Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 17

New Moon 0%

05:49

20:48

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
23 Bad

Sun - Rise: 06:11, Set: 20:13, Transit: 13:12. Moon - Rise: 05:49, Set: 20:48. Civil Dark: 20:48 - 05:36. Nautical Dark: 21:33 - 04:51. Astro Dark: 22:24 - 04:01

Total Clouds (% Sky Obscured)

98
95
100
100
100
100
99
97
96
100
100
100
100
100
100
100
96
82
61
72
48
64
70
80

Low Clouds (% Sky Obscured)

48
49
53
68
68
66
57
60
83
100
100
100
100
100
100
100
54
51
41
27
44
64
67
65

Medium Clouds (% Sky Obscured)

7
16
24
40
35
25
46
40
51
47
52
71
87
56
58
56
51
56
26
40
3
3
21
47

High Clouds (% Sky Obscured)

74
95
86
93
100
100
94
80
48
58
16
31
24
7
7
7
0
8
6
18
20
6
53
32

ISS Passover

Visibility (miles)

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

Precipitation Type

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

Precipitation Probability (%)

3
3
1
1
2
1
2
8
27
46
73
93
85
79
28
27
32
36
1
0
0
0
6
1

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0.3
0.7
0.6
0.6
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

93
95
96
96
95
91
91
88
90
90
87
84
92
93
93
92
87
88
91
88
91
95
96
96

Pressure (mb)

1018
1018
1018
1017
1017
1017
1016
1017
1017
1017
1017
1016
1017
1017
1017
1017
1017
1018
1018
1018
1019
1020
1020
1020

Ozone (du)

364
365
365
365
362
364
362
363
363
364
365
365
366
369
373
371
369
369
374
372
373
376
379
385

Saturday 18

Waxing Crescent 2%

06:07

22:21

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 OK
18 OK
19 Good
20 Good
21 Good
22 Good
23 Good

Sun - Rise: 06:09, Set: 20:14, Transit: 13:12. Moon - Rise: 06:07, Set: 22:21. Civil Dark: 20:50 - 05:33. Nautical Dark: 21:35 - 04:49. Astro Dark: 22:26 - 03:57

Total Clouds (% Sky Obscured)

71
66
69
71
70
75
65
57
43
50
58
62
74
77
79
70
59
37
29
0
0
0
0
0

Low Clouds (% Sky Obscured)

68
66
67
62
62
74
63
55
43
50
58
62
49
52
54
41
45
37
29
0
0
0
0
0

Medium Clouds (% Sky Obscured)

27
1
0
0
0
0
0
0
0
0
0
0
31
28
28
28
17
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

1
1
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
2
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 (%)

7
7
5
2
2
10
3
4
12
6
15
4
16
14
16
7
14
4
1
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

96
96
96
95
93
91
91
88
87
81
77
72
67
65
64
69
71
64
63
67
73
77
81
81

Pressure (mb)

1020
1021
1021
1021
1021
1021
1021
1022
1022
1023
1023
1023
1023
1024
1024
1024
1024
1024
1024
1025
1025
1026
1026
1027

Ozone (du)

391
392
389
391
394
395
398
399
399
401
402
405
407
407
405
405
406
408
410
413
416
415
414
412

Sunday 19

Waxing Crescent 7%

06:32

23:54

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

Sun - Rise: 06:07, Set: 20:16, Transit: 13:12. Moon - Rise: 06:32, Set: 23:54. Civil Dark: 20:52 - 05:31. Nautical Dark: 21:37 - 04:46. Astro Dark: 22:29 - 03:54

Total Clouds (% Sky Obscured)

11
15
14
14
23
30
32
5
2
28
40
59
68
61
79
74
67
77
62
50
32
30
34
36

Low Clouds (% Sky Obscured)

0
11
14
14
23
30
32
5
0
28
40
48
64
61
68
65
65
75
58
48
32
30
34
36

Medium Clouds (% Sky Obscured)

8
4
0
0
1
0
0
0
0
0
0
0
0
0
26
19
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

1
0
0
0
0
0
0
0
1
1
1
17
13
5
2
6
3
0
1
1
2
3
1
1

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
1
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)

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

Chance of Frost

Temperature (°C)

5
5
4
4
4
3
3
3
6
8
10
11
12
12
13
13
13
13
12
11
9
8
7
6

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

83
83
85
86
88
86
86
85
76
70
65
60
57
56
54
53
54
58
64
71
73
78
78
81

Pressure (mb)

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

Ozone (du)

407
404
402
399
398
396
394
393
392
391
390
389
389
389
389
390
390
389
388
388
388
388
389
390

Monday 20

Waxing Crescent 14%

07:08

No Set

00 OK
01 OK
02 OK
03 OK
04 OK
05 OK
06 OK
07 Good
08 Good
09 Good
10 OK
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 OK

Sun - Rise: 06:05, Set: 20:18, Transit: 13:11. Moon - Rise: 07:08, Set: No Set. Civil Dark: 20:54 - 05:29. Nautical Dark: 21:39 - 04:43. Astro Dark: 22:32 - 03:51

