Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 21

Waxing Crescent 31%

10:06

01:49

01 Bad
02 Bad
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 OK
19 Good
20 Good
21 Good
22 Good
23 OK
00 Good

Sun - Rise: 05:38, Set: 21:24, Transit: 13:31. Moon - Rise: 10:06, Set: 01:49. Civil Dark: 22:06 - 04:56. Nautical Dark: 23:03 - 03:59. Astro Dark: 00:32 - 02:30

Total Clouds (% Sky Obscured)

96
96
99
40
37
40
38
62
74
50
94
100
96
50
100
100
65
41
15
10
5
0
13
3

Low Clouds (% Sky Obscured)

44
23
32
28
23
13
12
25
25
23
28
32
40
35
32
36
23
23
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

63
0
0
0
0
0
6
25
22
0
0
0
57
4
14
6
21
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

66
96
32
23
20
27
21
30
51
30
86
100
88
25
100
100
43
25
15
10
5
0
13
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)

7
7
7
6
5
6
6
7
8
8
8
7
7
8
8
8
7
6
5
3
3
3
3
3

Chance of Frost

Temperature (°C)

11
11
10
8
8
8
9
11
12
14
15
16
16
17
18
18
18
18
17
16
14
12
11
10

Feels Like (°C)

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

Dew Point (°C)

11
10
9
8
8
7
8
9
8
7
6
6
6
6
8
9
9
10
12
12
12
11
9
9

Relative Humidity (%)

98
98
98
96
98
98
96
88
75
62
54
50
48
49
51
53
57
62
70
79
87
92
91
90

Pressure (mb)

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

Ozone (du)

341
340
338
335
333
333
332
330
329
330
330
328
328
329
328
328
328
328
328
328
327
327
326
326

Friday 22

Waxing Crescent 42%

11:32

02:15

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

Sun - Rise: 05:37, Set: 21:25, Transit: 13:31. Moon - Rise: 11:32, Set: 02:15. Civil Dark: 22:07 - 04:55. Nautical Dark: 23:05 - 03:57. Astro Dark: 00:37 - 02:25

Total Clouds (% Sky Obscured)

0
0
0
9
15
6
2
1
5
12
33
39
46
43
35
44
53
56
49
25
0
0
0
0

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
7
27
37
42
39
35
44
53
56
49
25
0
0
0
0

Medium Clouds (% Sky Obscured)

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

High Clouds (% Sky Obscured)

0
0
0
9
15
6
2
1
5
12
16
7
20
20
6
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)

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

Chance of Frost

Temperature (°C)

10
10
9
9
9
9
10
14
16
17
19
19
20
21
21
22
21
21
20
20
18
16
15
14

Feels Like (°C)

10
9
8
8
8
8
10
14
17
18
18
19
21
20
21
22
24
23
22
22
20
18
16
16

Dew Point (°C)

9
8
8
7
7
7
8
9
10
10
10
9
9
10
10
10
11
11
13
15
15
13
12
12

Relative Humidity (%)

91
90
88
88
90
88
85
75
67
62
55
51
49
48
47
47
50
53
62
75
81
86
86
84

Pressure (mb)

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

Ozone (du)

327
326
324
322
320
321
321
321
323
324
325
326
328
329
331
330
329
329
330
330
329
329
331
332

Saturday 23

First Quarter 53%

12:54

02:34

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

Sun - Rise: 05:35, Set: 21:27, Transit: 13:31. Moon - Rise: 12:54, Set: 02:34. Civil Dark: 22:09 - 04:54. Nautical Dark: 23:07 - 03:55. Astro Dark: 00:43 - 02:19

Total Clouds (% Sky Obscured)

0
0
0
0
0
0
0
7
13
16
47
36
12
64
100
100
13
14
27
17
12
0
0
0

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
5
0
0
12
5
7
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
9
9
0
0
0
0
0
0
0
0
17
12
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
4
9
1
22
25
12
64
98
100
13
14
27
12
12
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
3
3
3
3
4
4
2
2
3
3
3
4
6
9
9
8
6
5
3
2
1
1
2

Chance of Frost

Temperature (°C)

14
14
13
12
12
12
13
16
19
20
21
22
23
24
24
24
24
24
24
23
21
19
17
16

Feels Like (°C)

15
14
14
13
13
13
14
19
21
22
23
23
24
24
23
23
23
24
24
24
22
19
20
18

Dew Point (°C)

10
10
9
8
8
8
9
11
12
11
10
10
11
12
13
14
15
16
18
19
17
15
13
12

Relative Humidity (%)

79
76
76
76
77
76
76
71
64
57
51
47
46
48
51
53
55
59
69
78
79
80
79
78

Pressure (mb)

1028
1028
1028
1028
1028
1028
1029
1029
1029
1029
1029
1029
1029
1028
1028
1028
1028
1028
1028
1028
1029
1029
1030
1030

Ozone (du)

333
333
333
334
335
334
335
334
335
337
336
335
336
335
334
334
339
342
342
343
343
342
339
338

Sunday 24

Waxing Gibbous 64%

14:11

02:48

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

Sun - Rise: 05:34, Set: 21:28, Transit: 13:31. Moon - Rise: 14:11, Set: 02:48. Civil Dark: 22:10 - 04:52. Nautical Dark: 23:09 - 03:54. Astro Dark: 00:49 - 02:13

Total Clouds (% Sky Obscured)

