Clear Outside v1.0 - International Weather Forecasts For Astronomers

Saturday 13

Waning Crescent 27%

02:24

12:46

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
12 Bad
13 Bad
14 Bad
15 Bad

Sun - Rise: 08:12, Set: 15:49, Transit: 12:00. Moon - Rise: 02:24, Set: 12:46. Civil Dark: 16:31 - 07:30. Nautical Dark: 17:16 - 06:45. Astro Dark: 17:58 - 06:03

Total Clouds (% Sky Obscured)

61
70
76
100
100
100
100
100
100
100
99
95
99
100
99
100
100
99
99
83
100
100
92
100

Low Clouds (% Sky Obscured)

44
44
50
50
51
63
64
62
61
53
54
64
88
79
69
74
83
80
78
54
44
41
57
69

Medium Clouds (% Sky Obscured)

26
70
76
69
23
68
87
79
77
66
44
44
55
58
74
83
56
50
41
48
69
61
88
95

High Clouds (% Sky Obscured)

61
70
76
100
100
100
100
100
100
100
92
71
66
94
95
70
94
74
55
39
93
100
71
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
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
Very Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
5
5
5
5
15
34
40
46
9
25
23
7
8
29
30
11
1
5
9
18

Precipitation Amount (mm)

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
0

Wind Speed/Direction (mph)

12
13
14
17
16
17
17
17
17
17
17
17
17
17
17
17
17
17
17
18
19
19
19
19

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

1
1
1
1
1
1
1
1
1
1
1
2
1
1
2
2
2
2
2
3
3
3
3
3

Dew Point (°C)

5
5
5
5
5
5
5
4
4
4
4
4
5
5
5
5
5
5
5
6
5
5
5
5

Relative Humidity (%)

91
90
88
88
87
88
87
84
84
82
84
84
84
84
85
85
85
85
82
82
80
77
76
74

Pressure (mb)

1023
1022
1022
1022
1021
1021
1021
1020
1020
1019
1019
1018
1018
1017
1016
1016
1016
1016
1015
1015
1014
1012
1012
1011

Ozone (du)

317
314
312
308
305
303
304
303
302
301
302
306
305
300
298
295
293
291
290
289
287
285
283
283

Sunday 14

Waning Crescent 19%

03:38

12:57

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
12 Bad
13 Bad
14 Bad
15 Bad

Sun - Rise: 08:13, Set: 15:49, Transit: 12:01. Moon - Rise: 03:38, Set: 12:57. Civil Dark: 16:31 - 07:31. Nautical Dark: 17:16 - 06:46. Astro Dark: 17:58 - 06:04

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
99
100
100
100
99
99
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

68
80
86
87
84
74
79
79
78
78
82
87
91
89
81
76
87
84
85
77
63
91
81
100

Medium Clouds (% Sky Obscured)

98
94
71
79
95
98
96
98
100
100
99
97
93
89
74
100
95
10
5
35
100
99
100
98

High Clouds (% Sky Obscured)

98
100
97
93
100
99
89
47
56
90
68
48
80
100
100
100
100
100
100
100
87
89
59
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
7
9
9
9
5
4
5
5
4
4
8
9
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
None
None
None
None
None
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
None
None
None
None
None
Very Light Rain

Precipitation Probability (%)

31
21
15
13
14
20
37
50
62
59
65
78
91
79
76
80
82
72
47
52
33
41
57
68

Precipitation Amount (mm)

0
0
0
0
0
0
0
0.3
0.4
0.4
0.4
0.6
0.7
0.5
0.4
0.5
0.7
0.4
0
0
0
0
0
0.3

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

9
9
9
9
9
9
10
10
10
10
10
10
10
10
9
9
9
9
9
9
10
10
10
10

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

76
80
78
77
80
82
81
82
82
82
84
87
88
91
90
91
90
93
91
88
88
87
85
85

Pressure (mb)

1010
1010
1009
1009
1008
1008
1007
1007
1006
1005
1005
1004
1004
1003
1003
1003
1003
1003
1003
1003
1002
1002
1001
1001

Ozone (du)

281
280
281
281
277
276
276
275
276
278
278
280
281
283
283
286
286
286
289
290
291
293
294
297

