Clear Outside v1.0 - International Weather Forecasts For Astronomers

Wednesday 19

Waning Crescent 1%

07:31

16:09

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
04 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)

97
100
96
100
96
98
82
64
100
80
92
100
100
100
100
100
91
100
100
96
88
100
100
99

Low Clouds (% Sky Obscured)

81
70
75
82
69
96
71
64
100
69
83
66
79
46
51
56
60
63
57
60
62
76
69
76

Medium Clouds (% Sky Obscured)

80
86
84
76
87
71
55
1
30
41
51
70
61
45
62
50
42
97
100
87
80
100
100
99

High Clouds (% Sky Obscured)

1
2
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
0
0
0

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

58
72
45
68
94
61
69
70
45
37
49
55
40
44
36
20
30
22
10
21
50
65
51
22

Precipitation Amount (mm)

0.5
0.7
0
0.2
0.7
0
0.4
0.4
0
0
0.2
0.3
0
0
0
0
0
0
0
0
0
0.3
0
0

Wind Speed/Direction (mph)

11
12
13
14
13
15
12
11
11
13
13
12
12
12
12
12
15
15
10
9
12
12
9
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

75
79
79
80
83
85
79
73
70
60
63
69
78
90
88
93
89
83
83
80
79
94
94
83

Pressure (mb)

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

Ozone (du)

273
271
269
271
271
276
283
289
290
293
299
301
303
306
320
334
338
333
331
332
333
333
333
339

Thursday 20

New Moon 0%

08:41

16:35

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

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)

99
98
79
54
54
69
68
71
50
37
40
25
17
5
5
32
45
65
80
52
36
38
41
27

Low Clouds (% Sky Obscured)

75
66
68
54
47
51
37
50
43
36
38
25
8
0
0
30
42
64
80
50
32
35
41
27

Medium Clouds (% Sky Obscured)

96
96
35
32
10
49
52
56
25
3
3
6
17
5
5
28
45
48
22
2
24
17
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
0
0
9
7
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
Snow
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

3
1
1
4
13
47
78
46
38
34
19
2
0
2
0
0
0
0
0
1
1
1
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0.7
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

9
8
8
7
7
9
8
6
7
11
11
10
9
7
7
6
6
4
5
5
4
5
5
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

74
76
76
79
77
77
88
93
82
70
67
71
75
74
73
73
75
75
77
80
80
81
81
86

Pressure (mb)

1012
1013
1013
1013
1014
1014
1015
1015
1014
1014
1014
1015
1015
1015
1016
1016
1017
1017
1017
1017
1018
1018
1018
1018

Ozone (du)

341
343
343
338
336
335
329
327
327
328
338
344
348
350
347
340
332
331
330
332
334
336
338
339

Friday 21

Waxing Crescent 2%

09:48

17:09

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 OK
20 Good
21 Good
22 Good
23 Good
00 Good
01 Good
02 Good
03 Good
04 OK

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)

45
72
68
82
70
82
78
74
46
62
29
28
11
27
22
0
0
0
1
1
2
5
15
32

Low Clouds (% Sky Obscured)

45
67
68
82
70
82
78
74
46
62
29
27
7
27
22
0
0
0
0
0
0
0
0
15

Medium Clouds (% Sky Obscured)

1
15
7
2
2
0
0
2
2
2
5
26
11
9
1
0
0
0
1
1
2
5
4
10

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
2
3
15
25

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
7
7
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
1
3
2
5
1
2
23
36
37
23
6
13
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
5
5
7
8
9
11
12
12
11
10
9
7
7
7
6
5
4
4
3
3
3
3
3

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

87
87
86
86
86
78
73
66
61
58
62
67
76
77
80
80
81
83
83
83
83
83
81
81

Pressure (mb)

1019
1019
1020
1021
1021
1022
1023
1023
1023
1024
1024
1025
1025
1026
1027
1027
1028
1028
1028
1028
1028
1028
1028
1028

Ozone (du)

338
340
339
337
335
332
330
328
326
322
317
314
312
310
308
308
305
301
299
301
291
280
274
275

Saturday 22

Waxing Crescent 5%

10:49

17:55

05 OK
06 Bad
07 OK
08 OK
09 OK
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

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)

44
53
47
38
33
52
69
66
86
75
92
96
100
98
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

30
45
30
15
0
0
0
0
0
0
0
0
0
0
9
18
27
50
74
97
98
99
100
100

Medium Clouds (% Sky Obscured)

14
53
47
38
33
52
41
2
42
51
76
74
72
72
65
61
59
55
91
89
97
99
100
99

High Clouds (% Sky Obscured)

25
20
18
16
20
39
58
66
86
75
92
95
95
96
99
100
100
100
100
100
62
89
53
41

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
Very Light Rain

Precipitation Probability (%)

0
0
0
0
0
0
1
3
1
0
0
0
0
0
0
0
0
2
7
14
32
44
53
71

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
0.3

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

79
78
75
74
71
66
62
58
55
52
51
52
55
57
59
64
68
74
74
74
74
70
68
64

Pressure (mb)

