Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 28

Waning Gibbous 74%

01:58

08:42

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

Sun - Rise: 05:38, Set: 20:22, Transit: 13:00. Moon - Rise: 01:58, Set: 08:42. Civil Dark: 20:59 - 05:01. Nautical Dark: 21:45 - 04:13. Astro Dark: 22:42 - 03:15

Total Clouds (% Sky Obscured)

23
20
15
0
18
15
6
31
60
100
100
89
100
100
98
65
39
52
15
7
55
41
22
34

Low Clouds (% Sky Obscured)

10
0
0
0
25
18
2
15
20
29
35
27
38
40
16
21
41
51
6
1
25
44
23
36

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
2
2
8
45
17
39
65
53
52
29
2
3
2
2
0
22
15
18

High Clouds (% Sky Obscured)

0
3
3
0
0
0
3
21
57
100
100
79
100
100
95
42
3
18
10
3
43
3
1
0

ISS Passover

Visibility (miles)

9
8
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
1
0
0
0
0
4
2
2
2
2
0
1
1
0
1
1
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
5
5
4
4
5
5
5
5
5
6
10
14
16
17
18
18
18
18
17
15
13
11
10

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

91
93
91
91
91
91
93
93
91
91
91
87
84
80
75
73
70
69
69
70
72
79
83
85

Pressure (mb)

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

Ozone (du)

473
467
461
455
452
447
446
444
441
440
442
441
437
435
437
436
433
435
440
440
435
425
428
431

Monday 29

Waning Gibbous 64%

02:43

09:58

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

Sun - Rise: 05:36, Set: 20:23, Transit: 13:00. Moon - Rise: 02:43, Set: 09:58. Civil Dark: N/A - 04:59. Nautical Dark: 21:47 - 04:10. Astro Dark: 22:45 - 03:11

Total Clouds (% Sky Obscured)

32
8
7
22
16
15
1
3
6
27
40
45
45
45
68
63
43
8
19
51
58
90
98
93

Low Clouds (% Sky Obscured)

33
3
0
0
0
0
0
0
1
9
6
4
2
0
7
3
3
4
17
41
31
56
79
78

Medium Clouds (% Sky Obscured)

17
6
7
20
14
12
0
0
0
8
45
45
40
45
65
63
40
0
2
4
43
57
51
42

High Clouds (% Sky Obscured)

0
0
0
0
0
0
2
3
6
12
60
65
6
31
64
52
53
4
8
21
11
7
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
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
2
18
9
5
3
1
4
6
22
28
14

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
8
7
7
7
7
7
7
7
7
10
14
15
15
15
15
15
15
14
13
11
9
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

90
90
90
91
93
93
95
93
93
93
93
88
84
80
80
82
82
79
75
72
75
80
90
92

Pressure (mb)

1015
1015
1015
1015
1014
1014
1014
1013
1013
1013
1012
1012
1012
1012
1011
1011
1011
1011
1010
1010
1010
1009
1009
1009

Ozone (du)

430
426
424
427
432
434
437
434
434
433
430
429
429
430
433
435
436
439
439
438
437
437
437
436

Tuesday 30

Waning Gibbous 53%

03:14

11:22

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
17 Bad
18 Bad
19 Bad
20 Bad

Sun - Rise: 05:34, Set: 20:25, Transit: 13:00. Moon - Rise: 03:14, Set: 11:22. Civil Dark: 21:01 - 04:57. Nautical Dark: 21:49 - 04:08. Astro Dark: 22:48 - 03:08

Total Clouds (% Sky Obscured)

97
98
100
78
100
97
100
99
97
99
88
81
85
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

84
83
75
58
73
43
48
42
31
50
46
40
45
78
78
75
60
54
47
40
32
86
87
90

Medium Clouds (% Sky Obscured)

40
42
41
38
49
46
60
40
42
29
65
67
64
63
69
94
100
100
100
100
93
100
100
100

High Clouds (% Sky Obscured)

3
3
35
35
66
91
98
96
95
96
60
60
60
100
98
100
100
100
80
79
98
72
96
92

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
3
4

Fog (%)

0
0
0
0
0
0
0
1
3
8
2
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
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

12
7
8
12
8
2
1
0
0
0
0
0
2
4
17
19
35
37
42
39
35
71
87
94

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.4
0.6
0.7

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

95
93
92
95
96
95
95
96
96
98
96
92
86
80
78
84
80
87
89
95
95
96
96
98

Pressure (mb)

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

Ozone (du)

437
438
441
442
437
432
426
423
424
425
424
422
422
422
418
415
413
410
406
405
403
404
402
400

Wednesday 1

Third Quarter 41%

03:37

12:50

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
17 Bad
18 Bad
19 Bad
20 Bad

Sun - Rise: 05:32, Set: 20:26, Transit: 12:59. Moon - Rise: 03:37, Set: 12:50. Civil Dark: 21:03 - 04:55. Nautical Dark: 21:51 - 04:05. Astro Dark: 22:51 - 03:05

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
99
99
98
98
99
99
89
79
73
82
81
79
79
79

Low Clouds (% Sky Obscured)

91
94
97
100
100
100
100
89
80
70
65
59
54
61
68
72
67
60
56
58
53
45
41
13

Medium Clouds (% Sky Obscured)

100
99
99
98
99
99
100
100
100
100
99
98
96
79
55
48
38
24
24
51
33
36
33
30

High Clouds (% Sky Obscured)

88
84
80
81
87
94
100
100
100
100
89
76
63
73
69
72
54
23
65
33
3
5
5
27

ISS Passover

Visibility (miles)

