Clear Outside v1.0 - International Weather Forecasts For Astronomers

Saturday 22

Waxing Gibbous 75%

18:12

00:58

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

Sun - Rise: 06:43, Set: 20:49, Transit: 13:45. Moon - Rise: 18:12, Set: 00:58. Civil Dark: 21:24 - 06:07. Nautical Dark: 22:09 - 05:23. Astro Dark: 22:59 - 04:33

Total Clouds (% Sky Obscured)

72
71
75
67
52
24
39
68
80
69
87
100
93
71
45
32
12
51
41
47
44
35
43
24

Low Clouds (% Sky Obscured)

72
71
75
67
45
8
0
0
0
0
0
0
11
17
0
1
5
29
29
30
24
14
11
15

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
7
19
23
0

High Clouds (% Sky Obscured)

0
0
1
2
23
18
38
67
80
69
85
100
92
64
38
28
4
10
2
4
5
5
4
2

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 (%)

9
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
1
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

17
17
17
15
14
13
13
12
12
11
10
10
10
10
11
13
14
17
17
18
18
20
20
20

Dew Point (°C)

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

Relative Humidity (%)

49
53
52
54
61
68
73
75
77
77
79
80
80
78
80
73
65
60
52
46
43
42
39
38

Pressure (mb)

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

Ozone (du)

349
346
343
344
344
343
341
339
337
336
336
335
334
334
335
337
339
340
340
340
340
341
341
341

Sunday 23

Waxing Gibbous 83%

18:55

02:01

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

Sun - Rise: 06:44, Set: 20:47, Transit: 13:44. Moon - Rise: 18:55, Set: 02:01. Civil Dark: 21:22 - 06:09. Nautical Dark: 22:06 - 05:25. Astro Dark: 22:56 - 04:36

Total Clouds (% Sky Obscured)

19
65
51
37
65
16
16
28
78
45
13
0
0
3
5
2
2
2
3
2
19
42
38
35

Low Clouds (% Sky Obscured)

10
14
11
14
12
10
12
10
7
0
0
0
0
0
0
0
0
0
0
0
0
6
2
0

Medium Clouds (% Sky Obscured)

0
0
10
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)

3
65
40
17
65
0
1
16
74
45
13
0
0
3
5
2
2
2
2
2
19
40
38
35

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

38
40
43
51
60
66
66
71
78
80
81
83
83
84
84
77
67
57
51
44
38
34
32
32

Pressure (mb)

1024
1023
1023
1023
1024
1024
1024
1024
1024
1023
1023
1023
1023
1022
1022
1022
1022
1022
1021
1021
1020
1019
1018
1017

Ozone (du)

342
341
340
340
339
338
336
334
331
330
329
328
326
324
324
324
325
325
325
325
324
323
323
321

Monday 24

Waxing Gibbous 90%

19:27

03:11

17 OK
18 Bad
19 Bad
20 Bad
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

Sun - Rise: 06:46, Set: 20:44, Transit: 13:44. Moon - Rise: 19:27, Set: 03:11. Civil Dark: 21:20 - 06:11. Nautical Dark: 22:04 - 05:27. Astro Dark: 22:53 - 04:38

Total Clouds (% Sky Obscured)

39
54
89
84
14
35
48
94
51
100
71
75
72
68
100
100
100
100
100
100
98
96
93
92

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
2
6
10
0
0
0
5
4
36
64
67
70
73
74

Medium Clouds (% Sky Obscured)

3
19
87
82
3
3
4
16
31
18
22
18
30
36
72
83
90
74
95
89
71
73
67
52

High Clouds (% Sky Obscured)

39
40
39
40
13
35
48
88
21
100
64
65
62
43
97
100
100
99
92
100
85
65
39
11

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
1
0
0
0
0
0
0
1
2
2
10
31
19
4
8
14
15

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

6
6
6
5
5
5
6
6
6
6
6
6
6
6
6
6
6
7
11
12
13
13
13
14

Relative Humidity (%)

