Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 15

Waning Gibbous 80%

23:57

11:04

04 Bad
05 Bad
06 Bad
07 OK
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 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad

Sun - Rise: 05:47, Set: 21:50, Transit: 13:48. Moon - Rise: 23:57, Set: 11:04. Civil Dark: 22:33 - 05:04. Nautical Dark: 23:34 - 04:02. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

93
90
56
39
44
46
50
78
81
100
100
100
96
84
90
74
62
100
100
100
100
100
99
69

Low Clouds (% Sky Obscured)

17
30
30
39
44
40
40
51
29
27
8
3
11
2
0
13
0
0
0
21
49
29
40
45

Medium Clouds (% Sky Obscured)

49
21
0
0
0
0
0
26
47
80
65
65
65
54
50
32
31
16
30
29
33
43
23
16

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
10
10
10
10
0
0
0
0
0
83
100
100
100
52
97
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 (%)

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
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
3
12
8

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

Chance of Frost

Temperature (°C)

16
15
15
14
15
17
18
19
20
21
21
21
20
21
21
20
20
19
18
17
17
17
16
16

Feels Like (°C)

14
14
13
15
15
16
17
17
18
16
17
17
16
17
17
16
17
18
16
14
14
13
13
13

Dew Point (°C)

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

Relative Humidity (%)

77
77
76
79
75
67
53
44
38
36
35
37
33
36
34
38
42
47
52
58
63
67
72
75

Pressure (mb)

1018
1018
1018
1019
1019
1019
1019
1019
1019
1018
1018
1018
1018
1017
1017
1017
1017
1017
1017
1016
1016
1016
1015
1015

Ozone (du)

336
344
355
353
350
347
346
341
335
336
338
340
341
341
339
339
340
340
340
336
335
334
336
337

Wednesday 16

Waning Gibbous 71%

00:10

12:26

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 OK
21 Good
22 OK
23 OK
00 OK
01 Good
02 OK
03 Good

Sun - Rise: 05:48, Set: 21:49, Transit: 13:48. Moon - Rise: 00:10, Set: 12:26. Civil Dark: 22:32 - 05:05. Nautical Dark: 23:33 - 04:04. Astro Dark: N/A - 02:07

Total Clouds (% Sky Obscured)

82
70
73
82
75
78
75
72
80
68
53
67
80
92
67
57
33
18
37
30
23
12
42
1

Low Clouds (% Sky Obscured)

68
58
71
61
54
55
50
49
45
44
39
45
49
43
49
36
31
0
10
30
21
0
34
0

Medium Clouds (% Sky Obscured)

18
13
0
22
19
15
17
10
12
5
3
7
15
29
22
23
5
13
21
0
0
0
0
0

High Clouds (% Sky Obscured)

1
0
0
0
0
4
0
2
4
0
1
2
5
2
3
4
6
0
0
0
2
4
5
0

ISS Passover

Visibility (miles)

9
9
6
7
9
9
9
8
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 (%)

13
33
42
34
30
29
35
30
8
1
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)

12
12
12
13
14
15
16
16
17
18
18
17
17
16
16
14
12
10
7
6
3
2
2
3

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

13
13
13
14
14
15
15
16
16
16
18
18
19
18
18
18
18
18
17
16
17
16
15
13

Dew Point (°C)

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

Relative Humidity (%)

79
82
86
89
87
78
65
57
46
51
44
42
42
41
40
41
47
55
63
72
80
83
83
84

Pressure (mb)

1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1015
1015
1015
1015
1015
1015
1016
1016
1017
1017
1017
1018
1018
1017

Ozone (du)

338
338
340
342
340
338
335
332
328
326
324
322
321
322
321
320
318
315
310
308
308
308
308
307

Thursday 17

Waning Gibbous 60%

00:24

13:49

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

Sun - Rise: 05:49, Set: 21:48, Transit: 13:48. Moon - Rise: 00:24, Set: 13:49. Civil Dark: 22:30 - 05:06. Nautical Dark: 23:31 - 04:06. Astro Dark: 01:29 - 02:18

