Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 12

Waning Crescent 36%

01:15

12:43

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

Sun - Rise: 08:07, Set: 16:03, Transit: 12:05. Moon - Rise: 01:15, Set: 12:43. Civil Dark: 16:42 - 07:27. Nautical Dark: 17:25 - 06:44. Astro Dark: 18:05 - 06:04

Total Clouds (% Sky Obscured)

18
23
51
65
67
31
36
32
30
35
39
36
65
48
83
93
94
90
100
100
100
89
86
68

Low Clouds (% Sky Obscured)

16
22
27
21
22
31
36
32
30
35
37
25
10
20
27
45
42
50
63
49
39
33
39
45

Medium Clouds (% Sky Obscured)

18
23
51
54
46
0
0
0
0
0
0
0
0
0
0
0
0
0
0
20
96
78
68
62

High Clouds (% Sky Obscured)

3
4
0
0
0
0
0
0
0
0
25
36
65
48
83
89
94
89
100
100
100
45
30
3

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
2
2
1
1
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
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)

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

Chance of Frost

Temperature (°C)

4
4
4
4
4
4
4
3
3
3
3
3
4
7
8
8
9
8
8
8
8
7
7
7

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

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

Pressure (mb)

1024
1025
1025
1025
1026
1026
1026
1026
1027
1027
1028
1028
1028
1028
1028
1027
1026
1026
1026
1026
1025
1025
1025
1025

Ozone (du)

319
323
327
335
348
369
377
361
349
347
343
344
340
337
333
328
327
326
322
317
315
317
316
316

Saturday 13

Waning Crescent 27%

02:26

12:54

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
21 Bad

Sun - Rise: 08:07, Set: 16:03, Transit: 12:05. Moon - Rise: 02:26, Set: 12:54. Civil Dark: 16:42 - 07:28. Nautical Dark: 17:25 - 06:45. Astro Dark: 18:06 - 06:05

Total Clouds (% Sky Obscured)

89
79
84
89
89
85
87
88
94
93
88
89
95
100
100
100
100
100
100
99
97
93
97
97

Low Clouds (% Sky Obscured)

45
47
54
49
45
42
45
42
42
44
49
50
59
78
58
64
79
67
82
84
81
79
80
83

Medium Clouds (% Sky Obscured)

89
24
30
36
64
82
62
76
70
69
59
67
64
72
85
48
23
28
38
36
37
53
69
73

High Clouds (% Sky Obscured)

2
2
1
1
45
33
20
29
80
80
53
42
73
99
100
100
100
100
100
93
70
28
18
17

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

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
9
9
10
10
12
13
13
12
14
14
15
15
16
17
17
17
16
15
16
16
18
18
18

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

91
91
93
93
90
88
85
87
85
82
82
82
81
81
83
84
85
87
91
91
90
83
84
84

Pressure (mb)

1025
1024
1024
1024
1023
1022
1021
1021
1020
1020
1019
1019
1019
1018
1017
1016
1015
1015
1014
1013
1012
1012
1011
1011

Ozone (du)

312
308
304
304
303
300
300
303
302
301
299
297
295
293
292
292
292
292
293
293
294
293
293
293

Sunday 14

Waning Crescent 19%

03:37

13:07

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
21 Bad

Sun - Rise: 08:08, Set: 16:03, Transit: 12:06. Moon - Rise: 03:37, Set: 13:07. Civil Dark: 16:43 - 07:29. Nautical Dark: 17:25 - 06:46. Astro Dark: 18:06 - 06:05

Total Clouds (% Sky Obscured)

100
99
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)

87
70
85
81
87
87
88
92
100
91
98
93
90
98
96
100
96
90
89
80
82
83
87
89

Medium Clouds (% Sky Obscured)

69
69
81
100
100
93
90
95
98
98
93
35
35
100
40
40
43
40
40
63
100
100
100
100

High Clouds (% Sky Obscured)

15
15
30
24
3
4
76
71
86
86
80
80
75
65
65
65
67
67
77
95
56
79
71
65

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
7
2
3
3

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

Precipitation Probability (%)

9
20
31
71
89
95
95
90
88
92
90
75
74
73
63
60
68
60
72
95
95
95
95
95

Precipitation Amount (mm)

