Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 27

Waxing Gibbous 100%

19:51

No Set

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
02 Bad
03 Bad
04 Bad
05 Bad

Sun - Rise: 06:12, Set: 20:04, Transit: 13:08. Moon - Rise: 19:51, Set: No Set. Civil Dark: 20:39 - 05:38. Nautical Dark: 21:23 - 04:55. Astro Dark: 22:13 - 04:06

Total Clouds (% Sky Obscured)

100
100
93
100
100
100
100
95
88
90
100
99
76
100
93
52
69
64
71
74
82
72
78
71

Low Clouds (% Sky Obscured)

82
53
69
60
83
74
62
55
64
61
33
44
47
32
11
28
47
37
41
41
41
30
35
34

Medium Clouds (% Sky Obscured)

98
94
93
94
93
93
51
11
24
22
80
12
11
7
8
0
6
43
63
0
0
0
0
0

High Clouds (% Sky Obscured)

100
29
85
100
100
100
100
86
75
32
100
95
74
100
84
25
25
25
15
15
15
15
15
15

ISS Passover

Visibility (miles)

9
5
3
2
8
7
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
Light Rain
Very Light Rain
Light Rain
Moderate Rain
Moderate Rain
Light Rain
Light Rain
None
Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

51
55
86
89
95
95
95
95
95
61
88
67
23
18
14
7
4
2
0
0
0
0
0
0

Precipitation Amount (mm)

0
0
0.4
0.3
1.5
2.7
2.9
1.4
0.9
0
0.7
0.3
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

17
17
18
19
20
20
19
15
11
7
7
7
9
11
12
13
13
13
13
13
14
14
14
13

Relative Humidity (%)

95
93
95
96
93
92
89
72
56
43
39
41
46
55
66
78
82
87
90
90
95
96
96
95

Pressure (mb)

1009
1008
1008
1008
1008
1008
1008
1008
1007
1007
1007
1006
1006
1006
1007
1007
1007
1007
1007
1007
1007
1007
1007
1007

Ozone (du)

316
317
317
318
322
324
329
333
336
337
338
340
343
340
339
341
341
341
341
341
341
341
341
341

Friday 28

Full Moon 99%

20:03

06:22

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
02 Bad
03 Bad
04 Bad
05 Bad

Sun - Rise: 06:14, Set: 20:02, Transit: 13:08. Moon - Rise: 20:03, Set: 06:22. Civil Dark: 20:37 - 05:40. Nautical Dark: 21:21 - 04:57. Astro Dark: 22:10 - 04:08

Total Clouds (% Sky Obscured)

64
85
87
79
100
100
100
100
100
100
100
97
84
74
76
69
61
66
69
67
96
100
100
100

Low Clouds (% Sky Obscured)

33
35
40
32
49
32
25
26
57
90
93
87
71
62
67
57
48
49
55
58
85
83
79
79

Medium Clouds (% Sky Obscured)

0
0
0
1
12
97
100
100
100
100
78
33
21
13
13
10
0
0
1
4
0
0
73
96

High Clouds (% Sky Obscured)

6
25
32
41
100
100
100
64
60
62
61
31
34
0
0
0
0
0
0
5
85
100
100
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
0
0
0
0

Precipitation Type

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

Precipitation Probability (%)

0
2
1
6
25
36
59
78
95
95
95
55
15
3
3
3
1
0
0
0
1
2
2
13

Precipitation Amount (mm)

0
0
0
0
0
0
0.2
0.4
1.2
1.2
2.4
0.2
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

95
93
83
73
65
60
56
52
55
65
69
82
89
90
86
87
93
95
96
95
98
90
90
92

Pressure (mb)

1006
1006
1006
1006
1006
1006
1006
1006
1006
1006
1006
1005
1006
1006
1006
1007
1007
1007
1008
1007
1007
1007
1007
1007

Ozone (du)

342
343
343
341
340
339
337
335
331
328
329
327
325
324
321
320
317
312
309
307
305
304
303
301

Saturday 29

Waning Gibbous 96%

20:14

07:39

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
02 Bad
03 Bad
04 Bad
05 Bad

