Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 18

Waning Crescent 3%

06:21

15:49

04 Good
05 OK
06 OK
07 OK
08 OK
09 OK
10 Bad
11 Bad
12 OK
13 OK
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

Sun - Rise: 08:06, Set: 17:06, Transit: 12:36. Moon - Rise: 06:21, Set: 15:49. Civil Dark: 17:41 - 07:31. Nautical Dark: 18:20 - 06:52. Astro Dark: 18:57 - 06:15

Total Clouds (% Sky Obscured)

10
20
32
31
42
30
86
80
35
19
100
100
100
61
41
65
73
85
81
82
89
99
100
100

Low Clouds (% Sky Obscured)

10
20
32
31
41
0
37
45
35
10
44
99
72
61
35
52
54
45
49
32
75
77
90
91

Medium Clouds (% Sky Obscured)

0
0
0
0
0
23
61
55
0
0
75
75
64
2
6
28
31
37
31
35
47
65
72
90

High Clouds (% Sky Obscured)

1
12
2
10
30
30
2
2
2
7
69
93
94
50
1
0
0
0
0
0
0
2
2
0

ISS Passover

Visibility (miles)

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

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
Very Light Rain
Light Rain

Precipitation Probability (%)

0
0
0
0
0
1
1
2
1
2
3
15
14
7
1
4
25
21
8
33
41
55
66
68

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
0.3
0.6

Wind Speed/Direction (mph)

3
3
2
2
2
3
4
6
8
8
9
10
9
10
11
10
10
12
12
11
10
11
11
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

66
66
66
66
66
63
58
55
54
56
53
45
46
48
54
58
58
67
72
72
69
66
73
78

Pressure (mb)

1024
1024
1024
1024
1024
1024
1023
1023
1022
1021
1020
1019
1018
1018
1017
1017
1016
1016
1015
1014
1014
1013
1012
1011

Ozone (du)

272
274
273
274
276
277
286
287
285
280
276
277
281
278
270
270
270
271
270
274
272
273
271
272

Wednesday 19

Waning Crescent 1%

07:31

16:09

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
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad

Sun - Rise: 08:08, Set: 17:05, Transit: 12:36. Moon - Rise: 07:31, Set: 16:09. Civil Dark: 17:40 - 07:33. Nautical Dark: 18:19 - 06:54. Astro Dark: 18:57 - 06:16

Total Clouds (% Sky Obscured)

100
97
97
98
100
100
100
98
92
99
100
90
99
95
95
86
88
88
91
70
55
65
72
84

Low Clouds (% Sky Obscured)

75
60
79
77
85
90
88
66
76
71
66
76
71
70
61
40
57
67
65
57
53
56
68
71

Medium Clouds (% Sky Obscured)

54
68
94
88
99
100
100
94
73
97
99
78
71
88
93
86
82
86
90
64
35
48
38
54

High Clouds (% Sky Obscured)

1
0
6
12
12
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
4
5
9
9
9
9
6
9
1
7
9
9
6
9
9
9
8
8

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

Very Light Rain
None
None
Very Light Rain
None
Light Rain
Light Rain
Very Light Rain
Light Rain
None
None
None
Light Rain
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

53
44
63
71
63
85
95
71
64
29
36
44
62
46
24
6
9
21
26
20
7
13
13
5

Precipitation Amount (mm)

0.2
0
0
0.3
0
0.4
1.1
0.3
0.4
0
0
0
0.4
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

10
10
11
12
11
12
11
9
10
12
13
12
13
11
12
12
13
13
11
11
10
8
8
8

Chance of Frost

Temperature (°C)

5
5
4
4
5
5
6
6
7
7
8
7
7
6
6
5
4
4
4
4
3
2
2
2

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

76
79
80
85
83
82
79
85
75
66
61
59
78
84
88
83
75
75
86
76
73
73
76
74

Pressure (mb)

1010
1010
1009
1008
1008
1008
1007
1007
1007
1007
1007
1007
1007
1008
1009
1009
1010
1011
1011
1012
1012
1012
1013
1013

Ozone (du)

273
272
274
272
274
276
281
288
300
303
303
305
306
309
321
333
338
336
331
327
331
334
333
333

Thursday 20

New Moon 0%

08:41

16:35

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 OK
17 OK
18 OK
19 Good
20 OK
21 OK
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad

