Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 22

Waxing Crescent 6%

09:38

18:49

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
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad

Sun - Rise: 07:34, Set: 16:42, Transit: 12:08. Moon - Rise: 09:38, Set: 18:49. Civil Dark: 17:14 - 07:03. Nautical Dark: 17:49 - 06:28. Astro Dark: 18:23 - 05:54

Total Clouds (% Sky Obscured)

87
90
93
98
95
96
98
96
88
74
75
70
93
93
78
97
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

21
54
79
77
74
78
80
79
74
59
75
69
67
71
46
70
76
75
69
70
62
37
32
58

Medium Clouds (% Sky Obscured)

85
81
54
49
48
47
49
85
53
30
21
34
27
40
54
88
95
46
41
76
100
58
100
96

High Clouds (% Sky Obscured)

45
35
41
73
28
44
74
0
23
0
0
0
65
58
78
97
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
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
1
1
2
2
2
2
2
3
5
6
9
15
21
35
39
52
61
45
37
25
25
19
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
4
4
3
3
3
4
4
4
4
5
5
5
6
7
8
8
7
6
5
5
5
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

55
54
52
49
48
47
45
45
50
53
59
58
53
52
53
56
55
57
61
62
64
63
64
63

Pressure (mb)

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

Ozone (du)

304
309
316
319
322
323
320
320
319
319
320
322
334
353
366
373
364
357
363
365
369
377
377
377

Tuesday 23

Waxing Crescent 12%

10:09

19:56

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
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad

Sun - Rise: 07:35, Set: 16:43, Transit: 12:09. Moon - Rise: 10:09, Set: 19:56. Civil Dark: 17:15 - 07:03. Nautical Dark: 17:50 - 06:29. Astro Dark: 18:24 - 05:55

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
70
82
96
100
100

Low Clouds (% Sky Obscured)

57
65
58
49
63
77
70
50
43
71
77
29
73
67
76
66
54
57
17
32
51
57
74
38

Medium Clouds (% Sky Obscured)

88
40
61
95
93
93
100
86
100
100
100
100
100
100
100
100
100
91
93
52
51
50
45
40

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
92
100
100
100
100
70
82
96
100
100

ISS Passover

Visibility (miles)

9
9
9
7
9
9
6
8
9
9
9
9
9
8
2
2
3
1
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
Light Rain
Light Rain
None
None
None
Very Light Rain
Light Rain
Light Rain
Moderate Rain
Light Rain
Moderate Rain
Light Rain
None
None
Very Light Rain
None
None
None

Precipitation Probability (%)

20
30
46
51
54
80
95
95
76
63
67
81
93
95
95
95
95
95
59
58
73
54
47
61

Precipitation Amount (mm)

0
0
0
0
0
0
0.7
0.6
0
0
0
0.3
0.4
0.7
2.7
1.4
2.7
1.1
0
0
0.3
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

63
64
64
75
79
80
79
84
78
79
77
77
79
81
88
93
91
95
88
87
81
80
81
78

Pressure (mb)

1009
1009
1009
1009
1009
1008
1008
1008
1007
1007
1007
1007
1007
1007
1007
1007
1007
1007
1006
1007
1007
1006
1006
1006

Ozone (du)

384
385
387
391
396
398
398
395
397
402
406
409
414
416
414
411
409
407
409
407
405
404
405
402

Wednesday 24

Waxing Crescent 19%

10:35

21:04

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
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad

Sun - Rise: 07:35, Set: 16:44, Transit: 12:09. Moon - Rise: 10:35, Set: 21:04. Civil Dark: 17:15 - 07:04. Nautical Dark: 17:50 - 06:29. Astro Dark: 18:24 - 05:55

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
97
100
100
100
100
100
100
100
99
91
81
87
98
81
86
75
65

Low Clouds (% Sky Obscured)

26
19
30
72
52
52
66
58
53
76
73
83
43
22
22
26
59
29
45
56
3
2
3
2

Medium Clouds (% Sky Obscured)

61
100
100
100
100
100
100
92
100
100
100
100
100
100
100
67
77
63
61
56
48
43
28
29

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
97
100
100
100
100
100
100
100
99
91
81
87
98
81
67
35
12

ISS Passover

Visibility (miles)

8
9
9
7
5
7
8
7
7
6
7
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
Very Light Rain
Light Rain
Light Rain
Moderate Rain
Moderate Rain
Moderate Rain
Light Rain
Light Rain
Light Rain
Light Rain
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

67
69
73
88
95
95
95
95
95
95
95
90
83
60
49
59
47
43
34
38
27
39
39
18

Precipitation Amount (mm)

0
0
0
0.3
0.9
1.8
2.5
3.5
2.9
1.4
0.7
0.5
0.4
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

80
83
81
79
77
72
70
70
72
75
77
73
73
74
74
74
76
77
77
77
76
76
76
74

Pressure (mb)

1006
1006
1007
1007
1007
1007
1007
1007
1007
1008
1008
1008
1009
1010
1010
1011
1011
1012
1012
1013
1013
1013
1013
1014

Ozone (du)

402
403
406
409
411
414
418
418
416
416
418
423
426
426
427
432
434
433
430
427
426
424
422
420

Thursday 25

Waxing Crescent 28%

10:58

22:12

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 OK
21 Bad
22 Bad
23 Bad
00 Bad
01 OK
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad

Sun - Rise: 07:36, Set: 16:44, Transit: 12:10. Moon - Rise: 10:58, Set: 22:12. Civil Dark: 17:16 - 07:04. Nautical Dark: 17:51 - 06:29. Astro Dark: 18:25 - 05:55

