Clear Outside v1.0 - International Weather Forecasts For Astronomers

Saturday 27

Waning Gibbous 83%

01:00

07:30

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
13 Bad

Sun - Rise: 05:33, Set: 20:16, Transit: 12:55. Moon - Rise: 01:00, Set: 07:30. Civil Dark: 20:54 - 04:55. Nautical Dark: 21:42 - 04:06. Astro Dark: 22:41 - 03:06

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
92
96
100
100
98
96
63
86
100
100
99

Low Clouds (% Sky Obscured)

86
31
69
100
100
99
100
100
93
99
92
82
75
74
67
64
71
62
72
62
81
100
100
93

Medium Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
49
98
100
96
81
91
58
91
47
45
23
0
0
17
52

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
65
65
25
42
0
40
0
3
2
3
2

ISS Passover

Visibility (miles)

9
9
9
9
9
5
2
2
1
0
8
4
8
3
9
9
7
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
Moderate Rain
Light Rain
Light Rain
Light Rain
None
Very Light Rain
Light Rain
None
None
None
None
None
Light Rain
Very Light Rain
None
None
None

Precipitation Probability (%)

1
5
34
89
95
95
95
95
95
95
77
46
59
80
20
33
26
27
42
72
57
31
23
45

Precipitation Amount (mm)

0
0
0
0.7
1.6
1.7
2.2
2.6
2.4
0.6
0.4
0
0.2
0.8
0
0
0
0
0
0.4
0.2
0
0
0

Wind Speed/Direction (mph)

7
8
9
12
11
11
13
13
14
12
9
6
6
8
8
10
9
10
11
14
16
19
19
16

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

9
9
9
10
10
9
10
10
10
10
10
11
10
10
10
9
9
10
9
9
9
10
9
9

Relative Humidity (%)

90
87
87
90
91
91
96
98
98
100
98
100
96
96
96
91
93
93
88
86
84
88
87
87

Pressure (mb)

1003
1003
1002
1002
1002
1001
1001
1001
1000
999
999
998
998
998
998
998
998
999
999
1000
1000
1000
1001
1002

Ozone (du)

444
443
441
437
434
432
432
433
435
437
440
444
445
449
452
450
455
454
448
446
444
441
437
439

Sunday 28

Waning Gibbous 74%

01:59

08:31

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

Sun - Rise: 05:31, Set: 20:18, Transit: 12:55. Moon - Rise: 01:59, Set: 08:31. Civil Dark: 20:55 - 04:53. Nautical Dark: 21:44 - 04:04. Astro Dark: 22:44 - 03:03

Total Clouds (% Sky Obscured)

100
94
92
94
79
53
23
12
11
6
0
0
5
23
27
19
18
8
27
56
68
67
48
52

Low Clouds (% Sky Obscured)

97
87
82
85
10
26
1
0
0
0
0
0
7
32
36
25
23
10
33
37
56
52
34
23

Medium Clouds (% Sky Obscured)

50
27
18
9
38
38
16
7
6
2
0
0
0
0
0
0
0
0
0
0
42
47
6
7

High Clouds (% Sky Obscured)

14
0
0
0
0
2
2
2
6
2
0
0
0
0
0
0
0
0
0
56
75
51
4
75

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

Light Rain
Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

86
95
59
32
7
0
0
0
0
0
0
0
0
0
0
0
0
0
0
9
16
15
18
11

Precipitation Amount (mm)

0.6
0.9
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)

15
21
18
15
13
10
8
8
9
8
8
7
6
6
7
7
6
7
8
11
12
13
13
14

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

84
87
87
87
88
82
84
88
91
91
90
91
91
93
94
94
94
93
87
76
72
72
69
69

Pressure (mb)

1003
1005
1007
1009
1010
1010
1011
1012
1013
1013
1014
1014
1014
1014
1015
1015
1015
1015
1016
1016
1016
1016
1016
1016

Ozone (du)

443
442
441
442
446
445
441
435
431
435
440
440
446
451
450
450
447
446
445
443
442
441
443
443

Monday 29

Waning Gibbous 64%

02:43

09:48

14 OK
15 OK
16 OK
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 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad

