Clear Outside v1.0 - International Weather Forecasts For Astronomers

Saturday 20

New Moon 2%

09:56

16:47

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: 08:14, Set: 15:56, Transit: 12:05. Moon - Rise: 09:56, Set: 16:47. Civil Dark: 16:37 - 07:33. Nautical Dark: 17:21 - 06:49. Astro Dark: 18:02 - 06:07

Total Clouds (% Sky Obscured)

41
53
73
98
100
99
96
99
100
100
100
100
96
96
99
99
100
99
100
100
98
100
100
100

Low Clouds (% Sky Obscured)

41
53
63
73
72
72
70
76
81
81
97
82
84
84
86
90
91
91
82
89
64
54
78
70

Medium Clouds (% Sky Obscured)

0
39
40
42
53
48
83
94
56
67
92
36
73
78
91
74
37
62
49
97
90
100
100
100

High Clouds (% Sky Obscured)

41
53
73
89
79
63
55
55
26
47
51
100
56
73
75
83
99
89
100
100
76
97
100
100

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
1
2
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
1
17
21
11
13
10
18
17
2
0
0
1
4
3
1
4
2
1
4
25

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

91
91
94
91
90
88
90
91
94
93
93
94
96
94
94
96
94
91
90
87
87
85
88
93

Pressure (mb)

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

Ozone (du)

301
301
302
306
309
308
307
314
315
310
312
310
311
315
321
326
333
341
346
350
355
359
361
360

Sunday 21

Waxing Crescent 6%

10:24

No Set

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: 08:15, Set: 15:56, Transit: 12:06. Moon - Rise: 10:24, Set: No Set. Civil Dark: 16:38 - 07:33. Nautical Dark: 17:21 - 06:49. Astro Dark: 18:03 - 06:08

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
95
98
98
99
88
96
100
100
100
100
100

Low Clouds (% Sky Obscured)

89
97
96
98
91
82
83
84
81
83
82
60
55
61
60
74
74
70
78
83
82
81
83
81

Medium Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
94
43
34
41
57
27
22
60
10
2
3
22

High Clouds (% Sky Obscured)

100
100
100
62
100
100
100
100
100
100
100
100
81
25
86
90
93
19
76
100
88
100
100
98

ISS Passover

Visibility (miles)

9
6
6
9
4
3
8
5
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
7
24
12
3
2
1
0
0

Precipitation Type

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

Precipitation Probability (%)

62
92
90
95
95
90
76
83
62
50
56
44
27
9
3
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

11
11
12
14
14
13
13
11
9
10
12
13
11
10
9
8
7
7
8
8
7
7
7
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

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

Pressure (mb)

1006
1006
1006
1006
1005
1005
1005
1005
1005
1005
1005
1004
1004
1005
1005
1006
1006
1007
1007
1007
1007
1007
1008
1008

Ozone (du)

360
361
362
363
367
369
370
372
372
371
370
370
370
368
366
364
364
366
369
373
376
377
380
379

Monday 22

Waxing Crescent 12%

10:45

18:02

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: 08:15, Set: 15:57, Transit: 12:06. Moon - Rise: 10:45, Set: 18:02. Civil Dark: 16:38 - 07:34. Nautical Dark: 17:22 - 06:50. Astro Dark: 18:03 - 06:08

Total Clouds (% Sky Obscured)

95
98
78
69
71
92
97
100
100
100
100
100
100
100
100
97
94
96
100
100
100
100
99
99

Low Clouds (% Sky Obscured)

74
71
67
51
55
66
77
81
80
80
80
85
90
90
91
86
88
90
100
100
100
100
98
95

Medium Clouds (% Sky Obscured)

14
18
60
9
47
60
68
65
91
92
99
98
86
55
21
18
7
37
45
48
43
3
11
20

High Clouds (% Sky Obscured)

75
90
33
37
40
36
35
81
99
100
100
100
93
60
62
54
33
24
17
12
5
10
11
1

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
6
9
9
9
9
9
9
9
9

Fog (%)

0
0
0
0
0
0
7
16
23
30
37
48
63
68
68
68
68
68
68
68
68
68
68
68

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
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

94
96
94
94
96
94
94
94
94
94
94
93
94
94
94
96
98
94
90
85
82
81
79
78

Pressure (mb)

1009
1009
1010
1011
1012
1012
1013
1013
1013
1014
1014
1015
1015
1016
1016
1017
1018
1019
1019
1020
1020
1020
1021
1021

Ozone (du)

378
378
375
374
370
367
364
363
363
359
355
353
352
351
349
346
347
348
348
352
350
352
348
339

Tuesday 23

Waxing Crescent 19%

11:01

19:21

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

Sun - Rise: 08:15, Set: 15:58, Transit: 12:07. Moon - Rise: 11:01, Set: 19:21. Civil Dark: 16:39 - 07:34. Nautical Dark: 17:22 - 06:50. Astro Dark: 18:04 - 06:09

Total Clouds (% Sky Obscured)

99
67
93
95
95
95
96
94
92
89
90
87
82
59
28
5
18
29
44
51
62
70
70
66

Low Clouds (% Sky Obscured)

93
67
76
87
93
91
90
84
76
69
70
72
71
46
24
0
12
25
39
44
48
57
54
52

Medium Clouds (% Sky Obscured)

29
20
55
45
25
44
49
50
45
50
35
31
31
22
19
5
18
7
1
10
29
19
18
28

High Clouds (% Sky Obscured)

1
1
0
0
0
1
1
5
24
30
40
45
50
45
28
5
18
15
44
45
45
45
45
50

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 (%)

