Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 26

Waning Gibbous 91%

23:49

06:50

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
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad

Sun - Rise: 05:38, Set: 20:16, Transit: 12:58. Moon - Rise: 23:49, Set: 06:50. Civil Dark: 20:53 - 05:01. Nautical Dark: 21:41 - 04:13. Astro Dark: 22:38 - 03:15

Total Clouds (% Sky Obscured)

94
95
94
89
100
100
100
100
100
100
86
99
100
100
100
100
100
100
100
100
100
100
99
95

Low Clouds (% Sky Obscured)

22
12
51
90
99
100
100
83
81
68
73
43
71
91
97
100
95
93
91
94
99
93
98
92

Medium Clouds (% Sky Obscured)

93
84
36
37
76
90
92
99
47
48
48
46
100
100
100
100
100
100
100
100
99
100
41
63

High Clouds (% Sky Obscured)

61
58
17
3
44
55
61
77
71
82
48
98
100
100
100
100
100
100
94
55
100
100
51
56

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
5
4
4
7
9
3
4

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

Precipitation Probability (%)

5
4
4
5
5
5
5
1
3
5
15
29
31
45
79
95
95
95
95
85
58
39
14
12

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.4
0.7
0.7
0.8
0.9
0.6
0.2
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

3
2
2
2
3
3
4
5
6
6
6
6
6
6
5
5
5
6
6
5
5
5
6
7

Relative Humidity (%)

69
60
56
55
55
56
59
63
70
74
77
85
91
91
87
90
90
94
96
96
96
96
98
96

Pressure (mb)

1004
1004
1004
1004
1004
1004
1003
1003
1003
1003
1003
1004
1004
1004
1003
1003
1003
1003
1002
1002
1002
1002
1002
1003

Ozone (du)

433
435
435
437
442
444
446
450
451
451
453
452
448
446
442
442
441
442
444
443
442
443
441
441

Saturday 27

Waning Gibbous 83%

01:01

07:34

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
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad

Sun - Rise: 05:36, Set: 20:18, Transit: 12:58. Moon - Rise: 01:01, Set: 07:34. Civil Dark: 20:55 - 04:59. Nautical Dark: 21:43 - 04:10. Astro Dark: 22:41 - 03:11

Total Clouds (% Sky Obscured)

100
100
94
100
100
100
100
100
100
99
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

100
100
74
74
88
76
67
84
97
94
78
72
67
69
70
77
82
87
88
90
100
100
100
86

Medium Clouds (% Sky Obscured)

68
61
89
91
93
87
100
100
100
87
78
87
99
100
100
100
100
68
50
50
55
56
99
99

High Clouds (% Sky Obscured)

52
50
67
100
100
100
100
92
76
82
100
100
100
100
100
100
100
35
40
30
30
100
96
29

ISS Passover

Visibility (miles)

9
5
5
9
9
9
9
9
9
9
9
5
7
7
1
0
0
0
1
4
9
9
9
5

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
20
0
0
0

Precipitation Type

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

Precipitation Probability (%)

10
6
6
6
15
37
39
27
14
18
31
48
43
55
44
95
95
95
95
95
95
95
95
95

Precipitation Amount (mm)

0
0
0
0
0
0.3
0.3
0
0
0
0
0
0
0.3
0
0.9
1.2
0.5
0.6
0.9
1.5
2.2
2.2
1.2

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

96
95
93
93
87
87
90
90
90
91
95
98
98
100
100
98
98
100
98
98
96
94
98
98

Pressure (mb)

1003
1003
1003
1003
1003
1003
1003
1003
1003
1003
1003
1003
1003
1003
1002
1002
1002
1002
1002
1001
1001
1002
1003
1003

Ozone (du)

443
444
442
442
439
438
436
436
433
429
428
425
428
429
429
432
432
441
443
447
451
455
458
462