Total Clouds (% Sky Obscured)

35
58
55
39
48
61
62
66
56
68
69
47
63
92
60
56
26
33
40
49
60
68
91
91

Low Clouds (% Sky Obscured)

32
50
54
38
40
51
41
49
50
46
7
11
24
13
25
17
12
6
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

0
0
0
0
0
2
0
0
0
0
15
9
24
60
2
27
4
2
0
1
3
3
6
11

High Clouds (% Sky Obscured)

1
0
0
1
5
10
15
14
11
25
20
8
1
4
5
14
21
33
40
49
60
64
86
89

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)

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

Chance of Frost

Temperature (°C)

13
12
12
12
15
17
19
20
22
23
24
25
26
26
26
25
24
22
20
18
18
17
16
15

Feels Like (°C)

14
13
11
14
16
17
18
20
22
23
23
24
25
26
24
23
21
22
20
19
18
18
16
14

Dew Point (°C)

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

Relative Humidity (%)

84
86
87
83
76
72
64
56
48
42
39
35
32
30
29
32
38
45
51
53
54
55
55
55

Pressure (mb)

1017
1018
1018
1018
1018
1018
1018
1018
1018
1018
1017
1017
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016

Ozone (du)

306
305
304
304
305
308
309
309
310
310
307
306
305
303
302
302
301
301
302
302
302
302
302
304

Friday 18

Third Quarter 48%

00:41

15:15

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
03 Bad

Sun - Rise: 05:50, Set: 21:47, Transit: 13:48. Moon - Rise: 00:41, Set: 15:15. Civil Dark: 22:29 - 05:08. Nautical Dark: 23:29 - 04:08. Astro Dark: 01:19 - 02:26

Total Clouds (% Sky Obscured)

78
77
95
100
100
99
95
79
57
53
53
51
49
59
65
72
67
65
66
61
55
55
67
84

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
2
3
4
6
8
9
7
11
20
24
37
40
33
1
16
2
25

Medium Clouds (% Sky Obscured)

15
11
10
10
10
12
12
20
23
53
53
51
48
58
65
64
58
65
66
51
26
10
21
61

High Clouds (% Sky Obscured)

77
77
94
100
100
99
95
69
37
6
5
5
4
3
6
5
0
0
1
6
11
14
40
66

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
8
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
1
1
1
16
4
21
22
3
17
29
16
21
47

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

Chance of Frost

Temperature (°C)

15
14
15
16
17
19
22
24
26
27
28
29
29
29
29
28
28
26
24
23
23
20
20
19

Feels Like (°C)

14
15
16
15
16
18
21
24
26
28
27
28
28
28
28
28
27
25
23
22
21
19
18
17

Dew Point (°C)

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

Relative Humidity (%)

57
58
59
57
51
44
39
36
34
33
32
30
29
29
29
33
37
39
49
49
47
58
58
59

Pressure (mb)

1015
1015
1015
1015
1015
1015
1015
1015
1014
1014
1013
1013
1012
1011
1011
1011
1010
1010
1011
1010
1010
1010
1010
1009

Ozone (du)

306
308
310
312
312
316
316
316
316
317
318
320
319
319
321
323
328
326
325
324
323
324
325
324

Saturday 19

Waning Crescent 36%

01:04

16:44

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
03 Bad

Sun - Rise: 05:52, Set: 21:45, Transit: 13:48. Moon - Rise: 01:04, Set: 16:44. Civil Dark: 22:28 - 05:09. Nautical Dark: 23:27 - 04:10. Astro Dark: 01:11 - 02:33

Total Clouds (% Sky Obscured)

98
99
99
100
100
100
100
98
96
94
96
98
100
100
100
100
97
94
91
80
67
53
53
50

Low Clouds (% Sky Obscured)

24
35
35
33
35
35
35
30
30
30
37
44
51
52
49
48
39
29
20
26
30
33
37
42

Medium Clouds (% Sky Obscured)

