Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 12

Waning Crescent 25%

04:38

11:28

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
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad

Sun - Rise: 07:16, Set: 17:15, Transit: 12:16. Moon - Rise: 04:38, Set: 11:28. Civil Dark: 17:48 - 06:43. Nautical Dark: 18:26 - 06:05. Astro Dark: 19:04 - 05:27

Total Clouds (% Sky Obscured)

91
91
94
87
100
100
99
100
100
100
100
100
97
87
100
100
100
100
99
88
99
100
100
83

Low Clouds (% Sky Obscured)

45
45
24
22
16
1
72
71
83
80
88
82
62
50
46
38
42
5
51
64
82
93
100
62

Medium Clouds (% Sky Obscured)

53
44
23
27
96
72
98
100
100
93
97
99
86
74
94
100
100
93
77
71
97
100
99
56

High Clouds (% Sky Obscured)

23
65
78
74
93
100
67
32
86
100
100
100
74
68
100
100
100
99
46
7
70
75
14
37

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
4
7
9
9
9
9
9
9
9
9
9
9
8
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
Very Light Rain
Very Light Rain
Light Rain
None
None
None
None
None
None
None
None
None
None
Very Light Rain
None
Very Light Rain
Very Light Rain

Precipitation Probability (%)

1
0
1
0
0
4
23
58
76
70
51
40
11
2
0
0
1
1
24
41
70
59
62
57

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

11
10
9
7
6
6
5
5
4
6
5
6
8
7
8
7
6
6
8
11
12
14
14
15

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

84
87
88
90
91
90
88
88
86
86
90
84
69
68
72
74
78
79
77
84
84
90
87
74

Pressure (mb)

987
986
985
985
984
984
984
984
984
984
983
983
982
982
982
982
983
983
984
984
984
984
985
986

Ozone (du)

395
391
386
384
373
364
355
355
353
353
357
363
369
376
385
397
410
422
423
433
435
434
437
435

Friday 13

Waning Crescent 17%

05:28

12:26

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 OK
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad

Sun - Rise: 07:15, Set: 17:16, Transit: 12:16. Moon - Rise: 05:28, Set: 12:26. Civil Dark: 17:50 - 06:41. Nautical Dark: 18:28 - 06:03. Astro Dark: 19:05 - 05:26

Total Clouds (% Sky Obscured)

66
73
77
66
94
96
100
99
100
96
97
99
79
85
87
48
39
64
99
100
94
67
77
94

Low Clouds (% Sky Obscured)

48
51
65
40
71
60
65
80
85
83
77
65
57
59
25
5
3
38
28
50
56
34
60
79

Medium Clouds (% Sky Obscured)

11
26
0
6
76
55
67
65
42
64
70
49
51
63
60
41
33
49
43
55
58
17
24
43

High Clouds (% Sky Obscured)

27
4
3
4
40
83
100
97
100
88
89
94
6
55
74
4
5
4
29
74
85
67
4
5

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
14

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 (%)

18
6
2
4
7
9
17
23
16
19
23
23
20
33
13
6
4
5
11
9
7
4
3
2

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)

14
12
13
13
13
14
11
12
11
12
14
14
14
14
14
12
10
9
7
5
4
3
3
3

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

71
76
79
76
76
79
88
86
88
84
79
84
81
78
74
74
75
85
88
85
86
86
86
88

Pressure (mb)

987
988
988
988
989
989
990
990
990
990
991
991
991
991
991
991
992
993
993
993
994
994
994
995

Ozone (du)

432
429
432
430
432
431
437
431
423
418
416
413
414
416
423
426
431
436
438
442
442
442
440
439

Saturday 14

Waning Crescent 10%

06:08

13:34

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
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad

Sun - Rise: 07:13, Set: 17:18, Transit: 12:16. Moon - Rise: 06:08, Set: 13:34. Civil Dark: 17:52 - 06:39. Nautical Dark: 18:30 - 06:02. Astro Dark: 19:07 - 05:24

Total Clouds (% Sky Obscured)

