Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 19

Waxing Crescent 14%

07:03

23:30

19 Bad
20 Bad
21 Bad
22 OK
23 Bad
00 Good
01 OK
02 OK
03 OK
04 OK
05 OK
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: 05:57, Set: 20:02, Transit: 13:01. Moon - Rise: 07:03, Set: 23:30. Civil Dark: 20:37 - 05:23. Nautical Dark: 21:20 - 04:39. Astro Dark: 22:09 - 03:49

Total Clouds (% Sky Obscured)

73
82
86
34
73
13
22
20
31
26
37
75
55
93
85
86
95
95
96
100
99
100
100
100

Low Clouds (% Sky Obscured)

69
48
57
34
36
1
22
20
31
26
37
45
24
80
62
63
66
30
69
52
53
71
54
74

Medium Clouds (% Sky Obscured)

30
37
24
32
8
13
19
10
28
9
27
2
11
6
10
47
58
92
81
100
98
100
100
73

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
3
3
14
55
49
2
3
70
75
75
97
71
51
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
8
4
7
8
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
None
None
None
None
None
None
None
None
None
None
None
None
None
Very Light Rain
Very Light Rain
Very Light Rain
None
None

Precipitation Probability (%)

1
12
3
3
1
0
0
0
1
1
1
1
1
1
4
8
16
35
55
65
65
59
46
45

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

6
5
5
5
5
3
3
4
4
4
3
4
2
2
2
2
1
3
3
7
9
9
7
7

Relative Humidity (%)

76
74
77
78
82
73
78
85
85
84
81
83
71
66
63
57
51
55
57
73
83
87
87
95

Pressure (mb)

1015
1016
1017
1017
1017
1017
1017
1017
1017
1017
1016
1016
1016
1016
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015

Ozone (du)

399
401
404
409
411
410
409
408
408
409
410
413
417
423
427
429
427
425
425
425
423
424
427
427

Monday 20

Waxing Crescent 23%

07:56

00:52

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: 05:55, Set: 20:04, Transit: 13:00. Moon - Rise: 07:56, Set: 00:52. Civil Dark: 20:39 - 05:20. Nautical Dark: 21:22 - 04:37. Astro Dark: 22:12 - 03:47

Total Clouds (% Sky Obscured)

99
99
100
100
100
98
97
97
100
100
99
96
95
96
94
84
71
93
90
100
74
75
70
76

Low Clouds (% Sky Obscured)

92
89
88
85
81
88
85
92
98
98
94
86
68
63
55
63
33
38
20
20
20
25
25
22

Medium Clouds (% Sky Obscured)

66
56
62
69
51
40
38
50
38
36
31
44
47
47
80
67
53
87
90
52
24
26
21
37

High Clouds (% Sky Obscured)

0
0
0
0
0
0
4
4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

0
0
0
0
0
0
0
0
5
9
9
9
9
9
9
4
9
8
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

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

Precipitation Probability (%)

55
58
47
43
45
41
27
17
17
17
26
27
31
31
35
48
45
42
25
6
5
2
26
18

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

7
7
6
6
5
5
5
5
5
5
5
6
6
6
7
8
10
12
12
13
13
13
12
12

Feels Like (°C)

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

Dew Point (°C)

7
6
5
5
5
5
5
5
5
4
4
4
4
4
5
5
6
5
4
1
0
1
-0
1

Relative Humidity (%)

96
94
96
94
96
96
96
98
94
93
93
91
90
91
88
84
78
62
57
44
41
43
42
48

Pressure (mb)

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

Ozone (du)

425
424
422
420
419
418
418
419
418
416
414
414
413
415
417
416
413
411
409
406
406
407
410
416

Tuesday 21

Waxing Crescent 34%

09:06

01:56

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

Sun - Rise: 05:53, Set: 20:05, Transit: 13:00. Moon - Rise: 09:06, Set: 01:56. Civil Dark: 20:40 - 05:18. Nautical Dark: 21:24 - 04:34. Astro Dark: 22:14 - 03:44

Total Clouds (% Sky Obscured)

