Clear Outside v1.0 - International Weather Forecasts For Astronomers

Wednesday 29

Waxing Gibbous 97%

19:47

04:54

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

Sun - Rise: 05:44, Set: 20:38, Transit: 13:11. Moon - Rise: 19:47, Set: 04:54. Civil Dark: 21:15 - 05:05. Nautical Dark: 22:06 - 04:14. Astro Dark: 23:09 - 03:09

Total Clouds (% Sky Obscured)

34
53
63
100
100
100
100
38
20
10
5
2
2
0
0
0
0
0
5
52
39
100
100
40

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)

1
1
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)

34
53
63
100
100
100
100
38
20
10
5
2
2
0
0
0
0
0
5
52
39
100
100
40

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)

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

Chance of Frost

Temperature (°C)

9
8
8
8
7
7
7
7
6
6
7
8
10
12
14
15
17
18
18
19
18
18
17
16

Feels Like (°C)

3
2
1
1
2
1
1
1
1
1
3
3
5
7
9
10
12
13
14
15
14
13
13
11

Dew Point (°C)

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

Relative Humidity (%)

70
73
73
73
74
76
78
82
83
83
81
78
73
70
65
61
60
58
59
62
65
67
72
77

Pressure (mb)

1023
1024
1024
1024
1023
1023
1023
1023
1023
1022
1022
1022
1022
1022
1022
1021
1020
1020
1020
1019
1019
1019
1019
1019

Ozone (du)

382
379
380
378
377
377
376
376
376
378
380
384
385
384
384
383
383
381
380
377
376
374
373
372

Thursday 30

Waxing Gibbous 99%

21:03

05:07

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

Sun - Rise: 05:42, Set: 20:40, Transit: 13:11. Moon - Rise: 21:03, Set: 05:07. Civil Dark: 21:17 - 05:03. Nautical Dark: 22:08 - 04:11. Astro Dark: 23:12 - 03:06

Total Clouds (% Sky Obscured)

58
63
53
68
38
29
47
55
76
61
58
41
91
85
87
100
95
95
100
99
98
97
94
100

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
29
36
58
64
81
78
83
94
67
50
38

Medium Clouds (% Sky Obscured)

0
0
0
16
17
8
18
21
41
33
35
27
42
57
62
95
89
78
67
76
44
60
80
59

High Clouds (% Sky Obscured)

58
57
29
62
38
29
45
32
33
3
0
0
70
81
72
67
2
9
82
81
73
60
67
100

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
5
14
7
13

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
Light Rain
Light Rain
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
2
3
5
7
19
44
45
39
49
95
95
37
28
9
3

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1.1
0.8
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

10
9
9
9
7
6
5
5
4
4
7
10
12
14
14
13
13
13
13
13
13
12
12
10

Dew Point (°C)

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

Relative Humidity (%)

82
86
90
91
91
91
90
90
90
91
87
78
75
73
72
71
86
80
86
87
86
83
84
86

Pressure (mb)

1020
1021
1021
1021
1021
1021
1020
1020
1020
1020
1020
1020
1020
1020
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019

Ozone (du)

371
371
372
373
374
374
374
373
371
369
370
370
367
366
365
364
363
362
361
362
364
368
369
367

Friday 1

Full Moon 100%

21:03

05:23

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
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad

Sun - Rise: 05:40, Set: 20:42, Transit: 13:11. Moon - Rise: 21:03, Set: 05:23. Civil Dark: 21:19 - 05:00. Nautical Dark: 22:10 - 04:09. Astro Dark: 23:16 - 03:02

Total Clouds (% Sky Obscured)

100
96
92
100
100
100
100
96
83
82
80
87
85
87
93
95
100
100
100
100
100
100
100
78

Low Clouds (% Sky Obscured)

26
45
51
49
65
57
60
55
51
49
54
53
60
61
63
54
54
47
36
26
68
50
53
62

Medium Clouds (% Sky Obscured)

48
70
0
0
69
97
88
82
54
41
30
33
38
45
68
66
78
76
79
90
100
99
98
58

High Clouds (% Sky Obscured)

