Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 18

Waning Crescent 12%

03:24

19:04

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

Sun - Rise: 07:40, Set: 20:05, Transit: 13:53. Moon - Rise: 03:24, Set: 19:04. Civil Dark: 20:37 - 07:08. Nautical Dark: 21:15 - 06:30. Astro Dark: 21:55 - 05:51

Total Clouds (% Sky Obscured)

83
78
83
60
51
51
52
90
76
70
50
61
35
31
33
36
39
37
51
50
40
41
47
42

Low Clouds (% Sky Obscured)

61
74
71
60
51
51
52
90
76
70
50
61
35
31
33
36
39
37
51
50
40
41
44
37

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
2
12
18
32
37
50
45
7
36
47
42

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

Chance of Frost

Temperature (°C)

17
16
16
15
15
15
16
17
19
20
21
22
23
23
23
22
21
19
18
17
17
16
16
16

Feels Like (°C)

18
17
17
16
15
15
15
16
18
19
22
23
24
25
24
23
21
19
18
17
16
17
16
15

Dew Point (°C)

15
15
14
14
14
14
13
14
14
13
13
13
13
13
13
13
14
14
13
13
12
13
13
13

Relative Humidity (%)

90
89
90
93
90
89
85
79
72
66
60
55
54
53
53
57
63
72
72
73
74
79
81
82

Pressure (mb)

1022
1022
1022
1022
1022
1022
1022
1023
1023
1023
1023
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022

Ozone (du)

263
263
261
259
259
260
260
259
260
260
260
260
258
259
260
261
261
260
260
261
260
258
257
257

Friday 19

Waning Crescent 6%

04:43

19:20

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

Sun - Rise: 07:42, Set: 20:03, Transit: 13:52. Moon - Rise: 04:43, Set: 19:20. Civil Dark: 20:35 - 07:10. Nautical Dark: 21:13 - 06:32. Astro Dark: 21:52 - 05:52

Total Clouds (% Sky Obscured)

32
91
26
14
100
100
97
81
100
79
53
19
37
5
12
9
1
19
97
99
66
96
100
53

Low Clouds (% Sky Obscured)

29
23
5
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
2
3
0
5
3
12
9
1
10
28
18
38
40
66
34

High Clouds (% Sky Obscured)

32
81
26
14
100
100
97
81
100
79
53
19
33
4
1
1
1
5
89
98
44
76
92
34

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
2
3
0
0
1
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)

4
5
5
5
5
6
6
6
7
7
7
7
7
8
8
7
4
1
4
6
6
6
6
7

Chance of Frost

Temperature (°C)

15
15
15
15
15
14
16
19
22
24
26
28
29
29
29
28
26
23
22
22
21
21
21
21

Feels Like (°C)

15
15
14
14
13
12
14
16
18
21
23
25
26
28
28
28
26
24
22
21
18
19
20
19

Dew Point (°C)

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

Relative Humidity (%)

80
77
72
63
60
53
47
38
29
24
21
19
19
18
19
23
30
36
34
35
36
36
39
46

Pressure (mb)

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

Ozone (du)

257
259
259
258
258
259
260
261
261
261
259
258
257
256
256
256
257
259
258
257
257
257
256
256

Saturday 20

Waning Crescent 2%

05:59

19:34

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
00 Bad
01 Bad
02 Bad

Sun - Rise: 07:43, Set: 20:00, Transit: 13:52. Moon - Rise: 05:59, Set: 19:34. Civil Dark: 20:32 - 07:11. Nautical Dark: 21:10 - 06:33. Astro Dark: 21:50 - 05:54

Total Clouds (% Sky Obscured)

51
84
100
100
100
48
38
63
85
100
57
98
100
98
64
90
84
88
92
96
90
83
76
70

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
8
42
39
46
49
41
9
0
54
50
63
76
89
82
76
69
63

Medium Clouds (% Sky Obscured)

51
62
44
58
65
48
38
63
85
81
57
82
18
17
13
19
15
19
83
80
70
67
65
60

High Clouds (% Sky Obscured)

