Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 13

Waning Crescent 21%

05:38

15:38

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: 06:48, Set: 20:35, Transit: 13:43. Moon - Rise: 05:38, Set: 15:38. Civil Dark: 21:09 - 06:14. Nautical Dark: 21:52 - 05:31. Astro Dark: 22:39 - 04:43

Total Clouds (% Sky Obscured)

98
98
98
99
100
100
100
100
100
100
100
100
100
100
88
93
86
81
83
77
83
78
77
69

Low Clouds (% Sky Obscured)

35
40
35
25
29
15
35
46
25
20
14
45
56
54
54
64
62
72
73
64
80
78
77
69

Medium Clouds (% Sky Obscured)

98
98
98
99
100
100
100
100
100
100
99
100
100
100
53
51
39
29
16
10
2
0
0
0

High Clouds (% Sky Obscured)

98
98
98
99
100
100
100
97
92
21
75
100
100
100
8
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
35
78
100
100

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 (%)

5
6
0
0
17
8
8
21
18
22
20
20
9
2
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

3
5
6
8
10
10
11
11
10
11
10
9
10
9
8
8
8
8
8
7
7
7
7
7

Dew Point (°C)

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

Relative Humidity (%)

72
70
65
63
58
56
51
49
47
45
52
63
74
79
80
84
88
90
91
90
91
91
91
91

Pressure (mb)

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

Ozone (du)

396
399
398
397
396
396
397
401
410
417
424
427
433
440
446
457
460
454
446
436
433
432
428
426

Tuesday 14

Waning Crescent 12%

05:51

16:57

08 Bad
09 OK
10 OK
11 Bad
12 Bad
13 OK
14 OK
15 OK
16 OK
17 OK
18 Bad
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

Sun - Rise: 06:46, Set: 20:36, Transit: 13:42. Moon - Rise: 05:51, Set: 16:57. Civil Dark: 21:11 - 06:11. Nautical Dark: 21:54 - 05:28. Astro Dark: 22:42 - 04:40

Total Clouds (% Sky Obscured)

57
26
38
52
56
25
36
38
41
36
61
18
5
9
10
6
0
0
0
3
4
2
2
15

Low Clouds (% Sky Obscured)

57
24
36
49
53
25
36
38
41
36
34
4
0
0
0
3
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
1
2

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
43
12
5
8
9
4
0
0
0
3
4
1
0
5

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 (%)

100
100
33
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
4
4
3
3
3
3
3
4
4
3
3
2
1
1
2
3
4
4
5
4
4
5
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

87
77
67
58
53
49
46
43
40
40
40
45
51
55
56
59
61
61
63
65
66
67
68
71

Pressure (mb)

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

Ozone (du)

426
424
420
416
414
411
406
402
397
394
394
392
392
391
388
386
382
380
376
372
370
369
367
367

Wednesday 15

Waning Crescent 6%

06:04

18:19

08 Good
09 Good
10 Good
11 Good
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: 06:44, Set: 20:38, Transit: 13:42. Moon - Rise: 06:04, Set: 18:19. Civil Dark: 21:13 - 06:09. Nautical Dark: 21:56 - 05:26. Astro Dark: 22:44 - 04:37

Total Clouds (% Sky Obscured)

12
14
13
9
100
97
49
81
100
100
95
100
100
100
98
100
99
89
73
90
93
94
95
96

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
1
26
66
83
66
49
48
67
78
78
78
82

Medium Clouds (% Sky Obscured)

12
14
13
9
55
46
49
81
90
100
95
80
97
93
98
95
77
22
22
56
91
92
20
18

High Clouds (% Sky Obscured)

7
9
8
4
100
92
11
21
51
73
75
100
100
100
0
0
0
0
0
0
0
0
10
20

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
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
1
6
17
20
4
5
22
42
45
38
26
22

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

Chance of Frost

Temperature (°C)

7
10
13
15
17
18
18
19
19
19
18
17
16
15
14
14
13
13
13
12
12
12
12
11

Feels Like (°C)

4
7
10
12
13
14
14
15
15
15
15
15
14
12
11
11
11
11
11
11
10
10
10
9

Dew Point (°C)

2
4
6
7
6
5
5
6
7
7
7
8
9
9
8
8
9
9
9
10
10
10
11
11

Relative Humidity (%)

70
66
61
56
49
44
42
43
44
47
50
55
62
67
67
65
72
75
79
86
87
90
93
95

Pressure (mb)

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

Ozone (du)

366
364
361
360
359
359
359
359
357
355
353
351
349
350
358
359
368
372
366
365
366
368
367
366

Thursday 16

Waning Crescent 2%

06:19

19:44

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

86
60
46
52
62
58
63
71
77
87
98
99
99
100
100
100
99
95
82
78
53
45
57
54

Low Clouds (% Sky Obscured)

65
60
46
52
61
58
57
54
48
36
28
21
8
4
15
17
4
1
0
1
0
1
1
0

Medium Clouds (% Sky Obscured)

