Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 12

Waning Crescent 36%

01:07

12:36

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

Sun - Rise: 08:00, Set: 15:55, Transit: 11:57. Moon - Rise: 01:07, Set: 12:36. Civil Dark: 16:35 - 07:20. Nautical Dark: 17:18 - 06:37. Astro Dark: 17:58 - 05:57

Total Clouds (% Sky Obscured)

23
40
54
64
100
89
34
51
37
0
24
27
28
33
0
0
22
26
40
61
88
100
100
100

Low Clouds (% Sky Obscured)

0
0
0
0
0
4
13
14
0
0
24
27
28
33
0
0
0
4
27
33
50
43
43
27

Medium Clouds (% Sky Obscured)

23
40
54
58
41
43
10
0
17
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

23
40
54
64
100
86
34
25
3
0
0
0
0
0
0
0
22
26
40
61
81
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
5
15
23
31
0
0
0
2
2
11
4
2

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

86
86
86
88
88
86
86
88
91
89
89
89
89
88
83
76
74
73
80
87
91
93
93
93

Pressure (mb)

1023
1024
1024
1025
1025
1026
1026
1026
1027
1027
1027
1028
1029
1029
1029
1029
1028
1028
1027
1027
1027
1027
1027
1027

Ozone (du)

309
308
312
314
318
319
321
327
337
352
360
372
364
352
342
338
335
336
335
334
334
332
326
323

Saturday 13

Waning Crescent 27%

02:19

12:47

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: 08:00, Set: 15:55, Transit: 11:58. Moon - Rise: 02:19, Set: 12:47. Civil Dark: 16:35 - 07:21. Nautical Dark: 17:18 - 06:38. Astro Dark: 17:58 - 05:58

Total Clouds (% Sky Obscured)

100
81
54
59
85
62
81
61
61
79
88
73
65
77
72
99
92
94
100
100
100
91
94
91

Low Clouds (% Sky Obscured)

34
33
29
36
50
50
68
61
47
52
50
41
42
38
47
64
76
76
85
83
77
76
87
89

Medium Clouds (% Sky Obscured)

0
29
53
14
29
9
12
1
8
18
26
18
15
20
21
22
23
26
2
14
6
3
3
4

High Clouds (% Sky Obscured)

100
44
35
13
8
2
1
2
20
38
64
45
28
46
33
80
61
53
98
95
99
67
62
57

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
0
0
0
2
1

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

93
93
93
91
90
91
91
90
91
90
90
90
90
90
87
84
81
80
81
87
90
91
93
95

Pressure (mb)

1027
1026
1026
1026
1025
1025
1024
1024
1023
1022
1022
1022
1021
1021
1021
1021
1020
1019
1018
1018
1017
1017
1016
1015

Ozone (du)

321
320
318
314
311
309
303
303
302
301
300
302
303
304
303
302
301
300
300
298
297
296
295
296

Sunday 14

Waning Crescent 19%

03:30

13:00

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
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad

Sun - Rise: 08:01, Set: 15:56, Transit: 11:58. Moon - Rise: 03:30, Set: 13:00. Civil Dark: 16:35 - 07:22. Nautical Dark: 17:18 - 06:39. Astro Dark: 17:59 - 05:58

Total Clouds (% Sky Obscured)

99
100
89
73
100
100
100
100
94
77
82
90
100
96
75
85
81
77
73
67
62
54
66
82

Low Clouds (% Sky Obscured)

93
100
89
71
100
100
100
100
94
77
82
90
100
96
74
85
81
77
73
65
60
49
54
61

Medium Clouds (% Sky Obscured)

4
4
4
4
4
4
4
0
0
0
0
0
0
0
0
0
0
1
2
2
3
5
16
27

High Clouds (% Sky Obscured)

93
49
28
13
15
18
2
0
0
1
2
0
0
0
1
3
4
2
5
4
0
0
23
51

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
1
2
1
0
1
1
3
19
21
5
5
4
7
16
7
8
1
0
1

