Clear Outside v1.0 - International Weather Forecasts For Astronomers

Saturday 27

Waning Gibbous 49%

23:25

13:10

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
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad

Sun - Rise: 05:26, Set: 20:51, Transit: 13:08. Moon - Rise: 23:25, Set: 13:10. Civil Dark: 21:31 - 04:47. Nautical Dark: 22:24 - 03:54. Astro Dark: 23:36 - 02:43

Total Clouds (% Sky Obscured)

76
80
86
80
66
86
85
85
99
68
99
100
100
93
97
89
100
100
100
100
100
98
97
85

Low Clouds (% Sky Obscured)

1
2
2
21
3
4
1
1
6
5
9
14
1
8
13
3
1
19
45
73
84
58
51
52

Medium Clouds (% Sky Obscured)

95
97
73
81
64
59
76
75
65
53
48
87
92
92
93
74
92
100
48
98
100
96
94
61

High Clouds (% Sky Obscured)

100
100
60
38
58
73
69
71
66
11
95
100
96
56
57
61
90
91
100
94
78
20
60
56

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
3
9
8
7
9
7
9
9
7
8
1
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
Light Rain
None
None
None
None
None
None
None
None
None
None
Very Light Rain
None
None
None
None
None
Light Rain
Moderate Rain
Light Rain
Moderate Rain
Light Rain
None

Precipitation Probability (%)

18
52
0
2
0
1
1
2
3
8
2
36
52
31
39
37
22
39
95
95
95
95
95
37

Precipitation Amount (mm)

0
0.5
0
0
0
0
0
0
0
0
0
0
0.2
0
0
0
0
0
0.7
2.7
2.3
3
1.1
0

Wind Speed/Direction (mph)

1
2
0
0
3
3
5
6
6
8
8
7
5
4
3
3
3
4
4
4
4
7
11
11

Chance of Frost

Temperature (°C)

21
23
24
25
26
28
29
30
31
31
30
28
26
24
23
22
21
20
20
20
20
20
20
20

Feels Like (°C)

22
23
24
25
26
28
29
30
31
30
30
29
28
26
25
23
23
21
22
21
20
20
19
20

Dew Point (°C)

15
15
15
16
17
18
18
19
19
19
19
19
20
20
19
19
19
19
18
18
18
18
19
19

Relative Humidity (%)

66
62
59
57
57
54
52
50
48
49
53
57
69
75
76
84
88
89
86
88
91
89
95
92

Pressure (mb)

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

Ozone (du)

322
323
326
326
325
326
325
326
326
325
324
324
322
320
322
321
321
321
321
320
321
320
319
321

Sunday 28

Third Quarter 38%

23:45

14:36

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

Sun - Rise: 05:27, Set: 20:50, Transit: 13:08. Moon - Rise: 23:45, Set: 14:36. Civil Dark: 21:29 - 04:48. Nautical Dark: 22:22 - 03:56. Astro Dark: 23:32 - 02:47

Total Clouds (% Sky Obscured)

96
89
58
15
77
34
16
29
23
11
16
44
50
46
0
0
0
0
6
4
0
2
2
1

Low Clouds (% Sky Obscured)

45
30
32
19
39
33
19
37
30
16
6
15
14
8
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

90
88
60
3
26
17
3
5
0
0
10
0
11
4
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

67
3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
5
3
0
2
3
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 (%)

20
3
2
4
8
3
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)

14
16
13
13
13
14
15
15
16
14
12
11
10
5
4
4
4
4
4
4
4
4
3
3

Chance of Frost

Temperature (°C)

21
21
21
22
23
24
25
25
25
24
24
23
22
20
18
17
16
15
15
14
14
13
13
14

Feels Like (°C)

20
19
19
20
23
21
22
22
22
21
22
23
19
18
17
17
17
16
15
15
14
14
14
15

Dew Point (°C)

19
16
17
18
15
12
10
9
9
9
10
11
12
11
11
11
11
10
10
10
10
10
10
10

Relative Humidity (%)

88
75
79
79
60
47
39
36
36
36
40
46
52
57
63
68
70
72
75
78
79
82
83
76

Pressure (mb)

1017
1019
1020
1021
1021
1021
1021
1021
1022
1022
1022
1022
1023
1024
1024
1025
1025
1025
1025
1025
1025
1025
1025
1025

Ozone (du)

322
325
327
327
328
332
339
346
351
351
353
354
357
358
360
360
361
357
354
357
355
354
354
354

