Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 20

Waxing Gibbous 68%

17:09

00:16

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

Sun - Rise: 06:47, Set: 19:04, Transit: 12:55. Moon - Rise: 17:09, Set: 00:16. Civil Dark: 19:37 - 06:15. Nautical Dark: 20:15 - 05:37. Astro Dark: 20:55 - 04:57

Total Clouds (% Sky Obscured)

97
98
98
93
19
0
16
26
27
23
38
38
39
48
77
78
79
78
86
82
78
84
56
62

Low Clouds (% Sky Obscured)

75
61
66
60
19
0
16
26
27
23
38
38
39
48
77
50
48
49
53
47
37
38
34
27

Medium Clouds (% Sky Obscured)

97
97
77
33
2
0
0
0
0
0
0
0
0
11
0
37
34
35
39
33
31
36
51
50

High Clouds (% Sky Obscured)

45
33
0
0
0
0
0
0
0
2
0
0
4
0
0
0
0
0
1
2
43
67
0
0

ISS Passover

Visibility (miles)

5
4
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
None
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 (%)

95
95
92
49
12
1
0
0
0
0
0
0
1
0
14
23
31
38
33
22
31
35
29
24

Precipitation Amount (mm)

1.8
0.8
0
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

15
16
15
13
11
9
9
8
7
7
7
7
7
8
7
7
6
6
5
5
5
7
5
7

Relative Humidity (%)

81
88
88
78
75
75
79
79
77
78
80
82
82
81
73
64
59
54
50
48
45
53
49
56

Pressure (mb)

1020
1021
1022
1022
1024
1025
1025
1026
1026
1026
1026
1026
1027
1027
1027
1027
1027
1026
1026
1025
1025
1024
1024
1024

Ozone (du)

289
288
293
302
319
327
330
328
322
322
325
326
327
329
332
334
336
337
336
334
332
331
331
331

Monday 21

Waxing Gibbous 77%

17:30

01:28

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

Sun - Rise: 06:49, Set: 19:02, Transit: 12:54. Moon - Rise: 17:30, Set: 01:28. Civil Dark: 19:34 - 06:17. Nautical Dark: 20:13 - 05:38. Astro Dark: 20:52 - 04:59

Total Clouds (% Sky Obscured)

57
50
88
49
63
53
46
44
46
39
36
28
43
61
68
72
82
90
75
59
42
44
34
44

Low Clouds (% Sky Obscured)

54
50
74
49
63
53
46
44
46
39
36
28
42
47
53
62
76
75
66
59
26
9
3
9

Medium Clouds (% Sky Obscured)

36
26
27
29
33
35
0
0
0
0
0
0
0
0
0
0
0
32
51
44
28
23
12
1

High Clouds (% Sky Obscured)

2
0
0
0
0
0
0
0
2
1
0
2
0
1
2
1
0
0
0
0
0
2
1
14

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 (%)

33
29
27
26
32
10
5
2
18
4
1
0
1
0
1
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

61
65
68
62
71
75
76
80
83
84
85
87
87
80
67
64
62
56
52
45
42
42
45
48

Pressure (mb)

1025
1025
1025
1025
1026
1026
1026
1026
1026
1026
1026
1026
1027
1027
1027
1027
1027
1027
1027
1026
1026
1026
1026
1026

Ozone (du)

331
327
327
324
322
322
321
320
315
314
314
312
311
310
306
306
306
306
306
306
305
304
303
302

Tuesday 22

Waxing Gibbous 85%

17:48

02:42

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 Good
08 OK
09 OK
10 OK
11 OK
12 OK
13 OK
14 OK
15 OK
16 OK
17 Bad
18 Bad

Sun - Rise: 06:50, Set: 18:58, Transit: 12:54. Moon - Rise: 17:48, Set: 02:42. Civil Dark: 19:32 - 06:18. Nautical Dark: 20:10 - 05:40. Astro Dark: 20:50 - 05:01

Total Clouds (% Sky Obscured)

53
60
67
69
76
84
85
82
91
84
88
49
18
38
39
20
47
40
42
42
43
44
50
67

Low Clouds (% Sky Obscured)

15
25
40
54
64
62
69
74
82
57
65
49
18
5
13
0
30
40
42
42
43
44
40
34

Medium Clouds (% Sky Obscured)

