Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 24

Waxing Gibbous 94%

18:44

04:38

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

Sun - Rise: 07:32, Set: 19:36, Transit: 13:34. Moon - Rise: 18:44, Set: 04:38. Civil Dark: 20:08 - 07:00. Nautical Dark: 20:47 - 06:21. Astro Dark: 21:27 - 05:41

Total Clouds (% Sky Obscured)

90
91
89
95
100
100
100
100
100
94
100
92
95
93
100
100
97
99
100
100
100
100
100
97

Low Clouds (% Sky Obscured)

32
33
37
32
19
18
24
28
28
26
32
32
37
34
36
33
30
20
16
2
0
0
0
1

Medium Clouds (% Sky Obscured)

15
16
1
0
0
0
6
27
16
10
43
36
40
27
58
28
21
44
46
38
6
2
9
40

High Clouds (% Sky Obscured)

79
69
89
95
100
100
100
100
98
77
100
65
53
65
100
100
90
97
100
100
100
100
100
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
6
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
5
4
5
4
4
3
3
3
4
5
4
4
4
4
4
4
4
4
4
4
4
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

86
90
92
92
89
87
90
89
87
79
68
63
57
50
45
42
40
40
42
48
51
53
55
57

Pressure (mb)

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

Ozone (du)

296
295
294
294
293
292
291
291
290
290
291
291
290
291
289
288
288
286
286
285
285
284
283
282

Friday 25

Waxing Gibbous 96%

18:57

05:54

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

Sun - Rise: 07:34, Set: 19:33, Transit: 13:34. Moon - Rise: 18:57, Set: 05:54. Civil Dark: 20:06 - 07:01. Nautical Dark: 20:45 - 06:23. Astro Dark: 21:25 - 05:43

Total Clouds (% Sky Obscured)

100
82
60
75
66
73
70
61
28
50
4
4
3
2
1
3
1
0
0
0
0
0
0
35

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)

12
3
3
3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

100
82
60
75
66
73
70
61
26
49
3
4
3
2
1
3
1
0
0
0
0
0
0
28

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)

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

Chance of Frost

Temperature (°C)

12
12
11
11
10
10
9
9
9
11
14
17
19
21
22
23
24
24
24
22
20
18
17
16

Feels Like (°C)

10
9
9
8
8
8
8
7
7
9
14
17
19
20
22
23
24
24
24
22
19
17
15
15

Dew Point (°C)

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

Relative Humidity (%)

58
59
59
60
61
62
63
63
64
59
50
44
38
33
29
27
26
26
31
36
37
38
37
38

Pressure (mb)

1024
1024
1024
1023
1023
1023
1023
1022
1022
1022
1022
1022
1022
1021
1021
1020
1019
1019
1019
1018
1018
1019
1018
1018

Ozone (du)

281
280
280
279
279
278
278
279
279
278
278
278
278
278
279
281
281
282
282
282
282
283
285
285

Saturday 26

Full Moon 99%

19:09

07:12

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

Sun - Rise: 07:35, Set: 19:31, Transit: 13:33. Moon - Rise: 19:09, Set: 07:12. Civil Dark: 20:04 - 07:03. Nautical Dark: 20:42 - 06:24. Astro Dark: 21:22 - 05:44

Total Clouds (% Sky Obscured)

65
60
49
98
81
77
88
97
86
88
93
84
87
92
91
89
92
81
96
99
100
100
100
100

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
15
7
12
14
24
23
30
37
43
49
56
54
57
55
51
47
43
36

Medium Clouds (% Sky Obscured)

6
19
31
28
27
28
29
28
42
49
56
59
57
81
70
57
50
44
60
97
93
46
37
29

High Clouds (% Sky Obscured)

55
50
20
97
68
56
57
94
36
43
79
20
32
12
43
66
59
20
65
69
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
1
0
0
0
0
0
0
0
1
2
3
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
6
6
7
7
7
7
7
6
5
5
5
7
8
8
8
8
9
10
8
7
6
5
4

Chance of Frost

Temperature (°C)

16
16
16
16
16
16
16
15
14
15
17
18
20
21
22
21
21
20
19
19
18
17
16
16

Feels Like (°C)

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

Dew Point (°C)

2
2
2
2
1
2
1
1
0
2
4
10
13
13
13
12
11
12
13
14
13
13
13
13

Relative Humidity (%)

39
39
39
38
37
38
38
37
38
41
43
58
64
60
57
54
55
58
67
72
76
78
81
83

Pressure (mb)

1018
1017
1017
1017
1017
1017
1017
1018
1018
1019
1019
1020
1020
1020
1020
1020
1020
1020
1021
1021
1021
1021
1021
1021

Ozone (du)

285
285
284
282
280
279
281
280
281
282
280
279
277
278
279
281
282
284
284
285
285
285
286
285

Sunday 27

Waning Gibbous 100%

19:23

08:32

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

Sun - Rise: 07:37, Set: 19:29, Transit: 13:33. Moon - Rise: 19:23, Set: 08:32. Civil Dark: 20:02 - 07:04. Nautical Dark: 20:40 - 06:26. Astro Dark: 21:20 - 05:46

Total Clouds (% Sky Obscured)

100
97
73
59
58
61
56
53
41
30
22
15
15
21
58
80
99
96
99
100
96
93
88
92

Low Clouds (% Sky Obscured)

30
25
20
18
13
19
23
30
22
11
0
1
2
4
12
52
50
28
24
51
29
21
18
15

Medium Clouds (% Sky Obscured)

