Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 25

Waxing Crescent 28%

11:27

22:11

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

Sun - Rise: 08:30, Set: 16:12, Transit: 12:21. Moon - Rise: 11:27, Set: 22:11. Civil Dark: 16:53 - 07:49. Nautical Dark: 17:37 - 07:05. Astro Dark: 18:19 - 06:23

Total Clouds (% Sky Obscured)

4
10
19
27
21
22
19
0
0
0
0
0
2
3
28
11
2
2
4
3
7
4
4
4

Low Clouds (% Sky Obscured)

4
10
19
27
21
22
19
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
2
3
28
11
2
2
4
3
7
4
4
4

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-22
-22
-23
-23
-23
-24
-24
-24
-23
-22
-22
-23
-22
-22
-22
-22
-22
-21
-21
-21
-21
-21
-21
-21

Relative Humidity (%)

28
27
26
25
24
22
21
20
20
21
22
23
23
24
25
27
28
28
29
29
29
29
30
31

Pressure (mb)

1036
1036
1036
1036
1036
1036
1035
1035
1034
1034
1034
1034
1034
1034
1034
1034
1034
1034
1034
1034
1034
1034
1033
1033

Ozone (du)

358
351
348
345
343
340
340
338
336
333
330
330
326
321
317
315
313
310
306
302
301
301
299
299

Friday 26

Waxing Crescent 38%

11:38

23:30

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

Sun - Rise: 08:30, Set: 16:13, Transit: 12:21. Moon - Rise: 11:38, Set: 23:30. Civil Dark: 16:54 - 07:49. Nautical Dark: 17:38 - 07:05. Astro Dark: 18:20 - 06:23

Total Clouds (% Sky Obscured)

8
15
15
25
13
17
34
21
15
5
1
0
0
0
1
0
0
0
15
37
49
55
56
65

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
11
30
39
43
41
51

Medium Clouds (% Sky Obscured)

2
3
15
3
3
3
16
10
5
2
1
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

8
15
15
25
13
17
29
12
7
3
0
0
0
0
0
0
0
0
0
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
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
7
7
7
6
7
7
6
5
5
4
5
5
4
3
3
2
2
2
2
2
3
2
3

Chance of Frost

Temperature (°C)

-7
-7
-7
-6
-6
-4
-3
-2
-1
-1
-2
-2
-3
-3
-3
-3
-3
-3
-3
-3
-3
-3
-3
-2

Feels Like (°C)

-10
-11
-12
-11
-11
-9
-7
-5
-4
-4
-4
-5
-5
-5
-5
-4
-4
-4
-4
-4
-4
-4
-3
-3

Dew Point (°C)

-21
-22
-23
-23
-24
-24
-23
-23
-21
-21
-21
-21
-21
-21
-20
-18
-17
-15
-13
-11
-10
-8
-7
-7

Relative Humidity (%)

29
28
26
24
22
20
18
18
19
20
21
22
22
24
26
29
33
38
45
51
58
64
69
71

Pressure (mb)

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

Ozone (du)

297
297
297
296
294
295
294
294
293
291
291
290
291
291
291
290
289
287
287
287
285
285
284
285

Saturday 27

First Quarter 49%

11:48

00:52

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 OK
23 OK
00 OK
01 OK
02 OK
03 OK
04 Bad
05 Bad

Sun - Rise: 08:30, Set: 16:13, Transit: 12:22. Moon - Rise: 11:48, Set: 00:52. Civil Dark: 16:55 - 07:49. Nautical Dark: 17:39 - 07:05. Astro Dark: 18:20 - 06:24

Total Clouds (% Sky Obscured)

85
95
91
90
90
84
98
68
93
84
81
89
84
59
79
73
40
20
23
30
38
42
55
65

Low Clouds (% Sky Obscured)

67
81
76
71
70
71
92
68
93
84
70
56
60
48
65
59
35
19
23
30
28
28
51
61

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
3
1
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
1
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
5
4
5
6
7
8
9
11
9
9
8
6
5
4
4
3
3
2
2
2
3
2
2

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

75
79
83
86
87
89
91
96
89
91
86
89
91
93
94
94
94
93
89
86
78
70
63
62

Pressure (mb)

1033
1034
1034
1034
1033
1033
1032
1031
1031
1030
1030
1030
1030
1030
1031
1031
1032
1032
1033
1033
1034
1034
1034
1034

Ozone (du)

284
284
283
283
284
285
285
284
285
288
290
289
288
286
287
292
288
290
289
290
289
289
291
295

Sunday 28

Waxing Gibbous 61%

11:59

02:17

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

Sun - Rise: 08:31, Set: 16:14, Transit: 12:22. Moon - Rise: 11:59, Set: 02:17. Civil Dark: 16:55 - 07:49. Nautical Dark: 17:40 - 07:05. Astro Dark: 18:21 - 06:24

Total Clouds (% Sky Obscured)

75
80
80
75
75
76
75
53
32
9
7
5
1
23
47
72
77
83
90
93
97
100
100
99

Low Clouds (% Sky Obscured)

65
70
75
75
69
64
63
48
28
8
6
3
0
23
47
72
77
80
85
90
96
100
100
99

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
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
5
4
3
0
2

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
2
3
4
5
6

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
1
2
3
3
3
4
5
6
7
7
8
9
11
11
12
12
12
12
12
12
12
12

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-8
-8
-8
-8
-9
-9
-9
-9
-9
-8
-8
-8
-8
-8
-7
-5
-3
-2
-1
-1
0
1
1
1

Relative Humidity (%)

62
63
63
63
58
55
53
52
53
55
56
56
57
58
67
77
86
91
94
94
96
96
98
96

Pressure (mb)

