Clear Outside v1.0 - International Weather Forecasts For Astronomers

Wednesday 24

Full Moon 99%

21:12

05:54

17 Bad
18 Bad
19 Bad
20 OK
21 OK
22 Good
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: 05:38, Set: 20:11, Transit: 12:55. Moon - Rise: 21:12, Set: 05:54. Civil Dark: 20:48 - 05:01. Nautical Dark: 21:36 - 04:13. Astro Dark: 22:33 - 03:15

Total Clouds (% Sky Obscured)

92
84
72
48
18
3
12
78
86
94
93
93
100
100
100
100
96
85
92
100
100
93
98
96

Low Clouds (% Sky Obscured)

63
40
25
8
21
1
12
53
58
57
56
62
71
60
85
77
12
26
45
70
87
43
74
60

Medium Clouds (% Sky Obscured)

28
35
0
0
0
0
0
0
0
0
2
18
50
50
63
99
87
73
71
94
99
89
96
89

High Clouds (% Sky Obscured)

0
0
0
0
0
0
1
48
68
88
71
62
100
100
100
48
25
15
61
65
70
70
60
27

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
17
7
15
25
16
30
32
34
27

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)

11
11
9
6
4
3
3
3
4
4
5
5
5
6
5
8
10
12
11
10
11
13
11
11

Chance of Frost

Temperature (°C)

8
8
7
6
5
4
3
3
2
2
2
3
3
3
4
5
7
9
10
11
11
11
10
10

Feels Like (°C)

3
4
5
4
3
3
2
2
-1
-1
-1
-2
-1
-0
1
1
2
4
5
7
6
7
6
6

Dew Point (°C)

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

Relative Humidity (%)

62
68
73
82
88
88
88
88
89
89
91
91
91
91
85
75
74
67
63
60
59
76
76
74

Pressure (mb)

1014
1014
1014
1014
1014
1014
1013
1013
1012
1012
1011
1010
1009
1008
1008
1007
1007
1006
1005
1004
1004
1004
1003
1003

Ozone (du)

415
417
417
416
415
412
413
413
414
417
418
419
420
421
421
421
423
422
421
420
419
419
419
419

Thursday 25

Waning Gibbous 96%

22:31

06:14

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
14 Bad
15 Bad
16 Bad

Sun - Rise: 05:36, Set: 20:13, Transit: 12:55. Moon - Rise: 22:31, Set: 06:14. Civil Dark: 20:50 - 04:59. Nautical Dark: 21:38 - 04:10. Astro Dark: 22:36 - 03:12

Total Clouds (% Sky Obscured)

92
97
97
94
95
100
96
91
97
97
92
95
95
86
96
99
100
100
93
97
96
94
94
88

Low Clouds (% Sky Obscured)

51
49
76
78
82
89
80
79
75
42
10
17
6
10
7
21
34
38
32
83
87
61
89
70

Medium Clouds (% Sky Obscured)

52
52
50
39
44
50
44
40
50
64
79
73
57
65
85
94
99
91
71
53
44
74
75
75

High Clouds (% Sky Obscured)

3
2
2
3
3
4
3
4
26
43
50
71
83
57
46
64
83
90
72
61
41
65
5
4

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

25
43
32
33
40
44
41
18
12
8
1
0
0
2
1
1
2
1
1
2
2
2
3
1

Precipitation Amount (mm)

0
0
0
0
0
0.2
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

7
6
6
6
4
3
3
3
2
2
1
1
0
-0
1
2
3
4
5
6
7
7
8
8

Dew Point (°C)

5
5
6
6
6
5
5
4
4
4
3
3
3
2
2
2
3
3
2
2
3
4
5
5

Relative Humidity (%)

72
73
82
90
93
96
94
93
93
94
93
94
93
93
91
83
78
71
64
61
60
61
65
65

Pressure (mb)

1003
1003
1003
1003
1003
1003
1004
1003
1003
1003
1003
1004
1004
1004
1004
1005
1005
1005
1005
1005
1005
1005
1005
1005

Ozone (du)

419
419
420
422
422
422
422
423
424
423
423
422
421
421
423
424
425
426
427
428
431
433
434
438

Friday 26

Waning Gibbous 91%

23:49

06:44

17 Bad
18 OK
19 Good
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: 05:34, Set: 20:14, Transit: 12:55. Moon - Rise: 23:49, Set: 06:44. Civil Dark: 20:52 - 04:56. Nautical Dark: 21:40 - 04:08. Astro Dark: 22:39 - 03:08

Total Clouds (% Sky Obscured)

71
37
17
73
87
97
100
100
100
90
97
100
100
100
100
99
100
100
100
100
100
100
93
96

Low Clouds (% Sky Obscured)