0
4
7
12
11
4
1
12
23
34
42
51
57
54
50
44
32
20
9
6
3
0
0
0

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
12
23
34
40
45
50
51
50
44
32
20
9
6
3
0
0
0

Medium Clouds (% Sky Obscured)

0
0
3
7
6
4
1
1
0
0
4
7
13
9
4
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

0
2
6
12
11
4
1
2
4
6
6
7
8
6
5
3
2
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
5
12
31
22
23
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)

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

Chance of Frost

Temperature (°C)

15
15
14
14
13
14
16
18
19
21
22
23
23
24
24
24
24
23
22
20
18
16
15
15

Feels Like (°C)

17
17
16
15
15
14
18
20
22
23
24
24
25
24
25
24
24
24
23
22
20
18
17
17

Dew Point (°C)

12
12
11
11
11
12
13
13
13
12
13
12
13
13
14
14
15
16
16
17
16
15
15
14

Relative Humidity (%)

79
83
82
82
83
83
82
73
67
59
54
51
51
51
52
54
57
63
69
80
90
95
96
96

Pressure (mb)

1030
1030
1030
1030
1030
1030
1030
1030
1031
1031
1031
1030
1030
1030
1030
1030
1030
1030
1030
1030
1031
1031
1031
1032

Ozone (du)

336
338
335
332
328
326
324
322
321
320
319
318
317
318
317
316
314
313
312
311
311
310
311
311

Monday 25

Waxing Gibbous 74%

15:25

03:01

01 Good
02 Good
03 OK
04 OK
05 OK
06 OK
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 Good
00 Good

Sun - Rise: 05:33, Set: 21:29, Transit: 13:31. Moon - Rise: 15:25, Set: 03:01. Civil Dark: 22:12 - 04:51. Nautical Dark: 23:11 - 03:52. Astro Dark: 00:56 - 02:07

Total Clouds (% Sky Obscured)

1
10
18
25
20
14
10
7
3
3
6
5
9
10
12
12
8
6
4
3
1
0
0
0

Low Clouds (% Sky Obscured)

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

1
10
18
25
20
14
10
6
3
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
2
2
1
6
9
10
9
7
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)

5
5
5
4
3
3
3
4
5
5
5
5
5
5
5
6
7
7
6
6
5
5
4
4

Chance of Frost

Temperature (°C)

14
14
13
13
13
13
15
16
18
20
21
22
23
24
24
24
24
23
21
20
19
17
15
15

Feels Like (°C)

16
15
15
14
14
15
17
19
20
22
23
24
25
26
25
25
25
26
25
26
20
20
20
19

Dew Point (°C)

14
13
13
13
13
13
14
15
15
15
15
14
14
13
13
14
14
15
15
15
14
13
12
12

Relative Humidity (%)

96
98
98
96
98
96
95
90
82
72
67
60
55
51
52
53
54
60
65
72
75
78
80
83

Pressure (mb)

1031
1031
1031
1031
1031
1031
1031
1031
1031
1031
1031
1031
1031
1031
1030
1030
1030
1030
1030
1030
1030
1031
1031
1031

Ozone (du)

310
308
307
307
308
308
309
310
311
311
311
312
311
310
309
309
308
308
309
309
310
311
312
313

Tuesday 26

Waxing Gibbous 82%

16:38

03:13

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 Good
00 Good

Sun - Rise: 05:32, Set: 21:30, Transit: 13:31. Moon - Rise: 16:38, Set: 03:13. Civil Dark: 22:13 - 04:50. Nautical Dark: 23:13 - 03:50. Astro Dark: N/A - 01:59

Total Clouds (% Sky Obscured)

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

Low Clouds (% Sky Obscured)

0
1
2
2
1
1
0
0
0
0
0
0
1
2
3
4
3
1
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
1
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
1
3
3
1
1
1
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
2
2
2
2
2
2
3
4
5
5
6
6
7
7
8
7
7
6
5
5
4
4

Chance of Frost

Temperature (°C)

15
14
14
14
14
15
16
17
19
20
22
23
23
24
24
24
24
23
22
21
19
18
17
16

Feels Like (°C)

19
18
16
16
16
16
16
16
22
22
22
23
23
24
27
26
26
25
26
26
21
21
22
20

Dew Point (°C)

13
13
12
13
12
13
13
14
14
14
14
14
14
14
14
14
13
14
15
16
15
15
15
15

Relative Humidity (%)

87
92
90
90
90
86
82
79
72
66
61
58
56
52
52
51
51
57
63
70
76
83
90
92

Pressure (mb)

1031
1031
1030
1030
1030
1030
1030
1030
1030
1030
1030
1029
1029
1029
1028
1028
1028
1028
1028
1027
1028
1028
1028
1028

Ozone (du)

313
313
315
317
318
318
318
317
317
316
316
314
313
312
313
313
314
314
314
314
313
312
310
310

Wednesday 27

Waxing Gibbous 89%

17:50

03:26

Sun - Rise: 05:31, Set: 21:32, Transit: 13:32. Moon - Rise: 17:50, Set: 03:26. Civil Dark: 22:14 - 04:49. Nautical Dark: 23:15 - 03:48. Astro Dark: 01:04 - 01:48

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 Alzen, Cologne District, Germany (50.50,6.30)

Generated: 21/05/26 01:24:15. Forecast: 21/05/26 to 27/05/26. Timezone: UTC+2.00