Clear Outside v1.0 - International Weather Forecasts For Astronomers

Wednesday 17

Waning Crescent 12%

03:01

18:32

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 OK
04 OK
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad

Sun - Rise: 07:23, Set: 19:51, Transit: 13:36. Moon - Rise: 03:01, Set: 18:32. Civil Dark: 20:24 - 06:50. Nautical Dark: 21:03 - 06:11. Astro Dark: 21:44 - 05:30

Total Clouds (% Sky Obscured)

100
100
100
62
53
52
56
74
64
69
75
81
69
57
36
36
40
65
48
56
65
69
84
46

Low Clouds (% Sky Obscured)

83
99
74
50
48
52
56
74
64
61
59
65
62
54
36
36
36
46
48
56
65
69
84
46

Medium Clouds (% Sky Obscured)

58
51
33
35
14
0
0
0
0
0
0
0
0
0
0
0
4
28
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 (%)

2
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

67
60
55
48
44
46
50
53
63
69
74
79
82
82
82
83
86
87
90
92
92
85
76
68

Pressure (mb)

1022
1021
1021
1020
1020
1020
1019
1019
1020
1020
1020
1020
1021
1021
1021
1021
1021
1021
1021
1021
1022
1022
1022
1022

Ozone (du)

255
253
252
251
250
250
251
252
253
257
256
257
257
256
256
256
256
255
255
255
256
256
255
256

Thursday 18

Waning Crescent 6%

04:22

18:51

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

Sun - Rise: 07:25, Set: 19:49, Transit: 13:36. Moon - Rise: 04:22, Set: 18:51. Civil Dark: 20:22 - 06:52. Nautical Dark: 21:01 - 06:13. Astro Dark: 21:42 - 05:32

Total Clouds (% Sky Obscured)

54
46
63
67
49
60
26
22
13
28
37
21
1
0
1
1
1
48
83
99
29
17
17
56

Low Clouds (% Sky Obscured)

54
46
63
63
47
57
24
22
13
28
27
17
0
0
0
0
0
0
0
0
0
0
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
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
1
0
16
7
0
0
1
1
1
42
73
81
29
16
16
56

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)

12
12
12
12
12
11
10
7
5
5
3
3
3
3
4
5
5
6
6
6
6
6
8
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

12
11
11
10
10
9
9
11
12
13
13
14
13
13
13
12
11
9
7
7
7
7
7
7

Relative Humidity (%)

60
54
50
46
44
43
44
51
60
70
78
82
83
83
85
83
79
69
60
58
56
53
45
39

Pressure (mb)

1023
1022
1022
1022
1021
1021
1021
1022
1022
1022
1023
1023
1023
1023
1023
1023
1022
1022
1022
1022
1022
1022
1022
1022

Ozone (du)

257
257
257
257
257
256
254
254
254
256
256
255
255
253
253
254
253
252
252
251
251
251
250
249

Friday 19

Waning Crescent 6%

05:39

19:06

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

Sun - Rise: 07:26, Set: 19:46, Transit: 13:36. Moon - Rise: 05:39, Set: 19:06. Civil Dark: 20:19 - 06:54. Nautical Dark: 20:58 - 06:15. Astro Dark: 21:39 - 05:34

Total Clouds (% Sky Obscured)

35
57
11
88
100
100
14
18
51
64
40
99
97
100
96
95
100
95
99
100
100
100
100
100

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
1
11
1
8

Medium Clouds (% Sky Obscured)

0
0
0
8
20
27
14
18
42
17
10
41
91
89
85
57
96
75
70
84
89
93
94
89

High Clouds (% Sky Obscured)

35
57
8
87
100
100
9
13
31
47
26
99
82
100
88
95
96
95
94
98
98
99
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
1
0
0
0
0
0
0
0
0
0
12
21
2
0
0
0
17
16
7
19

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)

10
10
11
11
11
10
9
8
8
9
9
9
9
10
10
9
8
9
10
10
11
10
10
7

Chance of Frost

Temperature (°C)

