Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 29

Waxing Gibbous 82%

13:10

03:40

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

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)

44
34
27
1
11
24
35
31
27
21
15
15
18
12
14
17
15
13
13
7
13
13
17
13

Low Clouds (% Sky Obscured)

0
0
0
1
8
19
31
27
26
21
14
15
18
12
14
17
15
13
13
6
12
13
16
13

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)

5
4
4
3
4
5
6
7
9
13
15
16
16
17
18
18
19
19
20
20
21
21
21
21

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

81
83
84
84
83
83
83
84
81
78
74
74
75
74
71
68
68
69
69
72
74
75
77
78

Pressure (mb)

1022
1022
1022
1022
1022
1022
1022
1021
1021
1022
1022
1022
1022
1022
1022
1021
1021
1021
1021
1022
1022
1022
1023
1023

Ozone (du)

329
332
329
325
323
324
325
321
316
311
310
304
302
303
300
292
290
286
288
290
289
292
292
294

Tuesday 30

Waxing Gibbous 91%

13:45

05:05

22 OK
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 OK
06 OK
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

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)

16
40
46
59
56
55
44
38
39
39
31
25
21
9
2
2
1
1
0
3
4
5
5
3

Low Clouds (% Sky Obscured)

16
40
43
55
52
48
37
35
35
31
28
23
20
8
1
1
0
1
0
0
1
2
2
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
0
0
0
0
0
0
0
2
3
2
2
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
1
2
1
1
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)

20
20
20
18
17
16
16
16
15
15
14
15
14
14
13
13
12
11
9
7
7
6
5
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

79
82
82
81
82
82
82
81
81
81
82
79
75
70
65
59
56
55
57
60
62
67
69
70

Pressure (mb)

1023
1023
1024
1024
1024
1024
1024
1024
1024
1024
1025
1025
1025
1025
1025
1024
1024
1024
1024
1024
1025
1025
1025
1025

Ozone (du)

299
301
301
302
307
309
315
322
328
330
330
325
324
326
326
324
325
321
321
320
323
327
329
328

Wednesday 31

Waxing Gibbous 91%

14:32

06:29

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 OK
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 OK
18 Bad
19 Good
20 Good
21 Good

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)

2
2
2
3
3
3
4
4
5
5
6
6
7
36
63
72
84
77
69
47
55
8
0
2

Low Clouds (% Sky Obscured)

2
2
2
2
2
2
1
1
1
1
2
2
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
1
1
1
1
1
0
7
36
63
72
84
47
30
17
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
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

72
72
72
73
73
73
76
76
75
73
72
69
59
53
49
47
49
54
61
66
70
70
70
72

Pressure (mb)

1025
1025
1025
1024
1024
1024
1023
1022
1022
1022
1022
1021
1021
1020
1018
1017
1016
1015
1015
1015
1016
1016
1016
1016

Ozone (du)

327
327
329
328
326
322
320
320
321
324
326
326
328
327
327
328
329
330
332
332
333
328
325
328

Thursday 1

Waxing Gibbous 97%

15:35

07:44

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 Good
13 Good
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 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)

1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
4
50
50
70
85
100
100
100
100

Low Clouds (% Sky Obscured)

1
1
1
1
1
1
1
1
1
1
1
1
1
0
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
30
68
99
100
100
100

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
5
5
34
62
91
94
97
100

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
3

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

72
74
75
77
78
78
76
78
76
75
74
71
64
57
54
51
50
58
63
66
67
65
62
59

Pressure (mb)

1016
1016
1016
1015
1015
1015
1015
1014
1014
1014
1014
1014
1013
1012
1011
1010
1009
1009
1008
1008
1008
1007
1007
1006

Ozone (du)

327
322
317
313
315
319
328
330
334
333
330
322
315
310
309
308
306
299
290
285
283
283
281
282

Friday 2

Waxing Gibbous 100%

16:52

08:44

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
21 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)

0
12
55
65
66
74
83
91
100
100
100
100
100
100
100
100
100
99
100
100
100
100
100
100

Medium 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

High Clouds (% Sky Obscured)

100
100
100
73
45
18
42
70
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

ISS Passover

Visibility (miles)

7
3
8
8
5
7
0
0
0
0
0
1
0
0
0
0
0
0
0
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
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
Moderate Rain
Moderate Rain

Precipitation Probability (%)

