Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 30

Waxing Gibbous 77%

13:37

02:52

16 OK
17 Bad
18 Bad
19 OK
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

Sun - Rise: 07:43, Set: 15:56, Transit: 11:50. Moon - Rise: 13:37, Set: 02:52. Civil Dark: 16:35 - 07:04. Nautical Dark: 17:17 - 06:22. Astro Dark: 17:57 - 05:42

Total Clouds (% Sky Obscured)

25
61
55
34
93
99
100
100
99
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

14
0
0
23
66
98
66
90
54
57
83
82
99
91
95
100
87
91
89
87
88
96
89
100

Medium Clouds (% Sky Obscured)

0
0
0
1
43
31
52
100
98
100
100
100
98
100
99
100
100
100
100
100
100
100
100
100

High Clouds (% Sky Obscured)

25
59
55
34
10
15
96
75
82
100
100
100
100
86
100
100
100
75
100
100
100
100
100
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
8
6
9
9
9
9
5
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
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
None
None
Very Light Rain
Light Rain

Precipitation Probability (%)

0
0
0
0
3
21
26
26
17
25
46
40
80
95
95
95
95
95
87
95
49
7
47
72

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0.5
0.7
0.8
1.1
1.4
1
0.6
0.9
0
0
0.2
0.5

Wind Speed/Direction (mph)

8
6
5
4
6
7
11
15
18
19
19
21
19
21
24
23
23
24
25
25
23
23
26
27

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

86
88
89
86
83
80
82
81
81
82
84
88
87
85
88
90
90
90
88
87
88
88
87
86

Pressure (mb)

1016
1016
1016
1016
1016
1015
1014
1014
1013
1012
1012
1011
1010
1009
1008
1008
1007
1006
1006
1005
1004
1003
1002
1002

Ozone (du)

311
307
302
298
292
290
287
285
282
281
281
280
278
277
275
271
270
269
268
268
267
267
268
267

Monday 1

Waxing Gibbous 86%

13:55

04:21

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

Sun - Rise: 07:44, Set: 15:56, Transit: 11:50. Moon - Rise: 13:55, Set: 04:21. Civil Dark: 16:35 - 07:05. Nautical Dark: 17:17 - 06:24. Astro Dark: 17:57 - 05:44

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
80
32
7
13
42
87
62
60
55
76
52
63
69
60
60
100

Low Clouds (% Sky Obscured)

85
77
84
85
99
85
100
66
68
30
7
13
30
59
37
48
53
60
52
63
53
60
60
95

Medium Clouds (% Sky Obscured)

75
82
100
100
93
97
95
99
14
32
7
13
42
76
35
39
3
32
25
50
66
30
6
45

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
50
1
1
0
0
1
1
1
1
35
3
2
4
2
0
0
0

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

80
54
89
95
95
68
83
72
59
41
14
27
18
38
42
30
17
22
29
34
42
48
33
60

Precipitation Amount (mm)

0.7
0.2
0.6
0.8
0.9
0.3
0.6
0.4
0.4
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0
0.3

Wind Speed/Direction (mph)

28
29
29
29
29
26
16
18
13
14
10
8
7
8
8
7
6
5
6
8
11
12
13
12

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

86
86
84
85
88
90
90
91
87
90
85
88
91
87
90
93
91
90
85
80
80
80
82
84

Pressure (mb)

1001
1000
1000
999
999
999
999
999
1000
1000
1001
1002
1002
1003
1003
1004
1004
1005
1005
1005
1005
1005
1005
1005

Ozone (du)

265
266
267
270
272
271
273
275
278
281
285
286
288
289
291
292
294
296
296
296
297
298
299
301

Tuesday 2

Waxing Gibbous 94%

14:19

05:55

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

Sun - Rise: 07:45, Set: 15:55, Transit: 11:50. Moon - Rise: 14:19, Set: 05:55. Civil Dark: 16:34 - 07:07. Nautical Dark: 17:16 - 06:25. Astro Dark: 17:56 - 05:45

Total Clouds (% Sky Obscured)

100
65
100
100
100
36
46
60
65
66
69
86
90
91
36
47
61
65
50
64
69
76
80
73

Low Clouds (% Sky Obscured)

