Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 25

Waxing Crescent 39%

11:26

22:03

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

Sun - Rise: 08:13, Set: 16:06, Transit: 12:10. Moon - Rise: 11:26, Set: 22:03. Civil Dark: 16:46 - 07:34. Nautical Dark: 17:29 - 06:51. Astro Dark: 18:10 - 06:10

Total Clouds (% Sky Obscured)

9
29
50
60
100
99
100
95
83
84
80
86
94
95
96
95
96
95
96
95
95
92
92
81

Low Clouds (% Sky Obscured)

9
29
50
60
96
95
100
95
83
84
80
86
94
95
96
95
96
95
96
95
95
92
92
81

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
55
2
1
0
0
3
0
0
0
0
0

High Clouds (% Sky Obscured)

0
0
39
4
0
0
0
0
0
0
0
0
0
0
6
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)

17
16
14
12
11
10
10
10
9
9
10
10
11
11
11
13
14
14
15
14
14
13
13
12

Chance of Frost

Temperature (°C)

2
2
1
1
2
2
2
2
2
2
2
2
2
2
2
2
2
3
3
3
3
3
3
3

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

69
71
74
77
77
80
81
83
85
86
84
84
84
86
83
80
76
74
76
77
79
85
88
91

Pressure (mb)

1027
1027
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028
1029
1029
1029
1029
1030
1029
1029
1029
1029
1029
1030
1031

Ozone (du)

362
364
366
365
365
365
362
362
359
358
357
357
358
360
362
367
368
364
364
366
365
363
358
354

Friday 26

Waxing Crescent 50%

11:37

23:22

19 Bad
20 Bad
21 Bad
22 Bad
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 Bad
17 Bad
18 Bad

Sun - Rise: 08:14, Set: 16:07, Transit: 12:10. Moon - Rise: 11:37, Set: 23:22. Civil Dark: 16:47 - 07:34. Nautical Dark: 17:30 - 06:51. Astro Dark: 18:11 - 06:10

Total Clouds (% Sky Obscured)

79
86
90
88
87
89
88
86
88
89
72
26
58
89
83
85
85
83
82
82
83
94
89
83

Low Clouds (% Sky Obscured)

79
86
90
88
87
89
85
86
87
89
72
26
58
89
83
85
85
83
82
82
83
94
89
83

Medium Clouds (% Sky Obscured)

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

High Clouds (% Sky Obscured)

0
1
1
1
5
8
29
21
21
12
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)

12
12
11
10
10
10
11
12
12
12
12
12
12
12
14
16
16
16
18
18
17
15
16
18

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

2
2
2
2
2
2
1
1
1
0
0
-1
-2
-2
-1
0
1
2
3
3
4
6
5
4

Relative Humidity (%)

93
94
94
94
96
96
93
88
88
88
86
83
81
81
81
77
78
78
79
81
85
94
91
87

Pressure (mb)

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

Ozone (du)

350
347
345
341
337
333
331
330
327
324
321
319
318
317
317
315
313
313
313
312
312
311
311
311

Saturday 27

First Quarter 61%

11:50

00:42

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
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad

Sun - Rise: 08:14, Set: 16:08, Transit: 12:11. Moon - Rise: 11:50, Set: 00:42. Civil Dark: 16:48 - 07:34. Nautical Dark: 17:31 - 06:51. Astro Dark: 18:11 - 06:11

Total Clouds (% Sky Obscured)

89
96
83
98
95
100
98
85
60
78
74
80
85
72
61
72
77
79
79
78
81
83
87
86

Low Clouds (% Sky Obscured)

89
96
83
98
95
100
97
85
60
78
73
73
72
53
55
65
70
79
78
78
80
83
87
84

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
0
1
0
1
1
30
3
14
44
44
6
7
12
2
1
1
1
1
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)

16
14
15
14
14
14
14
12
12
11
10
10
10
10
9
9
11
12
12
12
12
12
12
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

82
83
83
83
82
79
79
78
93
96
98
96
96
96
98
93
91
85
82
78
78
76
75
75

Pressure (mb)

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

Ozone (du)

312
311
309
309
311
312
310
307
306
305
304
304
303
303
302
302
304
305
306
307
306
305
305
305

Sunday 28

Waxing Gibbous 58%

12:05

02:06

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

Sun - Rise: 08:14, Set: 16:09, Transit: 12:11. Moon - Rise: 12:05, Set: 02:06. Civil Dark: 16:49 - 07:34. Nautical Dark: 17:32 - 06:51. Astro Dark: 18:12 - 06:11

Total Clouds (% Sky Obscured)

