Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 7

Waning Gibbous 86%

18:29

11:23

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

Sun - Rise: 07:52, Set: 15:57, Transit: 11:55. Moon - Rise: 18:29, Set: 11:23. Civil Dark: 16:36 - 07:14. Nautical Dark: 17:18 - 06:31. Astro Dark: 17:58 - 05:52

Total Clouds (% Sky Obscured)

100
100
100
90
87
99
72
88
71
51
80
100
100
83
87
98
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

93
100
83
64
82
77
69
56
55
51
70
75
67
56
68
90
63
70
70
68
59
70
66
64

Medium Clouds (% Sky Obscured)

100
96
33
29
42
15
0
0
0
0
0
0
1
72
57
53
81
96
77
98
100
100
100
100

High Clouds (% Sky Obscured)

100
100
81
44
46
98
63
83
68
13
68
100
100
69
72
85
100
100
100
100
100
100
100
100

ISS Passover

Visibility (miles)

3
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
6
5
5

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
16
2
0
0

Precipitation Type

Light Rain
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

Precipitation Probability (%)

95
19
15
7
12
6
2
0
0
0
0
2
0
0
3
16
21
21
30
36
65
95
95
95

Precipitation Amount (mm)

1.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.7
1.3
0.7

Wind Speed/Direction (mph)

14
15
17
21
19
18
17
14
14
12
12
13
14
13
12
13
13
13
14
13
13
14
13
11

Chance of Frost

Temperature (°C)

13
14
14
14
14
13
13
12
12
12
11
11
11
11
11
11
11
11
11
12
12
12
12
12

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

96
95
93
89
90
89
87
89
86
89
93
95
90
91
93
95
91
87
90
87
89
87
92
95

Pressure (mb)

1000
1000
1000
1001
1001
1002
1004
1004
1006
1006
1007
1008
1008
1009
1008
1008
1008
1008
1008
1009
1010
1010
1010
1010

Ozone (du)

286
287
289
290
289
290
293
297
299
304
303
302
302
302
305
308
308
307
311
314
318
323
328
332

Monday 8

Waning Gibbous 77%

19:57

11:45

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

Sun - Rise: 07:53, Set: 15:57, Transit: 11:55. Moon - Rise: 19:57, Set: 11:45. Civil Dark: 16:36 - 07:15. Nautical Dark: 17:18 - 06:32. Astro Dark: 17:58 - 05:52

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
97
92

Low Clouds (% Sky Obscured)

60
75
73
72
72
69
76
71
78
89
92
81
81
41
36
38
69
74
85
100
100
94
97
81

Medium Clouds (% Sky Obscured)

96
80
85
69
63
27
87
84
72
79
68
100
100
100
99
100
100
100
100
97
80
76
95
90

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
92
100
100
78
31
42
38
11

ISS Passover

Visibility (miles)

9
9
7
5
9
9
9
9
7
5
9
9
9
9
9
9
9
9
5
3
9
9
9
9

Fog (%)

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

Precipitation Probability (%)

64
41
63
43
17
2
15
43
62
41
75
88
74
37
53
89
95
95
95
95
35
32
43
45

Precipitation Amount (mm)

0.2
0
0.3
0
0
0
0
0
0.3
0
0.6
0.8
0.4
0
0.3
0.8
1
1.1
1.4
1
0
0
0
0.2

Wind Speed/Direction (mph)

12
13
12
12
11
11
11
10
11
12
15
16
16
17
17
17
19
19
22
22
21
21
21
21

Chance of Frost

Temperature (°C)

12
12
12
12
12
12
12
12
12
12
12
12
13
12
12
12
12
12
12
11
12
12
12
13

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

95
92
93
95
93
93
93
95
95
96
95
89
87
89
90
87
87
87
87
87
86
86
86
84

Pressure (mb)

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

Ozone (du)

333
331
333
331
329
326
327
327
324
321
318
313
307
303
299
297
290
289
289
290
290
289
288
287

