Clear Outside v1.0 - International Weather Forecasts For Astronomers

Wednesday 17

Waning Crescent 12%

02:46

18:29

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
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad

Sun - Rise: 07:03, Set: 19:28, Transit: 13:15. Moon - Rise: 02:46, Set: 18:29. Civil Dark: 20:00 - 06:30. Nautical Dark: 20:38 - 05:52. Astro Dark: 21:19 - 05:12

Total Clouds (% Sky Obscured)

99
97
98
94
95
87
95
92
88
83
95
100
98
98
95
88
91
89
100
99
100
100
100
100

Low Clouds (% Sky Obscured)

79
91
83
88
90
73
91
85
77
83
79
76
78
72
61
75
62
65
77
56
63
67
77
81

Medium Clouds (% Sky Obscured)

39
60
54
60
33
48
50
51
27
2
2
15
14
25
32
20
69
50
16
26
3
13
45
47

High Clouds (% Sky Obscured)

2
0
37
57
20
42
59
56
76
18
62
94
50
83
85
67
83
84
100
98
100
100
100
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 (%)

0
0
0
7
5
3
6
9
3
1
3
7
2
3
0
0
0
0
0
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)

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

Chance of Frost

Temperature (°C)

16
16
16
16
17
17
17
17
17
17
17
17
17
18
18
18
18
18
17
17
17
16
16
16

Feels Like (°C)

13
14
14
14
14
14
14
13
13
13
14
14
13
14
14
14
14
14
13
14
14
13
13
14

Dew Point (°C)

15
16
16
15
16
15
16
15
15
15
16
16
16
16
16
16
16
16
16
16
16
15
15
16

Relative Humidity (%)

95
96
95
93
93
92
93
92
92
90
93
93
90
89
88
86
88
89
90
92
93
93
93
95

Pressure (mb)

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

Ozone (du)

268
266
265
265
265
266
266
266
264
263
262
262
262
261
260
259
259
260
261
261
261
261
261
262

Thursday 18

Waning Crescent 6%

04:05

18:44

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 OK
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad

Sun - Rise: 07:04, Set: 19:25, Transit: 13:15. Moon - Rise: 04:05, Set: 18:44. Civil Dark: 19:58 - 06:32. Nautical Dark: 20:36 - 05:54. Astro Dark: 21:16 - 05:14

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
99
91
83
70
46
43
61
90
99
97
90
97
100
99
99
100
100

Low Clouds (% Sky Obscured)

81
85
91
95
92
90
88
84
71
60
32
35
39
48
33
32
61
61
75
82
61
58
76
83

Medium Clouds (% Sky Obscured)

20
11
31
32
28
29
6
7
13
4
12
5
34
2
2
84
44
45
64
75
2
0
63
56

High Clouds (% Sky Obscured)

97
100
99
66
100
100
100
92
73
79
70
35
8
22
73
90
66
34
75
100
88
82
100
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
60

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)

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

Chance of Frost

Temperature (°C)

16
16
16
16
16
16
16
16
16
16
16
17
17
18
18
18
18
18
17
17
16
16
16
16

Feels Like (°C)

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

Dew Point (°C)

16
15
15
15
15
15
15
15
15
15
15
15
14
14
14
14
14
14
15
15
15
15
15
15

Relative Humidity (%)

95
93
93
95
93
93
93
95
95
95
92
87
83
81
78
77
78
79
83
87
92
93
95
93

Pressure (mb)

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

Ozone (du)

263
264
264
264
265
265
266
266
268
269
270
271
271
270
270
270
271
272
273
273
274
274
273
273

Friday 19

Waning Crescent 2%

05:22

18:57

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
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad

Sun - Rise: 07:06, Set: 19:23, Transit: 13:15. Moon - Rise: 05:22, Set: 18:57. Civil Dark: 19:55 - 06:34. Nautical Dark: 20:34 - 05:55. Astro Dark: 21:14 - 05:15

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
86
82
94
89
88
83
85
91
72
75
80
70

Low Clouds (% Sky Obscured)

81
83
74
79
92
87
94
82
69
70
94
89
76
71
88
89
88
83
73
86
72
69
60
60

Medium Clouds (% Sky Obscured)

26
84
91
75
80
49
55
59
61
59
59
82
33
71
69
18
16
23
35
34
46
54
60
42

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
96
97
100
100
100
55
60
56
3
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
6
9
9
9
9
9
9
9
9
9
9

Fog (%)

95
100
98
21
1
2
55
86
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

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

Precipitation Probability (%)

0
0
0
3
4
10
28
83
95
85
42
35
62
60
17
22
32
43
65
57
34
50
51
46

Precipitation Amount (mm)