97
99
92
92
100
98
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

85
75
78
90
97
95
89
88
91
91
95
96
95
93
92
87
79
73
75
79
83
80
78
77

Medium Clouds (% Sky Obscured)

54
53
74
40
42
42
96
97
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

High Clouds (% Sky Obscured)

46
75
10
8
61
76
87
100
98
98
100
100
100
100
100
100
100
100
100
100
100
100
100
100

ISS Passover

Visibility (miles)

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

Fog (%)

21
70
34
13
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
Snow
Snow
Snow
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

5
2
2
3
5
21
23
23
32
43
46
48
37
46
45
40
28
32
36
32
16
16
17
15

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0.1
0.1
0.1
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

3
3
4
5
6
8
9
9
11
12
12
12
13
13
13
13
13
13
13
13
13
12
12
12

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

1
2
1
1
-0
-2
-3
-3
-4
-5
-5
-5
-5
-5
-6
-6
-6
-6
-7
-7
-7
-7
-8
-8

Dew Point (°C)

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

Relative Humidity (%)

88
89
89
93
93
96
91
84
80
77
73
71
71
74
75
74
75
77
78
81
78
77
76
78

Pressure (mb)

995
996
996
997
998
998
1000
1001
1002
1003
1004
1005
1005
1006
1007
1008
1010
1011
1012
1013
1014
1015
1016
1017

Ozone (du)

442
440
438
436
435
435
434
433
432
433
438
442
444
442
441
441
440
438
436
436
435
433
432
430

Sunday 15

Waning Crescent 5%

06:37

14:49

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

Sun - Rise: 07:11, Set: 17:20, Transit: 12:15. Moon - Rise: 06:37, Set: 14:49. Civil Dark: 17:53 - 06:38. Nautical Dark: 18:31 - 06:00. Astro Dark: 19:09 - 05:22

Total Clouds (% Sky Obscured)

98
96
94
65
47
42
39
34
24
30
35
37
33
29
26
31
34
34
42
45
58
46
84
66

Low Clouds (% Sky Obscured)

83
73
78
52
46
42
39
30
22
28
33
35
29
25
23
21
20
20
14
7
0
0
0
0

Medium Clouds (% Sky Obscured)

82
67
40
3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
16
32
46
46
78
64

High Clouds (% Sky Obscured)

82
63
45
12
0
0
0
0
0
0
0
0
0
0
0
7
14
21
22
24
30
17
23
1

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 (%)

15
9
5
5
2
1
1
2
1
1
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)

12
11
11
10
10
10
10
10
11
10
9
8
7
6
5
5
5
6
7
6
6
8
8
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-5
-6
-6
-6
-7
-7
-7
-8
-9
-9
-11
-11
-11
-12
-12
-12
-10
-9
-9
-9
-8
-9
-10
-11

Relative Humidity (%)

78
76
78
76
78
76
76
72
65
58
50
46
43
41
40
41
51
57
58
62
64
63
57
55

Pressure (mb)

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

Ozone (du)

429
428
429
432
434
431
429
431
432
428
421
413
405
403
401
398
399
399
397
395
393
394
398
401

Monday 16

Waning Crescent 1%

06:59

16:08

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

Sun - Rise: 07:09, Set: 17:22, Transit: 12:15. Moon - Rise: 06:59, Set: 16:08. Civil Dark: 17:55 - 06:36. Nautical Dark: 18:33 - 05:58. Astro Dark: 19:10 - 05:21

Total Clouds (% Sky Obscured)

78
44
48
100
100
100
100
100
100
94
88
81
86
92
97
98
99
99
94
88
80
84
87
91

Low Clouds (% Sky Obscured)

0
0
0
11
22
33
38
42
48
61
74
81
86
90
92
89
85
80
74
67
62
63
63
67

Medium Clouds (% Sky Obscured)

77
44
45
85
99
65
67
80
92
85
65
55
56
62
65
70
77
85
84
85
80
84
87
91

High Clouds (% Sky Obscured)

28
44
48
80
62
60
100
100
100
93
88
81
86
80
71
40
16
1
2
2
6
7
9
20

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
6
3
0
0
0
0
0
0
0
0
0
0
0
0

