Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 30

Waning Gibbous 91%

20:26

10:17

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
11 Bad
12 Bad
13 Bad

Sun - Rise: 06:19, Set: 19:57, Transit: 13:07. Moon - Rise: 20:26, Set: 10:17. Civil Dark: 20:32 - 05:44. Nautical Dark: 21:16 - 05:01. Astro Dark: 22:04 - 04:13

Total Clouds (% Sky Obscured)

92
79
100
100
82
70
77
70
72
79
98
88
100
97
92
80
51
44
60
88
84
84
85
57

Low Clouds (% Sky Obscured)

54
75
46
52
78
38
44
39
46
53
57
75
74
78
66
55
45
41
58
86
76
79
83
52

Medium Clouds (% Sky Obscured)

7
8
15
92
82
70
0
10
14
60
7
22
89
34
21
9
5
0
0
11
11
7
3
0

High Clouds (% Sky Obscured)

65
75
75
100
30
30
76
65
61
40
98
68
100
76
63
77
1
0
0
0
0
0
0
1

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

50
53
68
95
74
34
29
37
85
64
27
14
25
11
7
0
0
0
1
1
14
23
30
25

Precipitation Amount (mm)

0
0.5
0.8
0.8
0.3
0
0
0
0.6
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

49
52
63
55
79
87
90
92
93
92
90
93
93
92
87
90
90
92
92
86
85
83
78
68

Pressure (mb)

1008
1007
1007
1006
1007
1006
1006
1006
1006
1005
1005
1005
1005
1005
1006
1006
1007
1008
1009
1010
1011
1012
1013
1014

Ozone (du)

319
319
321
326
328
331
331
330
330
336
336
338
338
339
339
338
339
338
336
334
329
329
327
327

Monday 31

Waning Gibbous 83%

20:39

11:41

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
11 Bad
12 Bad
13 Bad

Sun - Rise: 06:20, Set: 19:55, Transit: 13:06. Moon - Rise: 20:39, Set: 11:41. Civil Dark: 20:30 - 05:45. Nautical Dark: 21:13 - 05:03. Astro Dark: 22:01 - 04:15

Total Clouds (% Sky Obscured)

78
100
100
100
100
100
100
100
98
100
54
76
51
54
53
53
76
88
67
77
81
81
78
71

Low Clouds (% Sky Obscured)

74
64
64
79
78
2
0
0
10
0
0
0
0
8
18
17
23
36
43
49
42
48
60
71

Medium Clouds (% Sky Obscured)

0
0
5
5
7
16
24
100
97
92
54
76
51
33
43
53
59
59
44
44
40
21
15
10

High Clouds (% Sky Obscured)

30
99
100
100
100
100
100
100
94
100
30
19
8
32
0
0
5
5
5
5
15
66
1
3

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 (%)

20
18
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
11
10
4

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)

16
16
15
14
13
12
9
7
6
6
4
4
5
4
5
5
5
5
6
9
12
12
13
13

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

59
63
64
63
64
63
69
71
72
71
73
79
83
87
90
92
92
89
82
78
73
63
58
55

Pressure (mb)

1014
1015
1016
1016
1017
1017
1018
1019
1020
1020
1020
1020
1020
1020
1020
1020
1020
1021
1021
1021
1021
1021
1021
1021

Ozone (du)

325
322
319
316
316
316
315
316
316
316
315
314
314
314
313
311
311
312
313
313
315
318
320
318

Tuesday 1

Waning Gibbous 74%

20:56

13:07

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
11 Bad
12 Bad
13 Bad

Sun - Rise: 06:22, Set: 19:53, Transit: 13:06. Moon - Rise: 20:56, Set: 13:07. Civil Dark: 20:28 - 05:47. Nautical Dark: 21:10 - 05:05. Astro Dark: 21:58 - 04:18

Total Clouds (% Sky Obscured)

80
84
100
66
100
100
100
100
100
98
97
100
100
100
100
100
98
99
99
99
97
99
100
97

