Clear Outside v1.0 - International Weather Forecasts For Astronomers

Saturday 12

Waning Gibbous 95%

22:51

No Set

07 Good
08 Good
09 Good
10 Good
11 Good
12 Good
13 Good
14 Good
15 Good
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 OK
05 Bad
06 Good

Sun - Rise: 05:27, Set: 21:28, Transit: 13:27. Moon - Rise: 22:51, Set: No Set. Civil Dark: 22:11 - 04:45. Nautical Dark: 23:11 - 03:45. Astro Dark: 01:14 - 01:52

Total Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
5
10
43
80
18

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
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
5
10
43
80
18

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
5
8
12
17
17
16
15
15
15
14
12
9
6
5
5
5
6
7
8
9
7
8
9

Chance of Frost

Temperature (°C)

20
21
22
23
23
24
24
25
25
25
24
24
23
22
20
19
18
18
18
18
18
18
18
18

Feels Like (°C)

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

Dew Point (°C)

15
15
15
15
15
15
15
15
14
14
14
14
15
16
15
14
13
13
13
14
14
13
12
12

Relative Humidity (%)

72
69
65
62
59
57
55
53
52
51
53
56
60
67
71
72
71
71
72
73
73
69
66
66

Pressure (mb)

1015
1015
1015
1015
1015
1015
1015
1015
1014
1014
1014
1013
1013
1013
1013
1013
1013
1013
1013
1012
1012
1012
1011
1011

Ozone (du)

318
318
319
319
319
320
322
324
325
326
326
325
326
328
329
330
332
330
327
324
324
325
323
324

Sunday 13

Waning Gibbous 88%

23:09

08:05

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

Sun - Rise: 05:29, Set: 21:28, Transit: 13:28. Moon - Rise: 23:09, Set: 08:05. Civil Dark: 22:10 - 04:46. Nautical Dark: 23:10 - 03:47. Astro Dark: 01:03 - 02:00

Total Clouds (% Sky Obscured)

54
35
16
17
100
100
100
100
100
100
100
100
100
54
10
80
62
46
47
14
2
58
65
61

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
49
17
29
59
48
8
80
28
46
47
14
2
58
47
61

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
29
36
100
100
93
67
35
7
3
0
35
0
0
0
0
8
33
5

High Clouds (% Sky Obscured)

54
35
16
17
100
100
100
100
100
100
100
100
89
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
4
3
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
Light Rain
Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
3
6
29
61
65
50
12
5
4
1
0
0
1
0
0
0
4
2
3
21
32

Precipitation Amount (mm)

0
0
0
0
0
0
0.4
0.5
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

11
13
14
15
15
17
16
14
12
8
8
6
9
9
10
11
12
13
15
15
15
13
12
14

Chance of Frost

Temperature (°C)

19
19
20
21
22
22
22
22
22
20
20
20
19
18
18
17
17
17
17
16
16
16
16
16

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

66
63
59
53
49
49
53
61
67
85
81
81
82
85
89
90
92
93
93
95
90
83
85
87

Pressure (mb)

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

Ozone (du)

324
323
323
322
324
326
326
327
331
334
339
342
357
347
346
345
342
342
341
339
339
340
340
343

Monday 14

Waning Gibbous 80%

23:23

09:26

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
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad

Sun - Rise: 05:30, Set: 21:27, Transit: 13:28. Moon - Rise: 23:23, Set: 09:26. Civil Dark: 22:09 - 04:48. Nautical Dark: 23:08 - 03:49. Astro Dark: 00:55 - 02:07

Total Clouds (% Sky Obscured)

54
50
41
54
48
51
47
55
56
58
41
59
53
46
61
52
45
39
41
44
56
61
60
52

Low Clouds (% Sky Obscured)

54
50
41
54
48
51
47
54
53
58
41
59
53
46
58
52
45
39
41
44
56
51
44
38

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
7
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
3
51
3
55
56
58
0
0
0
0
0
0
0
2
0
2
20
45
55
50

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
6
8
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 (%)

22
23
18
10
6
3
2
8
12
14
15
24
33
43
39
30
13
11
10
12
23
18
25
19

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)

18
19
19
19
20
20
20
20
20
20
20
21
21
20
19
18
18
18
18
18
18
18
17
17

Chance of Frost

Temperature (°C)

