Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 19

Waning Crescent 0%

09:15

15:34

21 OK
22 OK
23 OK
00 OK
01 OK
02 OK
03 OK
04 OK
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

Sun - Rise: 08:13, Set: 15:51, Transit: 12:02. Moon - Rise: 09:15, Set: 15:34. Civil Dark: 16:33 - 07:31. Nautical Dark: 17:17 - 06:46. Astro Dark: 17:59 - 06:05

Total Clouds (% Sky Obscured)

15
18
14
19
20
20
23
29
29
45
49
47
73
60
65
39
43
58
56
57
77
100
92
94

Low Clouds (% Sky Obscured)

15
18
14
19
20
20
23
29
29
45
49
47
68
60
65
39
43
58
56
57
60
75
73
78

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
4
32

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
39
99
78
70

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
0
0
0
0
0
0
0
0
0
6
3
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

94
96
96
94
96
94
94
93
94
96
94
96
96
94
91
90
88
90
91
93
94
93
94
93

Pressure (mb)

1016
1016
1016
1016
1015
1015
1014
1014
1013
1013
1013
1013
1013
1012
1012
1011
1010
1009
1009
1008
1008
1008
1007
1007

Ozone (du)

278
277
276
281
283
280
280
274
274
274
276
278
283
282
280
279
279
281
281
286
289
293
292
292

Saturday 20

New Moon 2%

09:55

16:42

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

Sun - Rise: 08:13, Set: 15:51, Transit: 12:02. Moon - Rise: 09:55, Set: 16:42. Civil Dark: 16:33 - 07:31. Nautical Dark: 17:18 - 06:47. Astro Dark: 17:59 - 06:05

Total Clouds (% Sky Obscured)

92
98
94
95
91
94
96
95
90
92
96
92
92
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

82
95
88
84
79
71
73
72
78
75
76
64
66
91
84
79
73
70
72
82
81
95
95
98

Medium Clouds (% Sky Obscured)

22
25
41
77
23
39
33
29
75
59
80
42
21
73
72
100
100
99
100
100
100
100
100
100

High Clouds (% Sky Obscured)

52
59
50
4
3
22
82
86
50
40
51
75
76
95
100
100
61
100
100
100
100
100
100
92

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
5
2
1
0

Fog (%)

0
0
0
0
0
0
0
0
1
6
22
0
0
6
0
0
0
1
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 (%)

0
1
3
5
2
3
1
1
1
1
2
10
2
0
2
1
5
20
34
64
95
95
95
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
1.3
1.1
1.2
1.3

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

96
96
91
88
94
96
94
93
94
94
94
94
96
96
96
93
91
95
98
96
98
98
98
98

Pressure (mb)

1007
1007
1006
1006
1006
1006
1006
1006
1006
1007
1007
1007
1008
1008
1008
1008
1007
1007
1007
1007
1006
1006
1006
1006

Ozone (du)

293
293
299
305
315
316
312
308
308
310
311
312
314
320
327
335
341
344
347
353
361
368
371
373

Sunday 21

Waxing Crescent 6%

10:23

17:57

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

Sun - Rise: 08:13, Set: 15:52, Transit: 12:03. Moon - Rise: 10:23, Set: 17:57. Civil Dark: 16:34 - 07:32. Nautical Dark: 17:18 - 06:47. Astro Dark: 18:00 - 06:06

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
92
97
84
75
77
90
100
100
100
100
100
98
97
97
97
97
97
94

Low Clouds (% Sky Obscured)

81
97
100
91
86
77
82
89
79
73
72
88
78
73
85
89
95
93
92
84
72
74
70
74

Medium Clouds (% Sky Obscured)

100
100
100
100
100
96
91
81
3
0
0
0
18
100
96
40
17
4
0
3
41
8
27
25

High Clouds (% Sky Obscured)

100
100
100
100
100
100
69
90
62
63
59
69
100
100
99
99
100
82
79
69
67
56
48
38

ISS Passover

Visibility (miles)

5
2
0
8
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

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
None
None
None

Precipitation Probability (%)

