Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 28

First Quarter 66%

13:23

00:21

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 Bad
18 Bad
19 Bad
20 OK

Sun - Rise: 07:52, Set: 16:13, Transit: 12:02. Moon - Rise: 13:23, Set: 00:21. Civil Dark: 16:51 - 07:14. Nautical Dark: 17:32 - 06:32. Astro Dark: 18:11 - 05:53

Total Clouds (% Sky Obscured)

97
98
96
100
100
100
100
100
100
100
100
100
69
56
47
45
36
22
16
36
58
47
48
29

Low Clouds (% Sky Obscured)

67
73
72
79
100
100
100
100
99
53
75
60
48
52
47
45
36
22
16
36
53
43
48
29

Medium Clouds (% Sky Obscured)

97
98
80
99
55
82
93
93
100
100
100
73
69
4
3
0
0
3
3
3
16
19
8
0

High Clouds (% Sky Obscured)

97
79
57
25
29
30
37
100
100
100
100
100
69
17
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

9
9
8
7
9
8
5
2
3
2
9
9
9
9
9
9
9
7
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
Light Rain
Very Light Rain
Very Light Rain
Light Rain
Light Rain
Light Rain
Moderate Rain
Light Rain
Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

93
95
79
84
95
95
95
95
95
95
33
32
44
14
10
22
25
16
5
3
4
2
2
0

Precipitation Amount (mm)

0.5
0.9
0.3
0.3
0.5
0.9
2.2
2.7
1.3
0.8
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

9
10
16
17
17
16
16
13
9
8
8
10
11
11
11
12
12
11
10
7
7
7
8
10

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

7
9
8
9
10
9
10
10
9
9
8
7
7
6
5
5
5
5
5
4
4
4
4
4

Relative Humidity (%)

83
87
84
86
90
88
91
93
93
93
91
88
88
87
79
74
74
77
78
84
88
91
93
91

Pressure (mb)

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

Ozone (du)

288
291
293
297
297
297
298
298
301
303
307
314
322
330
335
334
335
339
345
350
350
345
344
344

Saturday 29

Waxing Gibbous 77%

13:36

01:42

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

Sun - Rise: 07:53, Set: 16:12, Transit: 12:03. Moon - Rise: 13:36, Set: 01:42. Civil Dark: 16:50 - 07:15. Nautical Dark: 17:31 - 06:34. Astro Dark: 18:11 - 05:54

Total Clouds (% Sky Obscured)

24
45
32
31
17
23
11
11
39
49
80
65
59
41
45
37
35
98
98
100
100
100
100
100

Low Clouds (% Sky Obscured)

24
45
32
31
17
23
11
11
39
41
58
28
12
15
32
34
0
36
33
4
40
42
64
63

Medium Clouds (% Sky Obscured)

0
0
0
2
0
0
0
0
6
29
23
18
19
0
8
0
27
71
64
49
91
77
92
95

High Clouds (% Sky Obscured)

0
1
0
2
0
0
0
0
0
0
0
0
0
0
1
2
4
42
83
100
100
100
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
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
0
0
0
0
1
2
4
3
6
9
6
23
8
10
7
6
4
6
40

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
12
12
11
8
6
5
5
5
4
3
3
3
3
3
5
7
8
7
6
6
8
7
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

82
82
79
79
83
88
86
86
88
88
88
83
80
79
81
73
72
74
81
87
87
82
85
85

Pressure (mb)

1009
1010
1011
1012
1013
1014
1014
1015
1016
1016
1017
1017
1018
1018
1018
1017
1017
1016
1016
1016
1015
1015
1015
1014

Ozone (du)

345
337
334
337
336
338
340
346
341
336
334
330
325
322
318
316
312
308
304
301
299
298
295
291

Sunday 30

Waxing Gibbous 86%

13:51

03:06

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
20 Bad

Sun - Rise: 07:54, Set: 16:11, Transit: 12:03. Moon - Rise: 13:51, Set: 03:06. Civil Dark: 16:50 - 07:16. Nautical Dark: 17:31 - 06:35. Astro Dark: 18:11 - 05:55

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

82
99
95
100
85
91
92
88
90
87
81
87
66
76
81
82
82
82
83
83
81
76
70
68

Medium Clouds (% Sky Obscured)

99
99
100
100
100
93
90
100
100
100
100
100
100
100
100
100
100
100
100
85
100
99
100
100