17
17
17
17
17
17
17
17
17
17
17
16
16
16
15
15
15
15
15
15
15
15
15
16

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

89
87
85
78
71
67
65
61
63
64
64
66
68
73
78
80
79
79
78
78
78
75
75
74

Pressure (mb)

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

Ozone (du)

343
341
342
344
346
349
352
353
355
356
356
355
353
350
349
345
342
342
340
338
335
334
333
332

Tuesday 15

Waning Gibbous 70%

23:37

10:47

07 Bad
08 Bad
09 OK
10 Bad
11 OK
12 OK
13 OK
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

Sun - Rise: 05:31, Set: 21:26, Transit: 13:28. Moon - Rise: 23:37, Set: 10:47. Civil Dark: 22:08 - 04:49. Nautical Dark: 23:07 - 03:51. Astro Dark: 00:49 - 02:13

Total Clouds (% Sky Obscured)

41
30
20
35
31
15
23
36
52
65
82
98
99
99
100
99
98
97
97
98
98
98
99
100

Low Clouds (% Sky Obscured)

27
16
6
5
4
4
10
23
38
36
35
30
34
37
40
56
72
88
90
93
95
92
89
86

Medium Clouds (% Sky Obscured)

0
0
0
1
29
15
21
15
52
65
76
80
80
71
88
89
91
95
94
92
89
92
95
100

High Clouds (% Sky Obscured)

39
30
20
35
31
2
7
8
13
39
75
66
72
61
63
40
22
12
33
9
14
11
10
27

ISS Passover

Visibility (miles)

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

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
Very Light Rain
None
None
None
None
None
None
None

Precipitation Probability (%)

19
24
9
9
7
9
8
11
23
26
40
40
47
34
29
41
50
43
45
34
34
10
17
18

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

17
18
19
21
21
22
23
23
22
22
20
19
18
17
16
15
15
14
13
12
11
9
9
8

Chance of Frost

Temperature (°C)

16
16
17
17
18
18
18
18
18
18
17
17
17
17
17
17
17
17
17
17
17
17
17
17

Feels Like (°C)

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

Dew Point (°C)

11
12
12
12
12
12
12
12
13
15
15
16
16
16
16
16
16
16
16
17
17
17
17
17

Relative Humidity (%)

74
75
75
72
67
66
65
66
71
83
88
92
95
95
93
93
93
95
95
96
96
96
96
96

Pressure (mb)

1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1017
1017
1017
1017
1017
1017
1017

Ozone (du)

330
328
327
326
325
323
322
317
312
311
305
302
300
299
298
297
297
298
298
300
299
299
300
300

Wednesday 16

Waning Gibbous 59%

23:50

12:07

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 OK
20 OK
21 OK
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad

Sun - Rise: 05:32, Set: 21:25, Transit: 13:28. Moon - Rise: 23:50, Set: 12:07. Civil Dark: 22:07 - 04:50. Nautical Dark: 23:05 - 03:53. Astro Dark: 00:43 - 02:18

Total Clouds (% Sky Obscured)

99
98
98
98
99
99
97
94
91
78
66
53
27
17
15
48
80
98
96
96
96
97
98
100

Low Clouds (% Sky Obscured)

81
73
72
77
82
87
86
74
79
60
40
19
23
17
14
27
40
51
56
58
61
65
72
79

Medium Clouds (% Sky Obscured)

89
82
54
50
46
34
28
39
76
73
59
53
27
17
15
34
38
42
50
57
60
64
70
71

High Clouds (% Sky Obscured)

24
30
51
57
72
78
68
51
32
35
38
49
27
17
15
47
69
92
73
54
35
57
77
100

ISS Passover

Visibility (miles)

8
8
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
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
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 (%)

23
22
9
9
13
4
8
6
4
5
2
0
1
1
0
7
9
10
12
14
16
20
24
27

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)

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

Chance of Frost

Temperature (°C)

17
18
18
18
19
19
19
19
19
19
19
19
19
19
18
18
18
18
18
18
18
18
18
18

Feels Like (°C)

14
15
15
15
15
16
16
16
15
16
16
16
16
16
15
16
16
16
16
15
15
16
16
16

Dew Point (°C)

