Clear Outside v1.0 - International Weather Forecasts For Astronomers

Wednesday 31

Waxing Gibbous 91%

13:12

05:12

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

Sun - Rise: 08:19, Set: 16:28, Transit: 12:24. Moon - Rise: 13:12, Set: 05:12. Civil Dark: 17:06 - 07:41. Nautical Dark: 17:48 - 06:59. Astro Dark: 18:27 - 06:20

Total Clouds (% Sky Obscured)

52
51
48
60
54
54
63
58
56
55
37
18
7
15
31
26
13
32
55
69
69
76
53
79

Low Clouds (% Sky Obscured)

52
48
48
59
52
54
63
58
56
54
36
15
0
14
27
18
0
24
51
60
58
68
52
76

Medium Clouds (% Sky Obscured)

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

High Clouds (% Sky Obscured)

4
8
16
4
4
4
3
3
3
42
22
18
7
4
31
26
13
32
55
69
69
76
53
70

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
4
6
12
10
6

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
3
12
3
4
2
1
1
2
1
2
1
0
0
0
1
0
0
0
3
1
4
6

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
6
5
5
5
4
5
6
6
5
4
3
2
1
1
2
2
2
3
4
6
7
8
10

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

76
79
83
85
83
80
77
75
72
72
76
80
83
82
82
82
79
79
77
72
68
69
70
71

Pressure (mb)

1032
1031
1031
1031
1032
1031
1031
1030
1030
1029
1029
1028
1028
1027
1027
1027
1026
1026
1025
1024
1023
1022
1022
1021

Ozone (du)

308
308
307
308
307
303
305
305
303
302
301
299
297
298
302
304
308
311
312
315
317
318
320
321

Thursday 1

Waxing Gibbous 97%

13:56

06:40

05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 OK
11 OK
12 OK
13 Bad
14 Bad
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

Sun - Rise: 08:19, Set: 16:29, Transit: 12:24. Moon - Rise: 13:56, Set: 06:40. Civil Dark: 17:07 - 07:41. Nautical Dark: 17:49 - 06:59. Astro Dark: 18:28 - 06:20

Total Clouds (% Sky Obscured)

79
100
43
57
51
24
31
41
63
82
72
70
87
63
55
70
47
78
76
91
75
66
74
71

Low Clouds (% Sky Obscured)

78
100
43
55
48
20
29
41
63
82
72
70
86
61
55
70
47
78
76
91
75
66
74
71

Medium Clouds (% Sky Obscured)

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

High Clouds (% Sky Obscured)

30
54
10
1
1
3
0
0
0
0
2
0
3
2
2
2
0
0
0
3
3
4
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 (%)

4
2
1
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 (%)

16
23
22
12
17
9
7
3
6
7
9
25
28
23
10
4
1
0
1
0
0
2
5
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)

11
12
13
13
14
13
13
13
14
15
15
14
15
15
14
14
14
13
12
11
11
11
10
10

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

72
74
76
76
75
69
70
69
68
70
73
77
77
77
73
67
63
67
69
69
70
70
70
69

Pressure (mb)

1020
1019
1018
1018
1018
1018
1017
1016
1016
1015
1015
1014
1014
1014
1015
1015
1015
1015
1014
1014
1013
1013
1013
1013

Ozone (du)

321
321
319
318
316
318
317
319
315
309
307
306
305
308
311
318
323
326
325
324
320
312
304
297

Friday 2

Waxing Gibbous 100%

14:58

07:56

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 OK
20 OK
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad

Sun - Rise: 08:19, Set: 16:30, Transit: 12:24. Moon - Rise: 14:58, Set: 07:56. Civil Dark: 17:08 - 07:41. Nautical Dark: 17:49 - 06:59. Astro Dark: 18:29 - 06:20

Total Clouds (% Sky Obscured)

78
66
72
67
51
90
73
44
91
88
51
55
49
35
8
27
42
54
55
61
65
72
70
69

Low Clouds (% Sky Obscured)

76
66
72
67
51
90
73
44
84
79
51
55
49
32
5
24
39
46
47
55
63
71
68
65

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
35
11
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

0
0
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)

9
9
9
9
9
9
9
9
9
9
9
5
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 (%)

2
5
7
14
24
31
30
29
28
14
20
24
24
21
11
16
11
23
28
17
23
9
13
13

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)

11
11
12
13
15
15
16
18
19
19
18
17
16
16
16
16
16
16
15
15
15
15
15
16

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

69
66
67
66
72
72
71
70
62
62
64
64
61
60
59
59
59
61
63
62
61
61
60
61

Pressure (mb)

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

Ozone (du)

294
293
291
290
288
289
293
294
294
295
294
293
295
294
299
303
306
310
314
312
313
321
330
334

Saturday 3

Full Moon 99%

16:18

08:54

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 OK
21 OK
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 OK

Sun - Rise: 08:19, Set: 16:31, Transit: 12:25. Moon - Rise: 16:18, Set: 08:54. Civil Dark: 17:09 - 07:41. Nautical Dark: 17:50 - 06:59. Astro Dark: 18:30 - 06:20

Total Clouds (% Sky Obscured)

68
65
73
79
69
69
66
65
58
53
52
54
57
46
33
17
20
25
35
40
51
41
43
26

Low Clouds (% Sky Obscured)

62
64
72
74
67
65
61
60
58
53
52
54
57
46
33
17
20
25
25
20
20
20
21
22

Medium Clouds (% Sky Obscured)

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

High Clouds (% Sky Obscured)

