Clear Outside v1.0 - International Weather Forecasts For Astronomers

Wednesday 31

Waxing Gibbous 91%

13:42

06:40

17 OK
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
15 Bad
16 Bad

Sun - Rise: 08:18, Set: 16:18, Transit: 12:18. Moon - Rise: 13:42, Set: 06:40. Civil Dark: 16:57 - 07:38. Nautical Dark: 17:39 - 06:56. Astro Dark: 18:19 - 06:16

Total Clouds (% Sky Obscured)

15
27
46
50
82
68
81
93
100
88
100
94
90
70
100
100
89
87
77
100
99
92
72
69

Low Clouds (% Sky Obscured)

15
27
46
50
82
68
79
93
100
87
100
79
48
46
75
89
88
79
77
86
74
74
66
69

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
12
0
0
0
0
0
0

High Clouds (% Sky Obscured)

4
5
4
32
23
48
70
70
82
81
97
94
90
70
100
100
18
0
65
81
69
54
21
23

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
30
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
6
21
20
18
12
11
0
1
11
18
13
19
13
12
6
13
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

91
93
92
91
89
91
92
92
84
72
74
83
86
89
86
89
85
85
82
83
79
76
76
79

Pressure (mb)

1028
1027
1027
1026
1025
1024
1023
1022
1021
1020
1020
1019
1017
1017
1016
1016
1016
1015
1015
1015
1014
1014
1013
1013

Ozone (du)

300
300
302
303
304
305
306
308
310
313
308
304
303
306
310
318
324
321
320
321
333
348
356
358

Thursday 1

Waxing Gibbous 97%

14:45

07:57

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 OK
14 Good
15 Good
16 Good

Sun - Rise: 08:17, Set: 16:19, Transit: 12:18. Moon - Rise: 14:45, Set: 07:57. Civil Dark: 16:58 - 07:38. Nautical Dark: 17:40 - 06:56. Astro Dark: 18:20 - 06:16

Total Clouds (% Sky Obscured)

67
68
70
56
71
71
77
75
62
75
80
94
89
85
84
88
94
89
58
43
26
1
10
1

Low Clouds (% Sky Obscured)

67
68
70
56
71
71
77
75
62
62
66
78
67
74
69
60
88
81
54
41
26
0
0
0

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
31
43
41
33
24
26
33
31
33
4
0
0
0
0
0

High Clouds (% Sky Obscured)

4
4
0
1
1
3
3
3
0
2
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
8
9
7
1
1
8
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
Very Light Rain
Light Rain
Very Light Rain
Very Light Rain
None
None
None
None
None
None
None

Precipitation Probability (%)

2
5
11
13
24
20
17
15
14
16
28
33
28
46
54
53
51
26
7
2
1
3
3
3

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.4
0.3
0.3
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

12
11
11
11
9
11
11
9
8
8
10
12
13
13
12
13
14
15
15
13
13
14
14
13

Chance of Frost

Temperature (°C)

3
3
2
2
2
2
2
2
2
2
2
2
3
3
3
3
3
3
3
3
3
3
3
2

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

80
82
76
78
76
74
77
85
89
88
85
81
82
82
86
89
96
83
75
69
68
72
73
78

Pressure (mb)

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

Ozone (du)

354
351
352
352
345
346
347
344
342
337
331
326
325
317
310
309
307
304
304
301
302
296
291
286

Friday 2

Waxing Gibbous 100%

16:05

08:54

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

Sun - Rise: 08:17, Set: 16:20, Transit: 12:19. Moon - Rise: 16:05, Set: 08:54. Civil Dark: 16:59 - 07:38. Nautical Dark: 17:41 - 06:56. Astro Dark: 18:21 - 06:16

Total Clouds (% Sky Obscured)

1
10
13
35
61
60
49
48
38
70
88
83
85
75
62
55
56
60
61
38
35
31
23
16

Low Clouds (% Sky Obscured)

0
3
3
17
46
50
46
43
38
62
79
71
73
60
51
46
45
51
59
38
35
31
23
16

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
10
18
25
19
20
13
12
12
9
0
0
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
1
1
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
6
3
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
Snow
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
1
4
13
3
1
3
16
8
10
25
38
28
23
6
3
3
2
1
1
0
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0.2
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

84
78
80
83
86
88
86
84
84
87
87
84
89
98
94
83
89
84
65
63
62
56
57
59

Pressure (mb)

1014
1014
1015
1015
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1017
1017
1017
1018
1018
1018
1018
1018
1018

Ozone (du)

284
284
291
295
298
305
305
308
314
329
337
341
342
345
344
343
339
336
338
338
341
339
339
339

Saturday 3

Full Moon 99%

No Rise

09:32

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

Sun - Rise: 08:17, Set: 16:22, Transit: 12:19. Moon - Rise: No Rise, Set: 09:32. Civil Dark: 16:59 - 07:38. Nautical Dark: 17:42 - 06:56. Astro Dark: 18:22 - 06:16

Total Clouds (% Sky Obscured)

9
6
5
3
22
38
51
82
95
98
55
48
42
37
31
22
29
38
46
76
72
58
56
56

Low Clouds (% Sky Obscured)

9
6
5
3
4
2
1
15
20
25
2
0
1
1
1
0
0
1
1
24
19
2
17
35

Medium Clouds (% Sky Obscured)

0
0
0
0
17
37
51
55
59
58
53
48
35
33
30
22
29
36
39
40
40
40
26
18

High Clouds (% Sky Obscured)

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

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

10
9
9
7
7
6
5
4
4
4
4
4
4
4
4
3
3
3
4
5
6
6
5
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-6
-7
-7
-6
-6
-7
-7
-6
-5
-5
-5
-6
-7
-8
-8
-8
-7
-7
-6
-7
-6
-4
-2
-2

