Clear Outside v1.0 - International Weather Forecasts For Astronomers

Wednesday 17

Waning Crescent 12%

02:40

18:06

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
11 Bad

Sun - Rise: 06:59, Set: 19:26, Transit: 13:11. Moon - Rise: 02:40, Set: 18:06. Civil Dark: 19:59 - 06:26. Nautical Dark: 20:38 - 05:47. Astro Dark: 21:18 - 05:06

Total Clouds (% Sky Obscured)

94
100
94
94
95
96
97
97
100
98
99
97
96
98
97
92
94
91
96
91
92
79
90
95

Low Clouds (% Sky Obscured)

97
100
100
100
95
96
93
97
100
91
95
90
92
96
94
85
91
89
92
91
92
79
79
83

Medium Clouds (% Sky Obscured)

49
49
61
65
58
54
58
56
59
91
51
53
45
48
39
10
5
2
13
0
0
2
32
26

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
1
1
0
2
11
81
85
54
85
75
41
57
29

ISS Passover

Visibility (miles)

-
-
-
-
4
4
0
0
0
0
0
0
0
0
0
4
9
9
9
9
9
9
9
9

Fog (%)

-
-
-
-
0
0
0
0
0
5
6
21
13
21
7
15
0
13
54
54
55
54
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
3
1
10
31
40
20
22
11
10
8
11
9
9
7
9
5
5
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

13
14
13
14
15
15
15
15
15
15
15
15
15
15
15
14
14
14
13
13
14
14
15
15

Dew Point (°C)

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

Relative Humidity (%)

91
91
93
92
96
96
96
98
98
98
100
98
98
98
98
98
96
95
95
95
93
92
89
85

Pressure (mb)

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

Ozone (du)

263
262
259
257
256
256
257
259
260
259
260
260
261
262
262
263
264
265
264
264
263
262
262
261

Thursday 18

Waning Crescent 6%

04:00

18:26

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
11 Bad

Sun - Rise: 07:00, Set: 19:24, Transit: 13:11. Moon - Rise: 04:00, Set: 18:26. Civil Dark: 19:56 - 06:28. Nautical Dark: 20:35 - 05:49. Astro Dark: 21:16 - 05:08

Total Clouds (% Sky Obscured)

92
93
98
90
96
88
92
98
95
98
97
98
99
99
99
95
99
100
100
100
93
96
95
99

Low Clouds (% Sky Obscured)

79
83
82
85
77
83
78
96
87
93
77
98
84
85
84
84
86
85
85
88
58
61
70
59

Medium Clouds (% Sky Obscured)

35
21
26
32
82
30
3
1
0
1
1
2
3
3
7
2
2
3
2
1
2
1
1
1

High Clouds (% Sky Obscured)

16
19
49
11
45
68
85
90
83
86
91
63
70
88
88
65
81
89
86
89
88
93
93
98

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
1
0
1
8
8
1
0
0
0
0
0
0
1
5
9
9

Fog (%)

0
0
0
0
0
54
39
7
55
1
22
43
0
0
0
2
1
68
83
47
43
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 (%)

10
7
1
1
4
1
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)

18
18
18
18
17
15
13
11
10
11
11
11
11
11
10
10
10
10
10
9
9
9
10
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

84
85
80
80
82
86
92
96
100
98
98
98
98
98
100
100
98
98
98
100
98
93
89
82

Pressure (mb)

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

Ozone (du)

262
261
261
262
263
262
262
262
262
261
261
261
261
261
262
264
264
265
266
267
268
267
267
267

Friday 19

Waning Crescent 6%

05:17

18:41

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
11 Bad

Sun - Rise: 07:02, Set: 19:21, Transit: 13:11. Moon - Rise: 05:17, Set: 18:41. Civil Dark: 19:54 - 06:29. Nautical Dark: 20:33 - 05:50. Astro Dark: 21:13 - 05:10

Total Clouds (% Sky Obscured)

95
97
99
97
85
99
96
93
90
100
97
100
97
99
100
100
100
100
100
100
100
94
91
42

Low Clouds (% Sky Obscured)

67
68
72
70
73
73
71
73
74
76
83
91
79
88
84
80
62
58
71
77
87
81
79
38

Medium Clouds (% Sky Obscured)

2
28
58
60
2
0
0
0
17
14
0
2
32
37
51
68
68
61
55
31
62
75
25
42

High Clouds (% Sky Obscured)

47
40
48
44
30
53
60
73
65
100
92
97
82
91
99
100
100
100
100
100
98
55
50
42

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
6
5
4
9
9
9

Fog (%)

0
0
0
0
0
0
0
2
54
49
48
71
100
100
100
84
67
47
54
51
51
51
51
51

Precipitation Type

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

Precipitation Probability (%)

