Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 30

Waning Gibbous 61%

03:16

09:54

07 Good
08 Good
09 Good
10 OK
11 Bad
12 OK
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: 05:32, Set: 20:24, Transit: 12:59. Moon - Rise: 03:16, Set: 09:54. Civil Dark: 21:02 - 04:54. Nautical Dark: 21:51 - 04:05. Astro Dark: 22:51 - 03:03

Total Clouds (% Sky Obscured)

0
0
13
23
45
24
28
44
80
91
84
57
31
56
77
44
68
65
95
98
93
100
100
100

Low Clouds (% Sky Obscured)

0
14
21
20
20
17
23
37
37
44
26
25
13
18
54
43
39
37
43
32
26
37
60
55

Medium Clouds (% Sky Obscured)

0
0
0
0
26
2
2
0
37
2
0
0
0
0
0
0
35
30
38
40
38
35
48
96

High Clouds (% Sky Obscured)

0
0
0
0
2
5
1
7
41
79
74
37
23
42
21
0
39
36
86
94
74
99
100
87

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
8
9
8
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
34
50
100

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
17
21
21
19
22
9
20
18
25
4
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)

4
7
9
14
15
15
16
15
15
15
13
12
11
8
7
6
5
5
4
4
4
3
2
2

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

6
8
9
11
12
12
12
13
13
12
12
13
12
12
11
10
10
9
9
8
8
8
8
8

Dew Point (°C)

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

Relative Humidity (%)

93
85
73
71
73
70
70
70
73
74
75
82
87
95
95
98
95
95
91
93
91
93
93
93

Pressure (mb)

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

Ozone (du)

441
440
441
443
444
448
451
453
452
442
433
426
427
433
437
440
440
438
434
433
436
436
432
427

Wednesday 1

Third Quarter 53%

03:38

11:19

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
05 Bad
06 Bad

Sun - Rise: 05:30, Set: 20:25, Transit: 12:59. Moon - Rise: 03:38, Set: 11:19. Civil Dark: 21:03 - 04:52. Nautical Dark: 21:53 - 04:02. Astro Dark: 22:54 - 03:00

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
99
99
100
100
100
100
100
100
100
100
100
100
100
99
99
99
100
100

Low Clouds (% Sky Obscured)

58
54
62
40
64
57
62
79
64
62
100
92
92
85
53
60
85
88
96
94
99
97
100
100

Medium Clouds (% Sky Obscured)

75
98
99
71
78
63
67
95
100
100
100
100
100
100
83
100
100
86
97
81
92
80
100
50

High Clouds (% Sky Obscured)

66
60
100
100
87
100
83
76
93
100
67
100
100
100
100
100
68
69
73
80
75
87
100
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
5
6
7
8
9
9
9
9
9
9
9
0
0
0
0
0

Fog (%)

100
100
54
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
4

Precipitation Type

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

Precipitation Probability (%)

0
5
11
23
22
18
29
39
51
57
55
84
71
30
11
2
0
16
40
47
34
47
32
76

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0.2
0.2
0
0.9
0.6
0
0
0
0
0
0
0
0
0
0
0.9

Wind Speed/Direction (mph)

1
1
2
3
5
5
5
6
7
7
6
6
6
5
7
7
8
10
11
9
10
10
11
10

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

91
87
83
77
74
68
65
62
72
77
83
87
90
93
96
96
96
95
93
98
98
100
100
98

Pressure (mb)

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

Ozone (du)

424
419
417
417
418
418
418
417
415
412
408
405
403
401
402
401
398
396
391
389
388
386
385
385

Thursday 2

Waning Crescent 41%

03:55

12:48

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
05 Bad
06 Bad

Sun - Rise: 05:29, Set: 20:27, Transit: 12:59. Moon - Rise: 03:55, Set: 12:48. Civil Dark: 21:05 - 04:50. Nautical Dark: 21:55 - 04:00. Astro Dark: 22:58 - 02:56

Total Clouds (% Sky Obscured)

100
100
100
100
100
96
73
96
92
87
100
100
100
85
100
80
74
71
81
90
99
99
99
99

Low Clouds (% Sky Obscured)

98
100
100
100
90
90
62
91
86
83
79
85
82
86
82
76
65
73
81
89
97
96
95
94

Medium Clouds (% Sky Obscured)

88
67
40
49
59
60
57
49
54
32
26
16
39
40
40
30
25
25
45
72
93
95
84
67

High Clouds (% Sky Obscured)

