Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 12

Waning Crescent 21%

04:41

14:57

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 OK
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad

Sun - Rise: 06:12, Set: 19:51, Transit: 13:02. Moon - Rise: 04:41, Set: 14:57. Civil Dark: 20:25 - 05:38. Nautical Dark: 21:07 - 04:56. Astro Dark: 21:52 - 04:10

Total Clouds (% Sky Obscured)

100
100
99
98
100
97
96
94
92
89
84
74
54
68
24
66
80
96
100
98
100
100
100
100

Low Clouds (% Sky Obscured)

59
65
61
55
43
36
23
10
10
10
5
3
1
0
0
0
0
2
4
11
10
0
0
0

Medium Clouds (% Sky Obscured)

61
54
89
64
65
76
81
80
57
50
39
39
34
31
20
15
8
70
90
60
52
52
69
86

High Clouds (% Sky Obscured)

21
37
14
59
100
89
81
72
45
32
27
50
34
51
10
59
80
84
90
90
98
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 (%)

32
25
20
8
3
1
0
0
0
0
0
1
1
1
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
3
3
4
4
5
5
6
7
8
8
7
9
11
14
14
15
15
15
16
15
14
13

Chance of Frost

Temperature (°C)

9
9
8
8
8
8
8
8
8
8
7
7
7
8
10
13
15
16
18
18
18
18
18
17

Feels Like (°C)

7
7
5
6
6
6
5
5
5
4
3
3
3
4
6
8
9
11
12
13
13
13
13
12

Dew Point (°C)

6
6
5
5
5
5
5
5
5
3
1
0
1
0
1
3
4
5
6
6
7
7
7
7

Relative Humidity (%)

78
81
79
79
81
81
81
82
81
73
65
63
66
60
54
50
48
48
45
46
46
47
50
53

Pressure (mb)

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

Ozone (du)

342
341
341
341
340
340
343
351
355
354
351
351
350
352
355
354
351
348
346
346
350
351
352
350

Monday 13

Waning Crescent 13%

04:56

16:16

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
18 Bad

Sun - Rise: 06:10, Set: 19:53, Transit: 13:02. Moon - Rise: 04:56, Set: 16:16. Civil Dark: 20:27 - 05:35. Nautical Dark: 21:09 - 04:53. Astro Dark: 21:55 - 04:07

Total Clouds (% Sky Obscured)

100
100
82
79
93
99
100
100
100
84
90
100
100
96
97
99
95
93
99
97
95
97
100
100

Low Clouds (% Sky Obscured)

0
0
0
0
0
1
1
0
0
2
3
10
20
24
20
20
20
20
20
27
47
59
61
80

Medium Clouds (% Sky Obscured)

90
57
19
22
42
50
61
66
91
79
69
97
99
94
85
95
91
93
90
61
51
42
47
50

High Clouds (% Sky Obscured)

100
100
82
79
80
96
100
100
100
55
84
100
97
72
63
93
79
28
39
10
10
19
61
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
5
8
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
Light Rain
Light Rain
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
1
2
5
6
7
15
40
60
75
76
48
17
9
19
8
20

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.5
0.6
0
0
0
0
0
0

Wind Speed/Direction (mph)

12
10
9
8
8
7
6
5
4
4
4
4
4
4
5
5
5
6
7
7
6
7
9
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

6
5
5
5
5
5
5
6
6
6
6
7
6
7
8
10
12
12
14
15
14
15
14
14

Relative Humidity (%)

53
53
56
59
63
67
72
76
78
80
82
85
82
78
80
83
87
84
89
90
89
87
87
87

Pressure (mb)

1010
1011
1011
1011
1012
1012
1012
1012
1012
1012
1013
1013
1014
1015
1015
1015
1016
1016
1016
1017
1017
1018
1018
1019

Ozone (du)

350
350
352
353
354
354
355
355
356
357
358
358
360
362
364
369
369
369
368
370
373
373
371
369

Tuesday 14

Waning Crescent 6%

05:10

17:36

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

Sun - Rise: 06:07, Set: 19:54, Transit: 13:02. Moon - Rise: 05:10, Set: 17:36. Civil Dark: 20:28 - 05:33. Nautical Dark: 21:10 - 04:51. Astro Dark: 21:57 - 04:04