Monday 15

Waning Crescent 12%

04:53

13:11

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
12 Bad
13 Bad
14 Bad
15 Bad

Sun - Rise: 08:13, Set: 15:49, Transit: 12:01. Moon - Rise: 04:53, Set: 13:11. Civil Dark: 16:31 - 07:31. Nautical Dark: 17:16 - 06:47. Astro Dark: 17:58 - 06:04

Total Clouds (% Sky Obscured)

99
100
99
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
99
100
82

Low Clouds (% Sky Obscured)

86
88
96
100
100
66
86
75
91
100
100
25
46
30
20
20
5
11
24
31
28
26
22
22

Medium Clouds (% Sky Obscured)

97
99
97
95
100
100
100
100
100
100
100
88
99
100
100
100
100
100
92
100
67
97
100
78

High Clouds (% Sky Obscured)

0
1
0
0
24
42
47
100
100
88
65
65
65
67
95
75
95
65
100
57
52
26
40
3

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

60
74
90
95
95
82
88
80
85
95
95
72
60
91
95
70
36
4
0
0
0
0
0
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

12
14
14
15
15
13
13
12
14
11
9
6
2
4
4
11
11
10
10
8
7
7
7
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

6
7
7
6
6
5
5
4
3
4
5
6
7
6
6
1
-1
1
1
3
4
5
4
3

Dew Point (°C)

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

Relative Humidity (%)

90
91
93
88
88
91
90
87
87
90
93
95
95
96
96
90
90
86
85
82
76
77
82
85

Pressure (mb)

1001
1001
1001
1001
1001
1002
1002
1003
1003
1003
1004
1005
1005
1005
1006
1008
1009
1010
1011
1012
1013
1013
1014
1014

Ozone (du)

299
301
301
300
299
300
300
301
298
293
289
286
286
284
286
289
297
305
309
314
321
326
331
334

Tuesday 16

Waning Crescent 7%

06:08

13:30

16 Bad
17 OK
18 OK
19 OK
20 OK
21 OK
22 OK
23 OK
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

Sun - Rise: 08:14, Set: 15:50, Transit: 12:02. Moon - Rise: 06:08, Set: 13:30. Civil Dark: 16:31 - 07:32. Nautical Dark: 17:16 - 06:47. Astro Dark: 17:58 - 06:05

Total Clouds (% Sky Obscured)

69
27
20
18
20
33
38
39
57
76
88
96
97
100
91
100
100
100
100
100
100
100
100
99

Low Clouds (% Sky Obscured)

23
23
20
18
20
25
25
28
31
32
33
37
38
40
48
49
52
54
64
67
77
99
91
99

Medium Clouds (% Sky Obscured)

57
7
2
0
0
0
0
0
14
26
41
50
88
73
80
93
100
99
86
96
95
93
93
84

High Clouds (% Sky Obscured)

33
6
0
0
0
7
10
14
27
49
55
76
71
100
80
100
100
91
81
71
71
70
70
58

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

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
1
24
53
92
95
89
82
62
40
27
24

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.7
0.7
0.6
0.6
0.3
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

88
90
89
91
89
88
88
86
89
91
91
91
93
93
93
93
93
91
86
80
76
75
75
78

Pressure (mb)

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

Ozone (du)

346
359
356
352
338
334
326
319
314
312
308
305
302
300
299
299
298
297
296
296
295
292
289
287

Wednesday 17

Waning Crescent 3%

07:21

13:58

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
12 Bad
13 Bad
14 Bad
15 Bad

Sun - Rise: 08:15, Set: 15:50, Transit: 12:02. Moon - Rise: 07:21, Set: 13:58. Civil Dark: 16:32 - 07:33. Nautical Dark: 17:16 - 06:48. Astro Dark: 17:59 - 06:06

Total Clouds (% Sky Obscured)

99
98
93
88
83
88
93
100
98
95
93
85
77
68
69
85
100
98
94
87
91
96
100
100

Low Clouds (% Sky Obscured)

97
96
89
81
73
64
56
49
53
58
68
60
55
50
61
68
76
82
84
87
89
95
100
96

Medium Clouds (% Sky Obscured)

