Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 23

Waxing Crescent 12%

10:44

19:16

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

Sun - Rise: 08:15, Set: 15:55, Transit: 12:05. Moon - Rise: 10:44, 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)

100
100
100
100
74
70
64
58
55
51
17
33
31
23
21
6
53
12
9
30
37
48
80
82

Low Clouds (% Sky Obscured)

100
100
100
100
74
70
64
58
55
51
17
33
31
23
21
6
6
0
4
30
37
48
75
68

Medium Clouds (% Sky Obscured)

0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
50
3
0
0
0
0
0
0

High Clouds (% Sky Obscured)

1
0
2
3
0
0
0
0
0
0
0
0
0
0
0
0
2
3
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
4
5
3
3
1
1
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
11
11
11
11
11
11
12
12
12
11
10
10
10
9
9
10
10
12

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

84
84
84
83
83
83
83
81
81
77
74
70
70
69
70
73
74
74
73
75
78
86
89
84

Pressure (mb)

1021
1021
1021
1021
1021
1021
1022
1023
1024
1024
1025
1025
1025
1025
1026
1026
1026
1027
1028
1028
1029
1029
1030
1030

Ozone (du)

352
351
349
346
341
342
345
348
350
355
360
367
372
370
372
375
378
388
396
401
397
394
393
393

Wednesday 24

Waxing Crescent 19%

11:00

20:36

01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 OK
07 OK
08 Bad
09 Bad
10 OK
11 OK
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

Sun - Rise: 08:16, Set: 15:56, Transit: 12:06. Moon - Rise: 11:00, Set: 20:36. Civil Dark: 16:37 - 07:34. Nautical Dark: 17:22 - 06:50. Astro Dark: 18:03 - 06:08

Total Clouds (% Sky Obscured)

75
71
75
70
63
28
40
57
48
38
28
12
0
0
0
0
0
0
0
0
0
0
0
0

Low Clouds (% Sky Obscured)

56
53
55
46
35
28
40
57
48
38
28
12
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
11
12
12
12
12
11
12
12
12
12
11
11
11
11
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-4
-5
-7
-8
-7
-6
-6
-8
-8
-10
-12
-14
-16
-17
-18
-18
-18
-18
-19
-19
-20
-20
-20
-20

Relative Humidity (%)

78
71
65
61
64
74
74
71
69
61
53
44
38
32
31
33
33
34
33
32
31
31
30
31

Pressure (mb)

1030
1031
1031
1031
1032
1032
1033
1033
1034
1035
1035
1035
1035
1035
1035
1035
1036
1036
1036
1037
1037
1037
1037
1037

Ozone (du)

386
383
386
387
388
385
379
379
381
379
376
377
372
366
361
358
359
361
363
364
362
360
357
355

Thursday 25

Waxing Crescent 28%

11:12

21:55

01 Good
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 Good
20 Good
21 Good
22 Good
23 OK
00 OK

Sun - Rise: 08:16, Set: 15:57, Transit: 12:06. Moon - Rise: 11:12, Set: 21:55. Civil Dark: 16:38 - 07:35. Nautical Dark: 17:22 - 06:50. Astro Dark: 18:04 - 06:09

Total Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
2
2
2
2
3
13
23
39

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
1
1
1
1
1
2
13
23
39

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-21
-21
-21
-21
-21
-21
-22
-22
-22
-22
-23
-23
-22
-22
-21
-21
-21
-21
-21
-21
-21
-21
-21
-21

Relative Humidity (%)

30
30
30
31
31
30
30
30
29
27
25
24
24
24
24
26
28
28
29
30
29
29
30
30

Pressure (mb)

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

Ozone (du)

357
357
358
354
353
353
353
350
344
340
332
327
328
328
327
326
321
312
308
304
300
300
300
299

Friday 26

Waxing Crescent 38%

11:23

23:15

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

Sun - Rise: 08:16, Set: 15:58, Transit: 12:07. Moon - Rise: 11:23, 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)

26
17
8
13
34
43
60
70
83
73
46
29
19
12
2
19
41
59
67
63
77
81
84
88

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
17
37
51
63
63
77
77
84
83

Medium Clouds (% Sky Obscured)

