Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 30

Waning Gibbous 100%

21:20

06:02

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

Sun - Rise: 05:29, Set: 20:48, Transit: 13:08. Moon - Rise: 21:20, Set: 06:02. Civil Dark: 21:27 - 04:50. Nautical Dark: 22:18 - 03:58. Astro Dark: 23:27 - 02:50

Total Clouds (% Sky Obscured)

0
0
0
2
24
30
21
10
6
0
0
0
0
0
5
7
20
34
31
59
38
34
80
100

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
2
24
28
19
8
6
0
0
0
0
0
5
7
18
34
14
20
31
29
31
15

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
14
48
5
5
64
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
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
3
3
2
1
2
2
2
2
2
2
2
2
3
2
2
3
3
4
4
4
3
3
3

Chance of Frost

Temperature (°C)

23
21
20
19
18
18
18
19
22
25
28
31
33
35
36
37
37
37
37
36
33
31
28
26

Feels Like (°C)

25
23
21
20
20
20
21
22
24
27
30
33
35
37
38
39
38
38
37
36
34
31
28
25

Dew Point (°C)

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

Relative Humidity (%)

51
52
55
56
57
58
57
54
47
41
36
33
29
24
20
18
17
17
17
20
26
31
35
37

Pressure (mb)

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

Ozone (du)

316
316
319
321
321
322
322
322
322
323
321
319
318
316
314
312
310
309
309
309
309
310
311
310

Friday 31

Waning Gibbous 98%

21:35

07:16

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

Sun - Rise: 05:30, Set: 20:46, Transit: 13:08. Moon - Rise: 21:35, Set: 07:16. Civil Dark: 21:25 - 04:51. Nautical Dark: 22:16 - 04:00. Astro Dark: 23:23 - 02:53

Total Clouds (% Sky Obscured)

83
69
87
40
59
73
29
53
62
21
22
28
34
23
71
10
36
94
71
70
75
99
100
100

Low Clouds (% Sky Obscured)

0
0
0
0
0
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1

Medium Clouds (% Sky Obscured)

15
31
78
30
54
49
13
17
20
9
5
22
34
16
61
5
21
32
37
33
39
86
98
100

High Clouds (% Sky Obscured)

83
68
11
2
2
33
21
46
50
13
22
7
6
7
26
5
13
89
51
51
59
62
95
62

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 (%)

0
1
0
0
0
0
0
0
0
0
0
0
0
0
1
4
6
17
14
2
0
3
24
11

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
6
3
4
3
3
1
2
2
2
2
3
4
4
3
4
6
6
5
5
3
5
12

Chance of Frost

Temperature (°C)

25
24
24
24
23
22
21
22
24
27
30
32
33
34
35
36
37
37
36
35
32
30
28
26

Feels Like (°C)

23
24
24
25
24
23
21
24
24
27
31
33
35
33
36
36
38
39
35
35
32
31
27
23

Dew Point (°C)

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

Relative Humidity (%)

37
39
43
47
49
51
52
49
45
41
35
31
27
28
24
22
20
19
18
20
27
33
35
39

Pressure (mb)

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

Ozone (du)

311
310
309
310
310
311
312
311
310
308
307
306
306
305
304
304
305
305
306
306
306
304
303
303

Saturday 1

Waning Gibbous 94%

21:48

08:30

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

Sun - Rise: 05:32, Set: 20:45, Transit: 13:08. Moon - Rise: 21:48, Set: 08:30. Civil Dark: 21:23 - 04:53. Nautical Dark: 22:14 - 04:02. Astro Dark: 23:20 - 02:56

Total Clouds (% Sky Obscured)

100
100
100
100
45
41
39
40
45
29
34
79
58
80
100
96
59
100
100
32
28
28
27
37

Low Clouds (% Sky Obscured)

0
3
2
1
0
0
0
0
0
0
21
9
23
37
61
64
38
74
69
32
28
26
21
16

Medium Clouds (% Sky Obscured)

84
97
70
37
9
5
39
6
27
24
24
71
51
63
35
69
40
84
83
10
11
14
17
12

High Clouds (% Sky Obscured)

