Clear Outside v1.0 - International Weather Forecasts For Astronomers

Saturday 27

First Quarter 50%

11:36

00:27

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
16 Bad

Sun - Rise: 08:00, Set: 15:54, Transit: 11:57. Moon - Rise: 11:36, Set: 00:27. Civil Dark: 16:34 - 07:20. Nautical Dark: 17:16 - 06:37. Astro Dark: 17:57 - 05:56

Total Clouds (% Sky Obscured)

89
90
88
91
93
100
88
100
99
97
100
96
100
100
98
99
91
81
82
71
67
68
69
83

Low Clouds (% Sky Obscured)

89
89
88
91
91
100
85
100
99
97
100
90
100
100
93
99
90
78
80
68
64
61
66
72

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
0
0

High Clouds (% Sky Obscured)

2
4
26
40
34
61
20
36
21
14
31
53
64
41
60
24
13
1
1
24
25
29
26
54

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
9
14
6
3
4
5
2
4
4
10
9
7
9
6
6
10
1
2
2
3
10

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)

17
15
13
12
12
13
12
11
11
12
13
13
13
12
10
11
11
12
12
13
13
13
13
14

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

81
78
77
77
82
79
77
77
71
73
70
69
71
71
71
70
71
73
73
71
75
77
74
70

Pressure (mb)

1033
1034
1034
1034
1034
1034
1033
1033
1033
1033
1033
1032
1032
1032
1032
1032
1032
1032
1032
1031
1030
1030
1029
1029

Ozone (du)

301
303
304
303
301
301
300
299
298
298
299
299
299
299
299
298
298
300
301
302
303
305
308
308

Sunday 28

Waxing Gibbous 61%

11:51

01:51

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

Sun - Rise: 08:00, Set: 15:55, Transit: 11:57. Moon - Rise: 11:51, Set: 01:51. Civil Dark: 16:35 - 07:20. Nautical Dark: 17:17 - 06:37. Astro Dark: 17:57 - 05:57

Total Clouds (% Sky Obscured)

77
68
69
68
60
43
29
39
44
12
0
1
4
11
40
37
10
15
33
65
79
82
90
94

Low Clouds (% Sky Obscured)

66
49
36
39
37
29
0
0
0
0
0
0
0
0
28
29
0
0
16
59
77
78
88
93

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
0
0

High Clouds (% Sky Obscured)

46
49
58
46
32
26
29
39
44
12
0
1
3
7
7
1
1
0
0
0
0
0
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 (%)

2
3
2
0
2
0
0
0
0
0
0
0
1
1
2
0
4
1
0
0
2
3
4
18

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)

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

Chance of Frost

Temperature (°C)

5
4
4
3
2
2
2
2
2
2
2
2
3
3
3
3
4
6
7
8
8
8
7
7

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

71
69
72
72
70
77
83
84
86
85
86
85
86
86
82
72
72
70
70
70
69
73
75
74

Pressure (mb)

1029
1029
1029
1028
1028
1028
1028
1027
1027
1027
1026
1026
1026
1026
1026
1026
1026
1026
1026
1026
1026
1026
1026
1026

Ozone (du)

306
307
308
305
304
303
306
307
309
309
306
305
305
303
302
302
303
300
299
298
297
298
295
290

Monday 29

Waxing Gibbous 72%

12:11

03:20

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 OK
15 Bad
16 Bad

Sun - Rise: 08:00, Set: 15:56, Transit: 11:58. Moon - Rise: 12:11, Set: 03:20. Civil Dark: 16:36 - 07:20. Nautical Dark: 17:18 - 06:37. Astro Dark: 17:58 - 05:57

Total Clouds (% Sky Obscured)

91
86
68
87
76
56
59
88
100
97
79
77
84
100
88
98
63
71
68
59
41
31
37
39

Low Clouds (% Sky Obscured)

90
85
66
85
64
46
51
84
100
95
67
61
74
100
82
96
48
55
54
42
32
23
28
34

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
0
0

High Clouds (% Sky Obscured)

3
8
1
15
21
8
2
1
16
22
27
10
5
4
3
2
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
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

4
8
21
10
18
20
10
10
14
12
4
1
1
1
7
5
14
6
9
21
19
8
20
8

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)

13
13
13
13
15
15
15
15
15
15
16
16
15
15
16
15
14
14
15
14
14
14
14
13

Chance of Frost

Temperature (°C)

7
7
7
6
6
6
6
6
6
7
7
7
6
6
6
6
6
6
7
7
6
6
6
5

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

72
75
75
79
76
75
76
71
67
62
57
54
58
57
67
66
64
61
60
63
64
61
66
70

Pressure (mb)

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

Ozone (du)

286
285
283
282
284
282
283
284
285
284
284
286
283
282
283
285
285
286
288
291
295
299
297
296

Tuesday 30

Waxing Gibbous 82%

12:39

04:52

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

Sun - Rise: 08:00, Set: 15:57, Transit: 11:58. Moon - Rise: 12:39, Set: 04:52. Civil Dark: 16:37 - 07:20. Nautical Dark: 17:18 - 06:37. Astro Dark: 17:59 - 05:57

Total Clouds (% Sky Obscured)

