Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 23

Waxing Gibbous 100%

20:41

06:21

15 Bad
16 Bad
17 Bad
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

Sun - Rise: 06:23, Set: 20:54, Transit: 13:39. Moon - Rise: 20:41, Set: 06:21. Civil Dark: 21:32 - 05:45. Nautical Dark: 22:20 - 04:57. Astro Dark: 23:17 - 03:59

Total Clouds (% Sky Obscured)

99
100
99
99
100
97
74
97
86
89
79
93
85
62
61
60
66
82
84
100
92
79
70
60

Low Clouds (% Sky Obscured)

55
69
94
91
98
96
80
91
72
86
78
73
63
67
66
62
69
78
81
81
71
70
60
53

Medium Clouds (% Sky Obscured)

85
35
37
44
48
23
0
32
21
22
4
24
21
0
3
10
6
32
79
69
38
26
5
25

High Clouds (% Sky Obscured)

59
35
51
17
10
4
4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

0
0
46
68
66
53
27
32
30
33
36
34
36
36
48
42
42
56
64
64
69
70
66
60

Precipitation Amount (mm)

0
0
0
0.5
0.4
0.2
0
0
0
0
0
0
0
0
0
0
0
0.2
0.3
0.3
0.3
0.3
0.3
0.2

Wind Speed/Direction (mph)

9
10
11
10
11
14
11
12
10
10
12
11
12
12
13
13
14
14
16
15
15
17
19
19

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

43
48
61
82
85
85
77
72
72
71
71
74
72
74
72
72
70
69
74
75
73
65
63
62

Pressure (mb)

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

Ozone (du)

406
406
404
404
404
407
405
405
408
413
418
422
423
423
425
433
438
438
437
434
433
431
429
427

Wednesday 24

Full Moon 99%

21:57

06:35

15 Bad
16 Bad
17 Bad
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

Sun - Rise: 06:21, Set: 20:56, Transit: 13:39. Moon - Rise: 21:57, Set: 06:35. Civil Dark: 21:34 - 05:43. Nautical Dark: 22:22 - 04:54. Astro Dark: 23:20 - 03:55

Total Clouds (% Sky Obscured)

57
45
72
52
42
65
66
74
79
97
100
99
99
100
99
100
100
100
100
100
100
100
100
99

Low Clouds (% Sky Obscured)

63
52
62
53
45
61
62
67
72
79
79
71
59
69
75
72
67
48
46
57
57
64
65
77

Medium Clouds (% Sky Obscured)

0
0
18
0
0
0
0
0
1
35
100
95
97
100
96
91
100
100
100
100
100
98
100
71

High Clouds (% Sky Obscured)

0
0
0
0
0
4
4
44
90
11
100
98
35
2
8
15
15
12
100
100
100
100
93
0

ISS Passover

Visibility (miles)

9
8
9
8
9
8
8
9
9
5
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
Very Light Rain
Very Light Rain

Precipitation Probability (%)

56
49
42
42
33
32
31
26
22
17
18
22
19
9
22
28
30
17
14
31
34
53
56
61

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
0.3

Wind Speed/Direction (mph)

19
18
17
16
14
13
11
9
8
7
7
7
6
6
6
5
5
6
8
10
9
10
13
14

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

60
60
63
65
68
71
75
76
76
74
71
72
74
72
71
70
68
70
66
54
53
55
56
59

Pressure (mb)

1010
1010
1009
1009
1009
1010
1010
1010
1010
1010
1009
1009
1008
1008
1007
1007
1007
1007
1007
1007
1006
1006
1005
1005

Ozone (du)

427
426
428
426
425
425
423
420
423
424
424
423
423
424
424
424
425
423
423
422
420
418
417
419

Thursday 25

Waning Gibbous 96%

23:16

06:55

15 Bad
16 Bad
17 Bad
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

Sun - Rise: 06:19, Set: 20:58, Transit: 13:39. Moon - Rise: 23:16, Set: 06:55. Civil Dark: 21:36 - 05:41. Nautical Dark: 22:24 - 04:52. Astro Dark: 23:23 - 03:52

Total Clouds (% Sky Obscured)

99
98
100
97
100
99
98
98
81
71
72
56
51
47
23
22
52
52
55
56
58
62
66
69

Low Clouds (% Sky Obscured)

