Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 27

Waxing Gibbous 100%

20:24

06:58

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
12 Bad
13 Bad
14 Bad

Sun - Rise: 06:50, Set: 20:38, Transit: 13:43. Moon - Rise: 20:24, Set: 06:58. Civil Dark: 21:13 - 06:16. Nautical Dark: 21:56 - 05:33. Astro Dark: 22:44 - 04:45

Total Clouds (% Sky Obscured)

63
71
78
82
100
100
100
100
100
100
100
100
100
100
100
66
68
76
86
100
100
100
100
83

Low Clouds (% Sky Obscured)

13
0
0
66
74
59
38
55
36
46
60
39
35
21
33
35
37
47
42
50
49
60
88
27

Medium Clouds (% Sky Obscured)

30
71
78
82
100
67
43
82
48
31
66
9
36
32
24
66
68
76
86
97
99
100
100
12

High Clouds (% Sky Obscured)

63
71
78
82
100
100
100
100
100
100
100
100
100
100
100
30
38
35
35
100
100
76
93
83

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

0
5
18
26
64
95
87
81
46
39
18
13
55
71
42
5
4
6
11
30
93
95
95
55

Precipitation Amount (mm)

0
0
0
0
0
0.9
0.2
0
0
0
0
0
0.2
0.4
0.2
0
0
0
0
0
0.5
0.9
0.6
0

Wind Speed/Direction (mph)

10
10
10
9
4
7
7
4
5
6
4
5
5
7
7
6
6
7
7
7
10
11
16
11

Chance of Frost

Temperature (°C)

28
28
27
27
27
26
22
21
20
20
19
19
19
19
18
18
17
18
18
19
20
19
19
18

Feels Like (°C)

26
26
26
25
28
26
21
22
21
19
20
20
20
19
19
18
18
18
19
19
19
18
15
16

Dew Point (°C)

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

Relative Humidity (%)

43
42
42
43
54
53
64
75
82
91
88
86
88
89
95
96
95
96
93
84
77
78
76
85

Pressure (mb)

1008
1009
1008
1008
1008
1008
1009
1009
1009
1010
1009
1009
1008
1008
1009
1008
1008
1008
1009
1009
1009
1009
1010
1010

Ozone (du)

307
305
304
303
303
303
304
307
308
309
309
310
311
310
310
314
317
318
322
326
331
342
346
351

Friday 28

Full Moon 99%

20:37

08:14

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

Sun - Rise: 06:52, Set: 20:36, Transit: 13:43. Moon - Rise: 20:37, 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)

92
100
95
100
94
52
6
24
68
54
52
23
66
65
69
98
98
76
100
92
100
100
100
100

Low Clouds (% Sky Obscured)

32
35
32
18
9
14
4
14
12
4
11
17
44
21
51
89
94
48
19
19
20
92
61
78

Medium Clouds (% Sky Obscured)

56
61
53
53
4
4
6
0
0
0
3
3
46
48
37
40
39
18
3
3
80
99
100
100

High Clouds (% Sky Obscured)

90
100
95
100
94
11
1
1
68
42
29
1
0
2
0
2
7
28
100
79
100
96
100
60

ISS Passover

Visibility (miles)

9
7
5
7
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

Very 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
Light Rain

Precipitation Probability (%)

74
73
76
40
7
1
0
0
0
0
0
0
6
8
6
3
1
0
0
0
0
0
20
74

Precipitation Amount (mm)

0.3
0.4
0.5
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.5

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

59
57
61
67
69
69
74
73
78
82
85
83
83
85
86
85
81
78
74
68
61
59
61
57

Pressure (mb)

1010
1010
1010
1010
1010
1010
1011
1011
1011
1011
1011
1011
1011
1011
1011
1011
1011
1012
1012
1012
1012
1012
1011
1011

Ozone (du)

348
347
347
341
342
340
339
338
335
331
328
325
322
318
317
313
308
306
303
303
302
301
301
304

