Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 1

Waning Gibbous 74%

20:56

13:07

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
14 Bad
15 Bad
16 Bad
17 Bad
18 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)

68
78
83
87
100
100
81
99
97
96
82
100
100
100
100
100
94
87
100
100
100
100
98
94

Low Clouds (% Sky Obscured)

2
29
19
19
22
20
20
19
21
29
30
32
49
61
66
83
78
81
100
100
90
92
87
74

Medium Clouds (% Sky Obscured)

68
78
82
58
58
31
18
67
34
55
26
71
89
100
100
47
29
28
35
9
24
71
84
65

High Clouds (% Sky Obscured)

68
78
83
87
100
100
68
94
44
65
77
100
100
100
75
49
5
82
21
25
16
69
72
8

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

Precipitation Probability (%)

5
3
5
0
0
0
2
4
11
2
0
5
25
62
55
66
64
62
59
12
3
30
25
11

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

11
9
7
6
5
5
5
6
6
6
6
6
7
8
9
9
11
11
13
12
17
15
14
12

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

12
12
12
12
13
13
13
13
12
12
12
12
12
11
11
12
11
8
9
11
12
13
15
15

Relative Humidity (%)

69
75
79
83
87
90
92
90
87
89
90
92
89
82
80
79
69
59
60
72
70
69
76
80

Pressure (mb)

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

Ozone (du)

320
322
322
320
318
314
312
309
307
305
304
302
301
299
299
299
297
297
297
297
297
296
296
295

Wednesday 2

Waning Gibbous 63%

21:19

14:33

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
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad

Sun - Rise: 06:23, Set: 19:51, Transit: 13:06. Moon - Rise: 21:19, Set: 14:33. Civil Dark: 20:25 - 05:49. Nautical Dark: 21:08 - 05:06. Astro Dark: 21:55 - 04:20

Total Clouds (% Sky Obscured)

97
56
72
95
82
81
94
100
100
100
100
100
100
100
100
99
100
100
98
97
94
98
97
74

Low Clouds (% Sky Obscured)

88
42
56
56
46
50
76
100
95
88
82
77
86
88
82
65
83
77
40
24
23
44
61
50

Medium Clouds (% Sky Obscured)

5
0
1
1
2
4
14
22
27
82
60
24
33
29
27
35
29
27
27
27
33
32
24
18

High Clouds (% Sky Obscured)

63
2
38
89
41
45
64
60
67
97
100
84
93
99
93
83
79
97
98
97
94
98
89
59

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 (%)

24
18
5
0
0
0
0
2
2
3
2
2
10
14
15
2
15
8
7
12
28
49
41
17

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

16
16
17
17
16
16
16
16
16
16
16
16
16
16
17
17
17
17
16
14
12
12
12
12

Relative Humidity (%)

85
88
95
96
96
96
96
95
92
93
93
96
95
92
93
88
86
82
70
60
54
56
61
66

Pressure (mb)

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

Ozone (du)

296
297
296
296
294
294
293
292
291
290
289
290
289
289
289
289
289
288
288
287
286
286
286
287

Thursday 3

Waning Gibbous 51%

21:51

15:53

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
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad

Sun - Rise: 06:25, Set: 19:48, Transit: 13:05. Moon - Rise: 21:51, Set: 15:53. Civil Dark: 20:23 - 05:50. Nautical Dark: 21:05 - 05:08. Astro Dark: 21:52 - 04:22

Total Clouds (% Sky Obscured)

75
83
98
79
90
95
94
96
97
88
86
100
100
100
100
100
100
100
100
100
100
80
63
45

Low Clouds (% Sky Obscured)

34
34
29
30
54
95
94
96
94
66
83
83
72
70
64
66
66
67
67
75
16
19
9
17

Medium Clouds (% Sky Obscured)

19
10
7
9
21
27
13
27
34
34
33
77
100
87
100
100
100
100
100
100
100
80
63
45

High Clouds (% Sky Obscured)

20
81
97
53
1
7
2
2
58
87
81
94
77
67
78
100
100
100
100
100
100
72
43
10

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
9
6
2
9
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

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

Precipitation Probability (%)

