Clear Outside v1.0 - International Weather Forecasts For Astronomers

Saturday 11

Waning Crescent 30%

04:48

12:30

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
10 Bad

Sun - Rise: 06:23, Set: 20:08, Transit: 13:17. Moon - Rise: 04:48, Set: 12:30. Civil Dark: 20:44 - 05:48. Nautical Dark: 21:28 - 05:03. Astro Dark: 22:17 - 04:13

Total Clouds (% Sky Obscured)

24
19
65
100
50
66
71
100
100
93
93
100
100
100
96
100
100
100
100
100
100
90
81
80

Low Clouds (% Sky Obscured)

24
19
52
52
47
34
47
46
78
82
83
80
76
76
72
75
77
70
69
61
66
49
43
40

Medium Clouds (% Sky Obscured)

23
19
65
99
34
65
48
100
99
89
92
90
96
97
75
100
41
43
55
100
100
77
72
71

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
16
0
21
35
62
93
100
67
93
62
50
50
19
0
0
0
0

ISS Passover

Visibility (miles)

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

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
Very Light Rain
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
None
None

Precipitation Probability (%)

60
92
95
82
68
68
88
64
68
89
80
88
92
92
88
95
92
87
83
74
71
53
35
30

Precipitation Amount (mm)

0.3
0.6
0.6
0.5
0.4
0.4
0.6
0.3
0.3
0.6
0.5
0.5
0.6
0.8
0.8
1.1
0.9
0.9
0.9
0.7
0.7
0.4
0
0

Wind Speed/Direction (mph)

19
22
24
26
26
26
28
29
28
29
28
27
27
27
27
26
25
24
22
21
20
19
19
20

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

1
1
-2
-2
-0
1
0
-1
-3
-3
-2
-1
-1
0
1
0
-0
0
0
1
1
1
1
2

Dew Point (°C)

2
2
4
4
5
5
5
4
4
5
6
6
6
6
6
6
6
5
5
6
5
5
5
5

Relative Humidity (%)

66
65
82
87
79
77
79
81
82
91
91
90
91
88
88
88
88
82
88
88
88
87
85
81

Pressure (mb)

1002
1002
1002
1002
1002
1001
1000
1000
999
999
1000
1000
1000
1000
1001
1001
1002
1003
1004
1005
1005
1006
1007
1007

Ozone (du)

427
439
446
449
445
444
454
470
481
480
477
480
477
475
475
474
472
474
475
476
478
477
478
479

Sunday 12

Waning Crescent 20%

05:02

13:49

11 Bad
12 Bad
13 Bad
14 Bad
15 OK
16 Bad
17 Bad
18 Bad
19 OK
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 OK
09 Bad
10 Bad

Sun - Rise: 06:21, Set: 20:10, Transit: 13:16. Moon - Rise: 05:02, Set: 13:49. Civil Dark: 20:45 - 05:45. Nautical Dark: 21:30 - 05:00. Astro Dark: 22:20 - 04:10

Total Clouds (% Sky Obscured)

62
48
30
24
26
23
25
40
32
45
55
74
82
66
74
91
94
56
60
73
65
41
63
69

Low Clouds (% Sky Obscured)

46
33
30
24
26
23
25
40
32
45
45
58
69
66
74
81
63
46
54
71
63
34
63
37

Medium Clouds (% Sky Obscured)

52
43
3
3
2
0
0
0
2
20
37
57
67
52
64
86
88
50
50
50
45
36
2
44

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
2
2
0
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

9
9
8
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8

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

Precipitation Probability (%)

19
21
29
31
17
26
27
24
12
12
34
38
46
44
43
39
26
12
4
16
15
6
19
43

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0.3
0.4
0.4
0.4
0.3
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

20
20
19
18
17
17
16
15
14
12
10
8
7
6
6
6
6
6
5
5
5
6
7
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

5
4
4
4
4
4
3
4
4
4
3
3
3
3
3
2
3
3
3
3
3
4
3
4

Relative Humidity (%)

78
72
72
72
69
69
67
70
77
81
82
83
86
86
86
85
86
86
83
82
82
82
74
72

Pressure (mb)

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

Ozone (du)

478
476
476
477
476
476
478
480
480
482
486
491
496
499
496
491
492
496
495
486
479
474
470
471