100
100
100
100
45
41
39
40
24
2
0
6
1
18
100
92
37
90
41
0
1
0
2
15

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
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
Light Rain
Ice pellet
None
None
None
None
None

Precipitation Probability (%)

11
25
5
1
0
0
0
0
0
0
1
9
10
13
19
40
64
95
84
13
17
13
4
19

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
0.9
0
0
0
0
0

Wind Speed/Direction (mph)

13
10
5
6
4
4
3
3
3
3
3
5
6
7
8
8
8
8
7
5
5
5
6
4

Chance of Frost

Temperature (°C)

25
23
23
22
22
21
20
21
23
25
27
29
31
32
32
32
31
28
24
24
24
23
22
21

Feels Like (°C)

22
22
23
21
21
21
20
22
24
28
30
32
31
31
31
31
28
27
23
25
27
26
23
23

Dew Point (°C)

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

Relative Humidity (%)

50
58
57
58
63
67
69
67
59
51
43
39
36
32
29
27
28
30
48
73
70
72
70
74

Pressure (mb)

1015
1015
1014
1014
1014
1014
1015
1015
1015
1015
1015
1015
1014
1014
1013
1013
1013
1013
1014
1015
1015
1016
1017
1018

Ozone (du)

301
302
303
305
306
307
309
313
314
313
311
311
312
311
311
309
309
310
308
311
310
310
311
312

Sunday 2

Waning Gibbous 88%

22:01

09:44

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

Sun - Rise: 05:33, Set: 20:43, Transit: 13:08. Moon - Rise: 22:01, Set: 09:44. Civil Dark: 21:21 - 04:55. Nautical Dark: 22:12 - 04:04. Astro Dark: 23:16 - 03:00

Total Clouds (% Sky Obscured)

55
67
83
66
53
39
34
46
51
41
41
46
48
51
52
48
45
39
33
27
22
19
17
20

Low Clouds (% Sky Obscured)

11
11
16
6
5
20
31
45
48
30
24
27
33
33
28
21
17
16
12
10
8
4
0
0

Medium Clouds (% Sky Obscured)

6
0
0
0
0
0
0
0
4
8
12
15
17
20
30
37
44
38
32
26
17
9
0
11

High Clouds (% Sky Obscured)

36
52
83
66
50
21
5
7
3
2
2
2
1
0
0
0
0
0
0
0
6
11
15
8

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 (%)

4
0
0
0
0
0
0
0
0
0
0
1
1
1
1
2
2
3
3
2
12
20
26
32

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

Chance of Frost

Temperature (°C)

21
20
19
19
18
18
18
19
20
22
24
25
27
28
30
31
31
31
31
30
28
26
25
24

Feels Like (°C)

23
23
21
19
18
18
19
21
22
23
25
27
29
30
32
32
33
32
31
29
27
26
24
24

Dew Point (°C)

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

Relative Humidity (%)

80
84
88
88
88
90
90
84
76
66
57
49
43
39
35
30
27
26
26
29
43
49
48
56

Pressure (mb)

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

Ozone (du)

312
310
311
311
311
310
308
307
306
305
305
304
304
302
301
301
299
298
298
298
298
297
296
297

Monday 3

Waning Gibbous 81%

22:14

11:00

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

Sun - Rise: 05:34, Set: 20:41, Transit: 13:08. Moon - Rise: 22:14, Set: 11:00. Civil Dark: 21:20 - 04:56. Nautical Dark: 22:10 - 04:06. Astro Dark: 23:13 - 03:03

Total Clouds (% Sky Obscured)

23
27
18
13
21
26
13
32
30
30
30
17
35
31
41
56
69
48
28
10
15
16
19
15

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
1
2
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

23
27
18
11
21
26
13
32
30
30
30
17
35
28
26
28
29
21
10
1
1
1
1
0

High Clouds (% Sky Obscured)

5
0
0
0
0
0
0
1
30
13
2
3
0
7
22
37
53
37
23
8
13
16
19
15

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
8
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 (%)

31
13
18
20
14
10
5
1
2
11
1
6
9
9
19
19
19
17
17
16
15
11
3
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)

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

Chance of Frost

Temperature (°C)

