Clear Outside v1.0 - International Weather Forecasts For Astronomers

Saturday 27

First Quarter 50%

11:41

00:46

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
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad

Sun - Rise: 08:17, Set: 16:12, Transit: 12:14. Moon - Rise: 11:41, Set: 00:46. Civil Dark: 16:52 - 07:37. Nautical Dark: 17:34 - 06:54. Astro Dark: 18:15 - 06:14

Total Clouds (% Sky Obscured)

45
57
62
74
76
83
78
76
88
83
64
91
89
80
95
81
92
91
94
93
97
99
100
100

Low Clouds (% Sky Obscured)

45
57
62
66
72
83
78
76
88
83
64
91
89
80
95
81
92
91
90
90
92
81
74
61

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
0
0
0
0
0
0
0
0
1
6
6
6
11
41
68
75
91
100
100

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
10
2
10
2
0
1
2
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)

18
19
20
19
17
17
17
18
20
18
17
15
14
13
13
12
13
12
12
12
12
11
11
12

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

79
77
76
78
80
83
90
94
86
86
83
85
86
88
90
88
85
86
83
85
96
98
98
94

Pressure (mb)

1035
1035
1034
1033
1033
1033
1033
1033
1033
1033
1033
1034
1034
1034
1034
1034
1033
1033
1033
1033
1033
1033
1033
1033

Ozone (du)

329
328
325
324
322
323
328
327
326
328
330
328
328
327
327
325
322
320
319
318
320
320
319
321

Sunday 28

Waxing Gibbous 61%

11:54

02:10

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
05 Bad
06 Bad
07 OK
08 Bad
09 Bad

Sun - Rise: 08:17, Set: 16:13, Transit: 12:15. Moon - Rise: 11:54, Set: 02:10. Civil Dark: 16:52 - 07:37. Nautical Dark: 17:35 - 06:55. Astro Dark: 18:15 - 06:14

Total Clouds (% Sky Obscured)

91
79
87
86
75
68
64
81
83
92
94
95
87
97
85
78
89
78
56
47
44
43
49
44

Low Clouds (% Sky Obscured)

53
64
64
72
67
60
51
64
58
81
87
88
74
94
78
64
84
73
56
47
44
43
49
44

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)

76
39
48
21
3
3
9
28
48
51
44
44
38
35
25
15
6
3
1
1
1
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
13
14
14
13
13
11
10
9
10
9
9
10
10
10
11
10
11
9
9
8
8
8
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

91
89
86
83
82
82
82
82
83
80
80
80
77
76
74
74
74
71
78
88
93
94
94
94

Pressure (mb)

1033
1033
1033
1032
1031
1031
1030
1030
1030
1030
1030
1029
1029
1029
1029
1028
1028
1028
1028
1027
1027
1028
1028
1028

Ozone (du)

324
325
327
328
329
328
327
325
326
324
320
316
313
312
308
308
309
308
307
305
306
305
304
303

Monday 29

Waxing Gibbous 72%

12:09

03:38

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

Sun - Rise: 08:17, Set: 16:14, Transit: 12:15. Moon - Rise: 12:09, Set: 03:38. Civil Dark: 16:53 - 07:37. Nautical Dark: 17:36 - 06:55. Astro Dark: 18:16 - 06:14

Total Clouds (% Sky Obscured)

40
45
52
50
49
60
53
44
48
49
75
78
74
79
53
69
84
70
67
71
73
73
72
70

Low Clouds (% Sky Obscured)

40
45
51
45
40
46
36
34
48
49
75
72
68
76
53
67
79
56
53
49
57
55
51
54

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
0
0
14
20
9
1
3
3
1
2
4
14
34
36
44
38
31
42
34

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
11
1
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)

8
9
12
13
13
14
12
10
9
10
9
9
11
10
9
9
9
10
11
12
10
9
9
10

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

91
86
85
85
83
82
85
89
91
91
91
93
80
77
76
73
71
72
86
83
88
89
81
67

Pressure (mb)

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

Ozone (du)

300
300
299
300
299
299
298
296
291
288
285
284
280
278
279
279
280
284
283
284
285
286
287
289

Tuesday 30

Waxing Gibbous 82%

12:29

05:10

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

Sun - Rise: 08:17, Set: 16:15, Transit: 12:16. Moon - Rise: 12:29, Set: 05:10. Civil Dark: 16:54 - 07:37. Nautical Dark: 17:37 - 06:55. Astro Dark: 18:17 - 06:14

Total Clouds (% Sky Obscured)

69
71
73
70
66
59
41
23
32
36
39
15
15
20
12
10
7
7
0
0
4
9
18
14

Low Clouds (% Sky Obscured)

62
67
60
56
52
38
21
1
4
8
11
10
10
11
7
5
1
1
0
0
4
9
18
14

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)

25
21
16
20
24
30
20
15
14
14
13
5
7
10
6
4
2
1
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
13
12
12
11
9
6
5
5
5
5
4
4
4
4
4
3
3
3
3
3
3
3

