Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 18

Waning Crescent 12%

04:02

18:26

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

Sun - Rise: 07:01, Set: 19:25, Transit: 13:12. Moon - Rise: 04:02, Set: 18:26. Civil Dark: 19:57 - 06:29. Nautical Dark: 20:36 - 05:50. Astro Dark: 21:16 - 05:10

Total Clouds (% Sky Obscured)

85
90
92
99
85
100
100
97
96
95
93
95
94
96
90
92
90
98
100
82
85
81
80
80

Low Clouds (% Sky Obscured)

78
80
83
81
81
74
74
64
83
83
80
82
84
85
80
79
71
78
83
77
84
79
78
77

Medium Clouds (% Sky Obscured)

2
16
11
4
21
14
32
1
4
9
23
33
61
38
31
32
11
32
5
4
23
61
41
3

High Clouds (% Sky Obscured)

28
11
23
80
85
100
92
96
77
79
65
29
7
29
17
55
34
70
100
58
50
52
60
60

ISS Passover

Visibility (miles)

9
6
6
6
6
6
9
9
9
8
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
36
27
36
36
36
27
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
2
8
4
6
4
7
0
0
0
3
8
4
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)

16
17
18
18
18
16
16
13
12
11
11
11
11
12
11
11
10
10
9
9
9
8
10
12

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

83
78
76
76
76
80
84
89
95
98
98
98
98
96
98
98
98
98
98
96
98
98
93
86

Pressure (mb)

1020
1020
1020
1020
1020
1020
1019
1019
1020
1020
1020
1020
1020
1020
1020
1019
1019
1018
1018
1018
1018
1017
1017
1017

Ozone (du)

263
263
263
262
260
261
261
261
261
261
261
261
260
260
262
264
265
263
262
262
263
265
267
269

Friday 19

Waning Crescent 6%

05:18

18:42

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

Sun - Rise: 07:03, Set: 19:23, Transit: 13:12. Moon - Rise: 05:18, Set: 18:42. Civil Dark: 19:55 - 06:30. Nautical Dark: 20:34 - 05:52. Astro Dark: 21:14 - 05:12

Total Clouds (% Sky Obscured)

100
99
65
44
45
78
99
99
97
96
100
100
100
97
100
100
100
100
100
100
99
100
100
100

Low Clouds (% Sky Obscured)

81
75
58
39
25
28
27
48
47
58
74
79
79
84
84
84
80
87
82
80
76
77
72
79

Medium Clouds (% Sky Obscured)

6
3
3
2
0
0
0
0
0
4
0
52
43
37
73
82
79
49
80
95
75
80
87
92

High Clouds (% Sky Obscured)

100
95
15
9
29
71
91
92
74
65
98
100
100
85
100
100
98
100
100
93
85
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
23
40
93
44
38
74
30
34
43
100
36
2
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
Light Rain
Light Rain

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
1
1
5
4
5
6
4
15
21
34
68
95
95

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
1.2
1.1

Wind Speed/Direction (mph)

13
14
14
14
13
12
11
9
7
7
8
8
8
8
8
8
8
9
8
8
8
9
10
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

79
73
70
71
72
73
78
83
92
93
95
96
96
96
96
96
98
96
98
98
98
98
93
89

Pressure (mb)

1017
1017
1017
1017
1016
1016
1015
1015
1015
1015
1015
1015
1015
1014
1014
1013
1012
1012
1011
1010
1010
1010
1009
1009

Ozone (du)

270
272
273
273
273
272
272
273
274
273
274
273
272
273
273
272
271
273
273
273
274
275
275
275

Saturday 20

Waning Crescent 2%

06:32

18:54

11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 OK
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

Sun - Rise: 07:04, Set: 19:20, Transit: 13:12. Moon - Rise: 06:32, Set: 18:54. Civil Dark: 19:53 - 06:32. Nautical Dark: 20:31 - 05:54. Astro Dark: 21:11 - 05:14

Total Clouds (% Sky Obscured)

100
96
100
100
75
38
49
51
37
50
57
57
47
45
48
65
78
99
82
80
77
74
65
76

Low Clouds (% Sky Obscured)