95
95
86
23
5
20
58
59
62
60
75
58
46
25
49
61
69
61
57
53
52
51
45
36

High Clouds (% Sky Obscured)

47
50
7
4
5
57
84
76
65
57
30
1
20
18
51
62
68
67
74
74
85
95
100
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
8
8
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
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

25
37
38
34
15
11
10
5
11
19
28
38
28
8
8
7
1
1
2
6
38
78
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
0
0.5
1
0.8

Wind Speed/Direction (mph)

18
18
18
17
16
15
14
13
13
13
12
12
12
11
11
9
9
9
11
14
17
18
20
21

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

81
82
81
81
81
81
82
81
82
85
90
91
91
88
85
87
87
87
87
87
87
85
84
84

Pressure (mb)

1011
1011
1011
1011
1011
1011
1011
1011
1011
1011
1011
1011
1011
1011
1011
1011
1010
1010
1008
1007
1006
1004
1002
1000

Ozone (du)

288
286
286
289
288
287
285
287
294
296
299
298
293
287
285
284
284
283
282
280
278
278
277
277

Thursday 18

Waning Crescent 1%

08:26

14:38

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
12 Bad
13 Bad
14 Bad
15 Bad

Sun - Rise: 08:15, Set: 15:50, Transit: 12:03. Moon - Rise: 08:26, Set: 14:38. Civil Dark: 16:32 - 07:33. Nautical Dark: 17:17 - 06:48. Astro Dark: 17:59 - 06:06

Total Clouds (% Sky Obscured)

100
100
100
100
100
86
69
50
56
50
57
71
85
99
90
80
73
60
53
42
65
79
92
80

Low Clouds (% Sky Obscured)

92
88
83
78
74
59
46
33
38
46
54
58
62
54
46
34
31
36
46
42
62
74
82
73

Medium Clouds (% Sky Obscured)

27
18
45
72
100
86
69
50
50
45
39
54
73
94
70
48
26
15
7
0
19
38
56
52

High Clouds (% Sky Obscured)

100
100
92
84
68
65
54
43
42
41
35
45
61
83
60
37
20
21
16
9
6
3
0
0

ISS Passover

Visibility (miles)

9
9
9
9
8
7
8
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
Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

95
95
95
88
63
66
68
66
53
38
4
1
2
3
11
17
15
16
15
5
14
14
12
17

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

84
84
84
84
85
87
87
85
85
84
82
81
81
82
82
82
83
82
82
81
79
82
84
85

Pressure (mb)

999
998
997
996
996
995
995
995
995
996
996
997
997
998
999
1000
1001
1002
1003
1004
1005
1005
1006
1007

Ozone (du)

276
276
276
276
277
278
280
283
285
294
303
312
313
314
316
325
334
343
354
365
375
377
379
380

Friday 19

Waning Crescent 0%

09:20

15:33

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: 08:16, Set: 15:51, Transit: 12:03. Moon - Rise: 09:20, Set: 15:33. Civil Dark: 16:32 - 07:34. Nautical Dark: 17:17 - 06:49. Astro Dark: 17:59 - 06:07

Total Clouds (% Sky Obscured)

67
55
55
55
55
62
68
72
67
63
62
64
72
80
80
85
85
85
86
77

Low Clouds (% Sky Obscured)

65
55
55
55
55
53
51
46
49
46
33
17
12
8
4
5
1
2
3
8

Medium Clouds (% Sky Obscured)

44
34
24
15
10
17
24
30
23
15
7
12
17
12
13
17
20
18
17
11

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
23
50
70
70
75
80
80
85
77

ISS Passover

Visibility (miles)

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

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

19
21
22
12
3
6
3
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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

87
90
90
91
91
91
91
91
91
89
89
91
91
91
89
89
91
91
89
88

Pressure (mb)

1008
1009
1010
1011
1011
1012
1012
1013
1013
1013
1013
1014
1014
1014
1014
1014
1014
1014
1014
1013

Ozone (du)

380
379
379
366
353
340
327
314
302
296
291
285
284
284
283
282
281
280
281
281

Forecast for Darley Abbey, Derby, United Kingdom (52.94,-1.48)

Generated: 13/12/25 16:16:09. Forecast: 13/12/25 to 19/12/25. Timezone: UTC+0.00