Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 23

Waning Crescent 38%

00:16

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

Sun - Rise: 07:30, Set: 19:39, Transit: 13:34. Moon - Rise: 00:16, Set: 16:58. Civil Dark: 20:11 - 06:57. Nautical Dark: 20:50 - 06:19. Astro Dark: 21:30 - 05:39

Total Clouds (% Sky Obscured)

100
99
100
99
100
100
100
100
100
100
100
99
98
75
34
34
20
24
57
42
27
63
100
100

Low Clouds (% Sky Obscured)

0
6
6
20
14
16
2
1
1
4
31
58
80
40
20
24
16
20
18
13
16
0
0
1

Medium Clouds (% Sky Obscured)

100
33
81
31
6
2
0
0
0
5
13
31
31
29
23
27
15
20
55
41
27
6
4
16

High Clouds (% Sky Obscured)

100
99
100
99
100
100
100
100
100
100
100
98
93
54
4
0
0
0
1
0
0
61
100
100

ISS Passover

Visibility (miles)

6
7
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10

Fog (%)

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

Precipitation Probability (%)

22
16
8
5
8
11
12
11
8
7
0
0
0
3
3
2
2
2
0
0
0
0
0
1

Precipitation Amount (mm)

0.08
0.03
0.01
0.01
0.01
0.02
0.01
0.01
0.01
0.01
0
0
0
0.01
0.02
0.01
0.01
0.01
0
0
0
0
0
0.01

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

93
92
86
83
83
84
85
86
86
85
81
76
71
68
63
58
53
50
49
53
59
64
69
72

Pressure (mb)

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

Ozone (du)

275
277
278
279
279
280
282
285
287
288
288
289
293
298
300
295
287
280
278
277
277
279
281
282

Tuesday 24

Waning Crescent 27%

01:18

17:47

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: 07:32, Set: 19:36, Transit: 13:34. Moon - Rise: 01:18, Set: 17:47. Civil Dark: 20:09 - 06:59. Nautical Dark: 20:48 - 06:20. Astro Dark: 21:28 - 05:40

Total Clouds (% Sky Obscured)

100
100
96
98
96
95
82
100
100
100
98
99
100
100
100
93
99
100
89
87
98
92
73
98

Low Clouds (% Sky Obscured)

23
0
0
2
1
0
0
0
9
16
58
2
0
1
0
1
98
100
84
38
88
2
0
1

Medium Clouds (% Sky Obscured)

58
100
96
98
96
95
75
80
52
31
50
56
47
100
51
85
68
57
34
50
63
48
47
43

High Clouds (% Sky Obscured)

100
95
1
0
1
0
27
99
100
100
95
98
100
100
99
80
48
1
3
71
91
88
62
98

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10

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
Very Light Rain
Very Light Rain
Very Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
Very Light Rain

Precipitation Probability (%)

2
2
2
0
0
0
0
0
4
5
6
11
36
59
66
63
45
36
57
69
68
53
38
17

Precipitation Amount (mm)

0.01
0.01
0.01
0
0
0
0
0
0.01
0.01
0.01
0.04
0.18
0.57
0.87
0.58
0.23
0.19
0.39
0.75
0.94
0.64
0.25
0.09

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

10
10
10
10
10
10
10
10
10
10
10
10
11
11
11
11
11
12
12
12
12
12
11
11

Relative Humidity (%)

72
71
70
69
69
69
69
70
70
67
62
60
64
72
77
78
77
76
74
75
80
80
81
81

Pressure (mb)

1015
1015
1015
1014
1012
1011
1011
1011
1011
1010
1010
1009
1008
1008
1007
1006
1006
1005
1005
1005
1005
1005
1006
1006

Ozone (du)

280
277
274
273
272
272
273
274
275
276
277
278
279
280
281
283
286
288
288
287
287
286
285
284

Wednesday 25

Waning Crescent 17%

02:31

18:26

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: 07:33, Set: 19:34, Transit: 13:34. Moon - Rise: 02:31, Set: 18:26. Civil Dark: 20:07 - 07:01. Nautical Dark: 20:45 - 06:22. Astro Dark: 21:25 - 05:42

Total Clouds (% Sky Obscured)

100
96
85
95
96
95
93
98
100
100
99
91
90
100
99
99
100
99
98
80
88
88
88
88

Low Clouds (% Sky Obscured)

1
7
6
4
13
2
0
2
0
28
16
46
34
100
92
98
91
69
78
52
13
13
13
13

Medium Clouds (% Sky Obscured)

