Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 18

Waning Crescent 1%

07:21

15:39

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
12 Bad
13 Bad
14 Bad
15 Bad

Sun - Rise: 07:57, Set: 16:38, Transit: 12:17. Moon - Rise: 07:21, Set: 15:39. Civil Dark: 17:15 - 07:19. Nautical Dark: 17:56 - 06:38. Astro Dark: 18:36 - 05:59

Total Clouds (% Sky Obscured)

93
94
96
92
91
93
93
84
89
97
94
95
94
100
100
99
100
100
99
98
100
100
100
99

Low Clouds (% Sky Obscured)

93
67
89
86
72
76
82
84
81
90
83
90
90
100
100
99
100
99
98
97
100
94
100
98

Medium Clouds (% Sky Obscured)

54
65
52
88
80
83
68
21
34
81
89
70
73
15
22
42
47
80
46
73
100
100
100
97

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
0
0
0
0
0

ISS Passover

Visibility (miles)

9
9
2
9
2
9
9
9
9
0
0
0
0
3
3
9
9
9
3
3
9
0
0
0

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
0

Precipitation Type

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

Precipitation Probability (%)

45
48
58
39
26
7
6
3
31
59
59
70
54
38
7
5
11
21
21
9
87
95
66
36

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0.5
0.4
0.6
0.3
0
0
0
0
0
0
0
1.2
1.4
0.4
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

71
76
91
88
80
88
83
85
88
93
96
96
96
93
91
88
86
85
86
85
83
96
96
96

Pressure (mb)

1015
1015
1015
1014
1014
1013
1013
1012
1011
1011
1010
1009
1008
1007
1007
1006
1006
1006
1005
1005
1004
1003
1003
1002

Ozone (du)

286
291
292
292
294
292
293
291
289
288
290
292
293
290
294
303
307
304
301
299
299
297
296
296

Wednesday 19

Waning Crescent 0%

08:34

16:02

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
12 Bad
13 Bad
14 Bad
15 Bad

Sun - Rise: 07:58, Set: 16:37, Transit: 12:17. Moon - Rise: 08:34, Set: 16:02. Civil Dark: 17:14 - 07:21. Nautical Dark: 17:55 - 06:40. Astro Dark: 18:35 - 06:00

Total Clouds (% Sky Obscured)

99
94
100
100
100
100
100
100
100
100
100
91
100
90
81
66
64
68
80
82
99
85
75
67

Low Clouds (% Sky Obscured)

98
81
100
96
91
70
94
87
87
84
58
48
66
41
67
58
57
68
80
82
99
83
71
39

Medium Clouds (% Sky Obscured)

83
89
92
100
100
100
100
100
100
100
99
48
48
46
36
20
12
4
2
0
6
4
4
15

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
1
1
4
61
24
15
1
3
0
0
0
0
3
4
7

ISS Passover

Visibility (miles)

0
3
3
3
3
0
3
5
0
0
6
9
9
9
9
9
9
9
9
9
9
9
9
3

Fog (%)

0
0
0
0
0
3
39
57
15
2
0
0
0
99
100
88
47
35
11
2
0
0
0
0

Precipitation Type

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

Precipitation Probability (%)

23
42
53
67
72
54
35
50
55
28
7
2
0
0
0
0
0
0
0
0
7
16
17
17

Precipitation Amount (mm)

0
0
0
0.4
0.5
0
0
0.3
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

2
2
2
2
2
2
1
1
2
1
0
-1
-1
-1
-2
-2
-2
-2
-1
-1
-0
0
-1
0

Relative Humidity (%)

94
93
93
93
93
94
91
94
96
96
91
91
91
91
91
91
92
89
84
84
83
82
79
85

Pressure (mb)

1002
1002
1002
1002
1003
1003
1004
1004
1004
1004
1005
1006
1006
1007
1007
1008
1009
1010
1010
1011
1011
1011
1011
1011

Ozone (du)

303
316
329
333
329
322
323
332
335
336
332
327
323
326
330
332
330
325
324
323
322
319
316
315

