Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 29

Waxing Gibbous 72%

12:05

03:35

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

Sun - Rise: 08:14, Set: 16:09, Transit: 12:11. Moon - Rise: 12:05, 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)

94
91
83
68
58
56
57
65
72
84
96
100
84
83
84
91
87
89
92
83
90
95
91
71

Low Clouds (% Sky Obscured)

62
56
66
59
54
54
57
65
72
84
96
100
84
82
83
90
86
89
91
79
74
90
80
56

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)

64
45
34
8
8
4
3
3
2
2
2
4
4
7
5
6
10
19
57
55
64
72
77
51

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
1
0
0
0
1
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
11
8
8
9
11
12
12
13
13
13
12
12
11
11
10
10
10
12
12
12
11
12

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

93
94
94
94
96
93
88
83
82
78
79
76
72
73
72
72
73
72
72
82
91
88
86
73

Pressure (mb)

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

Ozone (du)

304
303
305
305
303
297
293
292
290
291
291
290
290
288
287
282
277
273
272
274
275
278
280
279

Tuesday 30

Waxing Gibbous 82%

12:25

05:07

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

Sun - Rise: 08:14, Set: 16:10, Transit: 12:12. Moon - Rise: 12:25, 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)

93
85
84
56
49
32
49
29
5
23
26
0
21
20
22
23
10
15
43
23
4
15
4
0

Low Clouds (% Sky Obscured)

55
41
52
56
41
19
31
4
0
3
6
0
21
9
0
0
0
14
43
23
4
15
4
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)

78
64
56
8
19
22
29
27
5
19
18
0
1
20
22
19
9
1
1
1
0
0
1
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)

13
12
13
13
12
12
12
13
13
11
10
8
7
6
6
5
5
4
4
4
4
4
3
3

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

68
64
63
60
60
62
60
59
58
65
71
77
88
89
91
93
92
92
92
92
92
94
92
94

Pressure (mb)

1033
1033
1034
1034
1035
1035
1036
1035
1035
1035
1035
1035
1035
1035
1035
1036
1036
1035
1035
1035
1035
1035
1034
1034

Ozone (du)

281
281
280
282
284
289
290
293
299
303
303
303
303
303
302
303
306
304
306
304
303
303
305
307

Wednesday 31

Waxing Gibbous 91%

12:53

05:07

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

Sun - Rise: 08:14, Set: 16:11, Transit: 12:12. Moon - Rise: 12:53, Set: 05:07. Civil Dark: 16:51 - 07:34. Nautical Dark: 17:33 - 06:51. Astro Dark: 18:14 - 06:11

Total Clouds (% Sky Obscured)

0
0
0
1
3
3
3
5
12
12
5
6
22
27
21
14
13
68
95
96
98
100
95
90

Low Clouds (% Sky Obscured)

0
0
0
1
1
1
1
1
1
1
1
0
20
25
9
0
0
1
7
26
48
69
72
72

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
1
3
2
0
1
5
7
1
4
1
2
9
13
11
64
90
93
97
100
84
65

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

92
92
92
92
89
80
74
70
70
70
77
88
89
89
89
89
89
91
91
91
91
91
92
94

Pressure (mb)

1034
1033
1033
1033
1033
1033
1032
1031
1030
1030
1029
1029
1028
1028
1027
1026
1026
1025
1024
1023
1022
1021
1020
1019

Ozone (du)

308
309
311
311
311
311
311
312
313
313
313
310
310
308
310
311
313
315
316
316
320
322
323
322

Thursday 1

Waxing Gibbous 97%

13:35

06:37

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

Sun - Rise: 08:14, Set: 16:12, Transit: 12:13. Moon - Rise: 13:35, Set: 06:37. Civil Dark: 16:52 - 07:34. Nautical Dark: 17:34 - 06:51. Astro Dark: 18:15 - 06:11

Total Clouds (% Sky Obscured)

86
81
77
76
84
89
81
62
35
25
74
81
80
77
64
15
19
22
30
32
33
35
41
50

Low Clouds (% Sky Obscured)

74
52
31
15
21
40
52
50
35
25
57
59
56
51
46
15
19
22
30
31
29
28
35
42

Medium Clouds (% Sky Obscured)

0
16
31
47
40
34
31
20
10
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

47
41
31
27
38
52
67
53
35
11
7
3
0
0
0
0
0
0
0
0
0
0
2
38

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
2
2
3
4
12
1
2
2
1
5
7
10
4
2
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
6
7
8
10
11
13
14
14
13
11
10
10
10
10
9
8
8
8
7
6
5
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

