Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 18

Waning Crescent 6%

04:10

18:39

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

Sun - Rise: 07:13, Set: 19:37, Transit: 13:25. Moon - Rise: 04:10, Set: 18:39. Civil Dark: 20:10 - 06:41. Nautical Dark: 20:49 - 06:02. Astro Dark: 21:30 - 05:21

Total Clouds (% Sky Obscured)

94
94
90
88
59
55
52
41
40
28
1
1
19
24
52
54
47
45
57
39
35
18
100
100

Low Clouds (% Sky Obscured)

78
71
68
71
51
47
46
41
40
28
0
0
19
24
21
28
37
38
41
37
0
0
0
0

Medium Clouds (% Sky Obscured)

10
25
15
0
2
0
0
0
0
0
0
0
0
0
0
0
0
2
0
0
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
3
2
1
0
1
1
1
1
34
34
22
13
44
13
35
18
100
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)

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

Chance of Frost

Temperature (°C)

19
20
21
23
24
24
23
21
19
18
17
16
15
15
15
15
14
13
13
13
13
16
19
21

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

57
55
56
54
54
57
59
67
77
79
81
79
79
80
79
82
83
84
84
84
82
72
61
53

Pressure (mb)

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

Ozone (du)

253
254
254
255
256
256
256
256
256
256
255
254
253
252
252
252
252
252
252
253
253
253
253
252

Friday 19

Waning Crescent 6%

05:27

18:54

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

Sun - Rise: 07:15, Set: 19:35, Transit: 13:24. Moon - Rise: 05:27, Set: 18:54. Civil Dark: 20:08 - 06:42. Nautical Dark: 20:47 - 06:03. Astro Dark: 21:27 - 05:23

Total Clouds (% Sky Obscured)

39
40
46
72
11
2
4
1
1
12
14
17
19
28
95
97
74
86
50
96
95
94
92
88

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
16
0
3
24
0
25
7
56
12
15

High Clouds (% Sky Obscured)

37
40
46
72
11
2
3
1
1
11
13
15
19
28
89
95
69
82
44
91
91
89
85
73

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)

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

Chance of Frost

Temperature (°C)

23
25
26
27
27
27
26
23
20
19
18
17
17
16
16
16
16
15
15
15
15
19
21
24

Feels Like (°C)

21
25
24
25
25
27
26
24
21
20
18
18
18
16
16
14
14
16
15
15
14
18
19
22

Dew Point (°C)

11
11
10
10
10
11
12
13
12
11
11
11
11
11
11
11
11
11
11
11
11
13
13
14

Relative Humidity (%)

45
40
37
35
33
36
42
53
59
62
65
67
71
72
72
72
72
74
74
75
74
69
61
53

Pressure (mb)

1024
1023
1023
1022
1021
1021
1020
1020
1020
1020
1020
1020
1020
1020
1019
1019
1018
1018
1017
1017
1017
1017
1017
1016

Ozone (du)

251
250
251
251
251
252
252
252
252
252
251
251
252
252
252
253
253
253
253
252
252
252
252
252

Saturday 20

Waning Crescent 2%

06:42

19:07

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
08 Bad
09 Bad
10 Bad
11 Bad

Sun - Rise: 07:16, Set: 19:33, Transit: 13:24. Moon - Rise: 06:42, Set: 19:07. Civil Dark: 20:05 - 06:44. Nautical Dark: 20:44 - 06:05. Astro Dark: 21:25 - 05:25

Total Clouds (% Sky Obscured)

65
77
78
98
80
100
100
100
99
96
98
99
96
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
15
37
34
30
54
49
48
61
72
77
90
78

Medium Clouds (% Sky Obscured)

16
18
32
30
35
29
85
100
96
83
91
59
77
99
86
59
95
100
100
100
100
100
100
100

High Clouds (% Sky Obscured)

48
20
25
93
57
100
100
71
87
88
92
91
78
86
100
100
69
83
89
100
84
100
98
100

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
8
4
6

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
Light Rain
None
None
None
None
None
Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

