28

17:05

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: 07:07, Set: 16:44, Transit: 11:56. Moon - Rise: 08:28, Set: 17:05. Civil Dark: 17:15 - 06:37. Nautical Dark: 17:49 - 06:03. Astro Dark: 18:22 - 05:30

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
79
91
96

Low Clouds (% Sky Obscured)

75
60
41
71
10
26
57
64
80
40
20
38
66
46
61
21
16
20
30
27
21
13
20
5

Medium Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
92
97
100
100
100
100
100
100
100
100
51
60
91

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
79
91
96

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
8
9
9
9
9
9
9
9
9
9
9
7
9
9
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
None
None
None
None
None
None
None

Precipitation Probability (%)

29
37
24
24
12
17
24
28
28
32
29
28
23
28
16
14
15
29
33
18
14
30
26
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)

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

Chance of Frost

Temperature (°C)

14
14
14
14
13
13
13
13
13
13
13
13
13
12
12
12
13
14
14
14
14
14
13
12

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

68
67
62
59
59
57
57
59
64
64
64
62
62
61
61
56
52
49
51
50
48
53
62
59

Pressure (mb)

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

Ozone (du)

310
310
315
318
322
318
312
314
322
332
333
333
332
334
339
342
345
351
357
360
366
366
366
364

Friday 21

Waxing Crescent 5%

09:26

17:05

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: 07:08, Set: 16:43, Transit: 11:56. Moon - Rise: 09:26, Set: 17:05. Civil Dark: 17:14 - 06:38. Nautical Dark: 17:49 - 06:04. Astro Dark: 18:22 - 05:30

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
99
97
96
97
99
100
99
99
98
90
91
100
100
100
50
40

Low Clouds (% Sky Obscured)

8
12
56
58
55
60
65
22
48
31
61
16
22
13
22
19
7
13
20
31
21
13
5
10

Medium Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
98
95
92
96
98
100
99
99
98
83
90
100
100
100
50
40

High Clouds (% Sky Obscured)

100
90
98
100
98
81
81
76
52
28
3
22
27
35
34
33
28
28
29
30
30
25
20
15

ISS Passover

Visibility (miles)

9
9
9
7
7
4
5
5
4
5
4
7
7
7
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
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
None
None
None
Very Light Rain
None

Precipitation Probability (%)

18
30
38
63
80
67
73
75
68
85
83
75
62
43
40
34
18
27
36
29
47
54
61
47

Precipitation Amount (mm)

0
0
0
0.4
0.7
0.4
0.4
0.5
0.4
0.8
0.7
0.5
0.2
0
0
0
0
0
0
0
0
0
0.3
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

58
56
55
52
60
61
59
59
67
68
72
74
77
75
75
75
70
64
58
52
49
48
48
52

Pressure (mb)

1007
1007
1007
1008
1008
1008
1008
1008
1007
1007
1008
1008
1008
1008
1008
1009
1009
1010
1010
1010
1010
1010
1011
1011

Ozone (du)

360
362
359
359
361
366
368
364
361
363
365
365
361
362
358
354
358
355
358
352
349
348
344
345

Saturday 22

Waxing Crescent 10%

10:17

17:52

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

Sun - Rise: 07:09, Set: 16:43, Transit: 11:56. Moon - Rise: 10:17, Set: 17:52. Civil Dark: 17:14 - 06:39. Nautical Dark: 17:48 - 06:05. Astro Dark: 18:21 - 05:31

Total Clouds (% Sky Obscured)

71
98
100
50
40
30
16
4
18
49
55
39
36
34
23
42
63
74
88
97
97
97
98
98

Low Clouds (% Sky Obscured)

18
25
22
16
10
7
4
1
2
9
8
2
3
4
14
22
34
41
52
62
66
68
70
67

Medium Clouds (% Sky Obscured)

71
98
100
40
30
20
8
0
7
10
15
9
8
7
5
9
14
38
62
86
91
95
98
98

High Clouds (% Sky Obscured)

15
15
10
6
1
1
0
0
0
0
0
0
0
0
3
6
9
39
70
97
97
97
98
97

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
Very Light Rain

Precipitation Probability (%)

