Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 13

Waxing Crescent 33%

10:38

02:18

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

Sun - Rise: 05:15, Set: 20:39, Transit: 12:58. Moon - Rise: 10:38, Set: 02:18. Civil Dark: 21:19 - 04:35. Nautical Dark: 22:11 - 03:42. Astro Dark: 23:22 - 02:30

Total Clouds (% Sky Obscured)

21
23
26
21
19
8
0
0
0
0
0
5
7
0
2
3
1
0
0
0
0
5
14
16

Low Clouds (% Sky Obscured)

17
28
18
26
20
5
0
0
0
0
0
11
12
0
0
0
0
0
0
0
0
8
23
22

Medium Clouds (% Sky Obscured)

14
30
12
10
4
5
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
3
4
2
0
0
0
0
0
0
3

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)

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

Chance of Frost

Temperature (°C)

21
21
22
22
22
20
18
16
14
13
12
11
11
10
10
9
9
11
13
15
18
20
21
22

Feels Like (°C)

19
20
20
20
21
20
19
16
15
14
13
11
10
9
9
8
8
9
11
13
15
17
18
18

Dew Point (°C)

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

Relative Humidity (%)

51
50
47
48
55
63
72
75
79
84
87
90
91
91
93
90
87
78
70
61
54
48
43
41

Pressure (mb)

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

Ozone (du)

382
382
382
385
390
394
394
390
390
392
390
387
387
387
387
386
385
384
385
387
387
387
386
386

Tuesday 14

Waxing Crescent 43%

11:52

02:39

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

Sun - Rise: 05:13, Set: 20:41, Transit: 12:58. Moon - Rise: 11:52, Set: 02:39. Civil Dark: 21:20 - 04:34. Nautical Dark: 22:13 - 03:40. Astro Dark: 23:25 - 02:27

Total Clouds (% Sky Obscured)

16
20
18
10
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
4
13

Low Clouds (% Sky Obscured)

21
13
14
19
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
8
25

Medium Clouds (% Sky Obscured)

0
16
16
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1

High Clouds (% Sky Obscured)

4
4
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
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 (%)

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)

15
15
15
14
13
11
8
7
7
6
7
7
9
9
9
9
9
11
12
15
16
18
20
20

Chance of Frost

Temperature (°C)

22
22
22
22
21
20
18
16
14
13
12
11
11
11
10
10
10
11
13
16
18
20
21
22

Feels Like (°C)

19
19
19
19
19
18
17
15
14
12
11
10
9
8
8
8
8
9
11
12
14
15
17
17

Dew Point (°C)

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

Relative Humidity (%)

40
41
42
47
51
57
65
70
74
80
80
79
76
76
78
80
81
79
70
62
55
51
48
46

Pressure (mb)

1013
1012
1012
1012
1011
1011
1012
1012
1012
1013
1013
1013
1013
1013
1012
1012
1013
1013
1013
1012
1012
1012
1011
1011

Ozone (du)

385
384
384
384
384
384
385
386
385
384
382
381
384
386
387
388
388
388
389
390
391
391
391
391

Wednesday 15

First Quarter 52%

13:03

02:54

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

Sun - Rise: 05:12, Set: 20:42, Transit: 12:58. Moon - Rise: 13:03, Set: 02:54. Civil Dark: 21:22 - 04:32. Nautical Dark: 22:15 - 03:38. Astro Dark: 23:29 - 02:23

Total Clouds (% Sky Obscured)

16
3
3
1
0
6
46
56
54
41
40
0
0
12
28
59
71
86
99
100
100
100
100
100

Low Clouds (% Sky Obscured)

6
4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
6
24
34
49
47
42
43

Medium Clouds (% Sky Obscured)

13
0
2
0
0
0
0
0
0
0
0
0
0
6
21
31
36
43
57
73
85
85
80
80

High Clouds (% Sky Obscured)

0
0
0
0
0
4
39
52
46
35
40
0
0
4
6
46
74
78
89
100
100
100
100
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 (%)

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
Light Rain

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
5
7
6
30
47
66

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
0.5

Wind Speed/Direction (mph)

20
20
18
18
17
16
14
12
11
11
11
12
12
13
13
12
13
14
15
15
15
16
15
15

Chance of Frost

Temperature (°C)