Sun - Rise: 08:09, Set: 17:04, Transit: 12:36. Moon - Rise: 08:41, Set: 16:35. Civil Dark: 17:39 - 07:34. Nautical Dark: 18:18 - 06:55. Astro Dark: 18:56 - 06:17

Total Clouds (% Sky Obscured)

69
71
95
70
65
94
89
97
68
100
92
57
33
39
27
14
30
18
64
61
54
57
62
64

Low Clouds (% Sky Obscured)

51
68
63
56
62
79
53
92
45
38
61
41
23
32
25
0
22
14
62
61
52
52
52
52

Medium Clouds (% Sky Obscured)

62
30
88
38
17
84
77
79
63
100
56
18
6
39
27
14
30
18
64
36
5
0
62
64

High Clouds (% Sky Obscured)

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

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
8
8
9
9
9
9
9
9
9
9
9
9
9
9
9
2
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
Snow
Snow
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
Snow
None

Precipitation Probability (%)

8
20
26
23
24
30
43
28
20
28
33
30
19
13
3
1
0
1
4
2
5
51
86
38

Precipitation Amount (mm)

0
0
0
0
0
0.1
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.9
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

74
76
77
77
77
74
72
62
52
49
43
42
44
49
50
53
54
55
53
55
61
77
88
96

Pressure (mb)

1013
1013
1013
1014
1014
1015
1015
1015
1015
1015
1015
1015
1015
1016
1016
1017
1017
1018
1018
1018
1019
1019
1019
1019

Ozone (du)

338
342
345
343
337
333
330
330
331
329
334
336
342
348
353
348
341
336
333
331
328
328
331
335

Friday 21

Waxing Crescent 2%

09:48

17:09

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
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad

Sun - Rise: 08:11, Set: 17:03, Transit: 12:37. Moon - Rise: 09:48, Set: 17:09. Civil Dark: 17:38 - 07:35. Nautical Dark: 18:17 - 06:56. Astro Dark: 18:55 - 06:18

Total Clouds (% Sky Obscured)

71
69
75
72
72
69
66
64
55
46
41
37
48
60
67
65
60
56
57
56
57
71
86
100

Low Clouds (% Sky Obscured)

63
69
75
72
72
69
66
64
55
46
41
37
48
60
67
65
60
56
55
53
50
45
40
38

Medium Clouds (% Sky Obscured)

4
4
0
5
5
6
7
12
14
12
6
0
0
2
1
10
24
21
40
35
35
35
40
40

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
1
2
2
10
17
30
30
40
45
60
77
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 (%)

23
8
6
5
2
1
14
24
20
14
18
26
19
12
12
10
6
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

89
83
83
86
84
81
79
72
67
62
58
57
62
65
67
69
72
72
72
73
73
70
69
68

Pressure (mb)

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

Ozone (du)

340
340
333
331
329
326
319
314
312
311
309
306
305
302
302
303
303
297
296
289
283
281
283
285

Saturday 22

Waxing Crescent 5%

10:49

17:55

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
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad

Sun - Rise: 08:12, Set: 17:02, Transit: 12:37. Moon - Rise: 10:49, Set: 17:55. Civil Dark: 17:37 - 07:37. Nautical Dark: 18:17 - 06:57. Astro Dark: 18:54 - 06:20

Total Clouds (% Sky Obscured)

100
100
100
98
100
100
100
100
100
100
100
100
100
99
99
84
92
100
98
95
93
93
92
90

Low Clouds (% Sky Obscured)

42
46
49
50
52
53
52
52
53
68
82
97
96
95
94
79
80
82
84
84
85
77
65
54

Medium Clouds (% Sky Obscured)

50
54
38
56
60
70
65
65
65
100
100
100
99
98
98
37
68
100
92
87
84
77
68
59

High Clouds (% Sky Obscured)

89
80
85
77
73
72
93
97
100
100
100
100
68
33
5
5
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
8
0
0
0
0
2
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
Very Light Rain
Snow
Very Light Rain
Snow
None
None
None
Very Light Rain
Light Rain
Light Rain
Light Rain
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
3
19
45
43
52
46
32
33
46
64
80
88
95
17
17
12
12
11
13
19
23
23

Precipitation Amount (mm)

0
0
0
0
0.2
0.1
0.2
0.2
0
0
0
0.3
0.5
0.7
0.9
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

