Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 16

Waning Crescent 2%

06:04

19:44

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

Sun - Rise: 06:44, Set: 20:39, Transit: 13:42. Moon - Rise: 06:04, Set: 19:44. Civil Dark: 21:14 - 06:09. Nautical Dark: 21:58 - 05:26. Astro Dark: 22:47 - 04:37

Total Clouds (% Sky Obscured)

92
92
75
75
69
70
67
47
95
100
100
97
86
93
60
59
53
32
29
35
4
48
62
72

Low Clouds (% Sky Obscured)

83
52
55
54
54
60
51
36
50
41
26
37
34
39
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

25
23
19
55
50
22
2
3
35
56
77
61
47
60
22
30
53
32
29
35
4
48
62
72

High Clouds (% Sky Obscured)

1
1
8
10
14
9
33
3
77
92
91
49
16
49
47
31
21
20
25
30
4
21
23
14

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 (%)

48
5
0
1
1
1
1
1
3
17
3
0
1
0
0
1
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
6
6
6
8
9
9
9
9
9
9
8
6
6
5
4
3
3
2
2
2
2

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

89
89
90
90
90
88
77
70
64
62
55
49
49
55
57
52
54
60
61
64
68
69
71
70

Pressure (mb)

1020
1020
1021
1021
1021
1021
1022
1022
1022
1022
1022
1022
1022
1022
1021
1022
1021
1022
1022
1022
1022
1022
1022
1022

Ozone (du)

373
377
382
378
378
378
376
378
377
378
374
371
369
366
364
363
361
360
360
360
361
361
362
363

Friday 17

New Moon 0%

06:19

21:13

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
01 Bad
02 Bad

Sun - Rise: 06:42, Set: 20:41, Transit: 13:42. Moon - Rise: 06:19, Set: 21:13. Civil Dark: 21:16 - 06:07. Nautical Dark: 22:00 - 05:23. Astro Dark: 22:49 - 04:34

Total Clouds (% Sky Obscured)

73
99
100
80
76
70
96
86
87
99
81
88
84
81
96
96
93
96
93
74
81
92
93
89

Low Clouds (% Sky Obscured)

1
0
1
1
0
0
0
0
0
4
6
3
17
4
5
0
5
0
23
20
0
4
7
33

Medium Clouds (% Sky Obscured)

73
35
25
30
33
28
15
14
11
16
6
8
9
17
29
51
51
61
54
44
63
66
52
52

High Clouds (% Sky Obscured)

40
93
100
18
11
3
83
72
65
99
42
42
29
22
46
39
25
42
46
10
5
1
2
2

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
1
16
7
11
5
11
4
14
2
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
4
5
5
6
6
8
8
8
9
9
9
9
8
6
6
6
4
2
3
4
3
3
3

Chance of Frost

Temperature (°C)

8
8
8
8
8
9
12
15
17
18
19
19
20
20
20
19
19
18
16
16
14
13
13
13

Feels Like (°C)

6
6
6
5
6
8
11
14
15
15
16
16
17
18
18
18
18
18
15
15
13
12
12
11

Dew Point (°C)

3
3
3
3
3
5
7
9
9
10
10
9
10
11
12
11
11
11
10
9
9
8
8
8

Relative Humidity (%)

69
71
71
70
74
74
70
65
60
57
54
52
52
55
59
59
60
65
67
66
69
71
72
72

Pressure (mb)

1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1021
1021
1021
1021
1021
1021
1021
1022
1022
1022
1022
1022
1022

Ozone (du)

364
365
364
365
365
364
364
363
363
362
359
358
359
360
359
357
357
358
359
360
360
361
360
359

Saturday 18

Waxing Crescent 2%

06:38

22:46

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
01 Bad
02 Bad

Sun - Rise: 06:40, Set: 20:43, Transit: 13:41. Moon - Rise: 06:38, Set: 22:46. Civil Dark: 21:18 - 06:05. Nautical Dark: 22:02 - 05:21. Astro Dark: 22:52 - 04:31

Total Clouds (% Sky Obscured)

91
87
95
100
98
94
96
97
99
99
87
97
92
95
73
97
65
59
64
65
71
76
76
86

Low Clouds (% Sky Obscured)

22
30
20
33
50
48
48
53
52
73
63
51
36
57
58
77
38
39
47
56
68
76
76
82

Medium Clouds (% Sky Obscured)

59
72
89
87
62
51
79
57
50
57
83
89
92
44
22
22
28
28
24
25
25
25
20
20

High Clouds (% Sky Obscured)

14
26
34
100
62
30
10
9
4
11
15
67
13
6
0
19
45
58
64
65
71
76
76
85

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
1
5
20
12
19
11
10
3
1
2
6
8
10
20
29
37
36

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

8
8
7
7
6
7
8
9
10
11
11
12
13
13
13
11
9
8
7
6
5
5
6
6

Relative Humidity (%)

79
79
77
76
73
73
72
71
73
74
74
75
77
77
77
71
68
64
66
67
69
71
76
80

Pressure (mb)

1022
1022
1022
1022
1022
1022
1022
1022
1023
1023
1023
1023
1023
1023
1023
1023
1023
1023
1024
1024
1024
1025
1025
1025

Ozone (du)

357
354
350
349
350
351
353
355
356
357
358
359
361
366
369
375
383
385
383
384
385
384
384
385

