Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 7

Waning Gibbous 69%

02:46

08:16

08 Good
09 Good
10 Bad
11 OK
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 OK
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad

Sun - Rise: 06:32, Set: 20:01, Transit: 13:18. Moon - Rise: 02:46, Set: 08:16. Civil Dark: 20:36 - 05:57. Nautical Dark: 21:19 - 05:14. Astro Dark: 22:07 - 04:26

Total Clouds (% Sky Obscured)

11
9
58
40
68
54
62
52
50
89
88
90
100
94
66
51
50
44
66
59
88
69
58
92

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
25

Medium Clouds (% Sky Obscured)

0
0
5
0
15
18
35
19
34
46
58
85
87
78
30
13
1
0
0
0
0
11
0
0

High Clouds (% Sky Obscured)

11
9
29
34
51
51
52
45
40
39
29
20
96
76
55
51
50
44
62
59
88
47
55
83

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 (%)

0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
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)

11
12
13
15
16
18
17
12
12
11
10
7
4
2
3
3
2
2
3
3
4
4
2
1

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

6
8
8
11
13
12
12
13
14
15
15
14
13
13
12
11
12
12
11
10
10
10
10
9

Dew Point (°C)

5
5
6
7
9
10
11
12
12
13
12
11
11
10
10
9
9
9
8
8
8
9
8
8

Relative Humidity (%)

73
64
62
58
59
62
64
65
66
69
70
72
75
78
81
83
86
86
85
87
87
88
88
90

Pressure (mb)

1018
1018
1017
1017
1017
1017
1017
1017
1017
1017
1017
1018
1019
1020
1020
1021
1021
1021
1021
1021
1022
1021
1022
1023

Ozone (du)

361
359
360
360
358
356
353
352
351
350
351
351
346
345
346
347
348
347
347
346
346
347
347
347

Wednesday 8

Waning Gibbous 59%

03:32

09:02

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

Sun - Rise: 06:30, Set: 20:03, Transit: 13:18. Moon - Rise: 03:32, Set: 09:02. Civil Dark: 20:38 - 05:55. Nautical Dark: 21:21 - 05:11. Astro Dark: 22:10 - 04:22

Total Clouds (% Sky Obscured)

89
59
48
33
26
35
8
7
30
23
73
67
83
100
97
96
100
100
100
100
100
98
100
100

Low Clouds (% Sky Obscured)

41
16
0
4
7
35
5
0
22
6
31
47
72
82
84
68
79
63
38
0
86
97
100
100

Medium Clouds (% Sky Obscured)

0
2
6
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
60
65
55
77
93
75

High Clouds (% Sky Obscured)

73
41
30
15
20
2
0
0
0
0
50
55
74
100
91
87
100
100
100
100
99
65
100
100

ISS Passover

Visibility (miles)

9
9
9
9
9
4
3
3
3
3
3
3
3
3
4
9
9
9
8
4
9
9
9
9

Fog (%)

0
0
0
2
4
11
45
63
100
100
100
100
52
33
84
100
100
100
100
100
100
59
39
35

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
Light Rain

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
1
0
0
0
3
1
0
0
0
0
0
0
9
82

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
0.8

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

10
12
13
14
15
15
16
16
15
14
13
12
12
11
9
9
9
8
8
7
7
6
6
5

Dew Point (°C)

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

Relative Humidity (%)

90
87
86
79
75
78
80
80
84
89
87
89
93
93
93
95
98
96
96
95
91
90
90
85

Pressure (mb)

1023
1024
1024
1023
1023
1023
1023
1023
1023
1023
1023
1023
1023
1023
1023
1022
1021
1021
1021
1020
1020
1019
1019
1018

Ozone (du)

350
349
350
351
354
357
360
361
360
361
360
359
360
359
359
360
362
364
365
366
367
366
363
366

Thursday 9

Waning Gibbous 49%

04:06

10:02

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
07 Bad

Sun - Rise: 06:28, Set: 20:04, Transit: 13:17. Moon - Rise: 04:06, Set: 10:02. Civil Dark: 20:40 - 05:52. Nautical Dark: 21:24 - 05:08. Astro Dark: 22:12 - 04:19

Total Clouds (% Sky Obscured)

