Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 22

Waxing Crescent 12%

10:49

18:59

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: 08:16, Set: 16:53, Transit: 12:34. Moon - Rise: 10:49, Set: 18:59. Civil Dark: 17:28 - 07:41. Nautical Dark: 18:06 - 07:03. Astro Dark: 18:42 - 06:26

Total Clouds (% Sky Obscured)

86
89
92
93
100
100
100
95
100
100
100
100
100
99
100
100
100
93
96
100
100
100
100
100

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
6
17
0
0
0
0
0
0
9

Medium Clouds (% Sky Obscured)

59
89
92
87
89
80
86
87
93
62
75
98
72
75
91
90
91
89
82
99
100
100
99
97

High Clouds (% Sky Obscured)

86
89
46
31
32
71
100
68
98
100
97
67
80
56
100
51
35
53
81
91
96
100
100
90

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
1
1
1
0
1
1
1
1
1
1
1
1

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
1
1
0
1
1
1
1
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

76
78
78
78
80
80
80
80
79
80
80
82
82
83
82
79
76
74
73
71
73
76
78
79

Pressure (mb)

1008
1008
1009
1009
1009
1009
1009
1010
1010
1009
1009
1009
1010
1010
1010
1010
1010
1010
1010
1010
1010
1010
1011
1011

Ozone (du)

392
393
395
397
397
398
397
395
391
390
389
389
391
390
388
388
391
390
389
384
380
379
379
380

Tuesday 23

Waxing Crescent 19%

11:11

20:10

19 Bad
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
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad

Sun - Rise: 08:16, Set: 16:54, Transit: 12:35. Moon - Rise: 11:11, Set: 20:10. Civil Dark: 17:28 - 07:41. Nautical Dark: 18:06 - 07:03. Astro Dark: 18:43 - 06:27

Total Clouds (% Sky Obscured)

93
63
40
59
82
99
100
100
100
100
100
98
93
90
88
79
80
84
83
78
79
97
98
100

Low Clouds (% Sky Obscured)

18
31
40
58
79
99
100
100
100
100
100
98
92
87
85
75
76
82
79
78
77
95
97
97

Medium Clouds (% Sky Obscured)

69
42
1
17
9
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
9
60
74

High Clouds (% Sky Obscured)

63
40
4
15
3
4
14
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
3
0
0
2
9
8
8
8
9
9
9
9
9
9
9
3

Fog (%)

0
3
6
7
6
4
9
9
16
36
48
50
37
14
27
16
0
8
9
2
0
1
1
1

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
Very Light Rain

Precipitation Probability (%)

0
0
0
0
0
0
0
0
2
11
0
0
0
0
0
3
1
14
6
6
13
23
33
59

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
0.3

Wind Speed/Direction (mph)

6
7
8
9
9
10
11
12
13
15
16
17
18
19
20
21
22
23
24
24
25
24
23
21

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

80
80
83
86
86
86
88
91
93
96
96
94
93
89
88
86
85
82
82
79
79
80
83
88

Pressure (mb)

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

Ozone (du)

382
385
386
385
380
377
378
377
374
377
380
382
383
383
388
394
396
402
409
414
414
411
407
398

Wednesday 24

Waxing Crescent 28%

11:30

21:22

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 OK
15 OK
16 OK
17 Good
18 Good

Sun - Rise: 08:16, Set: 16:54, Transit: 12:35. Moon - Rise: 11:30, Set: 21:22. Civil Dark: 17:29 - 07:42. Nautical Dark: 18:07 - 07:04. Astro Dark: 18:44 - 06:27

Total Clouds (% Sky Obscured)

100
100
100
92
89
85
85
94
100
100
99
99
98
99
94
94
87
75
56
38
28
20
11
2

Low Clouds (% Sky Obscured)

87
90
78
77
79
82
73
76
82
89
87
83
83
83
84
87
85
72
55
38
28
19
10
2

Medium Clouds (% Sky Obscured)

100
100
96
78
72
55
69
84
89
65
63
93
94
96
84
67
16
1
0
0
0
0
0
0

High Clouds (% Sky Obscured)

1
2
1
5
15
15
15
1
96
98
5
5
5
5
3
0
0
1
0
0
0
0
0
0

ISS Passover

Visibility (miles)

0
0
2
2
2
3
5
7
7
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

1
0
0
0
7
18
34
39
15
16
17
16
13
13
13
13
13
13
13
13
13
13
13
13

Precipitation Type

Light Rain
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 (%)

66
42
26
16
15
5
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0.4
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
15
15
13
12
11
10
10
9
9
9
9
9
9
9
8
8
7
6
6
6
6
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

94
96
91
91
91
91
89
91
89
91
89
89
89
89
89
89
86
81
79
77
77
82
84
86

Pressure (mb)

1011
1011
1012
1012
1013
1014
1014
1015
1016
1016
1017
1017
1018
1019
1020
1020
1021
1021
1020
1020
1020
1020
1021
1021

Ozone (du)

394
393
391
394
393
392
391
391
392
392
389
387
383
381
380
379
379
380
380
381
380
381
382
382

Thursday 25

Waxing Crescent 38%

11:48

22:34

19 OK
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 Good
16 Good
17 Good
18 Good

Sun - Rise: 08:17, Set: 16:55, Transit: 12:36. Moon - Rise: 11:48, Set: 22:34. Civil Dark: 17:30 - 07:42. Nautical Dark: 18:08 - 07:04. Astro Dark: 18:44 - 06:27