32
33
34
35
37
41
45
48
49
52
54
55
57
58
60
58
53
50
57
60
60
55
54
59

Pressure (mb)

1016
1015
1015
1015
1014
1014
1014
1014
1014
1013
1013
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012

Ozone (du)

320
319
320
319
319
316
315
314
314
314
314
313
314
313
312
311
310
309
309
310
310
311
311
309

Tuesday 25

Waxing Gibbous 95%

19:51

04:26

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 OK
11 OK
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad

Sun - Rise: 06:47, Set: 20:42, Transit: 13:44. Moon - Rise: 19:51, Set: 04:26. Civil Dark: 21:17 - 06:12. Nautical Dark: 22:01 - 05:29. Astro Dark: 22:50 - 04:40

Total Clouds (% Sky Obscured)

94
95
96
87
77
80
91
87
86
97
95
100
100
100
94
75
48
27
35
42
48
63
83
100

Low Clouds (% Sky Obscured)

71
43
28
35
34
39
29
14
6
24
7
11
10
4
0
0
0
0
11
36
48
36
11
19

Medium Clouds (% Sky Obscured)

47
72
26
20
17
19
59
38
20
33
15
67
65
64
19
61
19
5
23
42
48
55
60
3

High Clouds (% Sky Obscured)

31
66
93
71
45
36
43
51
52
65
78
100
100
100
88
75
48
26
25
26
30
50
77
99

ISS Passover

Visibility (miles)

7
6
7
8
9
9
9
9
9
9
9
9
4
9
9
9
9
9
9
9
8
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 (%)

28
23
18
7
6
0
0
0
0
0
2
19
34
28
9
6
16
5
11
38
52
25
12
12

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)

7
7
6
5
5
4
4
4
4
4
4
4
4
4
4
5
7
8
10
10
9
7
7
7

Chance of Frost

Temperature (°C)

22
22
21
21
20
19
18
18
17
17
17
16
16
16
16
17
19
20
22
24
22
22
23
24

Feels Like (°C)

22
21
22
21
21
20
19
18
18
19
18
17
16
16
16
17
18
20
21
22
21
22
22
24

Dew Point (°C)

15
16
16
17
17
16
16
15
15
15
14
14
14
15
15
15
16
16
16
15
18
20
20
18

Relative Humidity (%)

63
72
72
77
82
84
85
83
86
87
86
86
86
92
93
89
84
75
65
57
75
89
83
68

Pressure (mb)

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

Ozone (du)

307
308
308
308
307
307
308
306
305
305
307
308
308
309
309
310
310
309
308
307
308
312
313
314

Wednesday 26

Waxing Gibbous 98%

20:09

05:42

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
15 Bad
16 Bad

Sun - Rise: 06:49, Set: 20:40, Transit: 13:44. Moon - Rise: 20:09, Set: 05:42. Civil Dark: 21:15 - 06:14. Nautical Dark: 21:59 - 05:31. Astro Dark: 22:47 - 04:43

Total Clouds (% Sky Obscured)

87
86
75
94
96
79
97
82
92
95
97
100
100
100
100
98
96
94
95
97
99
99
100
100

Low Clouds (% Sky Obscured)

29
38
18
29
27
0
0
0
0
0
4
55
55
0
0
2
4
5
7
11
15
16
17
17

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
3
6
12
64
63
61
71
56
53
27
40
54
56
58
59
65
72
78

High Clouds (% Sky Obscured)

70
64
60
89
92
70
96
69
88
92
96
100
100
100
100
97
93
90
89
89
86
92
96
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
8
7
2
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
Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
Very Light Rain

Precipitation Probability (%)

1
1
0
0
0
0
0
4
21
29
75
60
28
24
26
4
7
2
12
16
12
44
51
55

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0.4
0.3
0
0
0
0
0
0
0
0
0
0
0
0.2

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

26
27
27
27
23
22
22
20
20
19
19
18
19
19
19
19
20
20
21
21
22
23
27
26

Dew Point (°C)