0
0
0
0.4
0.7
0.9
0.7
0.7
0.7
0.8
0.6
0.4
0.3
0.3
0.2
0
0.2
0
0.3
0.5
0.9
2
1.1
1.1

Wind Speed/Direction (mph)

18
18
18
18
17
17
18
17
16
15
16
16
15
15
15
16
16
15
15
14
15
7
7
8

Chance of Frost

Temperature (°C)

11
11
11
11
11
11
11
10
10
10
10
10
10
11
11
11
11
11
11
11
11
10
9
9

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

84
83
84
84
83
84
81
83
85
85
85
87
87
85
88
84
87
88
88
88
91
96
96
95

Pressure (mb)

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

Ozone (du)

292
294
294
295
297
299
301
302
303
302
305
307
308
309
310
312
313
317
316
316
315
314
313
308

Monday 15

Waning Crescent 12%

04:50

13:24

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 OK
19 OK
20 OK
21 OK

Sun - Rise: 08:09, Set: 16:03, Transit: 12:06. Moon - Rise: 04:50, Set: 13:24. Civil Dark: 16:43 - 07:29. Nautical Dark: 17:26 - 06:47. Astro Dark: 18:06 - 06:06

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
84
54
38
33
16
31
33

Low Clouds (% Sky Obscured)

92
94
80
67
53
38
24
12
13
16
20
25
25
25
25
15
6
3
3
5
10
15
20
28

Medium Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
96
93
90
94
97
100
82
52
38
33
4
0
0

High Clouds (% Sky Obscured)

61
59
51
45
28
32
23
13
24
18
22
48
76
100
77
41
30
31
3
0
0
0
30
11

ISS Passover

Visibility (miles)

1
3
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

Light Rain
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 (%)

95
69
58
54
45
33
17
8
9
7
2
1
1
3
2
1
1
0
0
0
0
0
0
0

Precipitation Amount (mm)

0.7
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
8
6
5
4
5
4
4
4
4
4
4
5
5
5
5
5
4
3
3
2
1
1
2

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

98
96
96
96
94
93
93
93
93
91
93
91
88
81
79
79
81
85
90
90
89
89
89
89

Pressure (mb)

1004
1005
1006
1007
1007
1008
1008
1009
1010
1011
1012
1013
1013
1014
1014
1015
1015
1016
1016
1017
1018
1018
1018
1019

Ozone (du)

301
297
294
293
293
296
299
301
308
319
334
339
341
342
339
343
340
338
343
347
347
343
342
337

Tuesday 16

Waning Crescent 7%

06:02

13:46

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
21 Bad

Sun - Rise: 08:10, Set: 16:03, Transit: 12:07. Moon - Rise: 06:02, Set: 13:46. Civil Dark: 16:43 - 07:30. Nautical Dark: 17:26 - 06:47. Astro Dark: 18:06 - 06:07

Total Clouds (% Sky Obscured)

48
57
66
76
84
90
95
100
100
100
100
100
100
100
100
100
100
99
98
97
97
98
98
98

Low Clouds (% Sky Obscured)

36
43
36
29
22
22
23
23
41
59
80
83
87
90
93
96
100
97
94
91
83
74
66
67

Medium Clouds (% Sky Obscured)

0
0
3
6
9
27
46
60
60
67
82
69
99
99
91
84
79
76
73
68
69
69
69
80

High Clouds (% Sky Obscured)

43
44
55
66
78
84
91
100
100
100
100
70
43
25
30
50
70
80
75
75
61
44
30
15

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
8
8
9
9
9
9
8

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

Precipitation Probability (%)

0
0
0
0
0
1
1
1
18
39
72
72
80
82
95
95
57
51
40
34
43
45
48
62

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0.5
0.4
0.5
0.5
0.8
1.1
0.2
0
0
0
0
0
0
0.2

Wind Speed/Direction (mph)

3
4
4
4
5
5
6
7
7
9
11
12
14
16
18
18
18
18
18
18
17
17
16
15

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

2
2
1
1
2
2
2
3
3
4
4
5
5
6
6
7
7
8
8
8
8
9
9
9

Relative Humidity (%)

91
91
91
91
91
91
89
91
91
91
93
91
85
82
81
84
85
88
87
87
85
87
87
88

Pressure (mb)