Monday 13

Waning Crescent 12%

05:14

15:10

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

Sun - Rise: 06:19, Set: 20:11, Transit: 13:16. Moon - Rise: 05:14, Set: 15:10. Civil Dark: 20:47 - 05:43. Nautical Dark: 21:32 - 04:58. Astro Dark: 22:23 - 04:06

Total Clouds (% Sky Obscured)

55
78
81
58
40
32
24
22
17
18
10
19
15
10
10
10
12
98
98
99
99
100
99
100

Low Clouds (% Sky Obscured)

25
53
68
57
40
32
24
22
17
18
10
19
15
2
10
10
12
16
25
29
33
38
51
70

Medium Clouds (% Sky Obscured)

43
56
50
50
6
0
0
0
17
16
5
0
0
1
2
2
12
18
17
27
28
29
74
96

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
10
3
50
37
32
33
34
36
53

ISS Passover

Visibility (miles)

6
5
4
5
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
Light Rain
Light Rain
Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

60
74
80
73
54
34
27
10
12
13
13
4
3
3
1
1
0
0
0
0
2
5
8
20

Precipitation Amount (mm)

0.3
0.5
0.5
0.4
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
10
10
10
10
9
8
7
5
4
4
4
5
5
5
5
5
5
5
6
6
8
9
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

69
70
72
72
73
73
72
72
78
82
83
88
90
90
90
89
91
89
89
89
88
85
74
66

Pressure (mb)

1012
1012
1012
1012
1013
1013
1013
1013
1013
1014
1015
1015
1015
1016
1016
1016
1016
1016
1016
1017
1017
1017
1017
1017

Ozone (du)

472
473
471
461
446
435
428
425
422
417
408
403
400
396
393
393
389
385
382
378
374
371
366
363

Tuesday 14

Waning Crescent 12%

05:25

16:32

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
10 Bad

Sun - Rise: 06:17, Set: 20:13, Transit: 13:16. Moon - Rise: 05:25, Set: 16:32. Civil Dark: 20:49 - 05:40. Nautical Dark: 21:34 - 04:55. Astro Dark: 22:25 - 04:03

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
98
66
70
99
99

Low Clouds (% Sky Obscured)

81
100
94
89
84
83
85
86
90
95
100
100
100
100
99
98
97
98
99
98
66
69
67
78

Medium Clouds (% Sky Obscured)

98
95
45
66
95
98
98
100
99
100
100
96
92
79
64
50
38
30
25
19
29
35
31
89

High Clouds (% Sky Obscured)

73
96
67
44
26
47
63
81
86
90
93
96
98
100
100
99
100
100
100
65
43
18
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
8
8
9
9
9
7
7
7
7
7
7
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
Very 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

Precipitation Probability (%)

26
30
25
38
54
59
81
95
95
95
95
95
95
88
52
24
9
9
14
7
6
11
16
19

Precipitation Amount (mm)

0
0
0
0
0.2
0.2
0.5
0.9
0.6
0.9
1.4
0.6
0.7
0.7
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

62
64
68
73
78
80
83
85
88
90
91
91
93
91
93
95
95
93
95
95
92
87
87
89

Pressure (mb)

1017
1017
1017
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1015
1015
1015
1015
1014
1014
1014
1014

Ozone (du)

360
358
355
352
351
350
350
348
346
343
341
341
340
339
339
338
338
340
345
352
352
352
350
350

Wednesday 15

Waning Crescent 6%

05:37

17:56

11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 OK
19 OK
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

Sun - Rise: 06:14, Set: 20:15, Transit: 13:16. Moon - Rise: 05:37, Set: 17:56. Civil Dark: 20:51 - 05:38. Nautical Dark: 21:37 - 04:52. Astro Dark: 22:28 - 04:00

Total Clouds (% Sky Obscured)

99
100
98
97
12
12
13
13
16
44
67
75
98
100
99
99
98
98
97
97
87
78
71
56

Low Clouds (% Sky Obscured)

89
100
89
77
12
12
13
13
16
44
67
70
75
77
74
71
68
73
76
81
74
66
58
53

Medium Clouds (% Sky Obscured)

71
91
92
87
0
0
0
0
0
0
0
0
0
0
9
20
30
37
47
51
40
25
11
14

High Clouds (% Sky Obscured)

6
65
4
0
0
0
0
0
0
0
0
21
42
59
32
9
0
2
4
6
20
37
55
56

ISS Passover

Visibility (miles)