0
0
0
0
0
0
0
0.6
0.5
0.3
0
0
0
0.3
0
0
0
0
0.2
0
0
0
0
0

Wind Speed/Direction (mph)

11
12
11
11
11
12
12
12
11
14
13
14
15
15
16
19
26
25
25
25
24
22
20
17

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

15
15
15
15
15
15
15
15
15
15
15
16
15
15
15
13
12
12
13
13
13
13
13
13

Relative Humidity (%)

93
93
93
93
93
93
93
95
95
95
95
95
92
92
89
83
82
82
86
92
90
93
93
93

Pressure (mb)

1014
1013
1013
1012
1011
1011
1010
1009
1009
1008
1008
1008
1008
1007
1007
1007
1007
1007
1007
1008
1008
1008
1008
1008

Ozone (du)

273
273
274
274
274
274
276
276
277
277
279
280
278
277
278
280
282
285
289
293
295
297
299
302

Saturday 20

Waning Crescent 0%

06:35

19:09

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
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad

Sun - Rise: 07:07, Set: 19:21, Transit: 13:14. Moon - Rise: 06:35, Set: 19:09. Civil Dark: 19:53 - 06:35. Nautical Dark: 20:31 - 05:57. Astro Dark: 21:11 - 05:17

Total Clouds (% Sky Obscured)

64
71
74
76
80
87
93
100
93
98
90
94
90
88
87
85
72
85
86
88
82
71
64
72

Low Clouds (% Sky Obscured)

59
59
61
64
66
77
89
100
81
63
45
39
33
25
43
58
64
73
72
68
63
46
44
44

Medium Clouds (% Sky Obscured)

22
0
1
3
4
26
38
45
39
38
32
26
20
18
18
15
10
13
39
61
51
14
28
70

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
47
48
52
49
33
24

ISS Passover

Visibility (miles)

9
9
6
7
8
9
9
5
9
9
9
9
9
9
9
9
9
9
9
7
4
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
Very Light Rain
None
None
None
None
None
Very Light Rain
Light Rain
Light Rain
Very Light Rain
None
None
None
None
None
None
Very Light Rain
Light Rain
Very Light Rain
None
Very Light Rain
None

Precipitation Probability (%)

38
43
43
41
38
48
49
53
56
64
67
52
42
33
29
30
37
45
59
71
53
39
43
39

Precipitation Amount (mm)

0
0
0.2
0
0
0
0
0
0.2
0.4
0.5
0.2
0
0
0
0
0
0
0.3
0.6
0.2
0
0.2
0

Wind Speed/Direction (mph)

17
24
24
23
23
23
23
23
23
22
21
20
20
19
19
20
21
23
24
21
19
18
18
17

Chance of Frost

Temperature (°C)

13
13
13
13
13
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
13

Feels Like (°C)

12
6
5
6
6
6
6
6
5
5
6
6
5
6
6
6
5
4
3
7
10
10
10
11

Dew Point (°C)

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

Relative Humidity (%)

95
92
87
87
83
81
84
84
83
81
79
77
79
79
79
75
75
77
84
89
86
86
83
84

Pressure (mb)

1008
1009
1010
1010
1010
1011
1011
1011
1012
1013
1014
1014
1015
1015
1015
1015
1015
1014
1014
1013
1013
1013
1013
1013

Ozone (du)

305
308
311
311
313
316
316
317
317
317
318
319
321
322
323
324
324
324
322
321
323
324
326
325

Sunday 21

New Moon 1%

07:47

19:20

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
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad

Sun - Rise: 07:09, Set: 19:19, Transit: 13:14. Moon - Rise: 07:47, Set: 19:20. Civil Dark: 19:51 - 06:37. Nautical Dark: 20:29 - 05:59. Astro Dark: 21:09 - 05:19

Total Clouds (% Sky Obscured)

77
82
79
78
77
73
68
61
63
62
64
63
64
61
55
49
46
34
23
14
25
33
41
36

Low Clouds (% Sky Obscured)

49
52
56
60
67
62
58
56
58
59
61
58
50
43
36
31
26
17
9
0
1
3
7
6

Medium Clouds (% Sky Obscured)

25
22
14
7
1
3
5
30
28
28
59
63
64
61
55
49
46
34
23
11
16
23
31
22

High Clouds (% Sky Obscured)

9
0
0
0
0
0
3
10
14
15
10
20
35
45
42
35
21
19
10
3
2
1
0
1

ISS Passover

Visibility (miles)

6
7
8
9
9
9
6
3
2
2
2
3
3
9
9
8
7
5
5
6
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
None
None
None
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

43
42
40
40
39
53
68
76
92
95
84
81
58
45
49
44
39
37
37
40
35
30
28
25

Precipitation Amount (mm)