5
8
13
14
19
29
32
26
29
31
32
23
5
30
31
18
35
19
20
22
23
24
17
9

High Clouds (% Sky Obscured)

2
2
2
0
0
0
0
0
0
0
0
0
0
0
0
0
2
4
10
8
6
4
16
41

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)

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

Chance of Frost

Temperature (°C)

14
14
13
13
12
12
11
11
11
11
10
9
8
9
11
14
15
16
17
18
18
18
18
17

Feels Like (°C)

12
11
11
10
10
10
9
9
8
8
7
7
8
9
11
13
15
15
16
16
16
16
17
15

Dew Point (°C)

5
4
4
4
4
4
3
3
3
3
3
3
3
4
4
5
5
5
4
3
3
3
3
4

Relative Humidity (%)

52
53
53
55
57
57
57
58
59
60
61
62
69
68
59
54
50
46
41
38
36
36
37
41

Pressure (mb)

1026
1027
1027
1027
1027
1027
1027
1027
1027
1026
1026
1026
1027
1027
1027
1027
1026
1026
1025
1025
1024
1024
1024
1023

Ozone (du)

301
301
301
300
299
298
299
299
298
298
298
297
296
297
298
298
298
298
297
298
299
299
299
298

Wednesday 23

Waxing Gibbous 91%

18:02

03:57

19 Bad
20 OK
21 Good
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
18 Bad

Sun - Rise: 06:52, Set: 18:55, Transit: 12:54. Moon - Rise: 18:02, Set: 03:57. Civil Dark: 19:30 - 06:20. Nautical Dark: 20:08 - 05:42. Astro Dark: 20:47 - 05:02

Total Clouds (% Sky Obscured)

62
21
13
38
48
64
73
82
92
100
96
93
88
90
70
56
51
44
47
78
77
72
68
64

Low Clouds (% Sky Obscured)

28
19
7
0
0
0
0
0
0
0
3
5
10
28
47
56
51
44
47
41
33
26
17
13

Medium Clouds (% Sky Obscured)

2
1
1
0
9
20
30
40
49
58
58
49
46
55
50
54
44
35
25
63
65
59
60
55

High Clouds (% Sky Obscured)

42
5
4
29
15
18
27
50
72
100
75
57
35
30
14
0
0
0
0
2
2
2
2
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
Very Light Rain
Very Light Rain
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
6
6
12
28
42
56
52
31
8
3
1
0
0
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

13
12
13
12
9
9
8
8
8
7
7
8
7
9
10
13
14
16
17
18
14
14
14
13

Dew Point (°C)

4
3
3
3
3
3
3
3
3
3
3
4
4
4
3
3
3
4
4
4
7
10
10
10

Relative Humidity (%)

45
47
51
54
56
58
59
61
61
62
64
66
67
63
55
49
44
40
38
37
47
64
65
69

Pressure (mb)

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

Ozone (du)

297
297
296
295
295
294
294
293
293
292
291
291
293
295
296
299
301
302
302
303
304
304
303
301

Thursday 24

Waxing Gibbous 96%

18:16

05:13

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

Sun - Rise: 06:53, Set: 18:53, Transit: 12:53. Moon - Rise: 18:16, Set: 05:13. Civil Dark: 19:28 - 06:21. Nautical Dark: 20:06 - 05:43. Astro Dark: 20:45 - 05:04

Total Clouds (% Sky Obscured)

61
61
61
62
71
84
96
74
98
100
100
99
95
78
64
49
36
30
25
25
24
24
38
51

Low Clouds (% Sky Obscured)

5
15
24
34
24
15
5
1
1
0
0
0
0
65
64
49
36
30
25
25
24
24
38
51

Medium Clouds (% Sky Obscured)

40
14
7
0
8
17
47
35
61
87
87
87
79
66
59
47
36
30
25
16
10
3
7
13

High Clouds (% Sky Obscured)

0
2
2
2
22
35
52
56
97
99
99
99
80
14
8
3
4
3
2
2
3
3
10
18

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
6
3
2
5
2
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

12
12
13
13
12
11
11
11
11
9
9
9
9
10
11
12
12
13
13
14
20
20
20
20

Dew Point (°C)

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

Relative Humidity (%)

69
68
68
68
69
70
72
73
81
83
83
84
84
83
75
67
61
55
49
44
44
43
43
46

Pressure (mb)