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

Relative Humidity (%)

49
44
49
58
62
64
69
72
74
75
76
89
93
91
90
89
80
72
65
58
52
47
46
46

Pressure (mb)

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

Ozone (du)

318
314
310
309
310
310
309
309
308
307
305
307
311
312
314
314
315
316
316
314
312
311
310
310

Thursday 27

Waxing Gibbous 100%

20:24

06:58

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
15 Bad
16 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)

100
100
100
100
100
100
100
99
99
99
100
100
82
66
54
70
86
93
95
98
100
99
99
98

Low Clouds (% Sky Obscured)

20
21
22
23
21
21
47
72
97
80
63
45
32
20
8
24
36
49
56
62
67
72
78
83

Medium Clouds (% Sky Obscured)

83
80
81
83
88
96
88
82
80
80
80
80
56
32
5
11
19
28
51
74
96
84
75
64

High Clouds (% Sky Obscured)

100
100
100
100
100
100
97
93
89
93
96
100
82
66
54
70
78
85
90
94
100
96
93
86

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

82
95
95
95
95
95
95
95
95
95
83
41
37
29
13
32
44
50
63
79
94
84
73
62

Precipitation Amount (mm)

0.5
0.9
1.3
1.3
0.8
0.6
1.1
1.2
1.2
0.8
0.4
0
0
0
0
0
0
0.3
0.3
0.5
0.7
0.6
0.4
0.3

Wind Speed/Direction (mph)

5
4
4
5
4
4
4
5
7
10
10
11
11
11
11
12
13
14
15
15
15
14
14
13

Chance of Frost

Temperature (°C)

26
25
23
22
21
20
19
18
18
18
18
17
17
16
16
15
16
17
18
17
17
16
17
18

Feels Like (°C)

25
26
26
27
21
22
22
22
21
21
18
17
16
16
17
17
13
13
12
13
14
14
11
12

Dew Point (°C)

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

Relative Humidity (%)

45
52
61
73
79
86
95
93
93
92
92
90
88
87
86
86
79
73
67
74
81
89
81
74

Pressure (mb)

1008
1008
1007
1007
1007
1007
1007
1007
1007
1007
1006
1006
1006
1006
1006
1007
1006
1006
1006
1007
1007
1008
1008
1008

Ozone (du)

309
308
307
306
306
306
306
308
310
312
321
331
340
343
346
349
347
345
343
341
339
337
337
336

Friday 28

Full Moon 99%

20:37

08:14

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

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)

90
82
76
78
80
82
78
74
67
76
87
99
83
66
47
56
66
75
80
84
91

Low Clouds (% Sky Obscured)

71
59
46
56
64
73
57
43
26
46
64
87
67
47
27
43
58
73
70
70
69

Medium Clouds (% Sky Obscured)

58
50
42
45
44
43
39
36
34
31
24
18
17
16
17
30
43
56
48
41
34

High Clouds (% Sky Obscured)

68
48
34
44
59
74
73
66
62
66
73
81
51
24
0
11
25
37
27
16
5

ISS Passover

Visibility (miles)

9
9
9
9
9
8
8
8
9
9
9
9
9
9
9
9
9
9
9
9
8

Fog (%)

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

Precipitation Probability (%)

64
72
82
62
46
26
28
26
20
21
23
24
22
18
3
27
37
44
44
47
50

Precipitation Amount (mm)

0.3
0.4
0.5
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

12
10
8
6
7
8
8
10
11
12
12
12
13
13
12
12
13
14
15
15
16

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

68
68
68
67
68
71
72
75
80
84
84
84
85
86
87
90
90
90
90
81
71

Pressure (mb)

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

Ozone (du)

336
333
330
327
330
332
334
334
335
335
334
333
332
333
333
334
332
329
327
327
327

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

Generated: 22/08/26 17:40:46. Forecast: 22/08/26 to 28/08/26. Timezone: UTC+2.00