Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 27

Waxing Gibbous 86%

16:04

04:36

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

Sun - Rise: 05:48, Set: 20:39, Transit: 13:14. Moon - Rise: 16:04, Set: 04:36. Civil Dark: 21:19 - 05:08. Nautical Dark: 22:10 - 04:16. Astro Dark: 23:15 - 03:09

Total Clouds (% Sky Obscured)

44
53
44
3
18
75
78
48
27
15
14
19
29
28
70
75
76
77
75
71
70
61
50
52

Low Clouds (% Sky Obscured)

27
37
5
0
10
10
14
4
11
15
14
8
29
5
41
55
52
53
54
56
57
48
41
45

Medium Clouds (% Sky Obscured)

32
7
0
3
18
29
29
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

44
16
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
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
2
4
3
2
1
11
1
0
0
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)

10
10
11
10
8
6
5
6
6
6
6
8
13
16
16
16
17
16
16
16
16
16
16
17

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

70
70
70
71
77
87
85
85
90
90
91
93
90
85
82
82
84
85
82
78
78
75
73
73

Pressure (mb)

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

Ozone (du)

387
389
393
397
401
404
408
411
412
412
411
407
404
404
402
403
401
401
401
400
400
400
400
400

Tuesday 28

Waxing Gibbous 93%

17:21

04:45

15 OK
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
12 Good
13 Good
14 Good

Sun - Rise: 05:46, Set: 20:41, Transit: 13:14. Moon - Rise: 17:21, Set: 04:45. Civil Dark: 21:21 - 05:06. Nautical Dark: 22:13 - 04:13. Astro Dark: 23:19 - 03:05

Total Clouds (% Sky Obscured)

33
9
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
2
0
0
0

Low Clouds (% Sky Obscured)

24
4
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)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
2
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)

17
16
16
16
15
16
16
15
14
14
14
15
14
14
14
15
15
16
18
20
21
21
20
20

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

70
69
70
75
76
76
76
78
77
77
77
75
74
71
70
69
70
65
62
59
57
55
52
51

Pressure (mb)

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

Ozone (du)

400
400
399
398
398
398
398
397
395
395
395
394
396
395
393
393
393
394
394
394
394
394
395
399

Wednesday 29

Waxing Gibbous 97%

18:37

04:55

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

Sun - Rise: 05:44, Set: 20:43, Transit: 13:14. Moon - Rise: 18:37, Set: 04:55. Civil Dark: 21:23 - 05:03. Nautical Dark: 22:15 - 04:10. Astro Dark: 23:23 - 03:01

Total Clouds (% Sky Obscured)

0
0
0
0
3
30
25
25
20
30
7
32
45
72
63
75
75
75
13
9
13
26
35
41

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)

0
0
0
0
2
30
25
25
20
30
7
32
45
44
28
30
30
28
12
9
13
26
35
41

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)

20
20
19
20
19
18
18
18
18
18
18
16
15
15
15
15
16
16
15
15
15
15
15
14

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

12
13
14
12
11
10
7
6
5
4
4
6
4
4
4
4
5
7
9
11
13
15
16
17

Dew Point (°C)

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

Relative Humidity (%)

49
52
57
59
63
66
62
57
56
57
60
65
69
72
73
75
73
65
58
51
48
47
45
44

Pressure (mb)

1025
1024
1024
1023
1023
1024
1024
1024
1024
1024
1024
1024
1024
1023
1023
1022
1022
1022
1022
1022
1022
1021
1021
1020

Ozone (du)

403
404
405
402
395
392
390
390
387
385
385
385
384
384
384
384
385
387
387
388
388
387
386
384

Thursday 30

Waxing Gibbous 99%

19:54

05:06

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
11 Bad
12 Bad
13 Bad
14 Bad

Sun - Rise: 05:42, Set: 20:44, Transit: 13:14. Moon - Rise: 19:54, Set: 05:06. Civil Dark: 21:25 - 05:01. Nautical Dark: 22:18 - 04:08. Astro Dark: 23:27 - 02:56

Total Clouds (% Sky Obscured)

50
50
91
60
99
100
100
100
99
100
88
79
73
75
73
75
83
84
100
100
100
100
99
85

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
6
3
2
2
16
18
18
18
9
25
38
51
64
69
66

Medium Clouds (% Sky Obscured)

0
0
0
0
0
1
18
13
39
43
41
39
37
45
52
60
73
79
100
99
100
100
72
43

High Clouds (% Sky Obscured)

50
50
91
60
98
99
100
100
82
93
78
68
16
20
12
2
29
44
73
54
69
75
59
33

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
3
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
Very Light Rain
None
None
None
Very Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
1
3
6
24
62
46
24
33
53
75
89

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0
0
0
0.2
0.5
0.7

Wind Speed/Direction (mph)

13
12
10
9
7
6
5
5
4
3
2
2
3
3
3
3
3
3
4
4
5
7
8
8

Chance of Frost

Temperature (°C)

20
21
20
20
19
16
14
13
12
11
11
10
10
9
10
10
10
12
13
15
14
14
12
13

Feels Like (°C)

18
19
19
18
19
15
13
11
10
9
9
9
8
8
8
9
9
10
11
14
13
12
11
10

Dew Point (°C)

8
9
9
10
12
11
9
8
7
7
6
5
4
4
3
3
4
7
11
14
12
11
10
9

Relative Humidity (%)