2
0
0
0
3
0
0
0
0
0
0
0
0
0
1
9
68
61
38
7
17
12
8
37

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.5
0.2
0
0
0
0
0
0

Wind Speed/Direction (mph)

12
12
12
12
12
12
10
7
8
8
7
10
9
9
9
11
10
9
8
10
10
13
15
18

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

78
73
71
70
71
74
81
93
95
95
96
96
98
96
96
98
98
98
98
98
98
95
90
87

Pressure (mb)

1017
1016
1016
1016
1015
1015
1015
1015
1015
1014
1014
1013
1013
1012
1012
1011
1010
1010
1009
1009
1009
1009
1009
1009

Ozone (du)

269
269
269
270
273
274
274
274
274
273
273
273
273
273
273
272
272
272
273
274
274
274
275
274

Saturday 20

Waning Crescent 2%

06:31

18:53

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
11 Bad

Sun - Rise: 07:03, Set: 19:19, Transit: 13:10. Moon - Rise: 06:31, Set: 18:53. Civil Dark: 19:52 - 06:31. Nautical Dark: 20:30 - 05:52. Astro Dark: 21:11 - 05:12

Total Clouds (% Sky Obscured)

67
70
72
75
72
48
45
59
59
72
50
65
74
81
87
92
95
98
100
100
96
100
100
100

Low Clouds (% Sky Obscured)

63
61
58
54
58
48
45
59
59
68
50
65
69
70
69
69
72
73
74
57
40
25
45
63

Medium Clouds (% Sky Obscured)

60
10
18
21
13
6
0
1
2
2
2
1
0
13
26
39
42
44
40
35
30
30
30
63

High Clouds (% Sky Obscured)

43
2
1
27
0
0
0
0
0
0
0
0
0
1
2
3
20
34
25
25
20
20
25
30

ISS Passover

Visibility (miles)

9
0
0
8
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

51
51
51
51
51
51
51
51
51
51
51
51
51
51
51
51
51
51
51
51
51
51
51
51

Precipitation Type

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

Precipitation Probability (%)

86
31
53
42
20
19
16
18
28
18
35
38
38
51
52
53
53
61
69
59
56
46
37
34

Precipitation Amount (mm)

0.8
0
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0
0
0
0
0

Wind Speed/Direction (mph)

20
18
18
19
17
15
14
12
12
10
10
8
8
8
8
7
7
7
8
9
11
12
13
13

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

87
96
96
95
90
86
86
86
90
90
84
84
78
77
80
84
91
87
87
88
85
85
84
88

Pressure (mb)

1010
1010
1010
1010
1010
1010
1011
1011
1011
1011
1012
1012
1012
1012
1012
1012
1011
1011
1012
1012
1013
1013
1014
1014

Ozone (du)

274
276
279
283
288
290
290
291
294
298
300
300
299
299
299
301
303
306
311
313
313
314
314
315

Sunday 21

New Moon 0%

07:43

19:04

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
11 Bad

Sun - Rise: 07:05, Set: 19:17, Transit: 13:10. Moon - Rise: 07:43, Set: 19:04. Civil Dark: 19:49 - 06:32. Nautical Dark: 20:28 - 05:54. Astro Dark: 21:08 - 05:14

Total Clouds (% Sky Obscured)

94
98
97
96
92
91
86
77
76
67
61
64
65
56
55
45
34
36
30
62
69
76
79
84

Low Clouds (% Sky Obscured)

74
68
58
76
68
40
61
49
41
34
40
43
58
42
30
10
10
5
5
57
69
76
79
84

Medium Clouds (% Sky Obscured)

35
89
84
71
26
15
2
0
2
11
28
28
4
6
14
18
11
4
2
30
57
67
57
45

High Clouds (% Sky Obscured)

35
80
70
24
28
35
26
15
40
36
21
6
1
1
1
1
0
1
2
10
19
33
33
27

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
8

Fog (%)

51
51
51
51
51
51
51
51
51
51
51
51
51
51
51
51
51
51
51
51
51
51
51
51

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

31
33
39
38
36
34
24
20
19
20
25
23
22
10
15
19
12
8
19
50
70
90
84
69

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.4
0.8
0.7
0.4

Wind Speed/Direction (mph)

13
15
15
17
17
17
15
14
14
12
12
10
8
10
11
11
10
10
9
10
17
18
19
19

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

83
77
76
77
80
83
86
85
87
87
87
88
91
93
91
90
91
91
93
91
93
93
95
93

Pressure (mb)

1014
1014
1014
1015
1015
1015
1016
1016
1016
1017
1017
1017
1018
1018
1018
1018
1018
1018
1019
1019
1018
1018
1018
1019

