Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 14

Third Quarter 53%

22:17

15:56

04 Good
05 OK
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
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad

Sun - Rise: 06:34, Set: 19:16, Transit: 12:55. Moon - Rise: 22:17, Set: 15:56. Civil Dark: 19:50 - 06:00. Nautical Dark: 20:31 - 05:19. Astro Dark: 21:15 - 04:35

Total Clouds (% Sky Obscured)

7
21
40
45
100
100
100
100
100
100
100
100
100
100
98
85
69
70
48
59
65
61
68
45

Low Clouds (% Sky Obscured)

7
21
40
37
24
0
0
4
2
31
31
39
80
86
96
69
49
65
48
59
65
61
59
43

Medium Clouds (% Sky Obscured)

0
0
0
0
11
76
100
100
100
100
100
100
100
100
98
84
15
1
0
0
0
0
10
3

High Clouds (% Sky Obscured)

7
21
40
45
100
100
100
100
100
100
83
97
100
100
1
35
1
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
4
2
3
6
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
Light Rain
Moderate Rain
Light Rain
Light Rain
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
6
35
42
59
95
95
95
95
62
29
15
4
3
0
17
2

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
1.8
3.9
1.1
0.9
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

7
7
7
6
6
8
9
10
12
12
12
10
13
15
18
17
19
20
20
20
20
22
21
23

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

90
91
93
91
84
73
68
64
56
55
54
65
65
76
86
92
92
85
82
81
81
79
75
78

Pressure (mb)

1011
1011
1011
1012
1012
1012
1012
1011
1011
1010
1009
1007
1006
1004
1002
1000
999
999
999
1000
999
1000
1000
1000

Ozone (du)

287
284
280
277
274
270
268
264
261
260
258
257
259
261
262
261
267
272
275
277
280
284
285
286

Monday 15

Waning Crescent 41%

23:28

16:53

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

Sun - Rise: 06:35, Set: 19:14, Transit: 12:55. Moon - Rise: 23:28, Set: 16:53. Civil Dark: 19:48 - 06:01. Nautical Dark: 20:29 - 05:21. Astro Dark: 21:12 - 04:37

Total Clouds (% Sky Obscured)

51
59
68
58
58
48
70
24
82
65
63
96
67
62
60
72
68
65
61
53
53
50
40
40

Low Clouds (% Sky Obscured)

51
59
66
56
58
43
63
24
33
31
47
53
56
51
60
72
62
59
55
48
48
44
37
36

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
17
0
37
33
30
72
38
27
2
2
2
2
2
0
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
2
2
2
2
2
2
3
2
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
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
0
0
0
0
0

Precipitation Type

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

Precipitation Probability (%)

7
0
0
0
0
0
0
11
18
23
29
46
50
30
19
0
0
3
5
2
2
0
2
3

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

23
24
24
23
24
25
25
26
27
27
27
26
24
24
23
21
21
22
22
22
22
22
21
21

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

11
10
9
8
9
9
9
9
10
10
11
10
9
9
10
10
10
9
8
8
7
7
6
6

Relative Humidity (%)

78
74
69
67
70
68
65
60
59
58
62
58
59
62
66
68
69
67
63
64
65
64
59
61

Pressure (mb)

1000
1000
1000
1001
1001
1002
1002
1002
1002
1002
1002
1003
1003
1003
1004
1005
1005
1006
1007
1007
1008
1008
1009
1009

Ozone (du)

290
290
291
294
295
297
301
303
304
307
307
304
304
304
304
304
303
303
304
304
305
306
306
313

Tuesday 16

Waning Crescent 30%

00:49

17:31

04 OK
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
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad

Sun - Rise: 06:37, Set: 19:11, Transit: 12:54. Moon - Rise: 00:49, Set: 17:31. Civil Dark: 19:45 - 06:03. Nautical Dark: 20:26 - 05:22. Astro Dark: 21:09 - 04:39

Total Clouds (% Sky Obscured)

40
48
45
47
53
53
72
92
88
96
89
94
100
94
87
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

