Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 20

Waxing Gibbous 68%

17:27

00:54

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 OK
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad

Sun - Rise: 07:28, Set: 19:45, Transit: 13:35. Moon - Rise: 17:27, Set: 00:54. Civil Dark: 20:18 - 06:55. Nautical Dark: 20:57 - 06:16. Astro Dark: 21:37 - 05:35

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
98
100
89
74
98
93
100
100
98
91
99
100
35
63
70
77
90
94

Low Clouds (% Sky Obscured)

86
80
82
79
76
42
32
30
30
18
26
19
13
8
4
1
1
2
6
11
22
25
26
36

Medium Clouds (% Sky Obscured)

70
75
73
89
93
100
9
0
0
0
0
0
0
0
0
0
0
4
7
41
5
5
16
20

High Clouds (% Sky Obscured)

98
100
49
30
100
100
42
100
88
74
94
74
100
100
98
91
99
99
9
26
20
25
51
49

ISS Passover

Visibility (miles)

4
2
3
8
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

Light Rain
Light Rain
Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

95
83
55
33
13
3
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

1.4
1.6
1.6
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)

10
12
10
11
11
10
12
12
11
10
8
6
4
3
3
3
3
3
4
4
4
4
4
4

Chance of Frost

Temperature (°C)

17
17
17
17
18
19
19
18
18
17
16
15
14
13
12
11
11
10
10
10
9
9
9
10

Feels Like (°C)

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

Dew Point (°C)

16
16
16
16
16
15
11
7
6
7
7
8
7
6
6
5
5
5
4
4
5
5
5
5

Relative Humidity (%)

95
96
93
90
86
78
60
48
46
49
55
61
63
63
64
65
67
67
68
69
72
73
74
72

Pressure (mb)

1023
1023
1024
1025
1025
1026
1026
1026
1027
1028
1029
1030
1030
1031
1031
1031
1031
1032
1031
1031
1031
1031
1032
1032

Ozone (du)

282
281
282
283
284
286
289
289
288
291
290
291
293
292
289
286
283
281
282
281
278
276
277
278

Monday 21

Waxing Gibbous 77%

17:54

02:07

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

Sun - Rise: 07:29, Set: 19:43, Transit: 13:35. Moon - Rise: 17:54, Set: 02:07. Civil Dark: 20:15 - 06:56. Nautical Dark: 20:54 - 06:18. Astro Dark: 21:35 - 05:37

Total Clouds (% Sky Obscured)

90
93
85
53
67
60
50
40
41
39
29
29
36
28
47
45
52
51
50
47
46
61
71
78

Low Clouds (% Sky Obscured)

27
0
6
13
17
21
17
19
16
19
12
14
14
17
32
27
38
39
50
47
46
61
71
78

Medium Clouds (% Sky Obscured)

21
23
22
24
23
26
20
12
10
15
7
15
22
12
15
3
3
7
0
2
0
0
1
0

High Clouds (% Sky Obscured)

57
79
63
17
45
27
13
5
3
0
9
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
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
6
6
6
5
5
5
6
6
6
5
5
4
4
3
1
1
1
1
2
2
2
2
3

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

9
11
13
15
18
19
19
19
19
18
17
15
14
14
14
15
15
15
15
14
14
14
13
13

Dew Point (°C)

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

Relative Humidity (%)

67
60
54
51
46
42
39
37
36
39
46
51
55
58
60
61
62
61
61
62
61
63
63
62

Pressure (mb)

1033
1033
1033
1033
1032
1032
1031
1031
1031
1030
1030
1030
1031
1031
1031
1031
1030
1030
1030
1029
1029
1029
1029
1029

Ozone (du)

278
278
277
276
275
275
274
273
272
271
270
271
271
270
271
270
270
270
270
270
269
269
269
269

Tuesday 22

Waxing Gibbous 85%

18:14

03:22

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

Sun - Rise: 07:31, Set: 19:40, Transit: 13:35. Moon - Rise: 18:14, Set: 03:22. Civil Dark: 20:13 - 06:58. Nautical Dark: 20:52 - 06:19. Astro Dark: 21:32 - 05:39

Total Clouds (% Sky Obscured)

89
89
77
89
95
95
83
71
53
40
35
32
30
30
39
37
18
23
35
52
61
77
86
85

Low Clouds (% Sky Obscured)

86
87
74
83
90
89
79
64
42
29
25
27
25
29
34
28
9
11
19
24
20
19
18
13

Medium Clouds (% Sky Obscured)

0
0
1
3
6
6
7
6
4
2
0
0
0
0
1
2
4
4
4
5
3
2
0
2

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
1
0
1
1
3
4
0
4
10
17
33
61
83
78

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

57
54
53
53
55
57
57
56
57
59
68
74
79
83
83
86
86
87
89
89
90
89
89
89

Pressure (mb)

1030
1030
1030
1030
1029
1029
1029
1028
1028
1027
1027
1027
1027
1027
1027
1027
1027
1026
1026
1025
1025
1025
1025
1025

Ozone (du)

270
270
270
270
270
269
270
271
273
273
273
273
274
274
274
275
275
275
274
274
274
274
274
274

Wednesday 23

Waxing Gibbous 92%

18:30

04:38

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 OK
03 Good
04 Good
05 OK
06 Bad
07 Bad
08 Bad

Sun - Rise: 07:32, Set: 19:38, Transit: 13:34. Moon - Rise: 18:30, Set: 04:38. Civil Dark: 20:11 - 07:00. Nautical Dark: 20:49 - 06:21. Astro Dark: 21:30 - 05:41

