Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 18

Waning Crescent 12%

03:40

18:22

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
06 Bad
07 Bad
08 Bad
09 Bad

Sun - Rise: 06:48, Set: 19:13, Transit: 12:59. Moon - Rise: 03:40, Set: 18:22. Civil Dark: 19:47 - 06:13. Nautical Dark: 20:28 - 05:32. Astro Dark: 21:12 - 04:49

Total Clouds (% Sky Obscured)

92
94
94
90
88
61
67
65
72
69
83
94
99
96
97
98
100
100
100
100
100
100
98
100

Low Clouds (% Sky Obscured)

92
90
72
66
68
54
57
51
60
56
55
58
65
73
68
74
74
72
73
75
76
72
73
73

Medium Clouds (% Sky Obscured)

6
28
33
30
24
11
17
14
21
17
30
59
52
50
76
73
99
66
51
55
30
87
90
70

High Clouds (% Sky Obscured)

53
58
65
69
58
61
43
18
12
10
7
11
8
10
9
64
100
100
100
100
100
100
90
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
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 (%)

11
22
69
28
8
10
5
10
2
0
0
11
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0
0
0.6
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

92
95
91
86
89
89
92
85
81
85
88
86
85
83
93
92
90
93
95
95
95
95
93
89

Pressure (mb)

1015
1015
1015
1015
1015
1016
1015
1015
1016
1016
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1016
1017
1017
1017

Ozone (du)

259
258
259
259
258
257
258
258
258
259
260
261
260
261
261
261
260
260
261
263
263
261
262
262

Friday 19

Waning Crescent 6%

05:00

18:34

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
06 Bad
07 Bad
08 Bad
09 Bad

Sun - Rise: 06:49, Set: 19:10, Transit: 12:59. Moon - Rise: 05:00, Set: 18:34. Civil Dark: 19:45 - 06:15. Nautical Dark: 20:26 - 05:34. Astro Dark: 21:09 - 04:51

Total Clouds (% Sky Obscured)

98
67
65
64
67
75
60
54
78
91
99
99
98
99
100
100
97
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

69
67
65
64
65
66
53
45
39
29
55
54
75
85
100
100
93
80
90
89
96
95
80
90

Medium Clouds (% Sky Obscured)

25
6
4
6
8
32
18
18
35
20
48
5
18
23
34
59
52
70
98
100
81
100
100
100

High Clouds (% Sky Obscured)

92
38
42
7
7
12
9
8
27
83
92
98
86
66
43
100
83
100
100
100
100
74
88
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
2
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
1
0
0
0
0
0
0
1
2
1
1
1
5
6
1
6
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)

14
14
15
15
15
15
14
13
11
8
7
6
6
6
5
6
6
5
5
4
4
4
5
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

81
73
66
60
57
53
54
58
62
72
76
82
86
87
89
90
90
90
93
93
93
93
90
84

Pressure (mb)

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

Ozone (du)

262
262
262
261
260
260
260
262
263
264
264
265
267
267
267
267
267
267
268
268
266
266
266
265

Saturday 20

Waning Crescent 2%

06:17

18:44

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
06 Bad
07 Bad
08 Bad
09 Bad

Sun - Rise: 06:51, Set: 19:08, Transit: 12:59. Moon - Rise: 06:17, Set: 18:44. Civil Dark: 19:42 - 06:17. Nautical Dark: 20:23 - 05:36. Astro Dark: 21:06 - 04:53

Total Clouds (% Sky Obscured)

99
93
100
97
99
100
99
100
99
80
93
59
42
50
62
58
63
81
98
94
98
92
87
83

Low Clouds (% Sky Obscured)

86
91
100
72
47
57
68
90
88
70
93
57
42
50
60
58
59
80
96
92
84
71
57
47

Medium Clouds (% Sky Obscured)

83
69
62
72
61
67
79
88
98
14
0
0
0
0
0
0
0
0
43
47
62
55
51
40

High Clouds (% Sky Obscured)

91
36
63
56
95
100
41
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0

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

Precipitation Probability (%)