Sun - Rise: 06:15, Set: 19:59, Transit: 13:07. Moon - Rise: 20:14, Set: 07:39. Civil Dark: 20:35 - 05:42. Nautical Dark: 21:18 - 04:59. Astro Dark: 22:07 - 04:11

Total Clouds (% Sky Obscured)

100
100
100
100
100
96
93
100
97
91
100
99
83
72
82
77
92
93
93
95
87
75
80
79

Low Clouds (% Sky Obscured)

83
92
94
96
97
96
89
62
59
78
92
92
83
72
82
75
83
88
66
67
52
22
42
30

Medium Clouds (% Sky Obscured)

100
99
100
100
14
67
26
92
76
39
32
29
17
20
7
6
8
7
3
2
1
0
4
5

High Clouds (% Sky Obscured)

100
100
65
97
80
17
25
87
85
6
0
1
0
0
0
0
1
3
77
83
77
71
53
34

ISS Passover

Visibility (miles)

9
9
9
8
4
9
9
6
5
5
8
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
Very Light Rain
Light Rain
Light Rain
Light Rain
None
Very Light Rain
Very Light Rain
Light Rain
Moderate Rain
Light Rain
Light Rain
Very Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

32
63
95
95
95
66
54
63
95
95
95
95
51
40
23
6
4
14
4
3
3
0
0
0

Precipitation Amount (mm)

0
0.3
1.3
1.2
1.2
0
0.2
0.3
1.2
5
1.7
0.9
0.3
0.3
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

89
90
93
93
93
93
90
81
74
76
78
83
81
82
88
89
92
89
86
89
89
92
92
95

Pressure (mb)

1006
1006
1006
1005
1005
1004
1003
1003
1002
1001
1001
1000
1000
1002
1003
1004
1005
1005
1006
1007
1007
1007
1008
1008

Ozone (du)

299
302
307
306
313
308
308
309
311
309
307
308
310
309
309
311
310
310
309
309
309
310
309
309

Sunday 30

Waning Gibbous 91%

20:26

08:57

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
02 Bad
03 Bad
04 Bad
05 Bad

Sun - Rise: 06:17, Set: 19:57, Transit: 13:07. Moon - Rise: 20:26, Set: 08:57. Civil Dark: 20:32 - 05:44. Nautical Dark: 21:16 - 05:01. Astro Dark: 22:04 - 04:13

Total Clouds (% Sky Obscured)

83
90
95
100
100
100
100
100
100
100
100
100
100
100
100
100
94
87
81
83
83
79
49
45

Low Clouds (% Sky Obscured)

37
43
51
51
37
22
34
68
80
88
85
38
16
29
45
58
59
52
66
72
56
47
44
41

Medium Clouds (% Sky Obscured)

52
88
73
94
96
93
96
83
74
80
75
9
15
21
31
44
91
84
76
73
70
40
4
0

High Clouds (% Sky Obscured)

13
45
71
100
100
99
94
98
85
75
100
100
100
100
100
100
83
67
55
55
55
43
2
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
4
9
9
9
9
9
9
2
4
4
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
Very Light Rain
Light Rain
Light Rain
None
None
None
None
None
Light Rain
Moderate Rain
Very Light Rain
None
None
None
None

Precipitation Probability (%)

0
0
0
0
1
3
21
28
45
63
78
82
58
48
49
55
60
93
95
65
36
8
4
4

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0.3
0.5
0.5
0
0
0
0
0
0.4
2.5
0.3
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

96
96
90
82
74
64
57
50
48
51
52
64
65
70
78
86
90
92
93
95
95
93
95
96

Pressure (mb)

1008
1009
1009
1010
1010
1010
1009
1009
1009
1008
1008
1008
1008
1007
1007
1007
1007
1007
1007
1006
1006
1006
1006
1007

Ozone (du)

310
311
311
311
311
313
315
315
317
322
325
325
325
326
325
326
326
329
330
329
331
328
327
327

Monday 31

Waning Gibbous 83%

20:39

10:17

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

Sun - Rise: 06:18, Set: 19:55, Transit: 13:07. Moon - Rise: 20:39, Set: 10:17. Civil Dark: 20:30 - 05:45. Nautical Dark: 21:13 - 05:02. Astro Dark: 22:01 - 04:15

