Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 21

Waxing Crescent 6%

10:22

No Set

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
17 Bad

Sun - Rise: 08:13, Set: 16:07, Transit: 12:10. Moon - Rise: 10:22, Set: No Set. Civil Dark: 16:47 - 07:33. Nautical Dark: 17:29 - 06:50. Astro Dark: 18:09 - 06:10

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
99
100
100
95
100
96
84
76
80
100
99
100
100
100
100
100
98
95

Low Clouds (% Sky Obscured)

92
82
91
97
100
100
98
100
100
93
90
86
71
73
52
57
60
61
69
54
39
44
45
59

Medium Clouds (% Sky Obscured)

98
100
100
92
100
89
97
73
57
52
73
44
21
0
31
80
21
16
3
64
37
34
36
32

High Clouds (% Sky Obscured)

59
100
100
100
100
70
77
38
91
82
92
80
80
76
77
79
98
100
100
100
100
100
86
48

ISS Passover

Visibility (miles)

9
9
9
9
9
8
1
7
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
None
None
Very Light Rain
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

Precipitation Probability (%)

88
34
9
65
95
95
95
75
57
39
43
24
10
10
5
6
17
12
12
0
1
0
0
2

Precipitation Amount (mm)

0.5
0
0
0.3
0.9
2.1
1.4
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

11
12
12
12
12
9
12
11
12
13
12
10
9
8
8
6
5
6
6
6
5
4
3
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

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

Pressure (mb)

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

Ozone (du)

382
384
387
391
392
393
393
393
393
393
393
393
393
394
395
397
399
402
404
403
400
397
391
386

Monday 22

Waxing Crescent 12%

10:44

18:14

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
17 Bad

Sun - Rise: 08:13, Set: 16:08, Transit: 12:10. Moon - Rise: 10:44, Set: 18:14. Civil Dark: 16:47 - 07:34. Nautical Dark: 17:30 - 06:51. Astro Dark: 18:10 - 06:11

Total Clouds (% Sky Obscured)

100
99
94
99
99
99
99
100
97
98
100
100
100
100
100
100
100
100
100
100
98
99
100
99

Low Clouds (% Sky Obscured)

59
63
52
81
72
74
79
85
86
95
100
100
100
100
100
100
100
100
100
100
98
99
100
98

Medium Clouds (% Sky Obscured)

40
60
52
84
68
79
52
51
45
44
46
38
71
50
47
37
46
22
64
70
43
26
29
27

High Clouds (% Sky Obscured)

94
59
6
10
65
90
72
99
28
35
12
59
100
98
31
52
39
28
10
11
6
1
2
9

ISS Passover

Visibility (miles)

9
9
9
9
9
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

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 (%)

16
19
13
19
17
10
9
12
7
9
3
6
1
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)

3
3
4
4
5
5
6
6
6
5
6
8
9
10
11
12
12
13
13
14
14
14
14
15

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

6
6
6
6
5
6
6
6
7
6
6
5
5
5
5
4
3
2
2
2
2
1
1
1

Dew Point (°C)

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

Relative Humidity (%)

95
94
96
96
96
96
96
96
96
96
95
96
94
91
91
90
88
88
88
90
90
91
90
86

Pressure (mb)

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

Ozone (du)

381
377
374
372
369
366
362
361
359
357
356
356
354
355
354
357
355
352
350
349
351
352
349
347

Tuesday 23

Waxing Crescent 19%

11:01

19:31

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 OK
17 OK

Sun - Rise: 08:14, Set: 16:08, Transit: 12:11. Moon - Rise: 11:01, Set: 19:31. Civil Dark: 16:48 - 07:34. Nautical Dark: 17:31 - 06:51. Astro Dark: 18:10 - 06:11

Total Clouds (% Sky Obscured)

100
97
77
77
77
77
79
81
87
95
96
94
91
91
86
81
68
64
67
60
58
46
42
36

Low Clouds (% Sky Obscured)

100
93
77
77
77
77
75
79
86
95
95
93
91
91
86
78
68
62
60
54
50
46
42
36

Medium Clouds (% Sky Obscured)

21
14
27
12
0
3
17
9
2
0
3
3
2
2
0
0
0
0
0
0
2
2
2
0

High Clouds (% Sky Obscured)

11
10
2
1
1
1
0
1
0
2
4
35
2
21
34
10
3
3
19
18
26
2
2
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 (%)

0
0
0
0
0
0
0
0
0
0
0
1
1
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

83
83
85
93
94
96
96
94
96
94
89
88
86
85
82
79
83
85
82
80
78
80
83
86

Pressure (mb)

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

Ozone (du)

344
342
337
334
334
333
332
329
327
323
319
318
319
319
318
319
319
318
317
314
314
315
316
318

Wednesday 24

Waxing Crescent 28%

11:15

20:48

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

Sun - Rise: 08:14, Set: 16:09, Transit: 12:11. Moon - Rise: 11:15, Set: 20:48. Civil Dark: 16:49 - 07:34. Nautical Dark: 17:31 - 06:52. Astro Dark: 18:11 - 06:11

Total Clouds (% Sky Obscured)

33
30
29
33
33
40
43
43
45
40
32
25
17
10
2
5
8
11
17
23
29
34
35
38

Low Clouds (% Sky Obscured)

33
30
29
33
33
40
43
43
45
40
32
25
17
10
0
4
8
11
12
13
14
10
5
0

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
4
8
13
18
23
29

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 (%)

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)

