Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 29

Waxing Gibbous 72%

12:44

03:40

08 Bad
09 Bad
10 Bad
11 OK
12 OK
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
07 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)

73
63
52
28
21
16
9
10
15
9
2
0
10
12
12
12
6
2
2
3
3
6
3
3

Low Clouds (% Sky Obscured)

32
30
31
24
21
16
9
10
15
9
2
0
10
12
12
10
6
2
2
2
2
6
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
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 (%)

31
32
34
4
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
3
2
1
1
1
1
1
2
2
2
2
2
2
2
2
2
2
3
4
5
5
7
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

85
81
74
68
64
62
58
61
67
72
73
74
77
80
81
81
83
84
84
84
84
84
83
78

Pressure (mb)

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

Ozone (du)

319
317
317
318
319
320
319
321
322
320
319
320
323
327
328
331
328
327
326
324
322
321
319
316

Tuesday 30

Waxing Gibbous 82%

13:10

05:05

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

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)

4
4
10
10
16
17
6
2
2
2
10
16
14
18
19
40
52
51
54
49
52
46
46
46

Low Clouds (% Sky Obscured)

3
3
10
9
16
17
5
2
2
1
10
16
14
18
19
37
50
49
53
47
52
46
46
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
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
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
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)

14
15
17
18
19
20
20
20
20
20
21
21
20
20
20
19
18
18
17
16
16
15
14
14

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

74
71
72
74
73
72
69
70
71
74
77
78
77
76
78
79
82
84
82
81
79
76
78
76

Pressure (mb)

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

Ozone (du)

316
314
312
311
311
306
303
297
288
293
295
295
300
301
302
301
301
304
308
312
313
312
315
321

Wednesday 31

Waxing Gibbous 91%

13:45

06:29

08 Bad
09 OK
10 OK
11 OK
12 OK
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
07 Good

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)

44
40
37
16
16
1
1
1
0
0
0
0
0
1
1
1
1
1
3
3
3
4
4
3

Low Clouds (% Sky Obscured)

39
34
30
14
13
1
1
1
0
0
0
0
0
1
1
1
1
0
0
0
0
0
1
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
1
1
2
1

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 (%)

2
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
2
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)

13
12
12
12
11
11
10
10
9
8
7
6
5
4
2
2
2
2
2
2
3
3
3
3

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-7
-7
-7
-7
-7
-8
-8
-8
-9
-10
-10
-10
-10
-9
-10
-10
-10
-10
-10
-10
-10
-10
-9
-9

Relative Humidity (%)

76
76
72
67
62
55
51
50
49
53
55
57
59
62
60
61
63
64
64
65
66
67
70
70

Pressure (mb)

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

Ozone (du)

327
329
333
336
336
336
337
339
337
335
334
334
334
334
334
333
330
330
329
328
324
323
324
326

Thursday 1

Waxing Gibbous 97%

14:32

07:44

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

Sun - Rise: 08:18, Set: 17:00, Transit: 12:39. Moon - Rise: 14:32, Set: 07:44. Civil Dark: 17:34 - 07:43. Nautical Dark: 18:12 - 07:05. Astro Dark: 18:49 - 06:29

Total Clouds (% Sky Obscured)

3
8
52
66
80
70
50
34
57
80
100
83
67
50
55
55
60
55
60
65
65
70
70
70

Low Clouds (% Sky Obscured)

1
1
1
0
0
0
0
0
0
0
0
0
0
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
0
0
0
0
0
55

High Clouds (% Sky Obscured)

1
2
34
66
80
67
37
4
33
67
100
68
37
5
5
5
10
5
10
10
5
10
10
10

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

70
68
60
55
50
48
47
52
58
61
62
60
60
58
61
62
65
66
67
65
63
62
60
59

Pressure (mb)

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

Ozone (du)

325
327
326
324
323
323
325
325
325
326
323
324
324
323
322
320
318
318
317
315
311
306
303
301

Friday 2

Waxing Gibbous 100%

15:35

No Set

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
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad

Sun - Rise: 08:17, Set: 17:01, Transit: 12:39. Moon - Rise: 15:35, Set: No Set. Civil Dark: 17:35 - 07:43. Nautical Dark: 18:13 - 07:05. Astro Dark: 18:50 - 06:29

