Clear Outside v1.0 - International Weather Forecasts For Astronomers

Wednesday 13

Waning Crescent 9%

04:11

No Set

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
15 Bad
16 Bad

Sun - Rise: 05:49, Set: 20:53, Transit: 13:22. Moon - Rise: 04:11, Set: No Set. Civil Dark: 21:29 - 05:13. Nautical Dark: 22:16 - 04:25. Astro Dark: 23:14 - 03:27

Total Clouds (% Sky Obscured)

77
82
86
89
100
100
100
100
100
97
100
98
100
96
98
100
98
100
100
88
94
95
99
94

Low Clouds (% Sky Obscured)

3
6
65
66
88
22
93
99
93
96
95
89
84
91
95
97
88
71
41
55
87
91
85
86

Medium Clouds (% Sky Obscured)

77
82
86
89
100
100
100
100
99
91
97
81
86
81
68
56
44
45
46
25
59
79
35
75

High Clouds (% Sky Obscured)

65
82
86
89
82
60
65
38
30
4
0
0
0
3
4
54
75
75
70
48
4
70
70
70

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

3
5
5
51
47
46
90
95
95
95
70
81
74
81
65
68
47
51
58
56
61
71
79
72

Precipitation Amount (mm)

0
0.2
0
0.2
0
0
0.7
1.3
0.7
1
0.3
0.6
0.4
0.6
0.4
0.4
0
0
0.2
0
0
0.3
0.4
0.3

Wind Speed/Direction (mph)

13
9
10
8
7
6
5
7
9
8
8
6
7
5
6
6
7
8
8
8
9
10
10
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

11
10
10
8
7
7
6
5
5
5
5
5
4
5
3
4
4
4
4
6
7
7
7
7

Dew Point (°C)

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

Relative Humidity (%)

47
66
77
84
87
85
91
96
96
96
96
96
96
96
94
96
94
91
84
64
54
61
60
76

Pressure (mb)

1005
1005
1005
1006
1006
1006
1007
1007
1007
1006
1006
1006
1005
1005
1005
1005
1005
1005
1004
1003
1002
1001
1001
1001

Ozone (du)

385
387
389
388
388
390
392
393
396
401
406
410
409
411
411
413
411
410
408
410
415
419
423
423

Thursday 14

Waning Crescent 3%

04:31

18:14

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
15 Bad
16 Bad

Sun - Rise: 05:48, Set: 20:55, Transit: 13:22. Moon - Rise: 04:31, Set: 18:14. Civil Dark: 21:31 - 05:11. Nautical Dark: 22:18 - 04:24. Astro Dark: 23:16 - 03:25

Total Clouds (% Sky Obscured)

91
91
100
100
99
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
95
100

Low Clouds (% Sky Obscured)

69
86
54
21
78
70
80
52
75
76
86
58
61
81
87
92
90
75
69
72
53
65
77
64

Medium Clouds (% Sky Obscured)

78
77
100
98
86
70
100
100
84
100
99
99
99
100
100
100
100
100
100
99
100
100
77
100

High Clouds (% Sky Obscured)

70
70
94
100
95
100
91
75
80
0
23
39
84
83
72
100
100
100
73
65
70
100
60
100

ISS Passover

Visibility (miles)

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

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

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

Precipitation Probability (%)

83
81
77
64
40
41
37
42
29
58
60
21
3
7
19
46
56
53
54
54
57
72
77
87

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

7
7
5
4
2
2
3
2
3
3
5
5
3
1
2
1
2
3
3
3
3
3
5
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

74
78
85
90
94
94
96
94
96
94
96
98
98
94
93
93
88
84
79
69
58
53
57
69

Pressure (mb)

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

Ozone (du)

424
424
424
423
419
419
418
420
424
430
427
425
423
423
423
424
424
425
428
430
430
430
431
431

Friday 15

Waning Crescent 0%

04:58

19:40

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
15 Bad
16 Bad

Sun - Rise: 05:47, Set: 20:56, Transit: 13:22. Moon - Rise: 04:58, Set: 19:40. Civil Dark: 21:32 - 05:10. Nautical Dark: 22:20 - 04:22. Astro Dark: 23:19 - 03:22

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
97
91
87
85
95
97
96
93
91
99
89
91
96
92
89
84

Low Clouds (% Sky Obscured)

85
82
78
84
88
92
79
84
79
76
85
83
78
77
93
87
84
76
82
83
91
89
79
82

Medium Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
87
77
70
65
81
84
66
66
71
85
77
76
72
66
60
48

High Clouds (% Sky Obscured)