23
22
21
20
20
19
20
21
22
24
25
26
29
31
33
33
34
34
34
33
32
29
27
25

Feels Like (°C)

24
23
22
23
22
21
20
22
22
23
25
26
29
32
34
34
35
35
35
36
37
32
31
31

Dew Point (°C)

15
14
14
14
13
13
13
13
13
14
16
17
16
16
16
15
15
15
15
15
16
17
19
20

Relative Humidity (%)

61
62
63
65
65
66
66
60
55
55
54
55
43
38
34
33
32
31
33
34
37
46
58
73

Pressure (mb)

1015
1015
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1013
1012
1012
1011
1011
1010
1010
1010
1009
1010
1010
1010

Ozone (du)

297
297
296
295
294
294
293
294
296
296
295
296
298
298
299
300
300
301
301
302
302
303
304
305

Tuesday 4

Waning Gibbous 71%

22:30

12:18

00 Good
01 Good
02 Good
03 OK
04 OK
05 OK
06 Bad
07 Bad
08 OK
09 OK
10 Good
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

Sun - Rise: 05:36, Set: 20:40, Transit: 13:08. Moon - Rise: 22:30, Set: 12:18. Civil Dark: 21:18 - 04:58. Nautical Dark: 22:07 - 04:08. Astro Dark: 23:10 - 03:06

Total Clouds (% Sky Obscured)

8
0
11
25
38
47
54
60
45
26
9
29
50
70
62
55
46
64
82
100
82
63
40
50

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
1
2
3
2
1
0
20
44
66
63
60
40
46

Medium Clouds (% Sky Obscured)

0
0
1
1
2
2
1
1
3
4
5
10
14
18
17
16
14
21
31
50
55
54
40
50

High Clouds (% Sky Obscured)

8
0
11
25
38
47
54
60
37
18
3
15
30
44
45
43
30
52
76
100
72
40
15
10

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
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

2
0
0
0
0
0
0
0
0
0
0
5
10
9
41
51
47
95
95
95
95
95
95
86

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1.3
1.8
1.4
1.6
1.7
0.9
0.6

Wind Speed/Direction (mph)

3
2
2
2
1
2
2
3
4
3
3
3
4
6
8
9
9
10
7
6
8
6
4
4

Chance of Frost

Temperature (°C)

24
23
23
22
21
20
21
23
24
27
29
32
33
34
36
35
35
35
33
31
29
28
27
26

Feels Like (°C)

29
28
27
24
24
24
24
24
24
28
28
29
31
32
33
38
37
35
38
40
43
25
25
26

Dew Point (°C)

18
17
17
16
16
15
15
15
15
15
15
15
15
15
16
15
15
14
18
23
26
26
25
24

Relative Humidity (%)

71
69
67
69
71
74
68
62
57
49
41
35
33
31
30
29
29
29
42
61
86
87
90
91

Pressure (mb)

1010
1010
1010
1010
1010
1010
1010
1010
1010
1010
1009
1009
1009
1009
1008
1008
1008
1008
1009
1010
1010
1011
1011
1012

Ozone (du)

306
307
308
307
306
306
306
306
307
306
306
306
306
306
306
306
305
304
303
301
300
301
303
304

Wednesday 5

Waning Gibbous 61%

22:50

13:39

Sun - Rise: 05:37, Set: 20:38, Transit: 13:08. Moon - Rise: 22:50, Set: 13:39. Civil Dark: 21:16 - 05:00. Nautical Dark: 22:05 - 04:10. Astro Dark: 23:06 - 03:09

Total Clouds (% Sky Obscured)

Low Clouds (% Sky Obscured)

Medium Clouds (% Sky Obscured)

High Clouds (% Sky Obscured)

ISS Passover

Visibility (miles)

Fog (%)

Precipitation Type

Precipitation Probability (%)

Precipitation Amount (mm)

Wind Speed/Direction (mph)

Chance of Frost

Temperature (°C)

Feels Like (°C)

Dew Point (°C)

Relative Humidity (%)

Pressure (mb)

Ozone (du)

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

Generated: 30/07/26 00:25:42. Forecast: 30/07/26 to 05/08/26. Timezone: UTC+2.00