Clear Outside v1.0 - International Weather Forecasts For Astronomers

Wednesday 24

Waxing Crescent 19%

11:19

21:07

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

Sun - Rise: 08:31, Set: 16:30, Transit: 12:31. Moon - Rise: 11:19, Set: 21:07. Civil Dark: 17:09 - 07:52. Nautical Dark: 17:51 - 07:10. Astro Dark: 18:31 - 06:30

Total Clouds (% Sky Obscured)

24
28
35
34
19
23
23
40
43
32
27
23
0
0
0
0
0
11
0
0
0
0
0
0

Low Clouds (% Sky Obscured)

24
28
35
33
19
23
23
40
43
32
27
23
0
0
0
0
0
11
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
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-6
-6
-6
-7
-7
-8
-8
-9
-10
-11
-12
-14
-15
-16
-16
-14
-13
-13
-13
-13
-12
-12
-12
-12

Relative Humidity (%)

63
61
57
54
52
52
54
55
53
49
46
41
37
35
37
40
44
46
47
48
49
50
51
50

Pressure (mb)

1030
1030
1030
1029
1029
1029
1029
1029
1029
1029
1029
1029
1029
1028
1028
1028
1028
1028
1028
1027
1027
1028
1028
1029

Ozone (du)

398
402
399
398
398
397
393
390
389
388
388
386
384
387
388
386
384
383
381
381
377
374
372
369

Thursday 25

Waxing Crescent 28%

11:34

22:24

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

Sun - Rise: 08:32, Set: 16:31, Transit: 12:31. Moon - Rise: 11:34, Set: 22:24. Civil Dark: 17:10 - 07:53. Nautical Dark: 17:52 - 07:10. Astro Dark: 18:32 - 06:30

Total Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
3
3

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

49
45
44
43
44
46
48
53
55
56
58
61
62
63
64
65
67
68
69
69
71
71
71
71

Pressure (mb)

1029
1029
1028
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1028
1027
1027
1027
1028
1028
1028

Ozone (du)

371
372
372
369
370
367
359
356
356
353
350
346
343
339
335
331
328
326
324
321
317
315
312
310

Friday 26

Waxing Crescent 38%

11:46

23:41

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

Sun - Rise: 08:32, Set: 16:31, Transit: 12:32. Moon - Rise: 11:46, Set: 23:41. Civil Dark: 17:10 - 07:53. Nautical Dark: 17:53 - 07:11. Astro Dark: 18:33 - 06:31

Total Clouds (% Sky Obscured)

3
17
5
4
14
14
3
1
0
0
2
3
0
0
0
0
0
1
1
0
0
0
0
0

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

High Clouds (% Sky Obscured)

3
13
3
3
14
13
3
1
0
0
1
3
0
0
0
0
0
1
1
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-7
-6
-6
-5
-5
-4
-4
-5
-7
-8
-10
-11
-11
-12
-12
-13
-12
-12
-12
-12
-11
-11
-10
-9

Relative Humidity (%)

66
59
55
53
53
58
63
61
59
53
49
45
44
42
43
42
42
43
46
48
49
51
53
55

Pressure (mb)

1029
1029
1029
1028
1028
1029
1029
1029
1030
1030
1031
1031
1031
1032
1032
1032
1032
1032
1032
1032
1032
1032
1032
1033

Ozone (du)

310
310
310
308
306
306
305
304
304
303
302
302
302
302
302
302
300
298
298
297
296
296
296
295

Saturday 27

First Quarter 49%

11:59

01:01

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

Sun - Rise: 08:32, Set: 16:32, Transit: 12:32. Moon - Rise: 11:59, Set: 01:01. Civil Dark: 17:11 - 07:53. Nautical Dark: 17:53 - 07:11. Astro Dark: 18:33 - 06:31

Total Clouds (% Sky Obscured)

0
0
0
0
1
4
5
4
1
3
5
5
14
22
35
22
9
0
22
46
69
46
23
0

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
9
18
28
18
9
0
22
46
69
46
23
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
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
3
5
2
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
17
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

51
48
47
46
48
53
61
74
84
89
94
94
84
81
81
86
86
87
94
92
91
92
89
86

Pressure (mb)

1033
1033
1032
1032
1032
1031
1031
1031
1032
1032
1032
1032
1032
1032
1032
1032
1032
1032
1032
1032
1033
1033
1033
1034