39
45
53
61
52
41
29
26
24
21
15
15
19
23
23
30
29
25
24
29
33
39
44
52

Low Clouds (% Sky Obscured)

39
45
53
61
52
41
29
26
24
21
14
10
6
14
21
30
29
25
24
29
33
39
44
52

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
1
1
1
4
7
10
7
3
0
0
0
0
0
0

High 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
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
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

4
5
4
4
4
5
2
2
2
0
1
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

68
69
71
69
72
73
76
82
85
89
91
93
94
91
91
89
83
73
65
62
61
63
66
70

Pressure (mb)

1031
1031
1032
1032
1032
1031
1031
1031
1030
1030
1030
1029
1029
1029
1029
1029
1029
1029
1028
1028
1027
1027
1027
1027

Ozone (du)

303
315
327
330
334
336
337
336
333
330
326
321
320
320
321
321
320
321
321
321
321
320
321
322

Wednesday 31

Waxing Gibbous 91%

13:21

06:22

17 Bad
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
16 Bad

Sun - Rise: 08:00, Set: 15:58, Transit: 11:59. Moon - Rise: 13:21, Set: 06:22. Civil Dark: 16:38 - 07:20. Nautical Dark: 17:19 - 06:37. Astro Dark: 18:00 - 05:57

Total Clouds (% Sky Obscured)

55
48
41
30
28
25
22
46
68
83
89
97
96
96
97
100
98
95
91
84
82
80
86
93

Low Clouds (% Sky Obscured)

55
48
39
28
26
24
21
44
66
83
89
97
95
90
93
98
93
89
85
80
77
75
69
63

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
2
13
27

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
2
4
15
28
49
62
41
23
5
18
32
43
61
80

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
2
3
4
5
5
4
2
3
1
7
9
10
10
11
11
17
20

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)

8
7
6
6
6
6
6
6
7
8
8
8
12
12
11
12
12
13
14
15
15
15
15
15

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

76
79
83
88
93
94
96
96
98
96
94
89
71
73
73
72
71
72
72
72
75
78
82
80

Pressure (mb)

1026
1026
1026
1026
1025
1025
1024
1024
1023
1023
1022
1021
1020
1019
1019
1019
1018
1018
1017
1016
1015
1014
1014
1013

Ozone (du)

322
320
315
315
316
316
318
321
320
320
320
317
318
319
317
315
313
314
316
317
322
327
332
350

Thursday 1

Waxing Gibbous 97%

14:23

07:39

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 OK
07 OK
08 Good
09 Good
10 Good
11 Good
12 OK
13 Bad
14 Bad
15 Bad
16 Bad

Sun - Rise: 07:59, Set: 15:59, Transit: 11:59. Moon - Rise: 14:23, Set: 07:39. Civil Dark: 16:39 - 07:20. Nautical Dark: 17:20 - 06:37. Astro Dark: 18:01 - 05:57

Total Clouds (% Sky Obscured)

100
100
100
100
85
68
52
56
56
57
51
46
44
32
21
11
9
7
4
20
38
55
61
66

Low Clouds (% Sky Obscured)

58
60
54
39
29
20
14
16
17
23
22
21
17
13
11
9
7
4
1
16
33
49
53
57

Medium Clouds (% Sky Obscured)

40
35
30
10
3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

100
100
100
100
80
60
25
5
5
5
5
4
4
3
6
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
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

22
21
24
27
32
30
21
15
9
0
0
0
0
0
0
0
1
1
0
7
9
9
10
10

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

79
76
77
79
80
79
80
80
79
79
79
77
76
76
76
74
73
70
68
66
67
69
69
69

Pressure (mb)

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

Ozone (du)

368
386
386
386
387
388
389
390
387
384
381
376
371
366
363
360
357
354
351
348
343
337
331
324

Friday 2

Waxing Gibbous 100%

15:43

08:36

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

Sun - Rise: 07:59, Set: 16:00, Transit: 12:00. Moon - Rise: 15:43, Set: 08:36. Civil Dark: 16:40 - 07:20. Nautical Dark: 17:21 - 06:37. Astro Dark: 18:02 - 05:57

Total Clouds (% Sky Obscured)

66
64
60
59
62
64
62
47
32
16
19
22
23
24
25
29
29
28
37

Low Clouds (% Sky Obscured)

61
59
57
54
49
48
42
33
25
16
19
22
23
24
25
28
29
28
32

Medium Clouds (% Sky Obscured)

0
0
0
0
5
6
4
1
1
0
0
0
0
4
11
18
16
17
11

High Clouds (% Sky Obscured)

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

Fog (%)

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

Precipitation Probability (%)

5
10
11
11
10
8
2
3
2
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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-2
-3
-4
-4
-3
-3
-3
-4
-5
-4
-3
-3
-3
-3
-3
-2
-2
-2
-2

Dew Point (°C)

-1
-2
-2
-2
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1

Relative Humidity (%)

68
67
69
72
76
80
83
86
86
88
88
89
91
92
91
91
88
82
76

Pressure (mb)

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

Ozone (du)

316
309
306
304
301
299
297
295
294
293
292
298
304
310
313
317
320
319
318

Forecast for Herne, Kent, United Kingdom (51.35,1.12)

Generated: 27/12/25 17:14:12. Forecast: 27/12/25 to 02/01/26. Timezone: UTC+0.00