37
69
100
100
100
35
31
25
25
100
25
94
100
96
39
31
30
33
36
38
33
31
35
25

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
5
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
Light Rain
Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
1
1
7
19
31
8
14
92
90
25
25
27
20
1
1
8
20
26
27
29
26
24

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0.6
0.6
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

4
5
5
4
4
5
7
11
11
9
10
8
8
9
9
9
10
10
10
11
11
12
12
13

Chance of Frost

Temperature (°C)

20
20
21
20
19
20
21
21
21
21
20
20
20
22
23
23
23
22
20
19
18
17
17
16

Feels Like (°C)

19
19
19
19
18
19
19
19
18
21
20
20
20
22
23
23
22
21
20
19
18
16
15
14

Dew Point (°C)

10
10
11
10
10
10
10
11
14
16
18
19
19
18
16
15
15
15
15
15
14
14
12
11

Relative Humidity (%)

51
52
52
54
53
52
51
53
66
73
91
95
92
76
65
60
60
66
70
73
79
79
75
73

Pressure (mb)

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

Ozone (du)

255
256
256
256
255
256
255
254
255
256
257
258
260
260
261
263
263
264
265
265
265
265
265
266

Sunday 21

New Moon 0%

07:12

19:46

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
00 Bad
01 Bad
02 Bad

Sun - Rise: 07:45, Set: 19:58, Transit: 13:51. Moon - Rise: 07:12, Set: 19:46. Civil Dark: 20:30 - 07:13. Nautical Dark: 21:08 - 06:35. Astro Dark: 21:47 - 05:56

Total Clouds (% Sky Obscured)

67
63
66
69
71
68
65
61
67
76
85
86
95
96
79
63
50
48
49
52
64
78
92
83

Low Clouds (% Sky Obscured)

57
51
55
60
63
62
61
59
61
65
65
57
46
35
24
20
10
17
30
42
51
60
69
51

Medium Clouds (% Sky Obscured)

60
55
45
5
0
0
0
0
2
3
4
6
59
59
58
55
49
48
49
52
64
78
91
37

High Clouds (% Sky Obscured)

15
5
5
10
10
7
13
20
33
47
56
67
73
84
65
34
15
13
20
20
15
15
15
18

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 (%)

9
14
19
10
4
11
10
2
8
6
2
6
5
0
1
0
0
1
3
6
21
21
19
26

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
14
15
16
16
15
14
14
15
14
13
12
10
9
9
7
6
7
5
5
5
4
5
5

Chance of Frost

Temperature (°C)

16
16
15
14
14
14
14
15
15
16
17
17
17
17
17
16
15
15
14
14
13
14
13
13

Feels Like (°C)

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

Dew Point (°C)

11
11
11
10
8
7
7
7
8
7
7
6
6
6
6
6
7
7
6
6
7
7
7
8

Relative Humidity (%)

75
73
76
76
67
63
61
60
61
56
51
49
46
48
48
50
55
58
59
61
64
64
64
69

Pressure (mb)

1011
1012
1012
1012
1012
1013
1014
1014
1015
1015
1015
1015
1014
1014
1014
1014
1014
1013
1014
1015
1015
1015
1015
1015

Ozone (du)

267
269
270
270
275
276
278
279
280
280
280
281
281
280
281
282
282
283
284
287
289
295
298
301

Monday 22

Waxing Crescent 1%

08:23

19:58

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
00 Bad
01 Bad
02 Bad

Sun - Rise: 07:46, Set: 19:56, Transit: 13:51. Moon - Rise: 08:23, Set: 19:58. Civil Dark: 20:28 - 07:14. Nautical Dark: 21:06 - 06:37. Astro Dark: 21:45 - 05:58

Total Clouds (% Sky Obscured)

68
63
72
82
93
98
97
100
100
100
85
85
91
100
98
96
94
88
82
76
84
92
100
100

Low Clouds (% Sky Obscured)

34
17
27
38
49
54
57
63
60
58
56
59
61
64
61
58
57
57
59
60
55
48
42
35

Medium Clouds (% Sky Obscured)

31
25
34
41
59
62
68
100
100
84
57
53
53
54
55
60
59
60
61
63
73
80
79
61

High Clouds (% Sky Obscured)