14
14
13
13
13
13
13
13
14
15
14
14
14
15
15
16
18
19
21
20
20
19
18
17

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

88
86
83
84
86
86
88
88
88
86
84
84
83
86
84
83
77
73
68
67
67
66
64
63

Pressure (mb)

1033
1033
1033
1034
1034
1034
1034
1033
1033
1033
1032
1032
1031
1031
1031
1031
1030
1029
1028
1028
1027
1027
1027
1028

Ozone (du)

318
319
320
323
325
325
325
326
327
329
331
333
336
340
345
351
355
354
354
356
358
362
364
363

Thursday 25

Waxing Crescent 39%

11:27

22:06

18 OK
19 OK
20 OK
21 OK
22 OK
23 OK
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
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

Sun - Rise: 08:14, Set: 16:10, Transit: 12:12. Moon - Rise: 11:27, Set: 22:06. Civil Dark: 16:49 - 07:35. Nautical Dark: 17:32 - 06:52. Astro Dark: 18:12 - 06:12

Total Clouds (% Sky Obscured)

40
38
37
38
39
38
45
52
61
53
45
37
94
97
98
100
100
100
100
100
99
98
91
81

Low Clouds (% Sky Obscured)

7
15
22
27
33
38
40
42
43
41
39
37
91
92
89
93
96
96
92
87
86
85
80
75

Medium Clouds (% Sky Obscured)

27
24
22
16
10
3
10
22
25
21
8
3
3
3
1
21
38
51
37
24
15
10
9
6

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
1
9
13
16
9
8
9
10
13
17
18
12
5

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 (%)

1
1
0
0
0
1
1
1
0
1
1
0
2
2
1
2
2
0
1
1
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-4
-4
-4
-5
-4
-4
-4
-4
-5
-3
-4
-5
-5
-4
-4
-4
-4
-4
-4
-0
-0
-1
-1
0

Dew Point (°C)

-5
-5
-5
-5
-4
-4
-3
-3
-3
-3
-3
-2
-3
-2
-2
-2
-1
-1
-1
-1
0
0
0
0

Relative Humidity (%)

64
65
67
70
75
78
81
86
87
89
91
92
91
91
89
89
84
81
77
79
82
82
85
89

Pressure (mb)

1028
1028
1029
1029
1029
1029
1029
1029
1029
1029
1029
1029
1029
1029
1029
1030
1030
1030
1030
1030
1030
1030
1030
1031

Ozone (du)

364
362
363
364
362
358
357
357
358
357
357
360
362
362
362
362
360
358
355
354
353
352
351
351

Friday 26

Waxing Crescent 50%

11:39

23:24

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 OK
16 OK
17 OK

Sun - Rise: 08:14, Set: 16:11, Transit: 12:12. Moon - Rise: 11:39, Set: 23:24. Civil Dark: 16:50 - 07:35. Nautical Dark: 17:33 - 06:52. Astro Dark: 18:12 - 06:12

Total Clouds (% Sky Obscured)

85
91
99
99
99
100
100
100
100
93
91
87
76
69
60
69
75
83
65
48
31
34
39
43

Low Clouds (% Sky Obscured)

74
69
63
54
54
65
75
75
75
75
80
85
76
69
60
62
55
48
42
39
31
34
35
37

Medium Clouds (% Sky Obscured)

5
4
2
2
1
0
0
0
0
0
0
0
6
14
22
33
41
48
32
16
0
0
0
0

High Clouds (% Sky Obscured)

2
4
5
5
0
0
0
0
0
0
4
3
8
7
8
26
43
62
42
22
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 (%)

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

92
94
92
92
92
92
92
91
92
91
92
91
92
92
91
89
88
85
83
85
83
85
83
82

Pressure (mb)

1031
1032
1032
1033
1033
1033
1033
1033
1034
1034
1034
1034
1034
1034
1035
1035
1035
1035
1035
1034
1034
1034
1034
1034

Ozone (du)

350
351
352
353
353
352
352
351
351
351
352
353
354
357
360
363
363
363
363
361
359
358
356
354

Saturday 27

First Quarter 50%

11:52

00:44

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: 08:14, Set: 16:11, Transit: 12:13. Moon - Rise: 11:52, Set: 00:44. Civil Dark: 16:51 - 07:35. Nautical Dark: 17:33 - 06:52. Astro Dark: 18:13 - 06:12

Total Clouds (% Sky Obscured)

58
75
89
88
86
83
86
88
91
88
84
81
77
72
66
63
63
64

Low Clouds (% Sky Obscured)

54
68
84
78
75
71
77
75
78
74
74
74
75
72
66
63
63
48

Medium Clouds (% Sky Obscured)

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

High Clouds (% Sky Obscured)

2
3
5
6
6
4
4
5
5
4
3
4
4
7
3
12
20
30

ISS Passover

Visibility (miles)

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

Precipitation Type

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

Precipitation Probability (%)

0
0
1
1
1
1
1
1
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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

80
78
73
71
77
85
93
93
94
94
96
96
96
98
98
98
93
88

Pressure (mb)

1035
1035
1035
1035
1035
1035
1035
1035
1035
1035
1035
1035
1035
1036
1036
1036
1036
1036

Ozone (du)

352
351
349
348
346
345
343
341
339
337
336
335
334
333
332
331
329
327

Forecast for Othery, Somerset, United Kingdom (51.08,-2.88)

Generated: 21/12/25 18:56:33. Forecast: 21/12/25 to 27/12/25. Timezone: UTC+0.00