Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 23

Waxing Crescent 46%

11:59

03:41

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

28
33
48
39
8
9
6
3
2
0
0
0
0
0
1
0
0
0
0
0
0
1
3
3

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
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)

17
27
42
25
4
7
5
2
2
0
0
0
0
0
1
0
0
0
0
0
0
1
3
2

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
15
13
10
9
9
10
9
9
9
9
9
9
9
9
8
8
9
8
9
9
10
11

Chance of Frost

Temperature (°C)

16
17
16
14
13
12
11
11
10
10
9
8
6
6
6
6
8
11
13
14
16
17
17
18

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

56
62
66
70
76
77
75
75
78
82
85
87
88
88
86
83
73
57
47
42
41
41
42
44

Pressure (mb)

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

Ozone (du)

357
356
356
356
356
355
354
353
353
354
357
362
366
367
369
369
368
367
368
370
369
369
367
366

Friday 24

First Quarter 58%

13:24

04:00

16 Good
17 Good
18 OK
19 Good
20 Good
21 Good
22 Good
23 Good
00 Good
01 Good
02 Good
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

Sun - Rise: 05:55, Set: 20:30, Transit: 13:14. Moon - Rise: 13:24, Set: 04:00. Civil Dark: 21:08 - 05:17. Nautical Dark: 21:57 - 04:28. Astro Dark: 22:55 - 03:29

Total Clouds (% Sky Obscured)

4
6
20
12
3
8
6
5
5
4
4
82
95
100
100
100
100
100
100
100
96
91
91
95

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
0

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
21
80
100
100
100
100
99
65
57
62
65

High Clouds (% Sky Obscured)

1
4
15
12
2
7
3
2
3
3
4
81
95
100
100
100
100
100
100
100
80
62
62
53

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)

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

Chance of Frost

Temperature (°C)

17
17
17
15
13
11
10
9
9
9
8
8
8
8
8
9
11
12
14
15
16
17
16
16

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

47
52
60
67
74
78
81
81
80
78
77
77
75
74
71
72
70
61
57
53
49
47
51
54

Pressure (mb)

1023
1023
1023
1023
1023
1023
1023
1023
1023
1023
1022
1022
1022
1022
1021
1021
1022
1022
1022
1021
1021
1021
1022
1022

Ozone (du)

366
364
365
364
364
365
363
361
360
362
364
364
364
361
360
363
365
369
373
380
381
380
381
381

Saturday 25

Waxing Gibbous 69%

14:45

04:14

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
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad

Sun - Rise: 05:53, Set: 20:32, Transit: 13:14. Moon - Rise: 14:45, Set: 04:14. Civil Dark: 21:10 - 05:15. Nautical Dark: 21:59 - 04:26. Astro Dark: 22:59 - 03:25

Total Clouds (% Sky Obscured)

90
71
67
59
52
49
86
85
87
88
76
88
89
85
90
90
90
96
97
97
96
99
96
98

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
3
7
3
3
3
4
7
18
19

Medium Clouds (% Sky Obscured)

66
71
66
59
52
49
48
44
40
43
26
49
56
40
50
47
25
37
66
72
68
52
30
45

High Clouds (% Sky Obscured)

50
55
39
40
12
3
50
50
60
60
60
55
55
55
60
55
55
55
45
30
20
20
12
10

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

15
15
15
15
13
12
10
8
7
7
7
7
7
7
7
7
10
12
13
14
14
13
14
14

Dew Point (°C)

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

Relative Humidity (%)

54
56
55
64
64
64
65
65
64
66
68
70
76
76
78
78
73
69
63
60
61
61
64
64

Pressure (mb)

1021
1021
1022
1022
1022
1023
1023
1023
1023
1023
1024
1024
1024
1024
1024
1024
1025
1026
1026
1026
1026
1026
1026
1026

Ozone (du)

381
380
377
376
374
373
371
370
368
367
366
366
365
365
366
367
368
367
369
370
370
369
371
370

Sunday 26

Waxing Gibbous 78%

16:03

04:25

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 OK
08 Good
09 Good
10 Good
11 Good
12 Bad
13 OK
14 Bad
15 Bad

Sun - Rise: 05:51, Set: 20:34, Transit: 13:13. Moon - Rise: 16:03, Set: 04:25. Civil Dark: 21:12 - 05:13. Nautical Dark: 22:02 - 04:23. Astro Dark: 23:02 - 03:21

Total Clouds (% Sky Obscured)

96
93
63
43
79
89
86
87
90
90
90
75
84
80
60
37
8
6
4
0
50
42
52
70

Low Clouds (% Sky Obscured)

16
11
6
14
22
29
21
10
2
1
1
1
1
1
1
1
1
1
1
0
12
10
13
22

Medium Clouds (% Sky Obscured)

