Clear Outside v1.0 - International Weather Forecasts For Astronomers

Saturday 20

Waning Gibbous 97%

21:30

07:22

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

Sun - Rise: 05:55, Set: 20:10, Transit: 13:03. Moon - Rise: 21:30, Set: 07:22. Civil Dark: 20:46 - 05:18. Nautical Dark: 21:32 - 04:32. Astro Dark: 22:25 - 03:39

Total Clouds (% Sky Obscured)

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

Low Clouds (% Sky Obscured)

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

Medium Clouds (% Sky Obscured)

0
0
0
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)

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

ISS Passover

Visibility (miles)

6
6
7
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

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)

9
10
9
8
6
5
5
5
6
6
5
5
4
4
4
3
3
3
3
3
3
4
4
4

Chance of Frost

Temperature (°C)

21
22
23
23
23
23
22
19
16
14
12
11
10
9
8
7
7
6
7
9
13
16
18
20

Feels Like (°C)

21
22
23
23
23
23
22
19
16
14
12
11
10
8
8
7
7
6
7
9
13
16
18
20

Dew Point (°C)

8
8
8
10
11
11
11
10
9
7
7
6
5
5
4
4
3
3
3
4
6
7
8
8

Relative Humidity (%)

42
39
38
42
46
48
51
54
61
65
68
70
72
73
74
77
79
80
78
70
61
56
51
47

Pressure (mb)

1031
1030
1030
1029
1029
1028
1028
1028
1028
1028
1028
1028
1027
1027
1026
1026
1025
1025
1024
1024
1024
1023
1022
1022

Ozone (du)

356
356
356
356
357
358
359
360
360
359
358
356
355
354
354
354
354
354
354
355
356
356
356
356

Sunday 21

Waning Gibbous 91%

22:47

07:53

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

Sun - Rise: 05:53, Set: 20:12, Transit: 13:03. Moon - Rise: 22:47, Set: 07:53. Civil Dark: 20:48 - 05:16. Nautical Dark: 21:34 - 04:30. Astro Dark: 22:28 - 03:35

Total Clouds (% Sky Obscured)

0
0
0
0
0
0
0
2
6
8
9
6
1
0
0
1
5
4
5
21
35
100
81
34

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
2
6
8
9
6
1
0
0
1
5
4
5
6
6
2
2
4

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3
57
30

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
16
31
100
79
3

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
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
1

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
0.01

Wind Speed/Direction (mph)

4
4
4
4
3
3
3
3
5
6
6
6
6
5
5
5
5
6
7
7
8
9
10
11

Chance of Frost

Temperature (°C)

21
22
23
23
23
22
21
19
16
14
12
11
10
9
8
7
7
7
7
10
14
16
18
20

Feels Like (°C)

21
22
23
23
23
22
21
19
16
14
12
11
10
8
7
6
5
5
5
10
14
16
18
20

Dew Point (°C)

8
7
7
6
7
8
9
8
7
6
6
6
6
5
4
3
2
2
3
5
7
9
10
10

Relative Humidity (%)

43
39
35
35
36
40
44
49
55
60
67
72
75
76
75
74
74
74
72
69
65
62
58
54

Pressure (mb)

1021
1020
1019
1018
1017
1017
1016
1016
1016
1016
1015
1015
1014
1013
1013
1012
1011
1011
1010
1010
1009
1008
1008
1007

Ozone (du)

356
355
355
354
354
354
354
354
354
355
356
358
360
362
363
364
364
363
362
361
360
359
360
361

Monday 22

Waning Gibbous 84%

23:58

08:30

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

Sun - Rise: 05:51, Set: 20:13, Transit: 13:03. Moon - Rise: 23:58, Set: 08:30. Civil Dark: 20:50 - 05:14. Nautical Dark: 21:36 - 04:27. Astro Dark: 22:31 - 03:32

Total Clouds (% Sky Obscured)

51
42
25
86
89
31
86
91
97
96
99
12
14
23
83
95
84
38
21
21
21
21
21
21

Low Clouds (% Sky Obscured)

6
6
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

45
40
23
6
0
0
1
13
77
87
67
11
14
23
83
95
82
2
7
7
7
7
7
7

High Clouds (% Sky Obscured)

14
5
3
85
89
30
86
91
92
84
98
0
0
0
0
0
6
36
15
15
15
15
15
15

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

Precipitation Probability (%)

1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0.01
0.01
0.01
0.01
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
13
13
12
10
9
8
7
7
6
6
6
6
6
6
6
6
7
7
8
8
9
10

Chance of Frost

Temperature (°C)

