Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 30

Waxing Gibbous 82%

12:47

05:04

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

Sun - Rise: 08:11, Set: 16:05, Transit: 12:08. Moon - Rise: 12:47, Set: 05:04. Civil Dark: 16:45 - 07:31. Nautical Dark: 17:28 - 06:48. Astro Dark: 18:09 - 06:07

Total Clouds (% Sky Obscured)

36
43
38
0
0
29
28
65
69
28
0
0
0
0
0
0
0
0
5
0
0
0
0
0

Low Clouds (% Sky Obscured)

21
42
4
0
0
29
28
65
69
28
0
0
0
0
0
0
0
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)

36
11
3
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
5
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 (%)

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

81
86
88
89
91
92
92
91
92
92
92
92
92
92
89
83
76
73
69
70
77
86
89
91

Pressure (mb)

1035
1035
1035
1035
1034
1034
1034
1034
1033
1033
1033
1032
1032
1032
1032
1031
1031
1030
1029
1028
1028
1027
1026
1026

Ozone (du)

297
295
298
297
295
293
294
299
301
302
304
304
303
302
302
302
304
304
306
308
307
308
307
304

Wednesday 31

Waxing Gibbous 91%

13:29

06:34

19 Good
20 Good
21 OK
22 Bad
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

Sun - Rise: 08:11, Set: 16:06, Transit: 12:08. Moon - Rise: 13:29, Set: 06:34. Civil Dark: 16:46 - 07:31. Nautical Dark: 17:29 - 06:48. Astro Dark: 18:10 - 06:07

Total Clouds (% Sky Obscured)

0
0
27
50
24
42
97
100
100
100
79
75
85
77
100
100
66
55
88
100
100
100
55
44

Low Clouds (% Sky Obscured)

0
0
27
49
24
23
17
24
8
4
50
51
45
68
47
50
63
55
60
68
70
53
43
32

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
22
21
12
5
0
0
0
0
0
0
10
11

High Clouds (% Sky Obscured)

0
0
3
15
24
14
54
93
100
97
79
75
81
62
100
96
51
2
59
72
100
94
45
14

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
1
6
7
15
17
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

91
91
89
89
91
91
89
89
91
91
86
70
65
73
74
76
74
75
79
85
86
88
91
77

Pressure (mb)

1025
1025
1024
1023
1022
1021
1020
1019
1018
1017
1015
1014
1014
1013
1013
1012
1012
1011
1010
1010
1010
1009
1009
1009

Ozone (du)

303
303
305
306
308
310
310
308
306
304
304
306
305
309
318
319
323
324
328
354
380
387
390
388

Thursday 1

Waxing Gibbous 97%

14:30

07:51

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

Sun - Rise: 08:11, Set: 16:07, Transit: 12:09. Moon - Rise: 14:30, Set: 07:51. Civil Dark: 16:47 - 07:31. Nautical Dark: 17:30 - 06:48. Astro Dark: 18:11 - 06:07

Total Clouds (% Sky Obscured)

22
48
44
35
60
76
90
83
86
68
71
41
65
61
66
82
91
94
96
97
68
26
1
2

Low Clouds (% Sky Obscured)

22
30
43
32
47
47
49
32
8
0
12
25
18
29
33
43
65
56
47
30
15
7
1
1

Medium Clouds (% Sky Obscured)

0
8
4
7
21
76
90
76
86
30
10
9
14
16
23
70
86
89
91
96
68
15
0
0

High Clouds (% Sky Obscured)

16
40
8
3
5
16
7
14
29
22
20
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
7
2
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
Light Rain
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
2
10
28
72
93
49
31
24
19
5
4

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

80
83
84
86
89
91
91
91
93
92
92
94
94
94
92
86
82
80
94
80
80
86
91
87

Pressure (mb)

1009
1009
1009
1009
1009
1009
1009
1009
1009
1008
1008
1008
1007
1007
1007
1006
1005
1005
1005
1005
1005
1005
1005
1006

Ozone (du)

385
383
380
374
366
358
355
353
352
352
353
351
347
348
350
350
347
341
338
333
333
326
322
323

Friday 2

Waxing Gibbous 100%

15:51

08:48

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

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

Total Clouds (% Sky Obscured)

1
1
3
6
7
5
3
2
6
8
12
20
29
41
39
33
25
38
57
72
44
21
0
0

Low Clouds (% Sky Obscured)

1
0
3
5
7
5
3
0
0
0
0
6
12
18
19
18
19
11
32
25
9
0
0
0

Medium Clouds (% Sky Obscured)

0
0
0
2
0
0
0
0
3
5
9
16
22
27
21
10
0
16
57
72
38
14
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
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
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
2
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

84
83
81
81
81
79
79
81
79
78
78
78
78
78
75
70
69
65
61
64
67
72
78
77

Pressure (mb)

1006
1006
1006
1006
1006
1006
1006
1006
1006
1006
1006
1006
1006
1006
1007
1007
1007
1007
1007
1007
1007
1008
1008
1009

Ozone (du)