Total Clouds (% Sky Obscured)

18
39
58
63
62
62
69
75
89
90
69
64
57
57
79
86
83
81
74
59
18
8
2
3

Low Clouds (% Sky Obscured)

16
37
55
61
60
59
66
65
61
57
56
58
54
54
59
50
40
32
26
19
14
8
2
2

Medium Clouds (% Sky Obscured)

0
0
0
1
0
0
0
0
4
25
3
0
0
0
3
15
20
25
34
18
3
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
1
5
0
0
0
0
0
3
5
5
10
5
7
1
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 (%)

13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13

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)

5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
6
6
6
6
6
6
6
6
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

88
88
88
88
91
91
91
91
89
91
91
91
91
91
89
84
82
77
76
75
76
82
83
84

Pressure (mb)

1022
1022
1023
1023
1023
1024
1024
1024
1024
1024
1024
1024
1024
1024
1025
1025
1025
1025
1024
1024
1025
1025
1025
1026

Ozone (du)

383
384
382
379
378
379
381
382
384
385
385
384
383
384
384
385
386
386
385
385
382
377
376
375

Friday 26

Waxing Crescent 49%

12:05

23:47

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

Sun - Rise: 08:17, Set: 16:56, Transit: 12:36. Moon - Rise: 12:05, Set: 23:47. Civil Dark: 17:30 - 07:42. Nautical Dark: 18:08 - 07:04. Astro Dark: 18:45 - 06:28

Total Clouds (% Sky Obscured)

3
1
1
1
5
6
7
10
9
14
20
21
8
7
7
8
10
10
9
11
11
9
5
1

Low Clouds (% Sky Obscured)

2
1
1
1
5
6
6
10
8
14
20
21
8
7
7
8
9
10
9
9
9
6
4
0

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 (%)

13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13

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
1
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
4
4
4
3
3
3
3
3
3
4
4
4
4
4
4
4
4
4
4
4
4
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

84
84
86
87
89
89
89
91
89
89
89
89
89
87
86
84
79
75
70
71
73
74
77
80

Pressure (mb)

1026
1027
1027
1028
1028
1028
1029
1029
1029
1029
1029
1029
1029
1029
1029
1030
1029
1029
1028
1028
1028
1028
1028
1028

Ozone (du)

378
379
374
371
370
371
371
370
368
367
364
362
359
356
354
351
348
345
343
340
337
334
333
332

Saturday 27

First Quarter 46%

12:23

01:01

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

Sun - Rise: 08:17, Set: 16:56, Transit: 12:37. Moon - Rise: 12:23, Set: 01:01. Civil Dark: 17:31 - 07:43. Nautical Dark: 18:09 - 07:05. Astro Dark: 18:46 - 06:28

Total Clouds (% Sky Obscured)

6
11
17
16
14
13
11
9
7
13
16
19
22
29
38
42
47
51
51
56
56
46
36
25

Low Clouds (% Sky Obscured)

4
9
13
14
13
11
9
7
5
5
5
5
8
9
11
16
21
26
23
20
17
11
7
2

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
8
14
21
13
5
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
13
16
19
22
29
38
42
47
51
51
56
56
46
22
21

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 (%)

13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13

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
1
1
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
4
4
4
4
3
3
3
3
3
3
3
5
8
10
12
15
17
19
21
23
25
27

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

83
84
86
87
86
86
87
86
87
87
87
86
84
83
80
76
77
76
77
74
73
73
73
74

Pressure (mb)

1028
1028
1028
1028
1028
1027
1027
1026
1026
1026
1025
1025
1024
1024
1024
1024
1023
1023
1023
1022
1022
1021
1021
1021

Ozone (du)

331
330
330
329
329
328
327
322
316
311
307
304
301
302
303
304
306
308
309
312
316
319
319
320

Sunday 28

Waxing Gibbous 61%

12:44

02:19

19 OK
20 OK
21 Good
22 OK
23 OK
00 OK
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad

Sun - Rise: 08:17, Set: 16:57, Transit: 12:37. Moon - Rise: 12:44, Set: 02:19. Civil Dark: 17:32 - 07:43. Nautical Dark: 18:10 - 07:05. Astro Dark: 18:46 - 06:28

Total Clouds (% Sky Obscured)

18
12
6
16
27
38
46
54
63
67
71
77
84
91
97
91
85
78

Low Clouds (% Sky Obscured)

3
3
4
14
24
34
43
52
60
66
71
77
84
90
97
91
85
78

Medium Clouds (% Sky Obscured)

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

High Clouds (% Sky Obscured)

18
12
1
1
1
1
2
6
11
13
8
2
1
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

Fog (%)

13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13
13

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

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

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

28
25
23
21
21
20
18
18
17
16
16
15
14
13
11
10
9
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-7
-11
-11
-11
-11
-11
-11
-11
-10
-10
-10
-10
-10
-10
-9
-9
-9
-9

Dew Point (°C)

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

Relative Humidity (%)

75
77
77
77
79
81
81
81
81
78
78
78
76
76
76
76
71
67

Pressure (mb)

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

Ozone (du)

320
320
321
321
320
319
317
318
318
318
319
319
320
319
318
317
317
318

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

Generated: 22/12/25 19:32:09. Forecast: 22/12/25 to 28/12/25. Timezone: UTC+1.00