Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 28

Waning Gibbous 98%

19:02

09:10

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

Sun - Rise: 06:58, Set: 18:47, Transit: 12:52. Moon - Rise: 19:02, Set: 09:10. Civil Dark: 19:19 - 06:26. Nautical Dark: 19:56 - 05:48. Astro Dark: 20:35 - 05:09

Total Clouds (% Sky Obscured)

7
9
6
15
11
29
35
31
40
42
43
48
53
55
43
57
59
35
32
18
38
46
60
45

Low Clouds (% Sky Obscured)

0
0
6
15
11
29
33
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

0
9
6
0
2
7
20
31
40
42
29
27
28
24
20
5
3
3
3
3
0
0
0
0

High Clouds (% Sky Obscured)

2
2
2
0
0
0
0
0
0
2
23
30
48
47
31
52
55
33
28
16
35
46
56
40

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

Chance of Frost

Temperature (°C)

11
11
11
9
9
9
9
9
11
15
17
19
21
22
23
23
23
22
19
17
16
15
14
14

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

65
67
68
68
69
70
72
67
57
51
45
40
37
34
34
35
38
45
52
52
54
53
55
56

Pressure (mb)

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

Ozone (du)

283
282
281
280
279
279
280
280
280
280
279
278
278
277
277
276
276
277
277
276
276
277
278
278

Tuesday 29

Waning Gibbous 93%

19:24

10:35

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

Sun - Rise: 06:59, Set: 18:44, Transit: 12:52. Moon - Rise: 19:24, Set: 10:35. Civil Dark: 19:17 - 06:27. Nautical Dark: 19:54 - 05:50. Astro Dark: 20:33 - 05:11

Total Clouds (% Sky Obscured)

43
21
12
14
86
95
91
47
33
36
39
37
39
10
7
10
7
7
6
4
3
3
3
3

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)

38
21
11
12
81
93
88
44
33
36
39
36
39
7
4
6
4
5
4
3
3
3
2
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)

3
3
3
3
4
4
4
3
5
7
9
11
12
12
12
12
11
9
7
6
6
6
5
5

Chance of Frost

Temperature (°C)

13
12
11
11
11
10
10
11
14
16
19
21
22
23
24
23
23
21
18
17
15
15
13
12

Feels Like (°C)

11
10
11
10
10
9
8
9
11
12
15
17
18
19
20
20
20
19
17
15
14
14
13
12

Dew Point (°C)

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

Relative Humidity (%)

58
58
60
60
61
62
63
59
50
43
38
33
30
29
28
29
33
38
43
47
49
52
54
50

Pressure (mb)

1025
1025
1025
1025
1025
1026
1026
1026
1026
1026
1026
1025
1025
1025
1024
1024
1024
1025
1025
1026
1026
1026
1026
1026

Ozone (du)

278
278
278
278
278
279
280
281
281
281
281
281
281
281
281
281
281
282
282
282
282
282
282
282

Wednesday 30

Waning Gibbous 86%

19:55

12:01

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

Sun - Rise: 07:01, Set: 18:42, Transit: 12:52. Moon - Rise: 19:55, Set: 12:01. Civil Dark: 19:14 - 06:29. Nautical Dark: 19:52 - 05:51. Astro Dark: 20:31 - 05:13

Total Clouds (% Sky Obscured)

3
2
2
2
2
3
2
2
3
4
26
15
40
63
81
100
98
78
98
96
93
89
93
96

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)

3
2
2
2
2
2
2
2
2
4
25
14
40
63
81
100
98
75
98
96
93
89
93
96

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

Chance of Frost

Temperature (°C)

12
11
11
11
10
10
10
10
13
15
18
21
22
23
23
23
23
21
18
17
16
14
13
13

Feels Like (°C)

11
10
9
10
9
9
9
9
11
13
16
18
19
19
20
19
20
18
17
14
13
12
11
11

Dew Point (°C)

1
0
0
-0
0
0
1
1
2
2
3
4
4
4
4
4
5
6
6
5
4
3
3
2

Relative Humidity (%)

47
46
47
47
49
52
54
53
47
40
36
33
31
29
28
28
32
38
43
44
45
47
48
49

Pressure (mb)

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

Ozone (du)

282
281
281
281
282
282
282
283
283
283
283
283
283
283
282
282
281
282
282
282
281
281
282
282

Thursday 1

Waning Gibbous 77%

20:39

13:23

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
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad

Sun - Rise: 07:02, Set: 18:40, Transit: 12:51. Moon - Rise: 20:39, Set: 13:23. Civil Dark: 19:12 - 06:30. Nautical Dark: 19:50 - 05:53. Astro Dark: 20:28 - 05:14

Total Clouds (% Sky Obscured)

100
100
100
100
99
98
97
90
85
78
72
65
61
71
82
80
89
96
87
92
92
97
96
95

Low Clouds (% Sky Obscured)

