Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 28

Waxing Gibbous 72%

12:44

02:19

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

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)

71
62
57
40
40
40
38
32
26
24
29
31
26
5
0
0
0
0
0
0
0
0
0
0

Low Clouds (% Sky Obscured)

22
27
37
40
39
39
38
32
26
24
29
31
26
5
0
0
0
0
0
0
0
0
0
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 (%)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

89
89
89
91
87
87
89
89
87
87
87
86
84
77
72
68
64
61
62
68
72
73
73
77

Pressure (mb)

1025
1025
1025
1025
1025
1025
1025
1025
1024
1024
1024
1024
1024
1024
1024
1023
1022
1021
1020
1020
1020
1021
1021
1021

Ozone (du)

328
331
330
330
330
329
327
327
328
328
325
323
320
319
320
322
319
319
318
317
317
317
317
319

Monday 29

Waxing Gibbous 82%

13:10

03:40

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

Sun - Rise: 08:17, Set: 16:58, Transit: 12:38. Moon - Rise: 13:10, Set: 03:40. Civil Dark: 17:33 - 07:43. Nautical Dark: 18:11 - 07:05. Astro Dark: 18:47 - 06:28

Total Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
2
2
2
2
4
11
21
8
17
16
15
27
32
39
44

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
2
1
2
2
3
9
18
7
16
16
13
26
29
39
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)

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
2
2
3
3
2
3
3
5
9
12
14
15
17
18
19
19
20
21
21
22
21
21

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

0
1
-0
0
-0
-1
-1
-2
-2
-3
-4
-5
-6
-6
-6
-5
-5
-4
-5
-6
-8
-9
-9
-9

Dew Point (°C)

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

Relative Humidity (%)

78
80
80
81
83
84
84
86
86
86
81
77
74
74
75
74
72
72
73
74
78
75
78
79

Pressure (mb)

1021
1021
1021
1021
1021
1021
1021
1021
1020
1020
1020
1021
1021
1022
1022
1021
1021
1020
1021
1021
1021
1022
1022
1023

Ozone (du)

320
324
325
327
325
327
325
325
322
319
316
315
313
313
312
314
310
303
294
294
295
294
297
299

Tuesday 30

Waxing Gibbous 82%

13:45

05:05

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

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

Total Clouds (% Sky Obscured)

55
53
50
48
44
38
39
35
33
34
37
40
40
37
16
9
1
0
0
0
0
0
0
0

Low Clouds (% Sky Obscured)

52
50
48
43
39
35
39
35
33
31
34
37
33
30
13
7
0
0
0
0
0
0
0
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 (%)

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
0
0
0
0
3
0
0
0
0
2
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)

20
20
19
19
17
17
15
14
14
13
13
12
11
11
11
11
11
11
11
10
9
8
8
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-10
-10
-10
-10
-10
-10
-10
-10
-9
-9
-9
-9
-9
-8
-7
-5
-4
-3
-2
-3
-4
-5
-6
-6

Dew Point (°C)

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

Relative Humidity (%)

79
81
84
81
78
75
75
73
75
76
75
73
72
68
63
57
50
47
46
47
50
52
54
56

Pressure (mb)

1023
1023
1024
1024
1024
1024
1025
1025
1025
1025
1026
1026
1026
1027
1027
1026
1026
1025
1025
1025
1025
1025
1025
1025

Ozone (du)

301
307
311
312
312
312
315
318
323
329
336
344
344
347
348
348
343
340
341
341
340
338
339
340

Wednesday 31

Waxing Gibbous 91%

14:32

06:29

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

Sun - Rise: 08:18, Set: 17:00, Transit: 12:39. Moon - Rise: 14:32, Set: 06:29. Civil Dark: 17:34 - 07:43. Nautical Dark: 18:12 - 07:05. Astro Dark: 18:49 - 06:29

Total Clouds (% Sky Obscured)

0
0
0
0
0
0
2
2
3
4
5
22
28
58
13
9
15
32
75
85
87
87
85
79

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
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
2
6
8
11
7
7
15
32
59
59
61
61
54
47

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

56
56
58
59
61
62
64
65
66
67
69
69
66
59
54
48
46
44
48
56
61
61
59
59

Pressure (mb)

1025
1025
1024
1024
1024
1024
1023
1023
1023
1022
1022
1022
1021
1021
1020
1019
1018
1017
1016
1016
1016
1016
1016
1016

Ozone (du)

339
338
337
336
333
332
330
328
329
330
330
331
331
326
326
326
325
323
325
327
328
327
326
325

Thursday 1

Waxing Gibbous 97%

15:35

07:44

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
19 Bad
20 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)

