Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 18

Waning Crescent 1%

08:16

15:07

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 Bad
09 Bad
10 OK
11 Bad
12 Good
13 Good
14 OK
15 OK
16 OK
17 OK
18 Bad
19 Bad

Sun - Rise: 08:12, Set: 16:12, Transit: 12:12. Moon - Rise: 08:16, Set: 15:07. Civil Dark: 16:51 - 07:33. Nautical Dark: 17:33 - 06:51. Astro Dark: 18:13 - 06:11

Total Clouds (% Sky Obscured)

100
100
96
100
100
100
100
100
78
22
32
28
36
32
32
43
7
5
18
26
33
20
35
38

Low Clouds (% Sky Obscured)

26
30
21
2
8
11
0
14
20
21
27
24
33
31
30
43
7
4
18
26
33
20
35
38

Medium Clouds (% Sky Obscured)

83
77
80
100
100
8
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

100
87
86
100
100
100
100
100
19
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
1
2
7
6
6
7
6
4
6
6
5
7
3
7
5
5
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)

13
10
8
12
11
11
12
12
12
12
12
11
10
11
11
12
14
13
12
9
7
5
5
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

88
90
85
85
84
79
79
79
82
84
87
87
88
88
84
84
83
81
80
82
87
91
90
90

Pressure (mb)

1002
1003
1005
1007
1008
1009
1010
1011
1011
1012
1013
1014
1015
1016
1016
1017
1017
1017
1017
1017
1018
1018
1018
1018

Ozone (du)

359
365
365
367
370
370
368
366
372
378
384
382
383
372
364
360
347
331
312
302
293
291
289
289

Friday 19

Waning Crescent 0%

09:10

16:01

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
18 Bad
19 Bad

Sun - Rise: 08:13, Set: 16:13, Transit: 12:13. Moon - Rise: 09:10, Set: 16:01. Civil Dark: 16:51 - 07:34. Nautical Dark: 17:34 - 06:52. Astro Dark: 18:13 - 06:12

Total Clouds (% Sky Obscured)

47
56
52
46
58
43
75
43
53
45
43
80
81
76
79
82
80
84
87
97
99
100
100
100

Low Clouds (% Sky Obscured)

47
56
52
46
58
43
33
43
53
45
43
61
64
57
56
63
62
54
53
54
66
65
73
74

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
63
0
0
0
0
0
0
25
15
8
13
43
55
54
94
96
100
100

High Clouds (% Sky Obscured)

0
0
0
0
0
2
2
2
3
5
5
45
60
60
70
75
65
65
70
90
98
100
100
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
4
4
3
3
3
0
2

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
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Moderate Rain
Moderate Rain
Light Rain

Precipitation Probability (%)

10
7
6
16
6
13
15
25
11
20
5
10
8
5
17
23
55
87
94
95
95
95
95
95

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.8
0.8
1
1.2
2.7
3.4
2.2

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

90
90
90
90
87
85
84
82
81
82
81
78
77
80
76
77
78
84
91
93
95
93
98
95

Pressure (mb)

1018
1017
1017
1016
1016
1015
1014
1013
1012
1012
1011
1011
1010
1010
1009
1008
1007
1006
1006
1005
1004
1004
1003
1004

Ozone (du)

288
290
290
289
283
285
284
286
288
291
295
301
303
306
311
315
316
311
308
307
309
311
315
324

Saturday 20

New Moon 2%

09:51

17:07

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
18 Bad
19 Bad

Sun - Rise: 08:13, Set: 16:13, Transit: 12:13. Moon - Rise: 09:51, Set: 17:07. Civil Dark: 16:52 - 07:34. Nautical Dark: 17:34 - 06:52. Astro Dark: 18:14 - 06:12

Total Clouds (% Sky Obscured)

100
90
97
100
98
87
94
99
100
100
100
100
100
100
97
92
96
98
95
98
99
99
99
100

Low Clouds (% Sky Obscured)

69
72
69
62
49
46
43
64
93
92
92
90
89
81
78
58
56
62
68
79
90
97
95
93

Medium Clouds (% Sky Obscured)

100
60
65
100
65
41
70
94
100
100
89
72
73
71
88
70
81
90
66
63
61
60
58
60

High Clouds (% Sky Obscured)

