Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 12

Waning Crescent 37%

01:09

12:53

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

Sun - Rise: 07:33, Set: 16:41, Transit: 12:07. Moon - Rise: 01:09, Set: 12:53. Civil Dark: 17:13 - 07:01. Nautical Dark: 17:48 - 06:26. Astro Dark: 18:22 - 05:52

Total Clouds (% Sky Obscured)

42
32
25
20
1
1
33
28
30
25
21
11
3
0
5
28
37
45
41
37
36
36
26
0

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
15
12
13
13
9
5
1
0
2
12
17
24
20
19
19
19
15
0

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
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

0
2
31
80
89
88
75
73
70
63
0
0
0
0
63
63
0
1
1
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
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
4
5
5
5
5
5
5
5
6
5
5
5
4
3
2
1
1
2
2
1

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

11
11
10
10
10
10
9
9
9
9
8
8
7
8
8
9
11
13
15
15
15
15
14
13

Dew Point (°C)

6
6
7
7
7
7
6
6
6
6
6
5
5
5
5
5
5
5
5
5
6
6
7
7

Relative Humidity (%)

77
78
80
80
80
81
80
81
81
80
80
80
78
79
78
73
66
60
55
54
56
58
65
69

Pressure (mb)

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

Ozone (du)

287
287
288
286
286
286
285
284
284
284
284
284
284
284
284
284
285
286
286
287
286
287
288
288

Saturday 13

Waning Crescent 27%

02:12

13:13

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

Sun - Rise: 07:33, Set: 16:41, Transit: 12:07. Moon - Rise: 02:12, Set: 13:13. Civil Dark: 17:13 - 07:02. Nautical Dark: 17:48 - 06:26. Astro Dark: 18:22 - 05:52

Total Clouds (% Sky Obscured)

0
0
0
0
0
0
2
6
1
17
3
2
7
7
11
29
54
91
96
100
79
98
100
92

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
3
9
13
13
13
10
8
7
4

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
1
2
7
15
3
2
15
20
36
7
41

High Clouds (% Sky Obscured)

0
0
0
0
0
0
2
6
0
17
3
1
3
5
2
0
3
76
87
100
49
95
100
77

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
2
2
0
3
11
73
73
73
0
6
88
82
95
18
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
0
0
1
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

71
72
75
77
77
77
76
77
77
77
78
80
78
79
78
74
70
66
68
68
69
72
77
80

Pressure (mb)

1025
1025
1026
1026
1026
1026
1026
1026
1026
1026
1026
1026
1026
1026
1027
1027
1027
1027
1027
1026
1026
1026
1026
1026

Ozone (du)

287
287
288
287
285
284
284
283
286
288
290
290
291
293
294
293
293
293
293
293
291
291
292
291

Sunday 14

Waning Crescent 19%

03:15

13:34

18 Bad
19 OK
20 Good
21 OK
22 OK
23 OK
00 OK
01 Good
02 OK
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

Sun - Rise: 07:34, Set: 16:42, Transit: 12:08. Moon - Rise: 03:15, Set: 13:34. Civil Dark: 17:13 - 07:02. Nautical Dark: 17:48 - 06:27. Astro Dark: 18:22 - 05:53

Total Clouds (% Sky Obscured)

60
46
9
28
19
29
34
9
37
73
88
85
100
100
85
95
99
99
85
90
95
100
100
100

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
16
16
26
31
32
30
36
27
25
21
17
14
26
31
7

Medium Clouds (% Sky Obscured)

37
39
0
0
17
29
2
2
20
2
30
2
0
3
0
4
22
18
1
12
10
51
25
81

High Clouds (% Sky Obscured)

50
0
8
11
0
0
15
2
8
5
46
20
100
100
30
39
99
98
59
73
87
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
9
9
9
9

Fog (%)

0
0
0
0
0
63
0
11
23
19
31
19
30
26
26
26
26
26
26
26
26
26
26
26

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
1
2
1
2
4
8
13
3
1
2
3
4
7
9

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

81
81
84
84
82
82
82
82
82
81
80
80
78
78
77
73
68
64
61
61
61
63
70
74

Pressure (mb)

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

Ozone (du)

292
297
299
301
301
301
302
302
303
303
303
304
304
303
303
303
305
305
305
307
307
308
311
312

Monday 15

Waning Crescent 12%

04:18

13:59

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
17 Bad

Sun - Rise: 07:35, Set: 16:42, Transit: 12:08. Moon - Rise: 04:18, Set: 13:59. Civil Dark: 17:14 - 07:03. Nautical Dark: 17:49 - 06:28. Astro Dark: 18:22 - 05:54

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
99
99
98
99
99
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

5
3
10
0
0
0
4
47
4
5
59
6
11
11
63
71
73
74
81
82
84
83
83
82

Medium Clouds (% Sky Obscured)

100
100
100
100
100
100
100
97
93
90
92
93
95
96
98
100
100
100
100
100
100
100
100
100

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
73
100
94
31
60
96
98
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
9
9
3
9

Fog (%)

26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26

Precipitation Type

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
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

4
11
10
3
8
9
2
3
5
2
6
9
7
15
22
32
45
57
75
89
95
95
95
95

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.4
0.5
1.1
1.2
1.1

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

75
73
73
72
72
72
71
67
65
63
61
61
61
61
61
61
56
53
56
53
57
60
72
76

Pressure (mb)

1023
1023
1023
1023
1022
1022
1021
1021
1020
1020
1019
1019
1018
1018
1018
1018
1018
1017
1017
1016
1016
1015
1015
1015

Ozone (du)

