Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 12

Waning Crescent 17%

03:28

16:30

22 Bad
23 Bad
00 Bad
01 OK
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

Sun - Rise: 05:17, Set: 20:39, Transit: 12:58. Moon - Rise: 03:28, Set: 16:30. Civil Dark: 21:18 - 04:38. Nautical Dark: 22:08 - 03:45. Astro Dark: 23:17 - 02:35

Total Clouds (% Sky Obscured)

93
77
69
37
36
25
47
80
70
79
74
84
89
99
100
92
99
94
95
100
100
100
100
100

Low Clouds (% Sky Obscured)

20
20
36
2
18
1
1
28
8
44
67
68
89
45
42
74
37
43
87
92
40
65
50
46

Medium Clouds (% Sky Obscured)

20
37
27
33
30
25
47
73
70
77
44
46
27
59
59
50
52
71
69
100
100
100
100
100

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
3
3
0
0
0
0
3
4
18
100
100
100
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
9
7
7
9
7
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 (%)

14
6
4
0
0
0
0
0
0
0
2
4
4
21
21
28
38
35
38
40
15
12
20
6

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
9
9
8
8
8
7
7
8
12
13
15
16
16
17
16
16
16
14
12
10
9
7

Chance of Frost

Temperature (°C)

6
6
6
5
5
4
4
4
4
5
7
8
10
11
12
13
13
14
14
14
13
13
12
10

Feels Like (°C)

2
2
1
2
2
2
1
1
1
2
2
3
4
6
6
7
8
9
9
10
9
10
8
7

Dew Point (°C)

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

Relative Humidity (%)

86
83
81
83
88
88
88
88
86
80
70
63
58
55
57
58
57
61
56
60
63
69
70
71

Pressure (mb)

1011
1010
1010
1010
1010
1009
1009
1009
1009
1008
1008
1008
1007
1007
1006
1006
1005
1004
1004
1004
1004
1004
1004
1004

Ozone (du)

401
397
395
394
389
385
387
386
381
379
381
386
393
399
399
397
396
397
399
399
398
400
400
402

Wednesday 13

Waning Crescent 9%

03:42

17:54

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
19 Bad
20 Bad
21 Bad

Sun - Rise: 05:15, Set: 20:40, Transit: 12:58. Moon - Rise: 03:42, Set: 17:54. Civil Dark: 21:20 - 04:36. Nautical Dark: 22:10 - 03:43. Astro Dark: 23:20 - 02:32

Total Clouds (% Sky Obscured)

98
99
99
100
100
100
100
98
100
92
79
85
87
95
100
98
97
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

31
36
46
33
39
50
50
60
84
55
26
67
65
46
71
36
18
21
1
17
28
20
17
31

Medium Clouds (% Sky Obscured)

96
96
96
100
100
100
65
79
81
47
52
21
66
71
76
47
95
92
100
100
100
100
100
99

High Clouds (% Sky Obscured)

74
74
43
86
72
42
65
53
67
4
43
17
65
24
65
88
70
97
100
98
19
47
93
38

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
8
9
9
9
9
8
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 (%)

1
3
14
6
7
14
29
22
39
33
28
28
32
28
23
8
2
2
1
1
1
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)

7
8
11
9
8
7
9
12
8
12
13
15
15
14
14
14
14
13
11
10
8
5
3
3

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

74
74
72
75
81
85
77
77
81
78
78
67
64
63
57
56
53
54
55
57
62
65
67
69

Pressure (mb)

1004
1003
1004
1003
1003
1002
1001
1001
1001
1002
1002
1002
1002
1002
1002
1002
1001
1001
1001
1001
1001
1000
1001
1001

Ozone (du)

404
405
409
412
413
412
412
411
409
408
408
407
407
409
410
408
404
407
409
414
414
413
410
408

Thursday 14

Waning Crescent 3%

04:00

19:24

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
19 Bad
20 Bad
21 Bad

Sun - Rise: 05:14, Set: 20:42, Transit: 12:58. Moon - Rise: 04:00, Set: 19:24. Civil Dark: 21:21 - 04:34. Nautical Dark: 22:12 - 03:41. Astro Dark: 23:24 - 02:28