Low Clouds (% Sky Obscured)

78
49
15
7
6
9
11
20
29
50
40
31
31
43
47
26
22
26
80
73
22
88
90
91

Medium Clouds (% Sky Obscured)

10
7
7
4
70
61
77
73
61
88
37
78
84
81
53
99
98
99
99
72
67
25
17
96

High Clouds (% Sky Obscured)

4
46
100
37
100
100
100
100
100
70
26
100
99
100
100
86
59
62
72
98
96
86
92
60

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 (%)

4
1
2
3
8
0
0
0
0
0
0
0
0
0
0
2
15
26
38
48
40
27
13
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)

13
13
14
14
12
11
9
7
7
6
6
6
6
5
6
7
7
7
9
11
12
14
15
16

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

54
49
47
50
58
65
75
85
89
95
95
95
95
93
89
86
89
89
86
82
72
63
71
66

Pressure (mb)

1021
1020
1020
1020
1021
1021
1021
1022
1022
1022
1022
1022
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1020
1020

Ozone (du)

319
317
317
317
318
318
316
311
309
308
304
302
300
299
298
297
296
295
294
294
294
294
294
294

Wednesday 2

Waning Gibbous 63%

21:19

No Set

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
11 Bad
12 Bad
13 Bad

Sun - Rise: 06:23, Set: 19:51, Transit: 13:06. Moon - Rise: 21:19, Set: No Set. Civil Dark: 20:25 - 05:49. Nautical Dark: 21:08 - 05:06. Astro Dark: 21:55 - 04:20

Total Clouds (% Sky Obscured)

93
89
92
96
100
98
94
89
95
93
90
94
97
99
100
100
100
100
100
87
69
87
97
69

Low Clouds (% Sky Obscured)

89
89
65
88
60
56
34
54
95
93
59
92
94
98
96
95
93
95
92
62
60
54
50
48

Medium Clouds (% Sky Obscured)

10
9
92
92
96
82
63
19
68
14
67
82
76
72
78
84
93
80
85
28
28
60
77
14

High Clouds (% Sky Obscured)

39
17
15
8
4
10
11
3
14
16
17
44
67
79
86
93
100
98
96
73
37
38
64
33

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
20
27
22
6
4
6
2
6
7
7
11
9
4
11
14
26
30
32
41
42
42
37
33

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

70
72
75
73
72
76
79
81
79
78
79
83
85
85
88
89
90
92
83
80
68
60
54
50

Pressure (mb)

1019
1019
1019
1019
1018
1018
1018
1019
1019
1019
1018
1018
1018
1018
1018
1018
1017
1018
1018
1018
1018
1018
1018
1018

Ozone (du)

294
293
293
292
291
291
291
291
290
289
289
290
290
290
289
288
289
289
289
290
292
291
291
291

Thursday 3

Waning Gibbous 51%

21:51

14:33

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
11 Bad
12 Bad
13 Bad

Sun - Rise: 06:25, Set: 19:48, Transit: 13:05. Moon - Rise: 21:51, Set: 14:33. Civil Dark: 20:23 - 05:50. Nautical Dark: 21:05 - 05:08. Astro Dark: 21:52 - 04:22

Total Clouds (% Sky Obscured)

63
63
73
72
70
81
78
94
89
98
100
100
100
100
100
100
100
98
96
94
94
95
89
82

Low Clouds (% Sky Obscured)

51
53
54
46
37
47
47
33
44
96
96
97
98
99
87
75
61
41
29
11
13
15
17
36

Medium Clouds (% Sky Obscured)

12
8
8
11
9
13
7
11
54
69
78
80
85
89
90
91
90
72
52
32
25
17
10
8

High Clouds (% Sky Obscured)

15
2
13
21
28
42
28
61
42
71
68
78
89
96
98
99
100
97
95
91
90
89
82
56

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
5
5
6
6
7
8
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
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
None
None
None
None
None
None
None
None