Sunday 28

Waning Gibbous 74%

02:00

08:36

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

Sun - Rise: 05:34, Set: 20:20, Transit: 12:58. Moon - Rise: 02:00, Set: 08:36. Civil Dark: 20:57 - 04:57. Nautical Dark: 21:46 - 04:08. Astro Dark: 22:45 - 03:08

Total Clouds (% Sky Obscured)

100
100
100
82
91
74
91
68
30
35
30
30
33
30
25
11
3
41
62
50
44
54
58
74

Low Clouds (% Sky Obscured)

86
92
100
82
88
70
75
56
35
35
35
35
30
35
30
20
3
52
65
51
51
60
49
62

Medium Clouds (% Sky Obscured)

41
81
44
6
7
20
52
30
2
2
33
2
27
35
34
2
2
39
18
7
1
1
1
1

High Clouds (% Sky Obscured)

82
100
70
3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
8
0
0
6
12
16

ISS Passover

Visibility (miles)

6
5
7
9
5
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 (%)

76
48
35
35
29
20
16
6
4
1
2
0
0
3
0
0
0
0
1
2
1
1
1
14

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

96
90
88
93
88
90
92
90
93
92
93
93
95
91
93
94
94
94
93
94
94
88
85
81

Pressure (mb)

1004
1005
1005
1006
1007
1007
1008
1009
1010
1011
1012
1013
1014
1014
1015
1015
1015
1015
1015
1016
1016
1016
1016
1016

Ozone (du)

460
452
442
435
433
429
427
428
428
429
431
435
438
438
439
442
446
449
450
452
455
455
449
442

Monday 29

Waning Gibbous 64%

02:44

09:52

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

Sun - Rise: 05:32, Set: 20:21, Transit: 12:58. Moon - Rise: 02:44, Set: 09:52. Civil Dark: 20:59 - 04:54. Nautical Dark: 21:48 - 04:05. Astro Dark: 22:48 - 03:04

Total Clouds (% Sky Obscured)

68
56
51
46
41
44
27
15
7
5
4
28
46
45
8
17
30
43
41
48
69
63
63
59

Low Clouds (% Sky Obscured)

57
45
42
38
34
30
20
11
0
0
0
2
34
20
2
7
14
20
12
6
1
8
16
23

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
2
2
0
0
2
2
0
0
10
20
27
33
39
45
45
45
45

High Clouds (% Sky Obscured)

10
5
0
1
1
31
11
6
5
5
3
24
25
39
6
9
14
15
12
9
24
23
38
53

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 (%)

13
5
3
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

73
63
57
54
56
57
59
63
68
76
86
85
81
73
76
82
91
95
95
95
95
91
83
76

Pressure (mb)

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

Ozone (du)

439
436
432
428
428
429
430
432
431
428
425
423
423
422
423
426
427
427
426
424
423
423
426
428

Tuesday 30

Waning Gibbous 53%

03:15

No Set

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
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad

Sun - Rise: 05:31, Set: 20:23, Transit: 12:58. Moon - Rise: 03:15, Set: No Set. Civil Dark: 21:01 - 04:52. Nautical Dark: 21:50 - 04:03. Astro Dark: 22:51 - 03:01

Total Clouds (% Sky Obscured)

97
45
74
97
98
36
33
42
37
48
81
60
74
79
87
92
93
91
94
97
100
100
100
100

Low Clouds (% Sky Obscured)

26
30
36
35
34
32
28
23
17
15
35
8
8
13
10
21
33
45
49
51
53
63
70
76

Medium Clouds (% Sky Obscured)

42
34
26
35
45
47
30
20
5
15
21
27
43
54
65
73
77
76
80
75
76
81
91
100

High Clouds (% Sky Obscured)

84
30
40
52
49
0
7
16
22
35
56
43
31
16
7
23
34
49
59
64
69
67
70
74

ISS Passover

Visibility (miles)

9
9
9
9
9
7
7
9
4
7
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
Light Rain
Very Light Rain
Light Rain
Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

12
18
25
33
47
63
59
65
62
43
8
0
0
0
0
21
31
38
39
42
47
40
30
2

Precipitation Amount (mm)