Sun - Rise: 05:29, Set: 20:19, Transit: 12:55. Moon - Rise: 02:43, Set: 09:48. Civil Dark: 20:57 - 04:51. Nautical Dark: 21:47 - 04:01. Astro Dark: 22:47 - 02:59

Total Clouds (% Sky Obscured)

31
31
24
7
2
4
3
3
2
0
0
0
0
0
0
6
72
100
100
100
99
98
96
96

Low Clouds (% Sky Obscured)

30
33
24
5
0
0
1
1
1
0
0
0
0
0
0
0
0
0
0
0
9
18
27
37

Medium Clouds (% Sky Obscured)

2
2
2
0
0
2
1
0
0
0
0
0
0
0
0
0
0
53
76
100
96
93
87
87

High Clouds (% Sky Obscured)

7
7
3
4
2
4
2
2
0
0
0
0
0
0
0
6
71
97
99
89
91
84
29
17

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 (%)

1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
5
5
3
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

64
60
60
64
69
74
79
84
85
84
85
88
91
93
93
93
95
91
86
80
74
70
68
66

Pressure (mb)

1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1014
1014
1014
1013
1013
1013
1013
1013
1013
1012
1012
1012
1011

Ozone (du)

434
429
426
424
423
423
424
426
427
429
431
431
431
430
431
429
424
423
424
422
422
421
420
420

Tuesday 30

Waning Gibbous 53%

03:13

11:13

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
13 Bad

Sun - Rise: 05:27, Set: 20:21, Transit: 12:55. Moon - Rise: 03:13, Set: 11:13. Civil Dark: 20:59 - 04:49. Nautical Dark: 21:49 - 03:59. Astro Dark: 22:51 - 02:56

Total Clouds (% Sky Obscured)

94
92
87
98
60
57
56
50
55
84
85
73
53
53
53
99
100
100
95
100
100
100
100
100

Low Clouds (% Sky Obscured)

42
50
36
26
14
17
17
19
13
9
2
2
1
1
16
31
43
35
26
18
25
31
41
43

Medium Clouds (% Sky Obscured)

85
84
53
65
60
57
55
52
55
57
55
55
50
50
33
17
2
35
76
85
92
70
100
100

High Clouds (% Sky Obscured)

36
0
49
84
45
45
45
45
45
72
69
53
39
38
34
98
100
100
95
100
92
82
71
81

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
2

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 (%)

15
16
25
26
25
15
10
0
0
0
0
8
9
5
6
4
0
0
0
0
1
2
2
9

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)

12
11
11
10
9
8
7
7
6
6
5
5
4
2
3
3
3
2
3
4
6
7
8
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

66
64
66
71
82
89
93
95
95
95
95
95
95
93
95
93
95
93
90
86
80
78
79
80

Pressure (mb)

1011
1010
1010
1010
1010
1009
1009
1010
1010
1010
1010
1009
1009
1009
1009
1009
1009
1009
1009
1009
1009
1009
1009
1009

Ozone (du)

424
427
428
430
432
432
434
433
430
428
424
419
417
414
413
413
412
413
414
413
411
409
409
409

Wednesday 1

Third Quarter 41%

03:35

12:42

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
13 Bad

Sun - Rise: 05:25, Set: 20:22, Transit: 12:55. Moon - Rise: 03:35, Set: 12:42. Civil Dark: 21:01 - 04:47. Nautical Dark: 21:51 - 03:56. Astro Dark: 22:54 - 02:52

Total Clouds (% Sky Obscured)

99
100
100
100
100
99
96
100
100
100
100
100
100
100
100
100
100
98
96
93
95
97
100
100

Low Clouds (% Sky Obscured)

44
41
48
57
61
65
68
71
63
78
80
66
53
39
36
33
30
30
20
15
22
33
48
53

Medium Clouds (% Sky Obscured)

85
100
100
100
99
88
85
87
98
73
84
89
94
99
99
100
100
97
95
93
93
94
94
93

High Clouds (% Sky Obscured)

84
98
97
72
98
93
80
89
100
100
100
100
100
100
100
100
100
97
91
85
86
92
100
89