9
7
2
1
8
9
8
9
9
9
9
9
9
7
5
5
5
5
5
5
4
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

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

Precipitation Probability (%)

44
87
95
92
90
74
51
19
16
19
14
19
30
33
42
43
46
34
37
47
37
35
39
29

Precipitation Amount (mm)

0
0.6
0.9
0.6
0.5
0.4
0
0
0
0
0
0
0
0
0
0
0.2
0
0
0.3
0
0
0.2
0

Wind Speed/Direction (mph)

17
19
20
20
17
17
18
17
18
17
16
16
17
18
18
18
18
17
17
17
16
17
17
18

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

90
90
95
96
90
77
80
83
86
88
90
90
88
88
88
88
90
90
90
91
91
90
88
87

Pressure (mb)

1013
1013
1013
1013
1013
1013
1013
1014
1014
1014
1015
1015
1015
1015
1015
1015
1015
1015
1016
1016
1016
1017
1017
1018

Ozone (du)

352
353
353
352
358
371
380
379
380
383
388
390
390
391
392
396
399
403
404
404
405
403
401
399

Thursday 16

Waning Crescent 2%

05:50

19:23

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
07 Bad
08 Bad
09 Bad
10 Bad

Sun - Rise: 06:12, Set: 20:17, Transit: 13:16. Moon - Rise: 05:50, Set: 19:23. Civil Dark: 20:53 - 05:36. Nautical Dark: 21:39 - 04:50. Astro Dark: 22:31 - 03:57

Total Clouds (% Sky Obscured)

40
24
46
59
77
84
92
100
100
97
93
87
89
89
94
94
92
91
91
97
97
98
100
100

Low Clouds (% Sky Obscured)

40
24
46
54
55
56
56
54
46
38
33
36
39
41
40
40
37
44
55
74
82
85
90
91

Medium Clouds (% Sky Obscured)

12
14
10
10
11
12
14
15
42
65
79
68
66
72
79
74
69
69
69
64
45
46
54
45

High Clouds (% Sky Obscured)

40
24
46
59
77
68
39
10
26
31
37
49
65
86
89
92
92
91
88
84
77
76
78
82

ISS Passover

Visibility (miles)

7
8
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 (%)

24
21
20
24
27
24
24
18
15
10
6
4
5
2
5
4
2
5
5
2
6
8
3
11

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)

17
17
16
16
15
14
13
12
10
8
7
7
7
7
7
7
7
8
7
7
7
9
10
12

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

9
9
9
8
8
8
8
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Relative Humidity (%)

84
81
77
76
75
73
77
80
84
87
90
91
93
95
96
95
95
95
93
91
88
87
84
81

Pressure (mb)

1018
1018
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1018
1018
1018
1018
1018
1018
1018

Ozone (du)

397
396
395
392
389
386
385
385
384
385
387
388
384
380
376
375
374
372
374
375
376
377
377
377

Friday 17

New Moon 0%

06:06

20:55

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: 06:10, Set: 20:18, Transit: 13:15. Moon - Rise: 06:06, Set: 20:55. Civil Dark: 20:55 - 05:33. Nautical Dark: 21:41 - 04:47. Astro Dark: 22:34 - 03:53

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
99
99
100
100
95
89
82
83
85
87
85
82
80

Low Clouds (% Sky Obscured)

93
91
88
87
90
87
84
78
83
89
98
93
85
73
73
79
87
85
82
80

Medium Clouds (% Sky Obscured)

37
31
40
56
63
49
48
46
54
69
81
69
58
44
35
30
24
21
25
35

High Clouds (% Sky Obscured)

85
89
92
96
100
76
49
24
16
13
10
5
5
10
10
10
10
16
11
7

ISS Passover

Visibility (miles)

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

Fog (%)

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

Precipitation Probability (%)

14
12
12
11
5
14
21
28
31
42
65
68
70
71
58
45
31
28
26
25

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

13
14
16
15
14
14
13
12
12
11
11
11
11
10
10
9
9
9
8
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

81
80
79
79
76
75
76
79
83
84
87
88
90
92
93
91
91
90
91
91

Pressure (mb)

1018
1017
1017
1017
1016
1016
1016
1016
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015

Ozone (du)

377
377
378
380
382
384
386
387
388
389
389
390
391
393
394
397
400
403
407
410

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

Generated: 11/04/26 11:12:31. Forecast: 11/04/26 to 17/04/26. Timezone: UTC+1.00