Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 29

Waxing Gibbous 82%

12:21

03:04

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 OK
11 Good
12 Good
13 Good
14 Good
15 Good
16 OK
17 Bad
18 Bad
19 Bad
20 Bad
21 OK

Sun - Rise: 07:45, Set: 16:09, Transit: 11:57. Moon - Rise: 12:21, Set: 03:04. Civil Dark: 16:46 - 07:09. Nautical Dark: 17:25 - 06:29. Astro Dark: 18:03 - 05:51

Total Clouds (% Sky Obscured)

52
71
78
78
92
73
59
53
100
100
59
40
40
7
0
0
0
3
39
58
73
70
71
20

Low Clouds (% Sky Obscured)

52
71
78
78
87
56
57
46
69
67
55
40
40
5
0
0
0
3
39
58
73
70
71
15

Medium Clouds (% Sky Obscured)

0
0
1
27
25
63
40
39
45
50
36
40
40
0
0
0
0
1
32
27
25
2
0
0

High 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

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
3
0
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
Snow
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
3
7
8
20
31
40
59
33
12
2
1
0
0
0
0
0
0
0
4
11
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0.4
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

63
61
61
56
57
64
72
78
75
77
91
68
56
51
51
49
47
48
55
57
57
61
61
62

Pressure (mb)

1018
1018
1017
1017
1017
1017
1017
1017
1017
1018
1020
1021
1021
1021
1021
1021
1020
1021
1021
1021
1021
1021
1022
1022

Ozone (du)

299
300
296
296
296
303
304
303
290
296
306
308
314
319
324
325
330
334
339
341
343
349
352
357

Tuesday 30

Waxing Gibbous 90%

12:53

04:31

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

Sun - Rise: 07:45, Set: 16:10, Transit: 11:58. Moon - Rise: 12:53, Set: 04:31. Civil Dark: 16:47 - 07:09. Nautical Dark: 17:26 - 06:29. Astro Dark: 18:04 - 05:51

Total Clouds (% Sky Obscured)

23
19
16
16
16
19
24
24
17
5
5
5
49
58
52
68
100
97
100
99
100
100
100
100

Low Clouds (% Sky Obscured)

17
14
12
13
12
13
15
15
10
4
4
4
11
22
30
23
26
21
21
82
87
90
88
95

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
49
58
52
68
100
94
100
99
100
100
100
99

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3
0
1
27
4
0
0
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
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
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
Snow
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
15
24
25
7
5
4
4
7
16
21
31
25

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
0.1
0

Wind Speed/Direction (mph)

14
14
15
15
15
15
15
15
15
14
14
14
15
15
16
15
15
15
14
13
14
14
15
15

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-8
-7
-8
-8
-8
-9
-9
-8
-9
-9
-10
-10
-8
-8
-8
-7
-7
-7
-7
-6
-7
-7
-7
-7

Dew Point (°C)

-9
-9
-9
-9
-9
-9
-9
-9
-9
-10
-10
-11
-10
-10
-9
-9
-9
-10
-9
-9
-9
-9
-10
-9

Relative Humidity (%)

62
63
64
65
65
65
65
65
64
65
64
60
59
58
59
55
53
52
54
57
56
53
50
55

Pressure (mb)

1022
1023
1023
1023
1023
1022
1022
1022
1022
1022
1023
1023
1023
1022
1021
1020
1020
1019
1019
1019
1019
1019
1019
1018

Ozone (du)

365
364
362
361
363
362
363
368
366
361
359
360
361
359
356
354
351
351
351
352
352
348
344
345

Wednesday 31

Waxing Gibbous 88%

13:39

05:57

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
16 OK
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad

Sun - Rise: 07:45, Set: 16:11, Transit: 11:58. Moon - Rise: 13:39, Set: 05:57. Civil Dark: 16:47 - 07:09. Nautical Dark: 17:27 - 06:29. Astro Dark: 18:05 - 05:51

Total Clouds (% Sky Obscured)

94
97
81
90
84
69
54
92
96
95
93
100
86
65
79
51
90
35
36
97
100
100
100
100

Low Clouds (% Sky Obscured)

89
97
81
85
74
64
27
14
19
21
20
13
14
17
7
19
58
2
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