68
68
68
68
68
68
68
68
68
68
68
68
68
68
68
68
68
68
68
68
68
68
68
68

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

11
11
11
10
11
13
13
13
13
13
13
14
15
15
14
14
13
13
14
14
14
14
14
14

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

79
82
85
85
83
79
76
79
81
80
80
82
85
86
85
85
85
83
80
79
80
79
79
80

Pressure (mb)

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

Ozone (du)

335
334
330
330
330
331
333
333
332
331
330
331
332
334
336
336
337
336
337
335
335
335
334
333

Wednesday 24

Waxing Crescent 28%

11:13

20:40

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: 08:16, Set: 15:58, Transit: 12:07. Moon - Rise: 11:13, Set: 20:40. Civil Dark: 16:40 - 07:35. Nautical Dark: 17:23 - 06:50. Astro Dark: 18:04 - 06:09

Total Clouds (% Sky Obscured)

59
55
48
48
48
50
50
55
59
70
76
87
93
99
98
98
98
99
99
98
100
100
100
100

Low Clouds (% Sky Obscured)

47
47
48
48
48
50
50
55
59
63
63
66
65
85
85
84
89
95
99
98
97
95
100
100

Medium Clouds (% Sky Obscured)

15
3
2
0
0
0
0
10
18
25
33
36
42
34
28
28
33
39
45
42
39
28
35
48

High Clouds (% Sky Obscured)

35
18
2
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 (%)

68
68
68
68
68
68
68
68
68
68
68
68
68
68
68
68
68
68
68
68
68
68
68
68

Precipitation Type

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

Precipitation Probability (%)

1
3
2
0
1
1
0
5
7
5
7
6
3
43
48
54
47
38
29
26
22
18
18
16

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

14
14
14
14
13
13
13
13
13
12
11
12
15
17
16
16
16
16
15
15
15
16
16
17

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

79
79
80
80
82
82
83
83
83
84
86
84
69
63
63
64
64
67
67
68
68
69
69
69

Pressure (mb)

1033
1033
1033
1033
1033
1033
1032
1032
1032
1032
1031
1030
1029
1029
1028
1028
1028
1027
1027
1026
1026
1026
1025
1025

Ozone (du)

332
336
341
342
344
345
344
342
340
339
338
338
339
339
341
343
345
346
348
350
354
357
361
362

Thursday 25

Waxing Crescent 26%

11:24

21:59

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: 08:16, Set: 15:59, Transit: 12:08. Moon - Rise: 11:24, Set: 21:59. Civil Dark: 16:40 - 07:35. Nautical Dark: 17:24 - 06:51. Astro Dark: 18:05 - 06:09

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
99
99
99
99
96
92
88
92
97
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

100
100
100
100
100
100
99
91
81
63
68
70
69
78
85
88
92
97
100
100
100
100
100
100

Medium Clouds (% Sky Obscured)

69
64
49
34
32
30
29
43
54
66
59
60
59
52
44
31
23
13
3
2
1
0
0
0

High Clouds (% Sky Obscured)

0
0
0
1
0
0
0
0
0
0
0
0
1
1
1
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 (%)

68
68
68
68
68
68
68
68
68
68
68
68
68
68
68
68
68
68
68
68
68
68
68
68

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 (%)

13
14
14
14
15
16
16
16
16
15
16
16
16
16
16
11
13
14
14
14
12
8
8
6

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
17
16
16
15
15
14
13
13
12
12
11
11
11
11
10
10
10
10
10
10
10
10
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

69
69
69
68
67
69
72
73
76
77
80
81
83
84
84
84
83
81
79
76
74
73
72
74

Pressure (mb)

1025
1025
1025
1025
1025
1025
1025
1025
1026
1026
1026
1026
1026
1026
1027
1028
1028
1028
1029
1029
1029
1029
1030
1030

Ozone (du)

363
364
363
362
361
360
359
357
357
356
356
354
352
350
349
348
348
349
350
352
352
352
352
352

Friday 26

Waxing Crescent 39%

11:34

23:19

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 OK
06 OK
07 OK
08 Good
09 Good
10 OK
11 OK

Sun - Rise: 08:16, Set: 16:00, Transit: 12:08. Moon - Rise: 11:34, Set: 23:19. Civil Dark: 16:41 - 07:35. Nautical Dark: 17:24 - 06:51. Astro Dark: 18:06 - 06:09

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
99
100
100
81
62
43
29
16
7
12
17
21

Low Clouds (% Sky Obscured)

100
100
100
100
100
100
100
99
98
97
75
52
32
24
16
6
6
8
8

Medium Clouds (% Sky Obscured)

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

High Clouds (% Sky Obscured)

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

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

68
68
68
68
68
68
68
68
68
68
68
68
68
68
68
68
68
68
68

Precipitation Type

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

Precipitation Probability (%)

3
4
5
1
1
3
3
1
1
0
1
1
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

77
80
82
83
83
83
80
79
76
75
72
77
82
86
86
86
85
83
80

Pressure (mb)

1030
1031
1031
1032
1032
1033
1033
1033
1033
1033
1034
1034
1034
1034
1035
1035
1036
1036
1036

Ozone (du)

352
352
352
353
354
353
352
351
352
353
354
353
351
350
348
347
346
343
340

Forecast for Henley in Arden, Warwickshire, United Kingdom (52.29,-1.78)

Generated: 20/12/25 17:15:28. Forecast: 20/12/25 to 26/12/25. Timezone: UTC+0.00