Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 27

Waxing Crescent 44%

13:08

22:57

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

Sun - Rise: 07:50, Set: 16:07, Transit: 11:58. Moon - Rise: 13:08, Set: 22:57. Civil Dark: 16:46 - 07:11. Nautical Dark: 17:28 - 06:29. Astro Dark: 18:08 - 05:49

Total Clouds (% Sky Obscured)

100
100
98
100
94
77
71
74
100
99
100
99
100
100
100
100
96
6
29
31
59
91
94
67

Low Clouds (% Sky Obscured)

77
95
98
100
89
60
68
59
57
51
55
57
36
57
42
46
47
6
11
31
55
83
62
40

Medium Clouds (% Sky Obscured)

6
21
70
53
11
0
0
7
8
57
60
96
100
89
63
3
0
0
11
0
5
29
24
16

High Clouds (% Sky Obscured)

87
87
39
57
34
25
51
74
100
95
91
79
100
100
98
100
93
0
0
0
0
3
4
67

ISS Passover

Visibility (miles)

9
9
2
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
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
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
Light Rain
Very Light Rain

Precipitation Probability (%)

0
0
23
23
9
12
0
0
1
0
1
0
0
4
12
4
1
0
1
2
8
45
83
67

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
0.5
0.3

Wind Speed/Direction (mph)

13
13
12
14
15
13
12
11
11
11
11
11
10
9
10
10
12
13
15
17
18
20
21
23

Chance of Frost

Temperature (°C)

13
13
13
13
13
13
11
11
10
10
10
9
9
9
9
9
9
9
9
10
11
12
12
11

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

95
95
96
92
90
87
88
88
90
88
87
87
87
87
91
91
90
87
82
73
72
71
73
83

Pressure (mb)

1011
1011
1011
1011
1012
1012
1013
1013
1013
1013
1013
1013
1012
1012
1012
1012
1011
1011
1011
1010
1010
1009
1008
1008

Ozone (du)

253
253
253
252
252
253
255
256
259
263
266
265
264
263
264
266
267
270
271
275
279
279
282
284

Friday 28

First Quarter 55%

13:20

00:17

15 Bad
16 OK
17 Good
18 OK
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

Sun - Rise: 07:51, Set: 16:06, Transit: 11:58. Moon - Rise: 13:20, Set: 00:17. Civil Dark: 16:45 - 07:12. Nautical Dark: 17:27 - 06:30. Astro Dark: 18:07 - 05:50

Total Clouds (% Sky Obscured)

59
24
3
42
100
100
100
100
100
100
93
94
100
100
100
100
100
100
100
100
100
100
100
98

Low Clouds (% Sky Obscured)

58
24
3
8
35
25
47
54
40
50
69
77
91
100
100
100
86
91
89
88
100
100
81
58

Medium Clouds (% Sky Obscured)

0
0
0
0
0
95
52
50
57
64
91
79
100
100
100
100
93
100
100
100
100
100
88
67

High Clouds (% Sky Obscured)

4
0
1
34
86
86
99
98
87
95
50
35
16
100
100
100
100
100
100
100
100
39
100
83

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
5
2
2
3
1
1
6
2
9
8
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
Moderate Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
None

Precipitation Probability (%)

7
0
0
0
0
0
0
0
4
46
95
83
95
95
95
95
95
95
94
95
95
95
71
23

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
1.6
0.6
1.4
2.1
2.8
1.3
1.4
0.6
0.5
0.5
0.7
0.9
0.3
0

Wind Speed/Direction (mph)

17
17
16
15
15
14
13
11
10
8
5
4
5
10
7
10
7
9
9
9
9
9
10
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

81
76
74
70
70
71
73
77
81
84
87
96
98
93
96
98
96
95
95
95
93
91
85
87

Pressure (mb)

1009
1009
1010
1010
1010
1011
1011
1011
1011
1010
1009
1008
1007
1006
1005
1004
1004
1003
1003
1002
1002
1001
1000
1000

Ozone (du)

284
287
288
288
290
291
294
296
296
298
300
301
303
304
303
306
312
317
321
324
329
332
336
338

Saturday 29

Waxing Gibbous 66%

13:32

01:38

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

Sun - Rise: 07:53, Set: 16:06, Transit: 11:59. Moon - Rise: 13:32, Set: 01:38. Civil Dark: 16:44 - 07:14. Nautical Dark: 17:26 - 06:32. Astro Dark: 18:07 - 05:51

Total Clouds (% Sky Obscured)

