Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 30

Waxing Gibbous 82%

13:15

05:35

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

Sun - Rise: 08:45, Set: 17:02, Transit: 12:54. Moon - Rise: 13:15, Set: 05:35. Civil Dark: 17:39 - 08:08. Nautical Dark: 18:20 - 07:27. Astro Dark: 18:58 - 06:49

Total Clouds (% Sky Obscured)

29
26
27
32
0
0
0
0
0
0
0
0
0
0
12
6
0
0
0
6
36
37
0
0

Low Clouds (% Sky Obscured)

9
9
8
0
0
0
0
0
0
0
0
0
0
0
12
6
0
0
0
0
36
37
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
4
0
0
0
0

High Clouds (% Sky Obscured)

2
1
1
2
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

48
49
50
54
60
64
68
71
73
76
75
77
81
83
86
86
86
87
87
86
86
83
77
71

Pressure (mb)

1030
1030
1029
1030
1030
1030
1030
1031
1031
1031
1031
1031
1030
1031
1031
1030
1030
1030
1030
1030
1030
1030
1030
1029

Ozone (du)

288
291
293
290
289
294
302
310
316
316
316
312
310
306
306
310
310
309
310
311
311
311
313
313

Wednesday 31

Waxing Gibbous 91%

13:47

07:02

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

Sun - Rise: 08:45, Set: 17:03, Transit: 12:54. Moon - Rise: 13:47, Set: 07:02. Civil Dark: 17:40 - 08:08. Nautical Dark: 18:21 - 07:27. Astro Dark: 18:59 - 06:49

Total Clouds (% Sky Obscured)

6
18
13
27
21
13
42
42
38
41
40
44
46
49
50
60
63
76
96
97
93
59
90
99

Low Clouds (% Sky Obscured)

6
18
13
27
21
13
42
42
38
41
40
44
46
48
50
48
63
73
81
72
67
52
64
99

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
4
4
2
2
2
2
5
5
3
22
10
46
77
86
80
24
74
27

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
9
22
35
97
100
100
100
100
100
100
100
93
45
5

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
4

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

67
64
64
68
74
77
80
80
83
84
84
84
84
86
86
87
86
87
87
86
87
84
78
72

Pressure (mb)

1029
1028
1028
1027
1027
1027
1027
1026
1026
1026
1025
1024
1024
1023
1022
1022
1021
1020
1019
1019
1018
1018
1018
1017

Ozone (du)

312
310
308
306
307
310
311
308
308
309
309
308
308
308
312
313
312
314
317
321
323
323
326
325

Thursday 1

Waxing Gibbous 97%

14:32

08:18

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

Sun - Rise: 08:45, Set: 17:04, Transit: 12:55. Moon - Rise: 14:32, Set: 08:18. Civil Dark: 17:41 - 08:08. Nautical Dark: 18:21 - 07:28. Astro Dark: 19:00 - 06:49

Total Clouds (% Sky Obscured)

95
88
75
89
80
44
75
90
100
86
98
97
85
100
95
69
56
65
67
69
87
85
83
80

Low Clouds (% Sky Obscured)

95
88
75
88
78
38
58
78
92
75
94
93
75
99
91
68
56
65
67
69
72
70
67
65

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
14
17
40
12
12
17
7
9
6
0
0
0
3
3
5
8
9
9

High Clouds (% Sky Obscured)

35
7
3
22
0
0
0
3
2
1
1
1
0
0
1
1
0
0
0
8
30
25
25
20

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 (%)

8
1
0
3
1
1
0
0
8
8
6
3
5
5
18
23
4
1
1
1
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
7
7
6
6
6
6
6
6
7
7
7
7
6
6
7
6
5
4
4
4
4
4
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

68
65
64
68
70
69
66
65
68
68
69
70
71
73
73
74
77
81
84
84
84
81
76
72

Pressure (mb)

1016
1015
1014
1013
1013
1013
1013
1013
1013
1012
1012
1012
1012
1011
1011
1011
1010
1010
1010
1010
1010
1010
1010
1010

Ozone (du)

323
324
320
322
320
321
323
325
327
333
343
349
351
351
348
346
343
339
337
333
325
316
309
302

Friday 2

Waxing Gibbous 100%

15:34

09:17

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 OK
03 Good
04 Good
05 Good
06 Good
07 Good
08 Good
09 Good
10 Good
11 Good
12 Good

Sun - Rise: 08:45, Set: 17:05, Transit: 12:55. Moon - Rise: 15:34, Set: 09:17. Civil Dark: 17:42 - 08:08. Nautical Dark: 18:22 - 07:27. Astro Dark: 19:01 - 06:49

Total Clouds (% Sky Obscured)

71
69
75
67
56
47
54
65
93
73
53
36
23
13
3
2
1
1
5
1
1
2
2
2

Low Clouds (% Sky Obscured)

64
63
61
58
55
47
54
65
87
69
51
32
23
13
3
2
1
0
2
0
0
0
0
0

Medium Clouds (% Sky Obscured)

13
20
27
27
21
13
32
47
62
41
21
0
0
13
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

3
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
0
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 (%)