22
23
23
22
21
21
19
17
16
15
14
14
13
13
13
12
12
13
14
15
16
16
16
15

Feels Like (°C)

18
18
19
19
18
18
16
14
14
13
11
11
10
9
9
9
9
9
9
10
10
11
11
10

Dew Point (°C)

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

Relative Humidity (%)

44
45
48
51
54
58
62
62
65
68
70
70
69
69
69
72
72
69
66
65
65
67
68
69

Pressure (mb)

1011
1011
1010
1010
1010
1010
1010
1011
1011
1011
1011
1011
1011
1011
1011
1011
1011
1011
1011
1011
1011
1011
1011
1011

Ozone (du)

391
391
391
390
390
390
391
391
391
391
391
391
391
390
392
392
392
392
391
391
391
389
389
388

Thursday 16

Waxing Gibbous 62%

No Rise

03:07

14 Bad
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

Sun - Rise: 05:11, Set: 20:44, Transit: 12:58. Moon - Rise: No Rise, Set: 03:07. Civil Dark: 21:24 - 04:31. Nautical Dark: 22:17 - 03:36. Astro Dark: 23:33 - 02:19

Total Clouds (% Sky Obscured)

100
99
99
99
99
100
98
95
93
95
98
100
100
100
100
96
87
98
99
99
100
100
100
100

Low Clouds (% Sky Obscured)

44
45
49
54
59
67
58
50
42
21
11
3
4
10
1
6
11
20
24
23
22
26
23
33

Medium Clouds (% Sky Obscured)

82
92
86
65
81
52
50
52
53
73
69
34
36
34
38
36
38
37
22
20
17
67
91
100

High Clouds (% Sky Obscured)

85
93
90
71
74
78
89
81
72
82
91
100
100
100
100
93
73
91
93
97
100
100
98
100

ISS Passover

Visibility (miles)

9
9
7
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

Light Rain
Light Rain
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 (%)

70
79
70
45
28
7
6
4
2
1
1
1
10
15
21
28
33
31
21
18
17
17
12
3

Precipitation Amount (mm)

0.5
0.6
0.4
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)

15
15
15
15
15
15
14
13
12
12
12
12
12
12
12
11
11
12
12
12
13
14
13
13

Chance of Frost

Temperature (°C)

14
14
14
15
15
15
15
15
14
14
14
13
13
13
13
13
13
13
14
15
16
18
18
18

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

76
84
89
86
80
79
78
75
71
66
69
69
60
60
56
61
69
65
64
63
61
61
65
65

Pressure (mb)

1012
1012
1012
1011
1011
1011
1011
1011
1011
1010
1010
1010
1010
1010
1010
1009
1009
1010
1010
1010
1010
1010
1010
1010

Ozone (du)

391
393
396
398
395
396
395
392
391
390
388
387
386
385
384
385
384
383
384
384
385
386
386
386

Friday 17

Waxing Gibbous 71%

14:12

03:18

14 Bad
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

Sun - Rise: 05:09, Set: 20:45, Transit: 12:58. Moon - Rise: 14:12, Set: 03:18. Civil Dark: 21:25 - 04:29. Nautical Dark: 22:19 - 03:34. Astro Dark: 23:37 - 02:15

Total Clouds (% Sky Obscured)

100
99
99
96
73
90
98
97
97
89
77
64
73
81
91
84
78
73
71
70
68
62
56
48

Low Clouds (% Sky Obscured)

29
29
38
24
30
36
42
47
53
48
47
48
52
56
60
62
64
66
49
32
15
15
15
15

Medium Clouds (% Sky Obscured)

98
97
95
89
47
40
48
49
81
41
35
30
36
38
45
44
52
51
44
41
31
36
36
26

High Clouds (% Sky Obscured)

96
74
74
65
59
70
72
53
47
53
43
26
18
10
2
1
1
0
0
0
0
0
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
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 (%)

10
15
8
8
12
16
25
12
9
9
9
3
17
16
11
12
15
18
17
14
5
22
26
24

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)

13
13
10
9
9
9
7
5
4
4
4
4
3
3
3
3
4
5
6
6
6
7
7
7

Chance of Frost

Temperature (°C)