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

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
8
3
3
4
4
5
9
5
9
9
8
7
8
4
3
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 (%)

22
13
14
18
15
19
20
27
30
26
25
23
17
17
21
20
22
29
26
22
25
19
19
19

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)

16
16
16
16
16
15
15
15
15
15
15
14
13
12
12
12
11
11
9
9
9
8
8
8

Chance of Frost

Temperature (°C)

5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
4
4
4
4
4
4
4
4
4

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

62
62
62
61
62
62
63
63
65
68
71
69
66
66
63
68
71
72
73
72
73
71
68
68

Pressure (mb)

1014
1015
1015
1015
1016
1016
1017
1017
1017
1017
1017
1018
1018
1019
1019
1019
1020
1020
1020
1020
1020
1021
1021
1021

Ozone (du)

337
341
349
351
347
345
348
347
346
342
337
335
335
335
334
336
336
335
334
330
326
324
326
329

Sunday 4

Waning Gibbous 96%

17:46

09:33

05 OK
06 OK
07 OK
08 OK
09 OK
10 OK
11 OK
12 Bad
13 Bad
14 Bad
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

Sun - Rise: 08:18, Set: 16:32, Transit: 12:25. Moon - Rise: 17:46, Set: 09:33. Civil Dark: 17:10 - 07:41. Nautical Dark: 17:51 - 06:59. Astro Dark: 18:31 - 06:20

Total Clouds (% Sky Obscured)

21
17
17
27
17
24
34
46
66
80
78
76
73
38
47
56
49
61
54
66
70
71
64
62

Low Clouds (% Sky Obscured)

21
16
11
1
1
2
4
9
20
25
21
17
13
23
43
56
49
53
42
39
35
26
32
37

Medium Clouds (% Sky Obscured)

0
1
5
27
10
15
14
18
17
35
19
25
25
19
23
22
29
38
49
58
70
71
64
62

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
5
6
13
14
11
8
5
3

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

11
18
17
9
12
12
8
16
17
15
29
24
36
66
73
71
68
57
40
39
36
27
33
30

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-2
-2
-3
-2
-2
-1
-2
-3
-3
-1
1
3
3
3
3
3
4
3
3
3
3
2
1
1

Relative Humidity (%)

68
67
64
67
69
69
63
57
57
65
73
94
96
96
96
96
98
96
96
94
91
88
82
83

Pressure (mb)

1021
1021
1021
1021
1022
1022
1022
1022
1022
1022
1021
1022
1021
1021
1023
1022
1022
1022
1022
1022
1023
1023
1023
1023

Ozone (du)

332
336
338
337
336
337
335
338
339
340
341
342
339
338
339
340
342
341
341
341
343
346
348
352

Monday 5

Waning Gibbous 90%

19:14

10:00

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

Sun - Rise: 08:18, Set: 16:33, Transit: 12:26. Moon - Rise: 19:14, Set: 10:00. Civil Dark: 17:11 - 07:40. Nautical Dark: 17:52 - 06:59. Astro Dark: 18:32 - 06:20

Total Clouds (% Sky Obscured)

55
41
25
10
15
21
21
16
10
5
9
14
17
26
33
43
46
49
53
48
45
43
50
57

Low Clouds (% Sky Obscured)

43
32
21
8
15
21
21
16
10
2
5
8
11
20
29
39
35
30
24
21
19
18
26
31

Medium Clouds (% Sky Obscured)

55
38
18
0
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
3
6
6
12
18

High Clouds (% Sky Obscured)

2
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
11
22
34
28
19
11
9
6

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 (%)

14
21
18
4
14
16
10
14
12
6
11
10
4
11
11
5
13
13
5
12
13
4
11
11

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
8
8
9
10
11
12
14
12
11
10
9
9
8
8
8
8
7
7
7
8
9
10
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

1
1
0
0
-0
-0
-0
-0
4
4
4
4
4
4
2
2
2
2
2
2
0
1
1
1

Dew Point (°C)

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

Relative Humidity (%)

85
84
83
81
79
76
75
72
73
76
78
78
78
76
77
76
76
76
76
74
76
77
77
77

Pressure (mb)

1023
1024
1024
1025
1026
1026
1026
1027
1027
1027
1028
1028
1029
1029
1030
1030
1031
1031
1031
1031
1031
1031
1031
1031

Ozone (du)

356
360
365
371
376
376
376
377
374
371
368
367
366
366
362
359
355
355
355
355
354
352
351
352

Tuesday 6

Waning Gibbous 83%

20:37

10:20

Sun - Rise: 08:18, Set: 16:35, Transit: 12:26. Moon - Rise: 20:37, Set: 10:20. Civil Dark: 17:12 - 07:40. Nautical Dark: 17:54 - 06:59. Astro Dark: 18:33 - 06:20

Total Clouds (% Sky Obscured)

Low Clouds (% Sky Obscured)

Medium Clouds (% Sky Obscured)

High Clouds (% Sky Obscured)

ISS Passover

Visibility (miles)

Fog (%)

Precipitation Type

Precipitation Probability (%)

Precipitation Amount (mm)

Wind Speed/Direction (mph)

Chance of Frost

Temperature (°C)

Feels Like (°C)

Dew Point (°C)

Relative Humidity (%)

Pressure (mb)

Ozone (du)

Forecast for Constantine, Cornwall, United Kingdom (50.12,-5.17)

Generated: 31/12/25 05:06:23. Forecast: 31/12/25 to 06/01/26. Timezone: UTC+0.00