Sunday 19

Waxing Crescent 6%

07:03

00:18

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

Sun - Rise: 06:38, Set: 20:44, Transit: 13:41. Moon - Rise: 07:03, Set: 00:18. Civil Dark: 21:20 - 06:03. Nautical Dark: 22:04 - 05:18. Astro Dark: 22:55 - 04:28

Total Clouds (% Sky Obscured)

81
76
76
81
71
68
67
64
55
53
48
55
61
69
61
40
29
48
52
51
44
38
32
35

Low Clouds (% Sky Obscured)

81
76
76
69
57
49
43
35
25
16
9
23
40
56
52
38
29
41
37
36
35
35
32
35

Medium Clouds (% Sky Obscured)

25
25
20
20
20
18
20
17
24
26
20
19
17
16
13
6
0
14
28
41
28
13
0
2

High Clouds (% Sky Obscured)

81
75
76
80
71
67
40
13
8
4
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 (%)

34
29
28
26
20
16
10
0
0
1
5
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
4
5
5
7
9
10
10
10
10
10
11
14
12
10
9
10
9
8
8
8
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

7
7
7
7
6
6
6
5
4
4
4
3
2
3
4
4
4
3
2
1
1
1
1
2

Relative Humidity (%)

82
84
87
88
88
85
76
67
60
54
49
45
41
41
47
49
52
56
56
56
60
65
70
75

Pressure (mb)

1025
1025
1025
1025
1025
1025
1026
1026
1026
1026
1025
1025
1025
1024
1024
1024
1024
1024
1025
1025
1025
1025
1025
1025

Ozone (du)

385
387
387
386
387
386
387
386
387
387
389
390
390
390
389
389
388
389
391
391
391
391
390
393

Monday 20

Waxing Crescent 14%

07:40

01:39

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 OK
00 OK
01 Good
02 OK

Sun - Rise: 06:36, Set: 20:46, Transit: 13:41. Moon - Rise: 07:40, Set: 01:39. Civil Dark: 21:21 - 06:00. Nautical Dark: 22:06 - 05:16. Astro Dark: 22:57 - 04:25

Total Clouds (% Sky Obscured)

49
72
81
76
72
71
69
52
56
70
97
94
92
90
81
71
67
55
53
44
25
12
3
15

Low Clouds (% Sky Obscured)

45
49
46
42
41
48
53
45
37
33
41
45
49
53
55
49
47
39
27
20
14
9
3
14

Medium Clouds (% Sky Obscured)

4
3
2
2
3
0
0
0
22
37
60
59
54
44
31
14
8
4
1
0
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
4
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
3
6
8
14
15
7
11
11
11
9
8
7
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

4
3
3
2
2
3
4
5
8
9
10
9
8
8
8
8
8
7
6
5
5
5
5
5

Dew Point (°C)

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

Relative Humidity (%)

79
82
85
88
89
85
77
64
56
53
54
56
61
66
71
73
76
78
80
81
82
82
84
85

Pressure (mb)

1025
1025
1024
1024
1024
1024
1024
1023
1023
1023
1022
1022
1021
1021
1021
1021
1021
1021
1021
1021
1022
1022
1022
1022

Ozone (du)

394
395
395
396
398
401
406
409
412
408
403
400
398
395
393
396
399
402
404
406
408
407
407
406

Tuesday 21

Waxing Crescent 23%

08:33

02:44

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

Sun - Rise: 06:34, Set: 20:48, Transit: 13:41. Moon - Rise: 08:33, Set: 02:44. Civil Dark: 21:23 - 05:58. Nautical Dark: 22:08 - 05:13. Astro Dark: 23:00 - 04:22

Total Clouds (% Sky Obscured)

27
41
47
56
65
48
47
49
38
31
25
17
9
0
0
0
0
1
1
2
5
10
14
19

Low Clouds (% Sky Obscured)

26
38
47
56
65
48
47
49
35
23
16
9
5
0
0
0
0
1
1
1
0
0
0
0

Medium Clouds (% Sky Obscured)

0
0
1
2
3
2
1
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
1
1
2
8

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 (%)

4
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)

8
8
8
9
9
10
11
12
13
13
14
14
13
13
12
11
10
9
8
7
6
6
6
5

Chance of Frost

Temperature (°C)

6
5
4
4
4
4
6
7
9
10
11
13
13
13
14
13
12
11
10
8
7
6
6
5

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

82
79
77
76
75
75
68
65
60
51
44
38
37
35
34
39
42
48
53
58
64
69
74
79

Pressure (mb)

1022
1022
1022
1022
1022
1023
1023
1023
1023
1023
1023
1022
1022
1022
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021

Ozone (du)

404
402
400
399
398
397
396
395
394
393
392
390
391
391
392
396
400
404
402
400
398
397
395
394

Wednesday 22

Waxing Crescent 34%

09:43

No Set

Sun - Rise: 06:32, Set: 20:49, Transit: 13:41. Moon - Rise: 09:43, Set: No Set. Civil Dark: 21:25 - 05:56. Nautical Dark: 22:10 - 05:11. Astro Dark: 23:03 - 04:18

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 Brussels, Bruxelles-Capitale, Kingdom of Belgium (50.85,4.35)

Generated: 16/04/26 03:34:57. Forecast: 16/04/26 to 22/04/26. Timezone: UTC+2.00