Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 27

Waxing Gibbous 86%

16:04

04:36

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

11
28
43
56
62
50
4
0
13
30
7
8
16
12
18
40
40
37
63
90
97
79
83
64

Low Clouds (% Sky Obscured)

0
28
35
25
30
0
0
0
0
5
7
0
6
12
18
40
40
16
51
88
97
73
77
52

Medium Clouds (% Sky Obscured)

0
9
43
56
60
35
1
0
7
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

52
28
43
55
5
2
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
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

Fog (%)

-
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
1
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

15
12
11
11
10
9
10
11
11
10
8
9
8
8
7
7
6
6
3
4
5
5
5
5

Dew Point (°C)

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

Relative Humidity (%)

64
70
70
71
70
69
72
79
87
93
95
95
95
93
93
91
91
88
78
80
82
80
80
78

Pressure (mb)

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

Ozone (du)

372
374
377
381
383
383
385
387
389
391
394
397
399
397
393
390
390
390
391
391
392
392
391
391

Tuesday 28

Waxing Gibbous 93%

17:21

04:45

12 Bad
13 Bad
14 Bad
15 OK
16 OK
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: 05:46, 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)

55
52
45
35
18
7
5
0
0
0
0
0
0
0
0
1
0
1
1
1
0
0
0
0

Low Clouds (% Sky Obscured)

48
43
37
27
6
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)

1
1
2
0
1
1
0
0
0
0
0
0
0
0
0
1
0
1
1
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 (%)

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 (%)

1
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
17
18
18
17
15
15
13
14
15
15
15
14
14
15
15
15
15
15
16
17
19
21
21

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

76
72
75
71
66
67
73
79
78
78
81
81
78
79
79
77
74
72
72
71
68
64
62
59

Pressure (mb)

1029
1029
1029
1029
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028
1027
1027
1027
1027
1027
1027
1027
1027

Ozone (du)

390
389
389
388
389
388
388
388
388
387
387
387
389
390
391
392
393
391
391
392
393
395
398
399

Wednesday 29

Waxing Gibbous 97%

18:37

04:55

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

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
4
16
3
15
77
35
21
12
7
46
13
17
78
76
12
67
65
60
60
55
61
58

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
3
4

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
33
50
45

High Clouds (% Sky Obscured)

0
0
4
16
3
15
73
33
21
11
3
18
5
6
29
28
3
24
25
25
20
20
18
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 (%)

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

22
22
21
20
20
21
20
20
19
19
18
18
18
17
17
17
17
16
15
15
15
14
13
13

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

56
53
51
53
55
58
60
62
64
62
62
61
61
63
67
69
70
74
74
74
69
60
55
52

Pressure (mb)

1026
1025
1025
1024
1024
1023
1023
1023
1023
1023
1024
1023
1023
1023
1022
1022
1021
1021
1021
1020
1020
1020
1020
1019

Ozone (du)

399
397
391
388
385
383
382
381
381
382
382
383
382
381
381
382
381
378
374
371
369
367
366
364

Thursday 30

Waxing Gibbous 99%

19:54

05:06

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
08 Bad
09 Bad
10 Bad
11 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)

55
70
80
89
93
96
100
100
100
100
100
100
100
96
92
87
90
93
65
56
55
51
46
81

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
10
25
35
35
30
25
25
25
25
25
48
71
65
56
55
51
46
71

Medium Clouds (% Sky Obscured)

45
45
45
40
60
78
100
100
100
100
100
100
67
58
50
36
36
39
38
25
11
0
12
23

High Clouds (% Sky Obscured)

23
42
62
82
89
94
100
100
100
100
83
67
38
8
10
13
25
41
50
35
30
26
29
78

ISS Passover

Visibility (miles)

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

1
1
2
2
4
10
33
40
48
47
36
33
26
39
45
29
35
33
8
12
16
5
4
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
11
12
13
13
11
10
9
7
6
4
3
2
3
3
4
4
4
5
6
9
12
14
15

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

54
62
54
50
58
61
70
83
93
95
95
95
96
93
91
95
96
93
91
96
90
81
76
71

Pressure (mb)

1019
1019
1018
1018
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1018
1018
1018