Relative Humidity (%)

64
60
60
66
67
66
67
71
75
77
77
75
72
68
67
68
71
67
61
55
57
66
77
89

Pressure (mb)

1019
1019
1019
1020
1020
1020
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1022
1022
1022
1022
1022
1022
1022
1022

Ozone (du)

334
328
323
322
322
326
330
329
329
326
327
332
333
333
336
337
337
338
341
343
345
346
346
347

Sunday 4

Waning Gibbous 96%

17:34

09:58

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

Sun - Rise: 08:17, Set: 16:23, Transit: 12:20. Moon - Rise: 17:34, Set: 09:58. Civil Dark: 17:01 - 07:38. Nautical Dark: 17:43 - 06:56. Astro Dark: 18:23 - 06:15

Total Clouds (% Sky Obscured)

54
65
75
90
91
91
91
68
68
58
49
38
31
31
25
20
20
22
23
29
35
39
30
21

Low Clouds (% Sky Obscured)

52
59
63
70
67
64
62
52
52
48
44
38
31
31
25
16
16
16
16
22
30
36
30
21

Medium Clouds (% Sky Obscured)

1
23
41
70
53
55
50
43
32
20
12
6
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

1
1
1
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
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 (%)

2
7
8
5
13
13
11
6
4
0
2
1
0
6
3
0
0
0
0
0
0
0
1
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)

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

Chance of Frost

Temperature (°C)

-1
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-1
1
2
2
2
2
1

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

89
89
89
89
89
91
92
94
92
87
83
79
78
76
76
76
75
70
65
62
66
70
77
80

Pressure (mb)

1022
1022
1023
1023
1023
1023
1023
1023
1023
1024
1024
1024
1024
1025
1024
1025
1026
1026
1026
1026
1026
1027
1027
1027

Ozone (du)

349
353
358
364
374
379
376
376
378
372
366
364
363
362
363
364
365
365
366
366
363
360
357
356

Monday 5

Waning Gibbous 90%

19:04

10:16

17 Good
18 OK
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
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad

Sun - Rise: 08:16, Set: 16:24, Transit: 12:20. Moon - Rise: 19:04, Set: 10:16. Civil Dark: 17:02 - 07:37. Nautical Dark: 17:44 - 06:55. Astro Dark: 18:24 - 06:15

Total Clouds (% Sky Obscured)

16
16
15
16
29
37
35
52
69
86
89
95
100
100
100
100
100
100
100
90
79
69
64
60

Low Clouds (% Sky Obscured)

16
16
15
16
16
14
12
23
32
42
43
45
47
57
68
80
84
90
95
82
69
57
54
46

Medium Clouds (% Sky Obscured)

0
0
0
0
9
14
18
36
56
71
84
93
100
96
91
85
90
95
100
81
62
45
40
35

High Clouds (% Sky Obscured)

0
0
0
0
1
0
0
2
3
5
40
72
100
100
100
100
100
100
100
70
42
13
9
4

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
7
5
2
2
3
3
5
7
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
Moderate Rain
Light Rain
Light Rain
Very Light Rain
None
None

Precipitation Probability (%)

1
7
6
0
0
0
0
1
2
3
8
9
9
37
58
83
95
95
95
95
95
68
50
35

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.5
1.1
1.9
2.8
1.8
1
0.3
0
0

Wind Speed/Direction (mph)

4
4
4
4
4
4
4
4
5
6
7
8
10
12
12
14
15
13
13
16
13
11
11
10

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

84
87
89
91
92
92
91
91
89
86
86
86
86
86
89
93
96
96
96
94
91
88
86
88

Pressure (mb)

1027
1027
1027
1027
1027
1027
1027
1026
1026
1025
1025
1024
1023
1022
1021
1020
1019
1018
1017
1015
1015
1015
1014
1015

Ozone (du)

356
356
358
360
362
357
352
347
348
350
352
355
358
362
362
363
364
372
381
389
396
403
409
409

Tuesday 6

Waning Gibbous 83%

20:28

10:30

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: 08:16, Set: 16:25, Transit: 12:21. Moon - Rise: 20:28, Set: 10:30. Civil Dark: 17:03 - 07:37. Nautical Dark: 17:45 - 06:55. Astro Dark: 18:25 - 06:15

Total Clouds (% Sky Obscured)

64
69
68
63
63
59
55
70
85
100
99
98
96
94
95
91
94
97
100

Low Clouds (% Sky Obscured)

38
29
24
26
38
52
55
58
59
59
68
79
93
93
93
85
91
84
76

Medium Clouds (% Sky Obscured)

25
22
20
19
13
8
3
32
61
91
75
60
45
35
35
35
28
18
14

High Clouds (% Sky Obscured)

0
0
0
0
1
1
2
33
67
100
95
95
95
92
92
90
92
95
100

ISS Passover

Visibility (miles)

9
9
9
9
9
8
7
5
7
8
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

Precipitation Type

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

Precipitation Probability (%)

26
28
23
23
24
17
15
18
17
16
18
20
22
28
34
51
60
68
77

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.3
0.5

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

89
93
91
91
89
91
91
91
93
93
93
93
93
91
93
91
89
89
88

Pressure (mb)

1015
1015
1016
1016
1017
1017
1017
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1017
1017

Ozone (du)

409
409
406
402
399
397
396
395
384
373
361
346
330
314
312
309
307
306
306

Forecast for Exford, Somerset, United Kingdom (51.13,-3.64)

Generated: 31/12/25 17:30:35. Forecast: 31/12/25 to 06/01/26. Timezone: UTC+0.00