16
11
0
4
9
13
15
22
25
38
45
38
38
39
39
47
42
39
69
78
30
34
35
35

High Clouds (% Sky Obscured)

15
1
2
4
8
9
38
66
77
87
94
92
94
97
100
99
98
95
65
33
2
1
2
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 (%)

12
4
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

10
10
12
13
14
15
16
16
16
17
15
14
13
12
11
10
10
9
9
8
7
7
8
7

Dew Point (°C)

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

Relative Humidity (%)

88
79
68
62
56
50
46
45
44
45
48
59
62
63
65
69
70
76
78
80
81
84
85
84

Pressure (mb)

1022
1022
1022
1023
1023
1023
1023
1023
1022
1022
1022
1023
1023
1023
1024
1024
1024
1024
1024
1024
1024
1023
1023
1023

Ozone (du)

369
373
376
376
377
379
380
381
382
376
371
370
368
366
364
364
363
360
359
358
359
360
359
357

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 Bad
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)

67
71
66
63
74
82
84
88
92
95
97
100
97
99
100
100
100
100
98
97
96
96
98
100

Low Clouds (% Sky Obscured)

0
1
0
1
2
3
7
12
19
17
17
10
12
9
6
4
2
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

33
59
49
30
74
82
79
84
84
85
88
87
53
60
80
89
95
100
98
97
96
96
98
100

High Clouds (% Sky Obscured)

3
0
0
0
0
0
4
13
17
44
71
98
88
94
100
99
97
96
68
43
17
45
69
93

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
4
4
5
5
5
5
5
5
6
5
5
4
5
5
5
6
6
6
6
6
5
5
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

6
7
7
7
6
6
6
6
6
6
6
7
7
7
6
6
6
5
5
5
5
5
5
5

Relative Humidity (%)

81
73
65
59
53
49
47
45
45
45
49
54
56
58
60
62
63
62
62
65
67
68
69
69

Pressure (mb)

1024
1024
1024
1023
1023
1023
1022
1022
1022
1021
1021
1021
1021
1021
1022
1022
1021
1021
1021
1021
1021
1021
1020
1020

Ozone (du)

357
358
360
361
361
360
359
359
360
361
361
361
359
358
357
355
356
357
358
359
360
361
360
360

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 Bad
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)

93
86
80
87
93
97
97
98
99
96
92
88
82
75
70
74
80
86
81
80
81
84
89
92

Low Clouds (% Sky Obscured)

0
1
1
3
4
4
4
4
4
4
4
3
2
1
0
0
0
0
12
30
45
44
47
49

Medium Clouds (% Sky Obscured)

93
86
80
68
49
30
33
39
45
41
40
38
34
29
25
37
51
65
55
50
37
35
33
30

High Clouds (% Sky Obscured)

70
46
18
45
71
97
90
80
72
52
34
15
30
44
56
50
46
40
48
56
37
56
57
45

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
Light Rain
Light Rain
Light Rain
None
None

Precipitation Probability (%)

1
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3
10
44
66
81
71
53
15

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.4
0.6
0.4
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

8
8
9
9
10
10
11
16
16
16
16
16
17
13
13
13
12
11
11
9
10
10
9
9

Dew Point (°C)

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

Relative Humidity (%)

71
64
60
54
51
48
45
45
44
44
48
52
57
58
62
64
66
68
72
75
77
78
78
76

Pressure (mb)

1020
1020
1020
1020
1020
1019
1019
1019
1018
1018
1018
1018
1018
1018
1018
1019
1019
1019
1019
1019
1019
1019
1019
1019

Ozone (du)

360
359
359
358
358
357
357
357
357
358
361
364
367
369
370
372
373
375
376
375
373
372
371
371

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

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)

91
90
90
85
80
77
72
69
66
58
53
49
53
63
70
70
70
75

Low Clouds (% Sky Obscured)

55
65
68
61
58
55
56
58
60
43
27
5
6
7
12
9
9
20

Medium Clouds (% Sky Obscured)

27
27
24
25
31
33
34
32
38
44
53
49
53
63
70
70
70
75

High Clouds (% Sky Obscured)

45
45
40
40
50
65
72
69
66
58
53
49
53
63
65
60
55
40

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 (%)

11
5
1
6
7
7
9
10
6
16
21
6
12
11
0
2
1
0

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

9
9
9
9
10
10
11
14
14
13
13
14
14
10
10
10
9
10

Dew Point (°C)

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

Relative Humidity (%)

74
67
60
54
51
48
45
45
44
44
49
55
61
62
63
64
64
64

Pressure (mb)

1019
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1021
1021
1021
1021
1021
1021
1021

Ozone (du)

370
370
370
370
371
371
372
373
373
374
374
375
375
375
376
376
377
377

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

Generated: 13/04/26 08:23:44. Forecast: 13/04/26 to 19/04/26. Timezone: UTC+2.00