Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 17

Waxing Crescent 29%

09:48

02:42

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
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad

Sun - Rise: 05:49, Set: 21:28, Transit: 13:39. Moon - Rise: 09:48, Set: 02:42. Civil Dark: 22:09 - 05:08. Nautical Dark: 23:05 - 04:09. Astro Dark: 00:30 - 02:43

Total Clouds (% Sky Obscured)

100
98
91
99
100
100
98
98
96
82
41
37
35
52
44
59
76
66
56
48
73
89
99
98

Low Clouds (% Sky Obscured)

100
98
82
95
100
100
98
98
95
81
26
27
23
29
28
23
43
37
30
21
43
77
98
94

Medium Clouds (% Sky Obscured)

48
46
44
94
100
99
64
36
21
6
34
16
4
8
18
45
55
56
46
20
19
33
68
79

High Clouds (% Sky Obscured)

16
41
36
65
31
47
23
20
13
11
1
13
23
34
20
30
51
25
12
31
58
57
54
59

ISS Passover

Visibility (miles)

10
10
10
10
6
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
Light Rain
Light Rain
Light Rain
Light Rain
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
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain

Precipitation Probability (%)

15
32
54
62
73
71
74
70
71
70
61
51
40
34
44
53
53
31
29
25
24
30
32
44

Precipitation Amount (mm)

0.02
0.1
0.37
0.64
1.2
0.73
0.59
0.55
0.81
0.92
0.63
0.36
0.27
0.21
0.54
0.66
0.55
0.17
0.17
0.16
0.14
0.19
0.21
0.28

Wind Speed/Direction (mph)

14
15
16
17
18
18
18
18
17
17
16
14
13
12
11
9
8
8
9
10
10
12
12
12

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

7
7
6
6
6
6
10
11
11
12
13
13
13
13
13
13
12
11
8
7
6
6
6
6

Dew Point (°C)

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

Relative Humidity (%)

91
93
94
96
99
100
100
99
100
100
97
95
91
90
87
89
91
92
93
94
93
93
93
94

Pressure (mb)

1002
1002
1002
1002
1002
1002
1003
1004
1005
1005
1005
1006
1006
1007
1007
1008
1009
1009
1010
1010
1010
1009
1009
1010

Ozone (du)

393
394
395
395
391
391
389
387
384
386
386
388
386
384
381
380
380
382
383
384
385
386
387
389

Tuesday 18

Waxing Crescent 39%

10:56

03:11

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
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad

Sun - Rise: 05:48, Set: 21:30, Transit: 13:39. Moon - Rise: 10:56, Set: 03:11. Civil Dark: 22:11 - 05:06. Nautical Dark: 23:08 - 04:07. Astro Dark: 00:34 - 02:38

Total Clouds (% Sky Obscured)

98
95
93
79
71
54
51
35
48
88
81
98
100
73
71
37
43
62
93
77
33
96
74
59

Low Clouds (% Sky Obscured)

89
38
22
31
65
50
45
28
39
84
63
76
33
23
17
22
21
31
23
11
3
2
18
31

Medium Clouds (% Sky Obscured)

90
93
91
66
27
12
13
11
6
9
20
45
84
28
21
20
27
14
9
20
6
3
10
21

High Clouds (% Sky Obscured)

86
77
77
46
1
3
5
9
18
21
41
91
99
63
64
13
21
41
91
73
28
95
70
38

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
10
10
10
9
8
8
7
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
Light Rain
Light Rain
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
Very Light Rain
None
None

Precipitation Probability (%)

57
65
64
56
48
39
20
17
14
11
14
28
40
48
52
54
38
25
21
18
20
7
4
5

Precipitation Amount (mm)

0.35
0.57
0.56
0.43
0.34
0.23
0.08
0.1
0.11
0.08
0.1
0.19
0.29
0.43
0.41
0.45
0.18
0.09
0.07
0.05
0.09
0.03
0.01
0.01

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

7
7
7
7
10
11
13
14
15
15
15
14
13
13
13
12
12
11
8
7
7
6
5
5

Dew Point (°C)

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

Relative Humidity (%)

97
100
100
100
100
98
91
83
75
72
73
80
85
88
90
92
93
94
94
94
94
92
93
94

Pressure (mb)

1010
1010
1011
1011
1012
1012
1012
1013
1013
1013
1013
1014
1014
1014
1015
1015
1016
1016
1016
1016
1016
1016
1016
1016

Ozone (du)

390
392
393
391
391
391
391
390
390
391
390
390
389
389
388
382
382
382
383
385
386
389
389
390

Wednesday 19

First Quarter 50%

12:11

03:35

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
00 Bad
01 Bad
02 Good
03 Good
04 Good

