Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 30

Waxing Gibbous 77%

13:42

02:59

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: 07:50, Set: 16:01, Transit: 11:56. Moon - Rise: 13:42, Set: 02:59. Civil Dark: 16:40 - 07:11. Nautical Dark: 17:22 - 06:29. Astro Dark: 18:02 - 05:49

Total Clouds (% Sky Obscured)

80
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)

0
29
32
71
91
88
81
86
99
90
82
85
92
86
92
92
100
84
93
97
93
92
97
70

Medium Clouds (% Sky Obscured)

80
94
100
93
100
100
95
100
99
100
100
96
96
100
100
88
78
66
87
97
100
100
100
100

High Clouds (% Sky Obscured)

80
90
96
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
84
100
100
100
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
8
6
5
7
5
4
3
3
9
9
6
9
9
9
9
9
4
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
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

1
1
9
36
51
62
80
95
95
95
95
95
95
95
90
95
89
75
95
95
95
95
95
95

Precipitation Amount (mm)

0
0
0
0
0
0.3
0.5
0.8
0.8
0.8
1.3
1.3
1.1
0.9
0.6
1.1
0.8
0.4
0.8
0.9
1.4
1.8
2
1.5

Wind Speed/Direction (mph)

7
7
8
11
13
15
17
20
22
23
22
22
22
21
21
21
22
21
22
22
23
24
26
23

Chance of Frost

Temperature (°C)

5
5
6
6
6
7
7
8
9
9
9
10
10
11
11
11
12
12
12
12
12
12
12
12

Feels Like (°C)

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

Dew Point (°C)

4
4
3
4
4
5
5
7
7
8
8
9
10
10
10
11
11
11
11
11
11
11
11
10

Relative Humidity (%)

91
91
85
85
84
87
87
91
91
93
93
95
95
95
93
95
95
95
93
95
95
95
93
87

Pressure (mb)

1014
1013
1012
1012
1011
1009
1008
1007
1005
1004
1003
1003
1002
1002
1001
1000
999
998
997
996
995
995
994
994

Ozone (du)

289
286
283
283
281
280
278
275
273
271
268
267
267
267
267
266
265
265
266
267
268
270
270
271

Monday 1

Waxing Gibbous 86%

14:00

04:29

20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 OK
04 OK
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: 07:52, Set: 16:01, Transit: 11:56. Moon - Rise: 14:00, Set: 04:29. Civil Dark: 16:39 - 07:13. Nautical Dark: 17:22 - 06:30. Astro Dark: 18:02 - 05:50

Total Clouds (% Sky Obscured)

100
100
68
76
65
60
46
29
33
58
65
78
76
71
65
65
41
68
71
87
94
77
63
81

Low Clouds (% Sky Obscured)

71
66
68
76
65
60
46
29
29
35
53
71
76
71
65
65
41
50
51
75
88
58
63
63

Medium Clouds (% Sky Obscured)

94
100
36
40
19
37
30
29
33
24
11
7
2
2
3
2
26
55
70
80
73
22
3
15

High Clouds (% Sky Obscured)

100
50
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)

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

Precipitation Probability (%)

49
70
43
18
1
0
3
3
2
1
0
0
0
0
1
6
32
46
65
52
31
15
0
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

19
19
18
15
14
12
11
11
10
9
8
7
7
7
8
10
10
11
10
10
10
11
9
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

10
9
9
7
7
6
5
5
5
5
5
5
5
5
5
5
6
6
6
6
5
5
5
5

Relative Humidity (%)

91
88
90
88
93
93
91
91
91
93
93
93
93
93
88
84
82
84
85
87
87
88
91
93

Pressure (mb)

995
995
996
997
998
999
1000
1000
1001
1001
1002
1002
1003
1003
1003
1003
1003
1003
1003
1003
1003
1004
1004
1005

Ozone (du)

272
277
284
288
290
293
294
296
296
297
299
301
302
302
303
302
302
302
305
305
306
307
308
309

