Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 17

New Moon 0%

06:06

20:55

12 Bad
13 Bad
14 Bad
15 Bad
16 OK
17 Good
18 Good
19 OK
20 OK
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

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
99
99
99
23
7
12
22
26
53
63
84
82
88
89
88
83
79
70
85
96
85
93
89

Low Clouds (% Sky Obscured)

60
51
57
27
2
1
12
22
26
53
63
80
71
69
72
68
68
79
70
61
79
66
63
70

Medium Clouds (% Sky Obscured)

93
88
82
1
0
0
0
0
0
0
0
0
0
13
15
17
20
0
0
22
26
0
22
16

High Clouds (% Sky Obscured)

7
2
0
1
0
0
0
0
0
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

66
95
50
21
19
4
1
0
4
9
21
24
29
33
39
45
48
52
40
32
33
31
40
42

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

15
15
16
18
17
17
16
15
16
15
14
14
14
14
15
16
15
14
13
11
12
12
11
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

89
77
74
77
76
76
77
81
85
90
93
93
91
90
93
93
91
93
95
93
93
90
87
88

Pressure (mb)

1015
1015
1016
1016
1016
1016
1016
1016
1017
1018
1018
1019
1019
1019
1019
1019
1019
1020
1020
1021
1021
1022
1023
1023

Ozone (du)

376
380
381
386
391
397
402
404
404
402
402
403
406
408
405
401
401
404
408
416
413
411
409
407

Saturday 18

Waxing Crescent 2%

06:29

22:30

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

Sun - Rise: 06:08, Set: 20:20, Transit: 13:15. Moon - Rise: 06:29, Set: 22:30. Civil Dark: 20:57 - 05:31. Nautical Dark: 21:43 - 04:44. Astro Dark: 22:37 - 03:50

Total Clouds (% Sky Obscured)

77
58
35
21
4
31
34
29
31
23
15
19
24
27
44
51
48
53
46
30
13
38
41
41

Low Clouds (% Sky Obscured)

65
58
35
21
3
31
22
29
31
23
15
19
24
27
27
35
41
46
44
29
10
34
38
41

Medium Clouds (% Sky Obscured)

19
3
0
0
0
12
18
0
0
0
0
0
0
1
2
2
3
3
2
3
4
6
5
1

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
4
30
45
35
32
15
8
3
3
3
4

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
7
32
76
56
99
56
55
56
2
16

Precipitation Type

Very Light Rain
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 (%)

40
24
17
3
2
3
8
11
3
17
2
0
0
0
0
1
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0.2
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
12
12
10
9
9
9
6
4
3
2
2
2
2
2
2
3
4
4
4
3
2
3
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

5
6
6
7
8
8
8
9
8
8
7
7
6
6
5
3
2
3
2
3
6
9
9
10

Dew Point (°C)

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

Relative Humidity (%)

87
84
80
76
72
72
71
78
85
85
87
87
88
88
90
90
88
89
86
85
79
71
66
61

Pressure (mb)

1024
1024
1025
1025
1025
1025
1025
1026
1026
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1028
1028
1028
1028

Ozone (du)

406
406
407
409
410
414
417
418
412
408
406
404
402
399
397
395
394
393
392
391
391
393
393
392

Sunday 19

Waxing Crescent 7%

07:04

00:04

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

Sun - Rise: 06:06, Set: 20:22, Transit: 13:15. Moon - Rise: 07:04, Set: 00:04. Civil Dark: 20:59 - 05:29. Nautical Dark: 21:45 - 04:42. Astro Dark: 22:40 - 03:46

Total Clouds (% Sky Obscured)

30
39
33
37
26
22
32
63
35
10
10
10
11
12
15
11
10
11
2
10
7
10
86
95

Low Clouds (% Sky Obscured)

30
21
0
0
4
17
29
55
35
1
1
1
1
1
7
1
1
0
0
1
1
1
27
45

Medium Clouds (% Sky Obscured)

0
1
1
2
3
2
2
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
9
18

High Clouds (% Sky Obscured)

4
30
33
37
18
4
6
7
3
3
3
3
3
4
5
3
2
3
0
1
0
0
0
0

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 (%)

9
1
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
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
4

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

61
61
65
65
68
71
71
73
74
74
78
78
76
75
76
76
78
83
86
86
81
74
63
61

Pressure (mb)

1028
1028
1028
1027
1027
1027
1026
1026
1026
1027
1027
1027
1027
1027
1027
1027
1026
1026
1026
1026
1027
1026
1026
1026

Ozone (du)

391
388
387
387
387
387
387
386
385
384
385
386
387
387
387
388
388
389
390
392
393
393
395
398

Monday 20

Waxing Crescent 14%

07:56

01:27

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

Sun - Rise: 06:04, Set: 20:23, Transit: 13:15. Moon - Rise: 07:56, Set: 01:27. Civil Dark: 21:01 - 05:26. Nautical Dark: 21:48 - 04:39. Astro Dark: 22:43 - 03:43

Total Clouds (% Sky Obscured)

97
88
80
95
89
86
95
96
95
42
20
7
4
7
8
8
59
88
82
53
26
52
53
81

Low Clouds (% Sky Obscured)

57
49
41
43
31
28
30
25
25
9
3
1
1
3
4
6
10
20
31
30
26
52
44
43

Medium Clouds (% Sky Obscured)

27
27
30
33
36
33
33
32
33
28
20
7
0
0
0
0
0
0
0
1
2
3
4
4

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
1
3
2
33
45
33
18
5
7
5
3

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
7
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 (%)

