Clear Outside v1.0 - International Weather Forecasts For Astronomers

Saturday 27

First Quarter 49%

12:05

01:01

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

Sun - Rise: 08:17, Set: 16:56, Transit: 12:36. Moon - Rise: 12:05, Set: 01:01. Civil Dark: 17:30 - 07:42. Nautical Dark: 18:08 - 07:04. Astro Dark: 18:45 - 06:28

Total Clouds (% Sky Obscured)

78
69
66
41
30
25
20
14
0
0
3
0
3
4
4
27
36
68
57
39
17
9
11
10

Low Clouds (% Sky Obscured)

32
38
37
37
26
25
20
14
0
0
3
0
0
0
0
0
0
0
0
1
1
1
3
2

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
2
4
2
15
26
44
57
39
5
2
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 (%)

6
6
2
2
2
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)

8
7
7
5
4
4
3
3
3
3
2
2
2
2
2
3
2
2
1
3
4
3
2
1

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

91
89
89
83
77
73
70
69
69
73
76
77
77
77
78
78
80
81
83
83
83
81
84
83

Pressure (mb)

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

Ozone (du)

366
364
362
359
356
352
349
346
345
342
341
339
337
334
333
332
331
331
331
332
333
333
332
333

Sunday 28

Waxing Gibbous 61%

12:23

02:19

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

Sun - Rise: 08:17, Set: 16:56, Transit: 12:37. Moon - Rise: 12:23, Set: 02:19. Civil Dark: 17:31 - 07:43. Nautical Dark: 18:09 - 07:05. Astro Dark: 18:46 - 06:28

Total Clouds (% Sky Obscured)

8
8
8
6
6
3
2
2
2
1
2
1
2
2
13
25
25
33
35
44
48
51
50
47

Low Clouds (% Sky Obscured)

3
3
2
2
2
2
2
2
2
1
2
1
2
2
13
25
25
33
35
44
48
47
50
43

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)

1
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)

3
4
3
3
4
5
5
6
7
7
6
5
4
4
4
3
3
3
3
2
2
1
1
1

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

83
84
84
75
70
67
63
62
63
69
78
83
86
86
86
87
87
87
87
89
89
86
84
83

Pressure (mb)

1027
1027
1027
1027
1027
1026
1025
1025
1024
1024
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025

Ozone (du)

333
333
333
335
336
334
332
330
328
328
328
330
330
332
334
333
331
330
328
327
326
325
325
325

Monday 29

Waxing Gibbous 72%

12:44

03:40

07 OK
08 OK
09 OK
10 OK
11 Good
12 Good
13 Good
14 Good
15 Good
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 Good
06 Good

Sun - Rise: 08:17, Set: 16:57, Transit: 12:37. Moon - Rise: 12:44, Set: 03:40. Civil Dark: 17:32 - 07:43. Nautical Dark: 18:10 - 07:05. Astro Dark: 18:46 - 06:28

Total Clouds (% Sky Obscured)

46
41
39
26
0
0
0
0
0
0
0
0
0
0
3
3
3
3
2
0
0
0
0
1

Low Clouds (% Sky Obscured)

46
41
39
26
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
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)

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

81
80
77
69
63
59
56
54
58
63
68
69
71
71
73
75
77
80
81
83
83
84
84
83

Pressure (mb)

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

Ozone (du)

324
323
320
319
316
314
314
314
312
313
312
313
313
313
313
313
312
313
312
311
311
310
311
311

Tuesday 30

Waxing Gibbous 82%

13:10

05:05

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

Sun - Rise: 08:17, Set: 16:58, Transit: 12:38. Moon - Rise: 13:10, Set: 05:05. Civil Dark: 17:33 - 07:43. Nautical Dark: 18:11 - 07:05. Astro Dark: 18:47 - 06:29

Total Clouds (% Sky Obscured)

1
1
1
1
1
0
0
0
0
0
1
2
7
10
14
15
17
18
24
34
45
49
50
46

Low Clouds (% Sky Obscured)

1
1
1
1
1
0
0
0
0
0
1
2
6
9
13
15
17
18
24
34
44
48
50
46

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
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)

7
9
11
13
14
14
15
15
15
15
15
14
14
13
13
12
11
10
9
8
7
7
6
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

83
83
77
69
63
58
57
56
57
62
69
73
74
75
75
75
78
80
83
87
86
84
82
82

Pressure (mb)

1022
1022
1023
1023
1023
1022
1022
1022
1022
1022
1022
1023
1023
1023
1024
1024
1024
1024
1024
1024
1024
1024
1024
1024