0
0
0
0
6
12
18
13
7
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
1
3
2
2
2
37
12

High Clouds (% Sky Obscured)

100
100
100
100
98
96
94
89
85
78
72
65
60
67
79
80
87
95
83
89
89
97
96
95

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)

3
3
3
3
3
3
2
2
3
3
4
4
4
3
3
3
3
4
4
3
3
3
3
3

Chance of Frost

Temperature (°C)

12
12
11
10
10
10
9
9
12
14
17
18
20
22
22
22
23
21
19
17
16
15
15
14

Feels Like (°C)

10
10
9
9
8
7
7
8
10
12
15
16
19
21
22
21
23
20
17
16
15
14
13
12

Dew Point (°C)

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

Relative Humidity (%)

51
53
54
57
58
60
61
59
52
45
41
36
33
32
30
31
32
38
41
45
49
53
53
55

Pressure (mb)

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

Ozone (du)

281
280
280
280
279
279
279
279
280
281
281
281
281
280
279
278
278
277
278
278
278
278
278
277

Friday 2

Waning Gibbous 66%

21:39

14:33

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
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad

Sun - Rise: 07:04, Set: 18:38, Transit: 12:51. Moon - Rise: 21:39, Set: 14:33. Civil Dark: 19:10 - 06:32. Nautical Dark: 19:48 - 05:54. Astro Dark: 20:26 - 05:16

Total Clouds (% Sky Obscured)

94
93
90
88
92
96
100
100
100
100
100
100
99
99
100
100
100
99
99
89
79
73
78
79

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
2
3
2
1
0
12
22

Medium Clouds (% Sky Obscured)

38
19
26
19
13
25
35
49
53
52
40
25
13
17
23
29
29
23
20
18
15
12
9
5

High Clouds (% Sky Obscured)

93
93
90
88
92
96
99
99
99
98
96
96
95
96
98
100
99
98
98
85
73
60
58
52

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
1

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

Chance of Frost

Temperature (°C)

13
12
11
11
10
10
10
10
12
15
16
18
19
21
20
20
20
19
18
16
16
15
14
14

Feels Like (°C)

11
11
10
9
9
8
8
9
10
11
12
13
13
14
18
19
18
18
18
18
13
13
13
13

Dew Point (°C)

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

Relative Humidity (%)

56
57
58
58
58
58
59
56
48
42
36
32
28
26
27
28
29
33
38
43
44
46
48
49

Pressure (mb)

1028
1028
1028
1028
1029
1029
1029
1029
1030
1030
1030
1030
1030
1030
1030
1030
1029
1030
1030
1031
1031
1031
1031
1031

Ozone (du)

276
276
276
275
276
277
278
278
278
278
279
279
279
280
280
281
281
281
281
281
281
281
281
281

Saturday 3

Third Quarter 54%

22:54

15:27

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

Sun - Rise: 07:06, Set: 18:36, Transit: 12:51. Moon - Rise: 22:54, Set: 15:27. Civil Dark: 19:08 - 06:33. Nautical Dark: 19:45 - 05:56. Astro Dark: 20:24 - 05:18

Total Clouds (% Sky Obscured)

84
83
80
77
74
76
82
60
34
9
8
7
6
4
2
0
0
0
0
0
0
0
0
0

Low Clouds (% Sky Obscured)

32
33
42
45
54
67
76
54
27
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)

55
57
45
38
15
10
8
6
8
9
8
7
4
2
1
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
1
1
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)

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

Chance of Frost

Temperature (°C)

13
13
12
12
12
11
11
11
12
15
17
18
20
22
22
22
22
20
17
15
15
13
12
11

Feels Like (°C)

13
12
10
11
11
10
10
9
9
10
11
12
14
15
20
20
20
20
19
18
12
12
12
12

Dew Point (°C)

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

Relative Humidity (%)

51
53
55
57
57
58
58
59
50
43
36
33
29
26
27
29
30
34
38
42
43
43
43
44

Pressure (mb)

1031
1031
1031
1031
1031
1031
1031
1032
1031
1031
1031
1030
1030
1029
1029
1028
1028
1028
1028
1028
1028
1028
1028
1028

Ozone (du)

281
280
280
280
280
281
281
282
283
283
284
284
285
285
285
285
286
285
285
285
286
287
287
287

Sunday 4

Waning Crescent 42%

00:18

16:06

Sun - Rise: 07:07, Set: 18:34, Transit: 12:50. Moon - Rise: 00:18, Set: 16:06. Civil Dark: 19:06 - 06:35. Nautical Dark: 19:43 - 05:57. Astro Dark: 20:21 - 05:19

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: 28/09/26 01:01:27. Forecast: 28/09/26 to 04/10/26. Timezone: UTC+2.00