Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 21

Waxing Crescent 0%

09:55

15:35

12 Bad
13 Bad
14 Bad
15 Bad
16 OK
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

Sun - Rise: 08:14, Set: 15:54, Transit: 12:04. Moon - Rise: 09:55, Set: 15:35. Civil Dark: 16:35 - 07:33. Nautical Dark: 17:19 - 06:49. Astro Dark: 18:01 - 06:07

Total Clouds (% Sky Obscured)

100
100
100
63
20
53
88
100
100
88
100
100
99
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

54
44
41
43
56
81
92
93
95
93
91
89
91
90
97
99
100
100
100
100
100
100
100
99

Medium Clouds (% Sky Obscured)

82
84
73
59
52
80
64
89
91
93
83
68
90
84
80
95
98
100
98
97
89
75
48
41

High Clouds (% Sky Obscured)

44
20
33
73
97
91
73
87
76
100
100
92
69
72
67
90
98
92
86
91
93
39
52
59

ISS Passover

Visibility (miles)

-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
9
9

Fog (%)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

7
8
7
7
7
3
3
2
3
3
4
4
3
3
3
3
3
4
3
3
3
3
3
3

Dew Point (°C)

6
6
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5

Relative Humidity (%)

84
78
80
84
91
100
100
100
99
100
92
93
93
93
91
92
90
90
91
91
92
92
93
91

Pressure (mb)

1020
1020
1020
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1018
1019
1018
1019
1019
1019

Ozone (du)

276
273
266
261
256
258
260
260
262
262
262
262
262
261
258
256
255
256
257
258
257
257
257
258

Monday 22

Waxing Crescent 2%

10:24

16:42

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
10 Bad
11 Bad

Sun - Rise: 08:15, Set: 15:54, Transit: 12:04. Moon - Rise: 10:24, Set: 16:42. Civil Dark: 16:36 - 07:33. Nautical Dark: 17:20 - 06:49. Astro Dark: 18:02 - 06:07

Total Clouds (% Sky Obscured)

100
100
97
91
97
98
98
97
94
96
98
100
100
100
100
100
100
100
100
100
100
96
84
91

Low Clouds (% Sky Obscured)

100
100
97
91
97
98
98
97
94
96
98
100
100
100
100
100
100
100
100
95
95
90
84
90

Medium Clouds (% Sky Obscured)

33
24
22
16
8
5
14
20
21
15
4
3
2
3
1
2
2
3
2
4
2
2
0
0

High Clouds (% Sky Obscured)

21
41
45
44
65
78
90
75
65
75
80
83
100
83
84
99
61
58
55
54
55
44
30
38

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
8
8
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
10
10
10
10
10

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

91
90
88
90
91
91
91
91
90
90
88
86
86
85
85
83
83
83
83
83
82
79
76
72

Pressure (mb)

1019
1018
1018
1018
1018
1018
1018
1018
1018
1019
1019
1019
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1019
1019

Ozone (du)

261
260
261
263
263
264
264
264
265
265
264
265
267
266
264
261
263
265
265
267
275
284
288
293

Tuesday 23

Waxing Crescent 6%

10:44

17:57

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 OK
07 Bad
08 Bad
09 Bad
10 OK
11 OK

Sun - Rise: 08:15, Set: 15:55, Transit: 12:05. Moon - Rise: 10:44, Set: 17:57. Civil Dark: 16:36 - 07:34. Nautical Dark: 17:21 - 06:50. Astro Dark: 18:02 - 06:08

Total Clouds (% Sky Obscured)

80
68
62
57
57
58
57
57
78
74
67
73
78
77
69
57
51
51
47
54
53
50
40
40

Low Clouds (% Sky Obscured)

80
68
62
57
57
58
57
57
78
74
67
73
78
77
69
57
51
51
47
54
53
50
40
40

Medium Clouds (% Sky Obscured)

0
0
1
2
2
1
2
2
2
1
0
1
2
1
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

27
14
5
2
2
3
2
2
2
3
2
2
2
3
3
0
3
3
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
3
0
0
0
0
0
0
4
1
0
0
0
0
4
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
10
9
10
10
10
10
9
9
9
9
9
9
9
9
10
10
10
11
11
11
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

68
64
64
63
66
65
68
69
70
72
74
76
79
80
81
83
83
81
83
81
81
80
75
71

Pressure (mb)

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

Ozone (du)

295
294
299
304
306
311
315
317
321
325
329
332
333
336
339
342
342
342
342
341
343
345
346
346

Wednesday 24

Waxing Crescent 12%

11:00

19:16

12 Bad
13 OK
14 Bad
15 Bad
16 OK
17 OK
18 OK
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

Sun - Rise: 08:16, Set: 15:55, Transit: 12:05. Moon - Rise: 11:00, Set: 19:16. Civil Dark: 16:37 - 07:34. Nautical Dark: 17:21 - 06:50. Astro Dark: 18:03 - 06:08

Total Clouds (% Sky Obscured)

