Clear Outside v1.0 - International Weather Forecasts For Astronomers

Wednesday 13

Waning Crescent 9%

03:54

No Set

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
17 Bad

Sun - Rise: 05:20, Set: 21:02, Transit: 13:12. Moon - Rise: 03:54, Set: No Set. Civil Dark: 21:45 - 04:38. Nautical Dark: 22:43 - 03:39. Astro Dark: 00:17 - 02:00

Total Clouds (% Sky Obscured)

66
73
53
44
45
57
76
83
90
90
88
87
88
64
74
96
95
94
96
95
82
83
52
40

Low Clouds (% Sky Obscured)

56
61
46
44
45
57
76
65
73
71
61
56
64
61
48
71
85
81
70
73
53
49
45
35

Medium Clouds (% Sky Obscured)

66
23
18
25
22
24
21
19
23
14
15
13
16
15
18
31
62
86
92
73
62
71
32
14

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
3
0
0
0

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

67
43
10
43
41
49
44
40
41
38
38
46
41
55
57
61
73
79
71
73
72
62
50
32

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

18
17
16
15
16
17
17
19
19
18
18
17
17
16
16
16
17
18
18
19
19
18
17
15

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

5
4
4
4
3
3
3
2
2
1
1
2
2
3
3
3
3
3
4
3
4
4
5
7

Dew Point (°C)

7
6
5
4
4
5
5
5
5
4
4
4
5
5
5
5
5
5
5
6
6
5
6
6

Relative Humidity (%)

76
78
78
77
78
79
82
82
81
77
78
74
79
81
79
77
77
74
74
74
73
71
73
69

Pressure (mb)

1005
1005
1005
1005
1005
1005
1005
1005
1005
1005
1005
1005
1005
1005
1005
1005
1005
1005
1004
1004
1004
1004
1004
1004

Ozone (du)

428
428
428
427
425
422
421
423
423
421
419
418
419
421
424
423
425
428
430
432
434
434
435
433

Thursday 14

Waning Crescent 3%

04:09

18:19

18 OK
19 OK
20 Good
21 Good
22 OK
23 OK
00 OK
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 OK
16 Good
17 OK

Sun - Rise: 05:19, Set: 21:04, Transit: 13:12. Moon - Rise: 04:09, Set: 18:19. Civil Dark: 21:47 - 04:36. Nautical Dark: 22:46 - 03:36. Astro Dark: 00:24 - 01:52

Total Clouds (% Sky Obscured)

13
16
1
5
18
25
34
48
45
38
40
35
37
42
47
38
40
65
47
44
49
12
5
38

Low Clouds (% Sky Obscured)

11
16
0
5
18
25
34
47
38
38
40
35
37
42
47
38
40
52
47
43
45
12
4
22

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
2
17
25
2
0
0
0
0
0
0
0
27
0
0
7
0
0
27

High Clouds (% Sky Obscured)

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

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
10
13
1
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 (%)

19
5
5
5
6
9
15
29
31
21
8
16
9
23
27
31
25
19
13
4
4
4
1
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)

14
14
13
11
9
7
6
6
7
9
10
9
9
10
11
12
12
14
15
17
17
18
17
16

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

66
69
72
73
75
79
79
81
83
86
88
90
91
90
84
73
66
65
62
59
60
59
58
59

Pressure (mb)

1004
1004
1005
1006
1006
1007
1007
1007
1007
1007
1008
1008
1008
1009
1009
1009
1010
1010
1010
1010
1010
1010
1010
1010

Ozone (du)

432
430
427
423
420
417
416
417
415
417
417
417
416
416
416
415
417
420
424
428
429
420
414
412

Friday 15

Waning Crescent 0%

04:28

19:53

18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 OK
02 OK
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

Sun - Rise: 05:17, Set: 21:05, Transit: 13:12. Moon - Rise: 04:28, Set: 19:53. Civil Dark: 21:48 - 04:34. Nautical Dark: 22:48 - 03:34. Astro Dark: 00:32 - 01:43

Total Clouds (% Sky Obscured)

45
50
52
60
56
51
44
34
37
66
98
98
97
88
100
100
100
100
86
85
86
99
100
100

Low Clouds (% Sky Obscured)