4
3
4
2
2
2
1
0
1
1
3
4
4
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

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

Precipitation Probability (%)

95
95
95
95
95
95
95
95
95
95
88
93
72
45
27
7
5
14
5
6
4
10
1
0

Precipitation Amount (mm)

1.2
0.9
0.9
1.4
1
0.9
1.8
2.5
1.6
0.9
0.4
0.5
0.3
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

6
5
7
7
7
8
8
9
8
9
10
10
11
12
13
13
15
14
15
14
13
12
10
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

98
98
98
98
98
98
100
98
100
98
98
96
98
96
96
96
95
92
87
83
87
87
87
89

Pressure (mb)

1008
1008
1007
1007
1006
1006
1005
1005
1005
1005
1005
1005
1005
1006
1006
1006
1007
1007
1007
1008
1008
1009
1009
1010

Ozone (du)

397
395
393
391
388
386
383
382
382
382
383
383
383
384
385
386
389
389
388
391
392
392
391
389

Thursday 2

Waning Crescent 29%

03:55

14:17

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
17 Bad
18 Bad
19 Bad
20 Bad

Sun - Rise: 05:31, Set: 20:28, Transit: 12:59. Moon - Rise: 03:55, Set: 14:17. Civil Dark: 21:04 - 04:53. Nautical Dark: 21:53 - 04:03. Astro Dark: 22:54 - 03:01

Total Clouds (% Sky Obscured)

60
68
58
91
94
97
100
95
69
93
89
100
98
100
92
92
89
86
82
86
81
81
70
69

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
6
11
16
17
17
18
31
31
35
43
55
73
79
81
83
81
80

Medium Clouds (% Sky Obscured)

30
44
33
89
87
98
77
77
67
83
84
60
90
70
48
54
55
48
45
46
39
27
22
23

High Clouds (% Sky Obscured)

8
14
10
55
67
33
100
72
45
70
51
100
73
100
84
75
64
54
46
43
44
45
54
72

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
1
1
0
15
18
17
15
14
11
9
11
8
14
10
12
13
11
3
9
10

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

93
95
95
93
95
91
91
93
95
95
91
84
78
77
73
70
69
69
70
70
74
79
83
86

Pressure (mb)

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

Ozone (du)

388
388
387
388
393
388
385
386
386
385
386
387
385
385
384
385
387
388
389
390
391
393
394
398

Friday 3

Waning Crescent 19%

04:09

15:44

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
17 Bad
18 Bad
19 Bad
20 Bad

Sun - Rise: 05:29, Set: 20:30, Transit: 12:59. Moon - Rise: 04:09, Set: 15:44. Civil Dark: 21:06 - 04:51. Nautical Dark: 21:56 - 04:01. Astro Dark: 22:58 - 02:58

Total Clouds (% Sky Obscured)

68
67
65
63
79
88
98
95
93
91
94
96
98
97
97
96
88
81
72
78
86
95
86
74

Low Clouds (% Sky Obscured)

78
72
65
63
69
76
83
85
87
89
91
92
93
93
94
95
84
75
65
61
57
52
37
21

Medium Clouds (% Sky Obscured)

25
26
24
23
32
39
46
37
37
44
66
76
84
81
79
73
53
32
19
24
30
36
48
56

High Clouds (% Sky Obscured)

69
49
20
0
12
26
39
29
13
0
0
0
0
1
1
2
2
3
4
31
55
80
63
47

ISS Passover

Visibility (miles)

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

5
17
23
23
32
38
46
48
46
44
45
43
39
39
39
37
37
32
13
29
32
26
25
19

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

90
93
93
95
95
95
93
93
93
91
91
88
84
81
84
87
88
84
81
77
80
84
87
88

Pressure (mb)

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

Ozone (du)

401
404
410
415
421
419
418
417
418
419
420
415
410
405
404
402
401
399
398
396
399
401
404
405

Saturday 4

Waning Crescent 10%

04:23

17:12

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

Sun - Rise: 05:27, Set: 20:31, Transit: 12:59. Moon - Rise: 04:23, Set: 17:12. Civil Dark: 21:08 - 04:49. Nautical Dark: 21:58 - 03:58. Astro Dark: 23:01 - 02:54

Total Clouds (% Sky Obscured)

64
67
67
67
52
49
50
45
40
30
32
33
30
28
27
20
24
23
32
34
57
70

Low Clouds (% Sky Obscured)

5
15
24
34
43
52
61
52
46
40
43
46
44
48
46
45
52
55
57
46
35
26

Medium Clouds (% Sky Obscured)

70
65
65
60
60
55
45
45
40
40
39
36
29
20
11
2
18
33
45
46
51
56

High Clouds (% Sky Obscured)

34
39
40
49
43
37
24
42
60
80
68
56
49
33
17
1
1
0
0
7
17
27

ISS Passover

Visibility (miles)

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

Fog (%)

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

Precipitation Probability (%)

5
14
15
5
19
23
21
24
20
16
19
16
12
13
15
13
23
27
30
33
31
23

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

91
96
95
95
95
95
95
95
93
91
91
88
85
83
83
83
83
81
81
80
81
81

Pressure (mb)

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

Ozone (du)

407
409
407
406
405
404
402
401
400
398
397
400
403
405
412
419
425
426
426
426
420
414

Forecast for Chichester, West Sussex, United Kingdom (50.84,-0.77)

Generated: 28/04/24 21:14:22. Forecast: 28/04/24 to 04/05/24. Timezone: UTC+1.00