23
25
26
27
27
26
25
24
21
21
20
20
19
20
20
20
19
20
20
21
20
21
22
22

Feels Like (°C)

21
23
23
23
23
23
22
21
19
19
18
18
17
18
18
18
18
18
18
18
17
18
19
21

Dew Point (°C)

6
5
5
4
4
5
6
7
7
10
10
10
10
11
11
13
13
11
11
11
10
11
11
12

Relative Humidity (%)

32
28
25
23
23
25
29
35
40
50
53
54
55
56
55
65
66
57
54
52
50
51
51
53

Pressure (mb)

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

Ozone (du)

249
249
249
250
250
251
251
251
252
251
251
252
253
253
253
253
253
255
254
254
254
254
254
256

Saturday 20

Waning Crescent 2%

06:53

19:18

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
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad

Sun - Rise: 07:28, Set: 19:44, Transit: 13:35. Moon - Rise: 06:53, Set: 19:18. Civil Dark: 20:17 - 06:55. Nautical Dark: 20:56 - 06:16. Astro Dark: 21:37 - 05:36

Total Clouds (% Sky Obscured)

98
86
92
89
86
81
77
77
84
92
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

4
0
22
50
75
61
44
30
37
41
49
42
38
36
20
10
15
23
12
19
30
32
73
63

Medium Clouds (% Sky Obscured)

37
3
6
5
4
4
77
77
84
81
79
80
51
72
66
61
55
63
83
100
85
75
28
19

High Clouds (% Sky Obscured)

89
86
76
58
45
33
35
28
46
73
100
100
100
100
100
100
100
96
93
89
93
96
100
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
7
7
9
9
7
9
9
9
9
8
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
Light Rain
None
None
None
None
None
None
None
Very Light Rain
Very Light Rain
None
None
None
None
None
None
None

Precipitation Probability (%)

8
6
6
6
2
18
45
74
64
57
63
66
50
42
34
75
77
42
9
1
0
0
2
8

Precipitation Amount (mm)

0
0
0
0
0
0
0
0.4
0
0
0
0
0
0
0
0.3
0.3
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

23
24
26
26
27
27
26
24
22
20
18
17
16
15
14
14
13
13
13
13
13
13
15
15

Feels Like (°C)

21
22
23
23
24
24
24
23
21
18
17
16
15
13
12
12
11
11
10
10
10
10
11
12

Dew Point (°C)

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

Relative Humidity (%)

57
46
40
36
33
33
35
45
67
72
75
82
90
87
82
86
87
90
89
89
86
82
73
68

Pressure (mb)

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

Ozone (du)

258
259
257
257
257
256
257
256
254
254
254
255
255
257
258
259
260
260
260
262
263
264
267
269

Sunday 21

New Moon 0%

08:06

19:29

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

Sun - Rise: 07:29, Set: 19:42, Transit: 13:35. Moon - Rise: 08:06, Set: 19:29. Civil Dark: 20:15 - 06:57. Nautical Dark: 20:54 - 06:18. Astro Dark: 21:34 - 05:38

Total Clouds (% Sky Obscured)

87
100
100
100
100
71
53
30
22
33
13
18
42
53
50
44
37
50
58
72
50
35
15
29

Low Clouds (% Sky Obscured)

58
70
70
67
66
47
45
4
0
0
0
9
34
47
41
34
27
38
40
47
34
18
6
22

Medium Clouds (% Sky Obscured)

8
0
10
17
28
19
10
30
22
18
10
11
10
12
10
8
5
10
11
15
8
4
2
1

High Clouds (% Sky Obscured)

87
98
100
100
100
67
33
0
0
5
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
8
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
4
3
1
12
0
1
2
3
3
2
6
18
30
31
26
12
13
12
1
2
2
0
3

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)

14
14
13
11
11
9
9
7
6
6
4
3
2
4
5
5
5
6
6
6
5
7
8
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