327
335
342
344
345
348
355
365
376
382
387
386
388
392
387
385
379
372
370
367
367
366
369
369

Saturday 3

Full Moon 99%

17:21

09:26

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

Sun - Rise: 08:10, Set: 16:09, Transit: 12:10. Moon - Rise: 17:21, Set: 09:26. Civil Dark: 16:49 - 07:30. Nautical Dark: 17:32 - 06:48. Astro Dark: 18:13 - 06:07

Total Clouds (% Sky Obscured)

0
1
31
63
90
60
33
7
5
11
1
2
1
0
7
15
23
27
31
34
53
72
91
85

Low Clouds (% Sky Obscured)

0
1
1
1
1
3
6
7
5
6
0
2
1
0
0
0
0
0
0
0
14
29
41
47

Medium Clouds (% Sky Obscured)

0
0
17
35
52
35
17
0
0
0
0
0
0
0
1
2
3
7
11
14
17
22
28
17

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
11
21
31
27

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
9
15
19
18

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-4
-5
-5
-6
-5
-5
-6
-6
-6
-6
-7
-6
-6
-6
-6
-6
-6
-5
-2
-2
-2
-1
-1
-1

Dew Point (°C)

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

Relative Humidity (%)

77
79
79
76
76
79
79
75
75
75
72
71
69
71
69
64
59
55
59
61
65
70
75
81

Pressure (mb)

1009
1010
1010
1011
1011
1011
1012
1012
1013
1013
1013
1013
1015
1016
1016
1016
1017
1017
1017
1017
1016
1016
1017
1017

Ozone (du)

369
370
372
373
370
366
368
368
366
369
372
375
380
384
389
390
391
391
389
387
385
387
389
391

Sunday 4

Waning Gibbous 96%

18:52

09:51

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

Sun - Rise: 08:10, Set: 16:11, Transit: 12:10. Moon - Rise: 18:52, Set: 09:51. Civil Dark: 16:50 - 07:30. Nautical Dark: 17:33 - 06:47. Astro Dark: 18:14 - 06:07

Total Clouds (% Sky Obscured)

79
74
49
25
2
9
30
63
70
43
25
20
15
10
5
5
5
13
23
30
40
53
61
46

Low Clouds (% Sky Obscured)

53
54
35
18
2
9
23
37
44
43
25
20
15
10
5
0
0
9
17
26
34
42
53
37

Medium Clouds (% Sky Obscured)

8
4
5
5
2
9
30
43
59
43
25
20
15
10
5
5
5
13
23
0
0
0
0
0

High Clouds (% Sky Obscured)

28
24
11
5
2
1
1
2
5
7
15
20
15
10
5
5
5
13
8
1
1
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
7
6
7
8
9
6
3
0

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 (%)

13
1
4
3
0
1
1
0
1
2
2
33
40
36
40
37
34
28
24
17
16
16
15
15

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-5
-5
-5
-5
-6
-6
-6
-6
-6
-6
-7
-7
-4
-4
-5
-5
-5
-4
-2
-2
-2
-1
-1
-1

Dew Point (°C)

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

Relative Humidity (%)

83
84
86
87
89
92
91
91
87
86
83
78
84
89
94
94
93
93
89
85
82
86
91
98

Pressure (mb)

1017
1017
1017
1017
1017
1017
1017
1017
1017
1016
1016
1016
1016
1016
1016
1016
1016
1016
1015
1015
1015
1016
1016
1017

Ozone (du)

390
389
388
385
382
379
375
370
365
365
365
366
369
372
375
377
380
382
381
381
380
383
385
387

Monday 5

Waning Gibbous 90%

No Rise

10:08

19 Bad
20 OK
21 OK
22 OK
23 OK
00 OK
01 OK
02 OK
03 OK
04 OK
05 Good
06 OK
07 OK
08 OK
09 OK
10 Bad
11 OK

Sun - Rise: 08:09, Set: 16:12, Transit: 12:11. Moon - Rise: No Rise, Set: 10:08. Civil Dark: 16:51 - 07:30. Nautical Dark: 17:34 - 06:47. Astro Dark: 18:15 - 06:07

Total Clouds (% Sky Obscured)

29
15
15
14
14
21
21
13
11
9
5
10
13
15
25
32
43

Low Clouds (% Sky Obscured)

21
15
14
8
11
8
4
2
2
2
4
6
10
12
25
32
43

Medium Clouds (% Sky Obscured)

0
0
12
14
14
19
11
3
2
1
0
0
1
1
1
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
0
0

ISS Passover

Visibility (miles)

3
6
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

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

16
13
11
7
1
1
0
0
0
0
0
0
0
0
9
10
5

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

94
93
91
92
92
92
92
92
91
91
91
91
91
89
87
87
86

Pressure (mb)

1018
1018
1019
1020
1020
1021
1021
1022
1022
1022
1023
1023
1023
1023
1024
1024
1024

Ozone (du)

387
388
388
387
387
386
382
377
372
372
372
371
373
375
376
376
376

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

Generated: 30/12/25 19:04:32. Forecast: 30/12/25 to 05/01/26. Timezone: UTC+0.00