Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 30

Waxing Gibbous 99%

19:59

05:27

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

Sun - Rise: 06:02, Set: 20:53, Transit: 13:29. Moon - Rise: 19:59, Set: 05:27. Civil Dark: 21:31 - 05:24. Nautical Dark: 22:20 - 04:35. Astro Dark: 23:20 - 03:34

Total Clouds (% Sky Obscured)

50
39
31
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
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
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
2
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)

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

Chance of Frost

Temperature (°C)

15
16
17
18
18
18
17
16
14
13
12
11
11
11
10
10
10
10
10
11
13
15
17
18

Feels Like (°C)

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

Dew Point (°C)

-9
-8
-6
-4
-3
-2
1
2
2
3
3
3
3
3
2
2
1
1
1
1
1
1
1
2

Relative Humidity (%)

18
18
19
21
23
27
32
38
45
51
53
56
58
58
58
57
55
55
55
50
43
39
35
33

Pressure (mb)

1028
1027
1027
1026
1026
1026
1026
1026
1027
1027
1027
1027
1028
1028
1028
1027
1027
1027
1027
1028
1028
1027
1027
1027

Ozone (du)

381
381
383
383
382
381
380
380
380
380
381
381
380
379
378
378
378
378
378
378
378
377
377
378

Friday 1

Full Moon 100%

21:14

05:44

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

Sun - Rise: 06:01, Set: 20:54, Transit: 13:28. Moon - Rise: 21:14, Set: 05:44. Civil Dark: 21:32 - 05:22. Nautical Dark: 22:22 - 04:32. Astro Dark: 23:23 - 03:30

Total Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
7
30
48
96
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
26
0
0
24
19

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
7
14
17
20
25
4
47

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
7
27
41
82
100
100
100
100
100
100
100

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
3

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

Chance of Frost

Temperature (°C)

20
20
21
22
21
21
20
19
17
15
15
14
14
13
13
13
13
13
13
14
16
17
19
20

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

31
30
30
30
31
34
38
46
55
57
58
61
62
63
65
66
63
64
64
60
54
47
43
40

Pressure (mb)

1026
1025
1025
1024
1023
1023
1023
1023
1023
1023
1023
1023
1023
1022
1022
1021
1021
1021
1021
1021
1021
1020
1020
1019

Ozone (du)

379
379
379
379
380
381
381
381
381
382
384
386
386
385
386
388
389
385
384
382
380
379
378
377

Saturday 2

Waning Gibbous 98%

22:28

06:07

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
12 Bad

Sun - Rise: 05:59, Set: 20:56, Transit: 13:28. Moon - Rise: 22:28, Set: 06:07. Civil Dark: 21:34 - 05:20. Nautical Dark: 22:24 - 04:30. Astro Dark: 23:27 - 03:26

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
97
90
81
89
87
93
100
100
100
96
86
86
87
89
92
95

Low Clouds (% Sky Obscured)

23
27
36
57
0
29
6
0
3
0
0
0
0
0
0
0
0
1
5
19
29
43
52
62

Medium Clouds (% Sky Obscured)

86
65
75
66
52
100
100
96
89
74
58
89
87
92
82
100
97
94
74
81
83
89
79
95

High Clouds (% Sky Obscured)

100
96
100
94
100
100
100
100
87
47
54
62
34
70
100
100
100
78
73
59
43
26
47
68

ISS Passover

Visibility (miles)

9
9
9
9
9
9
1
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
Light Rain
None
Light Rain
Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

10
14
23
61
26
80
95
41
21
5
13
9
11
7
3
3
1
9
9
11
8
7
17
33

Precipitation Amount (mm)

0
0
0
0.4
0
0.6
1.5
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

8
8
8
8
8
4
6
4
1
3
4
4
5
6
5
6
6
5
7
10
10
13
13
15

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

18
19
20
22
19
19
20
19
19
16
16
16
15
15
15
15
14
13
13
13
14
13
14
13

Dew Point (°C)

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

Relative Humidity (%)

39
37
37
40
54
53
69
86
89
89
89
90
92
92
92
92
90
86
82
73
69
59
53
51

Pressure (mb)

1019
1018
1017
1016
1016
1016
1015
1015
1015
1015
1014
1014
1013
1013
1012
1012
1012
1011
1011
1011
1011
1011
1011
1011

Ozone (du)