313
315
318
319
320
319
320
321
322
319
321
322
321
321
322
321
327
330
328
322
317
312
305
300

Tuesday 16

Waning Crescent 7%

05:22

14:29

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
17 Bad

Sun - Rise: 07:35, Set: 16:42, Transit: 12:09. Moon - Rise: 05:22, Set: 14:29. Civil Dark: 17:14 - 07:04. Nautical Dark: 17:49 - 06:28. Astro Dark: 18:23 - 05:54

Total Clouds (% Sky Obscured)

100
100
100
100
95
92
89
90
90
58
87
76
53
30
25
21
38
64
84
84
84
84
90
95

Low Clouds (% Sky Obscured)

82
85
88
93
87
80
74
77
27
42
29
29
32
30
25
21
28
23
19
18
16
17
16
16

Medium Clouds (% Sky Obscured)

100
100
100
100
95
92
57
90
90
35
17
28
14
3
1
0
1
7
8
20
31
37
49
59

High Clouds (% Sky Obscured)

100
100
100
100
82
63
60
60
45
4
43
35
1
5
5
5
30
54
80
81
81
82
83
83

ISS Passover

Visibility (miles)

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

Fog (%)

26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26

Precipitation Type

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

Precipitation Probability (%)

95
95
95
95
95
95
89
87
93
93
78
75
75
70
65
83
79
59
84
69
44
48
41
51

Precipitation Amount (mm)

1.3
2.1
2.4
1.9
1.5
0.9
0.6
0.7
0.9
1.1
0.7
0.7
0.6
0.5
0.3
0.5
0.5
0
0.4
0.4
0
0
0
0.2

Wind Speed/Direction (mph)

13
13
15
18
20
18
17
18
17
13
10
8
9
10
11
12
14
14
15
17
16
14
13
12

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

77
77
81
87
90
89
86
84
82
82
86
87
89
90
87
83
79
78
74
71
73
75
78
80

Pressure (mb)

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

Ozone (du)

301
311
317
317
319
317
313
316
322
325
323
323
328
329
328
327
327
325
324
322
322
322
321
322

Wednesday 17

Waning Crescent 3%

06:24

15:05

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
17 Bad

Sun - Rise: 07:36, Set: 16:43, Transit: 12:09. Moon - Rise: 06:24, Set: 15:05. Civil Dark: 17:14 - 07:04. Nautical Dark: 17:50 - 06:29. Astro Dark: 18:23 - 05:55

Total Clouds (% Sky Obscured)

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

Low Clouds (% Sky Obscured)

12
13
10
10
6
6
6
3
7
13
25
27
26
24
23
18
11
3
0
19
39
58
47
35

Medium Clouds (% Sky Obscured)

72
72
73
73
79
78
72
67
69
70
70
79
79
86
87
90
92
91
91
93
88
76
76
91

High Clouds (% Sky Obscured)

82
88
92
100
98
97
97
95
92
90
90
90
95
98
99
100
100
100
100
93
86
79
88
95

ISS Passover

Visibility (miles)

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

Fog (%)

26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26

Precipitation Type

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

Precipitation Probability (%)

75
65
45
49
59
43
35
45
38
47
53
35
45
50
34
43
48
33
48
50
29
35
24
31

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

12
12
10
11
11
11
11
11
11
12
12
11
11
11
11
11
11
11
11
11
16
15
16
15

Dew Point (°C)

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

Relative Humidity (%)

84
89
86
86
84
82
82
79
77
79
77
76
76
75
74
70
69
63
58
54
57
59
63
64

Pressure (mb)

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

Ozone (du)

322
322
324
325
327
327
328
328
328
328
329
330
330
331
333
335
336
336
335
334
334
334
334
335

Thursday 18

Waning Crescent 1%

07:24

15:50

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: 07:36, Set: 16:43, Transit: 12:10. Moon - Rise: 07:24, Set: 15:50. Civil Dark: 17:15 - 07:05. Nautical Dark: 17:50 - 06:29. Astro Dark: 18:24 - 05:55

Total Clouds (% Sky Obscured)

100
100
100
100
100
99
94
94
94
94
94
94
95
95
95
94
91
87
81

Low Clouds (% Sky Obscured)

24
31
38
45
43
41
38
36
33
30
43
56
68
50
34
17
30
44
57

Medium Clouds (% Sky Obscured)

91
75
58
41
29
17
5
5
4
3
24
45
66
73
79
85
90
87
81

High Clouds (% Sky Obscured)

96
97
99
100
100
99
79
70
70
70
75
75
85
77
64
53
60
68
75

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26

Precipitation Type

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

Precipitation Probability (%)

47
23
27
45
21
22
33
25
32
46
23
19
24
13
13
22
14
11
19

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

15
14
14
14
13
14
14
14
13
13
13
13
13
13
13
14
14
15
15

Feels Like (°C)

16
16
13
12
12
11
11
11
11
12
11
11
11
11
11
11
11
11
11

Dew Point (°C)

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

Relative Humidity (%)

64
66
63
62
60
59
58
58
57
58
58
59
59
59
60
60
60
57
55

Pressure (mb)

1024
1025
1025
1024
1024
1024
1024
1023
1023
1023
1023
1023
1023
1022
1023
1023
1023
1022
1022

Ozone (du)

337
338
339
340
341
340
339
339
338
337
336
337
338
338
339
340
341
340
339

Forecast for Civitavecchia, Province of Rome, Italy (42.09,11.80)

Generated: 12/12/25 18:49:55. Forecast: 12/12/25 to 18/12/25. Timezone: UTC+1.00