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

63
63
62
61
61
62
63
73
80
86
89
89
89
91
91
91
91
91
89
89
87
87
86
81

Pressure (mb)

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

Ozone (du)

292
293
294
294
297
301
304
308
309
310
309
309
310
313
312
309
308
309
311
315
315
318
317
315

Wednesday 31

Waxing Gibbous 91%

12:58

06:39

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

Sun - Rise: 08:17, Set: 16:16, Transit: 12:16. Moon - Rise: 12:58, Set: 06:39. Civil Dark: 16:55 - 07:37. Nautical Dark: 17:38 - 06:55. Astro Dark: 18:18 - 06:14

Total Clouds (% Sky Obscured)

8
2
2
2
2
5
9
14
25
36
49
43
37
30
40
52
66
77
89
100
96
91
88
87

Low Clouds (% Sky Obscured)

8
0
0
0
0
5
9
14
24
34
44
40
36
28
40
52
66
77
89
100
91
82
74
75

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
0
0
0
1
3
4
3
2
3
8
18
31
52
69
86
70
50
24
16

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
4
4
6
9
10
11
11
13
11

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

76
69
66
67
72
79
88
89
93
93
93
94
93
96
94
94
93
94
91
91
88
88
88
88

Pressure (mb)

1033
1032
1032
1032
1031
1031
1031
1030
1030
1030
1030
1030
1029
1028
1028
1027
1027
1026
1026
1025
1024
1024
1023
1023

Ozone (du)

315
314
315
317
320
324
325
326
323
321
320
320
318
320
320
321
322
322
321
319
318
318
318
318

Thursday 1

Waxing Gibbous 97%

13:41

07:56

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 OK
02 OK
03 OK
04 OK
05 Good
06 Good
07 Good
08 Good
09 Good

Sun - Rise: 08:16, Set: 16:17, Transit: 12:17. Moon - Rise: 13:41, Set: 07:56. Civil Dark: 16:56 - 07:37. Nautical Dark: 17:38 - 06:55. Astro Dark: 18:19 - 06:14

Total Clouds (% Sky Obscured)

86
85
77
70
57
68
83
100
97
88
77
67
57
52
43
35
26
23
19
15
11
6
2
7

Low Clouds (% Sky Obscured)

77
79
67
55
43
57
67
81
72
61
50
47
45
43
36
33
26
23
18
14
9
4
0
5

Medium Clouds (% Sky Obscured)

0
0
0
0
0
13
23
35
30
22
21
17
13
15
11
7
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

10
4
8
12
16
41
65
90
90
88
77
64
32
3
1
1
1
2
2
3
5
3
2
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 (%)

9
8
11
11
11
12
13
16
17
18
20
22
24
25
23
17
0
1
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)

5
6
7
9
10
11
12
13
13
12
11
10
10
10
11
10
9
8
8
8
8
7
6
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

83
80
76
78
76
76
78
79
82
80
79
78
79
80
82
83
83
85
85
83
82
83
82
82

Pressure (mb)

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

Ozone (du)

319
320
320
320
320
320
321
321
322
325
327
329
329
329
329
325
322
319
314
308
302
299
296
293

Friday 2

Waxing Gibbous 100%

14:43

08:53

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

Sun - Rise: 08:16, Set: 16:18, Transit: 12:17. Moon - Rise: 14:43, Set: 08:53. Civil Dark: 16:57 - 07:37. Nautical Dark: 17:39 - 06:55. Astro Dark: 18:20 - 06:14

Total Clouds (% Sky Obscured)

12
17
29
41
53
54
58
58
47
40
31
44
52
62
65
67
70
74
77
79

Low Clouds (% Sky Obscured)

10
15
24
33
42
26
13
0
8
14
23
35
45
59
62
60
57
54
49
46

Medium Clouds (% Sky Obscured)

0
0
1
2
3
10
14
22
16
10
4
12
19
28
20
10
0
5
8
12

High Clouds (% Sky Obscured)

1
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

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
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
1
1
0
1
1
0
4
6
5
6
7
1

Precipitation Amount (mm)

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
8
10
9
9
8
7
5
4
5
5
5
5
4
4
4
4
4
4
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

0
0
0
0
1
1
1
-0
-1
0
0
1
1
0
1
1
1
1
1
1

Relative Humidity (%)

76
71
65
67
71
75
77
80
84
86
86
88
89
88
89
88
83
82
82
82

Pressure (mb)

1023
1023
1023
1023
1023
1023
1024
1024
1024
1024
1024
1024
1024
1024
1024
1024
1024
1024
1024
1023

Ozone (du)

290
287
284
285
285
286
286
285
284
286
288
290
292
294
297
299
302
305
305
305

Forecast for Watchet, Somerset, United Kingdom (51.18,-3.33)

Generated: 27/12/25 10:15:48. Forecast: 27/12/25 to 02/01/26. Timezone: UTC+0.00