Clear Outside v1.0 - International Weather Forecasts For Astronomers

Saturday 13

Waning Gibbous 52%

22:01

14:47

12 Bad
13 Bad
14 Bad
15 Bad
16 OK
17 OK
18 Good
19 Good
20 OK
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: 06:56, Set: 19:37, Transit: 13:16. Moon - Rise: 22:01, Set: 14:47. Civil Dark: 20:10 - 06:23. Nautical Dark: 20:49 - 05:44. Astro Dark: 21:30 - 05:03

Total Clouds (% Sky Obscured)

69
58
57
53
38
27
0
6
34
95
100
100
98
91
84
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

49
45
39
32
38
27
0
6
29
50
44
47
47
50
43
41
16
39
56
62
87
96
100
95

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
26
19
73
100
100
100
98
100
91
65
48

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
3
33
99
100
97
87
83
81
92
100
100
100
100
100
100
48

ISS Passover

Visibility (miles)

8
8
8
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
4
2
6

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
Light Rain
Light Rain
Moderate Rain
None
None

Precipitation Probability (%)

31
32
23
9
5
4
5
7
7
19
13
10
2
2
3
1
0
1
35
93
95
95
64
38

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.6
1.9
3.3
0
0

Wind Speed/Direction (mph)

16
17
16
16
17
16
14
12
9
7
5
5
5
4
5
5
5
6
8
11
15
17
21
21

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

72
69
68
67
62
65
67
69
76
80
81
86
84
83
83
84
87
89
93
95
95
96
98
96

Pressure (mb)

1010
1011
1011
1011
1011
1011
1011
1012
1012
1013
1013
1013
1013
1013
1013
1012
1012
1011
1011
1010
1009
1009
1008
1007

Ozone (du)

319
315
314
314
313
313
307
300
293
289
286
284
283
282
277
273
272
267
262
260
259
262
263
263

Sunday 14

Third Quarter 41%

22:55

16:01

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

Sun - Rise: 06:57, Set: 19:35, Transit: 13:15. Moon - Rise: 22:55, Set: 16:01. Civil Dark: 20:08 - 06:25. Nautical Dark: 20:47 - 05:46. Astro Dark: 21:28 - 05:05

Total Clouds (% Sky Obscured)

93
92
100
100
99
42
81
68
72
53
70
46
41
31
27
31
46
48
59
49
48
47
47
62

Low Clouds (% Sky Obscured)

86
77
89
94
98
39
69
56
71
53
63
45
39
31
27
31
46
48
59
49
48
47
47
49

Medium Clouds (% Sky Obscured)

35
25
74
76
72
26
27
27
4
0
8
0
0
0
0
0
0
0
0
0
0
0
0
28

High Clouds (% Sky Obscured)

31
41
49
67
89
42
2
2
2
0
2
3
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

6
9
7
9
6
4
3
9
9
9
9
9
9
8
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
Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

29
18
43
52
56
80
38
14
11
16
17
28
20
21
9
17
10
11
16
24
30
27
27
34

Precipitation Amount (mm)

0
0
0
0
0
0.5
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

18
22
25
27
26
25
26
25
25
26
27
27
28
26
26
25
25
25
25
25
25
26
27
28

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

14
15
14
12
12
11
11
11
11
10
10
8
7
8
9
10
9
9
9
8
9
9
9
9

Dew Point (°C)

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

Relative Humidity (%)

96
95
96
93
90
92
92
85
86
85
86
86
78
83
83
83
82
80
80
82
80
80
78
77

Pressure (mb)

1006
1006
1005
1005
1004
1004
1004
1004
1005
1005
1006
1006
1007
1007
1008
1008
1009
1009
1009
1010
1010
1011
1011
1012

Ozone (du)

262
261
262
264
265
265
266
269
271
273
274
274
277
277
278
281
284
285
286
288
289
291
294
297

Monday 15

Waning Crescent 30%

00:04

16:58

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: 19:33, Transit: 13:15. Moon - Rise: 00:04, Set: 16:58. Civil Dark: 20:06 - 06:26. Nautical Dark: 20:44 - 05:48. Astro Dark: 21:25 - 05:07

Total Clouds (% Sky Obscured)