69
70
70
73
77
94
94
96
94
93
91
89
91
91
91
91
93
91
91
89
86
85
86
86

Pressure (mb)

1023
1022
1021
1021
1020
1019
1019
1018
1017
1016
1015
1015
1014
1014
1013
1013
1013
1013
1013
1013
1013
1013
1014
1014

Ozone (du)

290
294
297
305
314
314
309
307
307
305
303
302
302
303
301
299
299
299
299
296
294
291
289
287

Sunday 23

Waxing Crescent 10%

11:39

18:52

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
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad

Sun - Rise: 08:14, Set: 17:01, Transit: 12:37. Moon - Rise: 11:39, Set: 18:52. Civil Dark: 17:37 - 07:38. Nautical Dark: 18:16 - 06:59. Astro Dark: 18:54 - 06:21

Total Clouds (% Sky Obscured)

87
88
82
89
91
94
94
93
86
87
87
92
89
91
95
97
98
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

48
42
40
46
53
68
68
68
71
75
78
77
84
85
86
90
90
90
87
85
82
76
73
70

Medium Clouds (% Sky Obscured)

48
39
32
35
37
28
36
32
22
21
16
10
6
11
16
21
20
30
19
18
23
34
46
60

High Clouds (% Sky Obscured)

0
1
1
33
67
94
94
93
86
87
86
64
55
57
65
74
76
73
83
92
100
83
70
55

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 (%)

13
6
1
2
2
1
3
6
7
20
26
28
32
36
37
43
49
52
46
36
17
21
28
36

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

2
2
3
3
3
3
4
4
4
4
8
8
8
8
8
8
5
5
5
5
5
5
4
5

Dew Point (°C)

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

Relative Humidity (%)

88
88
88
89
86
85
83
79
77
73
75
75
78
82
85
90
88
88
90
90
91
91
91
91

Pressure (mb)

1014
1014
1014
1013
1014
1014
1014
1013
1013
1012
1012
1011
1010
1010
1009
1009
1008
1008
1007
1006
1006
1005
1004
1003

Ozone (du)

285
284
283
282
284
286
288
288
288
288
287
286
286
281
277
272
272
272
271
271
270
270
270
271

Monday 24

Waxing Crescent 17%

12:18

19:59

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
22 Bad
23 Bad
00 Bad

Sun - Rise: 08:15, Set: 17:00, Transit: 12:38. Moon - Rise: 12:18, Set: 19:59. Civil Dark: 17:36 - 07:39. Nautical Dark: 18:15 - 07:00. Astro Dark: 18:53 - 06:22

Total Clouds (% Sky Obscured)

97
94
91
85
78
70
73
77
83
88
94
100
97
89
81
83
88
93
94
95
95

Low Clouds (% Sky Obscured)

71
73
74
72
69
65
55
46
36
47
57
67
64
60
56
62
67
73
78
82
86

Medium Clouds (% Sky Obscured)

74
86
91
80
64
50
65
77
83
88
87
82
64
47
30
41
53
66
71
73
75

High Clouds (% Sky Obscured)

60
60
65
69
72
70
72
69
65
47
36
22
17
11
3
9
11
15
31
42
56

ISS Passover

Visibility (miles)

9
9
9
9
9
8
7
7
7
7
8
8
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

Precipitation Type

None
None
None
None
None
None
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
None
None
None
None
None
None
None

Precipitation Probability (%)

44
49
51
47
48
53
77
95
95
95
95
95
95
65
22
20
16
4
30
40
48

Precipitation Amount (mm)

0
0
0
0
0
0
0.4
0.7
1
1.2
1.3
1.2
0.7
0.3
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

9
9
10
12
13
14
16
17
18
19
15
14
16
16
17
17
18
18
18
19
19

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

91
91
91
90
88
88
88
90
90
91
81
72
64
64
64
65
65
66
66
64
62

Pressure (mb)

1002
1002
1001
1001
1001
1000
1000
999
997
996
996
997
997
997
998
998
998
998
998
998
998

Ozone (du)

272
273
273
274
276
278
281
282
284
285
291
297
303
305
308
311
312
312
312
313
314

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

Generated: 18/11/25 04:52:42. Forecast: 18/11/25 to 24/11/25. Timezone: UTC+1.00