100
75
84
100
100
99
100
50
55
60
40
60
60
54
64
30
100
100
100
100
100
100
100
78

ISS Passover

Visibility (miles)

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

Fog (%)

27
49
60
56
2
27
14
55
87
100
100
2
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
Very Light Rain
Very Light Rain
None
None
Very Light Rain

Precipitation Probability (%)

1
0
0
0
0
0
0
0
0
0
0
0
0
3
2
3
9
34
50
49
49
27
36
49

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.2
0
0
0.2

Wind Speed/Direction (mph)

5
4
4
4
4
4
4
4
5
5
4
6
7
9
10
10
10
11
9
9
6
5
4
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

90
88
88
88
91
93
95
93
96
96
95
88
81
76
72
68
65
64
67
79
89
93
90
93

Pressure (mb)

1019
1019
1019
1019
1019
1019
1018
1018
1018
1017
1017
1017
1017
1017
1016
1016
1015
1015
1014
1014
1014
1014
1013
1013

Ozone (du)

367
367
367
368
367
368
368
368
371
374
377
378
380
381
383
384
385
384
383
382
382
384
386
386

Saturday 2

Waning Gibbous 98%

22:18

05:44

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
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad

Sun - Rise: 05:38, Set: 20:43, Transit: 13:11. Moon - Rise: 22:18, Set: 05:44. Civil Dark: 21:21 - 04:58. Nautical Dark: 22:13 - 04:06. Astro Dark: 23:20 - 02:58

Total Clouds (% Sky Obscured)

100
100
88
99
100
100
100
100
49
20
17
18
66
84
100
100
100
100
100
100
87
87
82
74

Low Clouds (% Sky Obscured)

73
78
83
87
92
91
88
89
49
20
17
18
66
84
100
100
100
100
100
100
87
87
82
74

Medium Clouds (% Sky Obscured)

100
99
78
46
53
47
40
50
49
20
17
18
41
44
48
47
51
55
56
60
61
73
80
66

High Clouds (% Sky Obscured)

83
84
79
99
100
87
83
97
49
20
17
18
2
2
0
1
0
0
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
8
9
7
7
8
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

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

Precipitation Probability (%)

59
72
89
95
95
95
95
95
95
95
95
95
95
95
86
46
47
45
34
40
43
43
38
32

Precipitation Amount (mm)

0.3
0.4
0.7
0.8
1
1.1
1
1.7
1.9
1.6
1.6
1.1
0.7
0.8
0.5
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

95
98
96
96
96
93
88
85
87
90
90
85
80
76
70
66
68
73
76
79
80
79
83
88

Pressure (mb)

1013
1013
1013
1012
1012
1011
1011
1010
1010
1009
1009
1009
1009
1009
1009
1009
1009
1009
1009
1009
1009
1009
1009
1010

Ozone (du)

386
386
386
385
383
382
381
379
378
378
378
378
377
378
378
378
378
378
379
378
377
377
377
377

Sunday 3

Waning Gibbous 95%

23:30

06:15

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
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad

Sun - Rise: 05:36, Set: 20:45, Transit: 13:11. Moon - Rise: 23:30, Set: 06:15. Civil Dark: 21:23 - 04:56. Nautical Dark: 22:15 - 04:03. Astro Dark: 23:24 - 02:53

Total Clouds (% Sky Obscured)

59
64
66
60
54
62
47
42
44
53
55
58
59
78
94
97
98
99
100
96
93
96
90
78

Low Clouds (% Sky Obscured)

59
64
66
60
54
62
47
42
44
53
55
58
59
78
94
94
96
98
100
81
64
47
49
56

Medium Clouds (% Sky Obscured)

33
24
24
18
21
19
17
27
30
34
41
38
39
40
41
42
41
33
26
25
21
15
12
5

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
4
10
16
12
6
1
0
1
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
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

23
29
34
37
29
22
15
30
33
21
29
29
26
26
17
14
24
24
15
16
17
20
18
17

Precipitation Amount (mm)

