Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 21

Waxing Crescent 6%

10:23

18:22

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
18 Bad
19 Bad
20 Bad
21 Bad

Sun - Rise: 08:15, Set: 16:15, Transit: 12:15. Moon - Rise: 10:23, Set: 18:22. Civil Dark: 16:54 - 07:36. Nautical Dark: 17:36 - 06:54. Astro Dark: 18:16 - 06:14

Total Clouds (% Sky Obscured)

100
100
100
100
100
90
93
88
87
100
100
74
100
73
100
100
100
99
100
100
95
100
100
100

Low Clouds (% Sky Obscured)

89
95
100
88
100
78
93
87
78
73
75
66
60
53
57
52
60
61
69
69
71
67
71
73

Medium Clouds (% Sky Obscured)

100
100
100
84
42
27
2
2
17
56
61
6
2
2
24
18
74
45
43
65
90
90
52
47

High Clouds (% Sky Obscured)

100
100
100
100
100
90
9
19
81
96
84
74
100
73
100
100
67
85
96
100
64
100
68
98

ISS Passover

Visibility (miles)

1
0
0
1
1
7
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8

Fog (%)

23
22
0
0
0
21
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
None
Light Rain
Light Rain
Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

5
4
19
95
87
68
19
15
9
6
6
1
10
2
2
11
1
1
3
3
6
24
28
32

Precipitation Amount (mm)

0
0
0
1.2
0.5
0.4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

95
96
96
96
96
93
91
90
84
81
85
84
84
84
84
85
85
88
91
91
90
88
91
91

Pressure (mb)

1000
1000
999
998
998
999
999
999
1000
1002
1003
1004
1005
1005
1005
1005
1005
1006
1006
1007
1007
1008
1008
1009

Ozone (du)

401
400
400
400
401
404
404
411
412
412
412
414
415
415
416
412
406
401
398
393
387
382
379
379

Monday 22

Waxing Crescent 12%

10:46

19:38

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
18 Bad
19 Bad
20 Bad
21 Bad

Sun - Rise: 08:15, Set: 16:16, Transit: 12:15. Moon - Rise: 10:46, Set: 19:38. Civil Dark: 16:54 - 07:36. Nautical Dark: 17:36 - 06:54. Astro Dark: 18:16 - 06:14

Total Clouds (% Sky Obscured)

92
95
100
100
96
97
97
99
99
100
98
99
100
100
100
100
94
99
93
94
89
84
88
90

Low Clouds (% Sky Obscured)

80
61
61
67
72
93
96
99
99
100
96
97
100
100
100
100
94
96
89
93
75
79
84
87

Medium Clouds (% Sky Obscured)

53
43
42
57
71
90
93
97
85
77
71
65
71
67
52
55
42
74
72
57
21
1
2
1

High Clouds (% Sky Obscured)

46
56
100
100
56
44
25
25
8
20
30
7
31
5
4
12
16
18
29
32
59
17
8
6

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
6
4
1
0
7
9
9
9
9
9
9
7
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
23
21
1
1
1
1
0
0
0
0
0
0
0

Precipitation Type

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

Precipitation Probability (%)

23
9
8
5
8
19
43
62
55
48
67
37
22
23
12
5
0
0
0
0
0
1
3
3

Precipitation Amount (mm)

0
0
0
0
0
0
0
0.4
0.3
0
0.4
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

11
10
10
9
8
5
3
4
4
5
6
9
10
10
10
10
11
11
12
13
14
14
15
16

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

3
3
4
3
3
3
4
4
4
5
5
6
6
6
5
5
4
4
2
1
-0
-0
-1
-1

Dew Point (°C)

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

Relative Humidity (%)

88
90
90
87
88
88
90
90
91
93
93
95
96
96
95
90
87
88
93
93
91
89
89
88

Pressure (mb)

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

Ozone (du)

379
376
371
366
364
365
368
367
366
366
361
360
359
357
357
361
356
352
353
351
349
348
348
346