Total Clouds (% Sky Obscured)

40
26
16
21
35
36
29
5
5
4
20
37
89
92
97
100
97
94
91
57
82
79
48
20

Low Clouds (% Sky Obscured)

40
26
16
1
1
1
1
1
1
1
10
20
30
40
44
45
52
58
61
50
45
36
22
11

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
13
26
36
42
49
62
94
88
85
27
24
23
17
11

High Clouds (% Sky Obscured)

1
0
1
9
17
31
24
1
2
2
2
2
40
35
35
30
25
20
18
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
1
2
1
3
5
4
7
8
8
12
10
3
6
6

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

Chance of Frost

Temperature (°C)

6
6
5
4
4
4
3
4
6
8
9
10
11
12
12
12
11
11
11
11
9
8
7
6

Feels Like (°C)

5
4
3
3
2
1
0
1
4
5
7
7
8
8
8
8
8
8
8
8
7
5
4
4

Dew Point (°C)

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

Relative Humidity (%)

83
86
88
89
91
89
89
88
80
73
66
61
60
58
57
61
64
66
67
71
77
79
79
86

Pressure (mb)

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

Ozone (du)

390
390
389
389
390
392
394
396
397
397
398
400
402
404
407
409
412
412
412
412
412
411
410
413

Tuesday 21

Waxing Crescent 24%

08:01

01:16

00 Good
01 OK
02 OK
03 OK
04 OK
05 OK
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
23 Bad

Sun - Rise: 06:03, Set: 20:19, Transit: 13:11. Moon - Rise: 08:01, Set: 01:16. Civil Dark: 20:56 - 05:27. Nautical Dark: 21:42 - 04:41. Astro Dark: 22:35 - 03:48

Total Clouds (% Sky Obscured)

4
10
36
37
26
38
42
56
62
72
71
72
68
76
87
100
89
79
68
62
55
47
50
53

Low Clouds (% Sky Obscured)

0
0
0
0
12
23
35
47
60
72
71
69
67
76
87
100
83
66
48
42
36
30
32
33

Medium Clouds (% Sky Obscured)

2
7
36
37
13
10
6
4
4
38
46
43
3
24
41
53
38
20
7
3
1
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
1
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 (%)

2
2
1
0
0
1
1
4
17
16
13
8
26
33
34
35
34
33
32
25
19
13
11
7

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

90
91
93
94
94
94
93
85
79
85
90
88
76
80
81
84
85
84
81
78
82
84
88
88

Pressure (mb)

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

Ozone (du)

418
422
426
430
435
435
434
431
425
422
423
423
423
422
420
419
417
415
413
411
408
405
403
403

Wednesday 22

Waxing Crescent 35%

09:11

02:19

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

Sun - Rise: 06:01, Set: 20:21, Transit: 13:11. Moon - Rise: 09:11, Set: 02:19. Civil Dark: 20:58 - 05:25. Nautical Dark: 21:44 - 04:38. Astro Dark: 22:38 - 03:45

Total Clouds (% Sky Obscured)

58
53
48
39
34
19
20
15
18
17
16
29
33
44
46
43
31
19
1
2
2
3
3
2

Low Clouds (% Sky Obscured)

34
45
48
39
34
19
20
15
18
17
16
29
33
44
46
43
31
18
0
1
2
3
2
1

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
9
18
26
27
26
18
12
6
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
1
1

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

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

4
3
0
1
1
1
1
1
1
2
2
3
3
4
9
9
9
9
9
9
8
8
7
7

Dew Point (°C)

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

Relative Humidity (%)

88
88
86
86
86
86
86
86
81
75
73
68
65
62
60
59
57
61
65
71
75
77
81
85

Pressure (mb)

1025
1025
1025
1025
1025
1025
1026
1026
1026
1026
1026
1026
1026
1026
1025
1025
1024
1024
1024
1024
1024
1025
1025
1026

Ozone (du)

403
403
402
402
402
403
403
404
404
404
405
404
404
404
403
403
402
397
393
389
386
384
382
382

Thursday 23

Waxing Crescent 46%

10:34

03:03

Sun - Rise: 05:59, Set: 20:23, Transit: 13:11. Moon - Rise: 10:34, Set: 03:03. Civil Dark: 20:59 - 05:22. Nautical Dark: 21:46 - 04:36. Astro Dark: 22:40 - 03:41

Total Clouds (% Sky Obscured)

Low Clouds (% Sky Obscured)

Medium Clouds (% Sky Obscured)

High Clouds (% Sky Obscured)

ISS Passover

Visibility (miles)

Fog (%)

Precipitation Type

Precipitation Probability (%)

Precipitation Amount (mm)

Wind Speed/Direction (mph)

Chance of Frost

Temperature (°C)

Feels Like (°C)

Dew Point (°C)

Relative Humidity (%)

Pressure (mb)

Ozone (du)

Forecast for Barry, Vale of Glamorgan, United Kingdom (51.40,-3.28)

Generated: 17/04/26 00:39:25. Forecast: 17/04/26 to 23/04/26. Timezone: UTC+1.00