30
18
26
35
8
12
12
5
8
7
1
2
4
2
8
10
11
17
21
21
31
43
57
64

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
0.3

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

57
59
58
59
62
65
66
66
63
60
59
59
60
61
64
63
63
63
64
63
63
66
68
72

Pressure (mb)

1012
1013
1013
1014
1014
1015
1016
1016
1016
1017
1017
1017
1017
1017
1018
1017
1017
1017
1017
1017
1016
1016
1016
1016

Ozone (du)

348
348
346
345
343
343
343
346
345
346
350
354
357
354
354
354
354
354
358
361
364
363
362
362

Sunday 23

Waxing Crescent 16%

11:01

18:48

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: 07:11, Set: 16:42, Transit: 11:56. Moon - Rise: 11:01, Set: 18:48. Civil Dark: 17:13 - 06:40. Nautical Dark: 17:48 - 06:06. Astro Dark: 18:21 - 05:32

Total Clouds (% Sky Obscured)

99
99
94
91
87
80
75
68
76
84
93
89
85
82
76
69
61
72
83
96
96
99
100
100

Low Clouds (% Sky Obscured)

66
69
72
75
80
73
71
64
73
81
87
76
66
53
42
36
29
32
37
37
51
64
83
68

Medium Clouds (% Sky Obscured)

96
94
83
73
62
44
28
12
14
19
25
21
13
12
15
16
13
14
15
16
44
70
99
98

High Clouds (% Sky Obscured)

90
82
63
50
46
32
18
1
1
1
1
3
5
7
14
21
28
48
69
90
85
85
85
85

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

Precipitation Probability (%)

65
63
78
77
54
64
65
39
59
55
27
36
32
8
14
12
5
12
17
20
41
59
76
74

Precipitation Amount (mm)

0.2
0
0.3
0.3
0
0
0
0
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.5
0.4

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

72
72
72
70
69
68
69
70
70
70
72
73
72
73
74
71
68
64
64
63
62
65
68
70

Pressure (mb)

1016
1015
1015
1015
1015
1015
1015
1015
1015
1014
1014
1014
1014
1014
1014
1014
1014
1014
1013
1012
1012
1011
1011
1010

Ozone (du)

361
359
358
356
354
351
350
349
348
345
342
340
337
335
333
330
328
325
326
327
328
331
335
338

Monday 24

Waxing Crescent 24%

11:36

19:50

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

Sun - Rise: 07:12, Set: 16:42, Transit: 11:57. Moon - Rise: 11:36, Set: 19:50. Civil Dark: 17:13 - 06:41. Nautical Dark: 17:47 - 06:07. Astro Dark: 18:20 - 05:33

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
99
99
99
100
100
100
100
100
93
87
80
67
54
42

Low Clouds (% Sky Obscured)

52
37
44
52
60
71
82
94
95
97
99
95
97
99
93
86
79
66
53
39

Medium Clouds (% Sky Obscured)

98
100
100
100
100
91
81
72
79
86
93
95
98
100
78
56
33
23
12
2

High Clouds (% Sky Obscured)

90
95
93
92
87
66
44
22
37
52
69
68
64
61
44
22
1
1
0
0

ISS Passover

Visibility (miles)

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

Fog (%)

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

Precipitation Probability (%)

69
55
73
86
95
95
95
95
95
95
95
95
95
95
95
95
66
78
80
80

Precipitation Amount (mm)

0.3
0
0.3
0.5
0.7
1
1.1
1.1
2
2.6
3.1
3.4
3.7
3.3
2.3
1.3
0.2
0.4
0.5
0.4

Wind Speed/Direction (mph)

9
9
9
10
11
12
13
15
16
17
18
20
15
12
13
12
12
12
13
14

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

72
75
76
76
75
75
76
78
79
82
83
86
80
74
69
65
62
59
60
62

Pressure (mb)

1010
1009
1009
1008
1008
1007
1006
1005
1004
1003
1002
1001
1001
1000
1000
1001
1001
1002
1002
1002

Ozone (du)

338
338
338
337
335
333
331
328
326
326
326
325
325
325
325
328
331
334
335
336

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

Generated: 18/11/25 17:00:44. Forecast: 18/11/25 to 24/11/25. Timezone: UTC+1.00