Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 18

Waning Crescent 6%

04:05

18:29

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
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad

Sun - Rise: 07:04, Set: 19:28, Transit: 13:15. Moon - Rise: 04:05, Set: 18:29. Civil Dark: 20:00 - 06:32. Nautical Dark: 20:38 - 05:54. Astro Dark: 21:19 - 05:14

Total Clouds (% Sky Obscured)

85
100
100
100
100
100
100
100
100
100
99
93
98
100
97
100
100
98
96
94
99
92
99
99

Low Clouds (% Sky Obscured)

60
80
76
74
69
57
61
73
75
80
76
86
84
96
85
81
78
80
61
40
35
42
62
75

Medium Clouds (% Sky Obscured)

2
0
0
2
1
0
0
1
10
24
11
15
2
16
19
43
48
76
15
34
53
22
41
67

High Clouds (% Sky Obscured)

31
23
50
100
56
77
73
82
86
81
30
38
71
89
89
99
100
97
95
93
76
66
99
72

ISS Passover

Visibility (miles)

-
-
-
-
-
-
-
-
-
-
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
1
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
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)

19
19
18
19
18
16
16
16
15
15
15
16
16
17
17
16
15
14
14
14
15
16
17
17

Chance of Frost

Temperature (°C)

17
17
17
17
17
17
16
16
16
16
16
16
16
16
16
16
16
16
16
15
15
16
16
17

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

96
96
95
95
94
95
96
95
95
94
95
95
95
93
95
93
93
93
93
95
93
89
85
85

Pressure (mb)

1019
1019
1019
1019
1019
1019
1018
1019
1019
1019
1019
1019
1019
1018
1018
1018
1017
1017
1016
1016
1016
1016
1016
1016

Ozone (du)

260
259
264
264
264
263
263
262
262
262
263
263
264
265
263
262
261
260
261
263
265
267
268
268

Friday 19

Waning Crescent 6%

05:22

18:44

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
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad

Sun - Rise: 07:06, Set: 19:25, Transit: 13:15. Moon - Rise: 05:22, Set: 18:44. Civil Dark: 19:58 - 06:34. Nautical Dark: 20:36 - 05:55. Astro Dark: 21:16 - 05:15

Total Clouds (% Sky Obscured)

100
100
99
100
99
96
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
97

Low Clouds (% Sky Obscured)

71
69
91
75
89
89
84
91
89
93
85
88
100
100
100
68
77
83
90
91
100
100
100
96

Medium Clouds (% Sky Obscured)

12
18
43
42
31
31
30
27
18
35
40
70
69
83
100
100
99
100
85
72
95
82
89
93

High Clouds (% Sky Obscured)

98
92
88
99
98
80
100
100
100
99
63
81
100
100
100
100
100
100
100
100
90
31
0
50

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
5
3
3
4
8
1
2
9
9
8
9
2

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
9
70
69
65
14
1
0
0

Precipitation Type

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

Precipitation Probability (%)

0
0
0
6
2
4
4
2
4
9
16
33
82
93
95
95
95
95
76
50
46
50
95
95

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0.6
0.6
0.4
4.4
1.4
1.2
0.2
0
0
0
0.8
1.4

Wind Speed/Direction (mph)

17
17
17
16
16
14
13
11
9
9
11
13
15
13
10
6
4
5
7
8
10
12
17
19

Chance of Frost

Temperature (°C)

17
17
18
18
17
17
17
16
16
16
16
16
16
16
16
16
16
16
15
15
15
15
14
14

Feels Like (°C)

14
14
15
15
15
15
15
16
15
15
16
16
16
16
16
15
14
14
15
15
15
14
11
10

Dew Point (°C)

15
15
15
15
15
15
15
16
15
15
16
16
16
16
16
16
15
15
15
14
14
14
13
12

Relative Humidity (%)

83
85
86
86
86
89
90
95
95
95
96
96
96
96
98
98
96
98
96
96
95
95
93
92

Pressure (mb)

1016
1016
1015
1015
1015
1015
1015
1014
1014
1014
1014
1014
1013
1012
1012
1011
1010
1010
1010
1009
1010
1010
1010
1010

Ozone (du)

269
269
267
268
270
271
272
272
272
270
272
272
272
273
272
273
274
274
274
277
278
279
281
283

Saturday 20

Waning Crescent 2%

06:35

18:57

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
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad

Sun - Rise: 07:07, Set: 19:23, Transit: 13:15. Moon - Rise: 06:35, Set: 18:57. Civil Dark: 19:55 - 06:35. Nautical Dark: 20:34 - 05:57. Astro Dark: 21:14 - 05:17

Total Clouds (% Sky Obscured)