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
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
None
Snow
Snow
Snow

Precipitation Probability (%)

0
0
0
0
0
0
53
63
70
65
62
62
65
67
63
61
60
56
54
48
37
51
58
60

Precipitation Amount (mm)

0
0
0
0
0
0
0.2
0.3
0.4
0.3
0.3
0.3
0.3
0.3
0.3
0.2
0.2
0.2
0.2
0.1
0
0.1
0.2
0.2

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-11
-10
-10
-10
-11
-11
-11
-12
-12
-13
-10
-8
-5
-4
-3
-1
-1
-1
-0
-0
0
0
0
1

Relative Humidity (%)

56
58
59
59
59
59
60
55
50
46
55
64
76
81
87
94
94
96
98
96
98
98
98
98

Pressure (mb)

1015
1014
1013
1012
1011
1010
1009
1006
1005
1005
1004
1003
1002
1002
1001
1001
1000
1000
1000
1000
1000
1000
1000
1000

Ozone (du)

399
395
394
393
390
386
387
386
385
383
387
392
396
398
401
403
407
410
414
412
411
409
410
411

Tuesday 17

New Moon 0%

07:17

17:27

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
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad

Sun - Rise: 07:07, Set: 17:23, Transit: 12:15. Moon - Rise: 07:17, Set: 17:27. Civil Dark: 17:57 - 06:34. Nautical Dark: 18:34 - 05:56. Astro Dark: 19:12 - 05:19

Total Clouds (% Sky Obscured)

93
97
100
100
100
100
99
98
97
95
95
96
81
66
52
45
38
37
55
74
93
93
94
94

Low Clouds (% Sky Obscured)

67
67
71
78
85
91
82
65
52
54
58
64
56
48
40
28
17
6
28
50
72
72
72
69

Medium Clouds (% Sky Obscured)

93
97
100
100
100
100
94
94
94
95
95
95
77
58
39
31
25
16
12
11
10
22
33
47

High Clouds (% Sky Obscured)

24
23
13
4
4
0
0
0
0
0
0
0
0
1
3
6
13
14
13
12
15
15
10
10

ISS Passover

Visibility (miles)

0
0
1
1
4
7
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

Snow
Snow
Snow
Snow
Snow
Snow
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

63
63
59
58
57
55
46
35
13
14
13
14
20
24
25
26
26
23
19
16
13
15
18
12

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

11
12
13
14
15
15
16
16
15
15
15
14
14
12
11
10
9
8
9
9
9
10
10
10

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

1
1
1
1
1
0
-1
0
0
0
1
1
1
1
1
1
1
0
0
1
1
1
1
1

Relative Humidity (%)

100
96
96
94
89
86
82
82
80
80
79
76
75
75
76
76
80
85
91
91
91
91
91
93

Pressure (mb)

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

Ozone (du)

412
413
414
416
417
418
419
420
421
422
413
405
396
388
379
371
367
363
359
357
355
353
351
349

Wednesday 18

Waxing Crescent 1%

07:31

18:46

Sun - Rise: 07:05, Set: 17:25, Transit: 12:15. Moon - Rise: 07:31, Set: 18:46. Civil Dark: 17:58 - 06:32. Nautical Dark: 18:36 - 05:55. Astro Dark: 19:13 - 05:17

Total Clouds (% Sky Obscured)

Low Clouds (% Sky Obscured)

Medium Clouds (% Sky Obscured)

High Clouds (% Sky Obscured)

ISS Passover

Visibility (miles)

Fog (%)

Precipitation Type

Precipitation Probability (%)

Precipitation Amount (mm)

Wind Speed/Direction (mph)

Chance of Frost

Temperature (°C)

Feels Like (°C)

Dew Point (°C)

Relative Humidity (%)

Pressure (mb)

Ozone (du)

Forecast for Letňany, Praha 18, Czech Republic (50.14,14.52)

Generated: 12/02/26 00:54:40. Forecast: 12/02/26 to 18/02/26. Timezone: UTC+1.00