Clear Outside v1.0 - International Weather Forecasts For Astronomers

Wednesday 17

Waning Crescent 12%

02:40

18:26

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: 06:59, Set: 19:24, Transit: 13:11. Moon - Rise: 02:40, Set: 18:26. Civil Dark: 19:56 - 06:26. Nautical Dark: 20:35 - 05:47. Astro Dark: 21:16 - 05:06

Total Clouds (% Sky Obscured)

95
95
94
99
97
97
94
94
98
100
100
100
100
95
92
95
86
92
90
96
94
90
98
96

Low Clouds (% Sky Obscured)

93
79
94
89
93
95
91
88
96
100
100
100
84
77
80
89
76
84
77
84
85
80
88
85

Medium Clouds (% Sky Obscured)

42
40
50
59
37
29
41
27
25
0
5
2
2
20
39
25
26
21
25
19
12
0
31
20

High Clouds (% Sky Obscured)

1
0
0
2
20
10
39
13
46
81
71
24
30
53
72
65
75
84
75
89
69
82
76
73

ISS Passover

Visibility (miles)

0
4
4
4
4
6
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
0
0
0

Fog (%)

0
25
54
54
55
54
54
54
59
17
0
0
0
0
0
0
0
0
54
32
16
28
52
54

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
20
7
9
15
6
8
4
2
2
9
15
7
8
12
2
3
0
0
1
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
15
15
13
13
13
13
13
13
13
14
15
16
18
18
17
17
16
15
13
11
11
11
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

98
98
98
98
96
96
96
96
96
95
93
89
88
85
84
80
80
82
86
92
96
98
98
96

Pressure (mb)

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

Ozone (du)

268
268
267
266
266
266
265
265
263
263
262
261
261
261
261
261
260
258
258
259
259
258
258
258

Thursday 18

Waning Crescent 6%

04:00

18:41

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: 07:00, Set: 19:21, Transit: 13:11. Moon - Rise: 04:00, Set: 18:41. Civil Dark: 19:54 - 06:27. Nautical Dark: 20:33 - 05:49. Astro Dark: 21:13 - 05:08

Total Clouds (% Sky Obscured)

98
91
99
91
99
99
94
95
88
79
80
93
82
85
100
100
97
100
99
96
100
100
100
100

Low Clouds (% Sky Obscured)

87
79
80
83
80
93
84
85
85
78
78
78
82
84
83
83
75
68
66
62
67
75
73
74

Medium Clouds (% Sky Obscured)

17
4
2
2
6
17
2
2
2
3
2
26
36
43
22
15
22
33
57
15
1
27
16
40

High Clouds (% Sky Obscured)

78
72
90
61
94
80
80
78
49
30
36
87
38
13
67
83
46
46
42
38
63
81
99
100

ISS Passover

Visibility (miles)

7
9
7
5
1
1
1
1
2
1
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

52
48
0
1
1
2
1
0
68
5
7
0
0
0
0
0
0
0
0
0
3
54
67
68

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)

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

Chance of Frost

Temperature (°C)

15
15
15
15
14
14
14
14
14
14
15
16
17
17
18
18
18
18
17
16
14
14
13
13

Feels Like (°C)

14
14
14
14
13
14
14
13
13
14
14
15
15
16
16
17
16
18
17
17
15
14
13
13

Dew Point (°C)

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

Relative Humidity (%)

96
98
98
98
98
100
98
100
98
100
95
89
83
79
77
72
72
72
73
81
92
95
96
95

Pressure (mb)

1020
1020
1019
1019
1018
1018
1018
1018
1018
1018
1018
1017
1017
1017
1017
1017
1016
1016
1015
1015
1015
1015
1015
1015

Ozone (du)

259
259
259
260
261
263
262
264
263
265
265
265
265
265
265
265
266
268
269
271
271
271
271
272

Friday 19

Waning Crescent 2%

05:17

18:53

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: 07:02, Set: 19:19, Transit: 13:10. Moon - Rise: 05:17, Set: 18:53. Civil Dark: 19:52 - 06:29. Nautical Dark: 20:30 - 05:50. Astro Dark: 21:11 - 05:10

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
99
100
100
100
97
92
96
92
96
88
85
90
81
82
75

Low Clouds (% Sky Obscured)

