Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 4

Waxing Gibbous 100%

15:01

07:22

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
01 Bad

Sun - Rise: 07:43, Set: 16:01, Transit: 11:52. Moon - Rise: 15:01, Set: 07:22. Civil Dark: 16:39 - 07:06. Nautical Dark: 17:20 - 06:25. Astro Dark: 17:59 - 05:46

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
100
100
100

Low Clouds (% Sky Obscured)

100
100
100
100
94
100
100
100
100
99
100
100
100
100
100
100
100
100
100
100
100
100
100
93

Medium Clouds (% Sky Obscured)

0
0
0
0
0
31
13
7
22
2
2
4
37
36
54
55
9
63
100
100
100
100
100
100

High Clouds (% Sky Obscured)

7
11
14
85
100
53
93
99
100
100
100
68
94
100
94
100
99
100
100
100
100
100
100
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
5

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
Light Rain

Precipitation Probability (%)

0
0
0
4
3
5
6
9
8
6
5
3
3
15
7
16
12
8
7
4
4
15
54
77

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
0.4

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-2
-2
-1
0
-0
-0
-0
0
1
1
1
1
2
1
1
1
1
2
2
2
2
2
2
2

Dew Point (°C)

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

Relative Humidity (%)

88
89
89
89
88
88
89
89
88
83
79
77
82
83
88
91
94
94
96
94
96
94
94
94

Pressure (mb)

1016
1015
1015
1015
1014
1014
1014
1014
1014
1014
1013
1012
1012
1012
1011
1011
1011
1011
1010
1010
1010
1009
1009
1009

Ozone (du)

269
270
273
276
277
280
284
286
286
287
290
293
295
297
298
297
296
297
296
297
295
295
296
298

Friday 5

Full Moon 98%

15:54

08:48

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
01 Bad

Sun - Rise: 07:45, Set: 16:01, Transit: 11:53. Moon - Rise: 15:54, Set: 08:48. Civil Dark: 16:38 - 07:07. Nautical Dark: 17:20 - 06:26. Astro Dark: 17:59 - 05:47

Total Clouds (% Sky Obscured)

100
98
98
98
99
99
100
100
100
86
77
97
99
100
100
98
99
93
100
99
96
92
89
97

Low Clouds (% Sky Obscured)

96
90
92
91
97
97
100
100
100
78
74
76
87
90
91
85
76
73
65
81
82
87
83
95

Medium Clouds (% Sky Obscured)

100
79
69
47
44
42
51
57
56
57
66
42
44
29
24
25
21
36
40
50
53
19
18
3

High Clouds (% Sky Obscured)

82
11
12
5
17
16
1
38
65
17
10
63
81
95
100
93
97
88
100
96
91
75
75
80

ISS Passover

Visibility (miles)

5
6
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
3
1
1
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
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

95
78
52
44
30
23
23
18
16
26
28
21
7
2
1
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0.9
0.5
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

96
96
96
96
96
96
96
93
88
83
80
78
76
76
78
77
77
77
79
82
83
82
83
82

Pressure (mb)

1009
1009
1009
1009
1009
1010
1010
1011
1012
1012
1012
1013
1013
1014
1015
1015
1015
1016
1016
1017
1017
1017
1017
1017

Ozone (du)

298
299
300
301
300
300
299
295
292
292
293
294
298
302
309
315
317
315
314
312
312
318
325
328

Saturday 6

Waning Gibbous 94%

17:05

09:57

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
01 Bad

Sun - Rise: 07:46, Set: 16:00, Transit: 11:53. Moon - Rise: 17:05, Set: 09:57. Civil Dark: 16:38 - 07:08. Nautical Dark: 17:19 - 06:27. Astro Dark: 17:59 - 05:48

Total Clouds (% Sky Obscured)

96
94
100
100
95
95
100
100
100
100
100
100
100
99
97
100
94
88
81
74
80
85
91
92

Low Clouds (% Sky Obscured)

93
71
75
67
53
26
20
13
13
19
40
79
76
57
73
59
77
66
56
11
2
2
2
17

Medium Clouds (% Sky Obscured)

1
0
0
0
0
0
0
0
17
41
98
100
93
97
55
35
25
24
15
9
66
71
83
85

High Clouds (% Sky Obscured)

8
24
100
100
94
83
100
100
100
100
100
100
100
19
46
100
65
70
75
74
70
60
60
60

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
2
32
33
7
1
0
0
0
0
1
0
0
5

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

0
0
0
-1
-1
-1
-1
-2
-1
0
1
1
2
2
2
1
1
1
1
1
1
1
1
1

Dew Point (°C)

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

Relative Humidity (%)

82
82
82
80
80
81
84
83
79
75
73
71
72
73
76
75
79
79
79
82
86
88
89
89

Pressure (mb)

1017
1016
1016
1016
1016
1015
1015
1016
1015
1015
1014
1014
1014
1014
1014
1014
1014
1014
1015
1015
1015
1015
1015
1015

Ozone (du)

334
336
330
326
332
338
335
330
324
321
314
307
308
307
308
308
306
304
303
302
299
299
300
302