95
95
87
62
43
28
25
11
4
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

1.2
1.1
0.5
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

91
98
98
96
95
96
96
96
96
96
93
93
93
93
91
88
90
90
91
93
94
93
94
96

Pressure (mb)

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

Ozone (du)

373
374
374
372
371
370
371
370
370
371
373
374
376
378
380
383
385
386
386
385
384
383
382
379

Monday 22

Waxing Crescent 12%

10:44

19:17

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

Sun - Rise: 08:14, Set: 15:53, Transit: 12:03. Moon - Rise: 10:44, Set: 19:17. Civil Dark: 16:34 - 07:32. Nautical Dark: 17:19 - 06:48. Astro Dark: 18:01 - 06:06

Total Clouds (% Sky Obscured)

99
99
96
100
100
100
100
100
100
99
99
98
99
88
77
85
98
99
93
92
93
98
100
97

Low Clouds (% Sky Obscured)

75
75
76
72
72
62
62
63
75
84
82
97
88
75
77
82
87
77
65
65
67
74
79
81

Medium Clouds (% Sky Obscured)

10
24
23
29
58
88
80
73
65
60
60
65
63
48
18
37
66
70
64
58
43
72
77
53

High Clouds (% Sky Obscured)

44
53
60
72
84
100
69
43
15
16
17
18
14
15
4
2
3
19
2
13
17
11
13
18

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
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
8
11
11
11
12
15

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)

6
6
6
6
6
6
6
6
5
5
5
6
6
6
8
9
9
9
9
9
9
9
10
9

Chance of Frost

Temperature (°C)

6
6
5
5
5
5
5
5
5
5
5
5
5
6
6
6
6
6
6
5
5
5
5
5

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

94
94
94
94
94
94
93
93
94
94
93
93
91
90
90
88
88
90
93
96
96
98
96
94

Pressure (mb)

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

Ozone (du)

378
376
370
364
359
355
352
352
353
352
350
349
345
343
343
341
338
338
339
342
343
344
342
340

Tuesday 23

Waxing Crescent 19%

10:59

20:36

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

Sun - Rise: 08:14, Set: 15:53, Transit: 12:04. Moon - Rise: 10:59, Set: 20:36. Civil Dark: 16:35 - 07:33. Nautical Dark: 17:19 - 06:48. Astro Dark: 18:01 - 06:06

Total Clouds (% Sky Obscured)

95
96
94
96
98
100
97
94
91
92
93
94
75
43
37
39
46
54
60
66
73
74
75
75

Low Clouds (% Sky Obscured)

90
94
91
94
97
100
96
92
89
78
66
54
47
43
37
39
46
54
60
66
73
69
65
58

Medium Clouds (% Sky Obscured)

29
16
5
4
3
3
3
3
2
16
32
50
34
18
2
3
3
3
2
1
0
8
10
19

High Clouds (% Sky Obscured)

9
5
4
4
4
2
2
6
5
3
11
14
15
1
1
1
1
1
1
1
1
1
1
1

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 (%)

15
15
16
14
12
13
9
12
6
7
7
3
7
7
4
10
8
1
2
2
0
9
9
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)

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

Chance of Frost

Temperature (°C)

5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
4
4
3
3
3
3

Feels Like (°C)

2
1
1
1
1
1
1
1
1
0
-1
-1
-1
0
1
1
1
1
1
1
1
1
-1
-1

Dew Point (°C)

4
4
3
3
3
4
4
4
3
3
2
2
2
2
2
2
2
2
1
1
0
0
0
0

Relative Humidity (%)

94
91
86
86
88
90
90
90
85
86
79
80
80
83
85
83
82
82
80
80
80
82
82
83

Pressure (mb)

1022
1022
1023
1023
1024
1024
1025
1025
1026
1027
1027
1028
1029
1030
1030
1031
1031
1031
1031
1032
1032
1033
1033
1033

Ozone (du)

340
341
343
344
340
339
339
338
337
336
335
332
333
335
335
336
335
335
334
336
337
339
340
341

