Clear Outside v1.0 - International Weather Forecasts For Astronomers

Wednesday 13

Waning Crescent 9%

03:35

17:43

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

Sun - Rise: 05:11, Set: 20:27, Transit: 12:49. Moon - Rise: 03:35, Set: 17:43. Civil Dark: 21:05 - 04:32. Nautical Dark: 21:55 - 03:42. Astro Dark: 23:00 - 02:36

Total Clouds (% Sky Obscured)

85
76
60
30
36
43
60
95
99
97
100
100
100
100
100
100
100
100
98
95
91
96
99
100

Low Clouds (% Sky Obscured)

26
1
2
2
2
2
2
11
8
49
30
72
78
75
68
35
44
55
58
55
52
46
33
76

Medium Clouds (% Sky Obscured)

39
45
41
25
30
24
60
71
93
92
100
100
100
100
100
100
100
100
95
87
84
90
97
100

High Clouds (% Sky Obscured)

0
0
0
2
1
27
47
57
73
7
2
2
35
4
40
40
45
55
50
50
55
61
55
66

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
6
9
3
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
None
Light Rain
Very Light Rain
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
1
11
9
13
30
38
42
60
57
70
60
49
41
39
35
56

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0
0.5
0.3
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

49
58
69
73
78
81
84
84
79
79
75
82
81
87
81
85
90
87
84
77
61
56
56
57

Pressure (mb)

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

Ozone (du)

378
381
383
384
383
383
384
385
385
384
386
390
392
395
394
393
392
392
391
391
389
389
389
390

Thursday 14

Waning Crescent 3%

03:54

No Set

18 Bad
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

Sun - Rise: 05:09, Set: 20:28, Transit: 12:49. Moon - Rise: 03:54, Set: No Set. Civil Dark: 21:07 - 04:31. Nautical Dark: 21:57 - 03:40. Astro Dark: 23:03 - 02:33

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
99
100
100
99
100
100
100
100
100
100
100
99
87
100
100
100
95

Low Clouds (% Sky Obscured)

73
75
100
91
84
84
91
94
100
93
99
84
95
90
96
100
94
87
97
87
55
50
17
26

Medium Clouds (% Sky Obscured)

100
100
100
100
100
92
96
86
95
100
96
71
100
100
100
100
100
100
82
60
70
100
73
60

High Clouds (% Sky Obscured)

92
100
100
100
100
100
100
90
100
100
87
100
100
100
100
100
100
100
45
5
100
100
100
82

ISS Passover

Visibility (miles)

9
3
2
5
5
9
9
8
8
5
4
3
2
9
5
4
7
9
9
8
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
6
5
3
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

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

Precipitation Probability (%)

95
95
95
95
95
61
40
32
27
49
44
38
43
67
80
95
95
69
42
36
28
21
10
18

Precipitation Amount (mm)

0.7
1.9
1.8
1
0.5
0
0
0
0
0
0
0
0
0.2
0.5
0.7
0.7
0.3
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

11
8
9
8
8
8
8
8
8
8
8
8
7
8
8
8
8
8
9
9
11
11
12
12

Dew Point (°C)

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

Relative Humidity (%)

60
84
98
96
96
98
98
98
98
98
98
100
98
98
96
93
95
95
90
83
77
68
63
61

Pressure (mb)

1001
1001
1001
1001
1001
1001
1001
1001
1001
1000
1000
1000
1000
1001
1001
1001
1001
1002
1002
1002
1002
1002
1001
1001

Ozone (du)

393
394
397
399
399
398
396
395
396
396
398
402
405
407
408
408
408
405
406
401
401
403
404
407

Friday 15

Waning Crescent 0%

04:18

19:12

18 Bad
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

Sun - Rise: 05:08, Set: 20:30, Transit: 12:49. Moon - Rise: 04:18, Set: 19:12. Civil Dark: 21:08 - 04:29. Nautical Dark: 21:59 - 03:38. Astro Dark: 23:06 - 02:30

Total Clouds (% Sky Obscured)

63
100
100
100
100
100
100
100
100
100
100
100
100
100
99
99
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

