Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 13

Third Quarter 56%

23:27

16:06

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

Sun - Rise: 08:03, Set: 18:53, Transit: 13:28. Moon - Rise: 23:27, Set: 16:06. Civil Dark: 19:26 - 07:30. Nautical Dark: 20:04 - 06:52. Astro Dark: 20:43 - 06:14

Total Clouds (% Sky Obscured)

98
98
91
82
99
100
98
96
97
99
93
84
91
93
87
68
56
43
47
49
8
5
46
39

Low Clouds (% Sky Obscured)

98
90
91
82
97
100
96
92
90
94
91
79
86
80
69
55
56
43
47
49
8
5
46
39

Medium Clouds (% Sky Obscured)

21
17
33
43
47
50
42
42
46
34
28
26
37
51
36
22
1
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
1
1
0
0
1
9
63
19
10
42
47
9
10
5
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
1
2
12
12
0
1
3
1
4
4
4
3
0
2
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
5
5
5
6
6
7
7
8
8
9
9
9
8
7
8
9
8
7
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

84
89
93
95
93
89
90
92
93
95
93
90
87
82
79
76
73
71
73
78
71
71
71
71

Pressure (mb)

1029
1029
1029
1029
1028
1028
1028
1028
1027
1028
1028
1028
1028
1028
1028
1027
1027
1027
1027
1027
1027
1027
1027
1027

Ozone (du)

261
261
260
262
263
264
265
267
267
266
266
267
266
267
267
267
269
269
267
265
263
262
261
261

Tuesday 14

Waning Crescent 45%

No Rise

16:37

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: 08:05, Set: 18:51, Transit: 13:28. Moon - Rise: No Rise, Set: 16:37. Civil Dark: 19:24 - 07:32. Nautical Dark: 20:02 - 06:54. Astro Dark: 20:41 - 06:15

Total Clouds (% Sky Obscured)

64
72
75
80
90
90
79
74
62
79
73
69
69
60
78
63
65
55
73
85
73
98
97
100

Low Clouds (% Sky Obscured)

64
68
75
80
90
90
79
74
62
79
70
66
63
58
76
62
64
55
73
85
73
96
93
100

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
5
7
0

High Clouds (% Sky Obscured)

0
16
4
1
1
0
0
1
0
0
0
0
0
0
1
1
1
1
2
1
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
2
1
0
0
0
0
1
2
3
3
11
10
3
2
0
0
1
2

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

72
68
67
72
75
77
77
79
77
76
75
75
74
75
74
73
72
71
70
70
68
65
68
70

Pressure (mb)

1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1026
1026
1026
1026
1026
1026
1027
1027
1027

Ozone (du)

260
260
259
259
258
257
256
256
257
259
261
262
262
263
263
264
265
267
268
271
269
269
270
268

Wednesday 15

Waning Crescent 34%

00:50

16:58

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

Sun - Rise: 08:06, Set: 18:49, Transit: 13:28. Moon - Rise: 00:50, Set: 16:58. Civil Dark: 19:22 - 07:33. Nautical Dark: 20:00 - 06:55. Astro Dark: 20:38 - 06:17

Total Clouds (% Sky Obscured)

100
93
100
88
94
73
68
85
81
80
90
83
69
41
48
45
54
56
45
38
38
40
39
47

Low Clouds (% Sky Obscured)

100
91
100
88
94
73
68
83
80
77
88
79
60
41
48
45
54
56
45
38
38
40
39
47

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
2
0
0
0
0
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
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 (%)

4
6
6
2
2
2
3
1
0
2
1
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
3
3
3
2
3
3
4
5
6
7
7
8
9
9
9
9
8
7
7
6
6
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

70
74
75
77
79
80
80
80
81
83
77
72
61
54
49
46
46
47
52
60
64
68
71
75

Pressure (mb)

1027
1027
1027
1027
1026
1026
1026
1026
1026
1026
1027
1027
1027
1027
1026
1025
1025
1025
1025
1025
1025
1026
1026
1026

Ozone (du)

267
267
266
264
263
263
263
266
267
267
268
269
271
272
272
272
274
276
276
274
274
275
276
277