Tuesday 2

Waxing Gibbous 94%

14:24

06:04

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

Sun - Rise: 07:53, Set: 16:00, Transit: 11:57. Moon - Rise: 14:24, Set: 06:04. Civil Dark: 16:39 - 07:14. Nautical Dark: 17:21 - 06:32. Astro Dark: 18:02 - 05:51

Total Clouds (% Sky Obscured)

61
73
56
86
69
42
30
27
25
22
30
42
45
47
51
55
51
42
33
63
62
46
84
91

Low Clouds (% Sky Obscured)

61
68
56
63
43
30
30
27
25
22
30
42
44
38
45
52
45
39
33
35
41
46
50
49

Medium Clouds (% Sky Obscured)

0
2
0
17
18
8
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3
66
85

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
13
7
2
40
70

ISS Passover

Visibility (miles)

9
9
9
9
9
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
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
2
5
5
23
15
2
6
6
4
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)

7
7
7
7
7
7
7
7
7
7
7
7
6
6
7
9
10
10
10
8
7
6
6
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

91
88
88
88
88
88
86
88
86
89
91
91
93
91
88
87
85
84
82
85
91
93
93
93

Pressure (mb)

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

Ozone (du)

309
310
312
314
317
320
320
317
312
311
311
311
313
315
318
320
316
316
316
309
310
313
314
311

Wednesday 3

Waxing Gibbous 98%

14:59

07:39

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 Bad
17 Bad
18 Bad
19 Bad

Sun - Rise: 07:54, Set: 16:00, Transit: 11:57. Moon - Rise: 14:59, Set: 07:39. Civil Dark: 16:39 - 07:15. Nautical Dark: 17:21 - 06:33. Astro Dark: 18:01 - 05:52

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
79
59
37
39
40
42
37
43

Low Clouds (% Sky Obscured)

45
52
57
62
64
65
72
78
82
87
91
96
100
81
62
30
29
31
34
39
40
39
36
37

Medium Clouds (% Sky Obscured)

100
100
100
100
98
98
99
99
100
100
100
100
90
98
75
97
69
33
37
4
0
0
1
0

High Clouds (% Sky Obscured)

100
100
100
100
71
39
8
18
27
43
61
79
100
91
82
86
61
39
1
1
8
1
1
6

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
3
3
6
3
5
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
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
None
None
None
None
None
None
None
None

Precipitation Probability (%)

6
24
20
4
5
6
12
16
33
60
93
95
95
95
89
62
42
20
5
8
13
5
5
4

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0.6
0.8
1.1
1.1
0.6
0.3
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

7
8
9
10
11
12
13
14
15
15
15
16
16
16
12
7
6
7
7
7
6
5
5
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

91
90
90
91
88
87
88
90
88
88
90
91
90
91
94
87
84
82
82
85
90
90
90
93

Pressure (mb)

1006
1006
1005
1004
1004
1003
1002
1001
1000
1000
999
999
998
998
999
999
1000
1000
1001
1001
1002
1003
1004
1004

Ozone (du)

309
309
312
313
310
308
309
311
310
312
313
316
323
330
332
331
332
331
335
336
337
336
340
342

Thursday 4

Full Moon 100%

15:52

09:06

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: 07:56, Set: 15:59, Transit: 11:57. Moon - Rise: 15:52, Set: 09:06. Civil Dark: 16:38 - 07:16. Nautical Dark: 17:21 - 06:34. Astro Dark: 18:01 - 05:53

Total Clouds (% Sky Obscured)

55
67
83
96
97
96
99
100
100
100
95
95
93
80
70
59
73
86
100
100
100
100
94
87

Low Clouds (% Sky Obscured)

45
63
82
95
97
96
99
100
100
100
95
93
90
80
70
59
48
37
26
35
45
52
41
31

Medium Clouds (% Sky Obscured)

0
17
31
49
35
19
3
3
2
0
0
0
0
0
0
0
0
0
0
10
23
30
22
12

High Clouds (% Sky Obscured)

30
30
24
3
11
3
2
0
0
0
0
0
0
0
0
0
30
60
85
75
50
50
44
27

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
7
0
0
0
1
2
13
4
14
13
11
10
10
8
4
8
6
0
0
0
0
1
2

