Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 28

Full Moon 99%

20:49

08:14

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

Sun - Rise: 06:52, Set: 20:34, Transit: 13:43. Moon - Rise: 20:49, Set: 08:14. Civil Dark: 21:11 - 06:17. Nautical Dark: 21:54 - 05:35. Astro Dark: 22:41 - 04:48

Total Clouds (% Sky Obscured)

78
87
93
21
60
80
80
58
55
40
27
35
62
96
100
100
100
100
97
99
100
91
79
100

Low Clouds (% Sky Obscured)

5
0
11
11
13
14
11
14
14
12
14
15
62
85
87
55
80
77
70
91
100
72
79
80

Medium Clouds (% Sky Obscured)

0
0
0
3
9
2
32
33
32
16
8
13
0
3
24
89
100
100
97
79
54
10
8
85

High Clouds (% Sky Obscured)

14
30
2
1
32
65
38
4
0
0
0
3
30
77
100
100
100
88
23
1
18
0
0
75

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
4
7
1
0
0
2
22
27
28
3
6
32
24
32
48
12
23
42

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

70
72
77
78
73
69
70
75
78
79
82
80
77
76
76
70
69
67
77
77
75
81
75
80

Pressure (mb)

1011
1011
1012
1012
1012
1012
1011
1011
1011
1011
1011
1012
1012
1012
1011
1011
1011
1011
1010
1010
1009
1009
1008
1008

Ozone (du)

335
335
335
334
330
328
326
322
318
314
310
305
302
301
299
297
297
296
301
299
300
303
301
300

Saturday 29

Waning Gibbous 96%

21:02

09:31

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

Sun - Rise: 06:54, Set: 20:32, Transit: 13:43. Moon - Rise: 21:02, Set: 09:31. Civil Dark: 21:08 - 06:19. Nautical Dark: 21:51 - 05:37. Astro Dark: 22:38 - 04:50

Total Clouds (% Sky Obscured)

100
67
53
53
68
96
100
98
95
91
96
94
75
100
88
97
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

94
67
30
22
59
90
96
97
90
89
94
86
75
95
81
67
83
82
86
73
31
0
50
68

Medium Clouds (% Sky Obscured)

98
67
6
10
8
17
30
36
33
18
21
33
0
0
10
29
21
23
20
31
20
19
91
100

High Clouds (% Sky Obscured)

76
1
1
0
0
0
1
1
1
1
2
3
19
72
54
79
100
100
100
100
100
100
100
100

ISS Passover

Visibility (miles)

5
8
6
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

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
None

Precipitation Probability (%)

95
88
32
7
17
6
5
17
6
18
7
6
18
6
12
20
20
19
17
6
1
1
6
23

Precipitation Amount (mm)

0.6
0.7
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)

15
16
17
16
18
19
19
18
16
15
15
15
15
15
15
14
14
13
13
12
10
8
6
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

77
85
84
84
84
82
81
81
82
78
77
77
81
78
75
71
63
62
62
56
56
49
52
56

Pressure (mb)

1007
1007
1007
1007
1008
1008
1008
1008
1009
1009
1010
1011
1011
1012
1013
1013
1013
1013
1013
1013
1012
1012
1012
1011

Ozone (du)

298
299
301
300
301
299
299
299
300
300
300
300
300
299
299
300
299
299
299
300
301
302
303
305

Sunday 30

Waning Gibbous 91%

21:02

10:50

21 Bad
22 Bad
23 Bad
00 OK
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 OK
20 OK

Sun - Rise: 06:55, Set: 20:30, Transit: 13:42. Moon - Rise: 21:02, Set: 10:50. Civil Dark: 21:06 - 06:21. Nautical Dark: 21:48 - 05:39. Astro Dark: 22:35 - 04:52

Total Clouds (% Sky Obscured)

100
83
56
32
63
96
55
42
36
74
81
100
94
55
78
94
72
84
76
87
62
42
24
27

Low Clouds (% Sky Obscured)

0
8
41
11
31
29
22
42
36
54
71
69
86
50
57
82
65
68
54
66
47
29
14
10

Medium Clouds (% Sky Obscured)

