Clear Outside v1.0 - International Weather Forecasts For Astronomers

Saturday 27

First Quarter 50%

11:56

00:46

14 Good
15 Good
16 OK
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
13 Bad

Sun - Rise: 08:15, Set: 16:15, Transit: 12:16. Moon - Rise: 11:56, Set: 00:46. Civil Dark: 16:54 - 07:36. Nautical Dark: 17:36 - 06:54. Astro Dark: 18:16 - 06:14

Total Clouds (% Sky Obscured)

7
8
22
32
66
67
90
88
94
94
95
89
86
75
96
86
93
92
100
100
95
86
93
97

Low Clouds (% Sky Obscured)

7
8
22
32
66
67
90
88
94
94
95
89
86
74
96
86
87
90
88
69
81
67
65
51

Medium Clouds (% Sky Obscured)

7
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
8
8
8
8
14
25
41
79
100
100
94
79
87
94

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
1
4
4
2
13
7
6
5
3
4
3
5
6
1
3
1
2
1
1
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)

19
17
16
16
17
18
17
15
14
13
12
12
11
11
10
10
10
11
10
10
12
12
13
12

Chance of Frost

Temperature (°C)

7
7
6
5
5
6
6
6
6
6
6
6
6
6
5
5
5
5
5
4
5
5
6
6

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

76
81
85
93
86
79
76
76
78
81
82
85
83
82
82
85
83
88
94
94
89
86
83
82

Pressure (mb)

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

Ozone (du)

340
342
343
341
340
336
337
336
336
334
329
324
323
322
322
323
325
327
328
331
334
337
338
337

Sunday 28

Waxing Gibbous 61%

12:11

02:09

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
13 Bad

Sun - Rise: 08:15, Set: 16:16, Transit: 12:16. Moon - Rise: 12:11, Set: 02:09. Civil Dark: 16:55 - 07:36. Nautical Dark: 17:37 - 06:54. Astro Dark: 18:17 - 06:14

Total Clouds (% Sky Obscured)

99
57
69
67
63
65
68
78
78
85
70
59
75
81
72
77
81
80
74
66
61
69
53
45

Low Clouds (% Sky Obscured)

53
47
65
65
46
54
68
68
63
71
67
59
69
75
61
65
68
64
55
47
44
58
38
26

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)

96
12
20
29
36
43
42
43
43
43
25
7
17
7
6
3
4
3
2
2
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 (%)

1
2
0
0
0
0
0
0
0
0
1
1
2
1
0
0
1
1
0
1
1
2
1
1

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

81
82
82
86
93
91
94
93
93
94
94
93
91
82
76
73
74
72
72
70
72
73
71
71

Pressure (mb)

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

Ozone (du)

335
334
331
329
327
324
320
316
311
309
308
307
306
306
306
308
307
307
305
302
301
301
301
300

Monday 29

Waxing Gibbous 72%

12:32

03:37

14 OK
15 OK
16 OK
17 OK
18 Bad
19 OK
20 Bad
21 OK
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

Sun - Rise: 08:15, Set: 16:17, Transit: 12:16. Moon - Rise: 12:32, Set: 03:37. Civil Dark: 16:56 - 07:36. Nautical Dark: 17:38 - 06:54. Astro Dark: 18:18 - 06:14

Total Clouds (% Sky Obscured)

34
20
31
30
54
43
47
43
58
85
84
84
84
88
89
96
92
84
89
88
78
69
71
72

Low Clouds (% Sky Obscured)

26
10
18
5
10
10
10
20
45
82
79
67
74
72
83
95
89
76
83
82
77
68
69
68

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
19
8
3
6
1
0
16
40
34
39
25
19
22
16
17
25
7
6
12
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 (%)

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

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

Chance of Frost

Temperature (°C)

5
5
5
4
4
4
4
4
4
4
4
4
4
5
5
4
5
4
4
4
5
5
5
5

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

72
70
69
69
69
69
71
71
72
75
71
67
69
67
68
71
65
66
63
62
62
60
58
58

Pressure (mb)

1026
1026
1026
1027
1027
1028
1028
1029
1029
1029
1029
1030
1030
1030
1030
1030
1031
1032
1032
1033
1033
1033
1033
1033

Ozone (du)

301
301
298
296
295
291
289
288
285
281
282
281
280
282
282
284
286
288
288
289
290
292
292
293

Tuesday 30

Waxing Gibbous 82%

13:01

05:08

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

Sun - Rise: 08:15, Set: 16:18, Transit: 12:17. Moon - Rise: 13:01, Set: 05:08. Civil Dark: 16:57 - 07:36. Nautical Dark: 17:39 - 06:54. Astro Dark: 18:19 - 06:14

Total Clouds (% Sky Obscured)

72
50
38
41
24
27
24
7
7
6
8
10
12
15
18
21
19
18
14
11
6
2
2
1

Low Clouds (% Sky Obscured)

66
24
14
0
0
0
0
0
0
0
4
10
12
15
18
21
19
18
14
11
6
2
2
1

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)

