Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 16

Waning Crescent 2%

06:19

19:44

08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 OK
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: 06:42, Set: 20:39, Transit: 13:42. Moon - Rise: 06:19, Set: 19:44. Civil Dark: 21:14 - 06:07. Nautical Dark: 21:58 - 05:23. Astro Dark: 22:47 - 04:34

Total Clouds (% Sky Obscured)

84
80
89
94
100
95
80
85
74
57
27
50
84
90
85
82
91
78
83
96
100
100
87
85

Low Clouds (% Sky Obscured)

57
53
51
72
50
35
38
51
45
30
10
5
5
5
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

48
22
30
34
41
39
41
34
35
18
16
40
74
87
85
80
47
49
83
87
100
43
37
37

High Clouds (% Sky Obscured)

12
64
89
91
100
92
4
8
3
29
20
12
29
63
39
53
75
35
29
85
100
100
49
16

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
2
0
19
18
8
14
3
0
0
0
0
0
0
0
0
0
0
0
0
0
2
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
6
7
9
8
8
8
9
7
6
6
5
3
3
3
3
3
3
4
4
5
5
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

88
80
71
66
66
66
56
50
51
58
58
57
56
55
60
63
64
65
63
64
68
67
68
70

Pressure (mb)

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

Ozone (du)

380
377
377
378
377
375
374
372
370
367
366
364
361
361
361
362
362
362
362
362
361
361
362
362

Friday 17

New Moon 0%

06:38

21:13

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 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad

Sun - Rise: 06:40, Set: 20:41, Transit: 13:42. Moon - Rise: 06:38, Set: 21:13. Civil Dark: 21:16 - 06:05. Nautical Dark: 22:00 - 05:21. Astro Dark: 22:49 - 04:31

Total Clouds (% Sky Obscured)

88
76
95
100
95
94
90
95
91
83
92
60
71
82
52
45
70
81
78
93
78
89
87
98

Low Clouds (% Sky Obscured)

0
0
0
0
7
23
5
23
0
0
20
0
5
26
0
0
0
0
0
24
6
11
6
29

Medium Clouds (% Sky Obscured)

31
29
30
19
23
39
33
26
26
16
17
6
6
10
12
16
37
49
51
60
47
68
61
96

High Clouds (% Sky Obscured)

1
7
88
90
79
21
31
35
34
25
14
28
22
17
4
0
11
0
0
0
19
49
25
73

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
1
23
4
4
14
4
6
9
2
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)

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

Chance of Frost

Temperature (°C)

10
13
15
17
18
19
20
20
20
19
19
19
18
16
15
14
13
12
11
11
11
11
11
11

Feels Like (°C)

8
11
14
16
18
18
17
17
18
17
17
17
16
15
13
13
13
11
11
10
10
11
11
10

Dew Point (°C)

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

Relative Humidity (%)

72
68
64
59
56
54
50
48
55
55
55
58
64
67
69
69
69
70
71
72
72
73
72
72

Pressure (mb)

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

Ozone (du)

365
367
367
367
365
362
361
360
361
362
360
358
358
359
360
361
360
361
360
359
358
356
353
354

Saturday 18

Waxing Crescent 2%

07:03

22:46

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 OK
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad

Sun - Rise: 06:38, Set: 20:43, Transit: 13:41. Moon - Rise: 07:03, Set: 22:46. Civil Dark: 21:18 - 06:03. Nautical Dark: 22:02 - 05:18. Astro Dark: 22:52 - 04:28

Total Clouds (% Sky Obscured)

96
95
99
95
91
80
89
99
92
100
100
100
100
65
60
60
53
45
50
61
72
81
77
76

Low Clouds (% Sky Obscured)

36
26
37
32
35
1
15
43
42
54
64
70
58
40
40
45
51
45
32
20
7
14
21
25

Medium Clouds (% Sky Obscured)

66
52
70
91
86
80
80
79
75
92
60
35
30
30
25
18
11
6
4
2
0
8
17
20

High Clouds (% Sky Obscured)

73
75
89
37
0
4
18
0
10
86
97
100
100
65
60
60
33
5
33
61
72
81
77
76

ISS Passover

Visibility (miles)

9
9
9
9
9
8
9
8
9
9
8
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
4
9
31
35
46
36
27
42
19
11
11
11
5
3
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

1
1
1
2
4
5
7
10
11
10
12
10
9
7
6
6
5
5
4
4
4
4
4
5

Chance of Frost

Temperature (°C)

11
13
15
16
18
19
20
20
19
18
16
15
14
12
11
11
10
10
9
9
8
7
7
7

Feels Like (°C)

11
12
15
16
17
17
18
18
16
16
13
12
11
10
11
11
10
10
10
9
8
7
6
7

Dew Point (°C)

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

Relative Humidity (%)

73
75
70
65
64
61
57
58
59
63
74
78
72
72
79
83
83
84
84
85
87
88
88
88

Pressure (mb)

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

Ozone (du)

354
355
354
354
356
355
354
354
358
362
365
369
371
375
377
378
378
377
379
380
382
382
384
385

Sunday 19

Waxing Crescent 6%

07:40

00:18

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
06 Bad
07 Bad

Sun - Rise: 06:36, Set: 20:44, Transit: 13:41. Moon - Rise: 07:40, Set: 00:18. Civil Dark: 21:20 - 06:00. Nautical Dark: 22:04 - 05:16. Astro Dark: 22:55 - 04:25

Total Clouds (% Sky Obscured)

85
81
76
82
92
95
95
93
97
100
87
95
100
94
81
77
78
72
72
68
59
57
58
51

Low Clouds (% Sky Obscured)

