Clear Outside v1.0 - International Weather Forecasts For Astronomers

Saturday 25

Waxing Gibbous 88%

19:10

01:34

02 OK
03 OK
04 Bad
05 Bad
06 Bad
07 OK
08 OK
09 Bad
10 OK
11 OK
12 OK
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

Sun - Rise: 05:25, Set: 21:16, Transit: 13:20. Moon - Rise: 19:10, Set: 01:34. Civil Dark: 21:59 - 04:42. Nautical Dark: 23:00 - 03:41. Astro Dark: 00:53 - 01:58

Total Clouds (% Sky Obscured)

15
30
47
63
85
42
43
54
27
42
42
57
86
87
93
75
79
87
92
80
90
95
87
84

Low Clouds (% Sky Obscured)

15
28
28
22
4
0
32
36
16
1
22
12
13
54
70
61
74
69
72
76
84
92
85
84

Medium Clouds (% Sky Obscured)

0
0
37
63
82
27
21
33
23
34
27
27
41
53
85
48
6
16
20
10
8
9
2
0

High Clouds (% Sky Obscured)

15
30
47
63
20
3
0
2
1
8
4
24
55
40
17
9
4
14
24
5
2
30
23
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
6
5

Fog (%)

0
0
0
0
0
9
1
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
0
0
0
0
0
0
0
0
1
1
2
2
1
2
1
0
1
3
5
3
9
29

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)

4
3
3
2
3
3
5
10
14
16
17
18
19
19
18
17
17
16
13
10
7
9
8
8

Chance of Frost

Temperature (°C)

8
8
9
10
11
12
15
17
19
20
21
21
21
20
19
18
17
17
16
16
16
16
16
16

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

91
90
90
90
90
84
77
67
53
39
41
41
45
52
53
50
57
68
74
82
86
81
87
93

Pressure (mb)

1015
1014
1014
1013
1013
1012
1012
1012
1011
1011
1010
1010
1010
1010
1009
1009
1009
1009
1008
1009
1008
1008
1008
1007

Ozone (du)

323
321
320
322
323
330
324
321
320
318
319
317
318
318
317
317
319
319
319
319
319
320
319
317

Sunday 26

Waxing Gibbous 93%

20:00

No Set

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 Good
23 OK
00 OK
01 OK

Sun - Rise: 05:26, Set: 21:14, Transit: 13:20. Moon - Rise: 20:00, Set: No Set. Civil Dark: 21:57 - 04:43. Nautical Dark: 22:57 - 03:43. Astro Dark: 00:43 - N/A

Total Clouds (% Sky Obscured)

98
97
100
91
89
95
99
83
58
59
59
70
62
73
46
48
45
77
62
47
0
22
31
41

Low Clouds (% Sky Obscured)

95
94
100
84
88
90
97
82
58
59
59
57
46
55
46
48
45
77
59
45
0
22
27
36

Medium Clouds (% Sky Obscured)

17
16
23
12
0
22
6
0
0
0
0
0
0
0
0
3
0
20
16
2
0
0
0
0

High Clouds (% Sky Obscured)

6
55
55
56
50
36
14
0
0
0
3
3
4
7
0
0
3
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

4
0
0
0
0
6
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

0
0
3
2
12
26
1
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 (%)

16
11
32
20
34
25
26
28
15
21
20
19
11
8
17
3
1
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)

10
12
13
14
14
15
15
15
17
18
19
20
19
19
19
19
18
17
15
14
13
11
10
9

Chance of Frost

Temperature (°C)

16
16
16
16
16
16
16
16
17
18
18
18
18
18
18
19
18
17
16
16
15
14
14
13

Feels Like (°C)

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

Dew Point (°C)

15
15
16
16
16
15
15
15
13
12
11
11
13
13
13
11
10
10
10
11
10
10
11
10

Relative Humidity (%)

95
96
96
96
96
93
92
90
79
67
64
63
72
71
70
60
60
62
68
73
73
79
84
80

Pressure (mb)

1007
1007
1006
1006
1006
1006
1007
1007
1008
1008
1009
1009
1010
1010
1011
1011
1011
1012
1013
1014
1014
1015
1016
1016

Ozone (du)

318
319
319
321
323
324
325
325
326
325
326
327
327
327
327
327
328
329
330
328
327
326
326
327

Monday 27

Waxing Gibbous 97%

20:38

02:31

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

Sun - Rise: 05:28, Set: 21:13, Transit: 13:20. Moon - Rise: 20:38, Set: 02:31. Civil Dark: 21:55 - 04:45. Nautical Dark: 22:55 - 03:46. Astro Dark: 00:34 - 02:06