Tuesday 9

Waning Gibbous 67%

21:21

12:01

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

Sun - Rise: 07:54, Set: 15:57, Transit: 11:56. Moon - Rise: 21:21, Set: 12:01. Civil Dark: 16:36 - 07:16. Nautical Dark: 17:18 - 06:33. Astro Dark: 17:58 - 05:53

Total Clouds (% Sky Obscured)

96
95
98
98
100
100
96
100
99
100
100
100
100
99
100
100
95
95
87
85
97
95
87
100

Low Clouds (% Sky Obscured)

90
86
90
75
70
59
45
48
68
62
73
58
46
71
76
73
60
52
49
43
54
60
66
61

Medium Clouds (% Sky Obscured)

29
25
44
66
100
100
94
100
98
99
74
37
26
19
25
20
20
17
13
10
13
21
30
60

High Clouds (% Sky Obscured)

4
35
40
7
12
67
15
5
13
50
96
50
100
69
85
85
90
90
87
85
84
70
64
81

ISS Passover

Visibility (miles)

9
9
9
9
9
5
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
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

31
36
45
31
58
52
17
19
1
0
1
16
3
3
6
4
2
3
2
3
7
6
1
6

Precipitation Amount (mm)

0
0
0
0
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

21
20
21
18
17
18
17
17
17
17
20
21
21
21
20
20
22
18
15
12
11
12
12
13

Chance of Frost

Temperature (°C)

13
14
14
13
13
13
12
12
12
12
12
12
12
12
12
12
11
11
10
10
10
11
11
12

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

86
87
86
83
86
87
87
84
84
83
83
80
84
86
90
90
81
76
81
84
87
83
81
81

Pressure (mb)

1005
1005
1005
1005
1005
1005
1006
1006
1006
1005
1005
1005
1005
1005
1006
1007
1009
1010
1012
1013
1014
1015
1016
1016

Ozone (du)

287
286
285
286
286
286
286
286
286
289
290
290
290
289
287
286
286
289
291
291
293
292
294
297

Wednesday 10

Waning Gibbous 57%

22:40

12:14

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

Sun - Rise: 07:55, Set: 15:57, Transit: 11:56. Moon - Rise: 22:40, Set: 12:14. Civil Dark: 16:36 - 07:16. Nautical Dark: 17:18 - 06:34. Astro Dark: 17:58 - 05:54

Total Clouds (% Sky Obscured)

75
70
51
35
18
21
25
27
24
22
20
26
30
33
30
24
24
34
42
52
65
95
100
98

Low Clouds (% Sky Obscured)

58
47
44
34
18
21
25
27
24
22
20
26
30
33
30
24
24
34
42
52
65
77
87
86

Medium Clouds (% Sky Obscured)

65
70
50
25
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
22
47
70
66

High Clouds (% Sky Obscured)

75
70
51
32
0
0
0
0
0
0
0
0
0
1
1
0
0
0
0
0
30
75
100
73

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 (%)

7
3
6
4
2
4
19
2
1
2
0
2
2
2
4
3
1
4
5
5
7
7
2
3

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

80
81
84
90
93
95
95
95
96
96
96
96
96
98
98
98
96
96
96
95
95
91
88
88

Pressure (mb)

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

Ozone (du)

301
305
307
307
311
312
307
305
305
304
305
306
306
307
309
312
314
316
319
323
324
321
316
315

Thursday 11

Third Quarter 46%

23:55

12:25

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

Sun - Rise: 07:56, Set: 15:57, Transit: 11:57. Moon - Rise: 23:55, Set: 12:25. Civil Dark: 16:36 - 07:17. Nautical Dark: 17:18 - 06:35. Astro Dark: 17:58 - 05:55

Total Clouds (% Sky Obscured)

96
93
96
97
100
100
100
100
99
94
94
95
96
96
96
97
97
98
99
100
88
71
47
59

Low Clouds (% Sky Obscured)

86
80
77
74
70
68
66
63
67
71
74
73
72
71
73
74
76
59
42
29
25
18
10
4

Medium Clouds (% Sky Obscured)