20
2
1
4
1
2
4
14
34
79
64
49
74
61
66
44
44
79
71
33
9
1
11
1

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0.5
0
0
0.3
0.3
0.6
0
0
0.7
0.3
0
0
0
0
0

Wind Speed/Direction (mph)

10
8
9
14
16
18
17
18
18
18
17
16
14
12
14
11
13
14
15
15
14
14
13
12

Chance of Frost

Temperature (°C)

18
18
17
18
18
18
19
19
19
19
19
18
17
16
16
16
17
17
17
17
17
17
17
16

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

70
73
78
85
88
89
82
85
89
91
90
89
88
90
87
90
89
90
93
89
87
77
71
72

Pressure (mb)

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

Ozone (du)

287
287
287
288
288
288
286
286
286
286
287
286
287
287
287
288
291
292
294
296
298
301
306
314

Friday 4

Third Quarter 39%

22:39

16:58

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

Sun - Rise: 06:26, Set: 19:46, Transit: 13:05. Moon - Rise: 22:39, Set: 16:58. Civil Dark: 20:21 - 05:52. Nautical Dark: 21:03 - 05:10. Astro Dark: 21:49 - 04:25

Total Clouds (% Sky Obscured)

49
8
8
13
18
21
19
16
14
35
37
42
54
66
79
64
36
26
27
63
36
56
60
37

Low Clouds (% Sky Obscured)

8
5
4
7
9
10
7
3
0
0
0
0
0
0
0
8
15
24
27
32
34
30
27
24

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3
0
0
0
0

High Clouds (% Sky Obscured)

15
0
0
0
0
0
5
10
13
35
37
42
54
66
79
62
19
8
3
52
3
33
41
13

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)

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

Chance of Frost

Temperature (°C)

16
15
14
13
12
12
12
11
11
10
10
10
10
12
13
15
16
17
18
19
19
19
19
18

Feels Like (°C)

13
13
14
13
13
12
12
12
11
10
8
8
8
10
12
13
14
16
17
19
16
18
17
16

Dew Point (°C)

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

Relative Humidity (%)

68
70
76
79
83
86
86
87
88
87
87
87
85
80
71
65
55
50
46
43
40
39
38
43

Pressure (mb)

1017
1018
1019
1020
1020
1021
1021
1022
1022
1023
1023
1024
1025
1025
1026
1026
1026
1026
1026
1026
1026
1026
1025
1026

Ozone (du)

320
325
329
334
337
337
329
323
321
318
316
313
311
308
307
306
304
303
302
300
298
296
296
295

Saturday 5

Waning Crescent 28%

23:45

17:45

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

Sun - Rise: 06:28, Set: 19:44, Transit: 13:05. Moon - Rise: 23:45, Set: 17:45. Civil Dark: 20:18 - 05:54. Nautical Dark: 21:00 - 05:12. Astro Dark: 21:46 - 04:27

Total Clouds (% Sky Obscured)

40
37
42
44
55
43
44
47
49
56
63
78
51
49
45
44
42
52
73
89
100
100
100
99

Low Clouds (% Sky Obscured)

16
10
2
1
1
0
4
7
10
14
16
20
4
5
4
2
1
0
0
0
0
11
22
34

Medium Clouds (% Sky Obscured)

0
0
1
6
55
13
12
12
12
7
9
9
9
9
8
15
21
27
49
70
92
93
95
96

High Clouds (% Sky Obscured)

25
28
42
44
48
3
2
4
4
23
44
67
11
17
21
29
37
45
63
82
100
97
96
95

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
3
7
11

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
4
3
3
3
3
3
3
3
4
5
5
6
7
9
11
11
12
13
13
13
14
13
12

Chance of Frost

Temperature (°C)

17
15
14
13
12
12
11
12
12
12
13
13
13
15
17
18
20
21
23
23
23
24
23
21

Feels Like (°C)

17
15
13
11
10
10
11
12
13
12
12
12
13
13
13
14
15
15
15
21
20
19
20
21

Dew Point (°C)

7
6
5
4
4
4
4
5
6
7
7
8
8
8
8
8
8
8
8
9
10
11
12
12

Relative Humidity (%)