94
93
100
100
66
24
45
51
37
46
55
54
47
45
48
54
66
52
53
60
58
58
52
54

Medium Clouds (% Sky Obscured)

100
87
78
54
28
17
0
0
0
0
0
0
0
0
0
14
16
40
26
28
23
21
21
30

High Clouds (% Sky Obscured)

64
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
20

ISS Passover

Visibility (miles)

9
9
6
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
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

95
84
72
30
26
4
7
14
7
26
28
26
10
23
25
28
20
24
39
35
43
35
24
30

Precipitation Amount (mm)

1.1
0.6
0.4
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
13
15
18
19
20
21
19
17
17
20
22
21
19
20
19
18
15
14
15
16
16
16
19

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

14
14
13
10
10
9
9
9
9
9
6
6
6
7
6
6
6
7
7
7
7
7
7
7

Dew Point (°C)

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

Relative Humidity (%)

87
85
90
96
90
89
83
86
87
90
84
84
84
84
86
83
81
81
84
88
87
86
83
84

Pressure (mb)

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

Ozone (du)

275
275
275
282
288
290
292
292
295
298
302
307
310
312
313
311
311
311
312
314
317
320
322
321

Sunday 21

New Moon 0%

07:44

19:06

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

Sun - Rise: 07:06, Set: 19:18, Transit: 13:11. Moon - Rise: 07:44, Set: 19:06. Civil Dark: 19:50 - 06:34. Nautical Dark: 20:29 - 05:55. Astro Dark: 21:09 - 05:15

Total Clouds (% Sky Obscured)

86
94
97
98
100
99
99
98
90
82
72
70
73
72
75
78
83
75
65
50
55
60
60
63

Low Clouds (% Sky Obscured)

54
54
44
39
34
26
18
15
10
15
20
29
37
49
42
40
43
42
41
40
35
30
25
26

Medium Clouds (% Sky Obscured)

40
67
71
86
100
99
95
77
90
82
48
22
47
72
75
78
83
75
65
50
55
47
35
24

High Clouds (% Sky Obscured)

43
60
60
65
41
61
30
52
65
65
65
51
32
52
70
76
74
56
65
24
55
60
41
15

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

30
20
40
45
49
59
57
45
44
45
40
40
40
25
26
30
32
36
32
30
21
23
24
30

Precipitation Amount (mm)

0
0
0
0
0
0.3
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

19
21
20
19
17
16
17
17
17
16
16
16
15
15
15
15
14
15
15
15
15
16
17
19

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

6
5
6
7
9
9
7
7
6
6
6
5
5
5
5
4
5
5
4
4
3
4
4
4

Dew Point (°C)

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

Relative Humidity (%)

80
77
83
93
96
93
92
88
87
87
87
84
84
84
85
87
88
91
93
93
91
88
88
87

Pressure (mb)

1012
1012
1013
1013
1012
1012
1013
1013
1014
1015
1015
1016
1016
1016
1016
1016
1016
1016
1017
1017
1018
1018
1019
1019

Ozone (du)

319
317
316
315
314
312
312
312
313
314
314
314
315
315
317
317
317
317
318
320
320
320
319
318

Monday 22

Waxing Crescent 1%

08:55

19:17

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

Sun - Rise: 07:08, Set: 19:16, Transit: 13:11. Moon - Rise: 08:55, Set: 19:17. Civil Dark: 19:48 - 06:35. Nautical Dark: 20:27 - 05:57. Astro Dark: 21:06 - 05:17

Total Clouds (% Sky Obscured)

62
61
54
42
33
25
15
10
17
19
22
23
24
25
18
12
5
4
4
4
5
5
8
9

Low Clouds (% Sky Obscured)

28
30
25
21
20
21
9
8
7
3
1
1
0
0
1
3
4
3
1
0
0
0
0
3

Medium Clouds (% Sky Obscured)

4
3
3
2
3
0
0
0
3
6
10
10
9
8
4
2
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

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

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 (%)

34
22
9
9
4
5
5
4
3
2
0
1
1
0
1
1
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
17
18
17
16
14
13
12
11
10
10
9
8
7
7
7
7
6
6
7
8
9

