Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 28

Full Moon 99%

20:03

07:37

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

Sun - Rise: 06:12, Set: 20:03, Transit: 13:07. Moon - Rise: 20:03, Set: 07:37. Civil Dark: 20:40 - 05:35. Nautical Dark: 21:25 - 04:50. Astro Dark: 22:17 - 03:58

Total Clouds (% Sky Obscured)

84
88
90
98
100
100
93
68
62
33
25
25
21
24
29
45
56
70
72
84
96
100
99
99

Low Clouds (% Sky Obscured)

60
68
62
55
69
94
34
23
47
21
18
20
17
18
25
36
44
50
54
64
71
63
85
56

Medium Clouds (% Sky Obscured)

84
88
90
96
100
100
86
63
53
3
0
0
0
3
0
13
3
2
0
0
91
88
99
99

High Clouds (% Sky Obscured)

84
88
90
57
30
33
15
6
2
2
0
0
0
0
0
2
13
26
33
55
39
100
84
80

ISS Passover

Visibility (miles)

9
9
9
9
8
3
9
5
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
Light Rain
Very Light Rain
Light Rain
Very Light Rain
Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
Very Light Rain

Precipitation Probability (%)

5
32
73
78
95
68
78
38
16
1
0
0
0
0
0
0
0
0
0
0
0
2
26
64

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

15
16
16
14
14
13
11
13
11
9
8
7
8
8
7
7
6
6
6
6
6
7
7
10

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

78
76
73
70
73
90
92
86
87
90
95
96
96
96
96
96
96
98
96
98
96
90
87
85

Pressure (mb)

1004
1004
1004
1004
1004
1004
1004
1004
1004
1004
1005
1005
1005
1005
1005
1005
1005
1005
1005
1005
1005
1005
1005
1005

Ozone (du)

342
342
341
339
336
335
335
333
332
328
326
328
327
323
320
317
316
314
311
309
306
304
304
303

Saturday 29

Waning Gibbous 96%

20:13

08:57

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
07 Bad
08 Bad
09 Bad
10 Bad

Sun - Rise: 06:13, Set: 20:01, Transit: 13:06. Moon - Rise: 20:13, Set: 08:57. Civil Dark: 20:37 - 05:37. Nautical Dark: 21:23 - 04:52. Astro Dark: 22:14 - 04:01

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
99
98
100
98
100
100
92
88
79
54
61
58
59
65
75
84

Low Clouds (% Sky Obscured)

76
75
94
98
93
93
88
82
80
80
85
97
95
100
84
45
68
54
61
58
59
65
75
72

Medium Clouds (% Sky Obscured)

100
100
100
95
100
100
82
68
35
47
41
92
100
95
57
22
10
3
0
0
0
0
0
6

High Clouds (% Sky Obscured)

100
66
61
99
100
99
84
85
37
50
40
34
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

7
9
9
5
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
1
2
2
1
0
0
0
0
0
0

Precipitation Type

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

Precipitation Probability (%)

76
86
95
95
65
68
51
37
20
13
20
62
42
13
7
3
3
2
0
0
0
0
0
1

Precipitation Amount (mm)

0.4
0.2
1.1
1.4
0
0.3
0
0
0
0
0
0.5
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

81
86
90
93
95
93
90
95
95
92
92
89
90
92
92
90
93
93
93
95
93
89
86
78

Pressure (mb)

1004
1004
1004
1003
1003
1002
1001
1001
1001
1002
1002
1003
1003
1004
1004
1005
1005
1006
1006
1007
1007
1008
1008
1008

Ozone (du)

306
308
309
313
311
311
312
312
313
314
312
311
312
313
317
319
321
321
321
321
321
322
321
320

Sunday 30

Waning Gibbous 91%

20:23

10:19

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
07 Bad
08 Bad
09 Bad
10 Bad

Sun - Rise: 06:15, Set: 19:59, Transit: 13:06. Moon - Rise: 20:23, Set: 10:19. Civil Dark: 20:35 - 05:39. Nautical Dark: 21:20 - 04:54. Astro Dark: 22:11 - 04:04