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
99
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

ISS Passover

Visibility (miles)

9
9
9
7
6
9
9
9
9
9
9
9
9
9
9
9
9
9
8
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
Very Light Rain
Light Rain
Light Rain
None
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
None
None
None
None
None
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

56
68
95
95
81
95
95
95
95
95
95
50
35
28
45
44
56
86
95
95
95
95
95
95

Precipitation Amount (mm)

0
0.2
0.4
0.5
0
0.5
0.4
0.4
0.6
0.9
0.5
0
0
0
0
0
0.2
0.5
0.7
0.7
0.7
0.8
0.6
0.7

Wind Speed/Direction (mph)

10
12
15
18
19
20
19
20
20
21
21
21
22
21
21
22
21
21
21
18
16
18
17
16

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

82
77
77
82
88
88
91
90
90
92
93
92
92
92
92
92
92
92
90
92
90
90
87
88

Pressure (mb)

1013
1012
1011
1010
1009
1008
1007
1005
1004
1003
1003
1003
1002
1002
1001
1000
1000
999
998
997
997
996
996
996

Ozone (du)

287
284
280
275
271
270
269
267
266
265
266
265
264
262
261
262
263
263
264
265
266
268
268
268

Monday 1

Waxing Gibbous 86%

14:10

04:34

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
20 Bad

Sun - Rise: 07:56, Set: 16:11, Transit: 12:03. Moon - Rise: 14:10, Set: 04:34. Civil Dark: 16:49 - 07:17. Nautical Dark: 17:31 - 06:36. Astro Dark: 18:10 - 05:56

Total Clouds (% Sky Obscured)

100
100
100
100
100
91
85
76
66
77
85
97
97
96
76
71
73
93
87
95
97
96
91
96

Low Clouds (% Sky Obscured)

58
49
41
40
35
35
41
43
51
51
55
58
62
64
35
33
32
30
30
35
35
36
37
39

Medium Clouds (% Sky Obscured)

65
89
100
90
97
53
34
53
55
64
79
92
52
58
67
51
42
71
49
52
78
84
62
68

High Clouds (% Sky Obscured)

100
100
100
79
70
65
47
23
0
0
0
0
11
21
32
43
50
55
60
65
65
60
60
60

ISS Passover

Visibility (miles)

7
3
7
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

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

Precipitation Probability (%)

95
95
44
41
40
14
20
19
19
27
22
14
23
21
13
30
28
24
29
28
14
23
20
11

Precipitation Amount (mm)

1.1
1
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
16
17
13
13
10
10
11
9
10
9
9
8
9
11
12
11
10
9
8
7
6
6
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

2
2
2
3
2
4
4
3
3
5
4
5
6
7
7
8
9
10
8
8
7
6
6
7

Dew Point (°C)

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

Relative Humidity (%)

88
91
88
87
84
84
84
81
85
87
81
84
84
82
77
74
72
76
80
84
85
85
87
87

Pressure (mb)

995
995
994
995
995
995
996
997
997
998
999
1000
1001
1001
1002
1002
1002
1003
1003
1004
1005
1005
1006
1007

Ozone (du)

268
268
272
280
285
289
294
298
302
305
307
310
310
310
311
311
311
311
311
311
310
309
308
307

Tuesday 2

Waxing Gibbous 94%

14:35

06:08

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

Sun - Rise: 07:57, Set: 16:10, Transit: 12:04. Moon - Rise: 14:35, Set: 06:08. Civil Dark: 16:49 - 07:19. Nautical Dark: 17:30 - 06:37. Astro Dark: 18:10 - 05:57

Total Clouds (% Sky Obscured)

81
63
42
41
42
41
43
47
49
63
56
50
47
47
45
38
29
20
32
46
61
72
84
96

Low Clouds (% Sky Obscured)

39
40
39
40
39
40
43
45
47
48
47
48
47
45
45
38
29
20
27
30
34
42
49
57

Medium Clouds (% Sky Obscured)

69
63
12
4
24
28
19
38
49
63
56
46
30
16
2
1
1
0
1
1
2
18
31
42

High Clouds (% Sky Obscured)

50
27
0
1
1
2
1
1
0
2
1
0
0
0
0
1
1
2
10
19
20
26
39
52

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 (%)