100
56
19
4
26
44
16
2
0
11
0
16
22
23
3
19
15
18
21
22
18
14
9
5

High Clouds (% Sky Obscured)

100
50
0
17
55
93
27
0
3
55
18
60
6
0
47
37
0
0
0
0
0
0
0
14

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
9
8
7
5
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
Light Rain
None
None
None
None
None
None
Light Rain
None
None
Light Rain
Very Light Rain
None
None
None
None
None
None
None

Precipitation Probability (%)

25
19
12
13
57
70
8
6
14
20
20
28
62
43
52
62
55
42
34
32
20
11
3
2

Precipitation Amount (mm)

0
0
0
0
0
0.6
0
0
0
0
0
0
0.5
0
0
0.4
0.2
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

6
6
6
8
8
9
10
11
12
13
14
15
15
16
19
18
18
18
16
16
14
13
13
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

68
76
77
71
73
74
74
75
77
79
83
77
71
63
58
53
58
56
60
51
52
46
49
56

Pressure (mb)

1011
1011
1011
1010
1010
1010
1010
1010
1010
1010
1010
1010
1010
1010
1011
1011
1012
1012
1013
1013
1014
1014
1014
1015

Ozone (du)

307
310
315
323
325
323
323
326
325
326
326
328
327
326
327
328
327
326
327
328
329
328
326
320

Monday 31

Waning Gibbous 83%

21:16

12:12

21 OK
22 OK
23 OK
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 OK
20 OK

Sun - Rise: 06:57, Set: 20:27, Transit: 13:42. Moon - Rise: 21:16, Set: 12:12. Civil Dark: 21:04 - 06:22. Nautical Dark: 21:46 - 05:40. Astro Dark: 22:32 - 04:55

Total Clouds (% Sky Obscured)

28
28
40
49
52
52
53
47
55
84
87
89
92
94
88
84
78
82
81
82
83
76
35
47

Low Clouds (% Sky Obscured)

5
0
7
15
23
25
28
27
28
32
33
26
20
18
18
39
50
82
81
82
82
39
24
39

Medium Clouds (% Sky Obscured)

3
1
5
9
18
13
8
3
5
9
10
13
13
19
43
50
57
15
53
30
33
68
16
13

High Clouds (% Sky Obscured)

26
28
40
45
52
39
32
15
12
41
35
35
35
35
35
40
40
60
3
13
21
3
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
1
0
0
0
0
0
0
0
0
0
8
6
4
8
35
31
13
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
8
8
8
8
8
7
7
7
7
7
6
7
8
8
8
8
8
8
7
8
6
5
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

64
72
82
87
90
92
92
92
93
93
93
92
85
77
69
60
55
52
49
52
56
55
52
60

Pressure (mb)

1016
1017
1017
1017
1017
1017
1018
1018
1018
1018
1018
1019
1019
1019
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020

Ozone (du)

317
316
315
315
316
317
316
315
313
313
315
315
314
313
313
313
313
314
315
315
316
317
317
317

Tuesday 1

Waning Gibbous 74%

21:34

13:38

21 Bad
22 OK
23 OK
00 OK
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

Sun - Rise: 06:58, Set: 20:25, Transit: 13:42. Moon - Rise: 21:34, Set: 13:38. Civil Dark: 20:59 - 06:24. Nautical Dark: 21:43 - 05:42. Astro Dark: 22:29 - 04:57

Total Clouds (% Sky Obscured)

53
21
34
44
60
60
60
60
66
60
58
73
83
94
91
87
86
90
93
96
95
95
95
96

Low Clouds (% Sky Obscured)

49
12
16
19
23
21
20
20
23
21
16
2
1
0
2
4
6
33
60
88
83
80
78
65

Medium Clouds (% Sky Obscured)

6
5
9
15
18
20
30
32
32
31
22
5
3
4
6
12
19
20
21
18
26
32
41
42

High Clouds (% Sky Obscured)