6
8
23
35
51
61
77
91
94
97
85
66
39
18
17
41
45
40
27
13
7
7
4
35

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
5
4
9
9
9
9
9
9
8
7
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
Very Light Rain
Very Light Rain
Very Light Rain
None
None
Light Rain
Light Rain
Very Light Rain
Light Rain
Light Rain
None
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
None
Light Rain

Precipitation Probability (%)

20
11
26
54
58
54
48
51
70
76
68
95
92
59
79
84
92
92
84
73
76
71
64
75

Precipitation Amount (mm)

0
0
0
0.2
0.3
0.2
0
0
0.4
0.5
0.2
0.8
0.6
0
0.4
0.5
0.7
0.6
0.4
0.2
0.3
0.3
0
0.4

Wind Speed/Direction (mph)

5
4
4
3
3
3
4
6
7
7
6
7
8
9
11
6
8
12
9
7
5
4
5
7

Chance of Frost

Temperature (°C)

13
12
11
11
11
11
12
13
14
15
15
16
16
17
17
16
14
12
12
12
12
12
11
11

Feels Like (°C)

11
13
12
13
12
13
14
13
13
14
15
17
17
17
16
17
17
19
10
10
10
10
10
10

Dew Point (°C)

8
9
9
9
9
10
11
11
11
11
11
9
9
8
7
9
10
11
11
11
11
11
11
10

Relative Humidity (%)

74
80
84
84
90
93
92
86
82
76
75
64
60
56
51
63
76
93
95
95
95
95
96
96

Pressure (mb)

1015
1015
1015
1015
1016
1016
1016
1017
1017
1017
1017
1017
1017
1016
1016
1016
1017
1017
1017
1018
1018
1018
1017
1017

Ozone (du)

301
301
302
303
305
307
311
314
315
314
314
314
313
312
312
313
313
314
314
314
314
315
315
316

Tuesday 23

Waxing Crescent 3%

09:33

20:10

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
00 Bad
01 Bad
02 Bad

Sun - Rise: 07:48, Set: 19:54, Transit: 13:51. Moon - Rise: 09:33, Set: 20:10. Civil Dark: 20:26 - 07:16. Nautical Dark: 21:03 - 06:38. Astro Dark: 21:42 - 05:59

Total Clouds (% Sky Obscured)

98
96
96
94
92
96
99
100
100
98
96
91
87
83
74
57
46
62
79
89
90
92
91
90

Low Clouds (% Sky Obscured)

30
25
32
38
45
53
62
72
67
72
75
82
87
83
74
57
46
62
79
81
83
85
86
79

Medium Clouds (% Sky Obscured)

42
32
42
46
54
58
55
38
33
23
18
17
11
15
15
15
15
10
5
0
0
0
0
0

High Clouds (% Sky Obscured)

67
96
81
66
50
59
70
77
84
90
90
88
87
83
74
57
46
62
65
50
24
14
1
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

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

Precipitation Probability (%)

69
48
68
70
65
64
62
55
58
55
50
45
39
33
47
58
67
94
95
95
95
85
62
66

Precipitation Amount (mm)

0.3
0
0.3
0.3
0.2
0.2
0.3
0
0.3
0.2
0
0
0
0
0
0
0
0.6
0.8
0.8
0.7
0.4
0
0.3

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

95
96
96
95
95
96
93
90
89
82
75
69
64
57
52
54
57
60
64
67
72
72
72
72

Pressure (mb)

1017
1017
1017
1017
1017
1017
1018
1018
1018
1018
1018
1018
1018
1018
1017
1018
1018
1018
1018
1018
1018
1018
1018
1019

Ozone (du)

316
317
317
319
320
321
321
321
320
321
321
321
322
323
323
323
322
322
321
320
319
319
319
319

Wednesday 24

Waxing Crescent 7%

10:43

20:25

Sun - Rise: 07:49, Set: 19:52, Transit: 13:50. Moon - Rise: 10:43, Set: 20:25. Civil Dark: 20:24 - 07:17. Nautical Dark: 21:01 - 06:40. Astro Dark: 21:40 - 06:01

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: 18/09/25 02:48:12. Forecast: 18/09/25 to 24/09/25. Timezone: UTC+2.00