65
25
22
30
66
48
13
62
56
70
53
32
4
15
11
20
16
17
18
23
41
51
91
85

Low Clouds (% Sky Obscured)

23
2
1
6
25
20
6
29
22
35
33
28
2
2
0
0
2
2
2
2
2
2
31
43

Medium Clouds (% Sky Obscured)

26
25
22
24
11
2
0
7
18
10
0
1
0
11
4
14
10
6
14
23
34
48
79
14

High Clouds (% Sky Obscured)

0
0
1
4
4
0
0
0
0
0
0
0
0
0
7
4
4
7
4
4
18
20
70
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 (%)

6
0
0
10
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)

9
7
6
4
3
2
2
2
3
3
2
3
3
4
6
8
9
10
10
10
11
11
12
11

Chance of Frost

Temperature (°C)

11
9
8
7
6
6
6
5
4
4
4
3
3
5
7
9
11
12
13
14
14
14
14
14

Feels Like (°C)

6
6
6
6
5
3
4
4
0
1
1
-0
2
4
6
7
8
9
10
11
10
10
10
9

Dew Point (°C)

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

Relative Humidity (%)

51
57
62
66
70
71
71
72
71
73
72
72
70
64
57
52
45
41
39
36
34
36
40
49

Pressure (mb)

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

Ozone (du)

421
423
425
425
423
422
423
423
422
423
424
424
424
424
423
424
424
424
424
421
416
412
409
406

Wednesday 22

Waxing Crescent 46%

10:27

02:42

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

Sun - Rise: 05:52, Set: 20:07, Transit: 13:00. Moon - Rise: 10:27, Set: 02:42. Civil Dark: 20:42 - 05:16. Nautical Dark: 21:26 - 04:32. Astro Dark: 22:17 - 03:41

Total Clouds (% Sky Obscured)

80
33
27
47
53
63
47
65
96
100
97
57
51
54
58
54
46
42
39
40
38
35
22
32

Low Clouds (% Sky Obscured)

23
16
9
7
10
2
2
1
0
0
0
0
0
4
7
10
12
12
12
10
8
7
18
28

Medium Clouds (% Sky Obscured)

0
14
27
37
38
36
37
43
51
65
63
57
51
54
54
49
32
23
18
30
30
30
0
0

High Clouds (% Sky Obscured)

60
11
5
14
12
28
16
43
86
100
85
21
3
6
8
2
3
7
2
0
0
0
1
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 (%)

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

55
60
63
69
71
74
78
79
79
78
78
79
78
69
58
41
36
31
32
35
40
44
49
53

Pressure (mb)

1022
1022
1023
1023
1023
1023
1022
1022
1021
1021
1021
1020
1020
1020
1020
1019
1019
1018
1018
1018
1017
1017
1017
1017

Ozone (du)

405
403
403
399
394
392
389
386
386
383
381
379
376
376
376
375
374
375
375
374
373
373
375
377

Thursday 23

Waxing Crescent 46%

11:51

03:14

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

Sun - Rise: 05:50, Set: 20:08, Transit: 13:00. Moon - Rise: 11:51, Set: 03:14. Civil Dark: 20:44 - 05:14. Nautical Dark: 21:28 - 04:29. Astro Dark: 22:19 - 03:38

Total Clouds (% Sky Obscured)

42
53
61
69
68
77
93
94
89
84
85
85
84
76
79
75
79
83
87
80
72
70
74
79

Low Clouds (% Sky Obscured)

35
41
43
48
47
54
71
77
76
78
76
77
77
76
75
74
70
63
58
58
62
62
63
72

Medium Clouds (% Sky Obscured)

0
16
32
49
63
70
70
40
17
0
29
3
0
7
14
23
42
62
79
64
50
35
23
12

High Clouds (% Sky Obscured)

1
25
49
69
68
70
75
55
32
26
57
10
8
4
3
2
8
13
19
14
9
4
5
7

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
4
8
24
24
28
16
22
21
4
10
20
24
25
23
18
23
26
29
25
21
19
16
13

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

59
67
76
80
84
85
82
82
82
82
81
82
84
85
82
82
80
76
72
67
66
65
64
66

Pressure (mb)