Sun - Rise: 05:46, Set: 21:31, Transit: 13:39. Moon - Rise: 12:11, Set: 03:35. Civil Dark: 22:13 - 05:05. Nautical Dark: 23:10 - 04:05. Astro Dark: 00:39 - 02:32

Total Clouds (% Sky Obscured)

85
88
97
99
99
97
92
95
73
96
93
65
45
76
43
66
66
66
66
66
66
1
1
1

Low Clouds (% Sky Obscured)

12
12
0
2
99
77
84
87
48
83
66
20
21
26
16
47
47
47
47
47
47
1
1
1

Medium Clouds (% Sky Obscured)

41
29
85
95
81
81
83
85
50
90
88
58
28
23
10
20
20
20
20
20
20
0
0
0

High Clouds (% Sky Obscured)

82
84
89
93
87
88
33
31
39
41
16
16
22
66
31
38
38
38
38
38
38
0
0
0

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

Precipitation Probability (%)

5
8
11
32
33
40
41
48
38
45
38
29
35
38
50
51
28
11
4
0
0
4
5
4

Precipitation Amount (mm)

0.02
0.03
0.06
0.13
0.12
0.16
0.19
0.4
0.35
0.4
0.36
0.3
0.42
0.4
0.56
0.54
0.23
0.05
0.01
0
0
0.01
0.01
0.02

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

95
97
98
100
100
100
97
91
89
87
85
82
84
85
89
93
93
93
92
93
93
92
95
96

Pressure (mb)

1016
1016
1017
1017
1017
1017
1017
1017
1017
1017
1018
1018
1018
1018
1018
1019
1019
1020
1021
1021
1021
1021
1022
1022

Ozone (du)

389
389
389
393
393
392
392
391
391
393
394
395
395
394
391
387
384
380
377
373
369
369
368
366

Thursday 20

Waxing Gibbous 61%

13:28

03:55

05 Good
06 Good
07 Good
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
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad

Sun - Rise: 05:45, Set: 21:32, Transit: 13:39. Moon - Rise: 13:28, Set: 03:55. Civil Dark: 22:14 - 05:03. Nautical Dark: 23:12 - 04:03. Astro Dark: 00:45 - 02:27

Total Clouds (% Sky Obscured)

1
1
1
48
48
48
48
48
48
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

1
1
1
48
48
48
48
48
48
48
48
48
48
48
48
0
0
0
0
0
0
2
2
2

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
85
85
85
85
85
85
100
100
100
100
100
100
100
100
100

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
98
98
98
98
98
98
100
100
100
100
100
100
100
100
100

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
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
None
None
None
None
None
None
None

Precipitation Probability (%)

4
4
4
3
4
7
10
11
9
10
8
7
7
6
7
2
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0.02
0.02
0.02
0.01
0.01
0.04
0.08
0.1
0.08
0.14
0.15
0.12
0.13
0.12
0.15
0.02
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

7
7
7
9
10
11
12
13
14
16
17
17
17
16
16
16
15
13
12
12
11
11
11
11

Feels Like (°C)

5
5
6
7
10
11
12
13
14
16
17
17
17
16
16
16
15
13
12
12
11
11
11
11

Dew Point (°C)

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

Relative Humidity (%)

98
98
99
99
98
96
92
85
78
71
66
63
66
65
67
69
72
75
78
79
79
78
78
78

Pressure (mb)

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

Ozone (du)

366
365
365
361
364
365
364
363
363
357
358
362
363
363
363
345
342
341
339
338
336
335
333
332

Friday 21

Waxing Gibbous 72%

14:48

04:13

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
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad

Sun - Rise: 05:44, Set: 21:34, Transit: 13:39. Moon - Rise: 14:48, Set: 04:13. Civil Dark: 22:16 - 05:02. Nautical Dark: 23:14 - 04:01. Astro Dark: 00:51 - 02:20

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
47
47
47
47
47
47
50
50
50
50
50
50
100
100
100

Low Clouds (% Sky Obscured)

2
2
2
91
91
91
91
91
91
36
36
36
36
36
36
22
22
22
22
22
22
98
98
98

Medium Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
37
37
37
37
37
37
31
31
31
31
31
31
98
98
98

High Clouds (% Sky Obscured)

100
100
100
0
0
0
0
0
0
0
0
0
0
0
0
31
31
31
31
31
31
91
91
91

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
9
9
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
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
0
0
0
0
0
3
8
11
28
38
46
32
22
26
30
31
34
33
17
11
9
8

Precipitation Amount (mm)