7
9
16
17
18
19
20
16
7
3
0
0
0
0
0
0
0
0
0
0
0
0
1
5

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)

5
5
4
5
5
5
6
8
8
8
8
8
8
8
7
6
5
5
6
6
8
11
13
13

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

6
8
10
10
9
10
9
8
6
5
5
5
5
4
3
3
3
1
1
1
3
4
4
5

Dew Point (°C)

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

Relative Humidity (%)

61
59
54
57
65
61
66
75
80
87
90
88
90
88
86
88
91
93
90
86
84
81
81
78

Pressure (mb)

1026
1026
1026
1025
1025
1025
1025
1025
1026
1027
1027
1027
1027
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028

Ozone (du)

401
402
403
401
401
401
401
402
403
404
402
400
399
397
396
394
392
390
389
388
387
387
386
386

Tuesday 21

Waxing Crescent 24%

09:07

02:30

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 OK
06 OK
07 OK
08 Good
09 Good
10 Good
11 Good

Sun - Rise: 06:02, Set: 20:25, Transit: 13:14. Moon - Rise: 09:07, Set: 02:30. Civil Dark: 21:03 - 05:24. Nautical Dark: 21:50 - 04:36. Astro Dark: 22:46 - 03:39

Total Clouds (% Sky Obscured)

42
62
50
44
89
47
89
88
78
73
90
90
69
67
66
64
54
43
32
21
12
3
2
1

Low Clouds (% Sky Obscured)

18
24
13
8
27
16
23
17
8
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1

Medium Clouds (% Sky Obscured)

4
8
11
14
10
6
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

8
6
9
3
4
9
15
10
9
11
15
15
14
24
43
49
40
31
23
13
6
1
0
0

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 (%)

5
13
6
14
6
2
2
1
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

5
7
7
8
9
6
9
6
5
4
3
2
1
1
1
1
1
1
0
-0
1
2
3
3

Dew Point (°C)

6
6
6
6
7
7
7
7
6
6
4
3
1
-0
0
0
1
1
0
0
1
1
2
3

Relative Humidity (%)

74
65
65
64
64
70
67
71
73
76
74
74
69
65
67
68
71
71
71
71
67
63
60
58

Pressure (mb)

1027
1027
1027
1026
1026
1026
1026
1026
1026
1027
1027
1027
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028

Ozone (du)

387
385
386
386
384
383
383
382
382
382
382
383
383
383
383
383
383
384
384
385
386
386
387
385

Wednesday 22

Waxing Crescent 35%

10:31

03:13

12 Good
13 Good
14 Good
15 Good
16 Good
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 Good
07 Good
08 Good
09 Good
10 Good
11 Good

Sun - Rise: 05:59, Set: 20:27, Transit: 13:14. Moon - Rise: 10:31, Set: 03:13. Civil Dark: 21:04 - 05:22. Nautical Dark: 21:52 - 04:34. Astro Dark: 22:49 - 03:36

Total Clouds (% Sky Obscured)

1
4
4
2
0
0
2
1
3
0
0
0
0
0
0
0
6
9
12
3
2
0
0
0

Low Clouds (% Sky Obscured)

1
4
4
2
0
0
2
1
3
0
0
0
0
0
0
0
6
9
9
3
2
0
0
0

Medium 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
0

High 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
0

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
0
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

3
4
10
10
10
11
11
11
9
10
8
8
8
8
5
5
5
5
5
5
4
4
4
5

Dew Point (°C)

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

Relative Humidity (%)

56
57
57
58
59
63
66
70
72
73
76
78
81
84
84
85
87
85
85
85
78
73
68
64

Pressure (mb)

1027
1027
1027
1026
1026
1026
1025
1025
1026
1026
1026
1026
1027
1027
1027
1027
1027
1028
1028
1028
1028
1028
1028
1028

Ozone (du)

383
382
381
381
380
381
382
382
384
385
387
387
388
388
387
386
385
388
392
395
394
393
393
394

Thursday 23

Waxing Crescent 46%

11:59

03:41

12 Good
13 Good
14 Good
15 Good
16 Good
17 OK
18 OK
19 OK
20 OK
21 Good
22 Good
23 Good
00 OK
01 OK
02 OK
03 OK
04 OK
05 OK
06 Good

Sun - Rise: 05:57, Set: 20:29, Transit: 13:14. Moon - Rise: 11:59, Set: 03:41. Civil Dark: 21:06 - 05:19. Nautical Dark: 21:55 - 04:31. Astro Dark: 22:52 - 03:32

Total Clouds (% Sky Obscured)

0
0
1
1
4
17
26
25
20
14
12
10
9
14
21
27
18
9
0

Low Clouds (% Sky Obscured)

0
0
1
1
2
2
4
5
5
5
6
7
8
14
21
27
18
9
0

Medium Clouds (% Sky Obscured)

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

High Clouds (% Sky Obscured)

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

ISS Passover

Visibility (miles)

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

Precipitation Type

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
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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

5
6
11
11
11
11
12
13
12
13
13
12
12
11
7
7
6
6
6

Dew Point (°C)

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

Relative Humidity (%)

60
56
56
56
56
60
63
69
72
79
84
85
88
90
90
91
90
90
90

Pressure (mb)

1028
1028
1027
1027
1026
1026
1026
1026
1026
1026
1026
1026
1026
1026
1026
1026
1026
1026
1026

Ozone (du)

395
396
395
394
393
392
391
389
388
387
386
385
385
384
381
378
375
375
375

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

Generated: 17/04/26 12:51:52. Forecast: 17/04/26 to 23/04/26. Timezone: UTC+1.00