Monday 29

Waning Crescent 36%

00:10

16:00

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

Sun - Rise: 05:29, Set: 20:48, Transit: 13:08. Moon - Rise: 00:10, Set: 16:00. Civil Dark: 21:27 - 04:50. Nautical Dark: 22:19 - 03:58. Astro Dark: 23:29 - 02:50

Total Clouds (% Sky Obscured)

3
6
5
6
11
3
0
4
3
0
4
25
33
3
14
16
25
9
2
4
2
0
0
0

Low Clouds (% Sky Obscured)

0
3
9
10
18
4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

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

High Clouds (% Sky Obscured)

3
3
0
0
0
0
0
3
3
0
3
20
40
2
12
17
33
16
2
6
2
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)

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

Chance of Frost

Temperature (°C)

16
18
20
21
22
23
24
25
25
25
24
23
21
19
18
17
16
15
15
14
13
12
13
14

Feels Like (°C)

17
18
20
21
22
23
23
23
23
23
23
23
21
20
19
16
16
15
16
15
14
14
15
16

Dew Point (°C)

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

Relative Humidity (%)

69
63
56
49
42
38
34
32
32
33
34
41
50
52
55
58
63
65
68
68
70
72
74
67

Pressure (mb)

1025
1025
1025
1024
1024
1023
1023
1022
1022
1022
1021
1021
1021
1022
1022
1022
1022
1022
1022
1022
1022
1021
1021
1021

Ozone (du)

354
353
353
351
347
340
335
332
330
328
326
326
325
324
323
323
323
323
322
322
322
323
324
328

Tuesday 30

Waning Crescent 27%

00:44

17:22

08 Good
09 Good
10 Good
11 Good
12 Good
13 Good
14 Good
15 Good
16 Good
17 Good
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

Sun - Rise: 05:30, Set: 20:47, Transit: 13:08. Moon - Rise: 00:44, Set: 17:22. Civil Dark: 21:26 - 04:52. Nautical Dark: 22:17 - 04:00. Astro Dark: 23:25 - 02:54

Total Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
1
27
5
1
0
3
2
2
2
2
2
3
1
0
0

Low Clouds (% Sky Obscured)

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

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
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
1
20
4
1
0
2
2
2
2
2
2
3
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
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)

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

Chance of Frost

Temperature (°C)

16
18
20
22
24
25
26
27
27
28
27
26
24
22
21
19
19
18
17
17
16
16
16
17

Feels Like (°C)

18
20
22
23
25
26
28
28
28
28
27
25
24
22
21
20
20
18
18
17
17
16
17
18

Dew Point (°C)

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

Relative Humidity (%)

61
54
49
42
38
33
30
29
28
28
30
38
43
41
43
44
45
46
49
52
54
57
61
59

Pressure (mb)

1021
1021
1021
1020
1020
1019
1018
1018
1017
1017
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016

Ozone (du)

332
334
332
330
330
332
333
334
332
325
323
321
319
318
316
314
315
315
313
313
315
315
314
313

Wednesday 31

Waning Crescent 18%

01:31

18:34

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

Sun - Rise: 05:32, Set: 20:45, Transit: 13:08. Moon - Rise: 01:31, Set: 18:34. Civil Dark: 21:24 - 04:53. Nautical Dark: 22:15 - 04:02. Astro Dark: 23:22 - 02:57

Total Clouds (% Sky Obscured)

1
1
1
2
2
2
2
1
2
3
6
8
28
42
57
45
32
20
31
43
50
59
59
64

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
13
27
40
28
15
2
4
6
10
18
34
45

High Clouds (% Sky Obscured)

2
1
1
2
2
2
4
2
2
3
9
11
12
15
27
21
18
13
26
38
45
50
55
56

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
1
1
0
1
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)

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

Chance of Frost

Temperature (°C)

18
21
23
25
27
29
31
31
31
32
31
30
27
26
25
23
22
21
20
20
19
19
20
20

Feels Like (°C)

19
21
24
26
28
30
33
33
33
33
32
30
28
27
26
26
25
24
23
20
20
20
20
20

Dew Point (°C)

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

Relative Humidity (%)

51
45
40
36
33
31
30
29
28
28
29
37
44
46
48
49
53
58
63
62
64
65
65
62

Pressure (mb)

1016
1016
1016
1015
1015
1014
1014
1013
1013
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1011
1011
1011