Total Clouds (% Sky Obscured)

65
65
73
87
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
99

Low Clouds (% Sky Obscured)

0
0
20
60
60
60
60
60
60
60
60
81
79
81
75
69
63
69
80
91
72
55
37
41

Medium Clouds (% Sky Obscured)

55
55
64
76
84
86
93
100
99
100
100
98
96
94
96
98
100
100
100
100
99
96
94
91

High Clouds (% Sky Obscured)

10
8
37
67
100
70
40
15
21
31
40
95
97
100
100
100
100
100
100
100
100
100
100
99

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
6
8
6
5
4
5
6
8
8
9
9
8
7
6
7
8
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
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

0
0
4
14
11
23
40
54
55
58
67
88
86
82
81
75
67
81
92
95
95
95
95
95

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0.3
0.5
0.5
0.4
0.4
0.4
0.3
0.4
0.5
0.6
0.8
0.9
0.9
0.9

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

59
58
57
56
59
60
66
79
88
91
93
93
93
93
93
91
91
91
91
91
91
93
91
89

Pressure (mb)

1012
1012
1012
1011
1010
1010
1009
1009
1008
1008
1008
1008
1007
1006
1006
1005
1005
1004
1004
1004
1004
1003
1003
1002

Ozone (du)

298
296
296
298
300
300
300
301
302
299
301
305
306
307
309
308
308
307
306
305
304
302
300
299

Saturday 3

Full Moon 99%

16:52

08:44

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
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 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)

97
97
98
99
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
98
96
94
93

Low Clouds (% Sky Obscured)

49
49
56
60
59
63
62
56
57
59
61
68
77
87
73
59
48
45
42
39
41
38
35
30

Medium Clouds (% Sky Obscured)

90
85
85
85
97
98
99
99
99
100
100
100
99
99
99
100
100
98
96
95
89
78
69
67

High Clouds (% Sky Obscured)

97
95
93
91
89
92
96
100
99
99
99
99
100
98
100
99
100
100
100
100
94
82
72
67

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

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
Very Light Rain
None

Precipitation Probability (%)

95
95
95
95
94
95
95
95
95
95
95
95
95
95
95
95
95
95
95
95
95
84
70
59

Precipitation Amount (mm)

0.8
0.7
0.7
0.7
0.6
0.6
0.7
0.7
0.9
1
1.1
1.2
1.4
1.2
1.5
1.1
1
1.2
0.9
0.7
0.6
0.4
0.3
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

88
88
85
83
82
82
82
82
80
82
82
82
82
80
80
79
79
79
79
79
77
77
76
76

Pressure (mb)

1002
1002
1002
1001
1000
999
999
999
998
998
998
998
997
997
997
997
997
997
997
997
997
997
997
997

Ozone (du)

299
300
300
303
305
308
310
312
314
316
319
321
328
335
342
344
346
348
343
338
332
330
328
326

Sunday 4

Waning Gibbous 96%

18:16

09:28

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: 17:03, 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)

93
92
89
88
90
92
95
97
98
99
100
99
97
95
94
93
92

Low Clouds (% Sky Obscured)

29
24
33
40
48
54
64
70
55
41
24
47
70
93
94
93
92

Medium Clouds (% Sky Obscured)

69
76
83
88
88
91
94
97
98
99
100
95
91
89
94
93
92

High Clouds (% Sky Obscured)

55
50
55
69
85
90
80
75
60
55
40
25
15
15
10
10
10

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
8
7
5
4
2
0
0
0

Fog (%)

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
Light Rain
Light Rain
Moderate Rain
Snow
Snow
Snow

Precipitation Probability (%)

47
29
29
26
14
19
18
12
34
59
88
95
95
95
95
95
95

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
1.1
2
2.6
2
1.4
0.8

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

74
74
72
72
72
72
73
73
75
80
85
89
93
94
98
98
98

Pressure (mb)

997
997
998
998
998
999
999
999
999
1000
1001
1002
1004
1005
1007
1008
1009

Ozone (du)

327
328
329
329
329
329
327
325
324
323
322
320
324
328
331
333
335

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

Generated: 29/12/25 08:18:24. Forecast: 29/12/25 to 04/01/26. Timezone: UTC+1.00