1028
1027
1027
1027
1027
1027
1026
1025
1024
1023
1022
1021
1021
1020
1019
1019
1018
1017
1016
1015
1014
1013
1012
1011

Ozone (du)

280
285
291
298
306
310
311
313
310
307
310
308
305
302
300
299
297
291
288
287
285
283
285
285

Sunday 23

Waxing Crescent 10%

11:39

18:52

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
04 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)

100
100
99
99
98
98
98
97
98
99
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

100
100
98
96
94
85
77
68
70
72
75
76
77
74
74
70
67
74
79
86
91
94
98
99

Medium Clouds (% Sky Obscured)

79
55
90
65
55
48
86
67
94
97
100
100
100
100
96
92
89
94
98
100
100
100
100
100

High Clouds (% Sky Obscured)

40
1
12
1
16
20
15
15
15
10
10
5
0
5
100
100
100
100
100
100
90
80
71
81

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
7
9
6
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
Very Light Rain
None
None
None
None
None
None
Very Light Rain
Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
Very Light Rain

Precipitation Probability (%)

81
85
68
47
5
9
21
38
41
51
61
52
38
23
20
21
20
22
24
25
35
39
41
58

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

9
8
8
8
8
9
10
10
10
11
12
11
10
10
9
8
7
7
6
5
4
4
4
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

63
65
69
72
74
79
80
82
87
87
87
87
90
91
91
90
90
88
90
93
94
94
94
94

Pressure (mb)

1011
1010
1009
1009
1008
1008
1007
1006
1005
1005
1004
1004
1003
1003
1003
1005
1005
1004
1003
1003
1002
1000
999
998

Ozone (du)

285
282
280
277
277
274
273
276
276
273
273
273
272
271
269
269
269
269
269
270
270
270
270
270

Monday 24

Waxing Crescent 17%

12:18

19:59

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
04 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)

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

Low Clouds (% Sky Obscured)

99
100
99
97
95
96
97
98
99
99
100
97
94
90
91
92
93
90
87
84
85
85
84
88

Medium Clouds (% Sky Obscured)

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

High Clouds (% Sky Obscured)

90
100
100
100
100
100
100
100
68
43
40
57
63
60
59
60
67
46
25
1
18
37
55
47

ISS Passover

Visibility (miles)

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

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
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 (%)

70
79
95
95
95
95
95
95
95
95
95
95
95
95
95
95
95
95
95
95
95
94
81
86

Precipitation Amount (mm)

0.3
0.4
0.9
1.3
1.7
1.4
1.1
0.8
1.4
1.9
2.2
2.3
2.2
1.9
1.6
1.2
0.6
0.7
0.7
0.6
0.7
0.6
0.4
0.5

Wind Speed/Direction (mph)

4
5
4
3
4
5
6
8
9
10
12
14
14
14
16
16
17
18
18
17
17
17
17
17

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

94
93
94
94
94
93
91
90
88
90
90
90
90
90
90
86
85
82
82
82
83
83
83
85

Pressure (mb)

996
994
993
991
989
987
986
985
984
984
984
985
986
986
987
988
989
990
991
992
993
993
994
995

Ozone (du)

271
272
272
275
277
279
281
282
283
285
288
290
291
293
295
299
303
307
308
308
309
311
313
315

Tuesday 25

Waxing Crescent 25%

12:48

21:11

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 OK
00 OK

Sun - Rise: 08:16, Set: 16:59, Transit: 12:38. Moon - Rise: 12:48, Set: 21:11. Civil Dark: 17:35 - 07:41. Nautical Dark: 18:15 - 07:01. Astro Dark: 18:53 - 06:23

Total Clouds (% Sky Obscured)

98
99
99
100
100
100
100
100
100
100
100
99
99
98
84
71
60
49
36
26

Low Clouds (% Sky Obscured)

91
94
96
98
100
100
100
100
100
100
100
96
92
88
59
29
0
8
16
24

Medium Clouds (% Sky Obscured)

98
98
90
83
76
74
71
66
65
65
66
77
88
98
80
61
41
28
15
2

High Clouds (% Sky Obscured)

35
24
31
39
48
37
26
17
20
27
32
46
58
80
56
34
9
7
5
3

ISS Passover

Visibility (miles)

2
1
0
0
0
0
0
0
0
0
0
0
3
6
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

Precipitation Type

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

Precipitation Probability (%)

94
95
87
71
55
57
60
62
51
44
43
40
33
20
18
15
7
4
1
0

Precipitation Amount (mm)

0.6
0.8
0.6
0.3
0
0
0.3
0.3
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

16
16
16
16
16
16
16
16
15
15
14
14
14
14
13
12
11
10
9
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

88
91
94
94
94
94
93
93
94
94
93
94
91
89
86
82
79
74
77
77

Pressure (mb)

995
996
997
998
1000
1001
1002
1003
1005
1006
1007
1008
1010
1011
1012
1014
1015
1016
1016
1017

Ozone (du)

315
316
317
312
307
302
300
298
296
298
299
301
303
304
306
304
301
299
298
297

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

Generated: 19/11/25 05:00:54. Forecast: 19/11/25 to 25/11/25. Timezone: UTC+1.00