Ozone (du)

312
313
313
313
313
311
308
307
304
298
291
287
287
284
285
288
288
287
289
292
297
297
301
303

Wednesday 31

Waxing Gibbous 91%

13:45

06:29

07 OK
08 OK
09 OK
10 OK
11 Good
12 Good
13 Good
14 Good
15 Good
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 OK

Sun - Rise: 08:17, Set: 16:59, Transit: 12:38. Moon - Rise: 13:45, Set: 06:29. Civil Dark: 17:33 - 07:43. Nautical Dark: 18:11 - 07:05. Astro Dark: 18:48 - 06:29

Total Clouds (% Sky Obscured)

35
34
30
23
6
1
0
0
0
1
3
4
2
3
4
5
7
9
12
16
20
27
31
44

Low Clouds (% Sky Obscured)

35
34
30
23
6
0
0
0
0
0
0
1
2
2
3
4
5
6
6
5
4
4
4
4

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
1
3
4
0
0
0
0
0
0
0
0
0
25
31
44

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
4
6
12
16
20
27
31
44

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

81
78
78
71
64
58
54
54
58
61
63
65
66
69
73
77
75
77
77
77
77
77
77
77

Pressure (mb)

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

Ozone (du)

306
307
309
309
312
317
324
332
336
337
336
336
336
336
336
336
339
343
346
345
343
342
340
338

Thursday 1

Waxing Gibbous 97%

14:32

No Set

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

Sun - Rise: 08:18, Set: 17:00, Transit: 12:39. Moon - Rise: 14:32, Set: No Set. Civil Dark: 17:34 - 07:43. Nautical Dark: 18:12 - 07:05. Astro Dark: 18:49 - 06:29

Total Clouds (% Sky Obscured)

38
31
27
33
34
38
36
38
40
32
28
29
36
46
54
58
61
65
68
68
72
76
80
83

Low Clouds (% Sky Obscured)

5
6
7
11
15
18
27
34
38
32
28
29
34
30
31
23
15
8
10
13
15
31
48
64

Medium Clouds (% Sky Obscured)

38
23
0
1
1
0
0
0
0
0
0
7
15
8
0
1
2
3
21
41
60
61
71
73

High Clouds (% Sky Obscured)

38
31
27
33
34
38
36
38
40
32
26
0
1
0
1
0
3
4
9
14
25
50
75
75

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
7
4

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
1
2
3
4
7
5
7
7
3
8
11
9
26
33
35

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

77
75
73
71
66
62
58
60
62
63
68
71
77
80
83
86
86
87
89
87
87
87
87
87

Pressure (mb)

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

Ozone (du)

336
333
330
327
325
322
320
322
325
328
328
329
330
331
333
334
335
337
338
338
338
339
364
390

Friday 2

Waxing Gibbous 100%

15:35

07:44

07 Bad
08 Bad
09 Bad
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

Sun - Rise: 08:17, Set: 17:01, Transit: 12:39. Moon - Rise: 15:35, Set: 07:44. Civil Dark: 17:35 - 07:43. Nautical Dark: 18:13 - 07:05. Astro Dark: 18:50 - 06:29

Total Clouds (% Sky Obscured)

81
79
76
82
87
91
88
86
83
85
83
79
85
90
96
90
85
82

Low Clouds (% Sky Obscured)

67
67
72
68
73
74
71
71
67
65
66
62
71
83
93
81
69
58

Medium Clouds (% Sky Obscured)

77
79
76
82
87
82
68
53
38
44
50
53
59
68
82
66
43
22

High Clouds (% Sky Obscured)

44
43
43
29
17
0
2
4
6
20
33
34
32
42
56
68
79
82

ISS Passover

Visibility (miles)

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

Fog (%)

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

Precipitation Type

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

Precipitation Probability (%)

54
62
64
73
74
66
77
75
63
61
55
38
38
36
26
33
32
15

Precipitation Amount (mm)

0
0.2
0.2
0.3
0.3
0
0.4
0.4
0.2
0.3
0.2
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

88
89
91
93
89
86
85
85
85
88
86
87
86
86
87
89
89
89

Pressure (mb)

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

Ozone (du)

416
408
401
394
386
377
369
365
361
358
353
348
343
331
319
306
303
300

Forecast for Plainpalais, Geneva, Switzerland (46.20,6.14)

Generated: 27/12/25 06:53:11. Forecast: 27/12/25 to 02/01/26. Timezone: UTC+1.00