Thursday 20

New Moon 2%

09:43

16:02

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
12 Bad
13 Bad
14 OK
15 OK

Sun - Rise: 08:00, Set: 16:36, Transit: 12:17. Moon - Rise: 09:43, Set: 16:02. Civil Dark: 17:13 - 07:22. Nautical Dark: 17:54 - 06:41. Astro Dark: 18:34 - 06:02

Total Clouds (% Sky Obscured)

100
100
91
82
86
93
99
96
91
100
96
87
89
80
73
75
78
82
81
79
64
49
32
17

Low Clouds (% Sky Obscured)

35
58
68
75
86
93
99
96
91
100
93
87
89
76
73
75
78
82
81
78
53
39
26
12

Medium Clouds (% Sky Obscured)

32
77
90
19
3
2
16
4
2
6
8
4
32
20
9
16
22
4
17
44
27
19
10
17

High Clouds (% Sky Obscured)

13
10
3
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

0
0
3
0
9
6
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

0
0
0
1
3
4
3
2
2
2
72
87
71
61
48
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 (%)

17
8
13
15
17
13
3
1
3
4
13
14
10
9
2
1
4
1
11
15
13
11
12
8

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-1
-1
-2
-2
-1
-1
-2
-2
-2
-1
-2
-0
0
-1
-0
-0
-1
-1
0
1
1
1
1
1

Dew Point (°C)

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

Relative Humidity (%)

94
94
94
93
91
88
86
78
75
77
83
88
88
89
91
89
87
86
77
72
69
67
67
68

Pressure (mb)

1011
1012
1012
1013
1013
1014
1014
1014
1015
1015
1015
1016
1016
1016
1017
1017
1018
1019
1019
1020
1020
1020
1021
1021

Ozone (du)

317
320
321
320
323
328
331
334
335
333
333
333
331
330
330
333
333
335
337
338
336
334
333
335

Friday 21

Waxing Crescent 5%

10:45

16:34

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

Sun - Rise: 08:01, Set: 16:35, Transit: 12:18. Moon - Rise: 10:45, Set: 16:34. Civil Dark: 17:12 - 07:24. Nautical Dark: 17:54 - 06:43. Astro Dark: 18:33 - 06:03

Total Clouds (% Sky Obscured)

20
29
37
43
53
62
70
75
81
80
78
81
66
50
30
25
20
15
16
18
19
37
55
74

Low Clouds (% Sky Obscured)

20
27
34
43
53
62
68
74
81
80
78
81
64
47
30
25
20
15
12
8
5
3
2
2

Medium Clouds (% Sky Obscured)

5
29
37
43
53
62
65
3
0
0
0
0
0
4
4
4
3
3
3
6
5
5
2
5

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
5
9
14
34
55
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 (%)

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

Chance of Frost

Temperature (°C)

2
1
1
0
0
-0
-0
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
0
1
1
2
2
2

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

72
78
80
83
83
83
83
81
84
86
87
87
87
84
81
75
74
77
74
70
64
59
57
57

Pressure (mb)

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

Ozone (du)

336
338
338
336
334
327
326
322
317
313
307
305
302
299
301
302
302
302
301
298
298
298
296
288

Saturday 22

Waxing Crescent 10%

11:34

17:19

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
12 Bad
13 Bad
14 Bad
15 OK

Sun - Rise: 08:03, Set: 16:34, Transit: 12:18. Moon - Rise: 11:34, Set: 17:19. Civil Dark: 17:11 - 07:25. Nautical Dark: 17:53 - 06:44. Astro Dark: 18:32 - 06:04

Total Clouds (% Sky Obscured)

84
91
99
99
97
96
97
99
100
98
96
94
79
73
75
90
84
78
75
73
72
60
50
40

Low Clouds (% Sky Obscured)

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

Medium Clouds (% Sky Obscured)

20
32
46
85
85
88
97
99
97
96
91
88
67
63
75
86
79
70
65
53
45
35
27
15

High Clouds (% Sky Obscured)

84
91
99
90
79
69
79
90
100
93
84
76
51
26
0
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
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
5
4
5
6
7
7
7
6
6
6
6
6
6
7
7
7
8
9
9
10
10
10
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-6
-6
-6
-5
-4
-4
-3
-4
-4
-4
-5
-5
-5
-5
-5
-5
-5
-5
-5
-6
-6
-7
-7
-7