99
95
84
54
71
32
56
84
100
100
98
84
63
53
69
91
100
95
83
56
88
88
88
88

High Clouds (% Sky Obscured)

98
54
0
89
91
93
90
95
100
95
82
30
77
70
85
87
84
88
71
47
3
3
3
3

ISS Passover

Visibility (miles)

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

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
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain

Precipitation Probability (%)

11
9
13
18
28
37
36
26
17
25
42
46
45
41
37
32
37
40
38
32
24
15
12
13

Precipitation Amount (mm)

0.03
0.02
0.04
0.09
0.17
0.23
0.15
0.06
0.04
0.06
0.15
0.26
0.26
0.23
0.25
0.38
0.59
0.69
0.52
0.28
0.14
0.07
0.06
0.07

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

10
10
10
10
11
11
11
11
10
10
10
10
10
11
11
11
11
11
11
11
11
11
11
11

Relative Humidity (%)

81
82
82
83
84
84
84
85
85
84
83
81
79
76
74
72
70
69
68
69
72
75
79
82

Pressure (mb)

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

Ozone (du)

283
281
280
280
281
282
284
286
287
287
287
286
286
285
285
286
287
288
286
284
283
282
281
281

Thursday 26

Waning Crescent 9%

03:52

18:59

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 OK
13 OK
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad

Sun - Rise: 07:35, Set: 19:32, Transit: 13:33. Moon - Rise: 03:52, Set: 18:59. Civil Dark: 20:05 - 07:02. Nautical Dark: 20:43 - 06:24. Astro Dark: 21:23 - 05:44

Total Clouds (% Sky Obscured)

88
88
42
42
42
42
42
42
13
13
13
13
13
13
100
100
100
100
100
100
71
71
71
71

Low Clouds (% Sky Obscured)

13
13
31
31
31
31
31
31
12
12
12
12
12
12
67
67
67
67
67
67
45
45
45
45

Medium Clouds (% Sky Obscured)

88
88
36
36
36
36
36
36
1
1
1
1
1
1
100
100
100
100
100
100
64
64
64
64

High Clouds (% Sky Obscured)

3
3
0
0
0
0
0
0
0
0
0
0
0
0
47
47
47
47
47
47
2
2
2
2

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10

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

Precipitation Probability (%)

12
12
16
25
34
38
44
51
53
50
50
44
19
7
5
4
4
4
4
6
9
15
20
24

Precipitation Amount (mm)

0.07
0.07
0.09
0.11
0.16
0.2
0.2
0.3
0.42
0.34
0.24
0.22
0.14
0.06
0.04
0.03
0.02
0.01
0.01
0.02
0.03
0.07
0.15
0.21

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

11
11
12
12
12
12
13
13
13
13
12
13
13
13
13
12
12
12
12
12
12
12
12
12

Relative Humidity (%)

83
83
84
84
84
85
85
87
87
85
81
78
74
70
65
61
60
60
61
65
69
73
75
77

Pressure (mb)

1008
1009
1009
1009
1009
1009
1010
1010
1010
1011
1012
1012
1012
1013
1013
1013
1013
1013
1013
1013
1013
1013
1014
1014

Ozone (du)

280
279
278
275
272
269
267
266
266
266
267
267
266
265
265
265
266
268
269
271
273
276
279
282

Friday 27

Waning Crescent 3%

05:17

19:26

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: 07:36, Set: 19:30, Transit: 13:33. Moon - Rise: 05:17, Set: 19:26. Civil Dark: 20:02 - 07:04. Nautical Dark: 20:41 - 06:25. Astro Dark: 21:20 - 05:46

Total Clouds (% Sky Obscured)

71
71
80
80
80
80
80
80
100
100
100
100
100
100
98
98
98
98
98
98
45
45
45
45

Low Clouds (% Sky Obscured)

45
45
17
17
17
17
17
17
100
100
100
100
100
100
27
27
27
27
27
27
12
12
12
12

Medium Clouds (% Sky Obscured)

64
64
40
40
40
40
40
40
100
100
100
100
100
100
33
33
33
33
33
33
45
45
45
45

High Clouds (% Sky Obscured)

2
2
63
63
63
63
63
63
93
93
93
93
93
93
96
96
96
96
96
96
0
0
0
0

ISS Passover

Visibility (miles)

10
10
10
10
10
9
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10

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

Precipitation Probability (%)

22
17
16
21
27
30
31
24
14
9
6
5
7
11
15
15
17
19
19
17
15
12
0
0

Precipitation Amount (mm)

