Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 18

Waning Crescent 12%

04:09

18:42

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

Sun - Rise: 07:12, Set: 19:38, Transit: 13:25. Moon - Rise: 04:09, Set: 18:42. Civil Dark: 20:11 - 06:41. Nautical Dark: 20:51 - 06:01. Astro Dark: 21:33 - 05:20

Total Clouds (% Sky Obscured)

71
73
66
88
68
66
66
64
71
91
71
39
48
51
26
25
59
52
12
68
67
50
61
77

Low Clouds (% Sky Obscured)

71
67
44
88
68
65
66
60
52
81
51
32
41
42
24
25
24
17
12
18
5
0
0
0

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
17
10
22
0
6
7
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
37
28
0
41
65
50
54
74

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)

9
9
9
10
12
12
12
12
12
10
9
9
7
5
5
5
4
4
4
4
4
4
4
4

Chance of Frost

Temperature (°C)

14
15
15
17
18
19
20
21
22
22
22
22
20
19
18
17
17
17
16
15
15
15
15
15

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

71
71
69
68
66
62
60
56
57
60
60
57
58
62
67
72
74
74
74
74
74
74
75
75

Pressure (mb)

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

Ozone (du)

254
254
255
255
256
255
255
255
256
257
258
257
257
256
254
253
253
253
254
254
254
254
255
255

Friday 19

Waning Crescent 6%

05:27

18:56

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

Sun - Rise: 07:14, Set: 19:36, Transit: 13:25. Moon - Rise: 05:27, Set: 18:56. Civil Dark: 20:09 - 06:42. Nautical Dark: 20:49 - 06:03. Astro Dark: 21:30 - 05:22

Total Clouds (% Sky Obscured)

77
50
40
39
26
24
64
74
28
26
16
11
10
10
100
57
12
68
99
30
54
100
100
99

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
64
65
30
54
11
19
11

High Clouds (% Sky Obscured)

77
50
40
39
24
24
61
72
25
26
16
11
10
10
100
57
12
68
99
30
54
100
100
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

14
13
17
19
19
23
23
24
26
25
24
23
22
20
20
19
18
19
18
18
17
17
17
17

Dew Point (°C)

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

Relative Humidity (%)

75
73
67
57
50
44
39
36
34
33
36
42
49
51
55
57
60
63
64
65
67
67
67
69

Pressure (mb)

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

Ozone (du)

255
255
255
254
254
253
251
251
251
252
253
254
254
254
254
254
253
252
251
250
249
250
250
250

Saturday 20

Waning Crescent 2%

06:42

19:08

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
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad

Sun - Rise: 07:15, Set: 19:34, Transit: 13:25. Moon - Rise: 06:42, Set: 19:08. Civil Dark: 20:07 - 06:44. Nautical Dark: 20:46 - 06:05. Astro Dark: 21:27 - 05:24

Total Clouds (% Sky Obscured)

96
100
100
100
98
96
100
100
70
100
100
84
89
100
99
97
100
94
89
99
100
100
100
100

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
27
43
42
79
85
80
78
73
75
77

Medium Clouds (% Sky Obscured)

39
34
37
24
20
24
27
26
36
46
51
65
87
89
58
63
61
75
55
87
94
86
98
100

High Clouds (% Sky Obscured)

80
97
90
100
94
86
100
91
39
100
100
41
72
74
96
93
96
73
72
84
58
68
78
71

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
Light Rain
Light Rain
Light Rain
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
3
5
3
1
14
10
32
64
90
87
45
40
35
24
18

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.5
0.9
0.8
0
0
0
0
0

Wind Speed/Direction (mph)

6
6
7
8
9
11
11
10
10
11
9
7
5
4
6
5
6
5
5
5
4
4
4
4

Chance of Frost

Temperature (°C)

18
18
20
21
23
25
26
27
28
28
27
25
24
23
22
21
20
19
18
18
18
18
17
17

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

69
69
65
57
51
46
41
36
31
35
41
45
53
55
57
63
67
68
73
73
73
72
73
73

Pressure (mb)