Relative Humidity (%)

60
62
65
68
75
78
78
77
77
77
75
75
74
74
74
74
71
69
66
59
54
49
50
51

Pressure (mb)

1021
1021
1021
1020
1020
1020
1020
1019
1019
1018
1018
1018
1017
1017
1017
1016
1015
1015
1014
1014
1013
1013
1012
1012

Ozone (du)

282
281
280
279
279
284
294
299
300
297
294
293
293
291
291
288
288
287
286
284
282
280
278
277

Sunday 23

Waxing Crescent 16%

12:12

18:17

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
12 Bad
13 Bad
14 Bad
15 Bad

Sun - Rise: 08:05, Set: 16:33, Transit: 12:18. Moon - Rise: 12:12, Set: 18:17. Civil Dark: 17:11 - 07:27. Nautical Dark: 17:52 - 06:45. Astro Dark: 18:32 - 06:05

Total Clouds (% Sky Obscured)

60
81
100
100
99
99
99
99
100
98
96
94
96
98
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

6
7
9
26
43
60
52
45
38
27
18
10
12
17
19
42
64
83
64
48
41
62
79
95

Medium Clouds (% Sky Obscured)

37
55
75
82
88
95
94
92
90
92
94
94
96
97
100
96
93
91
93
94
96
96
96
96

High Clouds (% Sky Obscured)

0
3
3
10
10
10
24
49
60
61
62
58
59
77
100
100
100
100
100
100
100
100
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
Very Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

3
7
10
19
24
27
25
22
16
14
11
9
13
15
13
18
19
20
38
50
59
80
95
95

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.4
0.7
1.1

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

52
55
56
59
59
60
63
66
70
74
76
76
77
77
78
80
78
77
77
73
69
67
68
69

Pressure (mb)

1011
1011
1010
1010
1010
1009
1009
1008
1008
1007
1006
1006
1005
1004
1003
1002
1001
1000
999
998
996
995
994
993

Ozone (du)

275
275
276
277
277
277
277
276
275
274
272
271
269
270
270
270
270
271
271
271
271
270
272
273

Monday 24

Waxing Crescent 15%

12:39

19:25

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
12 Bad

Sun - Rise: 08:06, Set: 16:32, Transit: 12:19. Moon - Rise: 12:39, Set: 19:25. Civil Dark: 17:10 - 07:28. Nautical Dark: 17:51 - 06:46. Astro Dark: 18:31 - 06:07

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
99
98
97
96
97
98
99
98
97
97

Low Clouds (% Sky Obscured)

89
84
79
87
94
100
100
100
100
85
70
58
51
51
45
45
45
46
52
53
48

Medium Clouds (% Sky Obscured)

95
94
92
92
91
91
82
72
66
78
88
98
95
92
89
85
82
78
81
83
80

High Clouds (% Sky Obscured)

72
40
10
14
13
25
34
43
65
68
76
80
85
90
90
85
75
60
45
40
40

ISS Passover

Visibility (miles)

9
8
6
5
6
8
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

Precipitation Type

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

Precipitation Probability (%)

95
95
95
93
88
85
79
74
69
69
63
53
57
61
66
58
51
46
41
35
35

Precipitation Amount (mm)

0.9
0.7
0.6
0.5
0.6
0.7
0.5
0.4
0.3
0.3
0.3
0
0.2
0.3
0.3
0.2
0.2
0.2
0.1
0
0.1

Wind Speed/Direction (mph)

13
12
12
11
9
9
7
6
5
5
3
4
5
5
5
5
4
3
3
4
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

71
76
82
86
83
80
76
75
71
68
68
66
66
65
65
64
63
61
60
61
61

Pressure (mb)

992
992
992
992
992
992
992
992
992
993
993
994
995
996
996
997
998
999
1000
1000
1001

Ozone (du)

275
277
280
282
284
287
289
290
290
291
292
292
293
295
297
298
297
295
294
292
290

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

Generated: 18/11/25 16:24:26. Forecast: 18/11/25 to 24/11/25. Timezone: UTC+1.00