100
95
100
100
100
73
75
53
55
50
4
2
35
40
35
30
30
30
35
3
2
0
0
0

ISS Passover

Visibility (miles)

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

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
3
9
18
18
9
9
9
9
9
9
9
9
9

Precipitation Type

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

Precipitation Probability (%)

80
78
84
77
66
67
66
47
44
29
42
34
27
34
32
52
70
76
72
73
76
71
73
84

Precipitation Amount (mm)

0.3
0.3
0.6
0.6
0.3
0.3
0.3
0
0
0
0
0
0
0
0
0
0.2
0.4
0.3
0.4
0.4
0.4
0.5
0.7

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

76
78
84
88
93
93
93
94
94
96
94
94
94
96
96
93
91
87
77
78
87
88
85
80

Pressure (mb)

1002
1003
1004
1005
1006
1007
1007
1007
1007
1008
1008
1008
1009
1009
1010
1010
1010
1011
1011
1011
1011
1011
1011
1011

Ozone (du)

431
430
427
425
423
424
426
427
427
429
430
429
429
430
428
427
426
426
427
428
427
427
425
425

Saturday 16

New Moon 1%

05:34

21:09

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

Sun - Rise: 05:45, Set: 20:57, Transit: 13:22. Moon - Rise: 05:34, Set: 21:09. Civil Dark: 21:34 - 05:09. Nautical Dark: 22:22 - 04:20. Astro Dark: 23:21 - 03:20

Total Clouds (% Sky Obscured)

85
85
85
78
73
20
16
12
8
19
28
39
39
42
45
53
52
53
53
53
56
93
100
100

Low Clouds (% Sky Obscured)

81
79
62
75
73
17
14
10
6
18
23
32
34
37
38
42
32
29
21
13
4
50
63
63

Medium Clouds (% Sky Obscured)

38
58
62
53
37
2
2
2
2
0
0
0
0
0
0
0
0
0
0
0
2
3
2
35

High Clouds (% Sky Obscured)

0
0
0
3
0
0
0
0
0
0
0
0
6
13
23
36
44
53
53
53
56
71
100
100

ISS Passover

Visibility (miles)

3
4
6
8
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Precipitation Type

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

Precipitation Probability (%)

82
76
58
33
22
17
5
3
1
3
3
0
0
0
0
0
1
5
7
6
6
3
4
4

Precipitation Amount (mm)

0.6
0.5
0.2
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)

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

Chance of Frost

Temperature (°C)

12
11
10
10
8
7
6
5
5
4
3
3
3
3
4
4
7
10
12
13
15
16
16
15

Feels Like (°C)

10
9
9
7
6
5
6
6
5
4
4
3
3
3
4
5
8
11
13
14
15
15
14
13

Dew Point (°C)

9
9
9
8
7
6
5
4
4
3
3
3
2
2
3
3
4
5
3
2
2
1
1
2

Relative Humidity (%)

81
87
88
88
91
93
93
94
94
96
98
96
96
96
96
91
82
72
54
46
41
38
37
41

Pressure (mb)

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

Ozone (du)

424
423
419
413
410
412
413
409
403
400
398
398
399
399
395
393
389
387
387
389
392
393
392
390

Sunday 17

Waxing Crescent 5%

06:23

22:34

17 Bad
18 Bad
19 OK
20 Good
21 Good
22 Good
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

Sun - Rise: 05:44, Set: 20:58, Transit: 13:22. Moon - Rise: 06:23, Set: 22:34. Civil Dark: 21:35 - 05:07. Nautical Dark: 22:23 - 04:19. Astro Dark: 23:24 - 03:17

Total Clouds (% Sky Obscured)

88
79
29
16
12
17
26
76
97
98
99
99
97
95
93
73
67
61
56
52
53
65
80
92

Low Clouds (% Sky Obscured)

5
4
3
3
4
5
4
3
3
7
5
7
8
9
10
27
37
48
36
24
14
29
47
64

Medium Clouds (% Sky Obscured)

3
2
0
0
0
4
2
43
51
76
89
99
97
95
85
60
59
58
56
52
53
65
80
88

High Clouds (% Sky Obscured)

85
70
25
15
8
2
21
42
97
91
84
77
68
12
45
8
6
4
8
13
18
24
31
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 (%)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

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
3
2
0
0
0
0
0
0
0
0
0
0
1
2
4
7
5
23
30
32
40
44
48

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)

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

Chance of Frost

Temperature (°C)

16
15
15
14
11
10
8
7
7
6
6
5
5
5
7
8
10
12
14
15
16
16
16
16

Feels Like (°C)