Total Clouds (% Sky Obscured)

100
82
100
100
100
100
100
100
100
100
100
100
98
95
95
99
100
100
92
71
78
68
68
68

Low Clouds (% Sky Obscured)

35
35
35
50
60
68
68
61
63
63
38
28
56
28
34
47
76
64
47
13
43
46
58
59

Medium Clouds (% Sky Obscured)

100
73
78
100
95
99
100
100
99
97
99
100
91
85
89
64
67
82
87
71
72
58
56
58

High Clouds (% Sky Obscured)

29
43
41
92
100
100
100
100
100
100
100
100
75
76
82
87
100
34
66
71
70
65
55
50

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
6
6
4
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
None
None
None
None
None
None
None
None
None
None
None
None
Very Light Rain
Very Light Rain
None
None
Very Light Rain

Precipitation Probability (%)

0
0
0
0
1
5
11
15
35
37
25
17
16
27
21
31
43
49
59
61
58
46
36
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
0.2
0
0
0.2

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

4
4
3
3
3
2
3
3
3
4
4
4
5
5
5
4
5
6
7
8
9
10
9
8

Relative Humidity (%)

69
67
68
69
69
70
71
74
77
74
70
68
64
59
55
50
51
55
59
63
71
79
80
81

Pressure (mb)

1002
1002
1002
1002
1002
1002
1002
1001
1002
1002
1002
1002
1002
1002
1002
1002
1002
1001
1001
1002
1002
1002
1002
1003

Ozone (du)

404
401
401
403
405
407
408
408
409
411
410
410
412
414
413
413
413
415
415
414
414
416
416
414

Friday 15

Waning Crescent 0%

04:23

20:57

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
19 Bad
20 Bad
21 Bad

Sun - Rise: 05:13, Set: 20:43, Transit: 12:58. Moon - Rise: 04:23, Set: 20:57. Civil Dark: 21:23 - 04:33. Nautical Dark: 22:14 - 03:39. Astro Dark: 23:27 - 02:25

Total Clouds (% Sky Obscured)

75
83
92
100
100
100
100
100
100
100
100
100
100
95
95
99
99
100
100
100
100
100
97
79

Low Clouds (% Sky Obscured)

56
56
49
45
39
37
35
41
47
57
57
58
61
27
57
63
61
65
61
51
42
42
27
18

Medium Clouds (% Sky Obscured)

46
44
52
40
55
71
86
80
61
61
63
64
62
70
60
83
84
90
87
81
86
84
85
79

High Clouds (% Sky Obscured)

50
40
73
100
100
87
100
86
100
100
100
88
100
55
48
77
83
91
100
100
100
100
97
79

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

45
35
29
33
46
64
80
74
51
47
39
29
11
11
20
19
16
18
16
17
20
14
18
19

Precipitation Amount (mm)

0.3
0
0
0
0.3
0.5
0.6
0.4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

85
87
88
85
88
93
96
94
96
93
91
91
90
84
71
66
62
61
60
59
60
69
75
79

Pressure (mb)

1003
1004
1004
1004
1004
1005
1005
1005
1005
1006
1006
1006
1007
1007
1006
1006
1006
1006
1006
1006
1006
1007
1007
1008

Ozone (du)

414
414
415
418
419
420
421
422
422
420
418
416
413
414
414
411
412
411
408
406
405
404
403
401

Saturday 16

New Moon 1%

04:55

No Set

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
19 Bad
20 Bad
21 Bad

Sun - Rise: 05:11, Set: 20:44, Transit: 12:58. Moon - Rise: 04:55, Set: No Set. Civil Dark: 21:24 - 04:31. Nautical Dark: 22:16 - 03:37. Astro Dark: 23:31 - 02:21

Total Clouds (% Sky Obscured)

89
98
95
91
94
95
96
96
97
97
97
96
95
97
98
100
100
99
99
99
99
99
98
98

Low Clouds (% Sky Obscured)

8
11
14
17
21
22
25
24
21
18
20
24
32
48
59
53
46
36
24
23
25
27
37
46

Medium Clouds (% Sky Obscured)

89
95
90
86
82
89
86
77
57
51
90
90
90
93
73
93
93
91
90
93
95
97
96
96

High Clouds (% Sky Obscured)