Total Clouds (% Sky Obscured)

78
88
80
100
97
100
100
100
100
100
100
100
94
94
100
83
91
49
50
50
46
46
66
75

Low Clouds (% Sky Obscured)

60
81
55
59
50
77
68
34
66
58
37
51
73
76
58
27
30
27
36
26
27
29
62
75

Medium Clouds (% Sky Obscured)

11
9
11
9
7
19
19
20
94
100
57
30
10
16
31
9
12
1
0
10
8
7
5
6

High Clouds (% Sky Obscured)

3
35
35
99
85
100
100
100
100
100
100
100
72
60
100
61
89
7
2
0
2
2
2
0

ISS Passover

Visibility (miles)

9
9
9
3
4
6
5
5
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
Light Rain
Light Rain
Light Rain
Moderate Rain
Light Rain
Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

15
22
40
51
50
93
95
95
95
95
90
35
18
5
28
20
1
1
0
0
2
2
1
9

Precipitation Amount (mm)

0
0
0
0
0
0.5
1.8
2.1
3.7
0.8
1
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

70
65
62
63
68
66
76
74
82
92
93
92
95
95
93
90
93
95
96
96
95
89
82
82

Pressure (mb)

1008
1007
1007
1007
1006
1005
1005
1005
1004
1004
1004
1004
1004
1003
1003
1003
1003
1003
1003
1003
1004
1005
1006
1007

Ozone (du)

320
320
320
321
320
321
324
327
328
328
327
326
331
331
333
335
335
336
337
335
334
336
335
334

Monday 31

Waning Gibbous 83%

20:35

No Set

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
07 Bad
08 Bad
09 Bad
10 Bad

Sun - Rise: 06:17, Set: 19:56, Transit: 13:06. Moon - Rise: 20:35, Set: No Set. Civil Dark: 20:32 - 05:41. Nautical Dark: 21:17 - 04:56. Astro Dark: 22:07 - 04:06

Total Clouds (% Sky Obscured)

71
60
72
44
67
68
63
99
83
62
66
70
96
96
96
95
93
88
83
76
81
85
90
93

Low Clouds (% Sky Obscured)

71
58
72
34
58
46
24
11
21
5
0
4
7
9
10
11
13
13
14
15
21
28
32
31

Medium Clouds (% Sky Obscured)

7
8
6
2
0
5
13
24
28
28
33
40
48
47
40
37
84
78
71
66
65
65
60
69

High Clouds (% Sky Obscured)

0
0
2
7
23
9
8
72
7
4
8
12
55
60
67
73
75
78
66
64
73
80
75
71

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 (%)

9
21
27
16
15
15
15
2
1
0
0
8
8
3
8
6
2
1
1
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)

18
20
21
21
21
21
19
17
15
13
11
9
8
8
8
7
7
7
6
6
5
7
9
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

83
77
72
72
64
64
65
68
73
70
75
84
90
87
83
84
87
90
92
93
92
84
76
67

Pressure (mb)

1007
1008
1009
1010
1010
1011
1012
1013
1013
1014
1015
1016
1016
1016
1016
1016
1016
1016
1017
1017
1017
1017
1018
1018

Ozone (du)

332
330
325
323
320
318
317
316
316
316
315
313
313
313
314
316
316
315
315
315
316
317
318
318

Tuesday 1

Waning Gibbous 74%

20:49

11:44

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
07 Bad
08 Bad
09 Bad
10 Bad

Sun - Rise: 06:18, Set: 19:54, Transit: 13:05. Moon - Rise: 20:49, Set: 11:44. Civil Dark: 20:30 - 05:42. Nautical Dark: 21:14 - 04:58. Astro Dark: 22:04 - 04:09

Total Clouds (% Sky Obscured)

96
82
76
94
95
94
93
71
77
100
100
93
100
67
68
64
53
72
86
100
87
74
60
62

Low Clouds (% Sky Obscured)

30
42
48
68
66
56
49
3
7
11
17
22
26
30
30
29
28
12
4
0
0
3
9
17

Medium Clouds (% Sky Obscured)