Thursday 16

Waning Crescent 24%

02:11

17:14

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: 08:08, Set: 18:47, Transit: 13:28. Moon - Rise: 02:11, Set: 17:14. Civil Dark: 19:20 - 07:35. Nautical Dark: 19:58 - 06:57. Astro Dark: 20:36 - 06:19

Total Clouds (% Sky Obscured)

56
62
70
67
63
62
69
68
67
65
55
50
54
63
64
70
59
61
72
82
83
80
80
83

Low Clouds (% Sky Obscured)

56
62
70
67
63
62
69
68
67
65
55
50
54
63
63
63
59
61
72
81
80
80
79
80

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
0
2

High 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

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
7
7
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
1
1
0
2
1
0
0
0
0
0
0
0
0
0
0
2
3
2
3
3
1
2

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

77
80
83
84
87
90
95
95
96
95
84
75
65
60
57
55
57
55
57
59
58
58
63
67

Pressure (mb)

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

Ozone (du)

276
276
275
275
274
273
273
274
273
273
274
274
274
274
275
276
277
278
277
276
276
277
277
276

Friday 17

Waning Crescent 16%

03:28

17:27

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 OK
23 OK

Sun - Rise: 08:10, Set: 18:45, Transit: 13:27. Moon - Rise: 03:28, Set: 17:27. Civil Dark: 19:18 - 07:36. Nautical Dark: 19:56 - 06:58. Astro Dark: 20:34 - 06:20

Total Clouds (% Sky Obscured)

85
88
83
78
70
73
76
83
85
88
91
85
79
72
67
60
53
58
60
69
58
54
45
39

Low Clouds (% Sky Obscured)

81
82
76
67
60
65
70
75
78
82
85
78
73
67
61
55
49
50
44
42
41
37
36
36

Medium Clouds (% Sky Obscured)

4
5
10
13
17
20
21
20
21
21
22
19
11
8
6
3
0
5
7
10
5
2
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
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 (%)

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

Chance of Frost

Temperature (°C)

12
12
12
12
12
11
11
11
11
12
12
13
13
14
15
15
15
15
14
14
13
13
12
11

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

72
73
75
76
77
79
79
79
79
76
75
70
64
59
57
56
55
54
54
54
55
58
62
65

Pressure (mb)

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

Ozone (du)

275
274
274
274
274
273
274
274
275
274
274
274
274
275
275
275
275
275
276
276
277
277
277
277

Saturday 18

Waning Crescent 9%

04:42

17:38

00 OK
01 OK
02 OK
03 OK
04 Good
05 OK
06 OK
07 OK
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: 08:11, Set: 18:43, Transit: 13:27. Moon - Rise: 04:42, Set: 17:38. Civil Dark: 19:16 - 07:38. Nautical Dark: 19:54 - 07:00. Astro Dark: 20:32 - 06:22

Total Clouds (% Sky Obscured)

37
37
30
23
14
27
38
48
57
65
71
69
68
68
67
67
64
75
87
100
100
100
100
100

Low Clouds (% Sky Obscured)

35
31
21
10
0
10
20
32
21
11
0
0
1
1
0
0
0
1
3
6
5
3
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
1
3
9
9

High Clouds (% Sky Obscured)

0
0
0
0
4
13
28
29
48
64
71
60
43
29
31
37
43
64
82
100
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
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
4
4
4
4
5
5
5
6
6
7
7
8
7
8
8
8
7
7
7
7
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

67
69
72
74
75
78
79
79
81
73
67
59
56
52
48
47
47
45
52
59
67
72
76
81

Pressure (mb)

1022
1022
1022
1022
1022
1021
1021
1021
1021
1021
1021
1021
1020
1019
1018
1018
1017
1016
1015
1015
1015
1014
1014
1013

Ozone (du)

277
276
276
276
277
277
277
277
277
278
278
279
280
282
283
282
282
282
282
282
282
282
282
282

Sunday 19

Waning Crescent 4%

05:54

17:48

Sun - Rise: 08:13, Set: 18:41, Transit: 13:27. Moon - Rise: 05:54, Set: 17:48. Civil Dark: 19:14 - 07:40. Nautical Dark: 19:52 - 07:01. Astro Dark: 20:31 - 06:23

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: 13/10/25 00:11:56. Forecast: 13/10/25 to 19/10/25. Timezone: UTC+2.00