1034
1034
1034
1035
1035
1034
1034
1033
1032
1032
1031
1031
1030
1030
1029
1029
1028
1028
1027
1026
1026
1026
1025
1025

Ozone (du)

295
291
289
289
288
287
282
280
280
281
280
279
278
277
277
277
276
276
276
276
276
276
277
277

Monday 29

Waxing Gibbous 72%

12:13

03:47

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 OK
20 OK
21 OK
22 OK
23 OK
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad

Sun - Rise: 08:31, Set: 16:15, Transit: 12:23. Moon - Rise: 12:13, Set: 03:47. Civil Dark: 16:56 - 07:50. Nautical Dark: 17:40 - 07:06. Astro Dark: 18:22 - 06:24

Total Clouds (% Sky Obscured)

99
90
81
74
82
91
100
99
97
96
84
76
68
40
27
15
27
36
45
58
70
81
72
59

Low Clouds (% Sky Obscured)

99
90
81
74
82
91
100
99
97
96
61
55
54
34
24
14
17
20
22
39
56
73
66
57

Medium Clouds (% Sky Obscured)

0
0
0
0
8
15
20
15
7
0
0
0
0
0
0
0
1
2
4
2
1
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
0
1
0
1
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 (%)

10
7
12
22
27
26
24
14
15
17
21
9
5
2
2
0
5
8
10
12
13
12
10
9

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)

12
12
12
12
12
12
12
13
13
13
14
14
13
14
13
13
13
13
12
12
12
11
11
10

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

94
93
93
91
86
86
85
85
80
75
73
80
80
77
76
74
72
73
74
76
76
74
76
77

Pressure (mb)

1024
1024
1023
1023
1023
1023
1023
1022
1022
1021
1021
1021
1021
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022

Ozone (du)

277
278
280
281
282
283
284
284
283
287
288
290
289
289
287
284
282
283
283
283
286
288
291
295

Tuesday 30

Waxing Gibbous 82%

12:31

05:21

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
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad

Sun - Rise: 08:31, Set: 16:16, Transit: 12:23. Moon - Rise: 12:31, Set: 05:21. Civil Dark: 16:57 - 07:50. Nautical Dark: 17:41 - 07:06. Astro Dark: 18:23 - 06:24

Total Clouds (% Sky Obscured)

49
44
41
37
58
67
64
84
95
100
100
100
100
98
91
79
57
29
30
49
75
97
91
88

Low Clouds (% Sky Obscured)

48
42
36
30
45
58
64
79
89
95
100
100
100
96
91
79
57
29
30
49
75
78
83
88

Medium Clouds (% Sky Obscured)

0
0
0
0
1
3
5
4
3
2
3
3
3
14
24
25
15
7
0
23
47
70
52
33

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
32
63
95
63
32

ISS Passover

Visibility (miles)

9
9
6
3
0
0
0
0
0
0
0
0
0
0
3
6
9
8
6
5
6
8
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
Snow
Snow
Snow
None
None
None
None
Snow
Snow
Snow
None
None
None

Precipitation Probability (%)

3
8
8
5
21
28
35
36
38
39
42
45
47
43
37
21
39
48
60
51
38
17
15
12

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0.1
0.2
0.1
0
0
0
0
0.4
0.2
0.1
0
0
0

Wind Speed/Direction (mph)

9
8
8
8
9
10
11
13
12
11
10
10
11
12
12
14
15
12
10
8
8
8
8
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

80
83
88
92
96
94
91
89
91
94
98
96
96
96
91
86
83
83
83
83
80
77
74
73

Pressure (mb)

1022
1022
1022
1023
1023
1023
1023
1023
1023
1022
1022
1022
1022
1022
1021
1021
1020
1021
1021
1021
1021
1021
1021
1021

Ozone (du)

299
303
310
318
325
332
338
344
346
347
348
346
344
341
341
340
340
340
340
340
340
340
340
341

Wednesday 31

Waxing Gibbous 91%

12:57

No Set

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: 08:30, Set: 16:17, Transit: 12:24. Moon - Rise: 12:57, Set: No Set. Civil Dark: 16:58 - 07:50. Nautical Dark: 17:42 - 07:06. Astro Dark: 18:24 - 06:24

Total Clouds (% Sky Obscured)

84
86
88
91
93
96
97
98
99
100
100
100
100
99
99
98
99
99
100

Low Clouds (% Sky Obscured)

84
86
81
76
80
84
90
93
97
100
95
91
87
83
80
76
79
80
82

Medium Clouds (% Sky Obscured)

15
30
42
61
67
69
70
64
58
56
68
82
100
99
97
95
97
98
100

High Clouds (% Sky Obscured)

0
29
61
91
74
57
39
26
14
5
37
69
99
90
76
56
59
74
90

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
8
9
9
9
7
5
3
3
4
5
6
8

Fog (%)

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
Snow
Snow
Snow
Snow
Snow
Snow
Snow
None
None
None
Sleet
Sleet
Very Light Rain
None

Precipitation Probability (%)

8
10
12
13
31
38
43
43
45
48
44
41
38
44
50
55
59
57
52

Precipitation Amount (mm)

0
0
0
0
0
0.1
0.1
0.1
0.2
0.2
0.1
0.1
0
0
0
0.2
0.3
0.2
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

73
71
74
75
77
74
71
68
69
70
70
76
83
88
86
86
83
83
84

Pressure (mb)

1021
1021
1021
1021
1021
1020
1020
1020
1019
1019
1018
1018
1017
1017
1016
1015
1014
1013
1012

Ozone (du)

342
344
341
339
337
338
339
340
342
345
347
354
361
368
382
396
410
410
410

Forecast for Calenberger Neustadt, Germany (52.38,9.73)

Generated: 25/12/25 05:07:11. Forecast: 25/12/25 to 31/12/25. Timezone: UTC+1.00