11
7
15
39
44
27
25
76
87
71
11
2
14
16
22
33
5
19
16
32
27
14
26
27

Precipitation Amount (mm)

0
0
0
0
0
0
0
0.5
0.6
0.5
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

7
9
11
10
11
11
12
11
11
13
12
13
11
11
16
17
19
18
18
14
19
19
17
17

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

80
75
66
56
49
46
50
54
59
57
66
68
71
84
77
70
76
75
72
75
77
68
67
71

Pressure (mb)

1010
1009
1008
1008
1007
1006
1005
1004
1003
1002
1002
1003
1003
1003
1002
1002
1002
1002
1002
1003
1004
1005
1006
1007

Ozone (du)

266
265
265
266
267
269
268
269
272
277
279
282
286
287
290
293
295
299
301
303
305
308
310
312

Sunday 21

New Moon 0%

07:32

18:53

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
06 Bad
07 Bad
08 Bad
09 Bad

Sun - Rise: 06:53, Set: 19:06, Transit: 12:58. Moon - Rise: 07:32, Set: 18:53. Civil Dark: 19:40 - 06:18. Nautical Dark: 20:21 - 05:38. Astro Dark: 21:04 - 04:55

Total Clouds (% Sky Obscured)

89
93
97
96
95
94
84
71
58
43
34
41
43
49
59
57
52
54
45
40
40
37
43
49

Low Clouds (% Sky Obscured)

63
78
91
82
74
66
65
64
58
43
34
33
28
27
27
32
46
54
45
40
35
37
34
31

Medium Clouds (% Sky Obscured)

41
44
67
43
44
45
30
18
2
12
34
41
43
38
31
30
18
11
5
40
35
31
28
16

High Clouds (% Sky Obscured)

0
15
22
18
0
0
0
0
0
15
13
25
30
32
40
40
40
30
26
35
35
6
3
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
8
6
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
21
13
10
10
9
12
18
31
34
39
43
39
32
32
29
29
28
32
42
40
33
21
3

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
17
16
14
12
9
7
7
8
9
10
11
12
13
16
17
17
18
17
16
17
17
18

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

6
7
7
8
9
10
11
11
10
9
8
6
5
5
5
3
1
2
1
2
2
2
2
2

Dew Point (°C)

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

Relative Humidity (%)

71
70
67
66
61
61
64
67
71
75
80
88
88
90
91
91
88
85
82
84
85
82
78
75

Pressure (mb)

1008
1009
1009
1010
1010
1011
1011
1012
1012
1013
1014
1015
1015
1016
1016
1017
1017
1018
1018
1019
1019
1020
1021
1021

Ozone (du)

313
311
310
311
313
313
313
314
313
312
311
310
311
311
311
312
313
314
314
314
314
315
316
316

Monday 22

Waxing Crescent 1%

08:46

19:01

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

Sun - Rise: 06:54, Set: 19:03, Transit: 12:58. Moon - Rise: 08:46, Set: 19:01. Civil Dark: 19:37 - 06:20. Nautical Dark: 20:18 - 05:39. Astro Dark: 21:01 - 04:57

Total Clouds (% Sky Obscured)

62
61
65
64
60
54
52
51
56
49
46
4
14
24
35
47
60
68
76
83
91
94
97
100

Low Clouds (% Sky Obscured)

35
46
58
53
47
39
37
40
43
29
15
0
9
17
26
23
19
16
10
5
0
7
20
48

Medium Clouds (% Sky Obscured)

6
3
3
3
1
0
0
0
0
0
0
0
10
18
31
35
39
43
51
67
63
58
52
47

High Clouds (% Sky Obscured)

0
0
0
0
0
2
0
3
3
2
0
1
1
1
1
4
8
8
13
17
20
38
53
65

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 (%)

1
0
0
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
1
1
6
6
6

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
16
15
14
13
13
11
10
8
5
6
6
5
5
5
4
4
4
5
4
4
4
6
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

3
4
6
7
7
7
7
7
7
7
6
5
5
5
5
4
4
4
4
4
3
3
6
6

Dew Point (°C)

5
5
6
5
4
5
5
4
3
2
1
0
1
2
2
2
2
2
1
2
2
2
3
3

Relative Humidity (%)

