Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 29

Waxing Gibbous 72%

12:19

03:31

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

Sun - Rise: 08:11, Set: 16:03, Transit: 12:07. Moon - Rise: 12:19, Set: 03:31. Civil Dark: 16:43 - 07:31. Nautical Dark: 17:26 - 06:48. Astro Dark: 18:07 - 06:07

Total Clouds (% Sky Obscured)

99
97
79
85
76
94
83
53
45
71
54
70
82
76
85
77
37
66
40
34
10
0
0
24

Low Clouds (% Sky Obscured)

95
69
67
85
76
92
83
50
45
70
54
66
81
73
84
71
5
49
16
0
0
0
0
24

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)

2
3
17
6
6
12
15
9
6
32
43
50
51
66
69
67
37
56
40
34
7
0
0
4

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
3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
2
12
1
14
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
10
8
10
10
10
9
9
9
10
10
10
10
12
11
10
10
9
8
8
9
9
9
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

72
72
73
71
69
68
71
73
76
73
69
71
69
62
64
62
62
64
69
72
72
68
70
73

Pressure (mb)

1029
1029
1029
1029
1030
1030
1030
1030
1031
1031
1032
1032
1032
1032
1033
1033
1034
1034
1035
1035
1035
1035
1035
1035

Ozone (du)

281
277
278
277
278
281
277
278
278
275
275
277
278
279
280
278
278
282
291
302
306
309
309
307

Tuesday 30

Waxing Gibbous 82%

12:47

05:04

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

Sun - Rise: 08:11, Set: 16:04, Transit: 12:08. Moon - Rise: 12:47, Set: 05:04. Civil Dark: 16:44 - 07:31. Nautical Dark: 17:27 - 06:48. Astro Dark: 18:08 - 06:07

Total Clouds (% Sky Obscured)

0
0
0
0
9
0
32
0
0
11
0
0
23
3
0
31
27
0
0
0
0
0
0
0

Low Clouds (% Sky Obscured)

0
0
0
0
9
0
32
0
0
11
0
0
23
3
0
31
27
0
0
0
0
0
0
0

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
9
0
3
0
0
2
0
0
1
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 (%)

1
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

75
83
88
89
91
91
91
91
91
92
92
92
91
92
92
92
92
92
89
83
77
73
70
70

Pressure (mb)

1035
1035
1035
1035
1035
1035
1035
1035
1035
1035
1034
1034
1034
1034
1033
1033
1033
1033
1033
1032
1031
1030
1030
1029

Ozone (du)

306
306
306
305
304
303
302
301
302
303
303
305
306
307
307
310
312
313
314
313
313
313
314
315

Wednesday 31

Waxing Gibbous 91%

13:29

06:34

15 Good
16 Good
17 Good
18 Good
19 Good
20 Good
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

Sun - Rise: 08:11, Set: 16:05, Transit: 12:08. Moon - Rise: 13:29, Set: 06:34. Civil Dark: 16:45 - 07:31. Nautical Dark: 17:28 - 06:48. Astro Dark: 18:09 - 06:07

Total Clouds (% Sky Obscured)

0
0
0
0
0
0
44
63
74
89
62
63
97
100
100
100
44
63
100
90
58
69
73
53

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
44
63
69
26
62
63
86
57
35
29
32
44
34
34
41
58
63
53

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
23
19
13
6
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
2
7
30
85
9
5
93
99
100
100
44
55
100
70
6
1
20
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
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
6
6
2

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

77
84
88
88
87
89
89
91
91
91
89
91
92
92
89
77
77
76
74
77
76
73
77
88

Pressure (mb)

1029
1028
1028
1027
1027
1026
1025
1024
1023
1022
1021
1020
1020
1018
1017
1016
1015
1015
1014
1013
1012
1012
1011
1010

Ozone (du)

315
312
312
309
309
313
316
316
316
315
317
315
317
311
306
305
308
318
322
328
326
322
326
338

Thursday 1

Waxing Gibbous 97%

14:30

07:51

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

Sun - Rise: 08:11, Set: 16:06, Transit: 12:09. Moon - Rise: 14:30, Set: 07:51. Civil Dark: 16:46 - 07:31. Nautical Dark: 17:29 - 06:48. Astro Dark: 18:10 - 06:07

Total Clouds (% Sky Obscured)

43
37
33
26
25
22
29
37
44
48
51
54
54
80
85
67
48
20
13
12
14
15
20
21

Low Clouds (% Sky Obscured)

42
37
33
26
25
22
24
24
23
16
8
0
18
36
51
35
21
7
13
12
7
7
8
12

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
2
4
5
15
25
31
28
62
68
49
38
20
13
12
14
15
20
21

High Clouds (% Sky Obscured)

1
1
0
0
0
0
7
14
20
14
8
2
1
7
4
4
5
8
13
6
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 (%)

5
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
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)

12
11
10
10
10
10
9
9
9
9
9
8
8
8
8
8
8
8
8
9
10
10
11
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

82
86
93
91
91
91
93
92
92
92
91
91
91
91
91
86
84
86
83
83
80
77
73
75

Pressure (mb)