13
13
14
14
12
10
8
8
5
4
4
3
3
4
5
6
7
8
9
10
11
12
15
14

Dew Point (°C)

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

Relative Humidity (%)

43
41
53
63
70
77
87
88
87
85
83
86
88
90
81
71
65
58
52
53
54
54
57
59

Pressure (mb)

1014
1014
1014
1014
1015
1016
1016
1016
1016
1016
1016
1016
1016
1017
1017
1017
1019
1018
1018
1018
1017
1017
1017
1017

Ozone (du)

386
384
384
386
382
380
381
383
385
386
388
389
391
389
387
389
390
390
391
391
391
391
392
394

Monday 18

Waxing Crescent 11%

07:29

23:48

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
15 Bad
16 Bad

Sun - Rise: 05:43, Set: 20:59, Transit: 13:22. Moon - Rise: 07:29, Set: 23:48. Civil Dark: 21:36 - 05:06. Nautical Dark: 22:25 - 04:17. Astro Dark: 23:26 - 03:15

Total Clouds (% Sky Obscured)

88
82
77
81
84
86
71
57
43
53
62
69
70
73
75
77
79
81
77
74
73
82
93
100

Low Clouds (% Sky Obscured)

58
50
40
33
26
18
20
21
23
29
35
37
37
33
33
38
39
40
40
40
40
49
60
75

Medium Clouds (% Sky Obscured)

82
76
72
57
50
42
30
15
0
7
13
19
20
22
23
20
22
19
24
19
20
37
54
74

High Clouds (% Sky Obscured)

49
40
31
26
31
46
35
25
14
17
18
21
17
15
14
14
15
15
24
32
44
66
88
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 (%)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Precipitation Type

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

Precipitation Probability (%)

56
62
63
58
49
19
18
16
4
1
0
0
0
0
0
2
3
2
10
11
7
16
19
22

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

16
15
14
12
11
10
8
8
7
6
6
6
5
6
7
8
10
13
15
16
17
17
17
16

Feels Like (°C)

14
14
15
14
10
10
10
9
8
8
6
6
6
6
5
5
8
10
10
12
12
14
17
16

Dew Point (°C)

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

Relative Humidity (%)

63
71
80
90
91
91
95
94
94
94
96
96
96
94
94
93
80
69
58
55
51
47
55
64

Pressure (mb)

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

Ozone (du)

395
391
387
383
380
376
373
371
368
366
365
364
363
363
363
362
361
361
360
361
361
362
363
365

Tuesday 19

Waxing Crescent 10%

08:47

00:45

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

Sun - Rise: 05:42, Set: 21:01, Transit: 13:22. Moon - Rise: 08:47, Set: 00:45. Civil Dark: 21:38 - 05:05. Nautical Dark: 22:27 - 04:16. Astro Dark: 23:29 - 03:13

Total Clouds (% Sky Obscured)

100
100
99
100
100
100
98
97
94
93
93
93
93
92
90
91
92
93
92
91
90

Low Clouds (% Sky Obscured)

81
86
82
79
68
62
67
75
79
82
82
82
75
65
54
54
50
49
41
38
35

Medium Clouds (% Sky Obscured)

78
82
84
91
94
96
87
79
71
60
53
44
46
45
30
20
5
5
5
5
5

High Clouds (% Sky Obscured)

100
99
98
98
99
100
67
35
3
3
3
3
17
31
45
42
37
32
45
56
71

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
6

Fog (%)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Precipitation Type

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

Precipitation Probability (%)

27
30
29
36
42
49
43
36
24
21
16
4
8
10
1
14
15
8
30
35
30

Precipitation Amount (mm)

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
4
4
4
4
3
3
3
2
2
2
2
1
1
2
3
4
4
4

Chance of Frost

Temperature (°C)

15
14
13
12
12
11
11
11
10
10
10
10
9
10
11
11
13
14
16
17
18

Feels Like (°C)

15
14
14
14
9
10
10
10
9
9
9
9
9
9
9
9
12
13
14
14
14

Dew Point (°C)

11
11
10
11
10
10
11
10
10
10
10
9
9
9
10
10
11
11
11
11
11

Relative Humidity (%)

74
79
83
90
92
95
98
96
96
96
98
96
98
96
95
93
87
80
74
67
61

Pressure (mb)

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

Ozone (du)

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

Forecast for Rümlang, Dielsdorf, Switzerland (47.45,8.53)

Generated: 13/05/26 17:54:55. Forecast: 13/05/26 to 19/05/26. Timezone: UTC+2.00