62
44
52
49
56
36
46
59
61
63
68
68
61
51
36
47
61
65
50
64
63
58
52
55

Medium Clouds (% Sky Obscured)

92
65
61
38
29
0
0
0
6
5
7
25
30
30
1
0
1
3
3
4
15
24
31
16

High Clouds (% Sky Obscured)

3
0
0
0
0
0
0
22
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

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

Very Light Rain
Very 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

Precipitation Probability (%)

63
62
57
19
13
9
7
19
19
5
10
10
18
13
12
15
23
11
12
23
41
42
16
36

Precipitation Amount (mm)

0.3
0.3
0.4
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

85
85
88
87
85
87
88
88
87
86
85
85
83
85
85
85
86
85
79
77
76
77
80
84

Pressure (mb)

1005
1005
1006
1006
1006
1007
1007
1007
1007
1007
1007
1007
1007
1008
1008
1008
1009
1009
1009
1009
1009
1008
1008
1008

Ozone (du)

302
304
305
306
306
307
308
308
309
307
309
308
308
312
316
320
321
318
314
313
314
316
314
312

Wednesday 3

Waxing Gibbous 98%

14:55

07:30

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
15 Bad

Sun - Rise: 07:47, Set: 15:55, Transit: 11:51. Moon - Rise: 14:55, Set: 07:30. Civil Dark: 16:34 - 07:08. Nautical Dark: 17:16 - 06:26. Astro Dark: 17:56 - 05:46

Total Clouds (% Sky Obscured)

67
61
63
63
66
75
84
94
96
98
100
97
93
90
93
96
100
100
100
100
98
95
92
95

Low Clouds (% Sky Obscured)

59
61
62
63
63
65
66
67
62
62
57
62
66
69
76
86
93
95
98
100
77
57
35
30

Medium Clouds (% Sky Obscured)

11
3
29
4
25
30
40
55
71
86
98
94
89
84
87
90
95
96
96
77
65
51
37
44

High Clouds (% Sky Obscured)

2
4
3
13
13
33
54
76
84
92
100
75
49
28
47
71
94
81
65
42
41
56
60
57

ISS Passover

Visibility (miles)

9
7
9
9
9
9
8
9
9
9
9
9
9
9
9
9
9
4
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
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

40
32
28
28
28
26
28
19
15
12
12
22
20
11
29
46
64
87
95
95
95
95
86
65

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.6
0.8
1.2
1.2
1
0.7
0.4

Wind Speed/Direction (mph)

8
7
7
8
10
11
10
11
11
12
12
14
14
15
16
17
17
18
18
17
15
13
10
9

Chance of Frost

Temperature (°C)

8
7
7
7
7
7
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8

Feels Like (°C)

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

Dew Point (°C)

6
6
5
5
5
5
5
5
5
5
5
5
6
5
5
5
6
6
6
6
6
6
6
6

Relative Humidity (%)

88
90
88
87
85
85
84
82
81
81
82
84
84
82
82
82
82
84
87
87
87
88
85
85

Pressure (mb)

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

Ozone (du)

313
310
309
313
312
312
311
310
310
311
310
308
308
308
310
310
311
312
312
314
318
319
320
324

Thursday 4

Full Moon 100%

15:48

08:57

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
15 Bad

Sun - Rise: 07:48, Set: 15:54, Transit: 11:51. Moon - Rise: 15:48, Set: 08:57. Civil Dark: 16:34 - 07:09. Nautical Dark: 17:16 - 06:27. Astro Dark: 17:56 - 05:47

Total Clouds (% Sky Obscured)

97
100
100
100
100
95
90
85
79
77
72
71
88
100
66
64
63
63
79
82
76
71
66
69

Low Clouds (% Sky Obscured)

25
10
0
0
0
15
29
44
51
58
65
71
85
100
66
64
63
63
77
78
70
65
66
63

Medium Clouds (% Sky Obscured)

51
63
62
62
50
40
38
38
75
65
30
3
2
0
29
15
7
3
2
2
2
3
3
3

High Clouds (% Sky Obscured)