Tuesday 23

Waxing Crescent 19%

11:04

20:55

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
18 Good
19 OK
20 OK
21 OK

Sun - Rise: 08:15, Set: 16:16, Transit: 12:16. Moon - Rise: 11:04, Set: 20:55. Civil Dark: 16:55 - 07:37. Nautical Dark: 17:37 - 06:55. Astro Dark: 18:17 - 06:15

Total Clouds (% Sky Obscured)

84
87
92
90
88
72
73
81
80
86
79
67
47
46
48
42
16
29
23
9
2
3
6
10

Low Clouds (% Sky Obscured)

80
87
88
89
88
72
71
75
79
80
79
67
47
46
48
42
1
1
1
1
1
2
4
9

Medium Clouds (% Sky Obscured)

1
1
27
2
2
1
47
42
0
20
0
0
0
0
0
1
1
1
0
0
0
0
0
0

High Clouds (% Sky Obscured)

14
9
5
3
1
1
2
0
0
0
0
0
0
0
1
5
16
29
23
7
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
6
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 (%)

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

16
17
17
17
18
19
19
19
20
20
21
21
21
21
21
21
22
22
22
23
24
24
24
24

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

86
86
91
91
86
86
86
91
93
89
86
85
86
85
82
80
78
80
83
86
86
88
89
88

Pressure (mb)

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

Ozone (du)

344
342
339
334
332
331
329
324
323
323
320
316
314
313
313
314
314
313
313
317
321
323
326
326

Wednesday 24

Waxing Crescent 28%

11:19

No Set

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

Sun - Rise: 08:16, Set: 16:17, Transit: 12:16. Moon - Rise: 11:19, Set: No Set. Civil Dark: 16:56 - 07:37. Nautical Dark: 17:38 - 06:55. Astro Dark: 18:18 - 06:15

Total Clouds (% Sky Obscured)

12
16
18
17
16
12
9
4
17
30
46
45
50
44
49
59
84
92
94
100
98
96
95
92

Low Clouds (% Sky Obscured)

12
16
18
17
16
12
9
4
17
30
46
45
50
44
49
59
84
92
94
100
97
94
90
87

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
9
16
25
16
10
0
4
2
0
0
0
1
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 (%)

0
0
0
0
0
0
0
0
5
7
5
16
22
22
32
33
30
32
28
19
22
21
11
15

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)

23
23
22
22
22
22
24
26
28
28
28
29
28
27
25
24
23
21
21
20
19
19
19
20

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

86
86
86
84
86
84
84
83
84
86
84
81
77
72
69
67
67
68
70
70
74
77
80
81

Pressure (mb)

1031
1031
1031
1031
1030
1030
1029
1028
1028
1027
1027
1027
1027
1026
1026
1025
1025
1025
1026
1026
1026
1027
1027
1027

Ozone (du)

326
326
326
329
330
331
332
334
339
344
346
348
349
350
353
356
358
361
362
363
364
365
365
368

Thursday 25

Waxing Crescent 39%

11:32

22:12

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

Sun - Rise: 08:16, Set: 16:18, Transit: 12:17. Moon - Rise: 11:32, Set: 22:12. Civil Dark: 16:56 - 07:37. Nautical Dark: 17:38 - 06:55. Astro Dark: 18:18 - 06:15

Total Clouds (% Sky Obscured)

90
75
61
40
30
20
8
6
7
11
9
10
10
20
23
34
33
46
50
60
67
82
96
96

Low Clouds (% Sky Obscured)

84
74
53
29
9
6
2
1
1
4
2
2
2
0
0
0
0
0
5
8
16
24
37
43

Medium Clouds (% Sky Obscured)

0
0
1
2
3
2
2
0
0
0
0
0
2
20
23
13
0
15
33
53
50
44
40
35

High Clouds (% Sky Obscured)

0
0
2
2
2
2
0
0
0
1
0
0
0
1
6
12
26
46
50
50
35
25
30
30

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
8
7

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 (%)

