Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 8

Waning Gibbous 77%

21:18

11:48

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

Sun - Rise: 07:57, Set: 15:53, Transit: 11:55. Moon - Rise: 21:18, Set: 11:48. Civil Dark: 16:33 - 07:17. Nautical Dark: 17:16 - 06:34. Astro Dark: 17:56 - 05:54

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
95
100
100
100
100
100
96
98
65
64
52
49
57
56

Low Clouds (% Sky Obscured)

83
84
97
85
87
87
85
85
96
81
93
97
82
91
98
80
75
73
57
64
52
49
36
40

Medium Clouds (% Sky Obscured)

55
82
94
100
100
100
100
100
97
74
78
88
51
71
82
69
30
98
65
42
52
49
57
38

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
64
100
100
97
99
96
45
50
5
3
19
2
27
56

ISS Passover

Visibility (miles)

9
9
9
9
9
6
5
2
2
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
Light Rain
Very Light Rain
None
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

35
65
52
42
62
95
95
95
95
76
71
20
39
43
38
29
18
22
8
18
15
1
1
8

Precipitation Amount (mm)

0
0.4
0.2
0
0.2
0.7
0.8
1.7
1
0.4
0.4
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

7
7
9
14
15
16
18
21
21
21
21
20
20
21
21
21
21
23
23
23
21
18
16
15

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

96
96
95
92
89
84
87
90
91
88
84
86
84
79
80
84
87
86
87
89
86
80
83
87

Pressure (mb)

1008
1008
1008
1007
1007
1006
1005
1004
1004
1003
1003
1003
1002
1001
1001
1000
1000
999
1000
1000
1002
1003
1005
1006

Ozone (du)

318
316
313
305
302
299
295
289
286
288
289
289
289
287
284
284
283
282
282
283
283
283
283
283

Tuesday 9

Waning Gibbous 67%

No Rise

12:02

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

Sun - Rise: 07:58, Set: 15:52, Transit: 11:55. Moon - Rise: No Rise, Set: 12:02. Civil Dark: 16:32 - 07:18. Nautical Dark: 17:16 - 06:35. Astro Dark: 17:56 - 05:54

Total Clouds (% Sky Obscured)

97
96
100
52
61
65
70
69
76
79
80
86
77
72
73
62
45
36
44
51
48
42
94
73

Low Clouds (% Sky Obscured)

41
40
45
52
59
63
68
67
70
73
74
79
74
69
71
62
45
36
44
46
48
42
42
44

Medium Clouds (% Sky Obscured)

3
4
0
0
2
3
0
0
1
14
0
8
1
0
0
0
0
0
0
2
0
0
6
15

High Clouds (% Sky Obscured)

32
46
100
18
61
65
55
65
65
50
45
40
35
55
52
1
0
0
0
0
0
0
84
20

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 (%)

0
0
1
0
0
0
0
0
0
0
0
0
1
0
2
5
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

8
8
8
8
8
8
8
8
8
8
8
8
9
9
9
9
8
8
8
7
7
7
7
7

Relative Humidity (%)

87
90
90
91
91
95
95
93
91
93
93
93
90
87
84
84
84
87
90
91
95
93
93
94

Pressure (mb)

1007
1008
1008
1008
1009
1010
1010
1010
1011
1011
1012
1013
1014
1014
1014
1015
1015
1016
1017
1019
1019
1020
1020
1021

Ozone (du)

282
282
282
282
284
283
284
288
292
294
295
297
300
302
303
309
313
315
314
313
313
310
310
311

Wednesday 10

Waning Gibbous 57%

22:38

12:14

22 Bad
23 Bad
00 OK
01 Bad
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

Sun - Rise: 07:59, Set: 15:52, Transit: 11:56. Moon - Rise: 22:38, Set: 12:14. Civil Dark: 16:32 - 07:19. Nautical Dark: 17:16 - 06:36. Astro Dark: 17:56 - 05:55

Total Clouds (% Sky Obscured)

96
96
36
64
68
41
41
62
61
56
57
65
84
92
91
94
81
93
90
77
85
93
100
98

Low Clouds (% Sky Obscured)