16
15
9
14
12
5
7
6
3
4
4
2
5
6
2
5
6
3
10
10
4
6
6
5

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

7
4
4
5
5
3
3
3
3
2
3
3
3
3
4
4
10
9
9
9
9
8
3
3

Dew Point (°C)

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

Relative Humidity (%)

87
86
88
88
88
86
88
88
88
88
88
88
86
85
81
78
81
82
85
85
87
88
88
86

Pressure (mb)

1007
1007
1008
1008
1009
1009
1009
1010
1010
1010
1010
1010
1011
1011
1011
1011
1010
1010
1010
1010
1009
1009
1009
1008

Ozone (du)

306
307
310
315
321
327
326
323
320
316
314
311
308
308
307
306
307
307
308
308
308
309
308
308

Wednesday 3

Waxing Gibbous 98%

15:11

07:42

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 OK
18 Bad
19 Bad
20 Bad

Sun - Rise: 07:58, Set: 16:10, Transit: 12:04. Moon - Rise: 15:11, Set: 07:42. Civil Dark: 16:48 - 07:20. Nautical Dark: 17:30 - 06:38. Astro Dark: 18:10 - 05:58

Total Clouds (% Sky Obscured)

96
97
99
98
98
98
98
99
100
100
100
100
96
94
91
82
72
63
53
43
34
47
58
68

Low Clouds (% Sky Obscured)

54
53
53
51
45
45
54
70
80
75
65
51
42
39
39
46
45
41
37
34
31
40
50
60

Medium Clouds (% Sky Obscured)

55
71
89
85
82
79
86
92
99
95
89
83
56
29
2
6
11
15
9
5
0
2
3
5

High Clouds (% Sky Obscured)

66
80
94
66
37
8
39
71
100
100
100
100
86
72
57
38
19
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
7
5
3
5
7
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
Light Rain
Light Rain
Light Rain
Moderate Rain
Moderate Rain
Light Rain
Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

13
17
16
24
26
23
50
77
95
95
95
95
95
95
62
49
37
24
29
29
19
16
14
5

Precipitation Amount (mm)

0
0
0
0
0
0
0
0.4
0.7
2.2
3.5
5
2
1
0.3
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

5
6
8
10
12
14
16
19
21
23
19
15
16
14
14
16
13
11
8
7
6
5
4
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

86
87
85
85
82
81
80
82
85
88
88
91
93
90
85
84
82
79
78
81
83
85
83
82

Pressure (mb)

1008
1006
1005
1004
1002
1001
999
998
996
994
993
991
989
991
992
994
995
995
995
996
996
997
997
997

Ozone (du)

308
308
308
308
310
311
313
317
322
327
333
338
344
350
357
363
373
383
392
395
397
399
402
404

Thursday 4

Full Moon 100%

16:05

09:08

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: 07:59, Set: 16:10, Transit: 12:04. Moon - Rise: 16:05, Set: 09:08. Civil Dark: 16:48 - 07:21. Nautical Dark: 17:30 - 06:39. Astro Dark: 18:10 - 05:59

Total Clouds (% Sky Obscured)

62
55
52
57
52
57
52
51
44
57
70
90
92
92
92

Low Clouds (% Sky Obscured)

62
55
52
57
52
57
52
51
44
49
53
62
56
50
44

Medium Clouds (% Sky Obscured)

5
2
0
1
1
2
13
27
44
39
31
20
25
30
40

High Clouds (% Sky Obscured)

0
0
0
15
31
49
52
51
44
54
51
73
88
89
90

ISS Passover

Visibility (miles)

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

Precipitation Type

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

Precipitation Probability (%)

10
11
6
9
9
5
14
15
11
26
32
34
32
28
18

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

3
3
3
3
3
3
3
3
3
2
3
3
3
3
3

Dew Point (°C)

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

Relative Humidity (%)

82
82
83
83
85
88
89
89
91
91
93
93
93
91
87

Pressure (mb)

998
998
998
998
998
999
999
999
999
999
999
999
1000
999
999

Ozone (du)

407
399
391
382
375
368
361
355
349
343
338
332
326
321
315

Welcome to Clear Outside

Forecast for Alphington, Devon, United Kingdom (50.70,-3.52)

Generated: 28/11/25 20:14:32. Forecast: 28/11/25 to 04/12/25. Timezone: UTC+0.00