Clear Outside v1.0 - International Weather Forecasts For Astronomers

Wednesday 13

Waning Crescent 9%

03:54

18:19

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
18 Bad
19 OK
20 OK
21 OK
22 OK

Sun - Rise: 05:20, Set: 21:04, Transit: 13:12. Moon - Rise: 03:54, Set: 18:19. Civil Dark: 21:47 - 04:38. Nautical Dark: 22:46 - 03:39. Astro Dark: 00:17 - 02:00

Total Clouds (% Sky Obscured)

85
67
80
93
92
92
95
87
85
79
82
86
85
86
74
77
77
88
55
35
14
13
8
18

Low Clouds (% Sky Obscured)

56
67
68
72
69
67
79
62
58
49
58
60
52
57
59
51
45
47
47
35
14
13
5
18

Medium Clouds (% Sky Obscured)

16
24
22
26
22
25
23
17
20
20
60
81
85
78
33
17
71
75
42
23
0
3
2
3

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
2
2
0
0
0
0
0
0
0
2
1

ISS Passover

Visibility (miles)

9
8
9
9
9
9
9
8
9
9
9
6
6
7
8
7
6
8
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
Very Light Rain
None
None
None
None
None
None
None
None
Very Light Rain
Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
None
None
None
None
None
None
None

Precipitation Probability (%)

43
38
38
43
39
40
38
46
48
50
62
69
73
65
65
63
58
48
32
20
12
5
6
6

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

12
12
16
19
19
18
18
17
16
15
14
16
17
18
18
18
17
16
16
16
15
12
10
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

5
5
5
5
4
4
4
4
4
4
5
5
6
6
6
6
6
6
6
5
5
5
4
4

Relative Humidity (%)

81
81
82
84
78
78
75
77
77
77
77
76
76
74
77
73
72
72
73
67
66
70
74
77

Pressure (mb)

1005
1005
1005
1005
1005
1005
1005
1005
1005
1005
1005
1005
1005
1005
1005
1004
1004
1004
1004
1004
1005
1005
1006
1007

Ozone (du)

416
417
420
422
422
420
418
419
420
420
422
424
425
425
427
430
432
429
425
424
420
417
413
413

Thursday 14

Waning Crescent 3%

04:09

19:53

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 OK
15 OK
16 Good
17 Good
18 OK
19 Bad
20 Bad
21 Bad
22 Bad

Sun - Rise: 05:19, Set: 21:05, Transit: 13:12. Moon - Rise: 04:09, Set: 19:53. Civil Dark: 21:48 - 04:36. Nautical Dark: 22:48 - 03:36. Astro Dark: 00:24 - 01:52

Total Clouds (% Sky Obscured)

30
36
50
51
61
47
50
72
60
52
45
43
61
63
60
20
14
2
12
32
55
76
76
68

Low Clouds (% Sky Obscured)

30
36
44
45
50
35
43
47
59
52
45
43
55
47
50
20
14
0
11
0
31
52
60
60

Medium Clouds (% Sky Obscured)

6
5
48
38
5
0
1
15
0
0
0
0
0
0
0
0
0
0
0
17
26
44
39
31

High Clouds (% Sky Obscured)

1
1
1
7
20
13
1
0
0
0
0
0
9
0
0
0
0
2
2
2
2
2
5
9

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
3
13
28
41
25
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 (%)

8
9
8
21
24
17
17
30
32
26
32
27
21
9
3
1
0
0
1
0
0
1
11
16

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)

6
6
5
4
4
5
6
7
9
12
13
13
13
15
15
15
16
16
15
15
13
11
8
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

4
4
4
4
4
4
4
5
4
5
5
4
4
4
3
3
3
3
3
3
4
4
4
4

Relative Humidity (%)

84
85
88
86
86
90
88
85
77
78
76
70
66
61
59
56
56
57
60
62
66
70
78
82

Pressure (mb)

1007
1008
1008
1008
1008
1008
1008
1009
1009
1009
1010
1010
1010
1010
1010
1010
1010
1010
1010
1011
1011
1011
1011
1011

Ozone (du)

415
417
416
415
415
415
416
418
420
423
426
428
429
428
426
424
420
416
411
407
404
403
402
402

Friday 15

Waning Crescent 0%

04:28

21:29

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
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad

Sun - Rise: 05:17, Set: 21:07, Transit: 13:12. Moon - Rise: 04:28, Set: 21:29. Civil Dark: 21:50 - 04:34. Nautical Dark: 22:51 - 03:34. Astro Dark: 00:32 - 01:43