89
74
48
21
25
23
19
36
53
69
53
37
26
47
66
86
87
88
87
79
71
63
49
35

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 (%)

12
19
19
17
17
16
12
14
14
13
11
8
5
22
14
7
21
20
19
18
15
10
21
25

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

83
85
88
91
91
90
90
90
90
84
78
73
68
63
56
51
45
47
49
50
53
57
59
61

Pressure (mb)

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

Ozone (du)

402
401
400
402
403
402
402
402
402
401
400
398
397
397
397
397
395
393
392
391
390
389
387
387

Sunday 17

Waxing Crescent 5%

05:42

22:25

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
19 Bad
20 Bad
21 Bad

Sun - Rise: 05:10, Set: 20:46, Transit: 12:58. Moon - Rise: 05:42, Set: 22:25. Civil Dark: 21:26 - 04:30. Nautical Dark: 22:18 - 03:35. Astro Dark: 23:35 - 02:17

Total Clouds (% Sky Obscured)

98
98
98
99
99
99
99
100
100
100
100
100
100
100
99
99
99
98
98
98
98
98
94
89

Low Clouds (% Sky Obscured)

55
64
73
83
76
66
62
67
69
75
81
84
87
79
68
59
53
46
39
33
27
19
10
4

Medium Clouds (% Sky Obscured)

95
95
95
95
92
89
86
90
95
99
99
99
100
98
96
94
96
97
98
94
89
83
75
65

High Clouds (% Sky Obscured)

15
15
19
31
44
58
70
55
42
28
46
64
82
57
32
10
24
41
60
42
26
15
14
17

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 (%)

27
23
19
14
14
13
12
12
10
5
39
31
11
22
35
19
19
28
33
20
13
14
13
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

63
65
69
73
77
79
81
82
78
74
71
66
61
57
54
51
48
47
46
45
51
58
65
71

Pressure (mb)

1017
1017
1017
1018
1018
1018
1018
1018
1019
1019
1019
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1021
1021
1021

Ozone (du)

386
385
386
386
386
385
384
383
382
381
380
379
379
378
377
376
375
374
373
371
371
371
371
371

Monday 18

Waxing Crescent 11%

06:47

23:41

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

Sun - Rise: 05:09, Set: 20:47, Transit: 12:58. Moon - Rise: 06:47, Set: 23:41. Civil Dark: 21:28 - 04:28. Nautical Dark: 22:21 - 03:33. Astro Dark: 23:39 - 02:13

Total Clouds (% Sky Obscured)

85
71
61
52
48
50
54
32
27
22
16
10
4
11
16
21
32
44
55
62
63
72

Low Clouds (% Sky Obscured)

1
1
0
1
1
2
3
3
4
4
4
4
3
5
6
8
15
18
17
26
40
49

Medium Clouds (% Sky Obscured)

55
47
43
35
36
38
51
32
27
22
16
10
0
10
16
21
23
18
15
17
18
20

High Clouds (% Sky Obscured)

19
22
19
5
4
2
0
0
0
0
0
0
0
0
0
0
0
0
0
1
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

Fog (%)

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

Precipitation Probability (%)

4
9
9
5
11
3
1
2
2
0
0
0
0
0
0
1
2
3
3
8
9
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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

10
9
8
8
7
7
7
6
8
9
11
12
14
16
17
18
19
19
19
19
18
17

Feels Like (°C)

9
10
9
9
8
7
7
7
7
7
6
12
13
13
14
14
15
19
18
18
18
18

Dew Point (°C)

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

Relative Humidity (%)

74
80
81
81
81
82
82
82
75
72
67
64
60
56
53
51
48
49
51
53
57
61

Pressure (mb)

1022
1022
1022
1023
1023
1023
1023
1023
1023
1024
1024
1024
1024
1023
1023
1023
1022
1022
1022
1022
1022
1023

Ozone (du)

370
370
372
374
376
379
382
385
384
383
381
379
377
375
375
376
376
374
372
371
368
366

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

Generated: 12/05/26 22:04:50. Forecast: 12/05/26 to 18/05/26. Timezone: UTC+2.00