Clear Outside v1.0 - International Weather Forecasts For Astronomers

Saturday 30

Waxing Crescent 42%

15:30

22:12

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

Sun - Rise: 06:21, Set: 19:51, Transit: 13:05. Moon - Rise: 15:30, Set: 22:12. Civil Dark: 20:24 - 05:48. Nautical Dark: 21:05 - 05:08. Astro Dark: 21:49 - 04:25

Total Clouds (% Sky Obscured)

94
92
86
53
41
44
42
42
36
30
24
16
0
0
16
22
32
41
34
36
34
20
43
46

Low Clouds (% Sky Obscured)

55
59
63
53
41
44
42
42
36
30
24
16
0
0
16
22
32
41
34
36
34
20
25
7

Medium Clouds (% Sky Obscured)

13
18
15
4
3
3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

83
55
41
18
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

4
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 (%)

5
1
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)

6
4
4
3
3
3
3
2
2
2
2
2
1
2
3
3
3
4
4
3
2
2
2
2

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

12
11
9
9
9
8
8
8
8
8
7
7
7
8
8
8
6
5
5
5
5
6
6
9

Relative Humidity (%)

87
93
93
95
95
93
93
93
95
95
95
95
93
87
76
64
54
48
45
42
42
44
47
57

Pressure (mb)

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

Ozone (du)

313
312
313
314
317
318
318
319
313
307
302
299
296
295
294
294
294
294
293
291
290
289
289
290

Sunday 31

First Quarter 54%

16:32

22:47

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

Sun - Rise: 06:23, Set: 19:49, Transit: 13:05. Moon - Rise: 16:32, Set: 22:47. Civil Dark: 20:22 - 05:50. Nautical Dark: 21:02 - 05:10. Astro Dark: 21:46 - 04:27

Total Clouds (% Sky Obscured)

1
4
4
45
6
98
77
13
4
3
0
0
2
24
22
22
29
32
45
55
72
73
87
84

Low Clouds (% Sky Obscured)

1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
16
34
44
54
48
70
55

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
2
0
0
0
0
0
0
18
15
18
24
10
25
35
52
55
57
51

High Clouds (% Sky Obscured)

0
3
3
44
5
98
77
13
3
3
0
0
2
2
4
5
3
12
8
15
12
2
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 (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
11
13

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

9
8
9
8
7
6
5
5
6
6
7
7
8
9
8
7
8
9
8
8
9
9
10
12

Relative Humidity (%)

67
79
83
81
77
71
69
69
73
74
80
81
81
72
59
52
51
53
49
48
48
50
56
70

Pressure (mb)

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

Ozone (du)

290
289
289
288
289
288
287
288
288
288
288
287
287
287
287
287
287
288
288
288
287
288
288
288

Monday 1

Waxing Gibbous 64%

17:23

23:33

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
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad

Sun - Rise: 06:24, Set: 19:47, Transit: 13:05. Moon - Rise: 17:23, Set: 23:33. Civil Dark: 20:20 - 05:51. Nautical Dark: 21:00 - 05:12. Astro Dark: 21:43 - 04:29

Total Clouds (% Sky Obscured)

84
89
84
82
98
97
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
98

Low Clouds (% Sky Obscured)

48
52
41
36
51
57
68
44
40
47
56
84
82
93
82
93
99
89
86
84
87
90
87
86

Medium Clouds (% Sky Obscured)

51
53
51
55
54
63
58
91
75
91
83
100
100
100
100
100
84
86
69
39
40
84
47
52

High Clouds (% Sky Obscured)

6
11
22
4
5
66
58
44
97
100
100
92
100
95
100
100
100
93
100
87
75
67
68
30

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
1
0
0
0
5
9
8
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
None
None
None
None
None
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
5
10
9
3
13
18
15
16
55
93
95
95
95
66
41
34
26
15
24
34
25
21
28

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0.2
0.6
1.3
1.9
0.7
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

16
14
14
13
13
13
13
13
13
12
12
12
12
12
12
12
12
13
13
14
14
14
13
13

Feels Like (°C)

17
15
15
14
14
14
14
14
13
12
12
12
11
11
10
11
11
11
12
13
12
13
12
13

Dew Point (°C)

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

Relative Humidity (%)

81
89
90
90
92
87
87
90
93
95
96
100
100
100
98
95
92
90
87
82
74
79
84
86

Pressure (mb)

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

Ozone (du)

290
290
291
291
290
291
291
291
292
292
293
294
295
294
296
297
300
303
303
303
304
304
303
302

Tuesday 2

Waxing Gibbous 74%

18:03

00:34

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
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad

Sun - Rise: 06:26, Set: 19:45, Transit: 13:04. Moon - Rise: 18:03, Set: 00:34. Civil Dark: 20:18 - 05:53. Nautical Dark: 20:58 - 05:13. Astro Dark: 21:41 - 04:31

Total Clouds (% Sky Obscured)

99
100
100
100
100
100
100
99
99
98
73
95
93
86
78
71
79
84
74
88
91
82
79
74

Low Clouds (% Sky Obscured)

85
85
85
85
87
89
83
74
63
52
56
59
62
60
54
51
65
75
74
73
63
52
56
60

Medium Clouds (% Sky Obscured)

39
53
99
95
48
48
65
52
33
41
32
29
41
31
18
2
14
26
38
52
66
70
65
65

High Clouds (% Sky Obscured)

79
78
94
89
89
77
65
50
43
35
15
34
36
39
42
40
45
39
13
20
40
60
47
29

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
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
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

