Clear Outside v1.0 - International Weather Forecasts For Astronomers

Saturday 19

Waxing Gibbous 59%

16:51

23:47

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
00 Bad

Sun - Rise: 07:24, Set: 19:47, Transit: 13:36. Moon - Rise: 16:51, Set: 23:47. Civil Dark: 20:20 - 06:52. Nautical Dark: 20:59 - 06:13. Astro Dark: 21:40 - 05:32

Total Clouds (% Sky Obscured)

97
98
96
96
93
100
100
100
100
100
100
100
100
100
98
100
100
100
100
97
100
100
100
100

Low Clouds (% Sky Obscured)

45
74
86
91
27
47
81
82
88
95
91
64
80
82
83
73
70
43
18
46
51
48
52
48

Medium Clouds (% Sky Obscured)

90
84
86
86
34
32
26
30
32
40
19
22
13
7
46
38
29
20
30
66
96
99
99
72

High Clouds (% Sky Obscured)

82
42
78
96
73
100
100
100
100
100
100
100
100
100
90
100
100
100
98
79
100
99
60
37

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 (%)

2
3
1
0
0
0
0
0
0
0
0
1
1
0
0
0
0
0
1
1
5
6
5
9

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
9
9
9
12
12
12
12
13
13
14
14
14
14
13
13
13
13
13
12
12
12
12
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

11
12
11
11
10
11
11
11
12
12
12
12
11
12
13
14
14
14
14
13
13
13
13
14

Relative Humidity (%)

74
77
75
75
71
76
79
79
79
77
73
68
60
59
62
62
63
64
66
65
69
69
71
74

Pressure (mb)

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

Ozone (du)

284
287
288
289
290
291
292
293
292
291
292
292
290
289
290
290
290
292
291
291
290
289
288
286

Sunday 20

Waxing Gibbous 68%

17:27

00:54

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
00 Bad

Sun - Rise: 07:26, Set: 19:45, Transit: 13:35. Moon - Rise: 17:27, Set: 00:54. Civil Dark: 20:18 - 06:53. Nautical Dark: 20:57 - 06:14. Astro Dark: 21:37 - 05:34

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
96
100
100
100
100
100
100
96
96
100
100
100
99
97
82
92

Low Clouds (% Sky Obscured)

52
41
89
90
90
99
100
95
92
88
86
88
83
76
48
31
16
15
18
25
16
9
12
0

Medium Clouds (% Sky Obscured)

27
90
99
100
100
100
100
100
91
72
60
65
36
0
0
0
0
0
0
2
0
3
7
6

High Clouds (% Sky Obscured)

36
100
93
100
100
90
28
100
55
100
100
100
100
100
100
90
89
100
99
100
99
97
82
92

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
4
9
3
2
5
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
Light Rain
None
Very Light Rain
Light Rain
Very Light Rain
None
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

16
59
39
65
75
68
50
65
74
64
92
78
48
7
15
5
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0
0.5
0
0.3
0.4
0.3
0
0.3
0.4
0.5
1.3
0.7
0.3
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

18
18
17
17
16
16
16
16
16
16
17
17
17
18
18
18
18
17
16
14
13
13
12
11

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

77
79
83
85
86
87
87
86
89
90
92
95
93
93
89
69
62
59
62
68
70
71
72
73

Pressure (mb)

1021
1022
1022
1022
1022
1022
1022
1023
1024
1024
1025
1025
1026
1026
1027
1027
1027
1028
1028
1029
1030
1031
1031
1031

Ozone (du)

284
284
285
286
285
284
283
283
282
282
281
280
284
285
286
287
288
289
289
291
290
289
290
289

Monday 21

Waxing Gibbous 77%

17:54

00:54

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 OK
18 Bad
19 Bad
20 Bad
21 OK
22 OK
23 OK
00 OK

Sun - Rise: 07:28, Set: 19:43, Transit: 13:35. Moon - Rise: 17:54, Set: 00:54. Civil Dark: 20:15 - 06:55. Nautical Dark: 20:54 - 06:16. Astro Dark: 21:35 - 05:35

Total Clouds (% Sky Obscured)

70
63
93
81
86
97
93
98
84
95
87
73
74
51
71
59
48
57
55
50
48
41
33
32

Low Clouds (% Sky Obscured)

0
0
7
13
0
11
5
0
3
21
21
25
32
26
29
21
25
44
36
38
41
38
23
22

Medium Clouds (% Sky Obscured)

5
9
16
21
32
24
31
18
16
9
6
8
17
11
16
27
20
16
21
17
11
2
3
3

High Clouds (% Sky Obscured)

70
63
91
41
63
89
81
96
71
88
73
52
47
19
40
7
2
2
3
3
2
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
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
2
3
3
3
3
4
4
4
5
6
6
6
6
6
6
6
7
6
5
4
3
3
2

Chance of Frost

Temperature (°C)

11
10
10
10
10
10
9
9
11
13
15
17
18
19
19
20
19
19
18
16
15
15
14
14

Feels Like (°C)

10
11
10
8
8
8
7
7
9
11
13
15
16
17
18
17
18
17
16
15
14
14
14
14

Dew Point (°C)

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

Relative Humidity (%)

76
76
77
76
77
76
77
77
72
63
56
51
46
42
39
38
37
41
48
52
56
58
61
64

Pressure (mb)