43
39
36
50
47
41
41
62
61
56
57
65
76
87
88
92
75
86
78
63
67
73
80
82

Medium Clouds (% Sky Obscured)

5
0
0
3
18
0
0
0
0
0
0
0
0
0
0
0
69
75
65
65
69
78
86
84

High Clouds (% Sky Obscured)

76
68
4
21
3
3
2
8
9
2
0
2
54
60
64
65
59
45
25
29
53
62
85
79

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
2

Fog (%)

0
0
0
0
0
0
0
5
11
13
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
Light Rain
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
4
36
60
43

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
0.4
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

93
93
93
91
90
91
93
93
94
96
96
98
98
95
95
93
91
93
95
95
96
95
96
98

Pressure (mb)

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

Ozone (du)

309
304
303
303
303
302
301
301
301
300
302
303
301
301
303
304
304
306
309
311
312
311
308
304

Thursday 11

Third Quarter 46%

23:54

12:25

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

Sun - Rise: 08:00, Set: 15:52, Transit: 11:56. Moon - Rise: 23:54, Set: 12:25. Civil Dark: 16:32 - 07:20. Nautical Dark: 17:16 - 06:37. Astro Dark: 17:57 - 05:56

Total Clouds (% Sky Obscured)

96
94
96
98
100
99
98
97
97
99
100
99
99
99
98
99
99
100
100
100
98
99
100
96

Low Clouds (% Sky Obscured)

83
83
85
87
88
86
85
82
82
81
82
82
82
83
76
79
71
48
26
13
20
17
33
33

Medium Clouds (% Sky Obscured)

64
68
23
55
48
74
76
86
79
95
98
98
97
72
60
97
59
52
72
85
70
74
99
96

High Clouds (% Sky Obscured)

72
64
69
88
100
84
69
56
42
29
20
31
26
37
55
75
87
92
94
100
74
91
100
72

ISS Passover

Visibility (miles)

0
0
0
3
4
8
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
Very Light Rain
Light Rain
Light Rain
None
None
None
None
None
None

Precipitation Probability (%)

39
6
2
15
7
7
2
3
5
4
3
5
14
18
42
66
84
67
43
12
4
1
0
5

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.7
0.4
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

98
98
98
96
96
96
91
91
93
93
95
91
91
88
83
81
82
82
84
87
85
88
90
88

Pressure (mb)

1013
1013
1012
1012
1012
1012
1011
1011
1011
1011
1011
1012
1012
1012
1012
1013
1013
1014
1015
1015
1016
1017
1017
1018

Ozone (du)

303
304
305
307
309
308
308
309
310
311
311
312
313
316
316
317
319
318
320
322
325
327
330
332

Friday 12

Waning Crescent 36%

01:07

12:35

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

Sun - Rise: 08:01, Set: 15:52, Transit: 11:57. Moon - Rise: 01:07, Set: 12:35. Civil Dark: 16:33 - 07:21. Nautical Dark: 17:16 - 06:38. Astro Dark: 17:57 - 05:57

Total Clouds (% Sky Obscured)

92
87
63
39
15
18
22
30
28
23
13
18
28
38
51
64
77
81
85
90
79
69
59
65

Low Clouds (% Sky Obscured)

37
42
32
21
5
8
16
24
19
18
9
18
28
38
44
50
57
66
75
84
75
65
56
63

Medium Clouds (% Sky Obscured)

91
87
63
39
15
18
22
30
28
23
13
18
28
33
45
48
49
40
34
24
13
6
1
9

High Clouds (% Sky Obscured)

47
20
20
10
15
15
15
15
20
4
13
13
0
0
1
2
3
2
1
0
11
25
34
36

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 (%)

6
4
2
2
1
0
0
0
0
0
8
3
3
7
23
24
18
10
3
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)

4
4
5
5
5
5
5
5
5
5
6
6
7
9
11
11
11
11
11
11
11
11
11
12

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

4
4
4
4
4
3
3
2
3
3
3
3
3
4
4
5
6
6
7
6
7
6
6
6

Dew Point (°C)

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

Relative Humidity (%)