85
94
62
67
46
23
33
79
86
73
63
71
74
27
38
19
51
3
13
24
30
30
93
89

High Clouds (% Sky Obscured)

0
0
2
15
2
2
3
40
50
45
65
100
81
45
61
22
45
30
18
94
100
100
100
100

ISS Passover

Visibility (miles)

6
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 (%)

13
11
8
6
4
4
2
3
3
4
2
3
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)

16
17
17
16
14
15
15
14
13
14
13
12
12
11
8
5
3
3
3
3
4
5
9
10

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-8
-8
-8
-7
-7
-7
-7
-6
-7
-6
-6
-5
-5
-3
-1
1
2
-0
0
-1
-3
-4
-5
-5

Dew Point (°C)

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

Relative Humidity (%)

54
59
60
60
60
61
63
62
60
58
53
46
38
33
33
36
41
47
55
58
61
53
41
44

Pressure (mb)

1018
1017
1017
1017
1017
1016
1016
1015
1015
1015
1015
1015
1015
1014
1013
1011
1011
1010
1009
1009
1008
1008
1008
1007

Ozone (du)

346
348
349
350
350
348
344
334
330
327
327
326
322
323
321
320
317
316
318
322
324
333
344
347

Thursday 1

Waxing Gibbous 96%

14:41

07:14

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
19 Bad
20 Bad
21 Bad

Sun - Rise: 07:45, Set: 16:12, Transit: 11:59. Moon - Rise: 14:41, Set: 07:14. Civil Dark: 16:48 - 07:09. Nautical Dark: 17:28 - 06:29. Astro Dark: 18:06 - 05:51

Total Clouds (% Sky Obscured)

98
95
89
71
73
70
76
79
90
83
75
70
79
88
98
97
97
97
99
99
100
92
78
75

Low Clouds (% Sky Obscured)

33
56
42
23
7
3
4
1
0
1
1
2
6
5
4
5
6
8
19
40
80
80
65
70

Medium Clouds (% Sky Obscured)

90
87
83
25
13
19
20
27
12
9
9
17
52
81
90
92
93
94
95
97
100
81
63
65

High Clouds (% Sky Obscured)

88
74
5
50
67
70
76
79
89
81
75
70
70
75
85
80
85
85
61
62
18
11
4
47

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
1
1
1
2
1
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)

11
14
16
18
17
18
17
18
17
16
16
15
15
15
15
15
14
13
13
12
12
11
10
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-10
-9
-8
-7
-7
-6
-5
-6
-6
-6
-5
-5
-5
-5
-5
-4
-5
-5
-4
-4
-4
-4
-4
-4

Relative Humidity (%)

43
45
48
53
54
58
61
60
60
59
59
59
58
57
56
56
56
57
59
61
62
62
63
65

Pressure (mb)

1007
1007
1007
1007
1007
1007
1007
1006
1006
1007
1007
1007
1008
1007
1007
1007
1006
1007
1007
1007
1007
1007
1007
1007

Ozone (du)

362
395
420
415
411
401
394
388
389
394
392
394
392
388
378
376
375
368
368
367
366
366
372
371

Friday 2

Waxing Gibbous 100%

15:58

08:13

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
19 Bad
20 Bad
21 Bad

Sun - Rise: 07:45, Set: 16:13, Transit: 11:59. Moon - Rise: 15:58, Set: 08:13. Civil Dark: 16:49 - 07:09. Nautical Dark: 17:29 - 06:29. Astro Dark: 18:07 - 05:51

Total Clouds (% Sky Obscured)

76
67
68
75
89
100
100
100
100
100
100
98
80
90
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

76
2
0
0
0
0
0
0
3
4
4
4
2
2
63
72
83
91
93
92
92
91
91
90

Medium Clouds (% Sky Obscured)

61
57
63
66
83
90
100
100
100
100
99
92
78
86
100
100
99
98
97
96
99
99
99
99

High Clouds (% Sky Obscured)

43
13
18
53
71
100
100
93
100
92
100
66
32
27
20
22
20
22
45
68
91
90
90
90

ISS Passover

Visibility (miles)

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

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
Snow
Snow
Snow
Snow
Snow

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
3
4
3
32
45
56
60
64
67

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.3
0.3
0.3
0.4

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

68
66
60
52
51
51
52
54
56
56
57
55
52
48
47
53
59
65
71
78
88
96
94
92

Pressure (mb)