21
22
23
23
23
22
20
19
17
15
13
12
12
11
10
10
9
8
9
12
15
17
19
20

Feels Like (°C)

21
22
23
23
23
22
20
19
17
15
13
12
12
11
10
8
7
7
8
12
15
17
19
20

Dew Point (°C)

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

Relative Humidity (%)

50
46
43
41
42
44
47
50
53
57
62
65
67
70
73
77
83
88
87
78
70
65
60
57

Pressure (mb)

1006
1006
1005
1004
1004
1003
1003
1003
1003
1003
1002
1002
1002
1001
1001
1000
1000
1000
1000
999
999
999
999
999

Ozone (du)

362
362
362
362
362
361
361
360
360
359
359
358
358
358
359
360
362
364
365
365
365
365
366
367

Tuesday 23

Waning Gibbous 76%

01:02

09:14

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
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad

Sun - Rise: 05:49, Set: 20:15, Transit: 13:03. Moon - Rise: 01:02, Set: 09:14. Civil Dark: 20:52 - 05:12. Nautical Dark: 21:39 - 04:25. Astro Dark: 22:34 - 03:29

Total Clouds (% Sky Obscured)

88
88
88
88
88
88
96
96
96
96
96
96
80
80
80
80
80
80
59
59
59
59
59
59

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
9
9
9
9
9
9

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
26
26
26
26
26
26
37
37
37
37
37
37
25
25
25
25
25
25

High Clouds (% Sky Obscured)

88
88
88
88
88
88
95
95
95
95
95
95
73
73
73
73
73
73
40
40
40
40
40
40

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
9
5
2
0
0

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

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
4
9
16
27
39
46
51
43
25

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.01
0.02
0.04
0.11
0.23
0.5
0.9
1.12
0.86
0.44

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

53
50
48
48
47
48
49
51
54
58
62
65
68
71
74
76
77
75
73
70
65
63
65
70

Pressure (mb)

998
998
997
997
997
997
996
997
997
997
997
996
996
995
995
995
994
994
994
994
994
994
994
994

Ozone (du)

368
367
365
364
364
364
364
365
365
366
367
367
368
368
369
370
372
375
377
377
376
376
376
377

Wednesday 24

Waning Gibbous 66%

01:57

10:05

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 Good
02 Good
03 OK
04 OK
05 OK
06 OK
07 OK
08 OK
09 Bad
10 Bad
11 Bad
12 Bad

Sun - Rise: 05:47, Set: 20:17, Transit: 13:03. Moon - Rise: 01:57, Set: 10:05. Civil Dark: 20:54 - 05:10. Nautical Dark: 21:41 - 04:22. Astro Dark: 22:37 - 03:25

Total Clouds (% Sky Obscured)

81
81
81
81
81
81
70
70
70
70
70
70
1
1
1
1
1
1
35
35
35
35
35
35

Low Clouds (% Sky Obscured)

21
21
21
21
21
21
12
12
12
12
12
12
0
0
0
0
0
0
13
13
13
13
13
13

Medium Clouds (% Sky Obscured)

68
68
68
68
68
68
69
69
69
69
69
69
1
1
1
1
1
1
12
12
12
12
12
12

High Clouds (% Sky Obscured)

39
39
39
39
39
39
0
0
0
0
0
0
0
0
0
0
0
0
25
25
25
25
25
25

ISS Passover

Visibility (miles)

1
5
10
10
10
10
10
10
10
10
10
10
10
10
8
6
8
10
10
10
10
10
10
7

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
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

Precipitation Probability (%)

18
14
14
15
14
10
0
0
0
2
0
0
9
14
17
20
18
17
15
13
11
14
22
35

Precipitation Amount (mm)

0.21
0.15
0.18
0.19
0.11
0.03
0
0
0
0.01
0
0
0.01
0.03
0.08
0.14
0.11
0.08
0.06
0.04
0.03
0.05
0.1
0.18

Wind Speed/Direction (mph)

10
12
15
16
15
13
12
11
11
11
11
12
13
14
16
17
16
16
16
18
21
24
26
29

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

73
74
73
70
68
65
64
65
69
72
76
79
81
82
81
81
83
83
83
78
72
69
71
75

Pressure (mb)

994
994
995
995
995
995
996
996
996
996
996
995
995
994
993
993
993
992
992
992
992
992
992
991

Ozone (du)

378
382
386
392
398
405
410
412
411
409
405
400
397
398
400
403
404
406
406
406
406
404
399
393

Thursday 25

Waning Gibbous 57%

02:42

11:03

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

Sun - Rise: 05:45, Set: 20:18, Transit: 13:03. Moon - Rise: 02:42, Set: 11:03. Civil Dark: 20:55 - 05:07. Nautical Dark: 21:43 - 04:20. Astro Dark: 22:40 - 03:22