77
81
86
87
77
82
81
82
93
83
92
77
81
82
82
89
92
96
84
84
82
74
72
65

Medium Clouds (% Sky Obscured)

36
69
0
37
47
51
64
60
83
71
95
82
78
21
53
56
26
39
11
27
31
29
26
17

High Clouds (% Sky Obscured)

100
100
100
100
100
98
100
100
100
94
100
100
100
81
8
4
2
2
3
0
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
6
4
9
9
9
9
9
9
9
9
9
9
0
9
9
9

Fog (%)

99
99
86
100
100
98
97
100
100
98
23
0
0
4
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
Light Rain
None
None
None
Very Light Rain
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
3
14
95
95
81
33
38
20
41
31
17
11
30
28
28
33
32

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
2.4
1.6
0.4
0
0
0
0.3
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

6
6
7
7
8
7
8
8
8
8
9
11
14
15
15
16
15
17
19
19
19
17
17
16

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

96
96
96
98
98
98
100
96
98
98
93
89
87
85
81
83
86
79
83
87
98
93
95
95

Pressure (mb)

1015
1014
1014
1013
1012
1011
1011
1010
1010
1010
1010
1009
1009
1008
1008
1007
1006
1006
1006
1007
1007
1008
1008
1008

Ozone (du)

272
272
272
272
272
272
272
272
273
275
274
274
275
275
274
274
273
275
280
284
288
290
290
291

Saturday 20

Waning Crescent 0%

06:31

19:04

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 OK
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad

Sun - Rise: 07:03, Set: 19:17, Transit: 13:10. Moon - Rise: 06:31, Set: 19:04. Civil Dark: 19:49 - 06:31. Nautical Dark: 20:28 - 05:52. Astro Dark: 21:08 - 05:12

Total Clouds (% Sky Obscured)

69
57
65
67
70
80
87
95
96
80
88
95
97
97
87
60
37
37
34
58
76
76
79
76

Low Clouds (% Sky Obscured)

58
49
53
57
61
70
78
86
88
80
87
83
79
73
69
56
37
37
34
46
56
55
53
51

Medium Clouds (% Sky Obscured)

9
0
0
0
0
15
33
45
53
56
60
53
46
35
20
9
0
0
0
0
0
0
32
46

High 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
1

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
7
8

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

Precipitation Probability (%)

33
26
28
29
30
40
37
44
50
57
66
61
56
50
39
28
10
11
12
11
17
28
25
32

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0.2
0.4
0.3
0.2
0.3
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

17
16
15
20
18
16
15
14
13
14
14
15
15
15
14
15
15
16
15
15
15
14
12
10

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

92
95
95
88
90
90
88
88
90
87
85
78
74
71
69
68
66
64
68
77
84
87
91
93

Pressure (mb)

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

Ozone (du)

293
296
298
299
302
304
308
311
313
313
314
315
314
312
312
314
315
316
320
323
323
322
322
322

Sunday 21

New Moon 1%

07:42

19:15

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 OK
22 OK

Sun - Rise: 07:05, Set: 19:15, Transit: 13:10. Moon - Rise: 07:42, Set: 19:15. Civil Dark: 19:47 - 06:32. Nautical Dark: 20:26 - 05:54. Astro Dark: 21:06 - 05:14

Total Clouds (% Sky Obscured)

77
70
75
70
65
50
45
35
30
30
25
29
45
53
64
73
78
71
70
63
46
28
11
20

Low Clouds (% Sky Obscured)

46
30
25
25
30
25
20
20
15
15
8
13
24
36
41
49
56
48
39
30
20
10
1
4

Medium Clouds (% Sky Obscured)

55
50
40
40
40
35
30
35
30
25
25
29
45
53
64
71
70
70
62
54
35
14
1
1

High Clouds (% Sky Obscured)

1
1
24
31
45
30
20
20
20
15
10
10
11
19
24
25
29
26
18
8
3
1
0
2

ISS Passover

Visibility (miles)

5
2
2
5
6
4
2
2
2
4
7
9
5
5
4
5
6
7
8
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
Light Rain
Light Rain
None
None
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

52
95
84
56
49
68
86
88
82
71
43
31
30
34
40
36
34
32
31
32
26
19
5
6

Precipitation Amount (mm)