45
46
47
55
62
69
70
70
73
75
71
69
69
67
62
60
65
72
86
90
86
83
83
77

Pressure (mb)

1020
1019
1019
1019
1019
1020
1020
1020
1020
1020
1020
1020
1019
1019
1019
1018
1018
1018
1019
1019
1019
1019
1019
1018

Ozone (du)

383
382
379
376
373
373
372
372
372
373
370
368
368
368
367
367
365
364
364
366
365
364
365
366

Friday 1

Full Moon 100%

21:11

05:21

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
11 Bad
12 Bad
13 Bad
14 Bad

Sun - Rise: 05:40, Set: 20:46, Transit: 13:14. Moon - Rise: 21:11, Set: 05:21. Civil Dark: 21:27 - 04:59. Nautical Dark: 22:20 - 04:05. Astro Dark: 23:31 - 02:52

Total Clouds (% Sky Obscured)

100
99
100
100
100
100
100
100
100
100
100
100
100
96
94
92
99
100
100
100
100
100
82
65

Low Clouds (% Sky Obscured)

79
64
43
31
22
15
7
28
45
62
66
80
85
84
83
82
92
91
90
84
79
76
69
60

Medium Clouds (% Sky Obscured)

100
97
95
100
91
24
11
18
32
47
43
37
45
36
30
30
88
76
64
61
58
54
42
27

High Clouds (% Sky Obscured)

36
58
100
82
73
100
100
100
100
100
100
100
100
73
43
10
56
53
35
28
13
13
11
7

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
5
3
3
3
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
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
Very Light Rain
None
None
None
None

Precipitation Probability (%)

95
77
54
15
12
4
1
0
0
0
2
3
2
15
10
15
41
45
47
53
49
45
38
27

Precipitation Amount (mm)

0.8
0.4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

7
9
8
8
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
8
8
8
8

Relative Humidity (%)

69
80
70
70
76
84
91
95
96
95
96
96
95
93
93
90
93
87
83
77
76
74
71
69

Pressure (mb)

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

Ozone (du)

366
365
365
364
365
365
370
372
373
374
379
384
386
390
395
395
392
392
391
390
390
389
388
386

Saturday 2

Waning Gibbous 98%

22:27

05:41

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
11 Bad
12 Bad
13 Bad
14 Bad

Sun - Rise: 05:38, Set: 20:48, Transit: 13:14. Moon - Rise: 22:27, Set: 05:41. Civil Dark: 21:29 - 04:57. Nautical Dark: 22:23 - 04:02. Astro Dark: 23:36 - 02:47

Total Clouds (% Sky Obscured)

48
56
64
71
76
82
88
88
88
81
73
76
83
86
85
87
89
86
79
76
73
70
69
68

Low Clouds (% Sky Obscured)

48
35
22
9
20
32
42
44
45
49
57
66
70
68
69
66
58
47
39
40
41
42
39
37

Medium Clouds (% Sky Obscured)

12
11
9
9
30
48
67
71
72
67
51
48
47
45
32
12
14
16
14
10
11
12
19
20

High Clouds (% Sky Obscured)

4
5
5
5
4
4
13
23
24
30
35
29
18
12
5
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
7
6
4
6
7
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 (%)

21
16
12
3
6
6
3
7
9
8
15
19
21
18
15
9
13
13
7
10
10
7
6
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

68
66
70
75
79
81
85
88
90
93
96
96
96
95
93
93
91
84
74
68
65
63
61
60

Pressure (mb)

1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1015
1015
1015
1015
1015
1015
1015
1015
1015
1016
1016
1016
1016
1016

Ozone (du)

383
381
381
380
380
379
379
378
380
382
383
386
388
391
392
393
394
393
392
391
390
389
388
389

Sunday 3

Waning Gibbous 95%

23:40

06:10

15 Bad
16 Bad
17 OK
18 OK
19 OK
20 OK
21 Good
22 OK
23 OK
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

Sun - Rise: 05:36, Set: 20:50, Transit: 13:14. Moon - Rise: 23:40, Set: 06:10. Civil Dark: 21:31 - 04:55. Nautical Dark: 22:25 - 03:59. Astro Dark: 23:40 - 02:42

Total Clouds (% Sky Obscured)

65
50
34
23
23
19
14
29
44
61
74
86
98
91
87
76
73
71
71
69
70
74

Low Clouds (% Sky Obscured)

34
23
15
6
5
2
1
3
8
14
11
17
20
25
25
25
40
49
62
66
70
74

Medium Clouds (% Sky Obscured)

24
15
6
0
3
5
8
12
21
31
34
24
21
18
17
16
12
7
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
16
29
44
27
19
6
13
18
21
13
5
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

Fog (%)

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

Precipitation Probability (%)

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

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

10
10
10
10
10
8
8
8
7
5
5
4
3
3
3
4
4
5
6
6
7
7

Dew Point (°C)

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

Relative Humidity (%)

58
58
60
64
67
70
77
81
82
82
81
82
82
83
83
84
82
78
73
70
67
64

Pressure (mb)

1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015

Ozone (du)

390
390
390
389
388
388
388
388
387
387
387
386
385
384
384
384
384
383
383
382
383
384

Forecast for Llangristiolus, Anglesey, United Kingdom (53.23,-4.35)

Generated: 27/04/26 15:28:40. Forecast: 27/04/26 to 03/05/26. Timezone: UTC+1.00