Total Clouds (% Sky Obscured)

85
57
54
91
95
98
98
96
98
96
98
98
100
83
99
91
92
100
100
100
100
100
100
99

Low Clouds (% Sky Obscured)

75
57
54
77
52
53
59
77
73
66
75
79
91
83
83
80
86
68
87
92
91
89
87
81

Medium Clouds (% Sky Obscured)

41
40
45
54
54
87
91
90
88
84
89
80
71
51
98
89
90
100
100
97
98
89
100
88

High Clouds (% Sky Obscured)

45
2
2
6
3
2
0
0
0
0
0
0
36
7
25
41
49
71
90
84
83
67
69
46

ISS Passover

Visibility (miles)

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

Fog (%)

0
0
0
0
0
0
3
9
8
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
Light Rain
Very Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

8
15
4
16
18
20
22
33
30
28
29
31
32
33
34
39
46
49
61
70
62
71
81
71

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

4
3
1
1
3
4
3
3
4
5
5
6
6
8
8
8
9
8
8
8
7
7
7
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

81
81
81
81
83
85
86
84
84
79
76
76
74
72
70
72
70
70
72
81
91
93
96
95

Pressure (mb)

1011
1011
1010
1010
1010
1010
1009
1009
1009
1009
1009
1009
1009
1009
1008
1008
1008
1008
1007
1008
1008
1007
1008
1008

Ozone (du)

400
398
397
396
395
395
395
394
392
392
393
393
393
393
393
395
396
394
391
393
395
401
406
409

Saturday 16

New Moon 1%

04:58

23:01

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
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad

Sun - Rise: 05:16, Set: 21:09, Transit: 13:12. Moon - Rise: 04:58, Set: 23:01. Civil Dark: 21:52 - 04:32. Nautical Dark: 22:53 - 03:31. Astro Dark: 00:42 - 01:28

Total Clouds (% Sky Obscured)

99
98
98
99
100
100
100
100
100
100
100
100
100
100
99
97
96
86
78
98
95
76
62
49

Low Clouds (% Sky Obscured)

75
69
67
65
66
60
60
54
52
54
55
48
39
27
31
33
36
36
41
54
53
50
53
49

Medium Clouds (% Sky Obscured)

88
79
86
93
100
100
91
90
98
96
94
94
96
98
85
74
52
50
48
93
91
76
51
34

High Clouds (% Sky Obscured)

25
5
37
70
100
100
100
100
100
100
100
85
70
60
60
60
60
44
33
13
27
15
3
0

ISS Passover

Visibility (miles)

7
5
4
3
7
9
8
9
8
9
9
7
9
9
9
9
9
9
9
9
6
5
7
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
Light Rain
Very Light Rain
Light Rain
Light Rain
None
Very Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
Very Light Rain
Very Light Rain
Very Light Rain

Precipitation Probability (%)

78
84
78
59
58
55
43
44
40
31
32
24
16
10
2
4
6
9
21
35
40
46
56
58

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

5
5
5
5
4
3
4
5
6
6
7
7
7
8
10
10
11
12
12
14
15
14
13
13

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

93
96
96
93
91
90
88
90
85
82
81
80
80
75
71
68
67
66
66
73
80
85
90
93

Pressure (mb)

1008
1008
1007
1008
1008
1008
1008
1008
1009
1009
1009
1010
1010
1010
1010
1010
1010
1010
1010
1009
1009
1009
1009
1009

Ozone (du)

407
402
402
402
404
407
411
414
417
419
421
424
427
431
434
436
435
434
434
433
433
433
433
435

Sunday 17

Waxing Crescent 5%

05:42

23:01

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
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad

Sun - Rise: 05:15, Set: 21:10, Transit: 13:12. Moon - Rise: 05:42, Set: 23:01. Civil Dark: 21:54 - 04:31. Nautical Dark: 22:56 - 03:29. Astro Dark: 00:57 - N/A

Total Clouds (% Sky Obscured)

35
50
54
49
45
39
35
25
25
28
45
59
62
48
58
69
79
86
93
100
100
100
100
100

Low Clouds (% Sky Obscured)

35
50
54
49
45
39
35
25
25
28
45
59
62
48
58
69
78
75
75
67
66
73
80
90

Medium Clouds (% Sky Obscured)

35
33
29
22
20
35
35
25
25
28
45
59
57
48
55
54
57
55
52
59
71
84
100
100

High Clouds (% Sky Obscured)