19
13
15
24
34
23
13
3
9
5
22
15
15
17
38
42
43
44
63
90
67
69
65
92

High Clouds (% Sky Obscured)

100
96
56
35
24
19
12
2
2
15
21
7
6
21
42
75
54
70
99
100
81
58
30
26

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
1
6
8
9
9
3
5

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

Chance of Frost

Temperature (°C)

16
15
15
14
14
13
13
13
12
14
16
19
20
22
23
24
24
25
23
22
21
20
19
19

Feels Like (°C)

15
15
15
15
15
15
15
14
14
16
17
18
20
22
23
23
23
24
23
22
21
20
19
19

Dew Point (°C)

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

Relative Humidity (%)

85
86
89
89
90
92
92
90
90
83
73
65
58
50
43
39
42
47
50
57
57
59
62
65

Pressure (mb)

1021
1021
1021
1020
1020
1019
1019
1019
1019
1019
1018
1018
1018
1017
1017
1016
1016
1015
1015
1015
1016
1016
1016
1016

Ozone (du)

285
285
284
283
284
285
283
283
283
282
280
280
280
279
280
279
279
277
276
275
277
278
277
279

Monday 28

Waning Gibbous 98%

19:40

09:55

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

Sun - Rise: 07:39, Set: 19:27, Transit: 13:33. Moon - Rise: 19:40, Set: 09:55. Civil Dark: 19:59 - 07:06. Nautical Dark: 20:38 - 06:27. Astro Dark: 21:17 - 05:48

Total Clouds (% Sky Obscured)

90
96
94
97
96
97
98
100
100
100
100
100
100
100
100
100
100
99
99
98
99
99
100
100

Low Clouds (% Sky Obscured)

14
11
27
19
57
79
80
81
83
84
85
82
30
45
53
61
70
60
46
34
34
32
33
36

Medium Clouds (% Sky Obscured)

71
29
57
84
67
89
83
80
80
81
83
85
74
78
76
74
70
53
43
42
54
71
82
76

High Clouds (% Sky Obscured)

34
65
61
78
80
85
93
100
100
97
100
100
100
100
100
100
100
95
93
95
90
93
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 (%)

5
3
13
17
28
21
22
19
21
21
18
21
23
12
41
36
17
22
18
11
12
10
9
14

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

Chance of Frost

Temperature (°C)

18
18
17
17
17
16
16
16
16
17
18
19
20
21
22
22
22
22
21
20
19
18
18
17

Feels Like (°C)

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

Dew Point (°C)

11
12
12
12
12
12
11
11
11
11
12
13
13
12
12
12
13
14
14
14
14
14
14
14

Relative Humidity (%)

63
68
72
73
74
75
72
71
71
68
69
69
67
55
52
54
56
58
64
69
75
76
77
78

Pressure (mb)

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

Ozone (du)

280
280
281
280
281
282
283
283
283
282
281
281
281
282
283
284
285
286
288
289
290
291
292
293

Tuesday 29

Waning Gibbous 93%

20:02

11:21

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
13 OK
14 OK
15 OK
16 OK
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad

Sun - Rise: 07:40, Set: 19:24, Transit: 13:32. Moon - Rise: 20:02, Set: 11:21. Civil Dark: 19:57 - 07:07. Nautical Dark: 20:35 - 06:29. Astro Dark: 21:15 - 05:50

Total Clouds (% Sky Obscured)

100
100
100
100
100
97
95
93
87
86
85
73
57
39
33
29
22
50
69
86
79
77
79
77

Low Clouds (% Sky Obscured)

34
32
24
15
6
5
4
6
4
3
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

66
49
46
46
46
39
36
36
31
29
26
23
22
18
15
10
5
15
22
30
14
4
0
27

High Clouds (% Sky Obscured)

100
100
100
100
100
97
93
86
77
63
54
49
48
39
33
29
22
50
69
86
79
77
79
77

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 (%)

14
4
11
9
1
3
0
0
0
0
0
0
0
0
0
0
0
4
6
1
0
0
0
17

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

Chance of Frost

Temperature (°C)

17
17
17
16
16
16
16
16
16
18
21
23
25
26
28
29
29
29
28
26
24
23
23
22

Feels Like (°C)

17
16
17
15
15
15
15
15
15
16
17
18
19
20
21
27
26
25
26
26
25
20
20
20

Dew Point (°C)

14
14
14
14
14
14
13
12
11
11
12
11
12
12
13
14
13
13
13
12
11
9
7
6

Relative Humidity (%)

79
82
86
86
86
86
81
77
72
63
56
48
44
41
39
39
38
36
39
41
43
40
36
33

Pressure (mb)

1017
1017
1017
1016
1016
1015
1015
1015
1015
1015
1015
1015
1014
1014
1014
1013
1013
1012
1012
1012
1012
1012
1012
1012

Ozone (du)

294
294
295
295
294
294
293
293
292
290
288
286
286
286
285
284
283
282
282
282
282
281
281
281

Wednesday 30

Waning Gibbous 86%

20:32

12:48

Sun - Rise: 07:42, Set: 19:22, Transit: 13:32. Moon - Rise: 20:32, Set: 12:48. Civil Dark: 19:55 - 07:09. Nautical Dark: 20:33 - 06:31. Astro Dark: 21:12 - 05:52

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: 24/09/26 00:25:36. Forecast: 24/09/26 to 30/09/26. Timezone: UTC+2.00