0
0
0
0
0
0.4
0.3
0.4
0.4
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

70
66
65
64
64
67
72
73
82
89
93
95
96
98
96
98
96
96
95
96
95
96
93
92

Pressure (mb)

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

Ozone (du)

428
429
431
433
435
437
440
439
435
432
428
425
420
415
413
412
410
408
407
404
401
398
396
394

Wednesday 1

Third Quarter 41%

03:37

11:17

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
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad

Sun - Rise: 05:29, Set: 20:24, Transit: 12:57. Moon - Rise: 03:37, Set: 11:17. Civil Dark: 21:03 - 04:50. Nautical Dark: 21:52 - 04:00. Astro Dark: 22:54 - 02:57

Total Clouds (% Sky Obscured)

99
99
98
98
99
100
83
68
60
78
88
92
94
94
93
95
98
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

72
68
63
65
68
70
48
27
6
13
18
23
48
72
93
95
97
100
99
98
96
97
97
97

Medium Clouds (% Sky Obscured)

95
90
84
82
80
78
68
57
53
53
55
51
50
51
50
46
40
35
35
40
40
50
54
59

High Clouds (% Sky Obscured)

68
59
57
70
85
97
81
69
55
71
78
84
83
80
75
82
91
100
100
100
100
78
58
45

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
6
3
0
0
0
0
0
0
0
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
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
Very Light Rain
None
None
None

Precipitation Probability (%)

9
13
17
22
23
22
33
42
49
42
33
16
44
59
72
72
71
71
65
60
53
45
38
29

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

15
16
17
18
18
19
20
19
18
18
16
15
13
13
12
12
12
12
12
11
11
11
12
12

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

90
86
82
77
75
71
68
75
82
92
93
95
96
98
98
98
100
98
98
98
98
98
96
96

Pressure (mb)

1012
1012
1012
1012
1012
1011
1011
1011
1011
1011
1011
1012
1012
1012
1012
1012
1012
1011
1011
1011
1011
1011
1011
1011

Ozone (du)

392
392
392
391
390
389
388
388
387
386
384
383
381
380
378
377
376
374
372
370
368
366
365
364

Thursday 2

Waning Crescent 30%

03:54

12:46

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
05 Bad
06 Bad

Sun - Rise: 05:27, Set: 20:26, Transit: 12:57. Moon - Rise: 03:54, Set: 12:46. Civil Dark: 21:04 - 04:48. Nautical Dark: 21:55 - 03:58. Astro Dark: 22:58 - 02:53

Total Clouds (% Sky Obscured)

98
95
90
81
69
60
57
54
56
74
87
98
99
99
100
100
100
100
96
94
92

Low Clouds (% Sky Obscured)

97
96
95
73
54
40
36
35
30
29
33
40
56
70
84
86
85
84
76
68
62

Medium Clouds (% Sky Obscured)

59
60
60
52
49
41
34
25
16
19
25
35
30
23
18
30
42
53
36
19
3

High Clouds (% Sky Obscured)

53
49
37
44
47
55
55
60
60
69
73
76
65
50
42
46
41
44
45
37
27

ISS Passover

Visibility (miles)

1
3
6
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

Precipitation Type

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

Precipitation Probability (%)

26
19
3
4
3
0
0
0
0
1
1
0
1
2
1
4
4
1
4
5
5

Precipitation Amount (mm)

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)

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

Chance of Frost

Temperature (°C)

13
14
16
17
18
19
20
19
18
18
17
15
14
13
13
12
12
12
12
12
12

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

96
89
82
76
74
72
71
75
78
82
82
82
83
84
86
87
87
90
90
90
88

Pressure (mb)

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

Ozone (du)

362
362
362
362
362
362
361
361
362
362
362
362
362
362
362
361
361
360
359
359
360

Forecast for Ewell, Surrey, United Kingdom (51.35,-0.25)

Generated: 26/04/24 10:46:47. Forecast: 26/04/24 to 02/05/24. Timezone: UTC+1.00