36
46
42
41
48
48
58
53
51
21
21
39
21
29
18
0
0
16
30
64
75
85
88
92

Medium Clouds (% Sky Obscured)

7
1
0
0
0
0
0
27
25
18
4
22
9
40
77
74
72
74
90
98
100
100
99
98

High Clouds (% Sky Obscured)

13
2
0
0
0
0
6
26
34
54
85
81
100
81
58
100
100
100
100
73
100
100
100
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
7
8

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
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

3
3
4
9
5
0
12
1
0
0
0
0
0
0
0
0
0
11
45
60
75
71
80
95

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.4
0.4
0.4
0.9

Wind Speed/Direction (mph)

20
19
20
20
19
18
19
18
17
18
18
17
17
16
13
11
11
10
11
10
9
9
9
10

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

6
5
6
6
7
8
9
11
11
12
12
14
13
13
12
12
11
11
10
10
10
10
11
10

Dew Point (°C)

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

Relative Humidity (%)

62
65
66
66
70
72
66
63
62
54
51
50
52
50
54
58
62
67
70
74
76
79
83
86

Pressure (mb)

1010
1010
1010
1011
1012
1013
1013
1014
1014
1014
1015
1014
1014
1015
1015
1015
1015
1015
1015
1015
1015
1014
1014
1013

Ozone (du)

305
300
300
303
300
299
301
303
295
288
284
281
276
273
271
269
268
267
266
264
262
260
260
260

Wednesday 17

Waning Crescent 20%

02:14

17:56

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
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad

Sun - Rise: 06:39, Set: 19:09, Transit: 12:54. Moon - Rise: 02:14, Set: 17:56. Civil Dark: 19:43 - 06:05. Nautical Dark: 20:24 - 05:24. Astro Dark: 21:06 - 04:41

Total Clouds (% Sky Obscured)

100
100
100
94
89
83
87
89
93
94
95
97
62
94
92
100
98
97
96
78
87
76
81
79

Low Clouds (% Sky Obscured)

95
98
100
91
80
69
75
80
87
84
81
79
62
64
60
61
62
64
54
42
33
29
31
37

Medium Clouds (% Sky Obscured)

98
98
97
80
56
40
40
6
2
25
19
27
43
75
73
44
54
4
43
4
39
4
2
0

High Clouds (% Sky Obscured)

92
100
97
83
63
36
31
24
16
39
36
48
62
74
85
100
76
93
81
70
56
72
79
79

ISS Passover

Visibility (miles)

5
5
9
9
8
8
6
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

Light Rain
Light Rain
Light Rain
Very 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
None

Precipitation Probability (%)

95
95
92
66
95
88
56
5
2
6
4
2
1
7
3
0
2
0
0
0
0
0
0
0

Precipitation Amount (mm)

1
0.9
0.5
0.3
0.7
0.7
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

10
10
10
12
14
15
17
18
19
20
20
20
20
20
19
17
16
17
17
17
16
16
15
14

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

89
90
92
90
90
92
90
86
88
86
86
81
80
76
78
77
81
83
82
83
83
83
86
89

Pressure (mb)

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

Ozone (du)

260
259
260
260
260
259
259
260
261
261
261
261
261
261
260
260
259
259
259
261
261
263
264
264

Thursday 18

Waning Crescent 12%

03:36

18:14

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
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad

Sun - Rise: 06:40, Set: 19:07, Transit: 12:54. Moon - Rise: 03:36, Set: 18:14. Civil Dark: 19:41 - 06:07. Nautical Dark: 20:21 - 05:26. Astro Dark: 21:04 - 04:43

Total Clouds (% Sky Obscured)

86
87
97
84
66
52
62
70
77
83
91
99
100
100
99
81
77
76
80
83
86
88
90
92

Low Clouds (% Sky Obscured)

36
29
21
26
29
35
41
43
51
49
46
46
63
83
99
62
65
67
67
67
67
67
68
66

Medium Clouds (% Sky Obscured)

2
3
37
27
13
18
33
17
23
74
46
99
96
48
40
28
17
9
11
13
16
11
6
1

High Clouds (% Sky Obscured)