3
6
7
12
14
15
19
23
27
38
45
36
25
15
1
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
6
7
6
6
5
5
6
7
9
9
9
6
7
6
6
5
4
5
4
4
4
5
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

68
66
64
61
66
69
72
73
76
77
85
96
89
84
77
78
78
78
78
80
83
80
75
66

Pressure (mb)

1009
1008
1007
1007
1007
1006
1006
1006
1006
1006
1006
1006
1007
1007
1007
1008
1008
1008
1008
1009
1009
1010
1010
1010

Ozone (du)

296
291
291
287
286
282
283
286
292
296
302
311
318
322
323
323
325
326
330
341
344
353
359
360

Saturday 3

Full Moon 99%

16:53

09:58

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

Sun - Rise: 08:45, Set: 17:06, Transit: 12:56. Moon - Rise: 16:53, Set: 09:58. Civil Dark: 17:43 - 08:08. Nautical Dark: 18:23 - 07:27. Astro Dark: 19:02 - 06:49

Total Clouds (% Sky Obscured)

26
26
14
9
5
0
0
0
0
4
6
28
27
30
31
36
42
46
37
28
19
13
7
0

Low Clouds (% Sky Obscured)

8
12
14
9
5
0
0
0
0
3
5
13
21
29
31
36
40
41
34
26
19
13
7
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
8
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
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
8
8
8
7
6
5
4
4
4
4
4
4
4
4
4
5
5
5
5
5
5
6
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-5
-6
-8
-8
-7
-7
-7
-7
-7
-7
-7
-7
-7
-7
-7
-6
-6
-5
-4
-4
-4
-3
-5
-5

Relative Humidity (%)

58
52
46
47
55
59
61
62
62
63
63
64
66
68
71
74
75
77
80
81
83
84
72
64

Pressure (mb)

1010
1010
1010
1010
1011
1011
1011
1012
1012
1013
1013
1013
1013
1014
1014
1014
1014
1014
1014
1015
1015
1016
1016
1016

Ozone (du)

358
366
362
369
369
370
374
380
383
386
387
376
368
365
361
357
355
353
352
354
356
358
359
361

Sunday 4

Waning Gibbous 96%

18:20

10:27

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

Sun - Rise: 08:44, Set: 17:07, Transit: 12:56. Moon - Rise: 18:20, Set: 10:27. Civil Dark: 17:44 - 08:08. Nautical Dark: 18:24 - 07:27. Astro Dark: 19:03 - 06:49

Total Clouds (% Sky Obscured)

0
0
1
5
9
13
8
5
1
11
22
34
45
55
66
62
58
54
36
17
1
2
1
1

Low Clouds (% Sky Obscured)

0
0
1
5
8
12
8
5
0
1
1
1
15
30
48
52
53
54
36
17
0
0
0
0

Medium Clouds (% Sky Obscured)

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

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-6
-7
-7
-8
-7
-7
-6
-7
-7
-7
-7
-7
-7
-7
-7
-7
-7
-7
-7
-7
-8
-8
-8
-8

Relative Humidity (%)

55
53
52
49
54
59
65
66
67
68
68
68
69
69
69
68
68
67
66
64
63
61
55
50

Pressure (mb)

1017
1017
1017
1017
1017
1018
1018
1018
1019
1019
1019
1019
1019
1019
1019
1019
1020
1020
1020
1020
1021
1021
1021
1021

Ozone (du)

362
361
360
360
357
355
353
354
354
355
355
354
353
353
354
354
356
357
359
357
354
351
353
355

Monday 5

Waning Gibbous 91%

19:46

10:48

13 Good
14 OK
15 OK
16 OK
17 OK
18 OK
19 OK
20 OK
21 OK
22 Good
23 Good
00 Good
01 OK
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad

Sun - Rise: 08:44, Set: 17:08, Transit: 12:57. Moon - Rise: 19:46, Set: 10:48. Civil Dark: 17:45 - 08:07. Nautical Dark: 18:25 - 07:27. Astro Dark: 19:04 - 06:49

Total Clouds (% Sky Obscured)

13
27
41
29
21
15
14
14
18
14
14
15
25
44
61
70
77
80

Low Clouds (% Sky Obscured)

13
27
41
29
17
5
0
0
0
0
0
0
17
34
51
65
77
80

Medium Clouds (% Sky Obscured)

2
1
0
0
0
0
0
1
1
14
14
15
25
44
61
66
41
17

High Clouds (% Sky Obscured)

0
0
0
0
0
0
6
14
18
14
14
15
25
44
61
60
30
0

ISS Passover

Visibility (miles)

9
8
7
6
7
8
9
9
9
9
9
9
9
7
5
2
5
7

Fog (%)

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

Precipitation Probability (%)

1
2
3
12
15
17
15
12
2
2
1
1
6
7
4
7
4
5

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

46
46
44
44
53
64
77
72
67
63
67
70
74
77
79
84
84
87

Pressure (mb)

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

Ozone (du)

356
359
362
365
367
368
370
374
378
383
384
385
386
388
391
393
391
389

Forecast for Butry-sur-Oise, Val d'Oise, France (49.09,2.20)

Generated: 30/12/25 13:19:20. Forecast: 30/12/25 to 05/01/26. Timezone: UTC+1.00