92
86
84
86
84
85
77
73
73
76
79
82
85
89
93
93
94
93
91
91
91
93
91
93

Pressure (mb)

1018
1017
1016
1015
1015
1014
1013
1012
1011
1010
1009
1009
1009
1009
1009
1009
1009
1008
1008
1008
1007
1007
1007
1007

Ozone (du)

318
318
318
321
320
317
324
321
320
321
317
314
312
308
305
306
304
304
307
306
304
301
303
300

Friday 2

Waxing Gibbous 100%

14:37

07:54

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

Sun - Rise: 08:14, Set: 16:13, Transit: 12:13. Moon - Rise: 14:37, Set: 07:54. Civil Dark: 16:53 - 07:34. Nautical Dark: 17:35 - 06:51. Astro Dark: 18:16 - 06:11

Total Clouds (% Sky Obscured)

55
46
36
31
39
40
45
41
42
33
26
24
22
4
9
26
22
23
29
32
35
38
41
50

Low Clouds (% Sky Obscured)

45
38
30
21
27
32
35
34
31
28
19
9
1
4
9
26
22
23
22
30
35
38
41
50

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
4
8
12
0
0
0
0
0
0
0
1
1
19
37

High Clouds (% Sky Obscured)

27
25
27
31
25
25
21
18
20
20
1
1
1
3
1
2
2
3
4
14
19
30
35
45

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
1
1
5
4

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
5
5
5
5
6
7
7
7
6
6
5
5
5
6
6
6
6
6
6
5
6
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

91
91
89
89
91
86
80
77
76
79
85
89
91
89
89
88
86
88
89
89
87
86
84
88

Pressure (mb)

1007
1006
1006
1006
1006
1006
1006
1005
1004
1004
1003
1003
1003
1003
1003
1002
1002
1002
1002
1001
1001
1001
1000
1000

Ozone (du)

297
294
295
295
293
293
294
292
289
291
294
299
300
297
298
300
301
303
304
306
309
313
316
330

Saturday 3

Full Moon 99%

15:58

08:50

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

Sun - Rise: 08:13, Set: 16:14, Transit: 12:14. Moon - Rise: 15:58, Set: 08:50. Civil Dark: 16:54 - 07:34. Nautical Dark: 17:36 - 06:51. Astro Dark: 18:17 - 06:11

Total Clouds (% Sky Obscured)

56
51
50
46
52
56
58
71
84
94
96
96
86
85
85
75
50
30
20
27
42
50
48
53

Low Clouds (% Sky Obscured)

56
51
50
46
49
43
34
42
57
71
59
44
30
31
34
34
25
18
15
27
38
50
48
49

Medium Clouds (% Sky Obscured)

56
51
50
46
52
56
58
71
77
69
68
66
50
55
75
75
50
30
20
27
42
50
48
53

High Clouds (% Sky Obscured)

35
15
10
5
0
0
0
0
0
0
0
5
15
20
25
25
20
15
15
15
10
10
10
14

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
8
8
8
9
9
9
9
9
9
8
8
6
4
2
1

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
Snow
Snow

Precipitation Probability (%)

0
4
3
1
5
6
2
20
23
17
31
30
16
26
24
16
26
26
18
32
36
34
41
48

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
0.1
0.2

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-2
-2
-3
-4
-4
-4
-4
-4
-3
-4
-5
-5
-5
-5
-6
-6
-6
-6
-6
-6
-7
-7
-7
-7

Dew Point (°C)

-1
-1
-1
-2
-2
-2
-2
-2
-4
-5
-7
-6
-6
-6
-6
-7
-7
-7
-6
-6
-5
-4
-4
-3

Relative Humidity (%)

89
92
91
91
92
87
83
78
73
66
60
62
66
68
66
63
61
64
68
72
79
84
89
92

Pressure (mb)

999
999
999
999
999
999
998
998
998
997
997
996
996
996
996
996
996
996
996
996
996
996
996
996

Ozone (du)

343
357
358
360
361
362
363
363
364
364
364
366
367
368
368
368
368
368
367
367
368
370
372
374

Sunday 4

Waning Gibbous 96%

17:28

09:29

Sun - Rise: 08:13, Set: 16:15, Transit: 12:14. Moon - Rise: 17:28, Set: 09:29. Civil Dark: 16:55 - 07:34. Nautical Dark: 17:37 - 06:51. Astro Dark: 18:18 - 06:11

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

Generated: 29/12/25 05:15:57. Forecast: 29/12/25 to 04/01/26. Timezone: UTC+0.00