Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 28

Waxing Gibbous 61%

12:05

02:06

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
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad

Sun - Rise: 08:14, Set: 16:08, Transit: 12:11. Moon - Rise: 12:05, Set: 02:06. Civil Dark: 16:48 - 07:34. Nautical Dark: 17:31 - 06:51. Astro Dark: 18:11 - 06:11

Total Clouds (% Sky Obscured)

96
91
91
92
89
92
64
87
87
64
85
69
74
73
71
76
77
76
60
68
68
64
58
66

Low Clouds (% Sky Obscured)

73
66
87
65
88
88
60
83
84
62
84
68
73
72
70
76
76
75
60
68
68
64
58
66

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
8
8
5
4
60
50
60
54
40
40
50
46
49
49
33
56
48
22
6
5
3
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
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

78
79
80
78
73
85
93
94
96
98
98
98
98
96
96
96
96
96
96
96
96
93
86
85

Pressure (mb)

1032
1031
1031
1030
1030
1030
1030
1030
1030
1030
1029
1029
1029
1029
1029
1029
1028
1028
1028
1029
1029
1029
1029
1029

Ozone (du)

331
331
329
327
325
325
324
321
320
317
314
311
307
304
304
307
306
307
308
308
307
306
302
299

Monday 29

Waxing Gibbous 72%

12:25

03:35

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
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Good
12 Good

Sun - Rise: 08:14, Set: 16:09, Transit: 12:12. Moon - Rise: 12:25, Set: 03:35. Civil Dark: 16:49 - 07:34. Nautical Dark: 17:32 - 06:51. Astro Dark: 18:12 - 06:11

Total Clouds (% Sky Obscured)

80
82
86
84
98
94
91
96
85
88
67
80
77
83
82
91
83
85
73
88
63
47
10
2

Low Clouds (% Sky Obscured)

80
82
86
84
98
89
91
96
85
86
67
80
74
80
81
88
71
66
58
80
53
47
7
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)

1
0
1
1
1
45
12
2
2
17
5
17
29
36
24
33
48
60
48
42
27
21
10
2

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)

12
12
13
13
12
11
12
11
11
11
10
10
10
10
9
10
11
12
12
12
11
12
13
12

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

83
86
82
79
77
75
72
75
75
73
72
69
75
82
88
76
67
63
62
61
60
61
59
61

Pressure (mb)

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

Ozone (du)

296
294
293
292
289
284
280
276
275
274
274
276
279
280
282
283
285
286
287
290
294
296
295
293

Tuesday 30

Waxing Gibbous 82%

12:53

05:07

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

Sun - Rise: 08:14, Set: 16:10, Transit: 12:12. Moon - Rise: 12:53, Set: 05:07. Civil Dark: 16:50 - 07:34. Nautical Dark: 17:32 - 06:51. Astro Dark: 18:13 - 06:11

Total Clouds (% Sky Obscured)

14
26
21
9
45
25
35
36
16
3
6
1
1
2
3
4
5
4
5
5
6
2
3
8

Low Clouds (% Sky Obscured)

11
11
8
1
23
2
2
2
0
0
1
0
0
1
1
1
1
1
1
1
1
1
1
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)

3
12
16
8
11
7
11
16
7
1
4
1
0
1
1
1
1
1
3
5
6
1
1
7

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)

11
11
10
8
7
6
6
5
5
4
4
4
4
3
3
3
3
2
2
2
1
1
1
2

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

62
65
73
82
89
91
89
91
92
92
91
92
91
92
92
92
92
92
92
91
89
80
74
70

Pressure (mb)

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

Ozone (du)

293
293
295
297
299
301
303
304
307
309
309
307
305
304
304
306
305
306
307
309
308
308
308
310

Wednesday 31

Waxing Gibbous 91%

12:53

06:37

13 Good
14 Good
15 Good
16 Good
17 OK
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

Sun - Rise: 08:14, Set: 16:11, Transit: 12:13. Moon - Rise: 12:53, Set: 06:37. Civil Dark: 16:51 - 07:34. Nautical Dark: 17:33 - 06:51. Astro Dark: 18:14 - 06:11

Total Clouds (% Sky Obscured)

10
16
14
17
34
62
77
71
81
91
100
100
100
100
100
100
100
98
96
93
95
98
100
100

Low Clouds (% Sky Obscured)

0
0
0
0
0
10
19
27
22
19
15
28
41
57
63
71
88
84
81
78
81
84
90
77

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
22
40
55
42
47
49
90
69
62
55

High Clouds (% Sky Obscured)

7
11
13
17
33
57
77
71
81
91
100
100
100
100
100
100
99
77
48
31
36
47
45
60

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
2
3
1
9
8
4
11
25
30
34

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

69
70
77
86
87
87
87
91
91
91
91
91
92
91
89
87
84
75
78
81
81
80
85
91

Pressure (mb)

1030
1029
1028
1028
1027
1026
1026
1025
1024
1024
1023
1022
1021
1020
1018
1017
1016
1015
1014
1013
1012
1011
1010
1009