24
6
2
1
1
1
1
6
23
29
60
84
89
90
92
98
94
91
93
85
88
83
89
88

Medium Clouds (% Sky Obscured)

67
26
13
20
31
36
100
100
100
93
91
100
100
100
100
98
88
67
57
57
78
65
76
68

High Clouds (% Sky Obscured)

2
16
4
46
81
92
100
99
59
50
82
51
84
89
30
47
60
58
58
86
94
100
80
74

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
5
3
2
3
9
9
2
2
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
0
0
0

Precipitation Type

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

Precipitation Probability (%)

2
2
1
0
0
0
0
0
3
11
20
66
95
95
95
95
80
63
38
30
57
75
90
85

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0.2
1.3
1.4
1.3
1.5
0.4
0
0
0
0.2
0.4
0.6
0.5

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

65
66
77
84
85
83
85
86
88
86
86
86
89
94
96
98
96
96
95
93
84
79
76
76

Pressure (mb)

1005
1005
1005
1006
1006
1006
1006
1006
1006
1006
1005
1005
1005
1005
1005
1005
1005
1005
1004
1004
1003
1003
1003
1003

Ozone (du)

440
442
443
442
441
440
439
439
439
441
445
448
447
443
438
434
434
433
432
429
427
424
422
422

Saturday 27

Waning Gibbous 83%

01:01

07:28

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: 05:32, Set: 20:16, Transit: 12:55. Moon - Rise: 01:01, Set: 07:28. Civil Dark: 20:54 - 04:54. Nautical Dark: 21:43 - 04:05. Astro Dark: 22:42 - 03:05

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
92
85
42
88
93
99
84
100
100
100
99
100
86

Low Clouds (% Sky Obscured)

86
80
74
68
63
69
72
77
81
85
81
56
41
31
65
78
93
87
98
100
96
86
88
79

Medium Clouds (% Sky Obscured)

98
100
75
67
84
67
99
100
100
100
100
89
29
18
29
37
47
48
49
49
56
63
53
55

High Clouds (% Sky Obscured)

95
100
65
93
100
100
100
100
100
100
100
85
77
15
41
37
72
10
14
26
52
31
45
6

ISS Passover

Visibility (miles)

9
6
9
9
9
9
9
2
2
3
9
9
9
9
9
9
9
9
9
9
9
9
6
6

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

Precipitation Probability (%)

84
77
67
55
35
49
71
74
73
58
36
32
26
14
32
47
52
61
66
74
67
60
66
78

Precipitation Amount (mm)

0.5
0.4
0.3
0
0
0
0.5
0.6
0.5
0.2
0
0
0
0
0
0
0.2
0.3
0.3
0.5
0.3
0.3
0.3
0.3

Wind Speed/Direction (mph)

11
9
10
11
10
10
9
9
9
10
11
10
9
8
10
11
13
15
17
18
18
18
19
17

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

8
8
7
6
6
7
7
8
7
7
6
7
7
7
7
6
7
6
6
6
6
6
6
7

Dew Point (°C)

8
9
9
9
9
9
9
10
10
10
10
10
9
10
9
9
9
9
8
9
9
9
8
9

Relative Humidity (%)

79
86
88
88
88
91
91
98
96
96
93
95
96
98
95
93
91
88
83
86
86
86
79
87

Pressure (mb)

1002
1002
1002
1002
1002
1001
1001
1001
1000
1000
1001
1001
1001
1001
1002
1002
1002
1002
1003
1003
1003
1003
1004
1004

Ozone (du)

420
417
414
409
412
412
414
415
414
412
417
422
427
431
432
432
430
433
438
440
440
440
440
440

Sunday 28

Waning Gibbous 74%

02:00

08:30

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

Sun - Rise: 05:30, Set: 20:18, Transit: 12:55. Moon - Rise: 02:00, Set: 08:30. Civil Dark: 20:56 - 04:52. Nautical Dark: 21:45 - 04:03. Astro Dark: 22:45 - 03:01

Total Clouds (% Sky Obscured)

100
100
98
97
89
96
93
64
49
33
24
36
44
35
40
39
44
47
54
59
68
71
72
59

Low Clouds (% Sky Obscured)

96
100
75
71
77
83
60
49
32
16
3
19
33
35
15
15
15
18
23
37
46
48
52
44

Medium Clouds (% Sky Obscured)

94
100
95
62
74
88
85
51
34
21
14
9
5
0
0
0
0
0
1
1
1
2
2
1

High Clouds (% Sky Obscured)

8
35
35
35
7
1
9
5
0
0
0
0
0
0
1
3
4
3
3
3
15
27
38
33

ISS Passover

Visibility (miles)