Ozone (du)

312
313
314
313
314
312
311
313
313
314
315
315
316
315
315
314
315
315
316
315
315
314
311
308

Thursday 1

Waning Crescent 10%

02:32

19:33

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
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad

Sun - Rise: 05:33, Set: 20:44, Transit: 13:08. Moon - Rise: 02:32, Set: 19:33. Civil Dark: 21:22 - 04:55. Nautical Dark: 22:13 - 04:05. Astro Dark: 23:19 - 03:00

Total Clouds (% Sky Obscured)

71
85
100
100
100
100
100
100
100
98
97
95
94
90
87
87
86
86
77
68
59
61
65
71

Low Clouds (% Sky Obscured)

7
15
25
34
45
52
46
41
34
36
38
38
35
32
31
30
30
30
35
38
40
37
35
30

Medium Clouds (% Sky Obscured)

48
61
69
70
71
70
61
52
44
49
53
55
45
38
33
37
41
49
46
43
48
49
46
43

High Clouds (% Sky Obscured)

68
85
100
100
100
100
100
100
99
91
80
74
79
82
82
76
71
67
60
52
39
39
30
25

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

11
16
19
34
42
49
52
57
64
67
74
76
95
95
95
89
78
64
62
56
40
53
58
63

Precipitation Amount (mm)

0
0
0
0
0.2
0.3
0.2
0.3
0.3
0.3
0.4
0.4
0.8
1
0.5
0.4
0.4
0.2
0
0
0
0
0.2
0.3

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

21
23
24
25
27
28
30
29
28
28
26
25
24
23
22
21
21
20
20
20
20
19
20
21

Feels Like (°C)

20
23
25
26
26
26
26
31
29
28
28
28
28
25
25
25
24
24
23
21
22
21
21
22

Dew Point (°C)

13
15
17
19
19
20
21
20
19
19
19
19
20
19
19
19
19
19
19
18
18
18
18
19

Relative Humidity (%)

60
62
64
66
64
61
60
59
58
58
63
69
77
79
83
88
88
89
91
91
91
91
89
88

Pressure (mb)

1011
1011
1010
1010
1010
1009
1009
1009
1008
1008
1008
1008
1008
1008
1008
1008
1008
1008
1008
1008
1008
1008
1008
1008

Ozone (du)

305
306
308
309
311
313
316
316
316
316
315
314
313
313
314
314
315
316
316
318
321
323
325
327

Friday 2

Waning Crescent 5%

03:43

20:16

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
22 Bad
23 Bad
00 Bad
01 Bad

Sun - Rise: 05:35, Set: 20:42, Transit: 13:08. Moon - Rise: 03:43, Set: 20:16. Civil Dark: 21:20 - 04:56. Nautical Dark: 22:11 - 04:07. Astro Dark: 23:15 - 03:03

Total Clouds (% Sky Obscured)

71
71
71
75
78
82
88
93
99
99
99
99
99
99
97
93
90
87

Low Clouds (% Sky Obscured)

35
38
42
50
56
62
52
40
28
19
11
2
9
18
26
23
17
13

Medium Clouds (% Sky Obscured)

34
27
18
31
41
49
60
71
83
70
57
43
42
43
43
37
31
28

High Clouds (% Sky Obscured)

18
16
14
13
12
12
41
66
90
92
92
94
91
87
78
68
60
52

ISS Passover

Visibility (miles)

9
8
7
6
6
7
8
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

Precipitation Type

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

Precipitation Probability (%)

65
67
69
73
77
82
74
66
58
56
58
62
68
71
71
60
49
42

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

21
22
23
25
25
26
26
26
26
27
26
25
24
22
21
20
19
18

Feels Like (°C)

21
23
22
22
24
25
26
26
25
25
25
25
25
21
21
21
20
20

Dew Point (°C)

19
18
18
18
18
19
19
19
18
18
18
18
18
18
17
17
16
16

Relative Humidity (%)

85
78
71
65
65
65
65
63
61
59
64
67
71
75
79
82
84
85

Pressure (mb)

1008
1008
1008
1008
1008
1008
1007
1007
1007
1007
1007
1007
1007
1008
1009
1009
1009
1010

Ozone (du)

329
329
329
329
329
329
330
335
340
345
348
352
356
353
351
348
346
344

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

Generated: 27/07/24 08:34:15. Forecast: 27/07/24 to 02/08/24. Timezone: UTC+2.00