88
86
86
86
85
85
85
83
88
91
93
94
93
88
85
85
88
88
90
91
93
94
93
94

Pressure (mb)

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

Ozone (du)

331
330
329
328
327
329
332
338
351
359
366
378
391
398
402
395
388
381
373
365
357
353
349
345

Saturday 13

Waning Crescent 27%

02:19

12:45

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

Sun - Rise: 08:02, Set: 15:52, Transit: 11:57. Moon - Rise: 02:19, Set: 12:45. Civil Dark: 16:33 - 07:22. Nautical Dark: 17:16 - 06:39. Astro Dark: 17:57 - 05:58

Total Clouds (% Sky Obscured)

72
78
73
67
62
68
73
81
79
81
82
85
85
82
84
88
93
95
97
100
100
100
100
100

Low Clouds (% Sky Obscured)

71
78
73
67
60
63
68
73
76
78
80
80
80
78
82
86
91
91
92
93
92
91
90
93

Medium Clouds (% Sky Obscured)

17
25
40
47
50
50
46
42
38
24
4
4
3
2
2
2
2
2
2
4
36
69
100
100

High Clouds (% Sky Obscured)

39
41
38
31
33
20
16
12
9
7
5
5
5
5
5
5
5
33
67
100
100
100
100
83

ISS Passover

Visibility (miles)

9
9
9
9
9
9
7
4
2
4
7
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
0
0
0
1
0
1
5
7
8
8
5
10
8
2
5
8
5
37

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

Chance of Frost

Temperature (°C)

7
7
7
7
7
7
7
7
7
8
8
8
8
9
9
9
9
9
8
9
9
9
9
9

Feels Like (°C)

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

Dew Point (°C)

6
6
6
6
6
6
7
7
7
7
7
8
8
8
8
8
8
7
7
7
7
7
7
7

Relative Humidity (%)

93
93
91
94
94
94
96
96
98
98
96
96
96
95
93
91
91
91
90
88
88
87
85
82

Pressure (mb)

1022
1021
1021
1021
1020
1020
1020
1019
1019
1019
1019
1018
1018
1017
1017
1016
1016
1015
1014
1014
1013
1012
1012
1011

Ozone (du)

340
335
331
328
325
322
319
317
315
315
316
317
316
315
314
313
312
311
308
305
302
299
296
293

Sunday 14

Waning Crescent 19%

03:31

12:58

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

Sun - Rise: 08:03, Set: 15:53, Transit: 11:58. Moon - Rise: 03:31, Set: 12:58. Civil Dark: 16:33 - 07:23. Nautical Dark: 17:16 - 06:39. Astro Dark: 17:57 - 05:58

Total Clouds (% Sky Obscured)

100
100
95
90
84
90
95
100
90
79
70
78
84
91
94
97
100
100
100
100

Low Clouds (% Sky Obscured)

96
98
94
90
84
84
85
85
82
79
70
78
84
87
88
91
94
94
95
96

Medium Clouds (% Sky Obscured)

100
100
91
79
64
73
88
100
90
79
70
78
84
91
88
92
100
100
99
99

High Clouds (% Sky Obscured)

69
63
58
51
50
55
70
87
72
62
55
55
50
35
50
73
100
99
97
95

ISS Passover

Visibility (miles)

8
6
4
4
4
3
5
7
9
8
6
5
5
4
4
6
7
9
9
9

Fog (%)

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

Precipitation Probability (%)

67
95
95
95
94
82
80
80
88
95
95
95
95
95
95
90
74
62
52
44

Precipitation Amount (mm)

0.3
0.7
0.7
0.8
0.7
0.5
0.5
0.6
0.6
0.8
1
0.9
0.9
0.9
0.7
0.6
0.4
0.3
0.2
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

7
7
8
8
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Relative Humidity (%)

85
87
90
91
91
93
93
95
95
96
95
96
95
95
95
95
91
91
91
91

Pressure (mb)

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

Ozone (du)

293
292
292
291
290
290
291
292
293
294
294
295
295
295
295
294
292
291
291
292

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

Generated: 08/12/25 22:01:05. Forecast: 08/12/25 to 14/12/25. Timezone: UTC+0.00