32
13
3
5
6
9
7
4
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

10
5
3
2
9
20
25
25
30
40
45
42
48
48
39
21
1
0
0
0
0
0
1
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
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
1
8
9
10
2

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

14
14
14
14
13
10
10
9
9
9
8
8
8
8
8
9
12
15
18
18
17
16
15
15

Dew Point (°C)

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

Relative Humidity (%)

66
66
67
71
77
80
80
80
78
80
80
80
81
82
84
84
80
74
69
64
65
68
71
71

Pressure (mb)

1026
1026
1026
1026
1027
1027
1028
1028
1028
1028
1028
1028
1028
1028
1029
1029
1029
1029
1029
1029
1029
1029
1028
1028

Ozone (du)

368
370
370
369
370
370
370
371
369
369
371
370
369
366
366
366
367
367
367
367
366
367
369
370

Monday 27

Waxing Gibbous 86%

16:03

04:35

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

Sun - Rise: 05:49, Set: 20:36, Transit: 13:13. Moon - Rise: 16:03, Set: 04:35. Civil Dark: 21:14 - 05:10. Nautical Dark: 22:04 - 04:20. Astro Dark: 23:06 - 03:18

Total Clouds (% Sky Obscured)

48
42
7
14
12
11
31
10
9
8
11
12
74
83
24
16
13
13
15
22
44
55
79
85

Low Clouds (% Sky Obscured)

16
16
7
6
4
1
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
5
14
22

Medium Clouds (% Sky Obscured)

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

High Clouds (% Sky Obscured)

3
3
0
4
5
6
18
9
9
7
4
1
12
13
3
11
9
9
15
15
10
11
15
20

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
4
11
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3
3
1

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

15
16
16
17
16
14
13
11
11
10
10
10
9
7
7
9
9
10
11
12
12
13
16
15

Dew Point (°C)

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

Relative Humidity (%)

72
72
73
77
82
84
87
87
87
87
87
85
84
84
87
88
80
74
68
65
62
59
61
63

Pressure (mb)

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

Ozone (du)

370
368
368
366
364
364
362
361
360
359
358
358
358
359
360
360
360
361
362
362
363
364
363
363

Tuesday 28

Waxing Gibbous 93%

17:19

04:45

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

Sun - Rise: 05:47, Set: 20:37, Transit: 13:13. Moon - Rise: 17:19, Set: 04:45. Civil Dark: 21:16 - 05:08. Nautical Dark: 22:06 - 04:18. Astro Dark: 23:09 - 03:14

Total Clouds (% Sky Obscured)

86
88
89
73
57
38
32
26
20
34
47
61
51
37
23
22
18
17
17
22
26
18
9
0

Low Clouds (% Sky Obscured)

34
42
50
40
25
6
7
7
8
7
5
5
5
7
9
13
18
17
17
22
26
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
0
0
0
0
0

High Clouds (% Sky Obscured)

30
36
38
31
18
10
6
3
2
3
5
10
10
8
4
3
1
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 (%)

5
6
5
4
3
0
0
0
0
0
0
0
1
0
0
2
2
1
2
2
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)

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

Chance of Frost

Temperature (°C)

18
17
16
15
14
12
10
9
9
8
8
7
7
7
7
7
8
10
11
12
13
14
14
15

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

64
67
70
73
78
83
88
90
88
88
90
90
91
91
91
91
87
82
78
75
70
67
63
62

Pressure (mb)

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

Ozone (du)

363
363
364
364
365
366
367
367
367
367
368
368
368
368
368
368
367
367
367
367
368
368
368
368

Wednesday 29

Waxing Gibbous 97%

18:34

04:55

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

Sun - Rise: 05:45, Set: 20:39, Transit: 13:13. Moon - Rise: 18:34, Set: 04:55. Civil Dark: 21:18 - 05:06. Nautical Dark: 22:09 - 04:15. Astro Dark: 23:13 - 03:10

Total Clouds (% Sky Obscured)

9
19
28
39
49
60
40
20
0
4
8
13
11
17
17
19
19
20
22
18
15

Low Clouds (% Sky Obscured)

9
19
28
39
49
58
39
19
0
4
8
13
11
17
17
19
19
20
22
18
15

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

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

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

Fog (%)

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

Precipitation Probability (%)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

60
63
67
70
75
83
88
88
90
90
90
90
91
90
88
90
78
71
64
60
57

Pressure (mb)

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

Ozone (du)

368
368
368
368
369
369
369
369
369
369
368
368
367
368
368
368
368
368
368
368
368

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

Generated: 23/04/26 15:58:03. Forecast: 23/04/26 to 29/04/26. Timezone: UTC+1.00