Total Clouds (% Sky Obscured)

87
82
61
49
100
84
100
100
99
98
97
93
89
81
82
80
69
26
15
4
37
82
100
63

Low Clouds (% Sky Obscured)

7
2
6
9
12
14
13
13
15
17
19
18
20
51
80
80
69
22
10
0
8
16
23
24

Medium Clouds (% Sky Obscured)

3
7
5
3
1
1
1
0
7
41
17
12
9
8
7
4
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

74
61
53
49
100
81
100
100
97
93
91
79
55
28
1
0
0
0
2
2
35
80
100
19

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
2
5
3
10
9
6
2
1
0
0
0
0
1

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

Chance of Frost

Temperature (°C)

15
17
19
20
21
22
22
23
23
22
21
19
19
18
18
17
16
15
14
13
12
12
12
11

Feels Like (°C)

15
16
19
21
22
22
23
22
22
22
21
20
18
18
17
16
14
13
14
13
12
11
10
9

Dew Point (°C)

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

Relative Humidity (%)

80
72
65
57
52
51
48
49
49
52
59
61
66
71
73
70
78
83
82
82
80
81
80
81

Pressure (mb)

1024
1025
1024
1024
1023
1023
1022
1021
1021
1021
1020
1020
1021
1021
1021
1022
1022
1022
1023
1023
1023
1023
1023
1024

Ozone (du)

275
276
277
276
274
274
272
272
273
274
275
278
281
284
289
290
292
294
294
295
296
295
294
294

Thursday 24

Waxing Gibbous 96%

18:44

05:54

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 OK
01 OK
02 OK
03 Good
04 Good
05 Good
06 Good
07 Good
08 OK

Sun - Rise: 07:34, Set: 19:36, Transit: 13:34. Moon - Rise: 18:44, Set: 05:54. Civil Dark: 20:08 - 07:01. Nautical Dark: 20:47 - 06:23. Astro Dark: 21:27 - 05:43

Total Clouds (% Sky Obscured)

59
57
69
79
90
77
65
58
65
70
80
77
74
66
54
47
41
24
14
5
6
8
8
22

Low Clouds (% Sky Obscured)

28
29
24
17
24
20
15
9
7
7
9
6
3
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
1
2
1
0
0
0
0
0
0
0
0
0
0
0
1
1
2
7

High Clouds (% Sky Obscured)

8
3
4
6
15
15
18
22
29
50
60
59
62
61
54
47
41
24
14
5
6
6
5
3

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 (%)

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

Chance of Frost

Temperature (°C)

12
14
15
16
17
18
19
19
20
18
17
16
15
14
13
12
12
11
11
10
10
9
9
9

Feels Like (°C)

9
10
11
12
13
13
17
17
17
18
18
18
12
12
12
11
11
11
9
9
9
9
9
8

Dew Point (°C)

7
7
7
7
6
6
6
6
6
7
8
8
8
8
7
7
7
7
7
7
7
7
7
7

Relative Humidity (%)

72
64
57
53
49
45
43
42
42
47
54
61
63
65
68
71
73
77
80
83
85
85
85
85

Pressure (mb)

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

Ozone (du)

294
293
293
292
290
289
289
288
287
287
287
287
287
287
286
286
285
284
284
284
284
283
282
281

Friday 25

Waxing Gibbous 99%

18:57

07:12

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

Sun - Rise: 07:35, Set: 19:33, Transit: 13:34. Moon - Rise: 18:57, Set: 07:12. Civil Dark: 20:06 - 07:03. Nautical Dark: 20:45 - 06:24. Astro Dark: 21:25 - 05:44

Total Clouds (% Sky Obscured)

37
46
34
21
11
21
32
42
37
30
22
27
37
48
56
66
74
68
64
59
57
56
55
49

Low Clouds (% Sky Obscured)

0
0
0
0
1
1
0
0
0
0
0
1
1
0
0
0
3
7
6
9
8
9
10
9

Medium Clouds (% Sky Obscured)

12
17
14
7
0
0
0
0
3
4
5
2
3
3
4
3
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

3
3
2
4
7
18
30
42
36
27
16
16
17
18
30
47
66
60
51
40
39
35
30
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 (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
9
12
10
8
5
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
6
7
7
8
8
8
8
7
6
5
6
7
8
8
8
8
7
6
5
5
5
5

Chance of Frost

Temperature (°C)

11
14
16
17
19
20
20
21
21
20
18
17
16
15
14
14
13
13
12
12
11
11
11
10

Feels Like (°C)

9
10
12
13
13
14
20
19
19
18
19
19
15
15
15
15
14
14
10
10
11
11
10
10

Dew Point (°C)

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

Relative Humidity (%)

76
67
60
55
50
45
45
43
43
48
53
61
64
68
73
74
76
79
79
79
79
78
77
78

Pressure (mb)

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

Ozone (du)

280
280
280
279
279
279
279
279
279
279
278
278
278
278
279
278
278
278
278
278
278
278
278
278

Saturday 26

Full Moon 100%

19:09

08:32

Sun - Rise: 07:37, Set: 19:31, Transit: 13:33. Moon - Rise: 19:09, Set: 08:32. Civil Dark: 20:04 - 07:04. Nautical Dark: 20:42 - 06:26. Astro Dark: 21:22 - 05:46

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: 20/09/26 09:28:34. Forecast: 20/09/26 to 26/09/26. Timezone: UTC+2.00