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

93
94
94
94
93
93
93
94
94
93
93
93
89
89
88
86
86
85
85
86
88
91
93
93

Pressure (mb)

1005
1006
1006
1007
1008
1008
1009
1010
1010
1010
1011
1012
1012
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013

Ozone (du)

342
344
343
343
343
343
344
345
344
344
345
347
350
352
352
352
353
346
340
333
327
322
316
311

Friday 5

Waning Gibbous 98%

17:04

10:14

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: 07:57, Set: 15:59, Transit: 11:58. Moon - Rise: 17:04, Set: 10:14. Civil Dark: 16:38 - 07:17. Nautical Dark: 17:21 - 06:35. Astro Dark: 18:01 - 05:54

Total Clouds (% Sky Obscured)

81
87
94
100
100
100
100
97
94
91
93
94
91
79
65
55
57
59
64
56
46
36
39
46

Low Clouds (% Sky Obscured)

25
45
57
68
80
86
92
89
85
83
82
79
75
62
55
50
46
43
40
39
39
36
38
38

Medium Clouds (% Sky Obscured)

10
21
32
43
64
83
100
94
89
87
81
75
66
54
42
30
21
14
6
5
3
1
1
0

High Clouds (% Sky Obscured)

0
25
49
71
48
24
0
0
0
10
35
40
40
42
31
29
25
24
30
20
10
1
12
22

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
7
5
3
2
2
1
4
7
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
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
None
None
None
None
None
None
None
None

Precipitation Probability (%)

1
4
10
12
31
42
52
69
83
95
95
95
95
95
95
66
30
15
9
10
8
6
2
1

Precipitation Amount (mm)

0
0
0
0
0
0
0
0.3
0.4
0.6
0.7
1
1.7
1.5
1.1
0.4
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

10
11
11
12
12
13
13
14
12
11
9
7
6
6
8
9
10
9
9
8
7
6
5
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

1
1
2
2
2
3
3
3
3
3
4
4
5
6
5
6
6
8
7
6
7
6
6
4

Dew Point (°C)

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

Relative Humidity (%)

90
90
91
91
94
94
93
93
93
95
96
96
96
96
93
88
84
87
87
90
91
91
93
93

Pressure (mb)

1013
1013
1012
1012
1011
1011
1010
1010
1009
1009
1009
1009
1010
1010
1010
1011
1011
1012
1012
1013
1013
1014
1015
1015

Ozone (du)

305
300
298
296
295
294
293
293
296
299
302
303
305
306
308
309
311
308
306
303
302
300
299
295

Saturday 6

Waning Gibbous 93%

18:30

11:00

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: 07:58, Set: 15:58, Transit: 11:58. Moon - Rise: 18:30, Set: 11:00. Civil Dark: 16:38 - 07:18. Nautical Dark: 17:21 - 06:36. Astro Dark: 18:01 - 05:55

Total Clouds (% Sky Obscured)

50
63
77
93
90
87
84
89
94
100
95
90
86
90
95
99

Low Clouds (% Sky Obscured)

39
40
43
45
46
41
42
29
19
11
11
8
13
16
18
17

Medium Clouds (% Sky Obscured)

0
0
0
0
9
21
31
33
34
30
33
32
30
32
45
51

High Clouds (% Sky Obscured)

33
53
74
93
90
87
84
89
94
100
95
90
86
90
95
99

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
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
1
7
11
19

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

5
5
4
4
4
4
4
4
4
4
4
4
4
4
5
7

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

93
91
93
93
91
91
91
91
91
91
91
91
91
91
90
87

Pressure (mb)

1016
1016
1017
1017
1017
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018

Ozone (du)

292
288
285
282
279
278
278
277
279
281
282
282
282
281
281
281

Forecast for Marlborough, Wiltshire, United Kingdom (51.42,-1.73)

Generated: 30/11/25 19:59:31. Forecast: 30/11/25 to 06/12/25. Timezone: UTC+0.00