65
70
79
88
92
95
100
91
84
74
69
66
65
74
81
84
79
74
69
45
24
2
1
1

High Clouds (% Sky Obscured)

94
96
98
100
100
100
98
92
84
75
83
91
100
100
100
100
97
94
91
67
33
0
3
6

ISS Passover

Visibility (miles)

3
9
9
9
9
9
9
7
3
4
4
5
6
7
6
4
3
5
7
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

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

Precipitation Probability (%)

59
27
53
39
40
38
66
95
95
84
91
87
78
89
93
92
79
62
47
31
28
28
20
15

Precipitation Amount (mm)

0.3
0
0.2
0
0
0
0
0.8
0.6
0.4
0.5
0.5
0.4
0.4
0.4
0.4
0.4
0.2
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

19
18
18
18
18
19
19
20
20
20
20
20
20
20
20
20
20
19
18
17
16
15
14
14

Feels Like (°C)

19
18
18
18
18
20
20
21
21
21
21
21
21
21
21
21
21
19
19
18
17
17
17
13

Dew Point (°C)

13
14
15
16
17
17
18
18
18
18
18
18
18
18
18
17
17
17
16
16
14
13
12
12

Relative Humidity (%)

68
76
81
88
90
91
91
89
91
91
89
86
85
84
85
85
86
88
90
92
89
86
86
86

Pressure (mb)

1009
1008
1008
1008
1008
1008
1008
1008
1008
1007
1007
1007
1007
1007
1007
1007
1007
1007
1008
1008
1008
1008
1009
1009

Ozone (du)

321
323
326
327
327
328
330
332
333
334
334
336
339
341
342
343
344
344
345
345
343
340
338
336

Sunday 20

Waning Crescent 25%

01:37

18:13

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
03 Bad

Sun - Rise: 05:53, Set: 21:44, Transit: 13:49. Moon - Rise: 01:37, Set: 18:13. Civil Dark: 22:26 - 05:11. Nautical Dark: 23:25 - 04:12. Astro Dark: 01:04 - 02:39

Total Clouds (% Sky Obscured)

52
60
72
84
85
86
87
83
80
78
85
93
100
95
91
89
87
83
83
81
76
74
85
92

Low Clouds (% Sky Obscured)

46
49
48
51
45
38
30
29
33
42
58
73
82
71
60
42
29
16
9
15
26
37
47
59

Medium Clouds (% Sky Obscured)

0
2
5
7
9
10
12
36
59
78
85
93
100
88
77
65
51
39
30
24
21
20
25
31

High Clouds (% Sky Obscured)

8
14
37
53
60
60
47
25
18
19
44
72
100
89
80
71
79
83
83
81
76
74
85
88

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
6
4
6
8
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
Very Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

0
1
0
0
0
0
0
9
13
14
17
18
19
16
16
11
51
82
95
95
89
68
74
82

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.7
0.9
0.6
0.3
0.4
0.5

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

13
13
13
13
13
15
16
16
17
18
19
22
21
20
19
18
18
20
20
20
20
19
19
16

Dew Point (°C)

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

Relative Humidity (%)

87
89
86
85
82
72
62
53
51
47
45
53
62
74
70
66
63
71
82
93
92
92
90
92

Pressure (mb)

1009
1009
1009
1009
1009
1009
1009
1009
1009
1009
1008
1008
1008
1008
1007
1007
1006
1006
1006
1007
1006
1006
1006
1006

Ozone (du)

335
333
333
332
331
331
332
332
333
335
336
337
337
338
339
340
342
346
350
354
355
356
356
357

Monday 21

Waning Crescent 15%

02:25

19:34

Sun - Rise: 05:54, Set: 21:43, Transit: 13:49. Moon - Rise: 02:25, Set: 19:34. Civil Dark: 22:25 - 05:12. Nautical Dark: 23:23 - 04:14. Astro Dark: 00:58 - 02:45

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: 15/07/25 04:24:06. Forecast: 15/07/25 to 21/07/25. Timezone: UTC+2.00