Total Clouds (% Sky Obscured)

35
41
61
74
58
52
70
74
65
47
38
23
30
8
29
45
31
15
10
22
71
88
86
90

Low Clouds (% Sky Obscured)

28
31
43
56
46
39
52
58
52
45
31
22
30
8
15
14
5
6
0
17
52
40
25
34

Medium Clouds (% Sky Obscured)

0
0
0
0
0
1
3
5
3
36
26
0
1
3
10
18
16
15
7
15
64
83
83
84

High Clouds (% Sky Obscured)

0
0
2
2
2
2
2
1
3
3
5
1
5
1
4
4
4
15
10
22
39
28
41
36

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
1
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)

9
7
5
5
4
6
10
11
11
12
12
13
14
14
14
13
13
12
11
7
6
5
5
4

Chance of Frost

Temperature (°C)

13
12
12
11
12
13
14
16
18
19
20
21
22
21
21
21
21
21
19
17
16
16
15
15

Feels Like (°C)

11
12
12
11
12
13
12
14
16
16
16
17
20
18
18
19
19
19
18
17
17
16
15
15

Dew Point (°C)

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

Relative Humidity (%)

84
92
93
95
95
89
73
60
53
46
49
52
56
65
66
66
68
70
73
88
90
89
93
95

Pressure (mb)

1016
1017
1017
1018
1018
1019
1019
1019
1020
1020
1020
1020
1019
1020
1020
1020
1020
1020
1020
1020
1021
1021
1020
1020

Ozone (du)

327
327
326
326
326
327
328
327
326
327
326
326
326
326
326
326
324
323
321
320
321
321
322
320

Tuesday 28

Waxing Gibbous 100%

21:05

03:38

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 OK
23 OK
00 OK
01 Bad

Sun - Rise: 05:29, Set: 21:11, Transit: 13:20. Moon - Rise: 21:05, Set: 03:38. Civil Dark: 21:54 - 04:47. Nautical Dark: 22:52 - 03:48. Astro Dark: 00:27 - 02:13

Total Clouds (% Sky Obscured)

95
98
94
93
88
82
89
96
98
99
100
87
75
66
71
73
69
53
40
25
29
31
33
51

Low Clouds (% Sky Obscured)

40
48
49
50
51
45
40
38
37
35
33
27
19
12
9
4
0
0
0
0
0
0
0
6

Medium Clouds (% Sky Obscured)

84
76
69
74
64
51
63
59
43
51
78
79
75
66
71
56
31
23
12
6
5
3
0
0

High Clouds (% Sky Obscured)

59
72
41
20
2
3
4
58
77
89
100
87
75
66
65
21
1
0
1
2
10
19
32
48

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
6
4
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
Light Rain
Very Light Rain
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
1
1
2
21
31
34
54
84
43
6
0
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.9
0.2
0
0
0
0

Wind Speed/Direction (mph)

4
4
5
6
6
6
7
8
9
10
11
11
10
9
10
10
10
10
7
5
3
2
2
2

Chance of Frost

Temperature (°C)

15
15
15
15
15
15
17
19
20
22
23
24
25
25
26
25
24
23
20
18
17
16
15
14

Feels Like (°C)

15
15
15
15
15
17
18
19
19
20
21
22
22
23
23
22
23
24
22
21
19
19
18
17

Dew Point (°C)

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

Relative Humidity (%)

95
95
96
98
96
93
81
63
51
46
44
41
38
36
35
40
44
57
76
90
87
86
86
86

Pressure (mb)

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

Ozone (du)

320
321
320
319
318
318
317
317
318
318
319
320
322
324
327
327
329
329
329
331
333
334
331
329

Wednesday 29

Full Moon 100%

21:24

04:53

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
00 Bad
01 Bad

Sun - Rise: 05:31, Set: 21:10, Transit: 13:20. Moon - Rise: 21:24, Set: 04:53. Civil Dark: 21:52 - 04:49. Nautical Dark: 22:50 - 03:51. Astro Dark: 00:21 - 02:20

Total Clouds (% Sky Obscured)

82
100
88
70
59
71
76
90
87
89
90
86
82
76
76
75
71
100
100
100
93
85
79
85

Low Clouds (% Sky Obscured)

11
17
23
33
40
41
45
40
45
51
59
65
61
53
59
62
65
7
4
0
17
34
52
55

Medium Clouds (% Sky Obscured)

0
0
0
0
2
4
12
14
11
5
2
7
11
15
10
4
0
7
3
0
2
4
6
9

High Clouds (% Sky Obscured)