51
54
55
57
58
58
62
63
65
67
69
71
70
62
57
52
46
43
38
40
43
45
49
54

Pressure (mb)

1026
1026
1026
1026
1026
1026
1026
1025
1025
1024
1024
1024
1024
1023
1023
1022
1022
1021
1021
1020
1020
1019
1019
1018

Ozone (du)

294
294
292
289
288
288
287
286
286
286
286
286
287
286
286
285
285
284
284
283
283
283
284
285

Sunday 6

Waning Crescent 18%

01:06

18:17

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
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad

Sun - Rise: 06:30, Set: 19:42, Transit: 13:04. Moon - Rise: 01:06, Set: 18:17. Civil Dark: 20:16 - 05:56. Nautical Dark: 20:58 - 05:14. Astro Dark: 21:43 - 04:29

Total Clouds (% Sky Obscured)

100
100
100
99
99
98
84
74
70
73
76
77
73
69
64
66
64
62
72
82
92
89
86
82

Low Clouds (% Sky Obscured)

41
46
52
49
45
42
29
17
5
3
2
4
4
6
6
13
21
28
34
41
47
36
27
17

Medium Clouds (% Sky Obscured)

79
61
42
51
62
73
63
53
43
34
22
10
9
8
8
2
1
2
2
3
3
10
9
12

High Clouds (% Sky Obscured)

97
100
100
88
76
61
39
18
1
23
46
71
63
59
54
47
41
34
49
64
81
72
59
40

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

Precipitation Probability (%)

25
39
52
48
46
36
29
14
2
2
4
0
1
4
1
1
1
1
5
5
0
0
0
0

Precipitation Amount (mm)

0
0
0.2
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
10
9
8
8
8
8
7
7
7
7
7
8
8
9
9
11
12
13
13
13
14
14
13

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

21
16
16
17
16
15
15
14
15
15
15
15
15
15
15
15
16
16
17
22
21
20
21
21

Dew Point (°C)

12
12
12
12
12
12
12
13
13
14
14
14
14
14
14
13
13
13
13
13
13
13
13
13

Relative Humidity (%)

59
62
66
70
72
73
75
81
85
90
92
92
92
86
79
73
67
62
57
57
57
57
62
66

Pressure (mb)

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

Ozone (du)

286
286
286
286
288
289
291
292
293
294
295
295
296
297
299
300
299
299
298
297
295
293
292
292

Monday 7

Waning Crescent 9%

02:36

18:40

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

Sun - Rise: 06:31, Set: 19:39, Transit: 13:04. Moon - Rise: 02:36, Set: 18:40. Civil Dark: 20:13 - 05:57. Nautical Dark: 20:55 - 05:16. Astro Dark: 21:40 - 04:31

Total Clouds (% Sky Obscured)

88
92
97
89
81
73
82
91
100
89
81
76
83
88
92
88
84
81

Low Clouds (% Sky Obscured)

22
30
37
25
16
7
30
56
84
88
81
76
83
78
68
64
60
56

Medium Clouds (% Sky Obscured)

15
18
17
15
14
11
16
22
23
15
6
0
10
20
30
53
75
81

High Clouds (% Sky Obscured)

28
19
11
11
12
13
22
32
42
35
31
29
31
31
26
28
33
38

ISS Passover

Visibility (miles)

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

Precipitation Type

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

Precipitation Probability (%)

2
12
49
76
75
55
27
12
8
36
42
42
28
15
0
0
1
1

Precipitation Amount (mm)

0
0
0
0.4
0.3
0.2
0
0
0
0
0
0.2
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

21
15
15
16
15
14
13
12
11
11
11
11
11
10
9
9
10
10

Dew Point (°C)

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

Relative Humidity (%)

69
77
83
92
93
95
98
90
83
76
74
72
70
68
66
64
62
58

Pressure (mb)

1014
1014
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1014
1014
1014
1014

Ozone (du)

291
290
290
289
288
288
287
287
286
286
286
285
285
285
284
284
285
285

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

Generated: 01/09/26 19:42:23. Forecast: 01/09/26 to 07/09/26. Timezone: UTC+1.00