1031
1032
1031
1031
1031
1032
1032
1032
1033
1033
1033
1032
1032
1032
1031
1031
1030
1030
1030
1030
1031
1031
1031
1030

Ozone (du)

288
287
286
285
282
281
280
280
279
279
278
278
277
276
274
274
274
273
273
274
274
273
272
271

Tuesday 22

Waxing Gibbous 85%

18:14

02:07

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

Sun - Rise: 07:29, Set: 19:40, Transit: 13:35. Moon - Rise: 18:14, Set: 02:07. Civil Dark: 20:13 - 06:56. Nautical Dark: 20:52 - 06:18. Astro Dark: 21:32 - 05:37

Total Clouds (% Sky Obscured)

31
36
39
46
51
61
77
68
58
54
62
75
82
65
39
32
21
11
12
53
60
51
33
51

Low Clouds (% Sky Obscured)

22
30
36
46
50
58
77
66
55
51
61
75
82
60
23
18
12
6
12
53
60
50
18
8

Medium Clouds (% Sky Obscured)

4
0
0
0
0
0
0
1
1
3
2
1
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
2
3
3
13
41

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

Chance of Frost

Temperature (°C)

13
13
13
12
12
12
12
13
14
16
17
18
19
20
21
21
21
20
19
18
18
17
16
15

Feels Like (°C)

14
14
13
14
14
14
13
12
14
16
17
18
18
19
21
22
22
21
21
19
17
16
16
16

Dew Point (°C)

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

Relative Humidity (%)

65
69
69
71
71
72
72
69
64
60
58
57
57
57
56
55
55
58
66
71
72
72
77
82

Pressure (mb)

1030
1030
1030
1030
1030
1030
1030
1030
1030
1030
1030
1030
1029
1029
1029
1028
1028
1027
1027
1027
1027
1027
1027
1027

Ozone (du)

272
271
272
272
272
272
272
274
276
277
276
275
275
275
275
277
277
277
277
275
273
272
272
272

Wednesday 23

Waxing Gibbous 92%

18:30

03:22

01 OK
02 OK
03 OK
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

Sun - Rise: 07:31, Set: 19:38, Transit: 13:34. Moon - Rise: 18:30, Set: 03:22. Civil Dark: 20:11 - 06:58. Nautical Dark: 20:49 - 06:19. Astro Dark: 21:30 - 05:39

Total Clouds (% Sky Obscured)

38
42
48
54
63
100
100
98
96
94
96
95
95
97
98
100
86
68
49
32
25
20
45
53

Low Clouds (% Sky Obscured)

3
10
18
25
27
25
26
17
9
0
4
9
12
17
22
28
20
16
11
7
9
10
20
28

Medium Clouds (% Sky Obscured)

0
0
0
0
3
8
12
12
18
18
24
29
25
30
25
15
15
15
15
14
23
18
17
17

High Clouds (% Sky Obscured)

26
32
48
54
63
99
98
91
86
79
86
89
94
95
97
100
82
66
39
29
20
20
37
22

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
Light Rain
Light Rain
Light Rain
Light Rain
Moderate Rain
Light Rain
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
4
8
14
56
94
95
95
95
95
95
51

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.5
0.9
1.5
2.1
3.7
0.9
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

15
14
14
13
12
12
12
12
14
16
18
19
20
21
21
21
21
19
18
17
16
16
15
15

Feels Like (°C)

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

Dew Point (°C)

12
11
11
10
10
10
10
10
11
11
11
11
11
11
11
11
11
11
10
10
11
11
11
11

Relative Humidity (%)

83
83
84
84
86
86
87
86
79
71
64
58
54
51
51
51
51
56
61
66
69
73
76
76

Pressure (mb)

1027
1026
1026
1025
1025
1024
1024
1024
1024
1024
1024
1023
1023
1022
1022
1021
1020
1020
1021
1021
1021
1021
1021
1021

Ozone (du)

272
273
273
273
272
273
275
275
277
277
277
278
278
279
280
280
281
284
288
292
292
293
294
294

Thursday 24

Waxing Gibbous 96%

18:44

04:38

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 OK
17 Bad
18 Bad
19 OK
20 OK
21 OK
22 OK
23 OK
00 OK

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)

61
72
85
96
97
98
99
96
94
91
83
77
71
64
56
45
52
56
38
29
24
19
19
20

Low Clouds (% Sky Obscured)

37
41
45
48
57
64
71
77
82
86
62
36
8
5
2
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

12
15
10
6
6
3
2
2
2
1
13
27
40
28
15
2
1
1
0
2
3
3
6
6

High Clouds (% Sky Obscured)

0
8
16
24
28
36
40
38
23
21
19
17
14
13
9
2
9
9
4
4
9
17
19
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
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 (%)

25
21
14
2
6
8
9
14
15
12
10
6
2
2
0
0
4
1
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
4
4
5
6
7
6
6
7
6
6
6
6
6
6
5
5
4
4
4
4
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

79
79
84
90
96
89
83
77
72
65
60
56
51
47
45
43
42
49
57
66
68
69
73
76

Pressure (mb)

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

Ozone (du)

293
293
292
292
291
290
290
290
290
290
291
291
290
290
290
290
290
290
289
289
289
289
290
289

Friday 25

Waxing Gibbous 99%

18:57

05:54

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)

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: 19/09/26 01:37:59. Forecast: 19/09/26 to 25/09/26. Timezone: UTC+2.00