Total Clouds (% Sky Obscured)

64
61
57
59
62
63
76
88
100
88
50
72
61
11
45
40
45
40
45
50
55
60
60
60

Low Clouds (% Sky Obscured)

4
15
12
3
3
0
1
3
1
0
7
55
55
3
4
11
45
40
32
40
40
38
15
6

Medium Clouds (% Sky Obscured)

64
61
57
59
62
63
14
60
55
63
18
7
4
0
45
40
45
21
18
2
2
3
50
60

High Clouds (% Sky Obscured)

21
21
20
12
5
28
52
76
100
73
27
15
10
5
0
21
31
40
45
50
55
60
60
60

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
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
0
0
0
0
0
0
0

Precipitation Type

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

Precipitation Probability (%)

19
16
8
11
10
9
11
9
3
2
3
4
7
8
11
33
27
15
2
0
0
0
0
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

74
73
69
64
55
50
48
45
49
55
60
63
64
65
65
66
73
74
70
67
64
64
63
63

Pressure (mb)

1014
1015
1015
1016
1016
1016
1016
1016
1016
1016
1016
1017
1017
1018
1018
1019
1019
1019
1019
1019
1019
1019
1019
1019

Ozone (du)

420
420
419
420
423
423
419
417
417
417
421
420
416
410
408
412
410
408
407
404
399
396
392
391

Friday 26

Waxing Crescent 38%

11:19

23:21

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
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad

Sun - Rise: 07:36, Set: 16:45, Transit: 12:10. Moon - Rise: 11:19, Set: 23:21. Civil Dark: 17:16 - 07:04. Nautical Dark: 17:52 - 06:30. Astro Dark: 18:25 - 05:56

Total Clouds (% Sky Obscured)

55
55
60
62
63
65
67
70
73
75
76
78
89
92
93
93
95
93
91
87
78
75
67
62

Low Clouds (% Sky Obscured)

2
1
1
1
1
1
1
2
10
6
16
13
3
4
5
6
7
9
7
5
3
2
1
0

Medium Clouds (% Sky Obscured)

55
55
60
62
63
65
67
70
73
75
76
78
89
92
93
93
93
93
78
63
48
35
21
8

High Clouds (% Sky Obscured)

55
55
60
62
63
65
67
70
58
60
50
45
72
44
16
34
51
69
75
82
78
75
67
62

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
0
0
0
1
0
1
1
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
4
4
4
4
4
5
4
4
3
3
4
5
5
5
5
5
6
6
6
5
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

63
62
59
54
48
45
44
44
46
51
56
58
59
59
61
63
62
61
61
62
62
62
63
63

Pressure (mb)

1019
1020
1020
1020
1020
1020
1020
1019
1019
1019
1019
1019
1020
1021
1021
1022
1022
1022
1022
1022
1022
1022
1022
1022

Ozone (du)

388
382
377
375
371
366
362
358
355
351
349
348
347
344
341
338
336
334
333
332
331
330
329
328

Saturday 27

First Quarter 49%

11:40

00:31

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

Sun - Rise: 07:36, Set: 16:46, Transit: 12:11. Moon - Rise: 11:40, Set: 00:31. Civil Dark: 17:17 - 07:05. Nautical Dark: 17:52 - 06:30. Astro Dark: 18:26 - 05:56

Total Clouds (% Sky Obscured)

53
53
48
44
42
37
46
55
64
47
40
33
20
10
0
0
0
0
0
0
0
0
0
0

Low 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

Medium Clouds (% Sky Obscured)

7
6
5
5
4
4
10
15
20
19
19
17
11
5
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

53
53
48
43
39
37
46
55
64
47
40
33
20
10
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 (%)

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)

5
5
5
5
4
4
4
4
4
4
4
3
3
3
3
3
3
3
3
3
3
3
3
4

Chance of Frost

Temperature (°C)

8
9
10
11
12
13
14
14
13
13
12
11
10
9
8
8
8
7
7
7
7
6
6
6

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

64
61
58
55
52
49
46
49
52
56
60
64
68
69
71
73
73
73
75
74
74
74
71
71

Pressure (mb)

1023
1023
1023
1024
1024
1023
1023
1023
1023
1023
1023
1023
1022
1022
1022
1022
1022
1022
1021
1021
1021
1020
1020
1019

Ozone (du)

327
327
326
325
324
323
323
321
319
317
317
317
317
317
318
318
316
314
313
312
312
311
311
311

Sunday 28

Waxing Gibbous 61%

12:02

01:44

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

Sun - Rise: 07:37, Set: 16:46, Transit: 12:11. Moon - Rise: 12:02, Set: 01:44. Civil Dark: 17:18 - 07:05. Nautical Dark: 17:53 - 06:30. Astro Dark: 18:27 - 05:56

Total Clouds (% Sky Obscured)

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

Low Clouds (% Sky Obscured)

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

Medium Clouds (% Sky Obscured)

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

ISS Passover

Visibility (miles)

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

Precipitation Type

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
3
4
3

Precipitation Amount (mm)

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
4
5
4
4
4
3
3
3
3
4
4
4
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

70
65
61
57
56
55
54
59
64
70
73
77
78
80
81
82
81
79

Pressure (mb)

1019
1019
1019
1019
1018
1017
1016
1015
1015
1014
1014
1014
1014
1014
1014
1014
1014
1014

Ozone (du)

311
312
312
312
311
310
309
309
309
309
312
314
317
319
322
324
330
335

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

Generated: 22/12/25 07:08:31. Forecast: 22/12/25 to 28/12/25. Timezone: UTC+1.00