24
54
76
95
95
95
95
80
57
24
15
7
1
0
0
2
14
4
15
21
19
21
9
19

Precipitation Amount (mm)

0
0
0.5
1.2
1.3
1
1.4
0.6
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

89
93
91
93
95
98
96
95
93
93
95
95
96
93
86
74
64
59
55
53
56
58
57
65

Pressure (mb)

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

Ozone (du)

302
302
302
301
299
299
298
297
297
297
297
297
298
298
298
297
296
296
296
296
298
300
299
296

Wednesday 3

Waxing Gibbous 83%

18:34

01:45

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

Sun - Rise: 06:27, Set: 19:43, Transit: 13:04. Moon - Rise: 18:34, Set: 01:45. Civil Dark: 20:16 - 05:55. Nautical Dark: 20:55 - 05:15. Astro Dark: 21:38 - 04:33

Total Clouds (% Sky Obscured)

73
75
96
100
95
46
89
16
19
27
51
63
43
47
42
39
32
23
14
10
8
4
3
1

Low Clouds (% Sky Obscured)

61
67
72
78
83
46
89
16
19
27
51
63
43
34
37
27
23
21
14
10
8
0
0
0

Medium Clouds (% Sky Obscured)

65
75
85
80
72
46
39
16
19
19
19
18
21
4
3
2
2
1
0
0
0
0
0
0

High Clouds (% Sky Obscured)

11
9
28
30
33
12
32
3
1
2
18
22
8
9
8
9
3
2
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 (%)

16
18
18
16
26
25
19
15
11
2
6
5
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

8
9
9
8
8
8
8
8
9
9
9
9
9
9
8
7
6
6
5
5
7
7
8
9

Relative Humidity (%)

79
88
90
90
88
90
91
91
93
93
93
93
91
83
71
60
52
48
45
43
44
46
48
57

Pressure (mb)

1016
1016
1017
1017
1017
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1017
1017
1017
1017
1016
1016
1016
1016
1016

Ozone (du)

295
295
294
292
292
292
291
292
292
291
290
289
288
287
286
285
284
283
281
280
280
280
280
279

Thursday 4

Waxing Gibbous 90%

18:57

03:04

19 Good
20 Good
21 OK
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
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad

Sun - Rise: 06:28, Set: 19:41, Transit: 13:04. Moon - Rise: 18:57, Set: 03:04. Civil Dark: 20:14 - 05:56. Nautical Dark: 20:53 - 05:17. Astro Dark: 21:35 - 04:35

Total Clouds (% Sky Obscured)

0
17
39
59
56
59
66
55
38
33
39
39
40
46
44
47
47
48
46
47
55
59
70
80

Low Clouds (% Sky Obscured)

0
3
6
9
10
8
9
14
10
13
4
4
4
4
4
4
8
7
6
3
3
2
3
4

Medium Clouds (% Sky Obscured)

0
0
0
0
2
3
5
5
5
5
20
39
40
46
44
47
47
48
46
47
55
40
27
17

High Clouds (% Sky Obscured)

0
17
39
59
56
59
66
55
38
33
39
39
40
46
44
47
47
42
19
42
55
59
65
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
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
1
2
6
23
47
65
85
95
95
95
95
66
59
50
26
27
22
10
19
16

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0.4
0.7
0.9
1.6
1.2
0.7
0.2
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

10
12
10
10
10
8
8
7
7
6
6
6
7
7
6
6
4
5
5
5
6
7
8
10

Relative Humidity (%)

68
83
82
82
80
76
73
69
69
67
68
66
65
64
54
47
40
38
36
34
38
41
45
54

Pressure (mb)

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

Ozone (du)

279
278
278
278
278
278
278
279
279
279
279
279
279
278
278
278
278
279
279
279
280
281
282
283

Friday 5

Waxing Gibbous 96%

18:57

04:25

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

Sun - Rise: 06:30, Set: 19:39, Transit: 13:03. Moon - Rise: 18:57, Set: 04:25. Civil Dark: 20:11 - 05:58. Nautical Dark: 20:51 - 05:18. Astro Dark: 21:33 - 04:37

Total Clouds (% Sky Obscured)

87
84
84
82
67
51
30
20
20
25
48
73
95
70
46
21
33
45
61

Low Clouds (% Sky Obscured)

5
4
14
21
19
14
9
15
20
25
29
21
14
9
5
0
0
1
1

Medium Clouds (% Sky Obscured)

0
0
0
0
1
2
3
5
5
4
3
3
6
7
6
0
7
9
13

High Clouds (% Sky Obscured)

39
38
33
32
23
14
15
9
8
7
33
64
94
70
41
18
24
29
29

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
6
4
1
3
6
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 (%)

12
39
52
55
43
32
4
4
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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

22
22
12
13
15
14
14
14
9
9
8
9
8
8
11
11
12
12
13

Dew Point (°C)

11
12
11
11
12
11
11
10
10
10
10
9
10
10
9
8
7
6
6

Relative Humidity (%)

66
80
84
90
96
95
96
96
98
98
100
96
95
91
79
67
56
51
47

Pressure (mb)

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

Ozone (du)

283
284
285
286
287
287
287
287
288
289
290
290
291
292
292
292
293
293
293

Forecast for Horská Kvilda, Klatovy District, Czech Republic (49.06,13.56)

Generated: 30/08/25 19:27:20. Forecast: 30/08/25 to 05/09/25. Timezone: UTC+2.00