0.17
0.13
0.13
0.15
0.19
0.23
0.21
0.16
0.12
0.07
0.03
0.02
0.04
0.1
0.17
0.15
0.14
0.16
0.13
0.09
0.06
0.02
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

78
79
81
82
84
86
86
87
84
80
76
72
67
63
59
59
62
64
65
66
68
70
71
73

Pressure (mb)

1014
1014
1013
1013
1013
1013
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1013
1013
1013
1014
1013

Ozone (du)

283
284
285
286
287
289
290
292
295
300
306
310
311
310
309
308
307
307
308
310
311
310
307
306

Saturday 28

New Moon 0%

06:43

19:51

00 OK
01 OK
02 OK
03 OK
04 OK
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: 07:38, Set: 19:27, Transit: 13:33. Moon - Rise: 06:43, Set: 19:51. Civil Dark: 20:00 - 07:05. Nautical Dark: 20:38 - 06:27. Astro Dark: 21:18 - 05:47

Total Clouds (% Sky Obscured)

45
45
29
29
29
29
29
29
74
74
74
74
74
74
100
100
100
100
100
100
99
99
99
99

Low Clouds (% Sky Obscured)

12
12
6
6
6
6
6
6
12
12
12
12
12
12
37
37
37
37
37
37
0
0
0
0

Medium Clouds (% Sky Obscured)

45
45
27
27
27
27
27
27
63
63
63
63
63
63
92
92
92
92
92
92
98
98
98
98

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
28
28
28
28
28
28
99
99
99
99
99
99
93
93
93
93

ISS Passover

Visibility (miles)

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

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
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain

Precipitation Probability (%)

0
0
9
10
7
8
8
7
9
9
10
12
22
32
34
32
29
25
23
23
24
22
17
16

Precipitation Amount (mm)

0
0
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.02
0.07
0.17
0.27
0.28
0.24
0.22
0.17
0.13
0.12
0.1
0.1
0.11

Wind Speed/Direction (mph)

12
12
13
13
14
14
14
15
15
15
16
17
17
16
16
16
17
16
14
12
10
10
10
10

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

74
75
76
76
77
78
79
81
79
76
73
71
69
67
64
61
58
58
60
62
66
68
70
72

Pressure (mb)

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

Ozone (du)

306
306
307
308
309
311
312
313
314
315
316
317
317
316
314
313
310
308
306
304
302
301
301
302

Sunday 29

Waxing Crescent 1%

08:09

20:14

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: 07:40, Set: 19:25, Transit: 13:32. Moon - Rise: 08:09, Set: 20:14. Civil Dark: 19:58 - 07:07. Nautical Dark: 20:36 - 06:29. Astro Dark: 21:15 - 05:49

Total Clouds (% Sky Obscured)

99
99
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

0
0
3
3
3
3
3
3
6
6
6
6
6
6
100
100
100
100
100
100
100
100
100
100

Medium Clouds (% Sky Obscured)

98
98
99
99
99
99
99
99
100
100
100
100
100
100
92
92
92
92
92
92
14
14
14
14

High Clouds (% Sky Obscured)

93
93
98
98
98
98
98
98
56
56
56
56
56
56
31
31
31
31
31
31
85
85
85
85

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
8
6
7
10
10

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
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

13
11
11
12
12
12
10
12
14
16
24
27
23
15
14
29
58
68
69
68
66
62
52
45

Precipitation Amount (mm)

0.1
0.08
0.06
0.05
0.06
0.06
0.06
0.06
0.06
0.08
0.13
0.16
0.1
0.04
0.04
0.13
0.48
0.88
0.89
0.8
0.81
0.92
1.06
1.05

Wind Speed/Direction (mph)

10
10
10
10
11
11
11
12
12
12
12
12
12
12
12
12
11
11
11
12
12
12
12
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

74
75
76
76
77
77
79
81
81
78
74
74
73
72
70
70
71
72
74
72
72
75
78
80

Pressure (mb)

1017
1017
1016
1016
1016
1016
1015
1015
1015
1015
1015
1014
1014
1014
1013
1012
1011
1011
1010
1010
1009
1009
1009
1009

Ozone (du)

302
302
302
302
303
303
303
304
305
307
311
313
313
312
312
314
316
319
319
319
319
320
320
321

Forecast for De Brouckere, 1000 Brussels, Belgium (50.85,4.35)

Generated: 23/09/19 00:32:46. Forecast: 23/09/19 to 29/09/19. Timezone: UTC+2.00