Ozone (du)

313
310
310
311
312
313
313
314
315
315
315
315
316
317
318
317
318
319
320
320
320
319
319
319

Monday 22

Waxing Crescent 1%

08:54

19:15

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 OK
04 OK
05 OK
06 OK
07 OK
08 OK
09 OK
10 OK
11 Bad

Sun - Rise: 07:06, Set: 19:15, Transit: 13:10. Moon - Rise: 08:54, Set: 19:15. Civil Dark: 19:47 - 06:34. Nautical Dark: 20:26 - 05:55. Astro Dark: 21:06 - 05:16

Total Clouds (% Sky Obscured)

85
85
86
85
80
71
64
59
59
59
58
49
51
37
29
20
17
23
29
29
31
27
41
54

Low Clouds (% Sky Obscured)

85
78
74
61
48
30
15
22
35
50
47
39
9
4
7
11
17
23
29
20
10
0
23
45

Medium Clouds (% Sky Obscured)

41
35
36
41
46
55
57
59
59
59
55
47
44
34
24
14
11
7
1
5
8
11
6
3

High Clouds (% Sky Obscured)

36
33
23
9
14
14
15
14
13
13
4
3
0
0
0
5
0
0
1
1
1
1
2
3

ISS Passover

Visibility (miles)

8
8
8
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

51
51
51
51
51
51
51
51
51
51
51
51
51
51
51
51
51
51
51
51
51
51
51
51

Precipitation Type

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

Precipitation Probability (%)

48
61
69
74
71
67
61
60
55
43
41
34
12
18
17
4
6
5
1
1
1
0
1
1

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

7
6
7
7
7
7
7
7
6
6
6
6
6
5
4
4
4
4
4
4
4
4
4
5

Dew Point (°C)

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

Relative Humidity (%)

91
90
90
90
90
90
90
90
90
90
90
90
90
88
88
87
87
85
85
85
81
78
76
73

Pressure (mb)

1019
1019
1019
1019
1019
1020
1020
1020
1021
1021
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022

Ozone (du)

320
320
320
319
318
317
317
316
317
318
318
319
320
320
320
320
320
320
319
319
319
318
318
318

Tuesday 23

Waxing Crescent 3%

10:05

19:27

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
11 Bad

Sun - Rise: 07:08, Set: 19:12, Transit: 13:09. Moon - Rise: 10:05, Set: 19:27. Civil Dark: 19:45 - 06:35. Nautical Dark: 20:23 - 05:57. Astro Dark: 21:03 - 05:17

Total Clouds (% Sky Obscured)

68
71
73
76
82
88
95
94
93
92
90
87
78
82
90
100
100
100
100
99
100
98
98
98

Low Clouds (% Sky Obscured)

65
60
54
49
46
40
33
40
47
54
64
75
78
82
68
61
52
48
40
32
25
22
25
28

Medium Clouds (% Sky Obscured)

0
6
13
17
20
27
26
31
36
36
38
29
35
51
57
59
67
71
73
61
52
38
51
68

High Clouds (% Sky Obscured)

2
3
2
2
7
15
22
23
24
28
45
64
78
82
90
100
79
54
34
35
41
50
72
83

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 (%)

51
51
51
51
51
51
51
51
51
51
51
51
51
51
51
51
51
51
51
51
51
51
51
51

Precipitation Type

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

Precipitation Probability (%)

0
3
3
2
13
9
3
42
41
27
39
49
59
42
25
17
29
23
15
28
18
1
8
8

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

16
16
16
16
15
14
13
12
11
11
10
10
9
9
9
9
8
7
7
6
7
8
8
9

Chance of Frost

Temperature (°C)

12
13
13
13
13
12
12
12
11
10
8
8
7
7
7
7
7
7
7
6
8
10
11
12

Feels Like (°C)

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

Dew Point (°C)

7
7
7
6
6
6
6
6
5
5
5
5
5
5
5
5
5
5
5
5
6
6
7
7

Relative Humidity (%)

71
68
66
65
63
64
66
67
69
73
78
81
84
87
87
87
87
88
90
91
84
78
75
70

Pressure (mb)

1022
1022
1021
1021
1020
1020
1020
1020
1020
1020
1020
1020
1020
1019
1019
1019
1018
1018
1018
1018
1018
1018
1018
1017

Ozone (du)

317
316
316
315
314
314
314
313
313
313
313
313
312
312
313
313
314
315
316
317
317
318
318
319

Forecast for Upton, Cornwall, United Kingdom (50.54,-4.43)

Generated: 17/09/25 16:48:24. Forecast: 17/09/25 to 23/09/25. Timezone: UTC+1.00