Clear Outside v1.0 - International Weather Forecasts For Astronomers

Wednesday 31

Waxing Gibbous 91%

13:35

06:37

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

Sun - Rise: 08:14, Set: 16:11, Transit: 12:13. Moon - Rise: 13:35, 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)

38
31
41
44
0
17
49
68
85
88
68
79
44
61
62
99
100
79
77
64
100
98
80
66

Low Clouds (% Sky Obscured)

7
29
32
19
0
14
46
55
81
88
66
65
0
0
37
52
39
61
67
33
24
34
44
38

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
4
10
17
16
0
0
0
0
0

High Clouds (% Sky Obscured)

4
4
4
4
0
5
8
22
39
41
44
64
44
61
62
99
100
15
4
23
100
98
79
66

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 (%)

3
13
20
2
2
1
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
1
3
4
1
1
2
1
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)

4
4
4
4
5
5
6
6
6
5
6
8
9
9
10
9
11
11
11
12
12
13
13
13

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

89
91
91
89
89
89
89
92
91
92
84
78
75
84
88
89
86
86
86
85
89
79
74
72

Pressure (mb)

1028
1027
1027
1026
1026
1025
1024
1023
1022
1021
1020
1019
1018
1017
1016
1016
1015
1015
1014
1014
1013
1013
1012
1012

Ozone (du)

301
301
298
298
300
304
305
305
307
308
311
308
303
303
303
308
318
324
320
318
331
346
366
369

Thursday 1

Waxing Gibbous 97%

14:37

07:54

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

Sun - Rise: 08:14, Set: 16:12, Transit: 12:13. Moon - Rise: 14:37, 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)

39
31
30
76
23
59
78
77
55
41
51
77
83
74
81
86
100
100
86
11
60
8
0
18

Low Clouds (% Sky Obscured)

36
27
30
69
23
45
33
34
36
25
29
37
35
62
43
71
89
100
73
6
60
8
0
18

Medium Clouds (% Sky Obscured)

0
0
0
7
0
18
38
41
28
24
27
43
61
74
32
39
55
65
58
4
0
0
0
0

High Clouds (% Sky Obscured)

35
22
1
1
0
1
1
0
0
1
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
0
9
3
0
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
None
None
Light Rain
Very Light Rain
None
None
None
None
None
None

Precipitation Probability (%)

1
0
0
0
0
0
0
0
0
0
0
6
17
48
41
51
63
63
46
8
0
0
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0
0
0.4
0.3
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

76
83
91
91
93
93
93
93
91
91
91
79
81
85
98
96
93
94
85
83
70
67
65
68

Pressure (mb)

1012
1012
1012
1012
1012
1012
1012
1012
1011
1011
1011
1010
1010
1009
1009
1010
1010
1010
1011
1011
1011
1011
1011
1012

Ozone (du)

370
365
365
365
367
363
357
348
348
347
346
345
342
342
344
343
343
343
341
330
325
327
322
313

Friday 2

Waxing Gibbous 100%

15:58

08:50

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

Sun - Rise: 08:13, Set: 16:13, Transit: 12:14. Moon - Rise: 15:58, 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)

6
0
0
0
0
5
0
0
0
0
1
30
33
28
11
19
4
2
6
3
5
9
11
7

Low Clouds (% Sky Obscured)

6
0
0
0
0
4
0
0
0
0
1
24
18
1
10
18
0
2
6
3
5
9
11
7

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
11
12
12
0
0
2
0
0
0
0
0
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 (%)

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)

10
8
7
7
7
6
7
7
8
8
8
8
8
8
7
7
7
7
7
10
12
12
12
12

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

73
78
80
80
78
78
78
78
78
78
75
75
75
74
74
74
75
74
67
58
55
54
53
55

Pressure (mb)

1012
1013
1013
1014
1014
1014
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1016
1016
1016
1017
1016
1017
1017
1017

Ozone (du)

311
301
292
291
295
297
300
306
306
308
321
337
344
342
344
345
346
342
339
340
342
346
347
345

Saturday 3

Full Moon 99%

15:58

09:29

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

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)

4
0
0
0
0
0
0
0
3
7
7
11
16
20
21
32
33
36
38
48
56
58
61
43

Low Clouds (% Sky Obscured)

4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
3
7
7
11
16
20
21
32
33
36
38
35
28
35
40
32

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
2
1
1
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
1
3
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
9
8
7
7
7
6
5
5
4
4
4
4
4
4
3
3
3
3
4
6
7
7
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-6
-6
-6
-6
-7
-7
-7
-6
-7
-7
-7
-7
-7
-7
-7
-7
-7
-8
-8
-7
-7
-7
-6
-5

Relative Humidity (%)