Saturday 29

Waning Gibbous 96%

20:49

09:31

15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 OK
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

Sun - Rise: 06:54, Set: 20:34, Transit: 13:43. Moon - Rise: 20:49, 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
95
84
88
99
62
59
40
52
55
35
46
51
79
75
100
88
93
96
100
100
100
100
100

Low Clouds (% Sky Obscured)

92
95
82
88
78
33
37
39
42
46
35
46
51
52
51
48
53
74
82
89
83
75
68
66

Medium Clouds (% Sky Obscured)

100
47
17
17
3
40
37
11
17
17
0
0
0
0
0
0
0
8
17
23
22
21
18
16

High Clouds (% Sky Obscured)

0
0
0
1
50
50
0
0
35
0
0
2
2
70
62
99
81
87
92
100
100
100
100
100

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

38
27
13
14
30
63
95
49
9
4
1
0
0
0
0
0
0
4
6
2
7
7
1
0

Precipitation Amount (mm)

0
0
0
0
0
0.2
1.5
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

70
71
58
58
66
78
86
89
92
92
85
81
83
85
86
87
90
87
83
81
72
65
62
57

Pressure (mb)

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

Ozone (du)

304
305
304
303
302
303
302
303
301
302
301
300
301
300
298
298
298
297
297
297
297
296
296
296

Sunday 30

Waning Gibbous 91%

21:02

10:50

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

Sun - Rise: 06:55, Set: 20:32, 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
100
100
100
100
93
85
76
54
41
58
76
42
42
39
36
44
71
76
84
93
88
49
60

Low Clouds (% Sky Obscured)

66
54
67
59
21
55
64
42
31
10
45
75
18
19
20
18
22
59
54
70
85
83
40
53

Medium Clouds (% Sky Obscured)

14
11
10
95
13
52
11
15
11
12
9
8
2
0
1
2
5
32
39
25
21
12
5
4

High Clouds (% Sky Obscured)

100
100
100
100
100
83
63
45
3
7
11
16
22
28
19
10
4
2
0
0
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
8
9
6
8

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
Very Light Rain
None

Precipitation Probability (%)

1
0
4
7
5
12
14
12
15
11
14
15
16
12
8
5
7
15
33
43
52
55
56
17

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
0.3
0

Wind Speed/Direction (mph)

11
11
13
11
8
6
5
5
6
7
8
8
10
11
13
13
14
15
17
18
18
18
17
18

Chance of Frost

Temperature (°C)

22
22
23
22
21
21
20
19
18
17
17
16
17
17
17
16
16
16
17
18
18
19
20
21

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

55
51
48
53
56
62
61
60
65
70
72
68
60
64
67
73
78
82
74
65
65
62
64
54

Pressure (mb)

1013
1012
1012
1011
1011
1011
1011
1011
1011
1011
1011
1011
1011
1011
1011
1011
1011
1011
1012
1012
1012
1013
1013
1013

Ozone (du)

296
297
297
299
301
305
310
316
321
324
327
327
325
324
323
327
327
327
329
332
336
335
331
329

Monday 31

Waning Gibbous 83%

21:16

12:12

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
12 Bad
13 Bad
14 Bad

Sun - Rise: 06:57, Set: 20:30, 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)

52
71
61
49
62
62
64
100
98
97
95
92
89
88
91
94
96
99
99
100
97
93
89
88

Low Clouds (% Sky Obscured)

47
70
39
8
0
0
0
0
0
0
0
1
2
3
6
7
8
7
9
11
16
18
21
26

Medium Clouds (% Sky Obscured)

3
3
9
18
25
20
21
14
18
56
37
33
25
12
23
35
46
41
42
34
27
20
10
35

High Clouds (% Sky Obscured)

0
0
24
45
62
62
64
100
92
86
81
74
73
70
80
75
90
92
95
88
72
51
40
32

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
1
1
5
6
3
6

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)