17
17
17
17
18
18
17
17
17
17
18
17
18
17
17
17
17
17
17
17
17
17
17
17

Relative Humidity (%)

96
96
96
95
93
92
89
88
88
89
92
91
92
90
92
93
93
95
96
96
96
98
96
96

Pressure (mb)

1017
1017
1017
1017
1018
1018
1018
1018
1018
1018
1018
1017
1017
1015
1015
1015
1015
1015
1015
1015
1014
1014
1014
1014

Ozone (du)

300
300
300
299
299
299
300
300
301
301
301
301
302
303
304
305
305
305
305
305
305
305
306
307

Thursday 17

Waning Gibbous 56%

00:05

13:29

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
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad

Sun - Rise: 05:33, Set: 21:24, Transit: 13:28. Moon - Rise: 00:05, Set: 13:29. Civil Dark: 22:05 - 04:52. Nautical Dark: 23:03 - 03:55. Astro Dark: 00:38 - 02:23

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
97
95
94
84
73
64
64
64
64
58
53
49
64
80
91

Low Clouds (% Sky Obscured)

78
78
75
78
84
89
86
84
81
71
60
50
38
27
15
13
10
6
6
6
5
13
20
35

Medium Clouds (% Sky Obscured)

77
81
89
90
90
89
91
92
94
74
48
19
18
20
22
23
24
26
18
10
3
10
18
25

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
97
95
94
64
38
14
21
28
36
25
23
20
23
26
42

ISS Passover

Visibility (miles)

9
9
9
9
8
6
5
6
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
0
0
0
0
0

Precipitation Type

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

Precipitation Probability (%)

28
28
24
33
43
53
53
51
45
32
26
22
20
14
0
1
1
0
0
0
0
3
6
11

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

18
18
18
18
18
17
17
17
18
18
17
17
17
17
16
16
16
16
15
15
15
15
15
15

Feels Like (°C)

16
16
16
17
17
17
17
16
15
15
15
16
16
15
15
14
14
14
13
12
12
12
12
12

Dew Point (°C)

17
17
16
16
16
15
15
14
14
14
13
13
13
12
12
12
11
11
11
11
12
12
12
11

Relative Humidity (%)

95
92
90
88
88
86
85
82
79
77
76
76
76
75
77
77
75
74
74
75
78
79
78
77

Pressure (mb)

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

Ozone (du)

308
310
312
314
316
318
320
323
325
328
327
327
326
327
327
328
330
331
332
332
331
331
331
331

Friday 18

Third Quarter 47%

00:24

14:55

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

Sun - Rise: 05:34, Set: 21:23, Transit: 13:28. Moon - Rise: 00:24, Set: 14:55. Civil Dark: 22:04 - 04:53. Nautical Dark: 23:01 - 03:56. Astro Dark: 00:33 - 02:28

Total Clouds (% Sky Obscured)

94
95
97
99
99
100
100
100
100
100
100
100
100
100
100
99
98
98

Low Clouds (% Sky Obscured)

46
53
58
65
67
71
75
81
88
78
70
64
67
74
80
82
82
81

Medium Clouds (% Sky Obscured)

34
40
52
60
63
70
72
79
79
67
52
36
44
57
73
65
51
37

High Clouds (% Sky Obscured)

62
64
65
67
65
71
76
87
100
93
86
69
47
43
49
59
72
80

ISS Passover

Visibility (miles)

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

Fog (%)

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

Precipitation Probability (%)

9
7
2
10
16
23
25
26
26
26
25
24
26
25
18
18
24
35

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

15
16
16
17
17
17
17
17
17
17
17
17
17
16
15
15
15
15

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

74
73
69
67
67
68
68
73
79
85
86
88
89
87
87
86
87
89

Pressure (mb)

1016
1016
1016
1017
1017
1017
1017
1017
1016
1016
1016
1016
1015
1015
1015
1015
1015
1015

Ozone (du)

331
331
332
333
334
335
335
339
343
346
346
346
346
345
344
344
342
340

Forecast for Penzance, Cornwall, United Kingdom (50.12,-5.54)

Generated: 12/07/25 07:52:55. Forecast: 12/07/25 to 18/07/25. Timezone: UTC+1.00