99
100
100
83
98
90
63
19
47
62
47
50
90
96
97
98
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

95
94
96
57
61
58
48
19
18
23
39
1
0
21
41
55
56
54
53
65
63
69
68
74

Medium Clouds (% Sky Obscured)

67
67
67
15
53
35
24
0
27
29
22
0
0
0
0
1
70
72
75
78
77
79
81
87

High Clouds (% Sky Obscured)

98
100
100
50
60
23
0
0
21
28
23
27
55
55
49
35
100
100
100
100
100
100
100
99

ISS Passover

Visibility (miles)

9
9
9
0
7
9
6
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
Light Rain
Light Rain
None
Very Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

93
95
95
65
36
55
58
41
32
29
14
7
0
3
13
1
0
0
2
4
1
1
1
17

Precipitation Amount (mm)

0.6
1
1.1
0.4
0
0.3
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

9
11
16
11
19
18
20
23
21
19
17
16
13
12
13
15
14
11
9
7
7
7
7
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

6
5
4
4
3
3
2
1
2
3
3
3
2
2
2
2
1
2
2
3
2
2
2
2

Dew Point (°C)

6
6
8
9
7
6
6
5
3
3
3
3
2
2
2
2
0
-1
-1
-1
-1
-1
-0
0

Relative Humidity (%)

85
81
93
98
91
85
82
77
70
70
71
73
71
71
72
71
65
65
63
63
63
67
70
70

Pressure (mb)

1018
1018
1018
1019
1019
1019
1020
1020
1021
1021
1022
1022
1022
1023
1024
1024
1024
1024
1024
1023
1023
1022
1022
1022

Ozone (du)

370
373
374
377
382
388
397
399
391
382
377
375
371
366
361
358
355
354
353
349
348
347
348
350

Friday 10

Third Quarter 48%

04:30

11:13

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
07 Bad

Sun - Rise: 06:26, Set: 20:06, Transit: 13:17. Moon - Rise: 04:30, Set: 11:13. Civil Dark: 20:42 - 05:50. Nautical Dark: 21:26 - 05:06. Astro Dark: 22:15 - 04:16

Total Clouds (% Sky Obscured)

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

Low Clouds (% Sky Obscured)

76
77
66
60
56
54
58
46
25
12
1
21
40
58
51
48
41
62
64
67
69
71
77
74

Medium Clouds (% Sky Obscured)

93
95
100
100
100
96
89
84
85
89
93
90
77
56
87
75
100
93
88
88
93
96
100
95

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
85
70
60
60
60
60
50
45
35
35
45
55
60
60
65
65

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

Precipitation Probability (%)

25
36
49
56
52
39
23
9
7
5
2
19
34
50
74
88
95
76
56
26
30
37
58
70

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

10
11
13
14
15
15
17
18
21
22
22
23
22
23
23
20
18
17
16
15
15
15
16
17

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

71
70
62
63
64
63
63
67
67
69
69
67
62
60
64
68
74
75
73
77
82
87
90
95

Pressure (mb)

1021
1021
1020
1019
1018
1018
1016
1015
1013
1012
1010
1009
1009
1008
1007
1007
1006
1006
1006
1005
1005
1005
1005
1005

Ozone (du)

350
349
349
348
346
345
344
344
342
342
343
345
347
347
346
346
345
344
346
346
346
346
346
346

Saturday 11

Waning Crescent 39%

04:48

12:30

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
07 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)

98
97
95
94
92
93
93
95
97
98
100
76
72
76
84
93
100
100
100
100
100
99
99
99

Low Clouds (% Sky Obscured)

69
64
53
41
32
30
36
35
43
51
59
41
49
57
63
68
73
65
55
45
41
43
42
37

Medium Clouds (% Sky Obscured)

93
89
83
80
77
70
67
64
74
87
100
76
72
76
84
89
94
94
93
92
68
46
24
18

High Clouds (% Sky Obscured)

60
55
40
20
15
9
10
15
43
72
83
22
32
37
25
21
15
43
73
100
78
60
40
40

ISS Passover

Visibility (miles)

4
5
2
1
0
0
7
7
9
7
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
Light Rain
Light Rain
None
None
None
Very Light Rain
None
Very Light Rain
Very Light Rain
None
None
None
None
None
Light Rain
Very Light Rain
None
Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
None