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)

13
14
13
14
16
16
15
14
14
14
13
14
15
14
14
15
16
15
14
13
15
14
13
14

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

90
80
88
93
85
85
87
87
85
90
90
90
85
87
88
90
88
88
88
88
85
88
90
88

Pressure (mb)

1015
1014
1013
1013
1012
1011
1010
1010
1009
1008
1007
1007
1007
1007
1006
1006
1006
1005
1005
1005
1005
1005
1006
1006

Ozone (du)

297
299
300
301
302
303
305
306
306
308
310
314
317
322
326
336
342
346
347
342
336
328
324
324

Monday 15

Waning Crescent 12%

04:42

13:16

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 OK
19 OK

Sun - Rise: 08:02, Set: 15:56, Transit: 11:59. Moon - Rise: 04:42, Set: 13:16. Civil Dark: 16:36 - 07:22. Nautical Dark: 17:18 - 06:39. Astro Dark: 17:59 - 05:59

Total Clouds (% Sky Obscured)

95
86
93
93
94
96
97
98
99
100
100
100
100
100
100
100
99
97
96
77
57
33
23
15

Low Clouds (% Sky Obscured)

67
65
65
65
68
76
80
85
90
95
97
98
100
100
99
99
89
80
73
65
54
32
20
13

Medium Clouds (% Sky Obscured)

48
45
59
59
74
88
92
95
97
100
99
99
99
99
100
100
87
78
57
35
21
7
5
4

High Clouds (% Sky Obscured)

71
68
71
72
59
45
36
57
79
100
79
58
41
45
49
53
43
32
16
2
2
1
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
7
4
5
3
2
5
9
7
4
5
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
Very 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

Precipitation Probability (%)

6
17
35
17
26
38
53
67
61
77
88
95
95
95
95
95
95
81
63
41
23
8
4
1

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

14
13
12
10
8
6
4
3
3
4
6
6
7
8
8
9
9
8
7
7
6
5
4
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

88
88
91
90
91
95
96
98
98
98
96
95
96
94
94
93
91
91
91
91
90
93
93
94

Pressure (mb)

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

Ozone (du)

325
325
326
327
327
326
323
317
311
305
301
298
296
301
306
314
317
324
338
340
340
345
346
349

Tuesday 16

Waning Crescent 7%

05:55

13:38

20 Good
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
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad

Sun - Rise: 08:03, Set: 15:56, Transit: 11:59. Moon - Rise: 05:55, Set: 13:38. Civil Dark: 16:36 - 07:23. Nautical Dark: 17:19 - 06:40. Astro Dark: 17:59 - 06:00

Total Clouds (% Sky Obscured)

7
17
27
37
43
53
56
53
48
44
67
84
100
100
100
100
100
100
100
100
100
100
86
72

Low Clouds (% Sky Obscured)

7
16
25
34
35
35
36
24
12
0
18
37
55
55
56
45
54
66
78
84
91
100
86
72

Medium Clouds (% Sky Obscured)

0
1
0
0
0
0
0
0
0
0
31
23
26
35
54
73
82
92
100
100
100
100
86
72

High Clouds (% Sky Obscured)

0
2
4
6
12
31
25
25
48
44
64
77
93
95
98
100
100
100
100
100
100
100
77
47

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

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
10
19
23
36
49
57
66
67
66
59
60

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.3
0.3
0.2
0.3

Wind Speed/Direction (mph)

3
3
3
3
3
3
3
3
4
4
4
5
5
6
8
9
11
12
13
13
13
13
12
12

Chance of Frost

Temperature (°C)

4
4
4
3
3
2
2
2
2
2
2
3
4
4
6
7
9
9
9
9
9
9
9
9

Feels Like (°C)

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

Dew Point (°C)

3
3
3
2
2
2
1
1
1
0
1
2
2
3
4
5
5
5
6
5
6
6
7
7

Relative Humidity (%)

