Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 22

Waxing Crescent 6%

10:46

18:13

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
22 Bad
23 Bad

Sun - Rise: 08:37, Set: 16:10, Transit: 12:23. Moon - Rise: 10:46, Set: 18:13. Civil Dark: 16:52 - 07:54. Nautical Dark: 17:37 - 07:09. Astro Dark: 18:20 - 06:27

Total Clouds (% Sky Obscured)

98
88
70
69
70
67
59
51
50
58
61
47
57
49
60
69
83
76
92
74
75
81
70
74

Low Clouds (% Sky Obscured)

75
77
69
69
70
67
59
51
50
58
61
47
57
49
60
69
65
65
58
65
75
65
62
57

Medium Clouds (% Sky Obscured)

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

High Clouds (% Sky Obscured)

47
11
12
10
10
21
12
14
14
15
13
6
4
4
15
25
40
33
56
36
35
43
29
40

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

5
5
5
5
5
5
5
5
4
4
4
4
3
3
3
3
3
3
3
3
3
3
3
3

Relative Humidity (%)

91
91
94
94
94
93
93
93
93
93
91
86
82
78
78
79
83
86
88
89
89
91
91
91

Pressure (mb)

1015
1015
1015
1015
1015
1014
1015
1015
1015
1016
1016
1016
1016
1016
1016
1015
1016
1016
1016
1017
1017
1017
1018
1018

Ozone (du)

270
274
282
290
296
299
301
302
304
307
309
312
315
318
321
324
326
328
329
330
334
337
339
342

Tuesday 23

Waxing Crescent 12%

11:06

19:33

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 OK
18 Good
19 Good
20 OK
21 OK
22 Good
23 Good

Sun - Rise: 08:37, Set: 16:10, Transit: 12:24. Moon - Rise: 11:06, Set: 19:33. Civil Dark: 16:53 - 07:55. Nautical Dark: 17:38 - 07:10. Astro Dark: 18:20 - 06:27

Total Clouds (% Sky Obscured)

59
67
74
64
58
60
60
71
66
63
63
68
70
63
54
40
19
27
5
2
14
18
2
2

Low Clouds (% Sky Obscured)

56
61
57
52
54
55
59
69
66
63
63
68
67
63
54
40
18
27
2
1
14
18
1
2

Medium 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

High Clouds (% Sky Obscured)

20
22
28
17
6
7
6
23
19
15
8
7
9
4
3
3
2
2
5
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

89
89
89
89
89
88
88
88
88
88
85
79
75
69
69
69
72
73
76
78
78
80
83
88

Pressure (mb)

1018
1018
1019
1019
1019
1019
1019
1020
1020
1021
1022
1023
1023
1023
1023
1024
1024
1025
1026
1027
1028
1028
1029
1030

Ozone (du)

344
346
346
344
344
345
345
348
350
351
355
356
357
357
362
368
368
369
370
369
368
369
372
375

Wednesday 24

Waxing Crescent 19%

11:20

20:53

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

Sun - Rise: 08:37, Set: 16:11, Transit: 12:24. Moon - Rise: 11:20, Set: 20:53. Civil Dark: 16:53 - 07:55. Nautical Dark: 17:38 - 07:10. Astro Dark: 18:21 - 06:28

Total Clouds (% Sky Obscured)

2
39
69
63
41
38
23
62
46
50
65
49
47
45
40
31
29
0
11
19
28
34
33
28

Low Clouds (% Sky Obscured)

2
34
57
45
26
27
17
45
38
41
54
32
31
39
32
23
19
0
7
12
18
24
22
23

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
1
0
0
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
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-1
-2
-3
-3
-3
-3
-3
-3
-4
-4
-5
-5
-6
-7
-7
-7
-7
-8
-7
-7
-7
-8
-9
-10

Relative Humidity (%)

89
86
83
81
81
81
84
84
78
74
71
65
58
54
54
54
56
58
60
62
61
58
55
52

Pressure (mb)

1030
1031
1032
1032
1033
1033
1033
1033
1034
1035
1035
1036
1036
1035
1035
1035
1035
1036
1036
1036
1036
1036
1036
1036

Ozone (du)

368
365
364
363
365
368
368
366
363
361
360
358
355
352
352
354
355
356
356
357
354
354
354
355

Thursday 25

Waxing Crescent 28%

11:32

22:13

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

Sun - Rise: 08:38, Set: 16:12, Transit: 12:25. Moon - Rise: 11:32, Set: 22:13. Civil Dark: 16:54 - 07:55. Nautical Dark: 17:39 - 07:10. Astro Dark: 18:21 - 06:28

Total Clouds (% Sky Obscured)

27
16
9
0
0
0
0
0
0
0
0
0
0
0
0
0
5
10
14
34
55
81
87
62

Low Clouds (% Sky Obscured)