0
0
0
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
5
5
5
4
4
3

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

91
95
95
95
94
94
94
94
94
93
93
87
82
76
68
65
61
67
72
77
79
81
83
85

Pressure (mb)

1011
1011
1011
1012
1012
1012
1012
1012
1012
1013
1013
1013
1014
1014
1014
1013
1013
1013
1013
1013
1013
1013
1013
1013

Ozone (du)

377
378
378
380
382
378
376
374
373
373
374
376
380
385
388
392
393
391
388
385
382
380
377
377

Monday 4

Waning Gibbous 90%

00:33

06:57

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
16 Bad
17 OK
18 Good
19 OK
20 OK

Sun - Rise: 05:34, Set: 20:47, Transit: 13:10. Moon - Rise: 00:33, Set: 06:57. Civil Dark: 21:25 - 04:54. Nautical Dark: 22:18 - 04:01. Astro Dark: 23:28 - 02:49

Total Clouds (% Sky Obscured)

68
62
54
45
62
82
100
100
99
99
82
69
61
68
66
71
74
74
75
52
28
4
16
33

Low Clouds (% Sky Obscured)

64
61
54
45
54
55
55
53
50
48
45
43
40
47
55
62
62
62
61
41
20
0
11
23

Medium Clouds (% Sky Obscured)

0
0
0
0
1
3
3
9
9
17
29
28
30
39
39
36
35
34
31
22
11
0
5
13

High Clouds (% Sky Obscured)

0
1
2
3
35
68
100
70
40
10
7
8
2
1
1
0
1
1
2
4
11
4
16
24

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 (%)

15
13
11
8
7
4
1
2
1
1
8
12
14
20
22
19
17
13
7
10
9
6
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)

2
2
2
1
2
2
2
2
2
2
2
4
5
7
8
10
11
12
12
13
12
11
11
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

88
91
91
90
90
90
90
86
88
86
86
82
80
76
70
64
59
60
59
59
65
69
75
74

Pressure (mb)

1013
1014
1014
1013
1013
1013
1013
1013
1012
1012
1012
1012
1011
1011
1011
1011
1011
1011
1010
1010
1010
1011
1011
1011

Ozone (du)

377
377
377
377
377
377
378
379
380
381
382
383
383
384
383
382
381
381
380
380
381
381
382
385

Tuesday 5

Waning Gibbous 83%

01:24

07:52

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

Sun - Rise: 05:32, Set: 20:48, Transit: 13:10. Moon - Rise: 01:24, Set: 07:52. Civil Dark: 21:27 - 04:52. Nautical Dark: 22:20 - 03:58. Astro Dark: 23:32 - 02:45

Total Clouds (% Sky Obscured)

44
38
31
24
30
38
51
51
50
47
46
46
44
53
63
72
67
61
55
49
43
38

Low Clouds (% Sky Obscured)

34
28
23
17
30
38
43
37
31
30
27
32
33
37
33
24
16
8
0
12
24
36

Medium Clouds (% Sky Obscured)

17
13
7
0
0
0
0
0
0
0
0
0
0
9
18
29
36
42
45
32
20
10

High Clouds (% Sky Obscured)

25
16
11
5
1
1
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
7
4
1
4
6
8
8
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
Very Light Rain
None
None
None

Precipitation Probability (%)

1
4
4
1
3
3
1
2
2
0
2
2
0
12
19
26
34
40
44
34
27
19

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

2
0
-1
-1
-1
-0
-1
-1
-1
-2
-2
-2
-3
-3
-1
1
2
2
2
2
1
1

Relative Humidity (%)

71
71
73
77
80
83
83
86
80
76
70
64
57
50
55
60
63
62
60
59
59
60

Pressure (mb)

1012
1012
1012
1012
1012
1012
1012
1012
1013
1013
1013
1013
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014

Ozone (du)

388
391
393
395
397
394
390
386
389
392
395
395
396
397
399
401
403
404
405
406
406
407

Forecast for Rhayader, Powys, United Kingdom (52.27,-3.57)

Generated: 29/04/26 21:23:01. Forecast: 29/04/26 to 05/05/26. Timezone: UTC+1.00