1017
1016
1016
1016
1016
1015
1014
1014
1013
1013
1012
1012
1012
1012
1013
1013
1014
1013
1013
1013
1013
1013
1013
1012

Ozone (du)

251
251
251
251
250
250
249
249
249
249
250
250
251
251
251
251
251
251
251
252
252
253
253
253

Sunday 21

New Moon 0%

No Rise

19:18

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
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad

Sun - Rise: 07:17, Set: 19:31, Transit: 13:24. Moon - Rise: No Rise, Set: 19:18. Civil Dark: 20:04 - 06:46. Nautical Dark: 20:44 - 06:06. Astro Dark: 21:25 - 05:26

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
90
78
69
69
72

Low Clouds (% Sky Obscured)

79
63
47
32
39
45
54
57
63
68
67
65
64
64
64
64
54
44
34
31
28
29
44
59

Medium Clouds (% Sky Obscured)

100
100
90
72
82
100
99
100
100
100
100
100
100
36
39
61
31
39
23
63
52
57
57
61

High Clouds (% Sky Obscured)

86
90
67
68
79
91
100
100
100
100
100
100
100
100
100
100
100
100
100
81
61
42
28
14

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

30
42
52
63
69
87
95
95
90
95
94
57
46
29
16
11
10
21
17
23
85
95
95
95

Precipitation Amount (mm)

0
0
0
0.3
0.2
0.4
1.4
0.6
0.6
0.7
0.8
0.2
0.2
0
0
0
0
0
0
0
0.4
2.2
4.6
3.1

Wind Speed/Direction (mph)

4
4
5
9
7
7
6
4
6
5
5
4
3
3
2
2
3
3
3
3
4
6
6
6

Chance of Frost

Temperature (°C)

17
16
16
16
16
16
16
16
16
15
15
15
15
15
15
15
14
14
14
14
13
13
13
12

Feels Like (°C)

17
16
16
15
15
15
16
17
16
16
16
16
16
16
16
16
15
15
15
14
13
12
12
12

Dew Point (°C)

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

Relative Humidity (%)

72
79
81
73
74
71
79
93
92
93
95
96
96
96
95
95
95
95
93
93
93
95
95
96

Pressure (mb)

1012
1012
1013
1013
1014
1013
1013
1013
1013
1013
1013
1013
1013
1013
1014
1014
1013
1014
1013
1013
1013
1012
1012
1012

Ozone (du)

253
253
253
254
255
255
256
257
257
259
259
260
260
262
262
264
264
265
265
265
265
266
265
266

Monday 22

Waxing Crescent 1%

07:55

19:28

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 OK
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad

Sun - Rise: 07:19, Set: 19:29, Transit: 13:24. Moon - Rise: 07:55, Set: 19:28. Civil Dark: 20:02 - 06:47. Nautical Dark: 20:41 - 06:08. Astro Dark: 21:22 - 05:27

Total Clouds (% Sky Obscured)

74
77
78
81
77
76
73
77
82
88
74
57
37
69
57
45
60
78
97
100
100
100
100
99

Low Clouds (% Sky Obscured)

74
77
78
81
73
66
61
63
68
69
52
48
36
51
28
5
17
32
56
66
74
83
89
93

Medium Clouds (% Sky Obscured)

60
65
65
57
9
10
16
19
22
24
16
8
3
36
44
45
49
51
58
68
78
90
91
93

High Clouds (% Sky Obscured)

0
5
5
5
5
5
5
5
0
0
0
2
0
0
0
0
0
0
0
0
0
0
2
9

ISS Passover

Visibility (miles)

0
1
3
5
5
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
7
5

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

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

Precipitation Probability (%)

95
82
43
68
52
25
5
19
25
22
7
8
3
7
8
4
10
12
11
12
13
15
65
95

Precipitation Amount (mm)

2.8
0.3
0
0.4
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.9

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

12
12
11
12
12
11
12
12
12
12
12
11
11
11
11
11
11
11
11
10
10
11
11
11

Relative Humidity (%)