Ozone (du)

294
292
291
291
291
292
293
294
294
293
292
294
296
296
294
291
292
295
294
293
291
289
287
288

Sunday 28

Waxing Gibbous 61%

12:12

02:24

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

Sun - Rise: 08:32, Set: 16:33, Transit: 12:33. Moon - Rise: 12:12, Set: 02:24. Civil Dark: 17:12 - 07:53. Nautical Dark: 17:54 - 07:11. Astro Dark: 18:34 - 06:31

Total Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
1
2
4
5
8
11
16
16
16
14
13
10
7
14
19
26

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
2
4
5
8
11
16
16
16
14
13
9
2
10
15
21

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)

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

74
60
46
38
39
45
50
54
59
61
62
63
64
65
64
64
64
64
63
63
63
63
66
70

Pressure (mb)

1034
1035
1034
1034
1034
1034
1034
1034
1034
1034
1034
1034
1034
1033
1033
1033
1033
1032
1032
1032
1031
1031
1031
1031

Ozone (du)

289
291
292
290
288
285
286
285
286
285
284
285
283
284
283
281
281
280
280
280
280
280
280
280

Monday 29

Waxing Gibbous 72%

12:28

03:51

10 OK
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
07 Bad
08 Bad
09 Bad

Sun - Rise: 08:32, Set: 16:34, Transit: 12:33. Moon - Rise: 12:28, Set: 03:51. Civil Dark: 17:13 - 07:53. Nautical Dark: 17:55 - 07:11. Astro Dark: 18:35 - 06:31

Total Clouds (% Sky Obscured)

35
53
74
82
87
90
92
93
93
94
93
93
94
95
95
96
98
100
99
98
97
92
85
78

Low Clouds (% Sky Obscured)

35
53
74
81
87
90
92
93
93
94
93
91
90
90
90
93
97
100
99
97
95
88
81
74

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)

0
0
0
2
3
5
3
2
0
0
0
0
9
17
26
18
11
4
3
1
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
4
8
10
14
16
19
18
17
16
15
15
15
14
11
7
11
12
10

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

72
77
81
86
86
88
88
89
91
89
91
91
94
93
91
89
89
89
88
88
88
88
88
89

Pressure (mb)

1031
1031
1031
1030
1030
1029
1029
1029
1029
1029
1029
1029
1029
1029
1029
1029
1029
1029
1029
1029
1028
1028
1029
1029

Ozone (du)

280
281
283
284
284
283
283
285
287
288
291
294
297
298
298
299
297
296
295
289
282
276
275
274

Tuesday 30

Waxing Gibbous 82%

12:49

05:22

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: 08:32, Set: 16:35, Transit: 12:33. Moon - Rise: 12:49, Set: 05:22. Civil Dark: 17:14 - 07:53. Nautical Dark: 17:56 - 07:11. Astro Dark: 18:36 - 06:31

Total Clouds (% Sky Obscured)

83
88
94
95
96
97
97
97
98
98
99
100
100
100
100
100
99
98
99
99
100

Low Clouds (% Sky Obscured)

79
82
82
83
89
94
95
96
97
96
95
96
96
96
96
90
85
80
87
94
100

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
2
4
10
37
66
92
93
93
95
86
76
66

High Clouds (% Sky Obscured)

10
20
33
33
29
23
19
16
14
37
64
89
91
92
92
89
84
80
78
81
80

ISS Passover

Visibility (miles)

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

Fog (%)

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

Precipitation Probability (%)

15
16
17
18
16
12
11
10
6
12
13
12
12
12
12
13
13
11
20
22
22

Precipitation Amount (mm)

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
4
5
5
6
6
6
6
6
6
5
5
5
4
4
4
5
5
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

89
89
88
85
77
70
64
69
74
78
81
83
86
88
89
91
91
92
94
92
89

Pressure (mb)

1029
1029
1029
1029
1029
1028
1028
1028
1028
1027
1027
1027
1027
1026
1025
1025
1024
1023
1022
1022
1021

Ozone (du)

273
275
277
279
289
298
308
316
325
333
335
337
339
341
344
346
349
351
354
353
351

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

Generated: 24/12/25 10:53:04. Forecast: 24/12/25 to 30/12/25. Timezone: UTC+1.00