100
67
62
79
45
40
21
68
77
73
75
79
69
67
63
64
59
83
89
100
89
89
87
70

Low Clouds (% Sky Obscured)

62
41
6
78
43
37
19
45
66
69
69
69
64
43
58
60
57
67
68
96
68
62
51
55

Medium Clouds (% Sky Obscured)

99
60
48
40
14
25
9
38
42
32
35
32
21
24
0
0
0
22
37
55
39
39
38
13

High Clouds (% Sky Obscured)

50
0
0
0
0
28
0
3
11
1
0
0
0
0
0
0
0
0
0
0
0
0
0
3

ISS Passover

Visibility (miles)

2
5
9
7
9
9
7
7
7
5
9
9
4
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
Very Light Rain
None
None
None
None
None
None
Very Light Rain
Very Light Rain
None
Light Rain
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

95
65
41
32
12
24
35
49
61
65
59
59
29
26
21
13
27
29
28
36
37
33
33
22

Precipitation Amount (mm)

1.6
0.3
0
0
0
0
0
0
0.3
0.3
0
0.4
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

93
92
86
75
75
69
75
80
87
90
86
87
87
84
84
79
77
76
75
71
68
62
59
57

Pressure (mb)

1010
1011
1011
1011
1012
1012
1012
1012
1013
1013
1013
1013
1013
1013
1014
1014
1014
1015
1015
1015
1016
1017
1017
1018

Ozone (du)

287
292
297
300
315
316
317
317
317
320
318
319
320
320
319
320
320
321
321
320
319
320
321
321

Sunday 21

New Moon 0%

07:47

19:09

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

Sun - Rise: 07:09, Set: 19:21, Transit: 13:14. Moon - Rise: 07:47, Set: 19:09. Civil Dark: 19:53 - 06:37. Nautical Dark: 20:31 - 05:59. Astro Dark: 21:11 - 05:19

Total Clouds (% Sky Obscured)

39
35
37
60
80
73
54
63
69
76
71
67
68
44
35
20
20
4
39
45
40
29
7
3

Low Clouds (% Sky Obscured)

38
35
26
53
57
47
30
42
53
65
63
62
60
43
25
8
5
3
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

0
0
0
36
79
39
41
10
7
3
2
1
1
1
0
0
0
0
0
0
0
3
3
2

High Clouds (% Sky Obscured)

3
3
2
3
18
40
54
45
50
50
47
3
2
0
0
0
0
0
39
45
35
28
6
3

ISS Passover

Visibility (miles)

9
9
9
7
3
5
4
7
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
Light Rain
Light Rain
Light Rain
Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

16
28
66
95
95
95
95
57
56
47
39
29
38
21
27
23
17
10
1
2
4
0
0
2

Precipitation Amount (mm)

0
0
0
1.1
1.1
1.2
0.9
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

16
15
16
20
17
18
24
22
23
23
23
22
21
20
19
18
17
16
15
15
16
16
17
18

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

11
13
12
8
9
9
6
7
6
6
6
6
6
6
7
7
7
7
7
6
6
6
6
7

Dew Point (°C)

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

Relative Humidity (%)

57
56
57
76
92
92
83
80
79
77
79
80
77
76
72
72
75
76
76
76
73
69
66
64

Pressure (mb)

1018
1018
1019
1019
1019
1020
1020
1021
1022
1022
1023
1023
1024
1024
1024
1024
1024
1025
1025
1025
1026
1027
1027
1027

Ozone (du)

322
323
323
323
323
324
324
324
324
324
323
322
321
322
324
325
323
321
319
317
316
314
312
311

Monday 22

Waxing Crescent 1%

08:57

19:20

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

Sun - Rise: 07:10, Set: 19:19, Transit: 13:14. Moon - Rise: 08:57, Set: 19:20. Civil Dark: 19:51 - 06:38. Nautical Dark: 20:29 - 06:00. Astro Dark: 21:09 - 05:21

Total Clouds (% Sky Obscured)

3
4
4
6
15
21
22
14
9
1
1
4
3
2
0
0
0
0
5
5
5
4
27
47

Low Clouds (% Sky Obscured)

0
2
4
6
14
21
22
14
9
0
1
1
1
1
0
0
0
0
0
0
0
0
14
32

Medium Clouds (% Sky Obscured)

3
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3
3
3
3
14
26

High Clouds (% Sky Obscured)

2
1
0
0
3
3
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
27
43

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
1
1
0
0
0
0
1
0
0
0
1
0
1
3
0
0
0
0
0
0
0
0
1

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)

18
18
18
19
19
18
18
17
15
14
13
12
12
12
12
11
11
12
12
13
14
14
15
15

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

8
8
8
8
8
8
8
9
9
10
9
10
9
9
9
9
9
9
8
8
8
9
9
10

Dew Point (°C)