Ozone (du)

364
365
366
365
364
363
363
365
367
367
370
370
369
372
378
375
374
372
372
372
372
370
369
368

Friday 1

Full Moon 100%

21:11

05:21

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
08 Bad
09 Bad
10 Bad
11 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)

99
98
74
93
81
65
79
81
81
86
87
89
90
93
96
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

64
61
61
61
51
40
32
38
47
63
73
78
80
88
93
98
97
95
94
93
91
90
83
77

Medium Clouds (% Sky Obscured)

30
23
12
0
3
5
2
2
2
5
17
18
18
38
55
71
77
77
76
83
91
99
95
91

High Clouds (% Sky Obscured)

99
94
59
73
55
35
45
46
45
49
34
24
10
42
71
96
80
70
60
56
53
45
35
31

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
Very Light Rain
None

Precipitation Probability (%)

2
1
0
0
0
0
0
0
0
0
0
1
1
5
8
9
19
30
34
37
43
44
51
48

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
0.2
0

Wind Speed/Direction (mph)

16
17
17
18
18
17
16
16
13
11
11
10
10
10
10
9
8
8
7
6
6
7
7
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

9
9
9
9
9
9
9
10
10
10
9
9
9
9
9
9
9
9
9
9
9
9
8
9

Relative Humidity (%)

69
68
67
69
70
73
75
81
92
96
93
93
93
93
93
93
93
91
91
90
87
83
77
77

Pressure (mb)

1018
1018
1018
1018
1018
1017
1017
1017
1018
1018
1018
1018
1018
1017
1017
1017
1017
1017
1016
1016
1016
1016
1017
1017

Ozone (du)

367
366
365
363
362
361
360
360
361
361
363
365
365
365
367
368
369
373
378
382
383
384
386
385

Saturday 2

Waning Gibbous 98%

22:27

05:41

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
08 Bad
09 Bad
10 Bad
11 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)

100
99
99
95
91
88
85
84
78
83
78
71
65
61
64
66
70
68
66
75
84
94
91
89

Low Clouds (% Sky Obscured)

70
65
61
56
41
27
12
22
31
43
41
39
43
56
64
63
56
48
42
43
38
35
43
37

Medium Clouds (% Sky Obscured)

87
89
91
95
91
88
83
62
45
33
40
43
41
37
30
23
25
27
31
31
31
28
22
23

High Clouds (% Sky Obscured)

22
22
17
8
7
6
5
3
2
1
1
1
2
1
1
0
1
2
3
2
1
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
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
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

44
41
35
31
27
26
24
25
27
27
23
19
11
14
11
1
2
2
1
8
11
10
14
18

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

76
74
77
80
84
87
88
91
90
91
90
91
90
90
90
90
90
91
93
94
91
87
81
78

Pressure (mb)

1016
1016
1016
1016
1016
1016
1016
1016
1016
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017

Ozone (du)

385
384
383
382
380
379
377
375
374
372
370
371
371
372
374
375
377
378
379
379
382
385
388
389

Sunday 3

Waning Gibbous 95%

23:40

06:10

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

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)

90
85
82
82
59
36
12
10
11
16
33
48
63
74
82
91
73
50
32

Low Clouds (% Sky Obscured)

48
45
52
52
38
22
5
4
3
2
2
2
2
1
1
0
0
0
0

Medium Clouds (% Sky Obscured)

19
21
27
27
16
7
0
2
5
7
12
26
44
48
52
52
39
30
19

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
1
1
18
34
46
26
14
0

ISS Passover

Visibility (miles)

7
5
7
8
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 (%)

22
15
16
18
10
7
2
1
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

8
8
11
11
10
10
10
11
11
10
10
9
8
7
5
4
4
4
4

Dew Point (°C)

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

Relative Humidity (%)

75
71
69
65
62
65
68
72
77
84
90
91
90
90
88
86
86
85
85

Pressure (mb)

1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1016

Ozone (du)

389
390
389
388
387
384
381
378
376
375
373
372
371
370
369
368
366
365
364

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

Generated: 27/04/26 13:50:49. Forecast: 27/04/26 to 03/05/26. Timezone: UTC+1.00