61
41
53
55
41
30
32
64
61
80
84
70
83
85
93
85
100
92
46
48
53
55
61
64

Low Clouds (% Sky Obscured)

61
41
53
55
41
30
32
64
50
76
76
51
72
77
91
78
100
92
46
48
53
55
61
64

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
1
0
2
1
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
12
12
12
12
11
11
11
12
12
12
12
12
12
12
12
11
11
11
11
11
11
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

68
66
68
70
74
78
83
86
88
84
78
74
70
67
62
59
56
62
75
77
74
72
66
61

Pressure (mb)

1024
1024
1024
1025
1025
1026
1026
1027
1028
1028
1029
1029
1029
1030
1030
1030
1030
1031
1031
1032
1032
1033
1034
1034

Ozone (du)

348
353
355
358
363
366
368
368
369
379
386
385
387
384
383
384
385
390
390
392
391
390
392
389

Thursday 25

Waxing Crescent 19%

11:12

20:36

12 Bad
13 Bad
14 Bad
15 OK
16 OK
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
10 Good
11 Good

Sun - Rise: 08:16, Set: 15:56, Transit: 12:06. Moon - Rise: 11:12, Set: 20:36. Civil Dark: 16:37 - 07:35. Nautical Dark: 17:22 - 06:50. Astro Dark: 18:03 - 06:09

Total Clouds (% Sky Obscured)

63
58
49
39
24
13
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Low Clouds (% Sky Obscured)

63
58
49
39
24
13
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
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
11
11
11
11
11
10
11
11
11
10
10
10
10
10
11
11
10
10
11
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-10
-11
-12
-14
-15
-17
-17
-18
-18
-18
-19
-19
-19
-19
-20
-20
-20
-20
-20
-20
-19
-19
-19
-18

Relative Humidity (%)

55
50
46
41
38
35
34
33
33
32
32
32
32
32
31
32
31
32
32
32
33
33
32
32

Pressure (mb)

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

Ozone (du)

385
386
388
386
382
382
382
380
378
378
377
376
372
366
360
359
358
357
354
352
347
344
344
346

Friday 26

Waxing Crescent 28%

11:23

21:55

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 OK
05 OK
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad

Sun - Rise: 08:16, Set: 15:57, Transit: 12:06. Moon - Rise: 11:23, Set: 21:55. Civil Dark: 16:38 - 07:35. Nautical Dark: 17:22 - 06:51. Astro Dark: 18:04 - 06:09

Total Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
1
1
3
5
7
26
46
69
70
71
72
66
62

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
5
11
12
15
15
27
27
27

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
1
1
3
5
7
7
6
3
18
33
50
34
19

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
10
10
10
11
10
10
9
8
9
8
8
7
7
8
8
7
7
7
7
7
7
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-17
-16
-15
-15
-15
-16
-15
-15
-14
-14
-13
-13
-13
-13
-12
-12
-12
-12
-11
-11
-11
-10
-10
-9

Relative Humidity (%)

33
34
36
39
39
38
40
43
44
46
48
48
50
52
53
54
55
58
59
60
60
60
59
59

Pressure (mb)

1036
1036
1035
1035
1035
1035
1035
1035
1035
1035
1036
1036
1035
1035
1035
1035
1035
1035
1035
1035
1035
1035
1035
1035

Ozone (du)

345
343
333
328
330
330
333
336
333
327
321
316
316
317
317
316
316
315
315
314
312
309
307
306

Saturday 27

First Quarter 38%

11:33

23:15

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

Sun - Rise: 08:16, Set: 15:58, Transit: 12:07. Moon - Rise: 11:33, Set: 23:15. Civil Dark: 16:39 - 07:35. Nautical Dark: 17:23 - 06:51. Astro Dark: 18:05 - 06:09

Total Clouds (% Sky Obscured)

61
51
43
34
36
37
39
33
31
32
52
74
93
94
94
95
95
96
98
98
99
100
100
100

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
14
25
29
26
22
23
14
10
5
5
15
30
30
35

Medium Clouds (% Sky Obscured)

27
20
11
7
15
22
30
21
10
4
4
4
4
5
6
7
15
21
29
48
66
80
47
32

High Clouds (% Sky Obscured)

5
11
14
20
16
15
16
15
13
15
22
26
35
35
30
30
25
20
10
5
5
5
5
5

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

60
59
60
63
64
66
67
68
67
67
67
67
66
66
66
65
66
64
64
64
64
64
63
63

Pressure (mb)

1035
1034
1034
1034
1034
1034
1034
1034
1034
1034
1034
1034
1034
1034
1034
1034
1033
1033
1033
1033
1033
1033
1033
1033

Ozone (du)

306
306
306
306
306
307
309
310
310
310
311
311
311
311
312
312
312
313
313
313
316
318
320
324

Forecast for Tempelhof, Germany (52.47,13.39)

Generated: 21/12/25 10:21:14. Forecast: 21/12/25 to 27/12/25. Timezone: UTC+1.00