17
9
0
6
15
22
23
21
22
30
38
48
48
51
47
47
49
54
48
38
32
33
36
39

Medium Clouds (% Sky Obscured)

17
17
13
14
17
20
20
25
25
39
47
41
42
44
45
55
50
45
55
57
56
54
47
38

High Clouds (% Sky Obscured)

85
81
75
82
80
86
95
93
97
100
87
95
100
94
81
77
78
72
72
68
59
57
32
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
22
2
0
0
0
0
0
0
0
1
0
1
1
1
2
2
0
2
2
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
6
8
9
9
9
9
9
10
13
12
11
10
9
10
10
10
9
9
9
9
8
8
7

Chance of Frost

Temperature (°C)

7
9
11
12
14
15
16
16
16
16
15
14
13
12
11
10
9
8
7
6
6
5
5
4

Feels Like (°C)

7
8
9
11
11
12
12
13
13
11
10
10
10
9
7
7
7
6
5
4
4
3
4
3

Dew Point (°C)

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

Relative Humidity (%)

84
73
66
60
54
50
46
42
41
52
55
56
58
59
63
67
68
68
70
78
85
86
88
89

Pressure (mb)

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

Ozone (du)

384
384
385
385
385
384
384
386
387
389
391
393
395
396
398
399
400
401
404
405
406
407
410
412

Monday 20

Waxing Crescent 14%

No Rise

01:39

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

Sun - Rise: 06:34, Set: 20:46, Transit: 13:41. Moon - Rise: No Rise, Set: 01:39. Civil Dark: 21:21 - 05:58. Nautical Dark: 22:06 - 05:13. Astro Dark: 22:57 - 04:22

Total Clouds (% Sky Obscured)

46
50
72
67
58
52
61
71
81
87
91
88
38
24
11
10
10
10
17
22
28
41
52
68

Low Clouds (% Sky Obscured)

36
44
64
60
54
47
45
40
35
38
46
46
33
20
4
4
2
2
15
22
28
41
52
68

Medium Clouds (% Sky Obscured)

31
17
2
7
16
10
20
59
76
59
49
54
12
6
0
3
5
8
6
4
2
2
1
3

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
4
5
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
3
3
16
10
25
21
25
22
16
26
23
14
12
8
7
4
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
8
9
9
9
10
10
10
9
9
7
8
7
9
9
9
10
10
9
9
9
9
10
10

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

3
3
3
4
4
4
4
4
3
3
4
4
4
5
5
5
5
5
4
4
4
4
3
3

Relative Humidity (%)

85
77
70
72
66
60
58
57
55
55
57
59
66
72
78
85
87
90
90
91
91
91
88
85

Pressure (mb)

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

Ozone (du)

413
413
411
411
410
410
410
410
409
408
408
407
406
406
405
404
405
405
406
405
404
404
403
402

Tuesday 21

Waxing Crescent 23%

08:33

02:44

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

Sun - Rise: 06:32, Set: 20:48, Transit: 13:41. Moon - Rise: 08:33, Set: 02:44. Civil Dark: 21:23 - 05:56. Nautical Dark: 22:08 - 05:11. Astro Dark: 23:00 - 04:18

Total Clouds (% Sky Obscured)

65
58
51
42
32
23
12
6
0
0
0
0
1
2
3
11
19
27
24
18
13
13
10
9

Low Clouds (% Sky Obscured)

65
58
51
27
18
9
4
3
0
0
0
0
1
1
2
2
2
2
2
1
1
0
0
0

Medium Clouds (% Sky Obscured)

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

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
9
19
27
24
18
13
13
10
9

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

80
71
64
57
50
45
39
37
34
32
37
42
48
55
62
73
72
72
73
78
82
86
86
86

Pressure (mb)

1021
1021
1022
1022
1021
1021
1021
1021
1020
1020
1020
1019
1019
1019
1019
1019
1019
1019
1019
1018
1017
1017
1016
1016

Ozone (du)

401
399
398
396
395
394
393
395
396
398
397
396
395
394
394
393
390
387
383
382
380
378
377
375

Wednesday 22

Waxing Crescent 34%

09:43

03:28

08 Good
09 Good
10 OK
11 OK
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

Sun - Rise: 06:30, Set: 20:49, Transit: 13:41. Moon - Rise: 09:43, Set: 03:28. Civil Dark: 21:25 - 05:54. Nautical Dark: 22:10 - 05:08. Astro Dark: 23:03 - 04:15

Total Clouds (% Sky Obscured)

12
15
22
48
73
99
99
99
99
99
100
100
100
100
100
86
72
56

Low Clouds (% Sky Obscured)

0
0
0
0
0
1
7
13
19
17
19
10
10
10
15
8
6
7

Medium Clouds (% Sky Obscured)

12
14
8
19
31
39
59
77
97
98
98
100
100
100
100
79
58
37

High Clouds (% Sky Obscured)

12
15
22
48
73
98
90
82
72
51
27
10
12
20
22
16
9
0

ISS Passover

Visibility (miles)

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

Precipitation Type

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
17
26
31
36
39
39
33
25
9

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

5
7
8
10
11
12
14
14
14
15
13
12
10
9
9
8
7
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

86
75
65
57
51
47
42
45
48
52
62
72
84
82
82
81
82
83

Pressure (mb)

1015
1015
1014
1013
1012
1011
1010
1009
1008
1007
1007
1006
1005
1005
1005
1004
1004
1003

Ozone (du)

373
373
372
372
372
372
371
372
373
374
378
382
385
392
399
405
414
422

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

Generated: 16/04/26 08:35:51. Forecast: 16/04/26 to 22/04/26. Timezone: UTC+2.00