375
374
373
373
372
371
369
367
366
366
367
366
366
365
366
366
365
367
368
367
365
366
366
367

Sunday 3

Waning Gibbous 95%

23:38

06:38

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
12 Bad

Sun - Rise: 05:57, Set: 20:58, Transit: 13:28. Moon - Rise: 23:38, Set: 06:38. Civil Dark: 21:36 - 05:18. Nautical Dark: 22:26 - 04:28. Astro Dark: 23:30 - 03:23

Total Clouds (% Sky Obscured)

99
96
94
91
82
71
62
71
80
90
87
89
93
94
94
94
95
95
92
86
78
72
79
89

Low Clouds (% Sky Obscured)

71
66
60
54
52
51
47
58
66
74
71
68
66
66
67
68
74
80
86
76
66
54
69
81

Medium Clouds (% Sky Obscured)

97
96
94
91
27
46
10
8
6
4
12
23
23
30
59
32
33
83
29
23
24
22
23
22

High Clouds (% Sky Obscured)

88
64
39
15
15
12
15
30
49
69
43
22
1
5
0
0
0
0
0
0
0
0
2
4

ISS Passover

Visibility (miles)

9
3
4
9
9
9
9
9
9
9
3
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

Light Rain
Light Rain
Very Light Rain
None
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
Very Light Rain
None
None
None
None
None

Precipitation Probability (%)

89
79
45
34
49
36
13
6
25
33
23
2
3
6
12
19
32
40
42
38
36
35
36
41

Precipitation Amount (mm)

0.8
0.6
0.2
0
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0
0
0
0
0

Wind Speed/Direction (mph)

14
11
10
11
12
13
11
9
6
5
4
4
4
4
4
4
4
4
4
4
4
5
5
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

55
89
89
83
71
74
78
76
84
89
93
95
93
96
95
95
96
95
93
87
80
74
66
59

Pressure (mb)

1011
1011
1011
1011
1011
1011
1011
1012
1012
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1014
1014
1013
1013

Ozone (du)

367
369
373
374
374
375
377
378
380
381
380
379
378
377
376
375
375
375
375
374
374
374
374
374

Monday 4

Waning Gibbous 90%

00:41

07:20

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
12 Bad

Sun - Rise: 05:55, Set: 20:59, Transit: 13:28. Moon - Rise: 00:41, Set: 07:20. Civil Dark: 21:38 - 05:16. Nautical Dark: 22:29 - 04:25. Astro Dark: 23:33 - 03:19

Total Clouds (% Sky Obscured)

98
82
66
53
58
65
69
68
69
72
71
68
64
63
63
67
74
77
77
76
73
77
81
87

Low Clouds (% Sky Obscured)

94
81
66
53
55
56
60
60
62
62
55
56
54
57
60
63
63
67
71
70
64
66
64
64

Medium Clouds (% Sky Obscured)

24
18
66
53
58
65
69
68
69
72
71
68
64
63
63
63
66
64
62
46
30
10
9
4

High Clouds (% Sky Obscured)

6
9
7
5
5
5
5
5
0
0
0
5
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
8
7
5
9
9
5
8
9
7
8
8
9
9
9
9
7
5
3
5

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
Very Light Rain
Very Light Rain
Light Rain
Light Rain
Very Light Rain
Very Light Rain
Light Rain
Very Light Rain
None
None
Very Light Rain
Very Light Rain
Very Light Rain
Light Rain
Very Light Rain
None
None
None
None
None

Precipitation Probability (%)

35
32
34
32
58
67
85
84
78
72
74
62
56
58
62
64
69
68
56
50
43
32
39
40

Precipitation Amount (mm)

0
0
0
0
0.2
0.3
0.5
0.4
0.3
0.3
0.4
0.2
0
0
0.2
0.2
0.3
0.4
0.2
0
0
0
0
0

Wind Speed/Direction (mph)

6
6
7
5
5
5
4
4
2
2
4
6
5
4
2
3
6
5
4
4
4
3
3
3

Chance of Frost

Temperature (°C)

18
19
18
18
18
16
14
14
13
13
12
12
12
11
11
11
11
11
10
10
10
10
10
11

Feels Like (°C)

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

Dew Point (°C)

8
8
8
9
10
12
12
13
12
12
11
11
11
10
10
11
10
10
10
10
10
10
9
9

Relative Humidity (%)

