Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 18

Waning Crescent 3%

08:52

15:29

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: 08:53, Set: 17:13, Transit: 13:02. Moon - Rise: 08:52, Set: 15:29. Civil Dark: 17:49 - 08:16. Nautical Dark: 18:29 - 07:36. Astro Dark: 19:07 - 06:58

Total Clouds (% Sky Obscured)

100
100
94
100
100
100
100
100
100
100
96
100
100
100
100
100
100
99
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

100
78
63
60
73
64
82
95
90
86
95
83
83
85
81
71
65
41
11
0
0
7
0
0

Medium Clouds (% Sky Obscured)

98
91
87
97
100
92
88
88
100
99
93
100
100
100
98
89
92
98
100
100
100
100
100
100

High Clouds (% Sky Obscured)

62
10
86
76
37
100
100
100
100
100
43
100
100
100
100
100
100
89
83
28
82
97
100
100

ISS Passover

Visibility (miles)

8
7
9
9
9
7
9
6
4
5
4
4
4
2
2
5
4
6
9
9
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3
2
0
0
0
0
0
0

Precipitation Type

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

Precipitation Probability (%)

57
65
88
34
72
79
68
95
95
95
95
95
95
95
95
75
53
27
5
1
0
0
0
0

Precipitation Amount (mm)

0.3
0.2
0.3
0
0.4
0.4
0.2
0.9
1.1
1
1
0.7
1
1.3
1.2
0.3
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

10
10
12
18
18
18
18
18
18
17
17
16
14
11
11
9
8
7
7
6
6
4
4
4

Chance of Frost

Temperature (°C)

11
11
12
13
13
12
12
12
12
12
12
12
12
12
12
12
12
11
9
9
8
8
7
7

Feels Like (°C)

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

Dew Point (°C)

9
9
9
10
10
10
10
10
11
11
11
11
11
11
11
11
10
10
8
7
6
6
5
4

Relative Humidity (%)

84
84
80
83
81
84
86
87
90
92
95
95
95
96
96
93
92
93
88
87
87
87
85
84

Pressure (mb)

1011
1010
1010
1009
1008
1008
1008
1008
1007
1007
1008
1008
1009
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019

Ozone (du)

293
292
291
288
290
290
292
295
297
296
293
295
297
300
303
304
302
310
326
334
343
348
349
350

Friday 19

Waning Crescent 1%

09:46

16:12

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

Sun - Rise: 08:53, Set: 17:13, Transit: 13:03. Moon - Rise: 09:46, Set: 16:12. Civil Dark: 17:50 - 08:17. Nautical Dark: 18:30 - 07:37. Astro Dark: 19:08 - 06:59

Total Clouds (% Sky Obscured)

100
100
91
85
100
84
81
86
92
24
23
37
46
58
61
63
67
69
68
100
92
96
91
91

Low Clouds (% Sky Obscured)

0
0
0
0
0
8
17
36
39
24
23
37
46
58
61
63
67
68
68
100
92
96
91
91

Medium Clouds (% Sky Obscured)

100
100
81
85
70
45
35
37
46
0
0
8
46
50
50
50
45
37
20
6
2
44
41
30

High Clouds (% Sky Obscured)

66
31
59
44
100
37
30
12
33
24
23
30
25
24
24
20
19
6
7
22
5
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
1
2
18

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

Chance of Frost

Temperature (°C)

7
8
9
9
10
10
10
8
7
6
6
5
4
4
3
3
3
3
3
3
3
3
3
3

Feels Like (°C)

5
6
6
7
7
7
7
6
6
4
3
3
2
1
0
1
1
-0
-0
1
-0
1
1
1

Dew Point (°C)

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

Relative Humidity (%)

81
78
72
67
66
68
73
79
82
82
83
83
85
86
86
88
88
88
89
89
91
91
91
91

Pressure (mb)

1020
1020
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1020
1020
1020
1019
1018
1017
1016
1016
1015
1015
1014
1014

Ozone (du)

347
345
347
347
344
335
322
317
315
313
311
308
306
304
303
304
303
304
302
299
297
296
297
297

Saturday 20

New Moon 0%

No Rise

17:07

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: 08:54, Set: 17:14, Transit: 13:03. Moon - Rise: No Rise, Set: 17:07. Civil Dark: 17:50 - 08:17. Nautical Dark: 18:30 - 07:37. Astro Dark: 19:08 - 06:59