93
100
98
98
92
67
89
70
81
98
69
50
30
20
8
2
2
4
3
3
3
8
12
17

Low Clouds (% Sky Obscured)

45
45
45
43
45
67
71
70
69
66
69
50
30
20
8
1
1
2
1
1
1
7
12
17

Medium Clouds (% Sky Obscured)

57
57
56
78
3
4
68
19
63
98
31
20
6
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

31
96
70
70
75
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 (%)

10
6
12
0
0
1
3
15
33
51
50
34
10
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
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

87
90
91
91
90
91
90
86
86
85
82
85
83
82
82
82
82
85
83
79
76
75
72
71

Pressure (mb)

1000
1001
1001
1002
1002
1003
1003
1004
1004
1005
1006
1007
1007
1008
1009
1010
1011
1012
1012
1013
1014
1014
1014
1014

Ozone (du)

341
346
345
344
345
342
345
348
349
349
350
349
345
343
348
351
348
344
340
335
332
330
328
323

Sunday 30

Waxing Gibbous 77%

13:46

03:03

15 Good
16 Good
17 Good
18 OK
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

Sun - Rise: 07:54, Set: 16:05, Transit: 11:59. Moon - Rise: 13:46, Set: 03:03. Civil Dark: 16:44 - 07:15. Nautical Dark: 17:26 - 06:33. Astro Dark: 18:06 - 05:53

Total Clouds (% Sky Obscured)

12
8
6
47
62
73
73
75
82
90
94
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

12
7
0
18
36
54
36
18
0
25
50
74
81
85
90
89
89
90
88
87
86
83
80
73

Medium Clouds (% Sky Obscured)

0
0
0
0
0
2
12
26
59
78
85
100
100
100
96
100
100
100
100
100
100
100
100
88

High Clouds (% Sky Obscured)

0
2
2
20
21
31
21
16
15
37
67
100
100
100
100
100
100
100
100
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
6
3
2
2
3
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
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
2
11
27
39
54
77
95
95
95
95
95
95
95
95
95

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.5
0.7
1.2
1.9
1.9
1.7
1.7
1.2
1.6
1.9

Wind Speed/Direction (mph)

4
2
3
4
4
4
4
5
6
6
7
7
8
10
12
14
15
19
20
21
20
19
19
19

Chance of Frost

Temperature (°C)

6
5
4
3
3
3
3
3
3
4
4
5
5
6
7
8
9
10
10
11
11
12
12
12

Feels Like (°C)

5
5
3
3
1
-0
-0
-1
-1
0
1
1
2
2
3
4
5
4
5
5
6
8
8
8

Dew Point (°C)

2
2
1
1
1
1
1
1
1
2
2
2
2
3
4
7
8
9
9
10
10
12
11
11

Relative Humidity (%)

75
80
82
83
83
83
83
85
85
86
83
82
80
82
82
91
91
93
93
95
95
96
93
90

Pressure (mb)

1014
1015
1015
1015
1015
1014
1014
1013
1013
1012
1011
1010
1009
1008
1006
1004
1003
1002
1000
999
998
997
996
995

Ozone (du)

318
316
314
310
306
303
299
295
290
287
284
280
275
273
273
272
270
268
267
266
266
266
268
270

Monday 1

Waxing Gibbous 86%

14:03

04:33

15 Bad
16 Bad
17 Bad
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

Sun - Rise: 07:55, Set: 16:04, Transit: 12:00. Moon - Rise: 14:03, Set: 04:33. Civil Dark: 16:43 - 07:16. Nautical Dark: 17:26 - 06:34. Astro Dark: 18:06 - 05:54

Total Clouds (% Sky Obscured)

89
78
69
72
77
83
80
78
82
77
72
67
67
55
55
91
95
99
85
70
55
69
84
99

Low Clouds (% Sky Obscured)

67
58
49
60
70
80
73
66
61
51
41
26
31
35
40
64
73
74
54
43
34
28
24
19

Medium Clouds (% Sky Obscured)

54
72
57
57
49
45
43
46
54
53
53
56
49
37
37
91
94
96
76
55
32
40
51
62

High Clouds (% Sky Obscured)

79
57
35
30
40
3
7
30
35
35
20
0
0
0
0
18
46
75
63
33
0
32
63
92

ISS Passover

Visibility (miles)

9
9
9
3
6
4
2
5
2
5
5
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
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

