Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 18

Waning Crescent 12%

02:19

18:15

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

Sun - Rise: 06:43, Set: 19:09, Transit: 12:56. Moon - Rise: 02:19, Set: 18:15. Civil Dark: 19:43 - 06:10. Nautical Dark: 20:23 - 05:30. Astro Dark: 21:05 - 04:48

Total Clouds (% Sky Obscured)

100
99
99
100
93
95
98
100
100
94
89
100
100
76
76
55
64
45
60
90
99
100
100
100

Low Clouds (% Sky Obscured)

89
95
93
100
86
90
80
96
94
89
87
77
70
63
76
55
64
45
60
58
75
70
76
69

Medium Clouds (% Sky Obscured)

49
37
30
22
17
4
2
5
5
3
3
3
3
0
0
0
4
6
21
24
1
6
14
6

High Clouds (% Sky Obscured)

0
1
0
1
3
48
76
97
67
9
5
61
52
21
20
2
56
45
60
69
98
100
100
100

ISS Passover

Visibility (miles)

9
9
6
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
7
1
3
3
0
2
3
12
1
2
2
1
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

93
95
95
96
95
95
95
90
86
81
71
74
70
65
69
68
71
79
86
90
95
96
96
96

Pressure (mb)

1017
1017
1016
1016
1017
1017
1017
1018
1018
1018
1018
1018
1018
1018
1018
1018
1019
1019
1019
1020
1020
1020
1020
1020

Ozone (du)

265
265
264
264
263
263
263
261
259
259
258
257
258
258
260
260
259
259
259
259
259
258
258
258

Friday 19

Waning Crescent 6%

03:41

18:28

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

Sun - Rise: 06:45, Set: 19:07, Transit: 12:56. Moon - Rise: 03:41, Set: 18:28. Civil Dark: 19:40 - 06:11. Nautical Dark: 20:20 - 05:32. Astro Dark: 21:02 - 04:50

Total Clouds (% Sky Obscured)

88
78
73
76
75
80
87
48
59
79
45
34
36
48
51
38
34
10
4
51
49
65
50
92

Low Clouds (% Sky Obscured)

70
78
72
74
73
75
81
45
39
32
39
32
29
37
39
30
28
6
3
33
44
42
27
27

Medium Clouds (% Sky Obscured)

3
32
19
19
56
50
11
3
1
0
0
0
0
1
1
0
0
0
0
0
0
14
13
21

High Clouds (% Sky Obscured)

88
71
65
47
9
50
43
20
34
49
15
12
36
48
45
35
21
10
2
24
28
30
2
86

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
7

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)

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

Chance of Frost

Temperature (°C)

15
15
15
15
15
15
16
16
18
19
20
21
22
23
23
22
21
19
18
17
16
15
14
14

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

96
96
96
96
96
96
92
85
74
67
62
54
48
43
43
48
55
63
69
69
69
68
67
67

Pressure (mb)

1020
1019
1019
1019
1019
1019
1019
1019
1019
1018
1018
1017
1017
1016
1016
1015
1015
1015
1015
1016
1016
1015
1015
1014

Ozone (du)

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

Saturday 20

Waning Crescent 2%

04:59

18:40

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

Sun - Rise: 06:46, Set: 19:04, Transit: 12:55. Moon - Rise: 04:59, Set: 18:40. Civil Dark: 19:38 - 06:13. Nautical Dark: 20:18 - 05:33. Astro Dark: 20:59 - 04:52

Total Clouds (% Sky Obscured)

92
100
69
100
69
81
79
91
90
97
100
100
100
100
95
98
100
93
88
83
77
68
62
67

Low Clouds (% Sky Obscured)

35
29
32
32
39
57
49
60
69
67
63
66
62
53
66
90
66
60
55
50
69
41
61
59

Medium Clouds (% Sky Obscured)

21
14
28
57
21
80
79
91
90
96
96
92
24
28
28
26
40
3
41
58
56
12
16
4

High Clouds (% Sky Obscured)

85
99
55
100
39
40
38
42
42
81
100
100
100
99
90
97
100
75
43
15
10
4
10
10

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 (%)

100
100
100
100
100
100
100
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
1
0
0
0
0
0
0
0
0
0
0
0
1
3
4
1
2
2
4
5
3
5
5

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)

4
5
4
4
3
3
3
5
6
9
9
8
10
12
14
13
12
11
11
12
13
14
13
13

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

68
69
70
70
66
68
67
63
59
57
58
64
61
52
54
54
58
68
73
76
84
90
92
84

Pressure (mb)

1014
1013
1013
1012
1011
1011
1011
1011
1010
1010
1010
1009
1009
1008
1007
1007
1007
1006
1006
1006
1006
1006
1006
1006

Ozone (du)

263
262
262
261
262
263
264
264
262
262
262
261
261
261
262
263
263
264
265
265
267
268
269
271

Sunday 21

New Moon 0%

06:14

18:49

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
19 Bad
20 Bad
21 OK
22 OK
23 OK
00 Good
01 Good

Sun - Rise: 06:48, Set: 19:02, Transit: 12:55. Moon - Rise: 06:14, Set: 18:49. Civil Dark: 19:36 - 06:15. Nautical Dark: 20:15 - 05:35. Astro Dark: 20:57 - 04:54

Total Clouds (% Sky Obscured)

69
71
77
80
93
91
70
71
78
82
81
65
55
48
53
56
58
57
52
41
48
23
18
17

Low Clouds (% Sky Obscured)