Total Clouds (% Sky Obscured)

90
91
93
92
87
100
96
100
99
100
100
100
90
85
89
88
98
98
99
98
96
97
99
100

Low Clouds (% Sky Obscured)

90
91
93
86
67
43
40
48
42
52
60
57
64
72
77
67
93
76
83
81
90
75
72
73

Medium Clouds (% Sky Obscured)

32
41
44
34
33
43
40
73
68
75
61
68
52
51
54
58
62
56
94
86
85
90
96
100

High Clouds (% Sky Obscured)

0
0
0
0
15
100
93
100
99
100
100
72
4
29
37
47
62
90
75
73
55
70
86
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
4
4
9
9
9
9
9

Fog (%)

76
57
3
1
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
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
2
5
12
6
6
3
8
44
71
53
19
17
9
10
11

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.4
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

89
85
81
75
74
77
81
87
90
94
96
96
94
94
94
94
94
94
94
91
91
90
90
88

Pressure (mb)

1013
1013
1012
1010
1009
1008
1008
1007
1006
1006
1006
1005
1005
1005
1004
1003
1003
1003
1002
1002
1002
1002
1002
1002

Ozone (du)

298
303
308
309
307
306
305
305
308
312
313
315
321
326
326
326
325
330
329
329
331
336
343
361

Sunday 21

Waxing Crescent 2%

10:29

18:11

10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 OK
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: 08:54, Set: 17:14, Transit: 13:04. Moon - Rise: 10:29, Set: 18:11. Civil Dark: 17:51 - 08:18. Nautical Dark: 18:31 - 07:38. Astro Dark: 19:09 - 07:00

Total Clouds (% Sky Obscured)

99
98
97
95
98
58
85
53
45
91
44
44
48
81
43
57
99
100
98
95
76
60
62
47

Low Clouds (% Sky Obscured)

65
58
51
56
63
58
73
53
45
65
44
44
48
62
43
57
75
90
84
78
71
60
62
47

Medium Clouds (% Sky Obscured)

95
89
84
33
84
34
63
30
28
30
33
38
38
38
33
35
92
90
89
85
55
28
25
0

High Clouds (% Sky Obscured)

96
92
88
88
95
58
61
53
45
91
44
44
48
81
43
57
81
76
56
46
17
6
4
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
Very Light Rain
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

10
9
13
17
15
10
11
4
0
14
18
15
29
41
53
48
41
30
35
27
6
6
5
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

12
12
13
13
13
11
10
9
8
8
8
8
8
9
9
10
10
10
11
9
8
7
8
8

Chance of Frost

Temperature (°C)

7
8
9
10
10
10
10
9
9
8
7
7
6
6
6
6
6
6
6
6
5
4
4
4

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

85
82
80
77
72
72
80
82
87
91
91
91
93
93
93
94
94
94
96
94
94
94
94
94

Pressure (mb)

1002
1002
1002
1001
1001
1001
1001
1001
1001
1002
1002
1002
1002
1002
1002
1002
1002
1002
1003
1003
1003
1004
1005
1005

Ozone (du)

382
408
415
414
420
427
427
427
425
423
426
426
430
432
436
440
441
439
440
443
446
447
446
443

Monday 22

Waxing Crescent 6%

11:02

19:22

10 OK
11 OK
12 Bad
13 OK
14 Good
15 Good
16 OK
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: 08:55, Set: 17:15, Transit: 13:04. Moon - Rise: 11:02, Set: 19:22. Civil Dark: 17:51 - 08:18. Nautical Dark: 18:31 - 07:38. Astro Dark: 19:09 - 07:00

Total Clouds (% Sky Obscured)

40
33
57
25
13
2
32
63
91
90
90
85
74
68
63
65
68
62
60
58
57
56
57
56

Low Clouds (% Sky Obscured)

40
33
44
25
12
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

1
2
20
4
2
2
22
51
82
54
29
0
6
11
14
16
18
18
20
22
23
23
21
16

High Clouds (% Sky Obscured)

0
0
0
1
1
1
19
41
57
70
80
85
74
68
59
65
68
62
60
56
47
44
42
39

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)