0
0
0
0
0
0
0
0.02
0.08
0.15
0.27
0.3
0.3
0.2
0.15
0.14
0.17
0.19
0.2
0.15
0.09
0.05
0.02
0.02

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

79
79
79
80
76
71
67
66
69
71
81
89
99
97
90
84
87
93
97
96
93
91
92
96

Pressure (mb)

1016
1016
1015
1015
1015
1014
1013
1013
1012
1011
1011
1010
1009
1008
1007
1006
1006
1006
1006
1006
1006
1006
1006
1006

Ozone (du)

333
333
333
339
342
346
350
356
359
361
362
365
363
364
363
362
365
369
371
371
370
369
370
371

Saturday 22

Waxing Gibbous 82%

16:10

04:30

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 OK
21 OK
22 OK
23 OK
00 OK
01 Good
02 Good
03 Good
04 Good

Sun - Rise: 05:43, Set: 21:35, Transit: 13:39. Moon - Rise: 16:10, Set: 04:30. Civil Dark: 22:17 - 04:59. Nautical Dark: 23:16 - 04:00. Astro Dark: 00:57 - 02:13

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
49
49
49
49
49
49
14
14
14
14
14
14
14
14
14

Low Clouds (% Sky Obscured)

98
98
98
98
98
98
98
98
98
26
26
26
26
26
26
14
14
14
14
14
14
14
14
14

Medium Clouds (% Sky Obscured)

98
98
98
100
100
100
100
100
100
40
40
40
40
40
40
2
2
2
2
2
2
0
0
0

High Clouds (% Sky Obscured)

91
91
91
0
0
0
0
0
0
3
3
3
3
3
3
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
10
10
10
9
8
9
9
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
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
None
None
None
None
None
None

Precipitation Probability (%)

13
10
9
8
8
12
18
21
21
26
23
19
18
21
24
23
18
10
5
3
0
0
0
0

Precipitation Amount (mm)

0.03
0.02
0.02
0.02
0.03
0.07
0.12
0.14
0.15
0.15
0.14
0.14
0.15
0.18
0.21
0.2
0.13
0.06
0.02
0.01
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

98
97
95
94
91
89
87
87
87
84
79
75
71
70
71
72
73
73
75
79
84
86
85
83

Pressure (mb)

1006
1006
1006
1006
1006
1006
1006
1006
1006
1006
1006
1007
1007
1007
1007
1007
1008
1009
1009
1009
1010
1010
1010
1010

Ozone (du)

373
377
381
385
387
388
389
387
383
381
382
384
386
385
383
382
382
383
382
378
372
368
367
368

Sunday 23

Waxing Gibbous 90%

17:34

04:49

05 OK
06 OK
07 OK
08 Good
09 Good
10 Good
11 Good
12 Good
13 Good
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

Sun - Rise: 05:41, Set: 21:36, Transit: 13:39. Moon - Rise: 17:34, Set: 04:49. Civil Dark: 22:19 - 04:58. Nautical Dark: 23:18 - 03:58. Astro Dark: 01:05 - 02:04

Total Clouds (% Sky Obscured)

14
14
14
6
6
6
6
6
6
84
84
84
84
84
84
56
56
56
56
56
56
100
100
100

Low Clouds (% Sky Obscured)

14
14
14
6
6
6
6
6
6
82
82
82
82
82
82
14
14
14
14
14
14
100
100
100

Medium Clouds (% Sky Obscured)

0
0
0
1
1
1
1
1
1
27
27
27
27
27
27
54
54
54
54
54
54
100
100
100

High Clouds (% Sky Obscured)

0
0
0
1
1
1
1
1
1
0
0
0
0
0
0
2
2
2
2
2
2
100
100
100

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

Precipitation Probability (%)

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

Precipitation Amount (mm)

0.01
0.01
0.02
0.02
0.02
0.01
0.01
0.02
0.03
0.05
0.07
0.09
0.11
0.13
0.14
0.13
0.08
0.03
0.01
0
0
0
0
0

Wind Speed/Direction (mph)

16
16
17
17
17
17
17
16
16
15
14
13
11
10
9
8
7
6
5
6
7
8
8
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

8
8
8
9
9
9
9
9
9
9
9
9
9
9
8
9
9
9
8
8
8
7
7
7

Relative Humidity (%)

82
83
85
86
84
82
79
77
75
72
68
62
58
54
54
55
62
69
75
80
82
83
83
82

Pressure (mb)

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

Ozone (du)

369
368
368
369
370
373
374
373
372
370
371
372
373
374
375
376
377
378
378
378
377
376
375
373

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

Generated: 17/05/21 05:58:25. Forecast: 17/05/21 to 23/05/21. Timezone: UTC+2.00