0
1
24
44
60
60
60
60
66
60
57
73
83
94
91
87
86
76
63
50
38
34
37
45

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

Precipitation Probability (%)

0
0
0
0
1
1
0
0
0
0
0
0
0
0
8
14
14
38
51
60
55
46
32
36

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.3
0.3
0
0
0

Wind Speed/Direction (mph)

4
3
3
2
2
3
3
4
4
4
4
5
7
8
9
9
9
10
10
10
11
10
10
10

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

65
67
73
78
80
84
84
86
87
89
89
86
77
66
58
51
46
41
42
42
43
46
49
53

Pressure (mb)

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

Ozone (du)

319
321
322
324
323
324
324
324
322
321
321
319
320
320
321
321
322
322
322
322
322
319
317
315

Wednesday 2

Waning Gibbous 63%

21:57

15:03

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

Sun - Rise: 07:00, Set: 20:23, Transit: 13:41. Moon - Rise: 21:57, Set: 15:03. Civil Dark: 20:57 - 06:26. Nautical Dark: 21:41 - 05:44. Astro Dark: 22:27 - 04:59

Total Clouds (% Sky Obscured)

98
100
96
91
86
86
87
89
87
85
81
87
94
100
99
98
97
92
88
82
81
78
74
62

Low Clouds (% Sky Obscured)

52
43
57
72
86
84
80
77
71
63
56
61
72
85
90
90
88
81
75
70
67
63
61
44

Medium Clouds (% Sky Obscured)

45
51
59
56
52
49
46
46
56
63
71
80
89
97
79
60
38
33
24
16
15
13
10
8

High Clouds (% Sky Obscured)

57
65
59
59
58
71
67
64
61
52
45
30
25
25
20
30
45
60
65
70
61
50
37
32

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
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
Light Rain
Light Rain
Moderate Rain
Light Rain
Light Rain
None
None
None
None
None

Precipitation Probability (%)

44
51
55
52
37
30
28
28
22
16
6
10
14
18
89
95
95
95
93
44
29
15
2
2

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.7
1.7
3.1
1
0.6
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

58
64
72
73
76
78
79
81
83
82
81
78
79
79
81
81
80
78
69
62
54
57
61
65

Pressure (mb)

1018
1018
1018
1017
1017
1017
1017
1016
1016
1016
1016
1016
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1016
1016

Ozone (du)

313
312
310
309
308
308
307
306
305
303
302
300
299
298
297
296
294
293
293
293
293
291
290
289

Thursday 3

Waning Gibbous 51%

22:30

16:22

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
12 Bad
13 Bad

Sun - Rise: 07:01, Set: 20:21, Transit: 13:41. Moon - Rise: 22:30, Set: 16:22. Civil Dark: 20:55 - 06:27. Nautical Dark: 21:38 - 05:46. Astro Dark: 22:24 - 05:01

Total Clouds (% Sky Obscured)

53
50
51
55
56
71
84
97
87
78
68
76
83
91
91
90
89

Low Clouds (% Sky Obscured)

23
0
4
8
14
16
16
17
27
38
48
62
77
91
91
90
89

Medium Clouds (% Sky Obscured)

7
6
13
20
27
45
62
80
60
37
10
21
33
44
55
66
77

High Clouds (% Sky Obscured)

30
34
25
13
8
14
22
38
33
28
19
17
11
3
3
3
2

ISS Passover

Visibility (miles)

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

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

1
0
1
1
0
0
1
0
0
1
1
13
21
28
31
30
31

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

19
18
17
17
16
16
16
16
16
16
16
16
16
17
18
19
19

Feels Like (°C)

18
17
17
17
16
16
15
14
14
14
13
13
14
15
16
16
16

Dew Point (°C)

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

Relative Humidity (%)

69
73
78
78
81
81
82
81
81
83
85
85
86
86
88
84
81

Pressure (mb)

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

Ozone (du)

288
288
287
287
286
285
285
284
284
283
282
282
282
283
283
283
282

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

Generated: 28/08/26 21:07:31. Forecast: 28/08/26 to 03/09/26. Timezone: UTC+2.00