9
10
11
11
10
10
10
10
9
8
8
8
8
7
7
6
5
5
5
5
4
5
5
5

Chance of Frost

Temperature (°C)

4
5
6
7
8
8
8
6
6
5
4
4
4
4
3
3
3
2
2
2
2
2
2
2

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

94
90
85
81
77
75
81
88
90
93
91
93
93
93
93
94
93
94
94
94
94
94
94
94

Pressure (mb)

1006
1007
1007
1007
1007
1007
1007
1008
1008
1009
1010
1010
1011
1011
1011
1012
1012
1012
1012
1012
1012
1011
1012
1012

Ozone (du)

443
443
440
441
439
439
437
438
437
437
436
432
430
426
422
419
417
415
414
405
395
386
383
381

Tuesday 23

Waxing Crescent 12%

11:27

20:35

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: 08:55, Set: 17:15, Transit: 13:05. Moon - Rise: 11:27, Set: 20:35. Civil Dark: 17:52 - 08:19. Nautical Dark: 18:32 - 07:39. Astro Dark: 19:10 - 07:01

Total Clouds (% Sky Obscured)

63
69
76
84
92
100
98
96
94
95
96
98
95
92
88
87
84
83
85
87
89
89
88
87

Low Clouds (% Sky Obscured)

21
43
61
67
71
80
84
90
91
93
96
98
95
91
88
86
84
82
84
86
88
87
87
87

Medium Clouds (% Sky Obscured)

21
27
32
34
23
15
15
15
20
30
55
75
85
90
88
85
84
80
75
70
65
64
67
71

High Clouds (% Sky Obscured)

28
17
9
7
8
14
14
19
25
20
15
15
15
15
15
10
10
15
20
25
25
40
45
50

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
3
4
1
8
11
12
10
7
1
5
4
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)

5
6
8
9
9
10
10
10
10
10
10
11
11
11
12
12
13
13
13
13
14
14
14
14

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

2
2
3
3
3
3
3
3
3
3
2
2
2
2
2
2
2
2
2
2
2
2
2
2

Relative Humidity (%)

94
89
85
81
79
79
79
79
80
83
82
82
80
82
83
83
82
82
82
83
82
82
82
82

Pressure (mb)

1012
1012
1012
1012
1011
1011
1011
1011
1011
1012
1012
1012
1012
1012
1012
1012
1012
1012
1013
1013
1013
1013
1013
1014

Ozone (du)

378
379
379
380
380
380
381
383
386
388
391
393
396
394
392
390
388
387
386
387
388
388
388
388

Wednesday 24

Waxing Crescent 19%

11:48

21:50

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

Sun - Rise: 08:55, Set: 17:16, Transit: 13:05. Moon - Rise: 11:48, Set: 21:50. Civil Dark: 17:52 - 08:19. Nautical Dark: 18:32 - 07:39. Astro Dark: 19:10 - 07:01

Total Clouds (% Sky Obscured)

81
73
67
63
57
55
58
63
66
73
82
88
81
86
91
91
92
95
97
97
100

Low Clouds (% Sky Obscured)

81
73
67
63
57
55
58
63
65
71
77
83
76
68
64
66
70
71
79
87
99

Medium Clouds (% Sky Obscured)

75
73
67
63
57
55
43
25
11
11
12
14
10
9
5
4
4
4
12
20
29

High Clouds (% Sky Obscured)

50
50
40
39
38
33
29
39
45
52
47
41
37
31
29
35
42
47
37
30
31

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
8
7
5
7
8
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

Precipitation Type

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
1
1
0
5
7
7
7
6
2
6
6
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

Wind Speed/Direction (mph)

14
14
14
15
14
14
14
13
13
12
11
11
10
9
9
8
8
8
8
8
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

82
79
76
75
74
74
72
76
79
82
82
80
80
83
88
91
91
89
88
84
83

Pressure (mb)

1014
1014
1014
1014
1014
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1012
1013
1013
1013
1013
1012

Ozone (du)

388
390
392
393
394
394
394
395
395
395
395
395
395
393
392
390
388
386
384
384
385

Forecast for Ercé-près-Liffré, Ille-et-Vilaine, France (48.26,-1.51)

Generated: 18/12/25 10:18:06. Forecast: 18/12/25 to 24/12/25. Timezone: UTC+1.00