52
51
52
53
59
77
86
92
92
93
95
96
96
95
95
96
96
96
96
96
95
95
93
91

Pressure (mb)

1013
1013
1012
1012
1012
1012
1012
1012
1012
1013
1013
1013
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1011

Ozone (du)

373
372
372
372
372
371
371
371
372
372
373
375
376
375
377
379
381
382
383
384
384
384
385
384

Tuesday 5

Waning Gibbous 83%

01:33

08:15

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
12 Bad

Sun - Rise: 05:54, Set: 21:01, Transit: 13:28. Moon - Rise: 01:33, Set: 08:15. Civil Dark: 21:40 - 05:14. Nautical Dark: 22:31 - 04:23. Astro Dark: 23:37 - 03:15

Total Clouds (% Sky Obscured)

91
89
88
86
84
83
83
86
92
96
96
96
95
82
60
44
59
76
89
92
95
98
98
99

Low Clouds (% Sky Obscured)

73
78
83
86
78
69
58
67
76
85
73
61
48
45
41
38
53
69
79
75
71
64
76
87

Medium Clouds (% Sky Obscured)

8
6
6
4
24
42
54
53
54
54
57
60
61
44
24
8
28
49
69
61
52
46
54
62

High Clouds (% Sky Obscured)

0
0
0
0
5
5
10
7
4
1
7
17
25
20
15
9
10
9
7
8
9
10
7
4

ISS Passover

Visibility (miles)

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

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
Very Light Rain
Light Rain
Light Rain
Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
Very Light Rain
Very Light Rain
Very Light Rain

Precipitation Probability (%)

37
37
40
44
63
78
91
71
50
26
23
21
19
28
35
45
39
31
20
38
49
58
59
62

Precipitation Amount (mm)

0
0
0
0
0.3
0.6
0.8
0.4
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.2
0.3

Wind Speed/Direction (mph)

4
6
6
6
7
7
7
7
6
5
4
3
3
4
3
2
3
3
3
3
4
5
6
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

88
88
87
86
84
88
91
96
96
95
95
95
95
96
96
96
98
96
95
91
91
90
90
91

Pressure (mb)

1011
1011
1011
1010
1010
1010
1010
1010
1010
1011
1011
1011
1011
1011
1011
1010
1010
1010
1010
1011
1010
1010
1010
1011

Ozone (du)

382
381
381
380
379
381
383
384
385
385
386
386
387
388
390
392
395
394
394
393
395
397
399
396

Wednesday 6

Waning Gibbous 75%

02:12

09:20

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

Sun - Rise: 05:52, Set: 21:02, Transit: 13:28. Moon - Rise: 02:12, Set: 09:20. Civil Dark: 21:42 - 05:12. Nautical Dark: 22:33 - 04:20. Astro Dark: 23:41 - 03:11

Total Clouds (% Sky Obscured)

100
99
98
96
93
90
87
83
79
75
81
86
93
93
92
89
72
53
35

Low Clouds (% Sky Obscured)

94
85
75
67
68
70
73
59
44
35
40
46
54
55
52
52
57
53
35

Medium Clouds (% Sky Obscured)

70
61
49
37
30
17
10
9
4
0
0
0
0
4
6
8
6
4
0

High Clouds (% Sky Obscured)

1
1
1
2
2
1
1
18
33
46
56
63
60
43
16
10
13
25
35

ISS Passover

Visibility (miles)

7
6
7
8
9
9
9
9
9
9
9
9
9
9
9
9
9
7
4

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

Very Light Rain
Light Rain
Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
Very Light Rain
Very Light Rain

Precipitation Probability (%)

68
73
73
67
52
38
25
21
17
10
6
2
0
8
14
19
32
41
48

Precipitation Amount (mm)

0.3
0.4
0.4
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.3

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

95
96
96
95
94
93
93
93
91
90
88
88
88
88
90
91
94
94
94

Pressure (mb)

1011
1011
1012
1012
1013
1013
1014
1014
1015
1015
1016
1016
1016
1016
1017
1017
1017
1018
1018

Ozone (du)

394
391
388
385
383
383
383
383
383
383
383
383
383
383
383
383
384
381
378

Forecast for Velbert, Düsseldorf District, Germany (51.34,7.04)

Generated: 30/04/26 13:28:06. Forecast: 30/04/26 to 06/05/26. Timezone: UTC+2.00