13
7
9
7
4
3
2
2
2
1
1
2
2
1
3
2
1
2
2
3
4
4
2
9

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

83
84
86
88
88
88
89
89
91
92
92
91
86
81
80
82
83
85
88
89
91
91
91
91

Pressure (mb)

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

Ozone (du)

368
368
368
367
366
366
365
365
364
363
363
365
366
365
368
369
370
370
370
371
371
372
373
374

Friday 26

Waxing Crescent 50%

11:45

23:29

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

Sun - Rise: 08:16, Set: 16:18, Transit: 12:17. Moon - Rise: 11:45, Set: 23:29. Civil Dark: 16:57 - 07:37. Nautical Dark: 17:39 - 06:55. Astro Dark: 18:19 - 06:16

Total Clouds (% Sky Obscured)

100
96
91
86
85
74
48
34
13
10
31
42
52
67
62
64
75
76
76
73
76
79
82
83

Low Clouds (% Sky Obscured)

49
47
28
24
19
14
17
11
8
8
12
25
39
53
57
58
62
69
72
73
76
79
82
83

Medium Clouds (% Sky Obscured)

35
30
27
24
28
20
15
3
3
3
3
11
23
33
25
19
14
7
3
0
0
0
0
0

High Clouds (% Sky Obscured)

30
35
24
11
2
1
0
0
2
4
7
6
4
3
2
1
0
0
0
0
0
0
0
1

ISS Passover

Visibility (miles)

5
4
2
4
7
9
7
6
4
6
7
9
9
9
9
9
9
9
8
7
6
6
5
5

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
5
8
8
5
8
7
4
7
7
4
4
4
2
2
1
0
0
0
0
0
1
0
1

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)

20
20
19
18
18
17
18
18
19
19
19
19
20
20
21
22
22
23
22
22
21
21
21
20

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

91
93
93
91
91
89
91
91
93
91
89
88
83
80
76
79
79
81
85
88
93
91
93
93

Pressure (mb)

1034
1034
1034
1034
1035
1035
1035
1035
1035
1036
1036
1037
1037
1037
1037
1036
1036
1036
1037
1037
1037
1037
1038
1038

Ozone (du)

372
371
370
369
367
366
363
361
358
360
361
363
360
357
354
352
349
347
344
342
339
339
338
338

Saturday 27

First Quarter 61%

11:58

00:48

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 OK
16 OK
17 Good

Sun - Rise: 08:16, Set: 16:19, Transit: 12:18. Moon - Rise: 11:58, Set: 00:48. Civil Dark: 16:58 - 07:38. Nautical Dark: 17:40 - 06:56. Astro Dark: 18:20 - 06:16

Total Clouds (% Sky Obscured)

84
84
87
89
91
93
94
94
88
84
80
74
69
63
60
57
48
41
24
7

Low Clouds (% Sky Obscured)

84
84
87
87
84
87
92
94
88
82
76
74
69
63
60
57
48
41
24
7

Medium Clouds (% Sky Obscured)

0
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
0
0
0
3
7
20
30
40
43
31
15
1
0
0
0
0
0
0

ISS Passover

Visibility (miles)

6
7
9
7
5
3
3
2
2
3
4
5
7
8
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 (%)

1
0
2
2
0
2
2
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
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

5
5
5
4
4
3
3
3
3
3
3
3
4
4
5
5
5
5
5
4

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

93
93
91
91
93
93
91
93
93
91
91
91
89
88
86
86
85
85
83
83

Pressure (mb)

1038
1038
1038
1038
1038
1038
1038
1038
1038
1038
1038
1039
1039
1039
1038
1038
1038
1037
1037
1037

Ozone (du)

337
335
334
332
331
329
328
328
327
326
326
326
325
325
324
323
322
320
320
320

Forecast for Yelverton, Devon, United Kingdom (50.47,-4.09)

Generated: 21/12/25 22:16:35. Forecast: 21/12/25 to 27/12/25. Timezone: UTC+0.00