84
85
96
75
50
30
20
16
16
15
20
30
1
1
0
1
2
3
12
21
27
33
40
50

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
8
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
3
14
6
19
9
4
3
23
22
17
25
30
32
28
23
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

89
90
89
89
86
80
69
65
66
70
73
66
73
78
83
89
90
92
92
92
90
92
92
92

Pressure (mb)

1012
1012
1013
1013
1014
1014
1015
1015
1015
1016
1015
1015
1015
1015
1015
1015
1013
1013
1014
1014
1014
1014
1015
1015

Ozone (du)

263
262
262
263
263
264
264
264
265
264
265
265
265
263
263
263
263
263
263
264
264
265
265
265

Friday 19

Waning Crescent 6%

No Rise

18:27

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
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad

Sun - Rise: 06:42, Set: 19:04, Transit: 12:53. Moon - Rise: No Rise, Set: 18:27. Civil Dark: 19:38 - 06:08. Nautical Dark: 20:19 - 05:28. Astro Dark: 21:01 - 04:46

Total Clouds (% Sky Obscured)

91
87
80
77
82
78
79
73
82
85
90
98
99
99
100
100
100
100
100
100
100
100
100
99

Low Clouds (% Sky Obscured)

59
52
45
55
65
78
79
73
82
75
65
52
47
46
40
24
21
13
15
16
16
32
50
66

Medium Clouds (% Sky Obscured)

24
48
60
51
41
38
25
22
22
28
39
61
63
69
66
55
38
42
60
79
96
91
89
87

High Clouds (% Sky Obscured)

38
27
16
25
32
39
54
67
79
85
90
96
98
99
100
100
100
100
99
98
96
97
97
98

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

Precipitation Probability (%)

17
16
13
16
22
32
45
50
51
37
25
12
14
14
6
6
4
1
1
0
0
9
5
3

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

95
92
90
90
80
73
66
57
50
45
44
42
40
43
46
50
52
54
57
62
68
74
75
77

Pressure (mb)

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

Ozone (du)

265
265
266
266
266
265
264
265
265
265
265
265
265
265
265
266
266
266
267
267
267
268
267
266

Saturday 20

Waning Crescent 2%

04:55

18:37

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
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad

Sun - Rise: 06:44, Set: 19:02, Transit: 12:53. Moon - Rise: 04:55, Set: 18:37. Civil Dark: 19:36 - 06:10. Nautical Dark: 20:16 - 05:30. Astro Dark: 20:58 - 04:48

Total Clouds (% Sky Obscured)

96
95
95
98
100
100
100
100
99
100
100
100
95
86
74
68
67
69
73
79
87

Low Clouds (% Sky Obscured)

61
56
51
52
59
64
65
65
70
59
48
37
37
36
33
40
51
66
58
50
41

Medium Clouds (% Sky Obscured)

79
70
57
66
69
72
77
83
90
93
97
100
93
86
74
55
49
39
45
52
57

High Clouds (% Sky Obscured)

86
75
61
78
90
100
97
95
93
96
98
100
78
50
5
4
4
3
2
2
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

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

Precipitation Probability (%)

6
11
17
35
45
47
32
33
38
46
44
35
22
8
0
1
0
0
2
3
1

Precipitation Amount (mm)

0
0
0
0
0
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

10
10
10
10
11
13
14
14
14
15
14
13
13
13
13
13
13
13
13
14
14

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

12
12
12
13
13
13
13
12
12
12
12
12
12
12
12
13
13
12
12
13
13

Relative Humidity (%)

77
79
80
85
78
73
70
64
60
57
58
59
59
63
68
72
72
72
73
77
82

Pressure (mb)

1013
1013
1012
1011
1011
1010
1010
1009
1009
1008
1007
1007
1006
1005
1005
1005
1004
1004
1004
1003
1003

Ozone (du)

266
265
265
265
264
264
264
264
263
262
262
261
261
262
264
265
267
270
272
276
281

Forecast for Bourn, Cambridgeshire, United Kingdom (52.20,-0.05)

Generated: 14/09/25 04:45:55. Forecast: 14/09/25 to 20/09/25. Timezone: UTC+1.00