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
93
96
99
98
84
44
74
73
71
76
90
65
86
87
86
29
30

Low Clouds (% Sky Obscured)

84
63
67
68
84
80
82
82
83
94
95
82
44
74
60
43
43
44
33
51
55
58
17
16

Medium Clouds (% Sky Obscured)

46
66
81
81
75
55
45
34
28
36
33
29
27
30
21
13
22
24
19
22
27
56
29
30

High Clouds (% Sky Obscured)

100
84
98
100
70
24
20
14
0
0
0
0
0
0
0
0
1
0
1
1
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 (%)

10
8
10
9
7
6
4
2
1
0
3
0
0
0
0
1
4
2
14
1
4
3
6
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

13
12
10
9
8
8
7
7
6
6
5
5
5
5
3
3
4
4
5
5
5
5
5
5

Relative Humidity (%)

89
89
87
87
85
85
84
85
85
84
84
85
82
78
70
62
57
56
54
53
53
52
51
51

Pressure (mb)

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

Ozone (du)

367
368
370
369
372
376
378
380
381
382
383
381
381
385
392
395
395
397
399
399
399
400
401
401

Wednesday 15

Waning Crescent 2%

05:24

19:00

19 OK
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 OK
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad

Sun - Rise: 06:05, Set: 19:56, Transit: 13:01. Moon - Rise: 05:24, Set: 19:00. Civil Dark: 20:30 - 05:31. Nautical Dark: 21:12 - 04:49. Astro Dark: 21:59 - 04:01

Total Clouds (% Sky Obscured)

35
52
87
82
46
39
45
48
71
63
56
48
45
46
48
56
68
84
100
82
63
45
39
37

Low Clouds (% Sky Obscured)

15
20
40
35
24
30
45
41
48
41
42
38
30
33
40
53
47
44
45
45
45
45
39
37

Medium Clouds (% Sky Obscured)

35
46
50
74
44
39
45
45
51
37
5
29
1
22
23
20
27
25
20
30
30
30
24
26

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
14
48
45
46
23
0
22
47
80
57
25
0
0
0

ISS Passover

Visibility (miles)

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

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
Very Light Rain
None

Precipitation Probability (%)

8
24
27
25
14
1
0
1
2
11
22
16
14
2
8
15
28
36
27
26
27
35
44
35

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
0.2
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

13
12
10
8
8
8
7
7
6
5
5
6
6
6
7
9
9
9
10
10
11
11
11
11

Dew Point (°C)

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

Relative Humidity (%)

61
74
81
85
85
88
90
90
88
88
87
87
88
87
81
73
68
79
88
89
90
92
93
93

Pressure (mb)

1021
1021
1021
1022
1022
1022
1021
1021
1021
1021
1021
1021
1021
1022
1021
1021
1021
1021
1021
1021
1021
1020
1020
1020

Ozone (du)

398
394
395
396
395
391
383
374
371
370
368
366
365
365
367
368
368
366
364
362
360
358
355
354

Thursday 16

Waning Crescent 0%

05:40

19:00

19 Bad
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
17 Bad
18 Bad

Sun - Rise: 06:03, Set: 19:57, Transit: 13:01. Moon - Rise: 05:40, Set: 19:00. Civil Dark: 20:32 - 05:29. Nautical Dark: 21:14 - 04:46. Astro Dark: 22:02 - 03:58

Total Clouds (% Sky Obscured)

39
36
38
40
45
42
50
59
72
78
80
78
75
95
97
99
96
92
89
89
90
92
91
91

Low Clouds (% Sky Obscured)

39
35
35
34
40
5
45
49
53
59
54
51
49
66
65
64
63
58
57
58
63
65
60
65

Medium Clouds (% Sky Obscured)

25
17
24
20
15
15
15
17
16
23
17
13
13
31
27
21
24
21
21
19
14
13
13
14

High Clouds (% Sky Obscured)

0
0
1
1
1
2
2
0
0
0
0
0
0
31
49
67
58
49
40
31
23
16
12
8

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 (%)

17
4
18
4
2
4
16
24
3
1
14
4
10
17
19
20
20
20
19
20
17
6
12
12

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

Chance of Frost

Temperature (°C)

12
12
11
10
9
9
8
8
7
7
7
7
8
8
10
12
13
14
15
15
15
16
16
16

Feels Like (°C)