17
17
17
14
12
10
8
7
6
6
6
6
6
6
6
6
6
6
7
8
9
9
10
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

41
42
47
46
47
54
62
69
75
80
86
90
92
90
92
92
90
92
82
74
66
58
51
44

Pressure (mb)

1014
1014
1015
1015
1016
1016
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1018
1018
1018
1017
1017

Ozone (du)

325
321
317
316
315
314
312
311
310
310
310
310
310
310
310
311
312
313
314
315
316
318
320
322

Tuesday 1

Waning Gibbous 74%

21:34

13:38

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

Sun - Rise: 06:58, Set: 20:27, Transit: 13:42. Moon - Rise: 21:34, Set: 13:38. Civil Dark: 21:02 - 06:24. Nautical Dark: 21:43 - 05:42. Astro Dark: 22:29 - 04:57

Total Clouds (% Sky Obscured)

85
84
74
66
59
45
32
19
26
37
45
41
34
32
55
79
100
95
88
82
63
45
17
29

Low Clouds (% Sky Obscured)

31
36
40
46
54
42
28
17
11
5
0
3
6
9
18
27
36
38
39
41
30
18
10
8

Medium Clouds (% Sky Obscured)

56
81
65
51
34
23
11
0
0
1
3
4
4
2
29
55
74
69
61
50
39
23
7
6

High Clouds (% Sky Obscured)

28
25
24
27
27
18
6
0
13
26
40
34
33
32
55
79
100
90
81
75
63
45
17
24

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
Very Light Rain
Light Rain
Very Light Rain
Very Light Rain

Precipitation Probability (%)

6
6
9
6
5
3
3
0
0
0
0
0
0
0
10
20
25
34
39
51
65
75
62
62

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.5
0.2
0.2

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

22
23
23
22
21
20
19
17
15
15
14
14
14
14
14
14
14
15
16
17
18
19
20
21

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

42
39
36
41
46
50
57
64
72
78
82
89
89
90
93
93
95
96
83
73
64
54
45
38

Pressure (mb)

1017
1017
1017
1017
1017
1017
1017
1018
1018
1018
1018
1018
1018
1018
1017
1018
1018
1018
1018
1018
1018
1018
1018
1017

Ozone (du)

323
324
325
326
327
328
328
328
328
326
325
323
324
325
326
328
331
333
333
333
333
329
326
323

Wednesday 2

Waning Gibbous 63%

21:57

15:03

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: 07:00, Set: 20:25, Transit: 13:41. Moon - Rise: 21:57, Set: 15:03. Civil Dark: 20:59 - 06:26. Nautical Dark: 21:41 - 05:44. Astro Dark: 22:27 - 04:59

Total Clouds (% Sky Obscured)

43
54
69
85
99
94
90
85
90
95
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

12
13
16
17
21
20
13
13
10
10
11
37
63
91
95
96
98

Medium Clouds (% Sky Obscured)

5
3
9
14
20
34
47
59
65
68
69
70
72
79
65
57
50

High Clouds (% Sky Obscured)

32
45
63
80
98
88
78
69
79
88
99
99
100
100
89
79
73

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

Precipitation Probability (%)

51
38
46
50
56
50
41
28
16
7
1
35
53
58
63
60
52

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

22
21
20
20
20
21
16
16
17
17
17
16
14
14
15
14
14

Dew Point (°C)

6
5
4
5
6
7
7
8
9
9
9
10
11
12
14
14
14

Relative Humidity (%)

35
33
30
35
39
44
47
51
57
59
61
64
71
79
87
87
87

Pressure (mb)

1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1016
1016
1015
1015
1015

Ozone (du)

320
318
316
314
312
310
309
308
307
306
305
304
304
303
303
305
307

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

Generated: 27/08/26 15:52:42. Forecast: 27/08/26 to 02/09/26. Timezone: UTC+2.00