Chance of Frost

Temperature (°C)

11
11
12
12
12
13
13
12
12
11
11
10
10
9
9
9
8
8
8
8
7
9
10
11

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

91
91
90
89
87
83
79
77
76
75
74
76
77
78
78
81
82
85
84
84
82
77
71
66

Pressure (mb)

1019
1019
1019
1019
1020
1020
1020
1020
1021
1021
1022
1022
1022
1023
1023
1023
1023
1023
1023
1023
1023
1023
1024
1024

Ozone (du)

317
316
316
316
314
313
312
311
310
310
309
308
308
307
306
305
304
304
304
303
303
303
303
303

Tuesday 23

Waxing Crescent 3%

10:06

19:29

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

Sun - Rise: 07:09, Set: 19:14, Transit: 13:11. Moon - Rise: 10:06, Set: 19:29. Civil Dark: 19:46 - 06:37. Nautical Dark: 20:24 - 05:59. Astro Dark: 21:04 - 05:19

Total Clouds (% Sky Obscured)

9
11
16
32
46
47
45
43
40
36
31
36
40
45
58
74
88
93
98
100
100
100
100
99

Low Clouds (% Sky Obscured)

5
7
16
29
41
35
30
23
15
8
0
0
0
0
16
32
48
42
36
30
36
43
49
49

Medium Clouds (% Sky Obscured)

0
0
6
10
10
8
7
6
12
19
25
22
21
20
25
27
31
27
18
14
14
15
15
15

High Clouds (% Sky Obscured)

7
10
16
32
46
43
18
0
0
0
0
0
0
0
1
1
2
20
42
67
73
84
90
66

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
9
13
15
12
9
7
14
16
16
15
13
5
8
10
7
28
36
42
40

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

7
7
9
12
12
12
12
13
13
9
9
9
9
9
9
9
9
9
10
11
11
10
9
9

Dew Point (°C)

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

Relative Humidity (%)

62
59
56
58
59
61
69
77
84
87
90
93
93
93
95
95
95
95
95
93
91
84
76
68

Pressure (mb)

1024
1024
1024
1024
1023
1023
1023
1023
1024
1024
1024
1024
1024
1024
1024
1024
1024
1024
1024
1024
1024
1025
1025
1025

Ozone (du)

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

Wednesday 24

Waxing Crescent 7%

No Rise

19:42

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
05 Bad
06 Bad

Sun - Rise: 07:11, Set: 19:11, Transit: 13:10. Moon - Rise: No Rise, Set: 19:42. Civil Dark: 19:44 - 06:38. Nautical Dark: 20:22 - 06:00. Astro Dark: 21:01 - 05:21

Total Clouds (% Sky Obscured)

98
97
97
96
91
76
63
65
57
51
47
46
44
46
56
75
87
77
66
57

Low Clouds (% Sky Obscured)

49
47
43
43
44
43
41
39
52
51
47
46
44
46
56
54
45
51
58
57

Medium Clouds (% Sky Obscured)

24
23
27
26
25
25
22
23
23
27
36
42
44
46
56
62
38
23
18
17

High Clouds (% Sky Obscured)

44
18
23
28
32
21
11
1
26
51
47
46
44
46
56
75
87
77
66
57

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
None
None
None
None
None
None

Precipitation Probability (%)

40
43
36
26
14
21
20
14
18
16
10
9
13
15
23
28
31
28
24
17

Precipitation Amount (mm)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

64
59
54
57
60
61
68
72
80
81
85
87
85
85
84
84
83
81
80
78

Pressure (mb)

1025
1025
1025
1025
1025
1025
1025
1025
1025
1026
1026
1026
1026
1026
1026
1026
1026
1026
1026
1026

Ozone (du)

299
298
298
297
296
295
295
295
294
294
295
295
294
294
294
294
295
295
295
296

Forecast for Saint Blazey, Cornwall, United Kingdom (50.36,-4.74)

Generated: 18/09/25 11:11:28. Forecast: 18/09/25 to 24/09/25. Timezone: UTC+1.00