Wednesday 24

Waxing Crescent 28%

11:11

No Set

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

Sun - Rise: 08:14, Set: 15:54, Transit: 12:04. Moon - Rise: 11:11, Set: No Set. Civil Dark: 16:36 - 07:33. Nautical Dark: 17:20 - 06:49. Astro Dark: 18:02 - 06:07

Total Clouds (% Sky Obscured)

83
87
95
86
81
81
86
90
95
95
95
95
91
86
67
67
58
63
67
77
67
67
63
77

Low Clouds (% Sky Obscured)

63
70
80
80
76
76
70
72
70
72
70
68
73
75
67
67
58
63
67
77
67
62
62
62

Medium Clouds (% Sky Obscured)

19
15
14
24
32
50
50
34
10
5
5
5
5
10
15
38
41
52
54
70
67
52
30
11

High Clouds (% Sky Obscured)

1
1
1
0
0
0
0
0
0
0
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
Very Light Rain
Very Light Rain
Light Rain
Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

17
18
17
32
41
46
58
69
79
71
66
60
59
57
56
50
45
38
37
34
29
28
27
26

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

2
2
2
2
2
2
2
2
2
2
2
2
2
2
3
3
3
3
3
3
3
3
3
3

Feels Like (°C)

-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-2
-3
-3
-0
-1
-1
-1
-0
0
-2
-2

Dew Point (°C)

-0
0
-0
-0
0
-0
0
-0
-0
-0
-1
-1
-0
-1
-1
-1
-1
-1
-1
-1
-1
-0
-1
-1

Relative Humidity (%)

83
85
83
83
85
85
86
85
86
86
84
84
85
82
77
73
74
74
74
76
79
82
80
80

Pressure (mb)

1033
1033
1032
1032
1031
1031
1030
1030
1029
1029
1029
1029
1029
1028
1028
1027
1027
1027
1026
1026
1026
1026
1026
1026

Ozone (du)

342
342
341
340
340
340
340
340
340
341
340
339
338
338
337
336
336
335
334
334
335
335
335
334

Thursday 25

Waxing Crescent 39%

11:21

21:56

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

Sun - Rise: 08:15, Set: 15:55, Transit: 12:05. Moon - Rise: 11:21, Set: 21:56. Civil Dark: 16:36 - 07:33. Nautical Dark: 17:21 - 06:49. Astro Dark: 18:02 - 06:07

Total Clouds (% Sky Obscured)

77
77
77
82
83
88
92
96
100
99
98
97
97
97
97
98
98
99
96
93
88

Low Clouds (% Sky Obscured)

72
77
77
82
83
88
92
95
90
84
88
81
82
77
78
78
64
54
52
50
48

Medium Clouds (% Sky Obscured)

12
12
14
15
17
18
13
11
11
29
51
75
73
71
65
71
68
65
41
24
21

High Clouds (% Sky Obscured)

0
0
0
3
6
8
19
32
70
75
75
60
48
41
32
21
12
8
11
13
15

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 (%)

24
21
18
17
16
14
13
12
9
11
12
10
12
14
14
11
8
6
5
4
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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

3
3
3
2
2
2
2
2
2
2
2
3
3
3
3
4
4
4
4
3
3

Feels Like (°C)

-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-3
-3
-3
-4
-4
-4
-1
-1
-1
-1
-0

Dew Point (°C)

-1
-1
-1
-1
-1
-1
-1
-2
-2
-2
-3
-3
-3
-3
-3
-3
-2
-2
-2
-2
-1

Relative Humidity (%)

80
80
79
77
79
79
79
76
74
73
70
69
68
65
65
64
66
67
68
72
76

Pressure (mb)

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

Ozone (du)

334
335
336
337
336
336
335
334
332
331
332
333
335
336
337
337
337
337
336
336
337

Forecast for Oadby, Leicestershire, United Kingdom (52.60,-1.08)

Generated: 19/12/25 21:06:32. Forecast: 19/12/25 to 25/12/25. Timezone: UTC+0.00