0.3
1
0.5
0
0
0.4
0.7
0.7
0.5
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

93
93
93
88
87
91
93
95
93
91
90
88
87
84
86
82
76
73
77
83
90
90
90
90

Pressure (mb)

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

Ozone (du)

323
323
322
323
322
321
320
319
318
319
319
319
319
318
318
318
318
317
317
316
316
315
315
315

Monday 22

Waxing Crescent 3%

08:54

19:27

23 OK
00 OK
01 OK
02 OK
03 OK
04 Bad
05 Bad
06 OK
07 OK
08 OK
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

Sun - Rise: 07:06, Set: 19:12, Transit: 13:09. Moon - Rise: 08:54, Set: 19:27. Civil Dark: 19:45 - 06:34. Nautical Dark: 20:23 - 05:55. Astro Dark: 21:03 - 05:16

Total Clouds (% Sky Obscured)

29
34
33
32
32
40
44
44
44
44
42
41
40
38
54
69
88
86
83
81
73
65
57
56

Low Clouds (% Sky Obscured)

8
12
18
25
32
37
42
44
44
44
42
41
40
38
50
61
71
68
65
61
53
46
38
35

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
1
1
0
0
0
10
19
29
27
20
15
13
9
9
7

High Clouds (% Sky Obscured)

4
5
5
4
4
3
1
0
0
0
0
0
0
0
0
0
0
4
7
7
6
4
0
9

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 (%)

4
0
0
1
0
0
1
0
1
1
0
2
2
1
6
8
10
24
30
36
32
27
21
19

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

8
7
7
5
4
5
5
5
4
4
5
5
6
6
7
12
11
11
11
11
11
8
8
8

Dew Point (°C)

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

Relative Humidity (%)

90
90
90
90
90
88
88
87
84
78
73
67
63
60
56
62
69
76
79
83
87
88
90
93

Pressure (mb)

1022
1022
1023
1022
1022
1022
1022
1023
1023
1023
1023
1023
1023
1023
1022
1022
1022
1021
1022
1022
1022
1022
1022
1023

Ozone (du)

313
311
309
309
309
309
309
309
309
309
309
309
309
309
308
308
308
308
307
306
305
305
304
304

Tuesday 23

Waxing Crescent 7%

10:05

19:40

23 Bad
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 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad

Sun - Rise: 07:08, Set: 19:10, Transit: 13:09. Moon - Rise: 10:05, Set: 19:40. Civil Dark: 19:43 - 06:35. Nautical Dark: 20:21 - 05:57. Astro Dark: 21:01 - 05:17

Total Clouds (% Sky Obscured)

55
54
69
85
100
98
86
75
63
49
34
36
44
52
56
56
57
52
43
27

Low Clouds (% Sky Obscured)

33
31
20
10
0
0
0
0
0
0
0
12
25
39
56
56
57
52
43
27

Medium Clouds (% Sky Obscured)

4
2
1
1
0
9
18
27
19
15
14
19
34
46
56
56
40
25
16
12

High Clouds (% Sky Obscured)

18
27
49
72
90
73
47
30
18
9
2
13
26
52
56
56
57
50
25
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
None
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

17
3
6
6
1
2
1
0
2
2
1
2
1
0
34
58
78
82
86
89

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

4
4
4
4
4
4
4
4
4
4
4
4
6
8
10
10
11
11
10
9

Chance of Frost

Temperature (°C)

8
8
7
7
7
7
7
6
6
8
9
11
12
13
14
14
14
14
13
11

Feels Like (°C)

8
8
8
7
7
7
7
7
7
6
6
8
8
9
9
14
13
13
13
14

Dew Point (°C)

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

Relative Humidity (%)

91
90
87
85
85
84
85
87
88
84
78
73
67
62
58
56
55
53
60
67

Pressure (mb)

1023
1023
1023
1023
1023
1022
1022
1023
1023
1023
1023
1023
1023
1023
1023
1022
1021
1021
1021
1021

Ozone (du)

303
302
301
301
300
300
299
298
297
297
297
297
297
297
297
298
298
298
298
298

Forecast for Upton, Cornwall, United Kingdom (50.54,-4.42)

Generated: 17/09/25 23:27:30. Forecast: 17/09/25 to 23/09/25. Timezone: UTC+1.00