100
66
97
97
92
64
50
53
54
15
53
84
74
47
100
58
55
30
29
35
22
44
17
56

ISS Passover

Visibility (miles)

0
0
0
0
5
9
9
9
9
9
9
9
9
9
9
9
2
9
9
9
8
8
9
9

Fog (%)

4
1
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
Very Light Rain
Very Light Rain
None
None
Light Rain
Light Rain
None
None
None
None
Very Light Rain
Very Light Rain
Very Light Rain

Precipitation Probability (%)

95
56
42
34
12
15
13
19
24
23
34
47
54
32
44
95
92
42
38
51
60
65
73
78

Precipitation Amount (mm)

1.9
0
0
0
0
0
0
0
0
0
0
0.3
0.2
0
0
1
0.8
0
0
0
0
0.2
0.3
0.3

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

8
8
9
10
11
14
17
18
20
20
19
18
16
15
14
12
11
8
8
7
7
7
7
7

Dew Point (°C)

10
10
10
11
12
14
16
17
18
19
20
19
18
16
15
14
13
12
11
11
10
10
10
9

Relative Humidity (%)

98
98
96
96
95
95
93
92
91
93
95
96
96
96
96
95
96
96
96
96
95
95
95
95

Pressure (mb)

1002
1001
1001
1001
1001
1001
1001
1000
1000
1001
1001
1001
1002
1002
1003
1004
1004
1004
1005
1005
1005
1006
1006
1007

Ozone (du)

385
385
383
382
383
384
383
382
381
379
378
377
377
378
377
377
375
378
378
379
380
380
380
380

Friday 3

Waning Crescent 30%

04:09

14:16

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 OK
22 OK
23 OK
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad

Sun - Rise: 05:27, Set: 20:29, Transit: 12:59. Moon - Rise: 04:09, Set: 14:16. Civil Dark: 21:07 - 04:48. Nautical Dark: 21:57 - 03:57. Astro Dark: 23:01 - 02:52

Total Clouds (% Sky Obscured)

99
100
100
100
100
84
86
62
82
80
78
62
59
71
35
36
37
42
54
97
98
98
99
100

Low Clouds (% Sky Obscured)

95
70
74
83
74
73
74
68
73
72
71
53
52
52
51
49
46
43
50
54
57
58
60
56

Medium Clouds (% Sky Obscured)

70
62
60
60
55
54
57
55
57
57
52
47
44
40
35
33
26
24
18
13
26
55
56
65

High Clouds (% Sky Obscured)

68
70
69
63
57
31
39
24
51
45
42
36
28
39
2
1
1
3
5
59
57
52
52
56

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

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

Precipitation Probability (%)

69
63
63
64
52
24
26
28
21
14
12
20
12
9
1
1
1
0
1
1
0
0
1
0

Precipitation Amount (mm)

0.3
0.2
0.2
0.2
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
8
9
10
11
11
10
10
9
10
10
10
9
8
7
6
6
5
5
5
5
5
5
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

93
91
84
77
70
65
61
58
58
59
63
72
79
87
90
91
91
91
90
88
87
85
84
84

Pressure (mb)

1007
1008
1008
1009
1009
1009
1009
1010
1010
1010
1010
1011
1011
1011
1012
1012
1012
1012
1012
1012
1012
1012
1012
1013

Ozone (du)

380
380
379
379
379
378
379
380
380
381
382
382
384
387
390
392
394
397
398
398
399
400
402
405

Saturday 4

Waning Crescent 19%

04:22

15:43

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
05 Bad
06 Bad

Sun - Rise: 05:25, Set: 20:30, Transit: 12:58. Moon - Rise: 04:22, Set: 15:43. Civil Dark: 21:09 - 04:46. Nautical Dark: 22:00 - 03:55. Astro Dark: 23:05 - 02:49

Total Clouds (% Sky Obscured)

99
99
99
99
99
99
99
99
99
99
99
100
100
100
100
100
100
100
99
99
98
94
91
87

Low Clouds (% Sky Obscured)

60
69
66
69
89
98
98
98
98
98
98
95
30
42
61
75
88
100
98
96
94
92
89
87

Medium Clouds (% Sky Obscured)

69
73
77
79
77
77
79
81
84
88
63
96
94
97
100
98
97
94
81
67
55
41
31
25

High Clouds (% Sky Obscured)

55
58
55
57
57
48
2
1
0
0
0
48
76
71
62
68
84
100
83
66
45
45
45
41

ISS Passover

Visibility (miles)