13
22
5
30
35
30
46
62
68
67
71
73
71
72
62
66
73
74
73
70
61
58
61
63

Medium Clouds (% Sky Obscured)

52
58
96
100
100
100
100
100
100
100
96
75
97
88
96
61
34
63
100
100
99
31
69
97

High Clouds (% Sky Obscured)

30
100
100
100
100
100
100
100
100
100
100
100
100
100
79
91
100
100
100
100
99
97
96
97

ISS Passover

Visibility (miles)

9
7
7
9
8
3
2
3
4
5
9
6
4
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
Very Light Rain
None
None
None
None
None
None
None
None
None
None
Very Light Rain
None
None
None
None
None
None
None

Precipitation Probability (%)

22
20
15
19
38
52
49
50
47
41
43
49
47
24
20
36
49
34
26
28
15
17
26
31

Precipitation Amount (mm)

0
0
0
0
0
0.2
0
0
0
0
0
0
0
0
0
0
0.2
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

4
3
1
2
2
3
4
4
4
3
4
4
5
4
5
7
7
7
8
9
8
9
8
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

69
84
87
91
91
98
98
98
98
96
96
96
96
96
91
85
83
77
71
70
74
65
61
61

Pressure (mb)

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

Ozone (du)

408
406
408
408
410
411
410
410
411
409
411
411
407
409
408
404
403
401
402
400
397
396
395
397

Saturday 16

New Moon 1%

04:52

20:43

18 Bad
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

Sun - Rise: 05:07, Set: 20:31, Transit: 12:49. Moon - Rise: 04:52, Set: 20:43. Civil Dark: 21:10 - 04:28. Nautical Dark: 22:01 - 03:36. Astro Dark: 23:09 - 02:27

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)

41
18
14
10
7
11
15
21
23
21
48
60
52
8
58
60
52
50
74
75
76
77
78
75

Medium Clouds (% Sky Obscured)

99
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

High Clouds (% Sky Obscured)

98
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

ISS Passover

Visibility (miles)

9
7
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 (%)

35
20
7
8
2
8
9
8
18
23
22
24
18
13
20
18
14
27
31
31
40
43
43
45

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

68
79
84
84
83
78
78
78
80
80
80
77
74
71
68
67
63
59
59
55
55
55
54
57

Pressure (mb)

1006
1007
1007
1008
1009
1009
1010
1010
1011
1011
1011
1012
1012
1013
1013
1014
1014
1014
1014
1014
1014
1014
1014
1014

Ozone (du)

397
396
395
397
397
398
397
397
396
397
397
397
398
397
395
395
394
392
391
392
392
390
388
387

Sunday 17

Waxing Crescent 5%

05:39

22:11

18 Bad
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

Sun - Rise: 05:05, Set: 20:32, Transit: 12:50. Moon - Rise: 05:39, Set: 22:11. Civil Dark: 21:11 - 04:26. Nautical Dark: 22:03 - 03:34. Astro Dark: 23:12 - 02:24

Total Clouds (% Sky Obscured)

100
100
100
100
100
99
98
98
98
97
97
97
97
98
96
95
95
95
94
94
93
92
91
91

Low Clouds (% Sky Obscured)

73
69
68
68
68
75
80
82
77
76
73
73
74
75
80
81
81
82
80
76
64
55
49
52

Medium Clouds (% Sky Obscured)

100
100
99
99
99
98
96
96
96
96
95
96
96
96
94
88
83
88
94
94
93
90
86
80

High Clouds (% Sky Obscured)

100
100
87
74
67
62
56
61
56
45
50
13
5
2
5
6
7
22
36
48
61
64
66
63

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
7
7
6
8
8
5
9
8
7
5
7
8
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
Very Light Rain
None
None
None
None
Light Rain
Very Light Rain
Light Rain
Light Rain
Very Light Rain
Light Rain
Very Light Rain
Very Light Rain
None
None
None
None
Very Light Rain
None
None
None
None

Precipitation Probability (%)