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

Ozone (du)

356
363
364
365
367
372
373
370
366
359
355
353
352
348
343
336
332
329
324
321
319
316
311
300

Friday 2

Waxing Gibbous 100%

No Rise

08:48

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

Sun - Rise: 08:10, Set: 16:07, Transit: 12:09. Moon - Rise: No Rise, Set: 08:48. Civil Dark: 16:47 - 07:31. Nautical Dark: 17:30 - 06:48. Astro Dark: 18:11 - 06:07

Total Clouds (% Sky Obscured)

22
14
10
14
23
32
52
71
93
96
95
72
56
34
2
78
83
83
91
96
100
100
100
100

Low Clouds (% Sky Obscured)

8
14
10
14
15
10
32
55
78
70
56
40
28
16
1
78
83
83
76
62
48
48
48
48

Medium Clouds (% Sky Obscured)

22
14
10
14
23
32
52
70
45
48
52
60
37
17
0
16
12
13
14
14
19
28
37
41

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
45
50
65
52
29
6
7
8
10

ISS Passover

Visibility (miles)

9
2
0
9
9
3
7
0
0
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 (%)

17
20
16
6
2
2
12
14
15
15
13
9
8
6
1
19
16
11
10
7
1
1
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

79
86
98
93
94
94
96
94
96
94
89
91
94
92
92
89
84
83
80
78
77
76
74
73

Pressure (mb)

1003
1002
1002
1002
1002
1001
1001
1001
1001
1001
1001
1000
1000
1000
1000
999
1001
1001
1001
1001
1001
1001
1001
1000

Ozone (du)

296
300
295
300
304
310
317
322
327
328
331
337
344
350
364
377
384
391
398
401
403
406
409
412

Saturday 3

Full Moon 99%

15:51

09:26

15 Bad
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

Sun - Rise: 08:10, Set: 16:08, Transit: 12:10. Moon - Rise: 15:51, Set: 09:26. Civil Dark: 16:48 - 07:30. Nautical Dark: 17:31 - 06:48. Astro Dark: 18:12 - 06:07

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
95
86
63
36
31
58
76
83
89
94
95
93
91
92
89
90

Low Clouds (% Sky Obscured)

32
16
0
0
0
0
1
1
2
2
3
4
4
3
2
5
6
7
19
36
55
62
70
78

Medium Clouds (% Sky Obscured)

34
32
30
23
14
10
10
15
20
25
36
36
30
30
30
25
15
20
19
14
22
23
29
31

High Clouds (% Sky Obscured)

27
46
65
70
70
75
85
90
95
86
63
36
31
58
76
75
75
75
50
27
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 (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
2
1
5
6
3
21
22
17

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)

9
9
8
8
9
9
10
10
11
11
10
10
10
10
10
9
9
9
9
10
11
12
12
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

71
73
74
75
75
75
75
77
77
80
77
74
72
69
69
67
64
63
60
56
50
45
45
46

Pressure (mb)

1000
1000
1001
1001
1001
1001
1001
1001
1001
1001
1001
1001
1001
1001
1001
1001
1002
1002
1002
1003
1003
1003
1003
1003

Ozone (du)

415
417
419
421
421
422
423
418
414
410
405
399
393
393
392
391
389
386
383
385
387
389
388
387

Sunday 4

Waning Gibbous 96%

17:21

09:51

15 Bad
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 Good
05 Good
06 OK
07 OK
08 OK
09 Bad
10 Bad
11 OK

Sun - Rise: 08:10, Set: 16:09, Transit: 12:10. Moon - Rise: 17:21, Set: 09:51. Civil Dark: 16:49 - 07:30. Nautical Dark: 17:32 - 06:47. Astro Dark: 18:13 - 06:07

Total Clouds (% Sky Obscured)

85
75
75
80
85
85
87
89
91
78
59
26
16
11
10
15
20
29
45
51
48

Low Clouds (% Sky Obscured)

68
58
46
45
44
38
39
42
42
34
26
17
16
11
10
15
10
6
7
11
13

Medium Clouds (% Sky Obscured)

25
25
15
15
10
15
15
25
30
35
35
26
16
11
10
15
15
21
18
16
18

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

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

Fog (%)

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

Precipitation Probability (%)

30
33
30
22
14
4
9
12
13
12
8
1
3
3
1
7
10
12
12
9
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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-5
-4
-5
-4
-6
-5
-5
-5
-5
-5
-6
-6
-6
-5
-5
-5
-6
-5
-4
-4
-5

Dew Point (°C)

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

Relative Humidity (%)

46
50
55
61
64
66
70
71
74
75
77
77
79
81
82
86
81
79
76
70
64

Pressure (mb)

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

Ozone (du)

386
386
385
385
385
385
385
384
383
382
380
378
376
375
374
373
378
383
388
388
387

Forecast for Culham, Oxfordshire, United Kingdom (51.66,-1.27)

Generated: 29/12/25 15:33:06. Forecast: 29/12/25 to 04/01/26. Timezone: UTC+0.00