68
71
57
44
34
45
46
46
49
51
43
77
100
100
97
62
79
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

52
65
57
44
34
45
46
46
49
51
43
50
57
55
58
59
38
49
46
48
48
53
54
57

Medium Clouds (% Sky Obscured)

26
21
2
0
0
0
0
0
0
0
0
0
0
2
17
44
58
16
62
59
54
70
76
77

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
32
100
99
95
54
70
100
100
100
100
100
100
100

ISS Passover

Visibility (miles)

7
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 (%)

36
35
32
23
22
11
4
2
6
3
2
11
5
12
20
20
15
23
12
12
20
7
11
7

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)

28
28
27
26
26
25
24
23
22
21
21
20
20
18
18
16
16
15
14
14
13
13
13
14

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

9
9
10
10
11
10
10
10
10
10
10
10
10
10
10
10
9
9
9
10
10
11
11
11

Dew Point (°C)

11
11
12
12
12
12
12
12
12
11
11
11
11
11
10
10
10
10
10
10
11
10
10
10

Relative Humidity (%)

74
75
77
78
78
79
79
80
82
82
82
80
79
78
78
78
78
80
79
80
79
75
72
68

Pressure (mb)

1012
1013
1013
1014
1014
1014
1015
1015
1016
1017
1017
1018
1018
1019
1019
1019
1019
1019
1019
1020
1020
1020
1021
1021

Ozone (du)

301
303
302
301
300
301
302
303
303
302
301
300
299
301
301
301
299
295
293
290
286
282
281
279

Tuesday 16

Waning Crescent 20%

01:23

17:39

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: 19:31, Transit: 13:15. Moon - Rise: 01:23, Set: 17:39. Civil Dark: 20:03 - 06:28. Nautical Dark: 20:42 - 05:49. Astro Dark: 21:23 - 05:09

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
99
99
98
99
99
100
100
100
89
94
53

Low Clouds (% Sky Obscured)

65
71
77
81
82
82
81
78
76
72
78
85
92
93
94
94
91
87
83
76
70
57
46
43

Medium Clouds (% Sky Obscured)

74
82
90
96
96
96
97
97
96
96
98
99
93
96
94
91
82
51
66
75
33
25
84
38

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
80
62
51
58
67
52
33
65
44
41
33
38
38
36

ISS Passover

Visibility (miles)

9
9
9
7
8
5
4
3
3
5
5
2
6
8
6
6
9
7
8
6
8
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
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
None
None
None
None
None
None

Precipitation Probability (%)

7
18
55
63
59
65
74
87
92
72
81
95
89
95
95
95
80
56
22
17
17
5
10
5

Precipitation Amount (mm)

0
0
0.2
0.2
0.2
0.3
0.3
0.5
0.6
0.4
0.4
0.6
0.4
0.7
1.1
1.1
0.6
0.3
0
0
0
0
0
0

Wind Speed/Direction (mph)

14
14
14
16
15
13
15
13
14
18
21
22
24
26
26
25
24
23
21
20
19
20
19
19

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

69
68
70
80
90
92
92
93
95
96
92
92
92
90
92
93
95
95
96
96
93
89
87
85

Pressure (mb)

1021
1021
1021
1020
1020
1019
1019
1018
1017
1017
1016
1015
1014
1013
1012
1012
1011
1011
1011
1011
1012
1012
1012
1013

Ozone (du)

276
275
274
274
272
272
270
269
267
267
266
264
265
265
265
265
266
266
267
267
267
265
263
264

Wednesday 17

Waning Crescent 12%

02:45

18:07

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: 19:29, Transit: 13:14. Moon - Rise: 02:45, Set: 18:07. Civil Dark: 20:01 - 06:29. Nautical Dark: 20:40 - 05:51. Astro Dark: 21:20 - 05:11

Total Clouds (% Sky Obscured)

95
91
99
99
99
100
100
100
100
100
100
100
100
100
100
100
100
99
99
99
100
100
100
100

Low Clouds (% Sky Obscured)

44
43
50
54
50
56
53
56
49
49
44
40
35
39
43
47
59
71
83
84
85
87
92
96

Medium Clouds (% Sky Obscured)