ISS Passover

Visibility (miles)

1
1
2
9
9
9
9
9
9
1
0
0
0
0
0
1
1
2
3
4
5
4
3
2

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

Precipitation Probability (%)

13
9
25
34
43
47
49
48
44
35
27
50
45
42
59
72
82
74
68
64
61
55
46
40

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

80
79
79
80
87
93
96
96
98
100
100
96
98
98
98
98
100
98
98
98
98
96
98
96

Pressure (mb)

1009
1008
1008
1008
1008
1008
1009
1009
1009
1009
1009
1009
1008
1008
1008
1008
1008
1008
1008
1008
1008
1008
1008
1008

Ozone (du)

407
404
404
403
402
401
399
396
394
392
390
388
387
385
384
382
380
379
377
374
372
372
373
373

Thursday 2

Waning Crescent 30%

03:52

No Set

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
13 Bad

Sun - Rise: 05:24, Set: 20:24, Transit: 12:55. Moon - Rise: 03:52, Set: No Set. Civil Dark: 21:03 - 04:45. Nautical Dark: 21:53 - 03:54. Astro Dark: 22:58 - 02:48

Total Clouds (% Sky Obscured)

100
100
100
100
100
96
93
94
92
91
89
96
98
100
99
97
96
95
97
100
100
100
100
100

Low Clouds (% Sky Obscured)

55
60
60
61
58
63
65
74
66
56
46
39
31
25
31
44
58
56
54
52
49
47
45
38

Medium Clouds (% Sky Obscured)

93
93
92
85
71
63
58
59
60
62
62
58
54
43
30
17
6
28
50
73
58
42
25
37

High Clouds (% Sky Obscured)

78
65
61
53
34
46
63
79
75
74
77
88
94
100
97
94
92
94
95
97
98
99
100
100

ISS Passover

Visibility (miles)

1
1
1
4
7
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
7
4
1

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 (%)

34
29
26
21
9
13
15
15
15
13
10
10
7
0
16
22
25
25
23
21
19
15
8
9

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

96
96
96
95
93
92
93
95
96
96
96
96
96
96
98
95
93
90
90
89
87
86
83
83

Pressure (mb)

1008
1008
1008
1009
1009
1010
1010
1011
1012
1012
1012
1012
1012
1013
1013
1013
1013
1014
1014
1014
1014
1014
1014
1014

Ozone (du)

374
374
375
374
373
371
371
370
369
370
371
372
371
371
371
370
369
369
369
368
368
368
368
368

Friday 3

Waning Crescent 19%

04:05

14:11

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: 05:22, Set: 20:26, Transit: 12:55. Moon - Rise: 04:05, Set: 14:11. Civil Dark: 21:05 - 04:43. Nautical Dark: 21:56 - 03:51. Astro Dark: 23:01 - 02:44

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
98
96
93
95
96
98
98
98
99

Low Clouds (% Sky Obscured)

34
31
27
24
20
29
39
52
56
57
59
56
53
50
55
62
65

Medium Clouds (% Sky Obscured)

49
60
61
58
56
55
55
55
45
41
33
40
47
51
57
63
68

High Clouds (% Sky Obscured)

100
100
100
100
100
82
67
65
65
70
70
70
70
60
50
40
45

ISS Passover

Visibility (miles)

1
1
1
4
7
9
9
9
9
9
9
9
9
9
9
7
4

Fog (%)

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

Precipitation Probability (%)

8
4
7
8
6
10
9
5
14
15
9
19
23
26
26
26
25

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

85
86
86
86
85
85
84
86
86
86
87
87
90
93
96
98
96

Pressure (mb)

1014
1014
1014
1014
1014
1014
1014
1015
1015
1015
1015
1014
1014
1014
1014
1014
1014

Ozone (du)

367
366
365
365
364
364
364
363
363
362
362
362
361
361
360
360
360

Forecast for Laindon, Essex, United Kingdom (51.58,0.42)

Generated: 27/04/24 14:06:59. Forecast: 27/04/24 to 03/05/24. Timezone: UTC+1.00