9
9
9
9
3
2
2
3
9
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
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
None
None
None
None
None
Very Light Rain
Light Rain
Light Rain
Very Light Rain
None
None
None
None
None

Precipitation Probability (%)

1
3
13
67
95
95
95
95
88
71
56
53
53
55
53
65
73
71
59
47
35
32
27
21

Precipitation Amount (mm)

0
0
0
0.5
1.2
1.3
1.2
0.7
0.6
0.2
0
0
0
0
0
0.3
0.4
0.4
0.2
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

81
78
77
76
77
79
78
79
83
84
86
84
86
87
91
95
96
96
98
98
96
98
98
98

Pressure (mb)

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

Ozone (du)

407
408
411
416
419
422
423
423
420
420
422
423
421
421
420
420
421
422
423
419
415
411
409
408

Sunday 5

Waning Crescent 10%

04:35

17:11

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
05 Bad
06 Bad

Sun - Rise: 05:23, Set: 20:32, Transit: 12:58. Moon - Rise: 04:35, Set: 17:11. Civil Dark: 21:11 - 04:44. Nautical Dark: 22:02 - 03:52. Astro Dark: 23:08 - 02:45

Total Clouds (% Sky Obscured)

93
96
100
87
71
56
61
62
66
75
85
100
99
97
96
93
91
88
91
95
99
99
100
100

Low Clouds (% Sky Obscured)

85
83
81
73
64
52
60
64
67
63
52
44
43
42
41
40
43
51
62
71
80
80
80
81

Medium Clouds (% Sky Obscured)

40
51
59
55
51
52
56
56
60
60
65
67
74
82
93
85
77
66
61
55
51
63
75
88

High Clouds (% Sky Obscured)

62
79
94
75
48
16
17
22
28
52
75
100
78
56
33
40
45
50
58
71
80
87
95
100

ISS Passover

Visibility (miles)

9
9
9
9
8
7
5
5
5
5
6
8
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
Light 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 (%)

15
10
2
12
19
26
46
65
81
79
78
75
62
51
42
39
36
30
27
23
18
18
25
31

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

9
9
10
9
9
9
8
16
16
16
16
16
17
13
13
13
12
12
11
8
8
8
7
8

Dew Point (°C)

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

Relative Humidity (%)

96
90
87
83
76
70
65
66
67
69
74
79
86
86
87
87
88
87
87
87
87
88
88
90

Pressure (mb)

1012
1012
1012
1012
1012
1012
1012
1012
1012
1011
1011
1011
1011
1011
1011
1011
1011
1011
1010
1010
1010
1010
1010
1011

Ozone (du)

407
406
406
405
405
405
404
401
399
396
393
389
386
386
386
386
385
384
382
383
384
385
385
384

Monday 6

Waning Crescent 4%

04:51

18:40

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

Sun - Rise: 05:22, Set: 20:33, Transit: 12:58. Moon - Rise: 04:51, Set: 18:40. Civil Dark: 21:12 - 04:42. Nautical Dark: 22:04 - 03:50. Astro Dark: 23:12 - 02:41

Total Clouds (% Sky Obscured)

100
100
100
99
98
96
97
99
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

81
80
79
83
87
91
87
81
76
80
79
80
78
79
77
79
79
82

Medium Clouds (% Sky Obscured)

88
86
83
84
84
84
81
76
73
82
91
100
100
100
100
96
93
89

High Clouds (% Sky Obscured)

92
83
80
77
74
66
77
89
100
100
100
100
100
100
100
100
100
100

ISS Passover

Visibility (miles)

9
9
9
9
7
4
2
3
4
4
3
2
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

Precipitation Type

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

Precipitation Probability (%)

41
46
48
62
65
59
68
71
68
72
77
80
92
95
95
94
95
95

Precipitation Amount (mm)

0
0
0
0
0.2
0
0.3
0.4
0.3
0.3
0.4
0.4
0.6
0.8
0.8
0.6
0.7
1

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

11
11
11
12
12
12
13
13
13
14
14
14
13
13
13
12
12
12

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

90
93
95
96
96
96
98
96
96
96
98
96
98
98
98
100
98
98

Pressure (mb)

1011
1011
1011
1011
1011
1011
1011
1011
1011
1010
1010
1010
1010
1010
1010
1010
1010
1010

Ozone (du)

384
385
385
386
386
385
384
384
383
382
383
384
385
386
387
388
392
395

Forecast for Guildford, Surrey, United Kingdom (51.24,-0.57)

Generated: 30/04/24 07:12:23. Forecast: 30/04/24 to 06/05/24. Timezone: UTC+1.00