96
96
95
93
93
93
93
92
90
89
87
83
86
89
90
90
92
93
93
92
92
95
96
95

Pressure (mb)

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

Ozone (du)

265
268
271
272
273
273
274
275
276
279
280
282
282
282
282
282
283
284
285
286
288
291
294
295

Tuesday 23

Waxing Crescent 3%

09:07

19:39

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
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad

Sun - Rise: 07:20, Set: 19:27, Transit: 13:23. Moon - Rise: 09:07, Set: 19:39. Civil Dark: 20:00 - 06:49. Nautical Dark: 20:39 - 06:10. Astro Dark: 21:20 - 05:29

Total Clouds (% Sky Obscured)

99
99
100
100
98
95
93
95
98
100
100
100
100
100
100
100
95
92
91
91
91
90
88
85

Low Clouds (% Sky Obscured)

97
96
96
96
92
88
84
91
95
100
100
100
100
80
62
46
41
46
53
69
78
84
76
66

Medium Clouds (% Sky Obscured)

94
93
92
91
89
86
81
77
74
71
49
31
10
24
37
49
62
71
82
78
74
72
64
56

High Clouds (% Sky Obscured)

11
47
73
100
97
88
80
87
93
100
93
89
87
90
93
96
93
90
84
77
82
80
85
85

ISS Passover

Visibility (miles)

3
1
4
7
9
8
7
6
7
8
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
Light Rain
Moderate Rain
Light Rain
Light Rain
None
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
None
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain

Precipitation Probability (%)

95
95
95
95
95
85
47
62
71
77
71
69
70
76
81
84
77
68
58
66
68
62
68
67

Precipitation Amount (mm)

1.6
1.7
2.1
2.8
1.5
0.6
0
0.3
0.4
0.5
0.4
0.4
0.3
0.4
0.5
0.5
0.4
0.3
0
0.2
0.3
0.2
0.3
0.3

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

11
11
11
11
10
11
10
10
11
10
11
11
10
10
9
10
10
9
9
9
8
8
8
8

Dew Point (°C)

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

Relative Humidity (%)

96
96
96
95
95
92
90
88
87
86
86
86
87
86
87
87
88
88
90
90
91
91
93
91

Pressure (mb)

1016
1016
1016
1016
1016
1016
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1016

Ozone (du)

296
298
300
302
305
304
303
302
304
305
307
307
308
309
309
310
311
313
315
317
319
321
323
325

Wednesday 24

Waxing Crescent 7%

10:20

19:51

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 OK
23 OK
00 OK
01 OK

Sun - Rise: 07:22, Set: 19:24, Transit: 13:23. Moon - Rise: 10:20, Set: 19:51. Civil Dark: 19:57 - 06:50. Nautical Dark: 20:37 - 06:11. Astro Dark: 21:17 - 05:31

Total Clouds (% Sky Obscured)

81
82
79
67
67
63
63
69
73
77
82
86
87
78
62
41
37
30
24

Low Clouds (% Sky Obscured)

58
51
44
35
35
35
32
37
44
51
56
59
63
57
51
41
37
30
19

Medium Clouds (% Sky Obscured)

42
43
37
36
36
35
40
45
45
45
29
27
22
25
25
24
20
22
24

High Clouds (% Sky Obscured)

81
82
79
67
65
60
40
35
25
20
15
10
10
10
8
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

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 (%)

50
46
40
26
21
18
19
17
16
9
15
15
12
11
10
8
7
6
5

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

93
91
84
76
70
61
54
48
48
47
46
53
61
69
71
73
76
78
80

Pressure (mb)

1016
1016
1016
1017
1017
1017
1018
1018
1018
1018
1018
1019
1019
1020
1021
1021
1022
1022
1022

Ozone (du)

327
329
328
326
325
323
322
321
318
316
314
312
310
307
305
303
301
300
300

Forecast for Velbert, Düsseldorf District, Germany (51.34,7.04)

Generated: 18/09/25 07:03:26. Forecast: 18/09/25 to 24/09/25. Timezone: UTC+2.00