Sunday 7

Waning Gibbous 94%

18:29

10:45

02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 OK
11 Bad
12 OK
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

Sun - Rise: 07:47, Set: 16:00, Transit: 11:53. Moon - Rise: 18:29, Set: 10:45. Civil Dark: 16:38 - 07:09. Nautical Dark: 17:19 - 06:28. Astro Dark: 17:58 - 05:48

Total Clouds (% Sky Obscured)

92
96
95
88
93
90
87
47
45
47
36
44
60
57
71
66
61
71
81
92
85
80
76
84

Low Clouds (% Sky Obscured)

35
49
50
78
83
73
64
34
36
40
36
44
59
56
50
44
52
52
47
46
42
39
40
40

Medium Clouds (% Sky Obscured)

83
90
88
41
42
36
31
31
20
13
1
0
0
0
1
25
20
48
65
83
66
45
36
52

High Clouds (% Sky Obscured)

55
50
50
6
3
3
0
0
0
3
3
0
0
2
37
35
28
26
37
39
32
42
54
71

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 (%)

5
4
5
4
1
3
5
4
3
2
2
2
1
2
3
4
11
28
10
17
9
6
4
5

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

89
89
89
90
90
88
86
85
81
77
75
73
75
79
84
87
88
86
90
90
88
88
86
88

Pressure (mb)

1015
1016
1016
1016
1016
1016
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1018
1017
1018
1018
1017
1017
1017

Ozone (du)

304
304
304
304
303
303
303
305
308
308
309
304
294
290
288
287
283
281
282
281
280
280
278
276

Monday 8

Waning Gibbous 86%

19:56

11:18

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
01 Bad

Sun - Rise: 07:48, Set: 16:00, Transit: 11:54. Moon - Rise: 19:56, Set: 11:18. Civil Dark: 16:38 - 07:10. Nautical Dark: 17:19 - 06:29. Astro Dark: 17:58 - 05:49

Total Clouds (% Sky Obscured)

93
100
100
100
100
100
100
100
100
100
100
99
99
98
98
99
98
98
98
97
98
99
100
100

Low Clouds (% Sky Obscured)

45
53
68
79
90
92
94
97
98
99
93
93
94
96
94
91
89
77
65
53
57
61
69
70

Medium Clouds (% Sky Obscured)

66
82
87
92
100
98
97
96
97
97
98
90
82
74
66
62
57
64
72
81
76
68
55
55

High Clouds (% Sky Obscured)

82
97
100
100
98
98
97
96
81
69
67
73
74
75
75
55
40
41
53
70
72
77
89
71

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

7
24
52
60
92
95
95
81
69
62
42
59
40
30
21
18
9
12
9
4
9
14
17
27

Precipitation Amount (mm)

0
0
0.2
0.2
0.6
0.7
0.9
0.4
0.3
0.2
0
0.2
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

89
86
88
88
88
90
93
94
90
90
90
87
87
87
88
88
88
88
88
88
88
87
87
85

Pressure (mb)

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

Ozone (du)

275
275
275
277
276
277
280
281
282
288
288
287
288
288
289
287
286
284
284
285
285
285
284
283

Tuesday 9

Waning Gibbous 77%

21:19

11:41

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
01 Bad

Sun - Rise: 07:49, Set: 16:00, Transit: 11:54. Moon - Rise: 21:19, Set: 11:41. Civil Dark: 16:38 - 07:11. Nautical Dark: 17:19 - 06:30. Astro Dark: 17:58 - 05:50

Total Clouds (% Sky Obscured)

100
100
97
94
91
93
96
99
99
99
99
99
100
100
97
94
91
91
92
92
91
90
89
92

Low Clouds (% Sky Obscured)

71
73
74
73
73
64
57
45
45
40
43
34
28
23
15
8
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

62
68
65
63
58
47
39
34
38
43
46
35
26
12
19
20
25
36
42
48
46
49
45
48

High Clouds (% Sky Obscured)

46
31
30
38
46
60
78
94
91
87
84
89
95
100
82
65
47
52
57
64
58
62
58
72

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
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

Precipitation Probability (%)

40
46
35
27
19
10
5
1
1
0
0
0
0
0
9
14
20
20
15
6
4
2
1
3

Precipitation Amount (mm)

0
0.2
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

87
90
90
91
91
90
90
90
90
87
86
83
84
87
88
90
90
91
90
91
91
91
91
93

Pressure (mb)

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

Ozone (du)

286
288
290
292
295
297
297
298
299
300
300
301
301
301
300
299
298
296
295
293
292
292
291
291

Wednesday 10

Waning Gibbous 67%

22:37

11:58

Sun - Rise: 07:50, Set: 16:00, Transit: 11:55. Moon - Rise: 22:37, Set: 11:58. Civil Dark: 16:38 - 07:12. Nautical Dark: 17:19 - 06:31. Astro Dark: 17:58 - 05:51

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 Královské Vinohrady, Praha 2, Czech Republic (50.08,14.44)

Generated: 04/12/25 02:41:04. Forecast: 04/12/25 to 10/12/25. Timezone: UTC+1.00