77
59
64
60
73
86
99
97
94
93
97
96
96
94
93
92
90
82
77
80
88
95
97
98

Low Clouds (% Sky Obscured)

0
0
0
0
9
18
27
27
27
27
22
26
26
45
64
83
84
82
77
80
76
75
70
60

Medium Clouds (% Sky Obscured)

0
0
0
0
15
30
49
49
83
80
15
15
15
10
10
20
20
25
24
44
66
86
91
95

High Clouds (% Sky Obscured)

40
25
11
0
10
21
34
25
19
15
0
0
0
5
10
10
10
5
0
25
51
76
84
92

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
6
3
0
0
0
0
0

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
1
2
3
10
14
11
12
14
11
10
8
2
11
15
18
29
30
27
44
51

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-8
-7
-7
-7
-7
-7
-6
-6
-6
-6
-6
-5
-5
-5
-4
-3
-2
-1
0
3
2
2
1
1

Relative Humidity (%)

60
62
64
64
66
66
66
66
66
65
63
63
60
59
60
60
61
69
82
94
96
96
96
96

Pressure (mb)

1016
1016
1016
1016
1016
1015
1015
1015
1014
1014
1014
1011
1011
1011
1011
1010
1010
1009
1009
1009
1009
1009
1009
1008

Ozone (du)

322
321
321
318
318
323
324
321
319
315
307
305
303
300
301
303
304
303
302
301
304
307
310
309

Friday 2

Waxing Gibbous 100%

16:52

08:44

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
19 Bad
20 Bad

Sun - Rise: 08:17, Set: 17:02, Transit: 12:40. Moon - Rise: 16:52, Set: 08:44. Civil Dark: 17:36 - 07:43. Nautical Dark: 18:14 - 07:05. Astro Dark: 18:50 - 06:29

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

60
50
45
45
57
74
92
88
84
82
83
82
79
86
93
100
100
100
100
99
98
97
98
99

Medium Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
99
98
99
99

High Clouds (% Sky Obscured)

99
99
99
99
99
100
100
100
100
100
100
100
100
100
100
100
100
100
100
96
87
80
91
95

ISS Passover

Visibility (miles)

0
0
1
2
2
2
2
2
4
6
8
8
9
9
7
5
3
5
7
9
6
4
1
1

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
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

55
77
90
95
95
95
95
95
95
95
95
95
95
95
95
95
95
95
95
95
95
95
95
95

Precipitation Amount (mm)

0
0.4
0.5
0.7
1.1
1.2
1.2
1.2
1.3
1.4
1.2
1
0.6
0.9
1
1.2
1.7
1.7
1.6
1.8
1.8
1.5
2
2.3

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

98
98
98
98
96
98
96
94
94
94
91
89
90
88
88
91
91
90
90
90
91
93
96
96

Pressure (mb)

1008
1007
1006
1005
1005
1004
1003
1002
1002
1001
1000
1000
1000
999
999
999
998
998
997
996
997
997
997
998

Ozone (du)

308
306
300
294
288
289
289
290
291
293
295
298
301
304
309
314
319
322
324
327
334
340
347
351

Saturday 3

Full Moon 99%

18:16

09:28

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

Sun - Rise: 08:17, Set: 17:03, Transit: 12:40. Moon - Rise: 18:16, Set: 09:28. Civil Dark: 17:37 - 07:43. Nautical Dark: 18:15 - 07:05. Astro Dark: 18:51 - 06:29

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
99
98
97
90
80
68

Low Clouds (% Sky Obscured)

100
100
100
100
100
100
100
99
99
97
94
92
90
80
68
57

Medium Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
98
96
96
90
80
68

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
74
42
13
6
3
0

ISS Passover

Visibility (miles)

1
0
0
1
1
0
0
0
0
1
1
2
3
4
6
7

Fog (%)

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

Precipitation Type

Moderate Rain
Moderate Rain
Moderate Rain
Moderate Rain
Moderate Rain
Moderate Rain
Moderate Rain
Snow
Snow
Snow
Snow
Light Rain
None
None
None
None

Precipitation Probability (%)

95
95
95
95
95
95
95
95
95
95
95
90
57
48
38
23

Precipitation Amount (mm)

2.6
2.8
2.9
2.8
2.9
3.1
3.5
2.7
2
1.4
1
0.5
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

98
96
96
96
96
96
98
100
96
94
91
91
88
86
83
82

Pressure (mb)

998
998
999
999
999
1001
1002
1004
1004
1005
1006
1007
1008
1009
1009
1009

Ozone (du)

354
358
353
348
343
338
333
329
329
329
328
331
333
335
338
342

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

Generated: 28/12/25 21:04:56. Forecast: 28/12/25 to 03/01/26. Timezone: UTC+1.00