46
54
55
46
41
44
57
67
62
69
71
70
71
57
52
48
41
46
47
48
44
35
7
13

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

60
64
75
84
85
85
85
88
91
95
93
91
93
93
91
91
91
91
90
90
90
87
84
83

Pressure (mb)

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

Ozone (du)

387
385
381
378
377
378
378
376
374
376
379
380
380
379
378
377
376
375
373
371
369
368
367
366

Monday 18

Waxing Crescent 11%

06:44

23:25

18 Bad
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

Sun - Rise: 05:04, Set: 20:34, Transit: 12:50. Moon - Rise: 06:44, Set: 23:25. Civil Dark: 21:13 - 04:25. Nautical Dark: 22:05 - 03:32. Astro Dark: 23:16 - 02:20

Total Clouds (% Sky Obscured)

90
88
87
87
89
87
90
89
89
89
85
84
82
70
71
71
73
78
83
87
85
85
86
73

Low Clouds (% Sky Obscured)

51
55
55
65
65
72
78
79
79
74
69
71
72
70
50
31
13
10
7
3
20
35
52
40

Medium Clouds (% Sky Obscured)

72
66
71
81
87
83
71
55
54
53
52
55
62
65
61
63
65
72
77
78
74
67
63
59

High Clouds (% Sky Obscured)

59
50
25
15
15
10
5
5
0
5
5
5
6
6
9
7
5
5
7
7
5
2
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 (%)

11
1
2
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
0
4

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
6
4
4
3
3
3
3
3
3
4
4
4
4
4
6
8
10
10
10
10
10
10
11

Chance of Frost

Temperature (°C)

12
11
11
11
10
9
9
8
8
8
8
7
9
10
12
14
16
18
18
19
20
19
19
19

Feels Like (°C)

9
8
8
8
8
7
7
7
7
7
7
6
6
6
6
11
11
12
13
14
14
17
16
16

Dew Point (°C)

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

Relative Humidity (%)

81
81
81
83
81
82
82
81
79
82
84
87
78
72
65
56
48
42
42
42
42
44
47
50

Pressure (mb)

1016
1016
1016
1016
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1016
1016
1016
1016
1016

Ozone (du)

366
367
367
367
367
368
367
366
365
365
365
365
365
365
365
364
363
362
362
363
364
363
363
362

Tuesday 19

Waxing Crescent 20%

08:03

00:22

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

Sun - Rise: 05:03, Set: 20:35, Transit: 12:50. Moon - Rise: 08:03, Set: 00:22. Civil Dark: 21:14 - 04:24. Nautical Dark: 22:07 - 03:31. Astro Dark: 23:19 - 02:17

Total Clouds (% Sky Obscured)

60
47
40
32
26
21
19
16
23
29
34
45
49
68
74
75
72
79
86
94

Low Clouds (% Sky Obscured)

31
18
19
17
15
9
5
0
0
0
0
0
0
0
4
8
13
17
21
25

Medium Clouds (% Sky Obscured)

54
47
40
32
26
21
19
16
17
22
34
45
38
30
37
37
39
40
39
35

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
5
11
17
40
49
68
63
44
26
44
62
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

Fog (%)

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

Precipitation Probability (%)

4
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
9
10
6

Precipitation Amount (mm)

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
6
5
5
4
4
4
4
4
4
4
5
5
6
7
8
10
10
10

Chance of Frost

Temperature (°C)

17
16
15
14
12
10
10
9
9
9
8
8
10
12
14
15
17
19
19
19

Feels Like (°C)

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

Dew Point (°C)

8
9
8
9
8
8
7
7
7
7
7
7
7
7
8
7
8
7
8
8

Relative Humidity (%)

54
60
66
71
77
84
84
85
87
87
88
90
81
72
66
58
53
47
47
48

Pressure (mb)

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

Ozone (du)

363
363
364
363
363
362
362
361
361
361
361
361
363
365
368
367
366
365
364
363

Forecast for Brno, Město Brno, Czech Republic (49.20,16.61)

Generated: 13/05/26 18:31:53. Forecast: 13/05/26 to 19/05/26. Timezone: UTC+2.00