18
18
17
18
17
16
15
13
13
12
11
10
10
10
10
11
11
12
12
14
15
17
18
19

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

65
63
64
63
62
67
76
83
83
84
88
91
93
91
90
88
86
84
81
76
72
67
63
58

Pressure (mb)

1010
1011
1011
1011
1011
1011
1012
1012
1013
1013
1013
1013
1013
1013
1013
1013
1014
1014
1014
1014
1014
1014
1014
1014

Ozone (du)

387
388
388
387
388
386
385
385
387
390
393
395
395
396
397
398
398
399
399
398
397
396
396
395

Saturday 18

Waxing Gibbous 80%

15:20

03:29

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

Sun - Rise: 05:08, Set: 20:46, Transit: 12:58. Moon - Rise: 15:20, Set: 03:29. Civil Dark: 21:27 - 04:28. Nautical Dark: 22:21 - 03:32. Astro Dark: 23:41 - 02:11

Total Clouds (% Sky Obscured)

46
41
39
33
28
22
26
30
35
44
50
52
41
29
21
18
14
20
22
24
21
39
56
74

Low Clouds (% Sky Obscured)

35
56
77
58
40
21
26
30
35
46
56
66
65
65
64
72
85
93
79
66
52
37
23
8

Medium Clouds (% Sky Obscured)

15
22
25
23
17
15
19
23
27
37
49
57
52
43
34
24
11
2
6
9
14
15
17
19

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
5
11
19
13
7
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

8
8
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 (%)

26
27
25
30
27
15
16
13
8
9
9
6
9
4
2
4
4
1
3
2
0
5
6
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
8
8
8
7
6
5
5
4
4
4
4
4
4
3
3
4
5
5
6
7
7
7
6

Chance of Frost

Temperature (°C)

20
20
19
19
18
17
16
15
14
13
12
12
11
11
11
10
12
13
14
16
17
19
19
20

Feels Like (°C)

14
20
19
18
19
19
19
15
16
16
15
15
15
11
11
11
11
10
10
16
16
15
17
18

Dew Point (°C)

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

Relative Humidity (%)

54
53
51
48
55
62
69
74
80
86
87
88
90
91
91
93
87
83
76
72
65
60
61
62

Pressure (mb)

1013
1013
1013
1013
1013
1013
1013
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1013
1013

Ozone (du)

395
394
393
392
389
387
385
386
386
387
388
389
390
392
393
395
392
389
386
384
382
380
380
379

Sunday 19

Waxing Gibbous 87%

16:28

03:41

14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 OK
20 OK
21 OK
22 OK
23 OK
00 OK
01 Good
02 OK
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad

Sun - Rise: 05:07, Set: 20:48, Transit: 12:58. Moon - Rise: 16:28, Set: 03:41. Civil Dark: 21:28 - 04:26. Nautical Dark: 22:24 - 03:30. Astro Dark: 23:45 - 02:07

Total Clouds (% Sky Obscured)

75
77
78
64
47
30
29
28
31
20
13
6
30
53
76
77
77
70

Low Clouds (% Sky Obscured)

6
7
5
8
10
10
8
5
0
0
0
0
11
23
33
31
29
24

Medium Clouds (% Sky Obscured)

18
17
15
9
4
0
8
20
33
22
11
0
6
12
19
13
8
4

High Clouds (% Sky Obscured)

0
0
0
0
0
0
1
1
1
2
4
6
31
58
83
76
74
72

ISS Passover

Visibility (miles)

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

Precipitation Type

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

Precipitation Probability (%)

8
8
2
4
4
4
5
3
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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

20
21
21
21
21
20
19
17
16
14
13
13
12
12
12
11
13
14

Feels Like (°C)

19
19
20
19
19
20
20
18
17
18
17
16
16
12
12
12
12
11

Dew Point (°C)

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

Relative Humidity (%)

63
63
62
60
65
69
73
78
83
89
89
90
92
93
93
95
92
87

Pressure (mb)

1012
1012
1012
1011
1011
1011
1011
1011
1011
1011
1011
1012
1012
1011
1011
1011
1011
1011

Ozone (du)

379
378
377
377
376
376
376
375
375
375
375
374
374
374
373
373
371
369

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

Generated: 13/05/24 14:17:44. Forecast: 13/05/24 to 19/05/24. Timezone: UTC+2.00