0
3
7
11
16
32
35
25
25
28
45
59
62
48
58
62
72
81
91
100
86
67
45
12

ISS Passover

Visibility (miles)

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

Precipitation Type

Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

63
74
76
81
89
80
79
83
82
92
95
94
93
85
95
87
87
95
95
95
95
95
95
95

Precipitation Amount (mm)

0.3
0.5
0.4
0.6
0.8
0.5
0.5
0.6
0.5
0.7
0.9
0.7
0.7
0.6
0.7
0.5
0.6
0.7
1
0.8
0.9
1.1
1.1
0.7

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

91
93
93
93
91
90
90
90
88
83
80
79
77
72
72
71
70
70
69
69
69
70
70
71

Pressure (mb)

1009
1009
1009
1008
1008
1008
1008
1008
1008
1009
1009
1009
1009
1009
1008
1008
1008
1008
1007
1007
1007
1007
1007
1007

Ozone (du)

436
436
438
439
438
437
438
439
438
429
423
416
416
410
401
398
394
391
389
388
386
386
385
385

Monday 18

Waxing Crescent 12%

06:48

00:15

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
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad

Sun - Rise: 05:13, Set: 21:12, Transit: 13:12. Moon - Rise: 06:48, Set: 00:15. Civil Dark: 21:56 - 04:29. Nautical Dark: 22:58 - 03:26. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
99
98
97
96
93
91
89
90
92
93
86
73
59
73

Low Clouds (% Sky Obscured)

100
100
96
92
88
89
90
92
90
88
86
83
80
78
80
79
81
81
84
87
75
63
51
65

Medium Clouds (% Sky Obscured)

100
99
89
78
67
48
28
9
22
37
52
59
68
73
73
66
60
49
41
40
48
36
17
41

High Clouds (% Sky Obscured)

4
3
31
59
86
91
96
100
88
75
63
46
28
7
7
6
6
10
23
33
25
11
0
4

ISS Passover

Visibility (miles)

8
6
5
6
6
7
7
6
6
6
6
7
6
5
4
3
3
2
3
4
5
6
8
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
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
None
None
None
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
None
None
None

Precipitation Probability (%)

81
59
55
56
56
55
52
51
68
84
95
85
84
70
78
92
95
94
95
91
69
50
41
42

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

13
13
13
13
13
13
13
14
14
14
14
15
15
15
16
15
15
15
15
15
15
14
14
13

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

76
80
86
89
90
92
92
92
93
90
86
83
83
83
83
87
90
95
93
92
90
90
92
93

Pressure (mb)

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

Ozone (du)

385
385
385
386
387
388
390
391
393
391
389
387
387
387
387
389
390
392
395
398
401
403
405
407

Tuesday 19

Waxing Crescent 21%

08:11

01:08

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
18 Bad

Sun - Rise: 05:12, Set: 21:13, Transit: 13:12. Moon - Rise: 08:11, Set: 01:08. Civil Dark: 21:57 - 04:27. Nautical Dark: N/A - 03:24. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

86
100
99
98
98
93
88
86
90
93
98
87
77
71
80
88
97
84
71
57

Low Clouds (% Sky Obscured)

80
94
93
92
95
91
87
83
86
89
90
70
54
48
53
53
53
54
55
55

Medium Clouds (% Sky Obscured)

65
87
71
57
46
37
29
20
16
17
16
17
25
34
45
48
50
34
15
1

High Clouds (% Sky Obscured)

7
10
6
5
5
4
2
0
25
51
76
54
27
2
33
63
94
63
38
13

ISS Passover

Visibility (miles)

6
3
0
2
4
6
6
6
6
7
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

Precipitation Type

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

Precipitation Probability (%)

60
81
70
58
51
35
28
36
27
24
32
21
18
26
20
19
25
20
18
20

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

13
13
13
13
13
13
13
13
13
14
14
14
15
15
16
16
16
16
16
16

Feels Like (°C)

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

Dew Point (°C)

13
13
13
13
13
13
13
13
13
13
13
13
13
12
12
12
12
12
13
13

Relative Humidity (%)

95
95
98
98
96
96
96
96
95
95
93
92
87
83
78
78
77
77
81
85

Pressure (mb)

1009
1010
1010
1011
1011
1012
1013
1014
1014
1015
1016
1017
1017
1018
1019
1019
1019
1020
1020
1020

Ozone (du)

408
409
410
403
396
388
386
383
380
376
373
369
364
359
355
352
350
347
346
344

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

Generated: 13/05/26 23:33:20. Forecast: 13/05/26 to 19/05/26. Timezone: UTC+1.00