6
6
6
6
6
6
6
5
5
5
5
5
6
6
6
6
5
6
5
6
6
6
5
5

Relative Humidity (%)

63
62
60
59
60
60
60
58
58
59
59
61
64
65
67
68
67
68
68
69
70
66
63
60

Pressure (mb)

1027
1027
1027
1027
1027
1027
1027
1028
1028
1028
1028
1028
1028
1028
1028
1028
1027
1027
1027
1028
1028
1028
1028
1028

Ozone (du)

310
309
308
308
307
307
306
305
305
305
304
303
302
301
301
301
300
300
300
300
300
301
300
301

Tuesday 23

Waxing Crescent 3%

10:09

19:32

12 Bad
13 Bad
14 Bad
15 OK
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
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad

Sun - Rise: 07:12, Set: 19:16, Transit: 13:13. Moon - Rise: 10:09, Set: 19:32. Civil Dark: 19:49 - 06:40. Nautical Dark: 20:27 - 06:02. Astro Dark: 21:06 - 05:22

Total Clouds (% Sky Obscured)

69
53
38
21
37
52
59
53
55
54
49
48
52
49
54
60
73
73
55
72
76
75
80
90

Low Clouds (% Sky Obscured)

51
40
26
13
16
20
24
23
23
22
24
29
26
26
32
38
37
33
30
28
29
26
36
46

Medium Clouds (% Sky Obscured)

32
24
14
6
8
13
24
33
33
33
43
48
52
49
44
37
25
23
20
18
16
21
29
34

High Clouds (% Sky Obscured)

55
31
13
2
8
27
58
53
55
54
49
48
24
35
47
57
53
40
31
29
32
45
70
75

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
Very Light Rain
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
7
11
13
12
11
12
13
12
7
22
29
33
33
41
52
46
37
29
27
22
8
13
12

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

10
10
10
11
11
11
11
11
10
10
10
10
10
10
9
10
10
11
11
11
10
10
10
10

Dew Point (°C)

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

Relative Humidity (%)

59
61
61
62
62
62
63
64
64
64
65
65
66
68
68
70
70
71
72
71
72
72
72
69

Pressure (mb)

1027
1027
1027
1027
1026
1026
1026
1026
1026
1026
1026
1026
1026
1026
1026
1025
1025
1025
1025
1025
1025
1025
1025
1025

Ozone (du)

301
300
300
301
301
301
301
301
301
301
301
301
301
300
301
301
302
302
302
302
301
300
300
300

Wednesday 24

Waxing Crescent 7%

11:20

19:46

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
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad

Sun - Rise: 07:13, Set: 19:14, Transit: 13:13. Moon - Rise: 11:20, Set: 19:46. Civil Dark: 19:46 - 06:41. Nautical Dark: 20:24 - 06:03. Astro Dark: 21:04 - 05:24

Total Clouds (% Sky Obscured)

95
100
100
100
100
100
100
98
96
95
96
98
100
100
100
100
100
99
99
97
96
94
70
46

Low Clouds (% Sky Obscured)

52
51
50
46
38
31
23
44
65
86
88
82
65
64
70
80
60
40
21
34
46
58
53
46

Medium Clouds (% Sky Obscured)

40
40
45
45
33
18
17
17
12
20
26
33
35
35
35
40
53
37
36
39
46
49
50
46

High Clouds (% Sky Obscured)

85
90
85
85
78
81
92
88
79
67
77
88
100
100
100
100
72
45
22
23
19
19
17
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 (%)

13
12
13
17
15
13
9
12
22
27
28
29
32
27
23
18
18
16
14
14
14
10
16
31

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
11
12
13
14
14
13
12
11
11
11
10
9
8
8
8
8
8
8
8
9
9
10
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

10
10
13
13
14
13
14
13
9
10
9
9
9
9
9
9
10
10
10
11
8
8
8
8

Dew Point (°C)

8
8
8
7
8
7
7
7
7
7
7
7
7
7
7
6
6
7
7
8
8
8
8
8

Relative Humidity (%)

67
63
64
63
64
65
66
69
70
71
72
72
72
72
70
65
63
67
71
76
73
72
70
67

Pressure (mb)

1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1026
1026
1025
1025
1025
1025
1025
1024
1024
1024
1024
1024
1024
1024

Ozone (du)

301
302
302
302
303
301
300
299
299
300
300
301
301
302
302
302
302
302
301
301
301
300
299
299

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

Generated: 18/09/25 22:14:28. Forecast: 18/09/25 to 24/09/25. Timezone: UTC+1.00