58
62
62
66
65
63
64
68
68
67
66
66
67
68
68
69
69
67
60
56
52
52
55
61

Pressure (mb)

1017
1018
1018
1018
1019
1019
1019
1020
1020
1020
1020
1021
1021
1020
1020
1021
1021
1022
1022
1022
1022
1022
1021
1021

Ozone (du)

349
348
344
331
325
325
327
331
335
337
337
330
332
335
336
335
337
338
340
342
343
344
346
345

Sunday 4

Waning Gibbous 96%

17:28

09:54

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

Sun - Rise: 08:13, Set: 16:15, Transit: 12:15. Moon - Rise: 17:28, Set: 09:54. Civil Dark: 16:55 - 07:33. Nautical Dark: 17:37 - 06:51. Astro Dark: 18:18 - 06:11

Total Clouds (% Sky Obscured)

25
7
33
59
76
80
87
86
73
52
39
29
17
5
0
0
0
0
0
0
0
0
0
1

Low Clouds (% Sky Obscured)

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

Medium Clouds (% Sky Obscured)

17
6
21
41
55
57
53
55
44
39
25
16
8
0
0
0
0
0
0
0
0
0
0
1

High Clouds (% Sky Obscured)

2
2
2
2
2
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 (%)

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

69
71
71
71
72
74
72
74
72
72
75
75
78
78
78
76
75
75
68
64
59
64
66
72

Pressure (mb)

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

Ozone (du)

347
349
352
355
366
374
378
381
381
381
383
378
371
370
369
369
368
368
368
368
368
368
367
367

Monday 5

Waning Gibbous 90%

18:57

10:12

16 Good
17 Good
18 Good
19 Good
20 OK
21 OK
22 OK
23 Good
00 OK
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

Sun - Rise: 08:12, Set: 16:17, Transit: 12:15. Moon - Rise: 18:57, Set: 10:12. Civil Dark: 16:56 - 07:33. Nautical Dark: 17:38 - 06:51. Astro Dark: 18:19 - 06:11

Total Clouds (% Sky Obscured)

2
3
8
12
17
15
13
9
39
69
98
98
97
97
98
99
100
100
100
100
100
100
100
68

Low Clouds (% Sky Obscured)

1
2
6
10
13
9
7
7
5
5
5
7
9
12
32
47
60
66
81
100
81
62
47
29

Medium Clouds (% Sky Obscured)

2
1
1
0
0
0
0
1
12
27
43
60
78
96
97
98
100
100
100
100
100
100
100
68

High Clouds (% Sky Obscured)

0
0
0
0
0
3
6
8
31
54
77
69
61
53
67
81
94
97
99
100
92
83
74
49

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
7
6
4
3
1
0
2
4
6

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
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
16
28
39
78
95
95
95
95
95
93

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.5
1
1.6
1.7
1.7
1.5
0.6

Wind Speed/Direction (mph)

5
5
4
5
5
5
5
5
5
6
6
7
8
10
12
13
14
13
15
17
19
15
10
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

74
78
81
83
87
89
91
92
94
94
92
92
89
84
81
83
86
89
91
94
96
98
96
94

Pressure (mb)

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

Ozone (du)

364
361
358
360
362
363
357
351
345
347
349
351
354
357
360
360
360
360
369
377
385
394
402
410

Tuesday 6

Waning Gibbous 83%

20:22

10:26

16 Bad
17 OK
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

Sun - Rise: 08:12, Set: 16:18, Transit: 12:16. Moon - Rise: 20:22, Set: 10:26. Civil Dark: 16:57 - 07:33. Nautical Dark: 17:39 - 06:51. Astro Dark: 18:20 - 06:10

Total Clouds (% Sky Obscured)

37
10
22
29
35
30
26
22
48
75
100
99
98
99
99
99
99
95
90
85

Low Clouds (% Sky Obscured)

17
1
12
23
35
30
26
22
37
51
67
68
72
77
85
89
93
91
90
85

Medium Clouds (% Sky Obscured)

37
9
11
14
15
9
5
2
32
62
92
74
52
31
33
39
40
40
45
50

High Clouds (% Sky Obscured)

25
0
0
0
0
0
0
0
32
63
95
64
33
3
32
58
72
68
70
76

ISS Passover

Visibility (miles)

7
8
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

Precipitation Type

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

Precipitation Probability (%)

56
9
14
12
2
4
4
1
17
21
23
20
20
19
30
39
39
42
55
58

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.3

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

94
94
93
94
93
94
92
94
94
94
93
93
94
94
94
94
91
91
89
88

Pressure (mb)

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

Ozone (du)

410
410
410
407
403
400
398
395
392
393
394
395
377
359
341
330
320
310
309
308

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

Generated: 31/12/25 16:35:12. Forecast: 31/12/25 to 06/01/26. Timezone: UTC+0.00