74
69
65
58
56
62
59
58
58
56
55
56
67
75
78
79
78
78
78
76
74
71
70
69

Pressure (mb)

1022
1022
1022
1022
1022
1023
1023
1023
1023
1023
1024
1024
1024
1024
1024
1024
1024
1024
1023
1023
1024
1024
1024
1024

Ozone (du)

316
313
313
311
309
308
307
306
306
306
307
308
307
306
304
304
304
303
302
302
301
300
301
301

Tuesday 23

Waxing Crescent 3%

10:00

19:10

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
06 Bad
07 Bad
08 Bad
09 Bad

Sun - Rise: 06:56, Set: 19:01, Transit: 12:58. Moon - Rise: 10:00, Set: 19:10. Civil Dark: 19:35 - 06:22. Nautical Dark: 20:16 - 05:41. Astro Dark: 20:58 - 04:59

Total Clouds (% Sky Obscured)

84
64
33
36
43
49
63
79
87
86
89
88
88
87
91
95
95
95
100
100
95
91
92
92

Low Clouds (% Sky Obscured)

50
44
33
36
43
49
63
66
63
60
58
55
55
58
61
49
37
25
33
42
46
46
47
53

Medium Clouds (% Sky Obscured)

40
33
30
35
30
29
15
7
9
5
9
15
23
27
41
50
58
62
69
72
69
73
72
75

High Clouds (% Sky Obscured)

47
25
2
2
2
1
26
55
86
86
89
88
85
85
80
80
75
75
80
90
80
75
75
65

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

Precipitation Probability (%)

28
35
38
59
69
76
69
61
49
36
26
7
27
36
41
42
39
29
32
26
9
15
13
11

Precipitation Amount (mm)

0
0
0
0.2
0.4
0.5
0.4
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

4
4
3
2
2
1
1
2
4
5
5
5
5
5
5
5
5
5
6
6
6
5
5
4

Relative Humidity (%)

68
61
55
50
48
46
43
51
60
71
72
74
77
79
81
82
84
82
84
84
84
82
75
69

Pressure (mb)

1024
1024
1024
1024
1024
1024
1023
1024
1024
1024
1024
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025

Ozone (du)

301
301
301
301
300
300
300
298
297
296
297
297
298
298
297
297
296
296
296
296
296
296
295
294

Wednesday 24

Waxing Crescent 7%

10:00

19:20

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
06 Bad

Sun - Rise: 06:58, Set: 18:58, Transit: 12:57. Moon - Rise: 10:00, Set: 19:20. Civil Dark: 19:33 - 06:24. Nautical Dark: 20:13 - 05:43. Astro Dark: 20:55 - 05:01

Total Clouds (% Sky Obscured)

94
85
86
84
82
85
92
97
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

50
45
39
52
64
76
73
69
68
69
72
77
80
81
78
80
85
89
84
80
75

Medium Clouds (% Sky Obscured)

70
60
55
40
40
40
40
40
35
39
34
34
33
38
42
48
54
54
65
65
65

High Clouds (% Sky Obscured)

50
36
32
37
33
43
53
67
67
72
67
67
57
52
47
53
59
65
72
78
82

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

Fog (%)

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

Precipitation Probability (%)

27
35
39
40
40
42
39
41
44
41
40
39
35
31
23
29
30
24
35
40
41

Precipitation Amount (mm)

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

4
4
4
4
4
4
4
5
5
5
5
5
5
5
5
5
5
5
5
5
5

Relative Humidity (%)

64
60
57
53
53
52
51
55
60
63
63
63
63
64
66
67
67
67
67
68
68

Pressure (mb)

1026
1026
1025
1025
1025
1025
1025
1025
1025
1026
1026
1026
1027
1027
1027
1027
1027
1027
1027
1027
1027

Ozone (du)

294
293
293
293
292
292
292
292
292
292
292
292
292
292
293
293
293
294
294
294
293

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

Generated: 18/09/25 10:13:32. Forecast: 18/09/25 to 24/09/25. Timezone: UTC+1.00