Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 19

Waning Crescent 1%

08:54

15:57

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 OK
21 Bad
22 OK
23 Bad

Sun - Rise: 08:52, Set: 17:00, Transit: 12:56. Moon - Rise: 08:54, Set: 15:57. Civil Dark: 17:38 - 08:14. Nautical Dark: 18:19 - 07:33. Astro Dark: 18:58 - 06:54

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
95
100
100
92
92
86
94
70
65
52
28
90
43
54

Low Clouds (% Sky Obscured)

83
90
96
92
82
38
21
23
44
29
8
0
12
10
24
32
7
34
57
40
12
13
24
43

Medium Clouds (% Sky Obscured)

97
94
97
98
98
100
94
100
96
93
94
95
91
80
67
32
38
18
7
12
9
16
20
47

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
33
85
100
59
43
32
81
34
51
31
28
89
42
54

ISS Passover

Visibility (miles)

4
2
3
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
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

95
95
95
72
41
20
7
2
4
1
1
0
1
1
1
2
3
4
2
1
1
1
1
0

Precipitation Amount (mm)

0.4
1.1
0.6
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

16
16
15
15
13
10
10
8
8
8
8
7
8
9
9
9
7
7
7
7
6
6
4
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

92
93
93
88
83
80
78
74
76
75
75
74
72
69
69
72
74
77
79
81
82
82
82
83

Pressure (mb)

1009
1010
1010
1012
1013
1014
1014
1016
1016
1018
1018
1019
1020
1020
1020
1020
1020
1020
1021
1021
1021
1021
1021
1020

Ozone (du)

297
307
317
324
327
334
337
341
341
338
341
342
346
351
352
354
354
351
341
319
313
310
300
298

Saturday 20

New Moon 0%

09:47

16:51

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
22 Bad
23 Bad

Sun - Rise: 08:52, Set: 17:01, Transit: 12:57. Moon - Rise: 09:47, Set: 16:51. Civil Dark: 17:39 - 08:15. Nautical Dark: 18:20 - 07:33. Astro Dark: 18:59 - 06:54

Total Clouds (% Sky Obscured)

69
93
94
95
95
97
100
100
100
100
97
95
95
95
95
88
85
98
100
99
98
100
100
100

Low Clouds (% Sky Obscured)

56
67
63
78
78
72
62
49
50
52
57
63
81
78
78
83
85
81
77
71
82
86
80
83

Medium Clouds (% Sky Obscured)

53
89
89
88
91
92
100
100
100
98
68
63
75
70
70
57
50
53
59
97
96
95
81
100

High Clouds (% Sky Obscured)

55
55
55
65
53
50
91
83
92
48
46
22
0
33
1
1
4
15
10
15
15
20
18
25

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
3
23
31
15
11
20
30
36
29
12
7
8
9
12
18
31
40
41

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

81
80
79
79
78
76
76
75
75
78
82
82
79
75
69
68
73
79
82
85
85
85
87
88

Pressure (mb)

1020
1019
1019
1018
1017
1016
1016
1015
1015
1014
1014
1014
1013
1012
1010
1010
1009
1009
1008
1008
1008
1007
1007
1006

Ozone (du)

296
293
294
293
292
296
296
295
297
299
296
294
289
289
289
289
290
293
297
302
306
308
309
310

Sunday 21

Waxing Crescent 2%

10:29

17:56

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
22 Bad
23 Bad

Sun - Rise: 08:53, Set: 17:01, Transit: 12:57. Moon - Rise: 10:29, Set: 17:56. Civil Dark: 17:39 - 08:15. Nautical Dark: 18:20 - 07:34. Astro Dark: 18:59 - 06:55

Total Clouds (% Sky Obscured)

90
88
96
100
100
84
95
78
88
93
93
100
100
100
100
100
100
100
100
100
100
100
99
98

Low Clouds (% Sky Obscured)

73
67
57
55
67
61
62
68
69
65
82
87
84
90
89
84
79
84
86
70
54
39
35
30

Medium Clouds (% Sky Obscured)

83
79
71
62
47
61
63
53
80
87
74
100
100
34
96
100
98
100
100
100
81
100
94
88

High Clouds (% Sky Obscured)

25
25
78
100
100
51
82
35
31
29
56
100
100
100
100
100
100
100
100
100
100
100
96
91

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
2
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
Very Light Rain
Light Rain
Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

33
8
4
6
3
7
10
9
59
95
77
17
4
1
7
7
28
45
43
34
41
47
40
31

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0.2
1
0.5
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

11
11
9
9
10
9
10
11
10
9
11
8
9
11
11
11
11
10
10
10
9
9
9
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

4
5
5
5
5
5
4
4
4
5
4
5
5
4
5
5
5
4
4
4
4
5
5
5

Dew Point (°C)

6
7
7
7
6
6
7
6
6
6
7
5
5
5
6
6
5
5
5
5
5
5
5
5

Relative Humidity (%)

88
90
91
90
82
90
91
88
88
91
93
82
79
78
78
78
78
77
78
79
78
79
79
79

Pressure (mb)

1006
1005
1005
1005
1005
1004
1004
1004
1004
1004
1004
1005
1005
1004
1004
1004
1004
1004
1004
1004
1005
1005
1005
1005

Ozone (du)

311
316
321
328
329
331
333
327
325
330
350
371
390
401
407
405
403
403
404
407
414
420
425
427