86
71
54
47
44
41
41
37
29
28
27
27
40
41
43
45
55
62
65
66
71
76
81
80

Low Clouds (% Sky Obscured)

83
71
54
47
44
41
41
37
29
28
27
27
40
41
43
45
55
59
58
56
61
69
69
70

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

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

75
75
83
89
91
94
96
96
96
96
96
94
96
96
96
91
86
83
82
83
86
93
96
94

Pressure (mb)

1031
1031
1031
1031
1031
1030
1030
1030
1030
1030
1030
1030
1030
1030
1031
1031
1031
1030
1030
1030
1029
1030
1030
1031

Ozone (du)

306
309
311
312
314
314
314
313
312
313
313
311
309
307
303
301
302
301
297
296
296
294
292
288

Monday 29

Waxing Gibbous 72%

12:25

03:35

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
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad

Sun - Rise: 08:14, Set: 16:10, Transit: 12:12. Moon - Rise: 12:25, Set: 03:35. Civil Dark: 16:50 - 07:34. Nautical Dark: 17:32 - 06:51. Astro Dark: 18:13 - 06:11

Total Clouds (% Sky Obscured)

78
72
74
79
78
84
92
99
95
91
88
77
84
93
86
79
72
81
91
100
100
94
89
89

Low Clouds (% Sky Obscured)

67
66
70
71
70
78
88
98
92
88
83
52
55
58
63
63
66
59
50
42
29
15
2
2

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
16
31
25
15

High Clouds (% Sky Obscured)

9
13
17
16
16
21
24
29
29
25
31
42
59
66
62
52
42
61
76
85
79
69
72
87

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
1
0
2
2
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)

7
7
6
6
9
8
8
8
9
7
7
8
5
4
4
4
5
5
5
5
6
5
4
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

94
96
96
96
83
79
76
74
71
72
71
71
70
70
72
73
73
73
76
80
83
86
89
91

Pressure (mb)

1031
1032
1032
1032
1032
1032
1032
1032
1032
1032
1032
1032
1033
1033
1033
1033
1033
1033
1033
1032
1032
1032
1032
1032

Ozone (du)

287
289
288
291
287
283
282
281
281
282
281
280
280
281
281
283
285
287
293
299
305
310
315
320

Tuesday 30

Waxing Gibbous 82%

12:53

05:07

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

83
82
74
70
68
49
36
31
44
60
76
57
38
28
52
72
84
87
84
86
88
85
79
68

Low Clouds (% Sky Obscured)

2
2
3
3
5
3
4
4
5
5
5
4
3
2
11
23
35
34
32
30
38
43
51
52

Medium Clouds (% Sky Obscured)

15
10
8
7
7
11
18
24
26
27
40
30
14
10
11
12
12
9
5
2
8
15
22
18

High Clouds (% Sky Obscured)

83
82
74
70
56
49
36
31
44
60
75
57
38
28
52
72
84
82
81
76
81
82
79
68

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
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)

4
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
2

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-1
-1
-1
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-1
-1
-1
-1
-1
-2
-2

Relative Humidity (%)

91
91
92
91
91
92
91
91
91
92
91
92
91
91
89
83
77
72
74
76
77
81
83
88

Pressure (mb)

1032
1032
1032
1032
1032
1031
1031
1031
1031
1030
1030
1030
1030
1030
1030
1029
1029
1028
1028
1027
1026
1026
1025
1025

Ozone (du)

319
318
316
318
320
321
325
328
332
332
333
334
336
338
339
340
341
342
346
349
352
348
344
340

Wednesday 31

Waxing Gibbous 91%

13:35

06:37

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

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)

70
73
81
91
99
90
77
63
61
59
87
95
97
98
99
98
98

Low Clouds (% Sky Obscured)

51
53
56
59
62
52
42
32
28
23
19
25
30
37
50
65
81

Medium Clouds (% Sky Obscured)

13
10
27
46
61
63
67
63
61
59
70
76
79
86
75
62
47

High Clouds (% Sky Obscured)

70
73
78
76
72
49
27
5
5
5
5
10
15
30
39
42
41

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 (%)

2
1
2
1
0
1
1
0
3
2
0
1
1
1
14
21
26

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

87
91
92
91
89
88
86
86
86
86
88
89
88
86
86
82
79

Pressure (mb)

1024
1024
1024
1023
1022
1022
1021
1020
1019
1018
1018
1017
1016
1016
1015
1015
1014

Ozone (du)

339
338
337
339
341
343
350
357
364
371
378
386
382
379
375
374
372

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

Generated: 25/12/25 19:50:05. Forecast: 25/12/25 to 31/12/25. Timezone: UTC+0.00