77
53
20
13
12
17
19
24
29
100
48
84
100
46
38
29
20
16
12
13
10
6
5
4

High Clouds (% Sky Obscured)

47
31
32
45
88
39
41
48
63
100
100
57
100
60
68
64
53
64
41
25
26
15
16
16

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

Precipitation Probability (%)

0
1
3
1
0
3
1
0
0
3
4
14
21
24
72
82
95
95
95
95
95
74
22
23

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.4
0.9
1.3
1.1
1.2
1
0.5
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

62
60
55
49
49
53
49
53
59
65
69
74
83
85
92
92
92
90
90
90
90
76
66
56

Pressure (mb)

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

Ozone (du)

320
323
323
323
324
324
324
323
324
325
328
330
332
334
330
328
326
325
325
325
325
325
325
324

Wednesday 2

Waning Gibbous 63%

21:10

13:13

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
07 Bad
08 Bad
09 Bad
10 Bad

Sun - Rise: 06:20, Set: 19:52, Transit: 13:05. Moon - Rise: 21:10, Set: 13:13. Civil Dark: 20:27 - 05:44. Nautical Dark: 21:12 - 05:00. Astro Dark: 22:01 - 04:11

Total Clouds (% Sky Obscured)

62
65
67
68
72
64
55
51
59
67
66
73
81
93
95
97
100
93
85
78
79
80
80
86

Low Clouds (% Sky Obscured)

19
17
24
29
36
48
55
51
59
67
66
73
81
93
95
97
95
83
69
56
62
68
80
80

Medium Clouds (% Sky Obscured)

3
2
13
23
34
52
55
51
59
67
61
64
65
69
57
49
39
34
28
24
35
48
61
65

High Clouds (% Sky Obscured)

15
18
12
11
10
5
5
10
10
10
35
35
25
20
20
25
35
40
50
60
65
65
50
42

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 (%)

16
0
3
6
5
19
25
24
23
19
17
19
17
5
17
24
36
49
52
45
43
39
18
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

54
53
50
53
54
56
64
73
83
85
86
86
89
90
93
92
92
90
90
90
90
84
78
74

Pressure (mb)

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

Ozone (du)

322
320
317
316
314
312
311
310
308
307
306
304
303
303
302
301
300
300
298
296
294
293
292
291

Thursday 3

Waning Gibbous 51%

21:40

14:41

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: 06:22, Set: 19:49, Transit: 13:05. Moon - Rise: 21:40, Set: 14:41. Civil Dark: 20:25 - 05:46. Nautical Dark: 21:09 - 05:02. Astro Dark: 21:58 - 04:14

Total Clouds (% Sky Obscured)

92
98
92
87
81
84
88
91
92
96
99
79
54
31
33
44
51
59
62
69

Low Clouds (% Sky Obscured)

80
79
81
84
81
81
81
81
85
90
98
74
36
5
9
25
31
39
38
37

Medium Clouds (% Sky Obscured)

70
73
50
28
5
6
7
8
10
19
23
41
41
31
33
44
51
51
43
32

High Clouds (% Sky Obscured)

35
29
17
14
11
23
35
51
59
62
65
49
34
18
14
9
4
5
9
43

ISS Passover

Visibility (miles)

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

Precipitation Type

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

Precipitation Probability (%)

19
2
7
12
12
17
23
18
18
24
28
40
48
55
55
48
30
23
14
3

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.3
0
0
0
0
0

Wind Speed/Direction (mph)

18
19
21
21
21
22
22
21
21
20
19
17
14
12
10
9
9
8
7
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

65
58
51
57
62
69
73
78
85
85
83
82
86
87
90
89
89
87
87
89

Pressure (mb)

1012
1012
1012
1012
1012
1012
1012
1013
1014
1014
1015
1016
1016
1017
1017
1018
1018
1019
1019
1019

Ozone (du)

291
291
292
291
291
291
290
289
288
288
287
287
288
289
289
292
294
297
299
301

Forecast for Darley Abbey, Derby, United Kingdom (52.94,-1.48)

Generated: 28/08/26 11:07:36. Forecast: 28/08/26 to 03/09/26. Timezone: UTC+1.00