93
93
94
94
93
94
91
91
91
89
89
91
91
93
88
84
80
80
81
80
82
82
85
87

Pressure (mb)

1018
1019
1019
1020
1019
1019
1020
1020
1020
1020
1020
1018
1018
1018
1017
1017
1016
1016
1015
1015
1015
1014
1014
1014

Ozone (du)

351
344
339
334
332
328
327
323
319
316
315
312
309
306
306
305
305
303
301
300
299
299
299
299

Wednesday 17

Waning Crescent 3%

07:06

14:08

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: 08:03, Set: 15:56, Transit: 12:00. Moon - Rise: 07:06, Set: 14:08. Civil Dark: 16:36 - 07:24. Nautical Dark: 17:19 - 06:41. Astro Dark: 18:00 - 06:00

Total Clouds (% Sky Obscured)

60
72
87
100
95
89
82
86
90
93
75
65
57
62
58
67
78
89
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

60
72
63
50
52
54
46
40
43
45
44
37
37
42
50
59
57
56
54
61
68
71
78
84

Medium Clouds (% Sky Obscured)

60
72
65
52
38
28
26
41
48
43
29
27
35
49
58
67
68
59
53
50
47
45
61
81

High Clouds (% Sky Obscured)

20
42
69
99
83
67
50
34
17
2
6
20
45
51
51
47
61
76
91
94
98
100
100
100

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

60
56
49
45
54
49
37
30
27
23
24
25
15
23
27
2
7
10
0
1
2
8
37
61

Precipitation Amount (mm)

0.3
0.2
0
0
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2

Wind Speed/Direction (mph)

11
12
12
11
11
9
8
7
6
6
5
6
6
7
8
9
10
11
12
13
14
15
16
17

Chance of Frost

Temperature (°C)

9
9
9
9
9
9
9
10
10
10
10
10
9
9
9
10
10
10
10
10
10
10
10
10

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

88
90
91
91
95
95
95
96
96
96
96
96
95
95
91
87
84
81
78
76
77
78
80
82

Pressure (mb)

1014
1014
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1016
1015
1014
1013
1013
1012
1011
1010
1009
1008
1007

Ozone (du)

299
300
300
301
302
305
307
309
308
306
305
301
297
294
291
289
287
285
283
281
281
280
280
279

Thursday 18

Waning Crescent 1%

08:10

14:49

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: 08:04, Set: 15:57, Transit: 12:00. Moon - Rise: 08:10, Set: 14:49. Civil Dark: 16:37 - 07:24. Nautical Dark: 17:19 - 06:41. Astro Dark: 18:00 - 06:01

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
93
85
79
81
83
85

Low Clouds (% Sky Obscured)

90
90
90
89
88
87
84
76
63
39
27
23
19
42
61
83

Medium Clouds (% Sky Obscured)

100
100
100
100
100
100
100
99
99
97
79
58
36
39
42
44

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
69
41
15
12
6
0

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

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

Precipitation Probability (%)

90
95
95
95
95
95
95
95
95
95
76
45
26
37
42
38

Precipitation Amount (mm)

0.6
0.9
1
1.3
1.5
1.7
1.6
1.5
1.3
0.9
0.4
0
0
0
0
0

Wind Speed/Direction (mph)

18
20
18
18
17
16
15
15
16
16
17
17
17
18
17
17

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

85
90
87
87
87
84
80
78
78
78
78
77
78
78
81
84

Pressure (mb)

1006
1005
1004
1003
1003
1002
1002
1002
1001
1001
1001
1001
1001
1001
1000
1000

Ozone (du)

279
278
281
284
286
299
312
325
334
342
350
356
361
367
371
376

Forecast for Crondall, Hampshire, United Kingdom (51.23,-0.86)

Generated: 12/12/25 20:49:03. Forecast: 12/12/25 to 18/12/25. Timezone: UTC+0.00