8
50
52
60
56
51
44
34
37
66
82
89
85
70
73
82
80
70
79
84
85
88
80
74

Medium Clouds (% Sky Obscured)

40
49
51
53
56
51
44
34
37
51
51
47
39
52
92
98
99
99
84
80
75
84
95
97

High Clouds (% Sky Obscured)

2
1
3
3
0
0
0
0
0
0
0
0
0
0
5
3
2
0
6
15
24
44
49
67

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
1
9
18
9
9
9
9
9
9
9
9
9
9
9

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
6
11
13
5
15
6
15
28
31
36
28
26
29
37
35
26
39
29
36
45
35
37

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)

16
14
11
9
8
6
4
3
3
3
3
4
4
5
6
7
9
9
10
10
10
11
11
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

62
67
68
73
75
78
78
79
81
81
81
83
85
82
78
77
76
72
67
66
67
70
73
71

Pressure (mb)

1010
1011
1011
1011
1011
1011
1011
1010
1010
1010
1010
1010
1009
1009
1009
1009
1009
1009
1009
1008
1008
1008
1008
1008

Ozone (du)

408
404
402
401
400
400
400
400
400
398
397
397
397
395
394
393
393
394
395
397
398
398
396
397

Saturday 16

New Moon 1%

04:58

21:29

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
17 Bad

Sun - Rise: 05:16, Set: 21:07, Transit: 13:12. Moon - Rise: 04:58, Set: 21:29. Civil Dark: 21:50 - 04:32. Nautical Dark: 22:51 - 03:31. Astro Dark: 00:42 - 01:28

Total Clouds (% Sky Obscured)

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

Low Clouds (% Sky Obscured)

74
73
72
73
69
69
68
63
60
54
57
51
49
50
48
51
48
45
44
43
39
36
37
43

Medium Clouds (% Sky Obscured)

92
90
78
67
63
80
84
88
93
68
100
100
100
86
73
63
77
89
100
100
100
95
100
98

High Clouds (% Sky Obscured)

81
54
26
0
6
32
34
51
71
84
100
45
100
98
96
94
95
97
100
100
100
89
27
13

ISS Passover

Visibility (miles)

9
9
9
9
9
9
5
2
5
9
7
6
7
8
9
9
9
7
7
8
9
9
8
5

Fog (%)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Precipitation Type

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

Precipitation Probability (%)

52
53
65
76
59
63
89
71
43
52
42
33
23
28
31
34
37
34
28
23
16
19
32
44

Precipitation Amount (mm)

0.3
0.2
0.4
0.6
0.2
0.2
1.1
0.6
0
0.4
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

80
90
91
95
95
93
93
96
93
95
90
88
88
87
84
80
80
80
80
77
72
70
68
73

Pressure (mb)

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

Ozone (du)

398
400
404
410
406
405
406
405
408
412
417
422
421
423
424
425
427
428
431
434
438
441
442
441

Sunday 17

Waxing Crescent 5%

05:42

23:01

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
17 Bad

Sun - Rise: 05:15, Set: 21:09, Transit: 13:12. Moon - Rise: 05:42, Set: 23:01. Civil Dark: 21:52 - 04:31. Nautical Dark: 22:53 - 03:29. Astro Dark: 00:57 - N/A

Total Clouds (% Sky Obscured)

89
52
100
100
100
100
100
100
89
85
98
83
85
83
85
79
82
79
71
77
85
100
100
100

Low Clouds (% Sky Obscured)

58
48
64
64
73
82
87
86
83
85
90
79
70
61
59
54
48
46
43
50
54
58
53
56

Medium Clouds (% Sky Obscured)

43
30
100
100
100
100
100
100
85
62
56
54
51
53
37
21
22
22
27
27
31
21
39
62

High Clouds (% Sky Obscured)

0
3
28
35
28
54
93
66
35
2
1
1
0
25
25
35
70
79
71
77
85
86
72
60

ISS Passover

Visibility (miles)

5
6
3
5
6
8
8
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Precipitation Type

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

Precipitation Probability (%)

53
50
58
72
67
70
85
91
94
95
95
90
83
39
34
34
35
30
25
24
23
25
24
27

Precipitation Amount (mm)