55
55
64
68
86
79
66
56
61
63
64
54
49
48
44
44
40
36
32
28
19
10
0
0

Medium Clouds (% Sky Obscured)

0
0
10
24
30
33
29
31
26
24
24
16
9
0
3
7
9
10
11
10
8
5
2
7

High Clouds (% Sky Obscured)

5
5
5
6
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
15
7
18
10

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 (%)

25
30
8
10
20
17
16
8
10
8
0
0
0
0
0
1
0
1
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)

14
16
17
17
16
19
16
15
16
15
14
14
13
13
12
10
8
6
4
4
3
3
3
3

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

10
12
11
10
9
7
7
7
5
4
4
4
3
3
3
4
5
6
6
6
6
6
6
6

Relative Humidity (%)

83
93
87
87
88
77
75
73
64
58
53
50
45
45
46
50
58
68
77
81
84
82
85
85

Pressure (mb)

1006
1005
1005
1006
1007
1008
1009
1010
1011
1012
1012
1012
1013
1013
1013
1013
1014
1014
1015
1016
1016
1017
1017
1017

Ozone (du)

273
274
276
277
278
279
280
281
281
282
282
283
285
287
289
290
292
294
295
294
295
296
299
299

Monday 22

Waxing Crescent 1%

07:28

18:59

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

Sun - Rise: 06:50, Set: 19:00, Transit: 12:55. Moon - Rise: 07:28, Set: 18:59. Civil Dark: 19:33 - 06:16. Nautical Dark: 20:13 - 05:37. Astro Dark: 20:54 - 04:56

Total Clouds (% Sky Obscured)

17
25
32
28
27
29
24
26
37
47
57
50
43
37
26
15
4
18
32
46
41
37
33
42

Low Clouds (% Sky Obscured)

0
1
15
23
27
29
24
26
37
47
57
46
35
24
17
10
4
18
32
46
41
37
33
27

Medium Clouds (% Sky Obscured)

12
15
11
6
0
0
0
0
0
0
0
4
7
9
10
12
4
11
6
1
1
0
0
5

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
1
6
12
20
12
8
4
4
2
0
7
14
21
20

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
8
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
1
3
6
23
26
30
26
22
23
21
15
13
9
2
2
2
1
1

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)

4
4
5
5
5
6
7
8
10
10
11
14
14
14
14
13
13
12
11
10
9
8
8
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

87
87
87
84
81
84
79
73
69
62
60
69
71
73
76
76
76
76
74
73
73
73
73
74

Pressure (mb)

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

Ozone (du)

303
305
306
307
306
306
307
308
310
311
311
311
311
310
310
310
310
310
310
310
311
309
308
307

Tuesday 23

Waxing Crescent 3%

08:40

19:09

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

Sun - Rise: 06:51, Set: 18:58, Transit: 12:54. Moon - Rise: 08:40, Set: 19:09. Civil Dark: 19:31 - 06:18. Nautical Dark: 20:10 - 05:39. Astro Dark: 20:51 - 04:57

Total Clouds (% Sky Obscured)

51
60
73
83
82
87
85
83
76
83
95
97
97
98
98
98
98
96
95
98
100
100
95
95

Low Clouds (% Sky Obscured)

22
20
25
25
26
36
47
58
52
46
40
45
50
55
50
44
39
59
80
98
94
89
79
71

Medium Clouds (% Sky Obscured)

12
23
27
34
40
19
9
9
14
14
30
49
53
57
63
74
60
55
45
45
30
20
20
20

High Clouds (% Sky Obscured)

17
18
34
62
82
67
40
12
40
68
95
96
95
95
98
98
95
85
76
61
38
18
1
2

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
Very Light Rain
None
None

Precipitation Probability (%)

0
0
12
12
4
25
32
33
33
36
36
38
36
31
37
30
20
35
45
52
53
56
58
51

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

4
3
3
4
4
5
3
2
1
2
2
3
2
1
0
1
1
3
3
5
6
6
6
7

Relative Humidity (%)

71
71
71
77
82
90
75
64
55
54
52
51
47
44
40
45
49
55
60
68
77
80
84
90

Pressure (mb)

1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1021
1021
1021
1020
1020
1020
1020
1020
1021
1021
1021
1021
1021
1021

Ozone (du)

308
309
310
310
311
311
312
313
315
314
314
314
314
314
314
314
313
312
311
310
309
308
307
306

Wednesday 24

Waxing Crescent 7%

09:53

19:21

Sun - Rise: 06:53, Set: 18:55, Transit: 12:54. Moon - Rise: 09:53, Set: 19:21. Civil Dark: 19:29 - 06:20. Nautical Dark: 20:08 - 05:40. Astro Dark: 20:49 - 04:59

Total Clouds (% Sky Obscured)

Low Clouds (% Sky Obscured)

Medium Clouds (% Sky Obscured)

High Clouds (% Sky Obscured)

ISS Passover

Visibility (miles)

Fog (%)

Precipitation Type

Precipitation Probability (%)

Precipitation Amount (mm)

Wind Speed/Direction (mph)

Chance of Frost

Temperature (°C)

Feels Like (°C)

Dew Point (°C)

Relative Humidity (%)

Pressure (mb)

Ozone (du)

Forecast for Great Missenden, Buckinghamshire, United Kingdom (51.70,-0.70)

Generated: 18/09/25 02:47:35. Forecast: 18/09/25 to 24/09/25. Timezone: UTC+1.00