1007
1007
1006
1005
1004
1003
1003
1002
1001
1001
1001
1001
1000
1000
1000
999
999
999
999
999
999
999
1000
1000

Ozone (du)

368
363
368
362
359
352
336
305
289
294
301
307
308
314
319
316
318
319
321
323
326
328
334
341

Saturday 3

Full Moon 99%

17:24

08:56

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
19 Bad
20 Bad
21 Bad

Sun - Rise: 07:45, Set: 16:14, Transit: 11:59. Moon - Rise: 17:24, Set: 08:56. Civil Dark: 16:50 - 07:09. Nautical Dark: 17:30 - 06:29. Astro Dark: 18:08 - 05:51

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)

93
97
100
100
100
100
100
100
100
100
100
100
100
99
99
98
97
96
97
97
98
75
51
32

Medium Clouds (% Sky Obscured)

100
100
100
99
99
97
94
91
86
73
61
51
69
85
100
100
100
100
100
100
100
100
100
100

High Clouds (% Sky Obscured)

93
96
100
100
100
100
99
99
98
98
98
98
98
97
96
78
57
36
54
68
82
78
74
70

ISS Passover

Visibility (miles)

1
1
1
2
1
1
0
0
0
1
1
2
3
5
7
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

Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow
None
None
None
None
Snow
Snow
Snow
Snow
Snow
Snow
Snow
Snow

Precipitation Probability (%)

62
55
47
50
55
58
59
63
68
60
53
46
39
30
19
30
37
43
60
73
81
78
78
79

Precipitation Amount (mm)

0.3
0.2
0.1
0.1
0.2
0.2
0.2
0.3
0.4
0.3
0.2
0.1
0
0
0
0
0.1
0.2
0.2
0.3
0.4
0.4
0.4
0.5

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

89
91
91
91
91
91
91
91
92
92
94
92
92
89
87
84
83
84
83
83
84
86
87
89

Pressure (mb)

1001
1001
1001
1001
1000
1000
1000
1000
1000
1000
1001
1001
1002
1002
1002
1002
1002
1003
1003
1004
1005
1005
1006
1007

Ozone (du)

347
350
352
354
349
343
337
342
347
352
354
356
359
358
357
357
356
356
356
358
360
362
364
367

Sunday 4

Waning Gibbous 96%

18:49

09:26

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: 07:44, Set: 16:15, Transit: 12:00. Moon - Rise: 18:49, Set: 09:26. Civil Dark: 16:51 - 07:08. Nautical Dark: 17:31 - 06:29. Astro Dark: 18:09 - 05:51

Total Clouds (% Sky Obscured)

98
97
96
92
89
85
84
86
88
73
54
46
50
53
71
78
77
81
81
82
83

Low Clouds (% Sky Obscured)

33
30
32
35
34
33
31
25
22
16
13
9
13
15
19
16
18
20
19
21
19

Medium Clouds (% Sky Obscured)

96
92
88
81
74
67
72
78
82
65
54
40
44
39
38
37
31
17
9
9
9

High Clouds (% Sky Obscured)

52
34
13
12
10
8
5
3
0
0
0
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

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

Snow
Snow
Snow
Snow
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

74
68
62
50
40
29
25
20
13
12
10
2
4
3
1
1
1
0
0
0
0

Precipitation Amount (mm)

0.4
0.4
0.3
0.2
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
9
9
9
9
9
9
10
10
11
11
11
11
10
10
9
9
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-6
-6
-6
-7
-7
-7
-7
-8
-7
-8
-7
-7
-7
-7
-6
-6
-6
-6
-6
-7
-7

Relative Humidity (%)

89
90
92
92
90
90
90
89
89
87
85
84
81
79
79
78
81
84
85
87
87

Pressure (mb)

1009
1009
1010
1011
1011
1012
1012
1012
1013
1013
1014
1014
1015
1015
1015
1015
1015
1015
1016
1016
1017

Ozone (du)

369
368
366
365
364
362
361
360
358
357
359
360
362
363
365
367
369
371
374
375
376

Forecast for Ottakring, Vienna, Republic of Austria (48.22,16.30)

Generated: 29/12/25 22:46:01. Forecast: 29/12/25 to 04/01/26. Timezone: UTC+1.00