Monday 22

Waxing Crescent 6%

11:01

19:08

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

Sun - Rise: 08:53, Set: 17:02, Transit: 12:58. Moon - Rise: 11:01, Set: 19:08. Civil Dark: 17:40 - 08:15. Nautical Dark: 18:21 - 07:34. Astro Dark: 19:00 - 06:55

Total Clouds (% Sky Obscured)

96
98
99
100
100
100
100
84
66
46
46
47
47
50
52
55
65
75
85
86
88
86
72
55

Low Clouds (% Sky Obscured)

26
18
9
0
0
0
0
11
22
34
34
33
32
22
11
0
0
0
0
0
0
0
7
14

Medium Clouds (% Sky Obscured)

82
73
66
55
59
67
79
60
51
35
35
45
47
50
52
55
65
50
43
32
34
46
63
54

High Clouds (% Sky Obscured)

88
92
96
100
100
100
100
72
47
16
17
17
23
9
7
7
22
48
62
67
74
72
58
37

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 (%)

15
14
11
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

81
82
82
82
85
85
85
86
85
85
82
79
78
71
69
69
71
76
79
81
82
83
85
85

Pressure (mb)

1005
1005
1005
1006
1006
1006
1006
1007
1007
1008
1008
1008
1008
1008
1008
1008
1009
1009
1009
1010
1010
1011
1011
1011

Ozone (du)

427
426
425
422
419
419
421
422
424
424
425
427
428
429
430
428
425
424
424
422
421
421
418
418

Tuesday 23

Waxing Crescent 12%

11:25

20:23

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
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad

Sun - Rise: 08:54, Set: 17:02, Transit: 12:58. Moon - Rise: 11:25, Set: 20:23. Civil Dark: 17:40 - 08:16. Nautical Dark: 18:21 - 07:35. Astro Dark: 19:01 - 06:56

Total Clouds (% Sky Obscured)

37
54
76
95
97
98
100
100
95
96
99
98
90
91
95
100
100
100
100
100
100
100
99
99

Low Clouds (% Sky Obscured)

21
26
31
34
53
71
90
93
90
92
93
95
90
91
95
100
100
100
99
100
100
100
99
99

Medium Clouds (% Sky Obscured)

37
54
67
74
67
61
12
8
4
0
0
0
0
3
5
8
12
15
22
20
16
16
20
27

High Clouds (% Sky Obscured)

19
38
48
69
78
80
100
91
90
91
82
65
42
29
21
15
15
40
45
44
33
19
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
1
0
1
1
0
1
2
1
8
11
14
15
15
15
15
14

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

85
85
85
85
85
86
88
88
89
89
88
83
79
78
81
82
85
88
90
91
91
91
93
90

Pressure (mb)

1011
1011
1011
1011
1011
1011
1011
1011
1012
1012
1013
1013
1012
1012
1012
1012
1012
1012
1013
1013
1013
1014
1014
1014

Ozone (du)

415
415
419
417
417
402
393
393
390
387
385
386
389
388
390
392
394
394
395
396
396
396
396
395

Wednesday 24

Waxing Crescent 19%

11:44

21:39

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
22 Bad
23 Bad

Sun - Rise: 08:54, Set: 17:03, Transit: 12:59. Moon - Rise: 11:44, Set: 21:39. Civil Dark: 17:41 - 08:16. Nautical Dark: 18:22 - 07:35. Astro Dark: 19:01 - 06:56

Total Clouds (% Sky Obscured)

98
97
95
94
94
94
93
90
87
84
87
90
91
91
93
97
88
76
66
67
75
81
86
90

Low Clouds (% Sky Obscured)

98
97
95
94
94
94
93
90
87
84
81
83
82
88
93
94
88
76
66
67
75
81
86
90

Medium Clouds (% Sky Obscured)

40
26
15
3
2
1
0
0
0
0
0
1
1
1
1
1
1
0
0
2
2
0
0
0

High Clouds (% Sky Obscured)

5
5
9
9
7
4
2
1
1
1
1
2
11
8
4
2
2
1
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 (%)

10
11
10
3
8
8
1
5
6
1
3
3
1
4
4
2
5
5
3
6
8
8
8
7

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

90
88
88
86
85
85
83
83
83
82
82
78
72
69
72
76
79
82
83
85
85
86
86
86

Pressure (mb)

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

Ozone (du)

393
392
392
393
393
391
388
386
386
386
385
387
389
391
388
386
383
382
380
379
378
377
376
373

Thursday 25

Waxing Crescent 28%

12:00

22:55

Sun - Rise: 08:54, Set: 17:04, Transit: 12:59. Moon - Rise: 12:00, Set: 22:55. Civil Dark: 17:42 - 08:17. Nautical Dark: 18:23 - 07:35. Astro Dark: 19:02 - 06:56

Total Clouds (% Sky Obscured)

Low Clouds (% Sky Obscured)

Medium Clouds (% Sky Obscured)

High Clouds (% Sky Obscured)

ISS Passover

Visibility (miles)

Fog (%)

Precipitation Type

Precipitation Probability (%)

Precipitation Amount (mm)

Wind Speed/Direction (mph)

Chance of Frost

Temperature (°C)

Feels Like (°C)

Dew Point (°C)

Relative Humidity (%)

Pressure (mb)

Ozone (du)

Forecast for Saint-Martin-du-Bec, Seine-Maritime, France (49.60,0.21)

Generated: 18/12/25 23:03:25. Forecast: 19/12/25 to 25/12/25. Timezone: UTC+1.00