0
0
0
1
0
0
0
0
0
2
13
16
25
43
75
36
21
43
39
47
68
82
91
72

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.5
0
0
0
0
0
0.5
0.6
0.8
0.4

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

26
27
28
28
28
27
26
24
23
22
22
22
21
20
20
20
20
20
19
19
18
18
18
17

Feels Like (°C)

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

Dew Point (°C)

13
11
11
11
11
13
15
16
16
16
17
17
17
16
15
17
17
18
17
17
17
16
16
16

Relative Humidity (%)

45
38
36
34
34
41
50
61
65
68
72
73
75
74
74
84
85
88
89
91
90
92
90
93

Pressure (mb)

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

Ozone (du)

252
251
250
250
251
251
251
251
252
253
253
252
253
252
253
254
254
254
255
256
257
257
257
258

Sunday 21

New Moon 0%

07:54

19:18

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
08 Bad
09 Bad
10 Bad
11 Bad

Sun - Rise: 07:18, Set: 19:31, Transit: 13:23. Moon - Rise: 07:54, Set: 19:18. Civil Dark: 20:03 - 06:45. Nautical Dark: 20:42 - 06:07. Astro Dark: 21:22 - 05:27

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

66
55
36
17
0
2
5
11
24
40
57
59
60
62
50
38
26
44
63
81
70
58
47
48

Medium Clouds (% Sky Obscured)

100
100
97
99
98
96
95
94
94
94
95
96
97
98
56
30
70
65
0
0
0
0
0
10

High Clouds (% Sky Obscured)

98
100
100
98
99
95
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

ISS Passover

Visibility (miles)

6
9
9
9
9
9
9
9
9
4
2
7
6
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

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

Precipitation Probability (%)

53
42
24
20
17
18
23
26
95
95
95
78
53
20
31
26
23
7
10
8
9
10
6
8

Precipitation Amount (mm)

0.2
0
0
0
0
0
0
0
0.8
2.1
1
0.3
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

4
4
5
5
3
3
1
2
3
6
7
5
5
4
7
6
3
4
5
3
4
3
3
3

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

95
90
90
81
77
77
75
82
83
93
96
96
96
95
96
95
95
96
95
95
95
92
90
89

Pressure (mb)

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

Ozone (du)

260
261
262
262
262
263
263
264
264
263
264
265
265
267
268
269
270
272
274
274
273
275
276
278

Monday 22

Waxing Crescent 1%

09:05

19:28

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 OK
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad

Sun - Rise: 07:20, Set: 19:28, Transit: 13:23. Moon - Rise: 09:05, Set: 19:28. Civil Dark: 20:01 - 06:47. Nautical Dark: 20:39 - 06:08. Astro Dark: 21:20 - 05:29

Total Clouds (% Sky Obscured)

100
100
97
93
96
95
95
95
93
91
85
87
82
62
56
49
39
55
67
80
87
91
92
97

Low Clouds (% Sky Obscured)

47
47
33
19
6
5
5
8
10
10
8
12
17
12
8
5
1
5
8
17
26
33
43
55

Medium Clouds (% Sky Obscured)

48
91
27
8
0
6
16
35
41
88
54
40
33
19
22
21
17
7
8
13
13
13
13
9

High Clouds (% Sky Obscured)

100
100
97
93
96
95
95
95
68
37
5
3
2
0
0
0
0
32
63
80
87
91
92
97

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
4
9
9
7
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
Very Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

17
7
10
12
21
16
15
25
44
41
32
34
15
0
1
1
0
3
5
4
14
16
13
17

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0.2
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

3
2
2
2
1
2
2
2
2
1
2
1
2
2
1
1
2
2
2
2
2
3
5
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

10
10
10
9
9
8
9
9
9
9
10
10
10
10
10
9
10
9
9
10
10
10
9
8

Relative Humidity (%)

82
74
67
60
56
56
59
70
75
80
87
90
90
91
93
93
95
96
95
96
96
88
79
71

Pressure (mb)

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

Ozone (du)