Precipitation Probability (%)

78
95
95
78
49
36
49
57
50
56
68
47
44
48
44
45
56
49
48
84
62
55
59
48

Precipitation Amount (mm)

0.5
1.2
0.7
0.5
0
0
0
0.2
0
0.2
0.3
0
0
0
0
0
0.4
0.2
0
1
0.3
0.2
0.3
0

Wind Speed/Direction (mph)

17
17
16
17
18
20
21
20
20
21
21
20
15
15
14
10
9
11
12
11
12
13
13
14

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

7
7
8
7
5
2
2
4
5
3
4
4
5
4
4
4
4
4
3
3
3
3
3
3

Dew Point (°C)

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

Relative Humidity (%)

95
96
96
100
98
96
93
91
87
87
82
81
81
82
82
82
82
82
83
85
86
85
85
83

Pressure (mb)

1005
1006
1006
1006
1006
1007
1007
1007
1007
1007
1008
1008
1009
1009
1009
1009
1009
1010
1010
1010
1010
1010
1011
1011

Ozone (du)

346
346
346
345
346
346
345
345
347
350
353
355
358
361
363
365
367
369
370
371
372
374
376
379

Sunday 12

Waning Crescent 30%

05:02

13:49

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 OK
07 OK

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)

99
97
97
96
95
93
90
88
89
91
90
90
95
95
83
65
48
51
54
58
54
51
47
35

Low Clouds (% Sky Obscured)

24
22
28
33
38
31
21
14
8
6
4
3
2
1
4
9
16
9
3
0
1
2
2
3

Medium Clouds (% Sky Obscured)

18
18
19
24
28
24
12
0
0
0
1
8
16
23
26
27
43
51
54
48
47
46
45
35

High Clouds (% Sky Obscured)

30
25
20
15
15
10
10
15
20
25
25
25
25
26
46
65
48
51
54
58
54
51
47
35

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

Precipitation Probability (%)

45
46
32
37
45
26
22
23
14
8
2
3
2
1
4
4
1
2
2
0
0
0
0
0

Precipitation Amount (mm)

0
0.3
0
0
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

13
12
13
12
13
13
12
12
12
10
8
7
6
5
5
4
5
6
6
7
7
8
9
10

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

3
4
3
3
3
3
4
3
3
4
4
3
3
2
2
2
2
2
2
3
2
2
1
1

Relative Humidity (%)

81
77
71
70
69
69
70
70
70
73
75
77
78
79
80
82
82
83
83
85
85
80
76
72

Pressure (mb)

1011
1012
1012
1012
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1012
1012
1012
1011
1011
1010
1010

Ozone (du)

380
382
384
385
385
386
387
388
389
390
392
393
395
398
400
404
408
411
413
414
415
418
420
423

Monday 13

Waning Crescent 20%

05:14

15:10

08 OK
09 Good
10 OK
11 OK
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

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)

22
10
12
18
24
53
75
96
97
99
100
98
96
93
89
82
75

Low Clouds (% Sky Obscured)

5
5
7
13
20
36
48
61
68
74
77
70
63
57
47
37
27

Medium Clouds (% Sky Obscured)

22
10
12
18
24
53
66
73
80
90
100
90
79
74
66
64
61

High Clouds (% Sky Obscured)

22
10
12
18
24
52
37
25
35
50
63
39
18
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
8
7
6
7
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

Precipitation Type

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

Precipitation Probability (%)

0
0
11
11
9
25
39
54
82
95
95
89
73
49
35
24
12

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0.5
0.8
0.9
0.6
0.4
0
0
0
0

Wind Speed/Direction (mph)

11
11
12
12
11
12
11
12
13
10
7
7
6
5
4
5
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

4
4
4
4
5
6
11
11
11
10
10
9
5
6
6
6
5

Dew Point (°C)

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

Relative Humidity (%)

67
62
58
57
56
56
65
76
88
88
91
93
91
90
90
90
90

Pressure (mb)

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

Ozone (du)

428
433
438
442
445
449
451
453
455
455
454
453
441
429
416
412
407

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

Generated: 07/04/26 08:33:06. Forecast: 07/04/26 to 13/04/26. Timezone: UTC+1.00