6
7
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

Light Rain
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 (%)

78
50
27
21
20
21
13
4
4
3
1
4
5
0
2
1
0
12
15
14
14
14
16
16

Precipitation Amount (mm)

0.4
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)

19
18
11
11
13
13
12
10
10
9
8
7
6
6
6
4
5
6
7
8
9
9
9
10

Chance of Frost

Temperature (°C)

12
11
11
10
10
10
9
9
8
8
7
7
7
7
7
8
9
11
13
14
15
15
15
16

Feels Like (°C)

7
5
7
6
6
5
5
5
5
6
6
5
4
5
5
5
6
8
8
8
9
13
12
13

Dew Point (°C)

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

Relative Humidity (%)

84
91
91
91
93
93
91
96
96
95
96
96
96
96
96
91
87
84
75
67
60
63
67
70

Pressure (mb)

1004
1004
1005
1006
1007
1008
1009
1009
1010
1011
1012
1012
1013
1013
1014
1017
1017
1018
1018
1018
1019
1019
1019
1019

Ozone (du)

439
437
437
432
432
435
433
435
435
429
423
421
419
418
418
419
421
423
424
426
428
429
430
432

Monday 29

Waning Gibbous 64%

02:44

09:46

17 Bad
18 OK
19 OK
20 OK
21 Good
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: 05:28, Set: 20:19, Transit: 12:55. Moon - Rise: 02:44, Set: 09:46. Civil Dark: 20:58 - 04:50. Nautical Dark: 21:47 - 04:00. Astro Dark: 22:49 - 02:58

Total Clouds (% Sky Obscured)

45
32
27
20
11
19
33
59
69
79
85
90
90
90
90
94
100
100
100
100
95
91
86
92

Low Clouds (% Sky Obscured)

38
31
22
12
0
0
0
0
3
8
13
18
18
22
30
32
34
49
68
87
85
82
80
72

Medium Clouds (% Sky Obscured)

1
1
1
0
0
0
0
0
0
0
0
18
34
51
64
80
100
98
96
95
78
63
47
38

High Clouds (% Sky Obscured)

26
17
18
17
16
35
54
83
94
94
90
93
86
75
79
86
96
73
50
29
41
51
57
69

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

Precipitation Probability (%)

16
12
10
5
0
0
0
0
0
0
0
0
0
1
12
24
38
51
58
61
56
50
44
45

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.2
0.2
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

12
11
11
11
10
9
8
8
6
3
3
3
4
4
4
7
7
7
8
9
10
11
10
10

Dew Point (°C)

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

Relative Humidity (%)

73
74
75
80
87
91
91
91
90
88
87
87
88
88
90
87
83
79
79
79
78
83
89
96

Pressure (mb)

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

Ozone (du)

433
434
436
434
432
431
430
429
428
428
428
427
426
425
424
423
422
421
421
421
421
420
418
416

Tuesday 30

Waning Gibbous 53%

03:14

11:12

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: 05:27, Set: 20:21, Transit: 12:55. Moon - Rise: 03:14, Set: 11:12. Civil Dark: 20:59 - 04:48. Nautical Dark: 21:50 - 03:57. Astro Dark: 22:52 - 02:54

Total Clouds (% Sky Obscured)

97
100
100
100
100
100
100
100
88
70
45
50
60
55
69
84
97
98
99
100

Low Clouds (% Sky Obscured)

65
58
60
57
53
56
53
47
37
32
26
22
15
9
10
13
15
13
12
11

Medium Clouds (% Sky Obscured)

25
15
26
38
50
34
17
2
16
31
45
51
58
60
57
58
55
62
66
65

High Clouds (% Sky Obscured)

83
100
100
100
100
100
100
100
90
83
75
75
75
65
71
82
92
94
96
98

ISS Passover

Visibility (miles)

9
9
8
6
3
1
4
7
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

Precipitation Type

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

Precipitation Probability (%)

40
31
41
46
49
39
29
19
14
8
0
0
0
0
0
0
0
1
2
2

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

11
9
9
8
7
7
7
7
7
6
5
5
5
6
7
9
11
13
13
13

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

96
98
98
98
98
98
96
96
95
96
96
96
96
95
96
88
83
75
73
71

Pressure (mb)

1016
1016
1015
1015
1016
1016
1016
1016
1017
1017
1017
1017
1017
1017
1018
1018
1018
1018
1018
1017

Ozone (du)

419
422
424
426
428
430
430
430
430
430
429
428
429
430
431
429
426
423
423
422

Forecast for Chelmsford, Essex, United Kingdom (51.72,0.47)

Generated: 24/04/24 17:56:27. Forecast: 24/04/24 to 30/04/24. Timezone: UTC+1.00