60
53
53
52
55
53
51
50
53
64
81
85
86
80
83
80
79
77
73
71
67
62
58
54

Pressure (mb)

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

Ozone (du)

271
273
273
275
275
277
277
278
281
283
285
288
293
295
297
296
295
295
296
298
300
301
303
305

Monday 22

Waxing Crescent 1%

09:17

19:40

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
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad

Sun - Rise: 07:31, Set: 19:40, Transit: 13:35. Moon - Rise: 09:17, Set: 19:40. Civil Dark: 20:12 - 06:58. Nautical Dark: 20:51 - 06:20. Astro Dark: 21:31 - 05:40

Total Clouds (% Sky Obscured)

47
68
73
77
82
82
81
80
81
80
83
71
59
47
47
47
52
64
71
83
80
75
76
72

Low Clouds (% Sky Obscured)

37
51
56
60
64
63
64
63
60
56
53
36
20
4
4
4
5
18
32
44
49
62
76
72

Medium Clouds (% Sky Obscured)

3
3
5
3
5
5
5
5
6
8
10
9
12
7
8
9
10
10
10
10
5
5
10
10

High Clouds (% Sky Obscured)

0
0
0
0
0
1
6
9
11
12
19
42
59
47
47
47
52
48
24
0
0
0
0
6

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
Very Light Rain

Precipitation Probability (%)

4
4
9
7
3
7
7
0
3
6
1
5
7
5
10
12
11
24
27
28
37
45
47
70

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
0.3

Wind Speed/Direction (mph)

10
10
11
11
11
11
11
11
10
10
10
10
10
9
9
9
9
9
9
10
10
10
10
10

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

49
46
42
41
40
39
41
43
45
51
58
67
68
70
73
75
78
81
77
76
72
67
62
58

Pressure (mb)

1021
1021
1021
1021
1021
1021
1021
1022
1022
1022
1023
1023
1023
1023
1022
1022
1022
1021
1021
1021
1020
1020
1020
1021

Ozone (du)

306
308
309
310
310
311
311
312
312
312
312
312
312
311
311
311
311
311
311
311
312
312
313
313

Tuesday 23

Waxing Crescent 3%

10:29

19:51

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
04 Bad
05 Bad
06 Bad
07 Bad

Sun - Rise: 07:33, Set: 19:37, Transit: 13:34. Moon - Rise: 10:29, Set: 19:51. Civil Dark: 20:10 - 07:00. Nautical Dark: 20:49 - 06:21. Astro Dark: 21:29 - 05:41

Total Clouds (% Sky Obscured)

65
61
71
77
82
83
84
85
76
67
59
56
52
48
49
50
55
64
76
84

Low Clouds (% Sky Obscured)

65
61
71
77
76
75
75
74
69
64
59
51
42
33
35
37
36
48
61
75

Medium Clouds (% Sky Obscured)

15
20
17
18
17
15
16
15
11
6
0
7
14
23
25
25
15
7
3
3

High Clouds (% Sky Obscured)

12
18
11
4
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

Fog (%)

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

Precipitation Probability (%)

83
82
82
79
58
53
40
2
8
9
9
7
4
2
4
2
0
7
3
12

Precipitation Amount (mm)

0.6
0.6
0.6
0.6
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

10
10
10
11
12
13
11
9
7
8
8
7
6
6
5
5
4
4
4
3

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

48
41
34
34
34
34
38
43
47
53
59
64
67
69
72
74
77
80
80
80

Pressure (mb)

1020
1020
1020
1020
1020
1020
1020
1020
1020
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021

Ozone (du)

312
311
310
309
309
308
308
309
309
309
310
311
310
310
310
310
311
311
311
312

Forecast for Brussels, Bruxelles-Capitale, Kingdom of Belgium (50.85,4.35)

Generated: 17/09/25 12:07:11. Forecast: 17/09/25 to 23/09/25. Timezone: UTC+2.00