82
100
78
45
29
48
50
75
68
71
75
68
61
50
51
47
52
100
100
100
84
70
59
66

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)

2
2
2
2
2
2
2
4
6
7
8
9
9
11
13
12
12
9
6
5
4
4
3
3

Chance of Frost

Temperature (°C)

14
14
14
14
14
15
16
18
21
23
24
25
26
26
26
24
23
22
20
18
15
14
13
12

Feels Like (°C)

16
14
14
14
15
17
18
20
21
22
22
23
23
23
22
21
20
20
20
20
19
17
16
14

Dew Point (°C)

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

Relative Humidity (%)

84
84
86
86
86
86
82
73
57
42
35
31
29
28
38
48
51
53
62
74
87
89
89
90

Pressure (mb)

1015
1015
1015
1015
1015
1015
1015
1015
1015
1014
1014
1014
1014
1013
1013
1014
1014
1014
1015
1016
1016
1016
1016
1016

Ozone (du)

328
329
330
330
329
328
328
327
326
325
324
323
322
323
323
324
324
324
324
324
324
324
325
325

Thursday 30

Waning Gibbous 99%

21:39

06:09

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
00 Bad
01 Bad

Sun - Rise: 05:32, Set: 21:08, Transit: 13:20. Moon - Rise: 21:39, Set: 06:09. Civil Dark: 21:50 - 04:51. Nautical Dark: 22:47 - 03:53. Astro Dark: 00:15 - 02:25

Total Clouds (% Sky Obscured)

92
97
93
88
84
89
93
97
97
98
99
99
100
100
99
97
96
90
88
83
84
84
85
93

Low Clouds (% Sky Obscured)

58
61
60
56
46
29
14
0
14
31
49
47
42
38
33
28
21
20
23
25
26
31
38
44

Medium Clouds (% Sky Obscured)

9
11
12
11
12
24
38
52
45
41
38
40
41
39
43
43
42
40
30
29
25
25
26
44

High Clouds (% Sky Obscured)

80
97
83
68
51
60
70
82
90
92
93
95
97
100
94
88
83
62
44
27
40
51
67
77

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)

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

Chance of Frost

Temperature (°C)

12
12
12
13
13
13
16
18
21
22
24
25
25
24
24
24
23
22
20
18
17
16
15
14

Feels Like (°C)

11
12
12
11
11
10
15
16
17
18
19
19
24
23
22
22
23
23
20
20
20
19
19
17

Dew Point (°C)

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

Relative Humidity (%)

90
92
90
90
90
90
79
69
61
52
46
40
39
39
39
40
42
44
52
63
75
80
85
89

Pressure (mb)

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

Ozone (du)

324
323
322
322
322
322
322
321
321
320
320
320
322
324
326
323
319
316
315
314
313
312
311
310

Friday 31

Waning Gibbous 98%

21:51

07:27

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 Bad
21 Bad
22 Bad
23 Bad
00 Bad

Sun - Rise: 05:34, Set: 21:06, Transit: 13:20. Moon - Rise: 21:51, Set: 07:27. Civil Dark: 21:48 - 04:52. Nautical Dark: 22:45 - 03:56. Astro Dark: 00:09 - 02:31

Total Clouds (% Sky Obscured)

96
99
96
93
90
88
94
98
99
100
100
94
87
81
55
33
9
42
72
98
91
83
77

Low Clouds (% Sky Obscured)

50
52
44
34
25
31
36
44
44
42
39
35
32
28
19
9
0
0
0
0
13
27
40

Medium Clouds (% Sky Obscured)

63
81
72
63
47
57
67
76
82
86
86
82
78
75
55
33
9
38
22
4
22
41
59

High Clouds (% Sky Obscured)

88
96
82
57
39
50
63
78
86
93
99
83
71
47
41
33
9
42
69
92
84
77
70

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

Precipitation Probability (%)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

14
14
14
14
15
15
17
18
20
21
22
24
24
25
26
25
24
23
21
19
17
16
15

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

86
82
79
75
73
69
60
52
45
43
42
41
37
35
32
31
30
30
36
44
54
58
63

Pressure (mb)

1016
1015
1015
1015
1015
1015
1015
1015
1015
1014
1014
1014
1014
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013

Ozone (du)

313
315
318
316
314
312
312
312
311
310
309
307
309
312
314
314
314
314
315
316
316
318
320

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

Generated: 25/07/26 02:57:40. Forecast: 25/07/26 to 31/07/26. Timezone: UTC+1.00