0
0
0
0
0
0
0.4
0.5
0.9
0.9
0.6
0.6
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

16
17
18
19
20
15
17
20
23
21
20
20
18
16
16
16
15
15
15
15
15
14
13
13

Chance of Frost

Temperature (°C)

13
13
13
13
12
13
13
13
13
13
13
13
13
13
14
14
14
14
14
14
14
13
13
13

Feels Like (°C)

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

Dew Point (°C)

11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
10
11
11
11
11
11
11
10
10

Relative Humidity (%)

87
87
87
92
92
89
90
92
92
90
90
90
86
83
80
79
79
79
80
82
83
84
83
81

Pressure (mb)

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

Ozone (du)

324
325
327
327
326
325
324
322
321
320
318
316
314
314
315
316
317
318
318
318
318
317
316
316

Monday 22

Waxing Crescent 3%

08:57

19:32

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

Sun - Rise: 07:10, Set: 19:16, Transit: 13:13. Moon - Rise: 08:57, Set: 19:32. Civil Dark: 19:49 - 06:38. Nautical Dark: 20:27 - 06:00. Astro Dark: 21:06 - 05:21

Total Clouds (% Sky Obscured)

29
20
21
18
15
13
16
28
13
6
1
18
40
63
60
53
47
49
51
53
41
28
16
44

Low Clouds (% Sky Obscured)

4
3
4
4
3
7
12
17
11
5
0
18
38
53
50
47
40
45
49
53
41
28
16
11

Medium Clouds (% Sky Obscured)

11
0
0
0
0
0
0
0
0
0
0
0
0
0
5
10
16
8
2
0
0
0
1
10

High Clouds (% Sky Obscured)

2
7
10
10
10
7
5
0
0
0
0
0
0
0
0
0
1
11
27
35
25
15
5
33

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 (%)

18
4
7
6
0
1
1
1
1
2
1
3
4
2
6
8
8
14
17
18
18
18
17
15

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)

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

Chance of Frost

Temperature (°C)

13
12
12
12
12
12
12
12
12
12
12
13
13
13
14
14
14
14
13
13
13
13
13
13

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

81
80
80
79
79
77
76
73
70
66
64
60
62
63
65
69
72
76
78
80
83
83
80
80

Pressure (mb)

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

Ozone (du)

314
313
311
311
310
309
309
309
308
308
308
308
308
308
308
307
306
305
304
304
303
303
302
302

Tuesday 23

Waxing Crescent 7%

10:09

19:46

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

Sun - Rise: 07:12, Set: 19:14, Transit: 13:13. Moon - Rise: 10:09, Set: 19:46. Civil Dark: 19:46 - 06:40. Nautical Dark: 20:24 - 06:02. Astro Dark: 21:04 - 05:22

Total Clouds (% Sky Obscured)

72
95
81
68
40
25
22
23
20
16
20
20
19
24
26
42
57
64
65
67

Low Clouds (% Sky Obscured)

7
1
1
0
0
1
1
2
1
1
1
16
19
24
26
42
57
64
65
67

Medium Clouds (% Sky Obscured)

24
35
33
30
32
25
22
23
20
16
20
20
19
24
26
42
26
20
18
16

High Clouds (% Sky Obscured)

67
95
77
54
29
22
15
9
6
3
1
20
19
24
26
42
51
31
15
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

Fog (%)

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
Very Light Rain
Light Rain
Light Rain
Light Rain
None
None

Precipitation Probability (%)

13
9
10
9
7
9
10
10
10
8
2
11
19
28
57
73
87
74
54
26

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.4
0.5
0.4
0
0

Wind Speed/Direction (mph)

10
7
6
5
4
4
4
4
5
6
7
9
11
12
14
15
16
17
12
13

Chance of Frost

Temperature (°C)

13
13
12
12
12
12
12
11
11
12
12
13
13
14
14
14
14
14
14
14

Feels Like (°C)

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

Dew Point (°C)

10
9
9
8
8
8
8
7
7
7
6
6
6
6
6
7
7
7
7
8

Relative Humidity (%)

80
79
77
77
77
76
76
76
76
71
66
63
62
60
59
60
62
63
65
68

Pressure (mb)

1023
1023
1023
1022
1022
1022
1022
1022
1022
1022
1022
1023
1022
1022
1022
1021
1021
1020
1020
1021

Ozone (du)

301
300
299
299
298
297
297
298
298
297
297
296
297
298
298
298
298
298
298
298

Forecast for Marazion, Cornwall, United Kingdom (50.13,-5.46)

Generated: 17/09/25 23:36:46. Forecast: 17/09/25 to 23/09/25. Timezone: UTC+1.00