100
52
55
97
84
33
53
64
100
100
99
100
100
100
60
50
75
61
75
63
41
32
41
42

ISS Passover

Visibility (miles)

5
9
9
9
9
9
9
9
9
9
6
6
2
0
4
9
9
9
9
9
9
7
9
7

Fog (%)

0
0
0
2
78
40
10
2
5
5
2
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

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

Precipitation Probability (%)

83
24
15
18
21
12
6
13
29
68
95
95
95
78
61
25
20
31
33
36
38
35
38
50

Precipitation Amount (mm)

0.4
0
0
0
0
0
0
0
0
0.3
0.7
1
1.4
0.3
0.3
0
0
0
0
0
0
0
0
0.2

Wind Speed/Direction (mph)

9
8
7
7
6
6
5
5
5
7
6
7
6
6
10
11
11
11
14
15
16
16
15
15

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

5
7
7
7
7
7
7
6
6
5
5
5
5
7
5
5
5
5
3
3
2
2
3
3

Dew Point (°C)

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

Relative Humidity (%)

91
93
93
93
91
90
90
90
91
91
93
95
98
100
90
84
81
78
74
77
80
87
81
84

Pressure (mb)

1003
1003
1003
1003
1002
1002
1002
1002
1002
1002
1001
1001
1001
1001
1001
1001
1001
1001
1001
1001
1001
1000
1000
1000

Ozone (du)

344
355
327
327
328
338
357
373
391
404
410
414
413
411
417
424
430
434
441
442
440
439
442
447

Sunday 21

Waxing Crescent 6%

10:22

18:21

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
18 Bad
19 Bad

Sun - Rise: 08:13, Set: 16:14, Transit: 12:14. Moon - Rise: 10:22, Set: 18:21. Civil Dark: 16:53 - 07:35. Nautical Dark: 17:35 - 06:53. Astro Dark: 18:14 - 06:13

Total Clouds (% Sky Obscured)

100
100
100
99
98
47
58
73
76
82
80
75
75
94
66
58
69
93
92
92
91
91
92
96

Low Clouds (% Sky Obscured)

91
93
96
98
91
47
58
71
73
77
70
69
66
54
51
47
46
44
42
50
52
59
66
74

Medium Clouds (% Sky Obscured)

58
52
89
48
46
42
41
38
36
33
28
17
10
12
11
10
33
71
70
63
45
40
41
37

High Clouds (% Sky Obscured)

55
46
31
21
18
14
10
19
34
46
32
12
14
58
59
58
59
44
31
30
40
32
19
39

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

45
51
59
66
45
26
22
18
14
5
8
15
24
23
24
29
30
26
21
29
36
38
42
29

Precipitation Amount (mm)

0
0
0.3
0.4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0

Wind Speed/Direction (mph)

15
16
15
15
15
15
14
14
14
13
12
11
10
10
9
8
8
7
7
6
6
6
7
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

78
78
82
84
87
80
77
78
79
82
84
87
87
85
84
80
76
77
78
82
85
88
91
93

Pressure (mb)

1001
1002
1002
1002
1003
1003
1003
1004
1004
1004
1004
1005
1006
1007
1007
1007
1007
1008
1008
1008
1009
1009
1009
1010

Ozone (du)

448
446
439
436
434
435
437
440
440
438
438
438
436
436
438
438
440
440
438
435
430
426
420
414

Monday 22

Waxing Crescent 12%

10:45

19:37

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
18 Bad
19 Bad

Sun - Rise: 08:14, Set: 16:14, Transit: 12:14. Moon - Rise: 10:45, Set: 19:37. Civil Dark: 16:53 - 07:35. Nautical Dark: 17:35 - 06:53. Astro Dark: 18:15 - 06:13

Total Clouds (% Sky Obscured)

99
98
98
97
96
96
95
97
98
100
88
92
98
98
99
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

78
79
80
79
84
90
91
96
98
100
77
80
82
86
86
91
94
90
90
91
94
99
95
92

Medium Clouds (% Sky Obscured)

16
23
39
42
40
33
35
57
82
100
84
74
64
71
59
68
77
90
98
92
85
78
83
87

High Clouds (% Sky Obscured)

47
31
21
15
26
34
43
62
81
100
31
37
44
62
79
99
99
100
100
84
56
24
33
47

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 (%)