18
12
6
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
0
0
0
0
0
6
13

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
5
10
14
34
55
81
73
43

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

49
46
44
41
39
38
36
35
34
34
32
29
27
27
29
31
33
35
36
38
41
44
46
49

Pressure (mb)

1036
1036
1036
1036
1036
1036
1036
1036
1036
1036
1036
1036
1036
1035
1034
1034
1034
1034
1034
1034
1034
1034
1034
1034

Ozone (du)

354
355
354
353
355
352
348
343
335
332
331
331
333
335
335
334
330
328
326
323
320
315
312
311

Friday 26

Waxing Crescent 38%

11:42

23:34

00 Bad
01 Bad
02 OK
03 OK
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
22 Bad
23 OK

Sun - Rise: 08:38, Set: 16:13, Transit: 12:25. Moon - Rise: 11:42, Set: 23:34. Civil Dark: 16:55 - 07:56. Nautical Dark: 17:40 - 07:11. Astro Dark: 18:22 - 06:28

Total Clouds (% Sky Obscured)

64
52
44
39
50
59
68
68
62
71
73
70
67
74
78
86
89
91
91
84
78
72
57
42

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
8
13
20
27
32
38
37
34

Medium Clouds (% Sky Obscured)

19
18
18
14
17
20
26
29
32
32
29
26
22
27
31
33
46
56
64
54
47
39
32
18

High Clouds (% Sky Obscured)

18
17
12
10
10
10
9
8
4
6
10
15
25
25
25
30
30
20
15
8
3
0
1
1

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-12
-11
-11
-10
-10
-9
-9
-9
-9
-8
-8
-8
-8
-8
-8
-9
-9
-11
-13
-15
-15
-15
-15
-13

Relative Humidity (%)

52
54
58
60
63
64
65
66
66
68
64
58
55
53
53
53
53
45
39
35
34
34
34
39

Pressure (mb)

1034
1034
1034
1034
1034
1034
1034
1034
1034
1035
1035
1035
1035
1035
1035
1035
1035
1035
1036
1036
1036
1037
1037
1037

Ozone (du)

309
308
308
306
305
304
303
300
298
297
295
295
294
292
292
291
291
291
290
290
290
291
291
292

Saturday 27

First Quarter 49%

11:51

No Set

00 OK
01 OK
02 OK
03 Bad
04 OK
05 OK
06 OK
07 OK
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

Sun - Rise: 08:38, Set: 16:13, Transit: 12:26. Moon - Rise: 11:51, Set: No Set. Civil Dark: 16:56 - 07:56. Nautical Dark: 17:41 - 07:11. Astro Dark: 18:23 - 06:29

Total Clouds (% Sky Obscured)

38
42
45
49
44
39
34
39
45
48
48
52
53
51
57
59
64
63
66
66
66
59
56
54

Low Clouds (% Sky Obscured)

31
32
32
24
19
13
9
9
8
8
12
16
20
24
24
29
30
36
30
30
25
25
27
29

Medium Clouds (% Sky Obscured)

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

High Clouds (% Sky Obscured)

0
3
5
10
9
10
10
8
8
6
5
4
2
1
1
1
1
1
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-11
-10
-8
-6
-4
-4
-3
-3
-2
-1
0
1
2
3
3
3
3
2
2
1
1
1
1
2

Relative Humidity (%)

44
51
59
66
75
78
83
86
89
89
93
91
91
89
91
93
96
94
96
94
94
94
94
93

Pressure (mb)

1037
1037
1037
1037
1037
1037
1037
1038
1038
1038
1038
1038
1038
1037
1037
1037
1036
1036
1036
1036
1036
1036
1036
1035

Ozone (du)

293
293
293
293
293
293
292
292
292
292
292
291
291
290
292
294
295
297
299
300
302
303
304
303

Sunday 28

Waxing Gibbous 61%

12:02

00:57

Sun - Rise: 08:38, Set: 16:14, Transit: 12:26. Moon - Rise: 12:02, Set: 00:57. Civil Dark: 16:56 - 07:56. Nautical Dark: 17:41 - 07:11. Astro Dark: 18:24 - 06:29

Total Clouds (% Sky Obscured)

Low Clouds (% Sky Obscured)

Medium Clouds (% Sky Obscured)

High Clouds (% Sky Obscured)

ISS Passover

Visibility (miles)

Fog (%)

Precipitation Type

Precipitation Probability (%)

Precipitation Amount (mm)

Wind Speed/Direction (mph)

Chance of Frost

Temperature (°C)

Feels Like (°C)

Dew Point (°C)

Relative Humidity (%)

Pressure (mb)

Ozone (du)

Forecast for Altstadt, Germany (53.08,8.80)

Generated: 22/12/25 00:15:34. Forecast: 22/12/25 to 28/12/25. Timezone: UTC+1.00