Precipitation Probability (%)

28
11
10
10
10
9
5
1
17
28
52
78
92
95
81
58
12
13
17
12
25
29
34
32

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0.4
0.7
0.9
0.6
0.3
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

48
49
51
54
60
64
66
71
72
70
70
76
82
88
95
93
93
92
85
78
72
65
61
56

Pressure (mb)

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

Ozone (du)

292
292
292
292
292
290
289
290
289
289
289
289
292
294
297
301
305
310
311
312
313
313
313
313

Friday 4

Third Quarter 39%

22:39

15:53

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

Sun - Rise: 06:26, Set: 19:46, Transit: 13:05. Moon - Rise: 22:39, Set: 15:53. Civil Dark: 20:21 - 05:52. Nautical Dark: 21:03 - 05:10. Astro Dark: 21:49 - 04:25

Total Clouds (% Sky Obscured)

80
78
80
81
80
70
62
45
37
33
28
46
65
82
89
94
100
99
98
96
91
87
82
80

Low Clouds (% Sky Obscured)

55
74
68
62
57
39
22
4
1
1
0
0
0
0
8
17
25
48
70
93
72
52
32
22

Medium Clouds (% Sky Obscured)

3
3
2
2
0
6
13
17
18
19
20
21
27
32
38
39
40
41
33
25
10
6
6
5

High Clouds (% Sky Obscured)

28
2
28
45
67
56
43
34
37
33
28
46
65
82
88
93
100
84
68
51
51
48
46
50

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 (%)

27
17
15
15
16
14
9
2
2
1
0
0
0
0
7
11
13
19
23
24
20
12
2
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)

17
17
17
17
16
15
14
12
11
10
8
7
7
6
6
6
5
5
6
8
9
9
9
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

11
12
13
13
13
13
12
11
10
10
10
10
10
10
10
10
10
10
9
8
7
6
6
5

Relative Humidity (%)

58
61
63
67
69
72
72
72
73
76
79
84
84
86
86
86
86
84
74
67
58
53
48
44

Pressure (mb)

1014
1014
1014
1015
1015
1016
1016
1017
1017
1018
1018
1019
1019
1019
1019
1020
1021
1021
1022
1022
1023
1023
1023
1024

Ozone (du)

313
312
312
312
312
312
313
313
314
315
316
316
316
315
314
314
313
312
311
310
309
308
307
306

Saturday 5

Waning Crescent 28%

23:45

16:58

14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 OK
00 OK
01 OK
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad

Sun - Rise: 06:28, Set: 19:44, Transit: 13:05. Moon - Rise: 23:45, Set: 16:58. Civil Dark: 20:18 - 05:54. Nautical Dark: 21:00 - 05:12. Astro Dark: 21:46 - 04:27

Total Clouds (% Sky Obscured)

76
71
80
88
98
94
91
87
87
35
23
32
45
58
53
51
46

Low Clouds (% Sky Obscured)

12
1
1
1
2
2
1
1
1
1
1
1
1
2
0
0
0

Medium Clouds (% Sky Obscured)

3
2
7
14
19
19
5
5
6
11
21
32
43
53
47
37
26

High Clouds (% Sky Obscured)

53
48
55
69
88
62
42
21
29
35
23
32
21
8
11
13
14

ISS Passover

Visibility (miles)

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

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

1
0
0
0
0
0
0
0
10
16
22
22
25
27
27
26
16

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

42
40
39
43
48
53
60
69
79
80
80
81
80
79
79
76
75

Pressure (mb)

1024
1024
1024
1024
1024
1024
1024
1024
1025
1025
1025
1025
1024
1024
1023
1023
1022

Ozone (du)

304
303
301
299
297
295
294
293
292
292
292
292
293
294
294
294
294

Forecast for Swindon, Swindon, United Kingdom (51.56,-1.78)

Generated: 30/08/26 14:26:32. Forecast: 30/08/26 to 05/09/26. Timezone: UTC+1.00