8
4
3
1
1
1
8
3
15
1
2
1
0
1
1
1
7
10
11
13
15
15
16
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)

6
7
8
8
9
11
12
13
14
14
15
14
14
14
15
16
17
18
18
18
18
18
19
19

Chance of Frost

Temperature (°C)

7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
6

Feels Like (°C)

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

Dew Point (°C)

6
5
5
4
4
4
4
4
4
5
4
4
4
4
4
4
4
4
4
4
4
4
4
4

Relative Humidity (%)

90
87
85
84
84
84
84
85
84
85
81
81
79
81
79
79
78
78
77
77
78
81
82
85

Pressure (mb)

1010
1010
1010
1010
1010
1010
1010
1011
1011
1011
1011
1011
1012
1012
1012
1013
1013
1013
1013
1013
1014
1014
1015
1015

Ozone (du)

408
403
400
397
392
388
387
385
380
378
378
375
372
370
372
374
376
379
382
384
385
385
386
387

Tuesday 23

Waxing Crescent 19%

11:03

No Set

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
18 Bad
19 Bad

Sun - Rise: 08:14, Set: 16:15, Transit: 12:15. Moon - Rise: 11:03, Set: No Set. Civil Dark: 16:54 - 07:35. Nautical Dark: 17:36 - 06:53. Astro Dark: 18:16 - 06:13

Total Clouds (% Sky Obscured)

100
99
99
99
94
90
88
84
83
81
80
78
79
82
86
90
72
58
48
58
78
81
87
90

Low Clouds (% Sky Obscured)

89
91
93
95
92
89
83
83
78
76
72
71
69
74
79
84
72
58
48
58
67
72
71
71

Medium Clouds (% Sky Obscured)

88
74
49
25
13
11
10
15
20
27
48
55
57
39
21
3
19
33
48
35
19
1
3
9

High Clouds (% Sky Obscured)

59
66
76
86
57
31
6
4
4
5
17
30
42
48
57
65
43
22
0
0
0
1
1
0

ISS Passover

Visibility (miles)

9
9
9
9
9
7
4
1
4
7
9
8
6
5
6
8
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 (%)

21
17
15
9
13
13
10
11
10
5
13
15
14
16
17
18
20
23
26
25
22
15
13
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)

20
20
20
20
20
19
19
19
19
20
20
20
20
19
20
21
22
22
22
22
22
22
22
22

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

88
91
91
91
91
93
94
96
94
94
93
93
94
96
93
88
86
86
88
88
86
82
80
79

Pressure (mb)

1016
1016
1017
1017
1017
1018
1018
1019
1019
1020
1020
1020
1021
1021
1021
1021
1021
1022
1022
1022
1022
1022
1022
1022

Ozone (du)

388
389
388
387
386
385
383
382
382
382
381
380
379
378
383
388
394
390
386
382
381
381
380
377

Wednesday 24

Waxing Crescent 28%

11:18

20:54

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: 08:15, Set: 16:16, Transit: 12:15. Moon - Rise: 11:18, Set: 20:54. Civil Dark: 16:54 - 07:36. Nautical Dark: 17:36 - 06:54. Astro Dark: 18:16 - 06:14

Total Clouds (% Sky Obscured)

92
94
96
99
98
98
98
98
99
99
94
90
85
64
43
17

Low Clouds (% Sky Obscured)

72
68
65
61
70
83
88
93
96
99
94
90
85
64
43
17

Medium Clouds (% Sky Obscured)

16
30
42
55
51
48
40
39
42
55
38
21
4
24
43
17

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
6
11
17

ISS Passover

Visibility (miles)

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

Precipitation Type

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

Precipitation Probability (%)

3
17
19
18
28
32
33
38
42
43
47
47
46
41
37
34

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0.1
0.2
0.2
0.3
0.3
0.2
0
0

Wind Speed/Direction (mph)

22
22
21
21
21
20
19
19
19
18
18
18
19
19
19
19

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

79
77
77
77
76
77
77
77
77
78
78
79
79
79
76
73

Pressure (mb)

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

Ozone (du)

374
371
368
366
363
361
359
357
356
355
353
351
349
347
346
346

Forecast for Buckfastleigh, Devon, United Kingdom (50.48,-3.78)

Generated: 18/12/25 20:16:54. Forecast: 18/12/25 to 24/12/25. Timezone: UTC+0.00