17
21
31
48
58
82
95
95
95
95
95
95
95
95
95
95
95
95
95
95
95
95
95
95

Precipitation Amount (mm)

0
0
0
0
0
0.4
0.8
1.4
1.5
1.7
1.9
2.1
2.2
2.1
1.9
2.2
1.9
1.5
2
2.1
2.2
2.4
2.6
3

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

56
57
61
68
83
88
94
100
100
98
100
98
98
98
100
100
98
100
100
100
100
100
98
98

Pressure (mb)

1005
1005
1005
1004
1003
1002
1001
1001
1000
999
999
999
999
999
998
997
997
997
996
996
996
996
996
997

Ozone (du)

283
281
280
280
282
286
292
293
295
294
295
299
299
298
300
300
305
309
314
322
330
337
341
344

Saturday 3

Full Moon 99%

18:16

09:28

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 OK
16 OK
17 OK
18 OK
19 OK
20 OK
21 OK

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
98
95
83
68
57
36
30
23
21
16
10
4
6
11
10

Low Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
96
90
75
58
41
29
30
23
21
16
10
4
6
11
10

Medium Clouds (% Sky Obscured)

100
100
100
100
100
100
96
80
63
54
42
15
10
5
5
0
0
0
0
0
0
3
8
10

High Clouds (% Sky Obscured)

100
100
100
98
97
95
100
100
95
90
90
83
60
30
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

0
0
0
0
0
0
1
2
3
4
6
8
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

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

Precipitation Probability (%)

95
95
95
95
95
95
95
95
95
95
95
95
95
88
72
66
53
32
35
31
20
24
22
14

Precipitation Amount (mm)

3.2
3.5
4.1
3.3
2.5
1.6
1.4
1.2
1
0.9
0.9
0.7
0.6
0.5
0.2
0.3
0.1
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-1
-1
-1
-1
-3
-4
-6
-6
-6
-7
-9
-8
-8
-8
-9
-8
-7
-7
-7
-8
-8
-8
-11
-10

Dew Point (°C)

1
1
1
0
-0
-1
-2
-2
-4
-4
-4
-4
-4
-4
-4
-4
-5
-5
-6
-7
-8
-9
-10
-11

Relative Humidity (%)

98
100
98
98
98
94
92
92
89
87
86
84
83
80
78
74
75
75
75
75
75
74
77
80

Pressure (mb)

997
997
998
998
999
1000
1000
1001
1002
1002
1003
1004
1005
1006
1006
1007
1007
1008
1008
1009
1010
1011
1012
1013

Ozone (du)

348
341
334
327
329
331
333
334
336
337
337
337
336
340
343
346
348
349
350
352
354
355
356
357

Sunday 4

Waning Gibbous 96%

19:38

10:01

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
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad

Sun - Rise: 08:17, Set: 17:04, Transit: 12:41. Moon - Rise: 19:38, Set: 10:01. Civil Dark: 17:38 - 07:43. Nautical Dark: 18:16 - 07:05. Astro Dark: 18:52 - 06:29

Total Clouds (% Sky Obscured)

15
20
28
40
50
56
58
64
68
65
63
65
66
68
70
65
61
58
67
76
86

Low Clouds (% Sky Obscured)

15
20
28
40
48
55
58
64
68
65
63
65
66
68
70
65
61
58
64
66
67

Medium Clouds (% Sky Obscured)

0
0
4
5
2
0
0
0
0
0
0
0
0
1
1
1
2
3
29
55
80

High Clouds (% Sky Obscured)

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

ISS Passover

Visibility (miles)

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

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 (%)

25
26
14
22
22
8
11
10
9
7
6
7
7
6
2
2
2
0
3
3
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-10
-10
-9
-8
-11
-12
-12
-12
-13
-13
-12
-12
-11
-11
-10
-10
-7
-7
-6
-7
-7

Dew Point (°C)

-12
-12
-12
-11
-10
-10
-11
-11
-10
-10
-10
-9
-8
-8
-6
-6
-7
-6
-6
-7
-9

Relative Humidity (%)

82
83
83
85
87
87
87
87
88
87
88
87
87
85
84
84
84
87
89
89
88

Pressure (mb)

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

Ozone (du)

358
361
365
368
369
369
370
371
373
375
377
379
381
381
381
381
381
382
383
385
386

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

Generated: 29/12/25 22:21:36. Forecast: 29/12/25 to 04/01/26. Timezone: UTC+1.00