0.3
0.2
0.3
0.5
0.3
0.4
0.6
0.7
0.7
1
0.9
0.8
0.8
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

80
85
87
90
93
93
95
95
95
95
93
91
93
91
87
80
76
73
70
66
67
69
69
72

Pressure (mb)

1008
1007
1007
1007
1007
1006
1006
1005
1005
1005
1005
1005
1005
1005
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012

Ozone (du)

442
440
438
439
440
441
442
444
444
444
445
445
431
423
420
416
413
408
404
399
398
398
398
398

Monday 18

Waxing Crescent 12%

06:48

00:15

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
17 Bad

Sun - Rise: 05:13, Set: 21:10, Transit: 13:12. Moon - Rise: 06:48, Set: 00:15. Civil Dark: 21:54 - 04:29. Nautical Dark: 22:56 - 03:26. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

100
99
99
94
96
98
100
100
100
99
100
100
100
100
100
100
98
97
95
90
86
81
87
93

Low Clouds (% Sky Obscured)

58
62
75
83
85
86
87
86
87
86
92
93
95
97
97
100
96
93
89
84
80
76
83
89

Medium Clouds (% Sky Obscured)

85
86
83
78
84
89
97
97
98
99
90
78
58
52
43
37
32
30
41
46
38
27
19
10

High Clouds (% Sky Obscured)

46
33
18
9
33
60
85
90
90
85
85
88
94
84
75
66
47
28
9
11
8
2
10
16

ISS Passover

Visibility (miles)

8
8
8
9
9
9
9
9
7
5
3
5
6
7
5
3
0
3
6
9
8
6
4
5

Fog (%)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Precipitation Type

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

Precipitation Probability (%)

30
31
31
29
27
22
19
36
52
70
78
78
70
57
47
39
39
45
52
66
72
67
58
59

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

10
10
9
8
9
8
9
9
11
11
12
11
11
11
13
16
20
19
18
17
16
16
16
16

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

76
80
84
87
90
88
88
90
90
91
93
93
95
96
96
98
98
95
92
89
90
92
95
95

Pressure (mb)

1012
1011
1011
1011
1011
1011
1011
1010
1010
1009
1008
1008
1008
1008
1008
1008
1009
1009
1009
1010
1010
1010
1011
1011

Ozone (du)

398
398
399
400
401
400
399
398
397
395
394
397
399
402
401
400
399
399
398
398
395
392
389
386

Tuesday 19

Waxing Crescent 21%

08:11

01:08

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: 05:12, Set: 21:12, Transit: 13:12. Moon - Rise: 08:11, Set: 01:08. Civil Dark: 21:56 - 04:27. Nautical Dark: 22:58 - 03:24. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

99
99
100
100
100
100
99
99
98
98
99
99
100
94
88
83
85
91
97

Low Clouds (% Sky Obscured)

96
92
89
87
91
93
96
95
95
97
93
90
84
76
68
61
59
57
55

Medium Clouds (% Sky Obscured)

2
13
23
38
32
22
13
12
12
13
12
10
9
7
6
4
8
11
13

High Clouds (% Sky Obscured)

16
15
18
15
16
9
6
9
16
20
46
68
92
73
58
40
47
55
65

ISS Passover

Visibility (miles)

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

Fog (%)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Precipitation Type

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

Precipitation Probability (%)

53
35
28
23
22
23
29
23
24
28
21
18
16
16
17
12
10
11
12

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

14
14
13
13
13
13
13
13
13
13
13
13
13
13
13
13
14
14
15

Feels Like (°C)

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

Dew Point (°C)

13
13
13
13
13
13
13
13
12
12
12
12
11
11
11
11
11
11
11

Relative Humidity (%)

95
95
96
96
96
96
96
96
95
95
93
93
92
90
87
84
80
79
76

Pressure (mb)

1012
1012
1013
1013
1014
1014
1015
1015
1015
1016
1016
1016
1017
1017
1018
1018
1018
1019
1019

Ozone (du)

383
381
379
378
377
375
374
372
369
367
364
360
356
352
350
347
345
345
344

Forecast for Aberystwyth, Ceredigion, United Kingdom (52.42,-4.08)

Generated: 13/05/26 18:22:42. Forecast: 13/05/26 to 19/05/26. Timezone: UTC+1.00