279
280
281
284
285
284
285
288
290
293
294
295
295
296
296
298
299
300
301
302
302
302
302
301

Tuesday 23

Waxing Crescent 3%

10:17

19:40

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
08 Bad
09 Bad
10 Bad
11 Bad

Sun - Rise: 07:21, Set: 19:26, Transit: 13:23. Moon - Rise: 10:17, Set: 19:40. Civil Dark: 19:59 - 06:49. Nautical Dark: 20:37 - 06:10. Astro Dark: 21:17 - 05:30

Total Clouds (% Sky Obscured)

98
99
98
98
97
92
87
82
73
69
66
57
52
51
56
65
69
70
70
70
74
63
57
59

Low Clouds (% Sky Obscured)

65
75
78
77
74
75
77
79
72
68
66
57
52
51
56
60
49
44
39
39
38
38
38
39

Medium Clouds (% Sky Obscured)

9
9
5
0
0
0
5
5
10
14
17
23
24
20
20
14
9
5
10
10
9
13
17
18

High Clouds (% Sky Obscured)

95
95
96
97
97
70
42
14
11
8
5
35
52
51
56
65
69
70
70
55
41
24
3
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
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

18
15
58
77
89
95
95
95
95
84
48
40
29
11
12
11
6
11
13
14
28
33
36
34

Precipitation Amount (mm)

0
0
0.2
0.4
0.6
0.7
0.9
1.1
0.8
0.5
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

7
7
7
8
8
8
8
7
6
5
5
4
3
3
2
2
2
2
2
2
2
3
4
5

Chance of Frost

Temperature (°C)

13
14
14
14
15
15
13
12
11
11
10
9
9
9
9
8
8
7
7
7
7
9
11
13

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

69
67
64
59
54
50
54
60
66
69
73
78
80
80
80
82
84
87
87
87
85
75
65
58

Pressure (mb)

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

Ozone (du)

301
301
300
300
300
300
299
299
298
299
300
300
301
302
302
303
304
305
306
308
309
308
308
307

Wednesday 24

Waxing Crescent 7%

11:29

19:53

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: 07:23, Set: 19:24, Transit: 13:22. Moon - Rise: 11:29, Set: 19:53. Civil Dark: 19:56 - 06:50. Nautical Dark: 20:35 - 06:12. Astro Dark: 21:15 - 05:32

Total Clouds (% Sky Obscured)

60
57
58
59
60
61
61
61
74
80
88
77
65
54
53
58
62
62
62
62

Low Clouds (% Sky Obscured)

38
40
43
35
29
32
35
39
44
52
63
55
43
32
34
35
41
41
41
39

Medium Clouds (% Sky Obscured)

19
15
15
10
10
10
5
5
4
3
4
6
10
17
22
24
20
15
10
10

High Clouds (% Sky Obscured)

34
55
58
59
60
61
61
61
67
53
38
32
31
30
25
25
25
26
21
22

ISS Passover

Visibility (miles)

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

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

31
24
30
27
13
20
13
5
11
15
13
15
16
11
11
10
9
12
11
4

Precipitation Amount (mm)

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
7
8
8
7
7
7
6
5
5
4
4
3
3
2
2
2
2
2
2

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

10
10
10
15
14
13
13
13
13
8
9
9
9
9
9
8
9
9
10
9

Dew Point (°C)

4
3
3
2
2
1
1
3
3
4
5
7
6
7
6
6
7
6
6
6

Relative Humidity (%)

52
47
42
42
40
39
44
52
59
67
74
84
85
87
87
87
88
87
88
88

Pressure (mb)

1021
1021
1020
1020
1021
1021
1021
1022
1022
1023
1023
1024
1024
1024
1025
1025
1025
1025
1025
1026

Ozone (du)

307
306
306
305
305
304
303
302
301
300
300
299
299
299
299
298
298
297
297
297

Forecast for Rhöndorf, Cologne District, Germany (50.67,7.21)

Generated: 18/09/25 12:38:48. Forecast: 18/09/25 to 24/09/25. Timezone: UTC+2.00