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
38
38
38
38
38
38
9
9
9
9
9
9
27
27
27
27
27
27

Low Clouds (% Sky Obscured)

99
99
99
99
99
99
21
21
21
21
21
21
8
8
8
8
8
8
26
26
26
26
26
26

Medium Clouds (% Sky Obscured)

97
97
97
97
97
97
31
31
31
31
31
31
4
4
4
4
4
4
7
7
7
7
7
7

High Clouds (% Sky Obscured)

79
79
79
79
79
79
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

4
3
2
2
1
1
2
6
10
10
10
10
10
10
10
10
10
10
10
10
7
4
3
3

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

Precipitation Probability (%)

47
54
54
51
47
42
33
21
13
11
10
7
5
0
0
0
0
0
0
12
16
19
19
18

Precipitation Amount (mm)

0.25
0.28
0.29
0.29
0.25
0.19
0.12
0.06
0.03
0.03
0.02
0.01
0.01
0
0
0
0
0
0
0.01
0.03
0.06
0.06
0.05

Wind Speed/Direction (mph)

30
28
25
23
20
19
17
16
16
16
16
16
17
16
15
15
14
14
14
14
15
16
17
19

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

11
11
11
11
11
11
11
11
11
10
6
6
5
5
4
4
4
4
4
5
6
6
6
10

Dew Point (°C)

7
7
7
7
7
7
6
6
6
5
5
5
5
5
4
4
4
4
4
5
5
5
5
4

Relative Humidity (%)

77
77
78
76
74
72
70
69
71
73
75
78
79
79
78
78
78
80
80
78
76
73
70
66

Pressure (mb)

992
992
993
993
994
995
996
996
997
998
999
999
1000
1000
1001
1001
1001
1002
1003
1004
1005
1006
1007
1008

Ozone (du)

388
387
387
388
389
391
393
397
401
404
405
406
407
409
411
413
415
417
420
423
427
431
434
437

Friday 26

Third Quarter 47%

03:18

12:04

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

Sun - Rise: 05:43, Set: 20:20, Transit: 13:02. Moon - Rise: 03:18, Set: 12:04. Civil Dark: 20:57 - 05:05. Nautical Dark: 21:45 - 04:17. Astro Dark: 22:43 - 03:19

Total Clouds (% Sky Obscured)

76
76
76
76
76
76
20
20
20
20
20
20
100
100
100
100
100
100
44
44
44
44
44
44

Low Clouds (% Sky Obscured)

16
16
16
16
16
16
12
12
12
12
12
12
2
2
2
2
2
2
38
38
38
38
38
38

Medium Clouds (% Sky Obscured)

37
37
37
37
37
37
17
17
17
17
17
17
100
100
100
100
100
100
27
27
27
27
27
27

High Clouds (% Sky Obscured)

67
67
67
67
67
67
0
0
0
0
0
0
61
61
61
61
61
61
0
0
0
0
0
0

ISS Passover

Visibility (miles)

5
8
10
10
10
6
4
7
10
10
10
10
10
10
7
4
2
2
1
1
1
1
4
7

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
None
None
None
None
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
Very Light Rain
Very Light Rain

Precipitation Probability (%)

19
20
20
19
18
10
3
0
0
0
10
22
45
61
74
80
83
83
82
79
73
60
42
24

Precipitation Amount (mm)

0.07
0.14
0.24
0.28
0.18
0.05
0.01
0
0
0
0.01
0.04
0.11
0.24
0.49
0.72
0.81
0.85
0.86
0.76
0.59
0.41
0.22
0.07

Wind Speed/Direction (mph)

20
21
21
21
19
16
14
13
13
14
15
17
18
19
19
19
16
13
11
10
11
12
12
13

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

11
12
12
12
11
11
11
10
6
6
5
5
5
5
5
5
5
5
6
6
7
7
7
10

Dew Point (°C)

4
4
4
4
4
4
4
4
3
3
4
5
5
6
6
7
6
6
6
6
7
7
7
7

Relative Humidity (%)

61
57
56
57
61
65
66
66
67
67
71
75
79
81
83
85
86
86
86
86
84
84
85
82

Pressure (mb)

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

Ozone (du)

438
435
429
423
415
407
400
397
395
393
392
391
390
388
387
386
386
386
388
390
393
395
394
392

Forecast for Culham, Oxfordshire, UK (51.66,-1.27)

Generated: 20/04/19 13:48:25. Forecast: 20/04/19 to 26/04/19. Timezone: UTC+1.00