72
62
44
71
76
83
71
77
69
73
68
39
33
40
23
26
24
36
48
61
60
62
61
51

Medium Clouds (% Sky Obscured)

54
59
83
96
100
98
89
96
65
50
50
45
45
50
43
38
59
44
35
19
11
13
15
30

High Clouds (% Sky Obscured)

0
0
57
80
50
75
55
28
28
14
4
11
31
8
8
4
4
60
34
3
35
75
80
80

ISS Passover

Visibility (miles)

9
9
7
9
9
9
9
9
9
9
9
9
8
8
8
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
Very Light Rain
Very Light Rain
None
None
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

59
63
62
49
44
54
48
19
22
27
35
39
39
40
30
25
14
4
4
13
9
10
6
12

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

5
5
5
5
5
5
4
5
4
4
4
3
4
4
4
4
4
5
5
7
7
9
9
9

Dew Point (°C)

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

Relative Humidity (%)

63
65
81
81
74
74
75
81
82
85
90
91
91
93
93
93
91
86
78
73
73
69
63
62

Pressure (mb)

1004
1004
1003
1003
1003
1003
1003
1003
1003
1003
1003
1003
1003
1003
1003
1003
1003
1004
1005
1005
1005
1006
1006
1006

Ozone (du)

419
419
418
417
416
415
414
414
418
419
420
418
418
417
418
424
425
425
424
425
427
427
426
424

Friday 26

Waning Gibbous 91%

00:35

07:25

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

Sun - Rise: 06:17, Set: 20:59, Transit: 13:39. Moon - Rise: 00:35, Set: 07:25. Civil Dark: 21:38 - 05:39. Nautical Dark: 22:27 - 04:49. Astro Dark: 23:27 - 03:48

Total Clouds (% Sky Obscured)

75
80
63
46
33
53
77
100
86
75
65
73
83
92
96
98
100
74
48
22
24
26
32
50

Low Clouds (% Sky Obscured)

38
28
22
12
9
10
10
10
17
25
37
22
19
19
12
7
1
2
2
30
26
22
36
30

Medium Clouds (% Sky Obscured)

52
72
62
51
44
63
81
100
86
71
60
58
60
25
74
86
100
81
60
44
29
38
19
8

High Clouds (% Sky Obscured)

80
75
80
75
70
70
70
70
75
80
80
89
40
81
98
73
29
24
40
26
50
70
75
82

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
8

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 (%)

22
19
13
21
21
9
22
18
2
3
2
0
0
0
0
0
0
0
0
0
0
14
21
29

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
4
2
1
3
4
5
4
5
5
5
5
6
6
6
6
7
8
9
10
10
11
12

Chance of Frost

Temperature (°C)

12
12
12
12
12
11
10
9
9
8
7
7
6
6
6
6
6
7
9
11
13
14
16
17

Feels Like (°C)

9
10
10
11
11
10
9
8
7
6
5
4
4
4
3
4
3
4
6
7
9
11
12
13

Dew Point (°C)

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

Relative Humidity (%)

63
67
72
76
77
81
83
87
90
90
93
91
93
93
91
91
91
88
85
81
76
70
66
59

Pressure (mb)

1006
1006
1006
1006
1006
1006
1006
1007
1007
1006
1006
1006
1006
1006
1006
1006
1006
1006
1006
1006
1006
1005
1005
1005

Ozone (du)

425
424
425
426
425
425
425
425
425
427
427
429
432
433
434
432
431
430
430
431
434
437
437
438

Saturday 27

Waning Gibbous 83%

01:48

08:08

15 Bad
16 Bad
17 Bad
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

Sun - Rise: 06:15, Set: 21:01, Transit: 13:39. Moon - Rise: 01:48, Set: 08:08. Civil Dark: 21:39 - 05:36. Nautical Dark: 22:29 - 04:46. Astro Dark: 23:30 - 03:44

Total Clouds (% Sky Obscured)

71
93
93
94
94
81
70
61
72
86
100
100
100
100
100
100
99
82
65
46
48
51
53
48

Low Clouds (% Sky Obscured)

25
27
19
10
10
5
5
10
4
1
0
11
23
34
26
17
9
20
31
39
41
44
46
42

Medium Clouds (% Sky Obscured)

17
22
50
48
42
26
23
31
67
83
100
100
99
99
84
72
59
48
32
18
13
8
3
8

High Clouds (% Sky Obscured)