Ozone (du)

312
314
313
314
314
316
315
316
317
317
317
317
319
321
321
321
324
325
322
321
323
322
322
322

Thursday 1

Waxing Gibbous 97%

13:35

07:54

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 OK
05 OK
06 OK
07 OK
08 OK
09 OK
10 OK
11 OK
12 OK

Sun - Rise: 08:14, Set: 16:12, Transit: 12:13. Moon - Rise: 13:35, Set: 07:54. Civil Dark: 16:52 - 07:34. Nautical Dark: 17:34 - 06:51. Astro Dark: 18:15 - 06:11

Total Clouds (% Sky Obscured)

100
100
100
100
88
93
92
88
75
61
46
49
43
47
42
37
33
35
36
35
36
38
41
41

Low Clouds (% Sky Obscured)

64
52
53
62
69
63
52
40
40
42
46
46
43
47
42
37
33
35
36
35
36
38
41
40

Medium Clouds (% Sky Obscured)

65
60
60
55
55
50
53
43
29
13
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

80
97
99
100
76
68
56
44
31
20
2
2
2
3
2
1
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

1
0
1
2
6
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 (%)

35
32
28
20
9
17
14
4
8
6
0
1
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
10
10
9
8
8
8
8
8
8
8
8
7
7
7
7
7
7
8
8
8
9
10
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

96
94
93
94
98
96
94
93
94
96
93
91
93
91
91
91
89
91
89
91
89
84
80
76

Pressure (mb)

1008
1007
1006
1006
1005
1005
1005
1005
1005
1004
1004
1004
1004
1004
1004
1004
1004
1004
1004
1004
1004
1004
1004
1004

Ozone (du)

323
325
327
328
328
326
330
334
344
348
348
348
347
345
344
341
338
334
327
319
311
310
308
307

Friday 2

Waxing Gibbous 100%

14:37

08:50

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

Sun - Rise: 08:13, Set: 16:13, Transit: 12:14. Moon - Rise: 14:37, Set: 08:50. Civil Dark: 16:53 - 07:34. Nautical Dark: 17:35 - 06:51. Astro Dark: 18:16 - 06:11

Total Clouds (% Sky Obscured)

39
38
37
35
26
23
22
14
39
67
95
70
51
45
37
33
20
19
19
18
14
8
3
2

Low Clouds (% Sky Obscured)

36
33
31
28
26
23
22
14
39
56
68
49
29
9
12
15
19
18
17
16
13
8
3
2

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
1
1
4
6
8
15
23
31
21
11
3
3
3
2
2
1
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
6
3
0
3
6
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
4
8
11
22
23
19
13
6
0
2
2
1
2
1
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

79
80
85
86
88
87
89
91
92
92
94
94
91
89
87
87
86
84
84
86
86
75
67
61

Pressure (mb)

1004
1004
1003
1003
1003
1003
1003
1003
1003
1003
1003
1003
1003
1003
1003
1002
1002
1002
1003
1003
1004
1004
1004
1004

Ozone (du)

303
300
296
298
300
301
305
309
312
317
322
327
335
342
350
358
366
375
379
383
387
391
395
400

Saturday 3

Full Moon 99%

15:58

09:29

13 Good
14 Good
15 OK
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 OK
22 OK
23 Good
00 OK
01 OK
02 OK
03 OK
04 OK
05 Good

Sun - Rise: 08:13, Set: 16:14, Transit: 12:14. Moon - Rise: 15:58, Set: 09:29. Civil Dark: 16:54 - 07:34. Nautical Dark: 17:36 - 06:51. Astro Dark: 18:17 - 06:11

Total Clouds (% Sky Obscured)

1
0
27
54
81
68
57
49
42
32
18
19
21
25
24
18
14

Low Clouds (% Sky Obscured)

1
0
4
8
15
18
17
19
19
17
18
19
21
25
24
18
14

Medium Clouds (% Sky Obscured)

0
0
24
46
69
68
57
49
34
15
1
1
1
1
2
2
2

High Clouds (% Sky Obscured)

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

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 (%)

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

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

0
-0
-1
-1
-1
-1
-6
-5
-5
-5
-6
-6
-5
-5
-5
-5
-5

Dew Point (°C)

-5
-5
-5
-5
-5
-5
-5
-5
-5
-5
-6
-6
-6
-6
-5
-5
-5

Relative Humidity (%)

63
64
65
69
71
75
77
79
81
81
79
78
78
79
81
81
82

Pressure (mb)

1005
1005
1005
1005
1006
1006
1007
1007
1008
1008
1009
1009
1009
1010
1010
1011
1011

Ozone (du)

399
399
399
403
408
412
415
417
419
420
422
423
422
420
419
417
414

Forecast for Twerton, Bath and North East Somerset, United Kingdom (51.36,-2.38)

Generated: 28/12/25 13:44:05. Forecast: 28/12/25 to 03/01/26. Timezone: UTC+0.00