Total Clouds (% Sky Obscured)

41
68
87
85
55
46
34
61
62
64
64
86
78
80
83
84
76
69
68
75
81
82
87
88

Low Clouds (% Sky Obscured)

41
63
79
72
40
33
22
22
28
32
45
74
4
1
2
2
2
2
3
34
65
82
87
88

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
1
1
64
7
5
7
19
28
36
56
69
68
75
81
82
73
51

High Clouds (% Sky Obscured)

0
9
23
28
22
15
5
52
46
40
23
45
67
52
41
25
26
28
30
30
30
30
31
33

ISS Passover

Visibility (miles)

9
9
0
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
1
1
0
2
3
1
1
4
2
9
10
10
12
11
6
7
7
1
2
4
3
9
9

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

96
98
95
90
79
67
57
50
49
47
48
50
55
65
72
79
86
86
87
87
84
82
79
82

Pressure (mb)

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

Ozone (du)

327
325
324
321
319
318
316
315
316
315
315
314
313
313
313
313
312
314
316
317
319
320
322
323

Tuesday 1

Waning Gibbous 74%

20:56

11:41

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
02 Bad
03 Bad
04 Bad
05 Bad

Sun - Rise: 06:20, Set: 19:53, Transit: 13:06. Moon - Rise: 20:56, Set: 11:41. Civil Dark: 20:28 - 05:47. Nautical Dark: 21:10 - 05:04. Astro Dark: 21:57 - 04:18

Total Clouds (% Sky Obscured)

86
79
70
59
57
55
54
68
83
94
79
66
53
64
76
88
89
88
88
78
69
60
65
65

Low Clouds (% Sky Obscured)

86
79
67
51
50
48
46
61
77
92
65
38
14
17
23
27
23
18
14
12
10
11
15
25

Medium Clouds (% Sky Obscured)

29
29
28
26
20
12
5
4
4
3
4
3
1
1
0
0
0
0
5
4
4
4
11
9

High Clouds (% Sky Obscured)

21
15
10
0
0
0
0
4
13
27
27
24
23
41
62
83
83
83
81
63
49
35
44
54

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
8
7
8
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
Very Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None
Very Light Rain
Very Light Rain
Very Light Rain

Precipitation Probability (%)

7
6
4
1
7
10
10
29
41
56
56
53
49
43
28
15
13
10
8
26
45
63
64
67

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

82
83
79
74
70
62
55
49
56
62
69
69
69
68
74
79
86
87
89
90
89
87
84
86

Pressure (mb)

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

Ozone (du)

323
324
324
324
325
325
325
325
325
326
326
327
328
330
331
332
334
334
334
334
332
330
328
325

Wednesday 2

Waning Gibbous 63%

21:18

13:07

06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
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

Sun - Rise: 06:22, Set: 19:51, Transit: 13:06. Moon - Rise: 21:18, Set: 13:07. Civil Dark: 20:25 - 05:49. Nautical Dark: 21:08 - 05:06. Astro Dark: 21:54 - 04:20

Total Clouds (% Sky Obscured)

71
78
71
64
55
45
36
48
60
72
64
57
48
65
82
100
89
79
68

Low Clouds (% Sky Obscured)

25
24
26
25
15
8
3
2
0
0
2
1
0
2
3
5
10
16
21

Medium Clouds (% Sky Obscured)

10
7
3
0
0
1
1
12
24
37
30
22
11
29
50
71
60
49
37

High Clouds (% Sky Obscured)

71
60
35
11
12
13
15
25
36
46
35
24
13
38
62
86
60
32
5

ISS Passover

Visibility (miles)

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

Precipitation Type

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

Precipitation Probability (%)

63
61
47
15
9
3
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

86
86
78
70
63
56
50
45
42
38
36
38
40
44
50
57
66
71
80

Pressure (mb)

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

Ozone (du)

321
318
315
313
311
309
307
306
304
302
299
298
297
296
296
296
296
296
296

Forecast for Stratton Saint Margaret, Swindon, United Kingdom (51.57,-1.76)

Generated: 27/08/26 06:09:28. Forecast: 27/08/26 to 02/09/26. Timezone: UTC+1.00