1021
1021
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1021
1021
1021
1021
1021
1020
1020
1019
1019
1019

Ozone (du)

298
295
293
289
289
288
288
290
294
299
304
305
304
305
304
303
302
302
301
301
300
299
298
297

Friday 25

Waxing Gibbous 99%

18:29

06:29

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 OK
12 OK
13 Good
14 OK
15 OK
16 OK
17 OK
18 OK

Sun - Rise: 06:55, Set: 18:51, Transit: 12:53. Moon - Rise: 18:29, Set: 06:29. Civil Dark: 19:25 - 06:23. Nautical Dark: 20:03 - 05:45. Astro Dark: 20:42 - 05:06

Total Clouds (% Sky Obscured)

66
74
83
89
89
88
88
87
85
79
83
84
83
70
63
55
42
29
17
20
24
30
36
45

Low Clouds (% Sky Obscured)

66
63
58
53
54
55
55
49
44
38
40
44
46
48
53
55
42
29
17
20
24
30
28
16

Medium Clouds (% Sky Obscured)

17
19
19
19
18
18
17
12
8
3
3
1
0
0
1
1
2
2
2
2
1
1
13
24

High Clouds (% Sky Obscured)

21
31
31
40
35
40
45
55
60
60
65
65
65
50
37
22
12
7
1
2
3
3
12
23

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
1
0
0
2
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)

1
1
2
2
2
2
2
1
2
2
2
2
3
3
2
2
2
2
2
3
3
3
3
3

Chance of Frost

Temperature (°C)

17
16
16
15
15
14
14
14
13
12
11
12
12
12
14
16
18
19
20
21
21
21
21
20

Feels Like (°C)

20
20
15
15
15
15
14
14
12
11
12
11
12
11
12
13
14
15
15
16
23
23
22
22

Dew Point (°C)

7
7
7
7
7
7
7
7
6
6
6
6
7
7
7
7
8
8
7
7
7
7
7
7

Relative Humidity (%)

50
54
55
56
59
60
61
62
64
66
70
70
70
69
62
56
50
46
42
39
39
39
39
43

Pressure (mb)

1020
1020
1020
1020
1020
1020
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1020
1020
1020
1020

Ozone (du)

296
294
293
291
289
288
287
287
285
284
283
283
282
282
282
281
281
280
280
280
280
279
279
278

Saturday 26

Full Moon 100%

18:44

07:48

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

Sun - Rise: 06:56, Set: 18:49, Transit: 12:53. Moon - Rise: 18:44, Set: 07:48. Civil Dark: 19:23 - 06:24. Nautical Dark: 20:01 - 05:46. Astro Dark: 20:40 - 05:08

Total Clouds (% Sky Obscured)

56
35
16
0
20
37
55
33
17
0
6
9
16
10
6
3
9
16
23

Low Clouds (% Sky Obscured)

4
2
1
0
0
0
0
0
0
0
6
9
16
10
6
0
0
0
0

Medium Clouds (% Sky Obscured)

36
24
12
0
0
0
0
0
0
0
0
1
1
2
2
2
2
2
1

High Clouds (% Sky Obscured)

35
25
13
0
20
37
55
33
17
0
1
2
3
2
1
0
7
13
20

ISS Passover

Visibility (miles)

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

Precipitation Type

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

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

3
4
3
3
3
3
3
3
3
3
3
3
3
3
3
3
4
4
5

Chance of Frost

Temperature (°C)

18
16
15
14
14
13
12
12
11
11
11
11
11
11
13
16
18
19
21

Feels Like (°C)

22
22
16
15
15
14
14
14
12
12
12
11
11
11
12
14
15
15
17

Dew Point (°C)

7
7
7
6
6
6
5
6
6
6
5
5
5
5
6
7
7
7
7

Relative Humidity (%)

48
54
55
58
61
63
64
66
67
68
69
68
67
66
59
54
48
44
40

Pressure (mb)

1020
1021
1021
1021
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1021
1021
1021

Ozone (du)

278
277
277
277
278
279
280
281
282
282
283
283
283
283
284
284
285
286
287

Forecast for Královské Vinohrady, Praha 2, Czech Republic (50.08,14.44)

Generated: 20/09/26 19:33:14. Forecast: 20/09/26 to 26/09/26. Timezone: UTC+2.00