95
95
95
95
77
86
87
95
90
52
30
5
3
3
9
19
20
13
23
27
27
38
43
44

Precipitation Amount (mm)

1.7
1.6
0.8
0.7
0.4
0.6
0.4
0.7
0.6
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

18
18
17
17
17
20
16
15
14
11
9
8
8
8
7
7
6
6
6
6
7
9
9
8

Chance of Frost

Temperature (°C)

12
12
12
11
11
11
9
9
8
8
8
7
7
7
7
7
6
6
6
7
8
9
9
9

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

89
90
90
88
90
90
93
90
93
90
90
90
88
87
88
88
90
90
91
88
87
84
84
84

Pressure (mb)

994
994
994
994
994
993
994
994
996
996
997
998
998
999
999
1000
999
999
1000
1000
1000
1000
1000
1000

Ozone (du)

271
273
273
274
277
281
284
289
294
300
304
312
319
317
319
320
320
320
321
320
320
319
322
324

Tuesday 2

Waxing Gibbous 94%

14:27

06:07

15 Bad
16 Bad
17 Bad
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

Sun - Rise: 07:57, Set: 16:04, Transit: 12:00. Moon - Rise: 14:27, Set: 06:07. Civil Dark: 16:43 - 07:17. Nautical Dark: 17:25 - 06:35. Astro Dark: 18:05 - 05:55

Total Clouds (% Sky Obscured)

98
96
90
73
57
38
35
33
33
51
71
95
96
98
98
99
99
100
91
88
88
90
82
77

Low Clouds (% Sky Obscured)

22
28
25
34
39
38
35
33
24
30
40
49
47
45
44
44
45
45
45
44
43
41
40
37

Medium Clouds (% Sky Obscured)

67
69
69
51
30
12
10
8
6
32
55
70
65
65
65
77
90
100
85
75
59
46
30
13

High Clouds (% Sky Obscured)

89
86
85
73
57
38
35
33
4
2
1
0
4
16
21
41
60
78
71
68
61
41
20
0

ISS Passover

Visibility (miles)

8
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 (%)

40
34
26
29
22
8
17
19
9
23
29
27
30
24
1
11
14
12
23
23
7
22
25
25

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

84
87
88
91
91
91
93
91
91
89
91
91
93
91
91
91
91
91
91
90
87
85
85
84

Pressure (mb)

1000
1001
1001
1001
1002
1003
1003
1004
1004
1005
1005
1006
1006
1006
1007
1007
1008
1008
1009
1009
1009
1009
1009
1009

Ozone (du)

327
324
321
319
320
322
323
325
327
329
330
330
330
329
329
329
329
330
331
329
326
324
322
320

Wednesday 3

Waxing Gibbous 98%

15:02

07:43

15 Bad
16 Bad
17 Bad
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: 07:58, Set: 16:03, Transit: 12:00. Moon - Rise: 15:02, Set: 07:43. Civil Dark: 16:42 - 07:19. Nautical Dark: 17:25 - 06:36. Astro Dark: 18:05 - 05:56

Total Clouds (% Sky Obscured)

62
51
34
48
66
84
79
71
52
68
86
100
100
100
99
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

39
43
34
48
48
50
46
39
32
39
48
59
69
77
84
89
93
96
95
94
94

Medium Clouds (% Sky Obscured)

8
4
0
0
0
0
16
31
46
64
82
100
99
98
96
98
98
100
100
100
100

High Clouds (% Sky Obscured)

0
0
1
23
42
63
46
31
15
37
68
100
76
52
32
55
78
100
100
100
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
8
7
5
4
2
1
4
7

Fog (%)

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
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

31
27
14
17
14
0
8
10
10
16
19
23
51
73
95
95
95
95
95
95
95

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.5
0.8
1.3
1.9
1.8
1.6
1

Wind Speed/Direction (mph)

9
8
7
6
6
6
7
8
9
10
12
14
15
17
19
21
15
10
13
14
14

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

85
87
91
93
91
91
90
88
88
88
87
84
82
84
87
90
91
93
96
90
85

Pressure (mb)

1009
1009
1009
1009
1009
1008
1008
1007
1006
1005
1003
1002
1000
998
996
995
994
992
991
991
990

Ozone (du)

319
317
315
313
312
312
312
312
311
311
312
313
314
321
327
333
339
345
350
360
369

Forecast for Bristol, Bristol, United Kingdom (51.45,-2.59)

Generated: 27/11/25 15:03:04. Forecast: 27/11/25 to 03/12/25. Timezone: UTC+0.00