1019
1019
1019
1018
1018
1018
1018
1017
1017
1017
1017
1017
1016
1015
1014
1014
1013
1013
1012
1012
1012
1012
1011
1011

Ozone (du)

332
327
322
317
315
311
309
307
306
306
306
305
306
304
301
300
299
298
298
298
299
299
299
299

Wednesday 17

Waning Crescent 3%

07:13

14:15

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
21 Bad

Sun - Rise: 08:10, Set: 16:04, Transit: 12:07. Moon - Rise: 07:13, Set: 14:15. Civil Dark: 16:43 - 07:31. Nautical Dark: 17:26 - 06:48. Astro Dark: 18:07 - 06:07

Total Clouds (% Sky Obscured)

99
99
98
98
97
94
91
90
89
86
91
95
97
94
94
96
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

69
71
73
78
79
84
88
90
85
77
75
73
68
65
63
61
61
52
43
36
45
54
62
74

Medium Clouds (% Sky Obscured)

90
99
98
96
94
85
79
75
75
75
70
65
60
60
69
82
96
98
99
100
100
99
99
92

High Clouds (% Sky Obscured)

8
0
4
7
10
10
10
10
10
5
5
5
5
5
37
68
100
100
100
100
100
100
100
100

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

78
85
81
91
95
92
92
89
77
73
80
78
68
49
34
23
3
4
2
1
2
4
9
90

Precipitation Amount (mm)

0.5
0.5
0.5
0.7
0.8
0.6
0.7
0.7
0.4
0.4
0.4
0.4
0.3
0
0
0
0
0
0
0
0
0
0
0.6

Wind Speed/Direction (mph)

15
14
13
12
12
12
12
12
12
11
11
11
13
13
15
15
16
17
18
19
21
22
24
25

Chance of Frost

Temperature (°C)

11
11
11
10
10
10
10
10
9
10
10
10
10
10
10
10
10
10
10
9
9
10
10
10

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

90
91
95
93
95
95
96
95
95
96
96
95
95
91
90
90
90
88
87
87
85
85
85
85

Pressure (mb)

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

Ozone (du)

299
299
299
301
302
304
301
299
297
294
291
289
286
283
281
280
279
278
277
277
277
276
275
274

Thursday 18

Waning Crescent 1%

08:17

14:57

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

Sun - Rise: 08:11, Set: 16:04, Transit: 12:08. Moon - Rise: 08:17, Set: 14:57. Civil Dark: 16:44 - 07:31. Nautical Dark: 17:27 - 06:48. Astro Dark: 18:07 - 06:08

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
96
92
86
88
93
97
94
90
86

Low Clouds (% Sky Obscured)

85
95
93
91
89
90
91
90
86
83
80
75
70
66
74
81
88
79
70
63

Medium Clouds (% Sky Obscured)

85
76
84
92
100
85
70
55
46
45
43
44
44
40
46
53
50
44
33
27

High Clouds (% Sky Obscured)

100
100
100
100
100
67
37
15
47
63
71
46
23
0
21
41
66
44
21
1

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

95
95
95
95
95
94
79
72
73
84
95
94
82
58
49
51
54
43
36
27

Precipitation Amount (mm)

1.6
2.9
1.1
1
0.7
0.6
0.4
0.4
0.3
0.5
0.6
0.6
0.5
0.3
0
0
0.3
0
0
0

Wind Speed/Direction (mph)

26
28
29
29
30
30
30
30
31
28
27
26
24
22
20
21
24
28
24
21

Chance of Frost

Temperature (°C)

10
11
11
11
11
11
11
11
11
10
10
10
10
10
11
10
10
9
9
9

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

85
88
90
88
87
87
85
83
81
83
84
85
84
83
83
85
87
90
87
84

Pressure (mb)

998
996
994
993
992
991
989
988
987
986
985
984
985
986
986
989
992
994
997
999

Ozone (du)

283
292
301
309
317
326
330
334
339
341
344
346
352
358
364
355
346
337
328
319

Forecast for Wells, Somerset, United Kingdom (51.21,-2.64)

Generated: 12/12/25 22:27:31. Forecast: 12/12/25 to 18/12/25. Timezone: UTC+0.00