10
11
9
8
7
7
6
6
6
5
5
5
6
6
8
8
9
10
11
11
12
13
13
13

Dew Point (°C)

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

Relative Humidity (%)

93
95
93
93
95
93
93
93
93
93
94
94
94
93
83
76
70
64
60
57
57
57
58
58

Pressure (mb)

1020
1021
1021
1021
1021
1021
1021
1022
1022
1022
1022
1022
1023
1023
1022
1022
1022
1022
1021
1021
1021
1021
1020
1020

Ozone (du)

353
352
355
356
359
360
361
361
364
365
365
367
369
370
371
371
372
372
371
370
369
368
367
367

Friday 17

New Moon 2%

06:00

20:28

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

Sun - Rise: 06:01, Set: 19:59, Transit: 13:01. Moon - Rise: 06:00, Set: 20:28. Civil Dark: 20:34 - 05:27. Nautical Dark: 21:16 - 04:44. Astro Dark: 22:04 - 03:55

Total Clouds (% Sky Obscured)

90
89
83
75
66
57
47
46
42
37
37
33
36
37
34
37
42
44
42
45
49
53
61
71

Low Clouds (% Sky Obscured)

60
45
40
35
29
24
19
15
11
6
7
8
10
8
5
1
7
12
19
18
17
20
33
49

Medium Clouds (% Sky Obscured)

14
13
11
10
11
8
8
9
7
8
11
15
29
34
34
37
42
41
29
32
35
38
42
46

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
2
4
6
4
2
0
4
7
11
7
4
0
2
3
5
3
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 (%)

9
7
5
0
1
1
0
2
1
0
0
0
0
3
3
1
5
10
11
10
9
5
11
8

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

Chance of Frost

Temperature (°C)

14
14
13
12
10
10
9
7
7
6
6
6
7
8
10
12
13
14
15
16
16
16
16
15

Feels Like (°C)

12
12
10
10
9
9
9
8
6
6
7
6
7
6
9
10
10
11
12
13
15
15
14
14

Dew Point (°C)

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

Relative Humidity (%)

60
63
64
65
66
68
72
74
74
76
78
75
74
71
66
61
55
53
51
48
49
50
51
54

Pressure (mb)

1021
1021
1021
1021
1022
1022
1022
1022
1022
1022
1021
1022
1022
1022
1021
1021
1021
1020
1020
1019
1019
1019
1018
1019

Ozone (du)

368
368
369
370
370
371
373
374
372
371
370
369
369
368
368
367
367
367
367
367
367
367
367
368

Saturday 18

Waxing Crescent 6%

06:26

21:59

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 OK
11 Bad
12 Bad
13 Bad

Sun - Rise: 05:59, Set: 20:01, Transit: 13:01. Moon - Rise: 06:26, Set: 21:59. Civil Dark: 20:35 - 05:25. Nautical Dark: 21:18 - 04:41. Astro Dark: 22:07 - 03:52

Total Clouds (% Sky Obscured)

80
78
74
57
62
66
72
81
89
97
97
97
96
81
65
48
63
78
95

Low Clouds (% Sky Obscured)

63
53
39
22
31
36
42
44
45
45
40
45
50
39
33
27
25
25
21

Medium Clouds (% Sky Obscured)

46
53
48
54
50
43
43
41
40
45
55
62
69
45
29
21
31
40
50

High Clouds (% Sky Obscured)

0
27
57
57
54
28
1
20
40
65
72
80
84
56
28
0
28
56
84

ISS Passover

Visibility (miles)

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

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

2
2
2
0
0
0
0
0
0
0
0
0
0
0
0
0
1
4
8

Precipitation Amount (mm)

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

Chance of Frost

Temperature (°C)

14
14
13
12
11
11
11
11
11
10
10
11
11
11
13
15
17
17
18

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

60
64
66
71
75
73
72
71
72
72
74
71
69
68
62
55
49
49
48

Pressure (mb)

1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1018
1018
1018
1018
1018
1018
1018
1017
1017

Ozone (du)

369
370
371
371
371
371
370
370
370
370
370
371
372
373
374
376
377
378
380

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

Generated: 12/04/26 19:14:27. Forecast: 12/04/26 to 18/04/26. Timezone: UTC+2.00