60
80
91
98
98
97
99
96
89
87
84
88
90
94
98
100
92
84
77
76
80
84
80
74

High Clouds (% Sky Obscured)

63
42
72
86
91
95
100
100
100
86
98
99
100
99
97
96
83
71
57
61
71
85
60
30

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

2
1
17
16
13
28
59
45
39
40
12
4
21
41
48
52
44
36
28
44
57
71
78
76

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

20
20
19
19
18
17
15
15
13
12
11
10
9
8
7
6
5
5
4
3
3
2
2
2

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

13
13
13
13
13
13
13
13
13
14
13
14
13
13
13
13
13
13
13
13
13
13
13
14

Relative Humidity (%)

79
78
81
82
83
81
86
87
90
92
92
93
90
89
89
89
90
92
92
90
93
93
95
95

Pressure (mb)

1013
1013
1014
1013
1014
1014
1014
1014
1014
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015

Ozone (du)

263
263
263
262
263
262
262
261
262
264
266
266
266
266
267
268
269
269
269
269
269
269
269
268

Thursday 18

Waning Crescent 6%

04:04

18:27

12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 OK
18 OK
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: 19:26, Transit: 13:14. Moon - Rise: 04:04, Set: 18:27. Civil Dark: 19:59 - 06:31. Nautical Dark: 20:37 - 05:52. Astro Dark: 21:17 - 05:12

Total Clouds (% Sky Obscured)

100
99
97
96
67
45
42
88
94
95
95
100
100
100
100
97
97
97
96
97
99
100
100
100

Low Clouds (% Sky Obscured)

100
97
94
89
67
45
42
65
58
51
51
55
55
62
73
80
79
78
77
79
80
81
81
81

Medium Clouds (% Sky Obscured)

64
58
37
20
8
3
2
1
1
0
0
1
1
9
23
43
42
31
26
27
24
25
30
30

High Clouds (% Sky Obscured)

0
1
1
2
2
2
2
16
44
65
75
80
85
85
71
72
47
27
7
23
44
68
80
90

ISS Passover

Visibility (miles)

8
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

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

Precipitation Probability (%)

65
53
39
16
9
4
0
1
2
3
10
10
9
9
10
11
18
21
24
21
20
21
29
33

Precipitation Amount (mm)

0.3
0.2
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

93
92
89
86
82
83
86
87
89
92
93
93
92
90
90
90
90
89
89
87
82
78
72
71

Pressure (mb)

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

Ozone (du)

267
266
267
267
268
268
269
269
270
271
271
272
272
272
273
274
275
275
275
275
274
274
274
274

Friday 19

Waning Crescent 6%

05:21

18:43

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: 07:05, Set: 19:24, Transit: 13:14. Moon - Rise: 05:21, Set: 18:43. Civil Dark: 19:57 - 06:32. Nautical Dark: 20:35 - 05:54. Astro Dark: 21:15 - 05:14

Total Clouds (% Sky Obscured)

100
100
99
99
94
93
97
98
99
99
99
99
99
99
99
100
100
100
100

Low Clouds (% Sky Obscured)

68
73
77
75
75
78
81
84
87
90
88
84
82
84
88
97
89
82
75

Medium Clouds (% Sky Obscured)

35
39
38
40
45
52
65
60
60
55
54
59
53
70
87
98
89
79
71

High Clouds (% Sky Obscured)

100
95
91
86
61
43
25
25
30
35
35
35
35
53
78
100
100
100
100

ISS Passover

Visibility (miles)

9
9
9
9
9
8
7
6
7
8
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

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

Precipitation Probability (%)

36
33
25
14
20
32
46
58
64
64
58
56
56
52
53
63
53
44
40

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

68
67
72
77
82
87
92
96
95
95
93
93
93
93
93
92
92
92
92

Pressure (mb)

1018
1018
1018
1017
1017
1016
1016
1015
1015
1015
1015
1014
1014
1014
1013
1013
1012
1012
1012

Ozone (du)

273
273
272
272
271
272
273
273
274
275
276
276
275
275
276
277
278
282
287

Forecast for Constantine, Cornwall, United Kingdom (50.12,-5.17)

Generated: 13/09/25 12:40:13. Forecast: 13/09/25 to 19/09/25. Timezone: UTC+1.00