1017
1017
1018
1018
1018
1018
1018
1018
1017
1017
1017
1017
1017
1017
1016
1016
1016
1015
1014
1014
1014
1013
1013
1013

Ozone (du)

379
377
375
374
375
377
382
383
380
379
379
379
382
383
385
387
389
392
394
396
399
401
404
405

Friday 24

First Quarter 57%

13:13

03:37

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: 05:48, Set: 20:10, Transit: 13:00. Moon - Rise: 13:13, Set: 03:37. Civil Dark: 20:46 - 05:12. Nautical Dark: 21:30 - 04:27. Astro Dark: 22:22 - 03:35

Total Clouds (% Sky Obscured)

83
84
85
90
83
77
70
70
69
69
65
58
57
59
58
65
77
88
94
95
97
98
95
91

Low Clouds (% Sky Obscured)

75
55
41
27
22
17
12
10
9
8
10
11
12
22
34
51
59
62
63
62
61
60
59
56

Medium Clouds (% Sky Obscured)

0
8
15
23
22
16
15
13
8
7
13
20
42
51
58
65
77
88
82
86
91
95
90
85

High Clouds (% Sky Obscured)

10
35
64
90
79
67
55
57
62
68
65
58
57
59
58
65
67
33
0
0
3
11
13
10

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 (%)

3
14
13
4
7
9
9
8
4
0
0
0
0
1
2
2
7
10
13
21
27
31
40
44

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)

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

Chance of Frost

Temperature (°C)

10
10
9
8
7
6
6
4
4
4
4
5
6
7
9
10
12
13
13
14
14
14
14
13

Feels Like (°C)

6
7
5
5
5
5
5
4
2
2
3
2
2
2
6
7
7
8
8
9
12
11
11
11

Dew Point (°C)

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

Relative Humidity (%)

68
71
73
74
78
82
85
89
89
91
91
86
82
78
68
59
52
47
43
40
39
38
38
43

Pressure (mb)

1013
1014
1014
1014
1014
1014
1014
1014
1014
1014
1013
1013
1013
1013
1013
1012
1012
1011
1011
1010
1009
1009
1008
1008

Ozone (du)

406
407
408
409
411
409
407
405
401
397
394
391
387
384
383
382
381
380
380
379
379
379
380
379

Saturday 25

Waxing Gibbous 68%

14:31

03:54

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

Sun - Rise: 05:46, Set: 20:12, Transit: 12:59. Moon - Rise: 14:31, Set: 03:54. Civil Dark: 20:47 - 05:10. Nautical Dark: 21:32 - 04:25. Astro Dark: 22:25 - 03:32

Total Clouds (% Sky Obscured)

85
82
82
84
88
93
98
98
98
98
85
73
59
63
70
76
84
91
100

Low Clouds (% Sky Obscured)

53
48
44
40
46
52
57
68
77
85
75
65
57
63
70
76
74
67
54

Medium Clouds (% Sky Obscured)

75
65
45
37
47
54
66
76
87
98
68
38
8
17
26
31
43
55
67

High Clouds (% Sky Obscured)

2
5
6
12
14
17
20
16
11
3
1
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

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

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
Very Light Rain
Very Light Rain
None
None

Precipitation Probability (%)

46
46
46
40
35
27
14
25
30
34
31
27
19
36
48
59
52
46
42

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

10
10
10
10
10
10
11
11
12
14
15
16
16
16
16
16
17
17
18

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

11
12
8
7
7
7
6
5
4
4
3
2
2
1
-1
-1
-1
-1
-1

Dew Point (°C)

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

Relative Humidity (%)

48
55
58
62
65
66
68
68
67
68
69
72
75
77
70
62
56
53
51

Pressure (mb)

1008
1007
1008
1008
1008
1008
1008
1009
1010
1011
1011
1013
1014
1015
1016
1016
1017
1018
1018

Ozone (du)

378
377
379
380
382
388
393
399
412
424
437
437
438
438
440
443
445
441
437

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

Generated: 19/04/26 19:32:41. Forecast: 19/04/26 to 25/04/26. Timezone: UTC+2.00