42
27
48
59
79
52
35
19
20
20
9
1
1
1
1
1
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
8
8
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 (%)

45
24
24
19
25
30
11
22
13
10
17
2
5
2
7
7
2
6
7
1
5
9
8
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

87
87
88
90
90
90
86
85
85
82
82
80
88
91
91
91
89
91
86
84
79
79
81
79

Pressure (mb)

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

Ozone (du)

326
329
331
333
332
332
334
337
339
340
338
337
339
339
339
339
340
340
342
343
345
348
351
354

Friday 5

Waning Gibbous 98%

No Rise

10:05

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
15 Bad

Sun - Rise: 07:49, Set: 15:54, Transit: 11:52. Moon - Rise: No Rise, Set: 10:05. Civil Dark: 16:33 - 07:10. Nautical Dark: 17:16 - 06:28. Astro Dark: 17:56 - 05:48

Total Clouds (% Sky Obscured)

71
71
73
81
90
89
89
87
90
95
100
100
100
100
98
95
93
82
71
62
74
87
99
92

Low Clouds (% Sky Obscured)

51
40
44
54
62
68
70
70
60
51
41
54
77
100
93
86
78
71
64
57
54
50
47
49

Medium Clouds (% Sky Obscured)

2
0
15
20
25
9
4
3
9
16
24
49
77
99
96
93
91
82
71
62
54
34
17
17

High Clouds (% Sky Obscured)

0
0
20
33
65
47
30
0
33
67
100
67
33
5
5
20
30
45
45
45
56
77
98
65

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
8
7
6
5
4
6
7
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
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
None
None
None
None
None

Precipitation Probability (%)

3
1
3
3
4
6
7
4
9
7
2
22
33
43
65
81
95
90
74
48
38
25
5
3

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.4
0.7
0.6
0.4
0
0
0
0
0

Wind Speed/Direction (mph)

2
4
5
6
7
8
7
6
6
7
8
9
10
11
12
13
13
14
11
10
11
9
7
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

84
85
90
87
84
81
82
84
85
85
84
82
84
88
90
91
91
93
91
91
91
90
88
85

Pressure (mb)

1014
1014
1014
1014
1014
1014
1014
1014
1013
1013
1013
1012
1012
1012
1011
1011
1011
1011
1011
1011
1011
1011
1012
1013

Ozone (du)

350
345
341
335
330
324
317
310
304
301
299
297
297
296
295
298
301
304
304
305
305
305
305
305

Saturday 6

Waning Gibbous 93%

17:00

10:52

16 Bad
17 Bad
18 Bad
19 OK
20 OK
21 OK
22 OK
23 OK
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: 07:50, Set: 15:54, Transit: 11:52. Moon - Rise: 17:00, Set: 10:52. Civil Dark: 16:33 - 07:11. Nautical Dark: 17:15 - 06:29. Astro Dark: 17:55 - 05:49

Total Clouds (% Sky Obscured)

72
55
45
38
27
30
30
34
50
66
80
83
86
91
88
85
83
88
93
99

Low Clouds (% Sky Obscured)

51
53
45
38
27
30
30
34
46
46
46
32
21
11
16
17
17
19
21
30

Medium Clouds (% Sky Obscured)

18
15
10
5
0
0
0
0
1
3
4
9
18
20
20
20
29
25
45
55

High Clouds (% Sky Obscured)

33
0
0
0
0
1
2
3
25
47
68
77
86
91
88
85
81
87
93
99

ISS Passover

Visibility (miles)

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

Precipitation Type

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

Precipitation Probability (%)

2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
4
9
12

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

88
90
93
93
93
93
93
93
93
91
91
91
89
89
89
88
86
86
85
82

Pressure (mb)

1013
1014
1015
1015
1016
1016
1016
1017
1017
1018
1018
1018
1018
1018
1019
1019
1019
1019
1019
1019

Ozone (du)

306
307
308
306
303
301
297
292
288
286
284
282
281
281
280
280
281
281
282
282

Forecast for Southgate, West Sussex, United Kingdom (51.11,-0.19)

Generated: 30/11/25 16:12:55. Forecast: 30/11/25 to 06/12/25. Timezone: UTC+0.00