21
26
26
40
24
24
18
7
7
6
6
5
4
3
2
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 (%)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

58
62
72
82
85
88
89
89
89
91
91
91
92
92
92
92
92
91
91
89
80
73
69
66

Pressure (mb)

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

Ozone (du)

295
296
296
297
300
303
307
309
307
306
307
310
313
314
313
313
316
320
322
321
321
321
322
319

Wednesday 31

Waxing Gibbous 91%

13:45

06:37

14 Good
15 Good
16 Good
17 Good
18 OK
19 OK
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

Sun - Rise: 08:15, Set: 16:19, Transit: 12:17. Moon - Rise: 13:45, Set: 06:37. Civil Dark: 16:57 - 07:36. Nautical Dark: 17:40 - 06:54. Astro Dark: 18:19 - 06:15

Total Clouds (% Sky Obscured)

1
0
0
0
10
19
31
44
55
65
68
69
72
80
86
92
73
79
85
91
97
99
93
87

Low Clouds (% Sky Obscured)

1
0
0
0
9
18
31
44
55
65
65
64
67
76
85
92
73
77
79
86
91
98
93
87

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
1
4
5
8
11
13
29
46
54
47
58
71
54
29
6
9
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
1
2
1
4
5
1
5
7
6
6
8

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
4
4
4
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
4
5
7
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

68
75
85
88
89
89
91
89
84
85
84
84
88
89
91
91
89
91
91
91
85
79
74
75

Pressure (mb)

1030
1030
1030
1030
1029
1029
1029
1029
1028
1028
1027
1026
1026
1025
1025
1024
1023
1024
1023
1023
1022
1022
1021
1020

Ozone (du)

320
321
324
325
323
322
323
325
324
321
319
317
319
321
320
320
318
318
318
318
319
321
322
321

Thursday 1

Waxing Gibbous 97%

No Rise

07:54

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 OK
06 Bad
07 Bad
08 OK
09 OK
10 OK
11 Good
12 Good
13 OK

Sun - Rise: 08:15, Set: 16:20, Transit: 12:18. Moon - Rise: No Rise, Set: 07:54. Civil Dark: 16:58 - 07:36. Nautical Dark: 17:40 - 06:54. Astro Dark: 18:20 - 06:15

Total Clouds (% Sky Obscured)

82
88
94
100
94
87
80
86
91
95
92
89
86
67
50
36
35
35
36
26
16
7
16
22

Low Clouds (% Sky Obscured)

81
77
74
71
75
79
80
79
75
71
65
53
41
37
40
35
35
35
36
26
16
7
16
22

Medium Clouds (% Sky Obscured)

0
0
0
0
3
8
14
21
28
42
30
16
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

4
23
42
71
86
87
80
79
62
46
31
15
0
0
2
1
2
2
2
1
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 (%)

10
14
14
14
17
20
22
23
23
20
22
18
8
9
8
3
7
6
1
4
4
0
1
1

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
10
10
9
9
9
9
9
8
8
9
8
7
7
7
7
7
6
5
5
6
7
8
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

78
79
79
80
82
85
85
88
88
89
89
89
91
89
89
91
89
91
91
93
83
76
69
70

Pressure (mb)

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

Ozone (du)

320
319
321
322
323
323
323
322
319
316
313
311
308
306
302
299
295
293
290
288
288
287
287
287

Friday 2

Waxing Gibbous 100%

14:47

08:51

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

Sun - Rise: 08:15, Set: 16:21, Transit: 12:18. Moon - Rise: 14:47, Set: 08:51. Civil Dark: 16:59 - 07:36. Nautical Dark: 17:41 - 06:54. Astro Dark: 18:21 - 06:14

Total Clouds (% Sky Obscured)

33
32
19
4
19
33
47
44
40
40
39
31
30
26
25
20
17
9
7
7
7
8

Low Clouds (% Sky Obscured)

33
32
17
0
12
25
40
43
40
40
39
31
30
26
25
20
17
9
7
7
7
8

Medium Clouds (% Sky Obscured)

0
0
1
1
2
2
3
6
6
6
4
2
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
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

Fog (%)

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

Precipitation Probability (%)

0
0
0
0
0
0
0
1
2
0
2
2
0
1
1
0
1
1
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

Wind Speed/Direction (mph)

8
9
7
6
5
5
4
4
4
4
4
4
3
3
3
4
4
4
4
3
4
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

72
73
76
79
81
81
81
83
81
81
81
80
80
78
83
84
86
88
88
88
83
79

Pressure (mb)

1021
1022
1022
1022
1023
1023
1023
1023
1023
1024
1024
1024
1024
1024
1024
1024
1024
1024
1025
1025
1025
1025

Ozone (du)

286
285
287
288
290
290
289
289
287
285
283
286
290
294
301
308
315
316
318
320
319
319

Forecast for Exeter, Devon, United Kingdom (50.72,-3.53)

Generated: 27/12/25 14:39:08. Forecast: 27/12/25 to 02/01/26. Timezone: UTC+0.00