0
0
0
3
6
11
23
64
83
65
30
22
13
8
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

24
15
8
8
34
43
45
34
36
21
4
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)

4
4
4
3
3
3
3
3
3
3
3
3
3
4
4
4
4
4
4
4
4
4
4
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-9
-8
-8
-8
-8
-10
-10
-9
-9
-8
-7
-5
-3
-3
-4
-4
-4
-5
-5
-5
-3
-3
-3
-3

Dew Point (°C)

-21
-21
-21
-21
-22
-22
-23
-23
-24
-23
-22
-22
-20
-19
-17
-15
-12
-9
-7
-5
-3
-3
-2
-2

Relative Humidity (%)

30
30
30
28
27
25
23
22
21
20
20
20
21
24
28
35
46
56
67
75
87
91
96
96

Pressure (mb)

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

Ozone (du)

298
299
296
295
294
294
294
291
289
288
288
287
286
284
284
286
288
290
290
288
286
284
281
281

Saturday 27

First Quarter 49%

11:33

00:37

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
00 Bad

Sun - Rise: 08:16, Set: 15:58, Transit: 12:07. Moon - Rise: 11:33, Set: 00:37. Civil Dark: 16:40 - 07:35. Nautical Dark: 17:24 - 06:51. Astro Dark: 18:05 - 06:09

Total Clouds (% Sky Obscured)

94
95
100
100
100
100
100
100
100
90
85
80
80
76
72
81
92
100
98
96
93
84
70
57

Low Clouds (% Sky Obscured)

89
81
77
74
75
70
70
72
75
85
85
80
80
76
72
81
92
97
92
89
85
80
70
57

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
0
1
0
0
0
0
0
1
10
15
14
8
8
3
2
2
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
8
11
11
8
4
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-1
-1
-1
0
1
0
0
-0
-2
-4
-5
-6
-6

Relative Humidity (%)

96
96
94
96
96
96
96
96
94
87
83
83
81
84
88
91
91
91
89
81
74
66
65
63

Pressure (mb)

1033
1033
1033
1033
1032
1032
1032
1032
1032
1031
1030
1029
1028
1027
1027
1026
1026
1027
1027
1027
1027
1028
1028
1028

Ozone (du)

281
281
280
277
276
274
275
275
277
278
282
286
287
289
290
292
295
298
301
306
311
317
316
315

Sunday 28

Waxing Gibbous 61%

11:44

No Set

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

Sun - Rise: 08:16, Set: 15:59, Transit: 12:08. Moon - Rise: 11:44, Set: No Set. Civil Dark: 16:40 - 07:35. Nautical Dark: 17:25 - 06:51. Astro Dark: 18:06 - 06:09

Total Clouds (% Sky Obscured)

55
50
49
50
51
52
44
33
23
17
11
4
5
4
3
1
0
0
20
40
57
63
64
63

Low Clouds (% Sky Obscured)

55
50
49
50
47
52
43
30
15
16
10
3
4
4
3
1
0
0
4
8
19
23
30
34

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
1
8
16
23
15
8
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 (%)

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

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)

8
7
7
7
7
7
8
9
9
9
9
9
9
8
7
7
7
7
7
7
8
8
8
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

61
62
62
61
62
63
65
63
62
61
60
59
58
60
64
66
66
68
70
71
74
75
78
83

Pressure (mb)

1029
1028
1028
1028
1029
1029
1029
1030
1030
1030
1030
1030
1030
1030
1029
1029
1029
1028
1028
1027
1027
1026
1026
1025

Ozone (du)

314
315
316
316
315
313
311
310
308
306
305
303
302
302
302
302
301
300
299
299
299
299
298
297

Monday 29

Waxing Gibbous 72%

11:58

02:02

Sun - Rise: 08:16, Set: 16:00, Transit: 12:08. Moon - Rise: 11:58, Set: 02:02. Civil Dark: 16:41 - 07:35. Nautical Dark: 17:25 - 06:51. Astro Dark: 18:07 - 06:09

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 Tempelhof, Germany (52.47,13.39)

Generated: 23/12/25 01:38:00. Forecast: 23/12/25 to 29/12/25. Timezone: UTC+1.00