88
94
94
92
66
19
24
87
85
97
100
100
100
100
96
93
89
59
30
0
1
2
3
6

ISS Passover

Visibility (miles)

8
9
8
8
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 (%)

30
33
28
21
8
6
7
6
17
15
15
25
25
25
24
21
17
18
18
17
14
10
2
3

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)

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

Chance of Frost

Temperature (°C)

17
18
18
17
17
17
16
15
14
13
13
12
12
12
12
12
11
11
12
13
14
15
16
17

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

57
60
67
66
63
67
64
63
69
79
80
80
81
84
87
84
84
83
75
69
62
56
50
44

Pressure (mb)

1004
1004
1004
1004
1004
1004
1004
1004
1004
1005
1005
1005
1006
1006
1007
1008
1009
1009
1010
1011
1012
1012
1012
1013

Ozone (du)

436
436
436
438
436
437
434
431
431
432
433
434
433
432
431
432
433
433
432
430
428
427
427
426

Sunday 28

Waning Gibbous 74%

02:47

09:09

15 Bad
16 OK
17 Bad
18 OK
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

Sun - Rise: 06:13, Set: 21:03, Transit: 13:39. Moon - Rise: 02:47, Set: 09:09. Civil Dark: 21:41 - 05:34. Nautical Dark: 22:31 - 04:44. Astro Dark: 23:33 - 03:41

Total Clouds (% Sky Obscured)

45
41
43
44
49
62
78
94
96
98
100
100
100
100
95
96
96
95
95
94
96
97
99
99

Low Clouds (% Sky Obscured)

38
36
25
12
0
0
0
0
0
0
0
1
2
2
3
4
5
13
22
34
45
59
72
71

Medium Clouds (% Sky Obscured)

13
16
16
15
15
34
53
72
81
90
100
100
100
100
95
89
84
71
65
55
62
73
80
85

High Clouds (% Sky Obscured)

9
12
13
15
17
39
61
81
87
94
100
100
100
100
80
57
40
57
70
74
66
53
41
32

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
8
7
5
7
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 (%)

2
0
3
4
2
6
6
2
7
9
9
24
32
40
41
41
36
34
31
21
28
30
30
38

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)

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

Chance of Frost

Temperature (°C)

18
18
19
18
18
17
15
14
13
12
12
12
12
11
11
11
11
11
12
14
15
16
17
17

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

44
43
42
48
55
63
66
70
72
76
80
83
86
87
90
91
91
95
90
87
83
79
75
71

Pressure (mb)

1013
1013
1013
1013
1013
1014
1014
1014
1015
1015
1015
1015
1015
1015
1015
1016
1016
1016
1016
1016
1016
1016
1016
1016

Ozone (du)

424
422
421
416
412
408
407
406
405
405
406
407
406
405
404
406
407
409
410
411
413
417
421
425

Monday 29

Waning Gibbous 64%

03:30

10:26

15 Bad
16 Bad
17 Bad
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

Sun - Rise: 06:11, Set: 21:05, Transit: 13:39. Moon - Rise: 03:30, Set: 10:26. Civil Dark: 21:43 - 05:32. Nautical Dark: 22:34 - 04:41. Astro Dark: 23:37 - 03:37

Total Clouds (% Sky Obscured)

100
100
100
100
100
97
96
94
90
86
82
74
69
66
71
76
76

Low Clouds (% Sky Obscured)

71
73
76
70
65
47
38
30
20
10
0
0
1
0
0
0
0

Medium Clouds (% Sky Obscured)

92
100
100
99
99
89
79
69
60
56
48
42
39
38
53
69
84

High Clouds (% Sky Obscured)

18
10
23
41
57
64
70
78
74
67
57
46
42
40
36
36
36

ISS Passover

Visibility (miles)

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

Precipitation Type

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

Precipitation Probability (%)

43
48
46
37
22
21
18
18
18
18
17
14
10
4
4
2
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

74
79
85
83
83
82
84
86
87
90
90
91
93
95
95
93
91

Pressure (mb)

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

Ozone (du)

427
429
431
429
428
426
425
424
423
423
423
423
418
414
409
408
406

Forecast for Leiden, Gemeente Leiden, Netherlands (52.16,4.50)

Generated: 23/04/24 14:52:08. Forecast: 23/04/24 to 29/04/24. Timezone: UTC+2.00