60
80
85
71
84
66
71
89
96
71
82
79
78
63
49
40
23
37
54
72
58
41
25
41

High Clouds (% Sky Obscured)

47
20
47
69
86
85
90
86
63
42
22
16
16
17
34
51
71
86
94
100
82
57
35
43

ISS Passover

Visibility (miles)

9
9
9
9
9
9
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

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

Precipitation Probability (%)

5
2
14
13
18
42
33
5
6
6
0
8
13
12
37
52
55
47
32
17
16
15
7
11

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

9
9
8
9
9
9
9
10
9
9
9
9
9
9
9
9
9
9
9
8
8
8
8
8

Relative Humidity (%)

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

Pressure (mb)

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

Ozone (du)

316
317
319
320
323
322
317
314
315
316
316
315
314
312
311
312
312
313
313
313
313
315
317
319

Friday 12

Waning Crescent 36%

01:07

12:36

13 Bad
14 Bad
15 Bad
16 OK
17 OK
18 OK
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

Sun - Rise: 07:57, Set: 15:57, Transit: 11:57. Moon - Rise: 01:07, Set: 12:36. Civil Dark: 16:36 - 07:18. Nautical Dark: 17:18 - 06:36. Astro Dark: 17:58 - 05:56

Total Clouds (% Sky Obscured)

79
100
67
33
5
10
15
45
65
74
75
77
83
90
76
66
63
78
83
80
86
92
97
98

Low Clouds (% Sky Obscured)

5
2
2
3
3
8
13
15
25
38
47
38
39
40
46
52
59
56
54
51
52
47
44
52

Medium Clouds (% Sky Obscured)

61
78
67
33
5
10
15
45
65
74
75
77
71
76
66
61
44
44
33
18
26
42
59
72

High Clouds (% Sky Obscured)

50
62
43
23
5
0
0
0
0
0
5
5
4
0
1
3
4
4
4
3
31
59
87
92

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
8
7
8
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
0
1
3
4
27
39
47
52
45
28
15
8
0
4
10
17
17
16
11
11
11
11
22

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
7
8
8
9
8
9
8
6
5
4
5
7
8
10
11
13
14
14
15
16
17
18

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

90
90
90
90
91
90
91
95
95
91
88
85
87
87
87
87
87
87
88
88
90
87
87
85

Pressure (mb)

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

Ozone (du)

319
319
320
319
319
318
319
319
319
320
320
321
322
323
324
327
331
334
334
333
333
332
331
330

Saturday 13

Waning Crescent 27%

02:18

12:48

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
04 Bad
05 Bad

Sun - Rise: 07:58, Set: 15:57, Transit: 11:58. Moon - Rise: 02:18, Set: 12:48. Civil Dark: 16:36 - 07:19. Nautical Dark: 17:18 - 06:37. Astro Dark: 17:58 - 05:56

Total Clouds (% Sky Obscured)

98
100
100
100
100
100
100
100
93
82
72
66
63
62
75
88
100

Low Clouds (% Sky Obscured)

63
77
85
86
82
70
64
62
74
79
70
56
57
53
62
71
74

Medium Clouds (% Sky Obscured)

85
98
77
59
42
38
34
30
21
12
9
13
17
24
38
56
68

High Clouds (% Sky Obscured)

91
95
94
91
87
87
86
84
78
75
72
66
63
62
75
87
88

ISS Passover

Visibility (miles)

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

Precipitation Type

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

Precipitation Probability (%)

30
35
36
37
40
39
36
28
26
21
12
9
9
3
15
23
29

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

19
19
20
20
20
21
17
14
13
12
12
12
12
11
11
12
13

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

85
85
85
85
87
87
88
87
88
90
91
93
93
93
93
95
96

Pressure (mb)

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

Ozone (du)

332
334
336
336
337
337
337
337
337
337
338
338
335
332
330
327
324

Forecast for Chichester, West Sussex, United Kingdom (50.84,-0.77)

Generated: 07/12/25 12:52:16. Forecast: 07/12/25 to 13/12/25. Timezone: UTC+0.00