Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 19

Waning Crescent 6%

04:03

18:43

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: 07:03, Set: 19:24, Transit: 13:13. Moon - Rise: 04:03, Set: 18:43. Civil Dark: 19:56 - 06:30. Nautical Dark: 20:35 - 05:51. Astro Dark: 21:15 - 05:11

Total Clouds (% Sky Obscured)

82
86
90
90
95
96
97
98
97
71
100
96
99
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

82
84
85
90
85
82
82
68
54
40
47
40
46
71
80
77
69
69
75
52
78
81
77
80

Medium Clouds (% Sky Obscured)

38
72
66
47
38
22
36
11
43
28
58
32
10
27
26
19
10
4
13
38
36
65
89
95

High Clouds (% Sky Obscured)

65
77
90
90
95
96
56
54
27
22
87
90
94
100
100
100
100
100
99
98
100
100
97
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
6
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
14
41
1

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
2
0
0
0
0
4
10
13
25
39

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

15
15
15
14
14
14
14
14
14
14
15
15
15
15
15
15
15
15
15
14
14
15
15
15

Relative Humidity (%)

95
96
96
96
96
95
92
87
83
82
81
80
80
80
83
86
93
98
98
96
96
98
96
96

Pressure (mb)

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

Ozone (du)

266
265
263
263
263
266
268
266
266
267
267
266
267
268
269
272
273
272
272
271
271
271
271
271

Saturday 20

Waning Crescent 2%

05:19

18:56

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: 07:04, Set: 19:21, Transit: 13:13. Moon - Rise: 05:19, Set: 18:56. Civil Dark: 19:54 - 06:32. Nautical Dark: 20:33 - 05:53. Astro Dark: 21:13 - 05:13

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
99
99
96
97
95
97
98
76
36
36
65
58
77
73
68
83
83
73

Low Clouds (% Sky Obscured)

86
89
87
80
90
90
79
84
88
63
65
91
94
73
29
32
65
58
71
58
49
64
68
67

Medium Clouds (% Sky Obscured)

95
70
100
100
99
88
86
68
74
93
54
57
52
32
4
0
0
2
17
50
52
43
48
14

High Clouds (% Sky Obscured)

100
100
100
100
82
94
55
91
40
1
0
0
0
0
0
0
1
2
1
0
0
0
0
0

ISS Passover

Visibility (miles)

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

Fog (%)

8
6
1
3
0
63
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

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

Precipitation Probability (%)

61
95
95
95
87
60
71
72
95
90
35
33
40
31
17
13
9
14
13
21
23
37
47
28

Precipitation Amount (mm)

0.3
0.6
1.9
1.2
0.5
0
0.3
0.3
1.3
0.8
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0

Wind Speed/Direction (mph)

9
9
8
9
9
9
10
10
10
13
13
16
16
16
14
12
8
6
5
4
3
3
4
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

15
15
16
16
15
15
15
16
16
16
15
13
13
11
10
10
10
10
10
10
9
9
9
9

Relative Humidity (%)

96
98
100
98
96
95
95
96
96
95
93
87
85
80
76
78
83
89
90
88
88
88
90
91

Pressure (mb)

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

Ozone (du)

271
273
274
275
278
280
280
282
285
287
291
295
300
308
314
316
315
314
311
312
314
315
316
316

Sunday 21

New Moon 0%

06:33

19:07

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 OK
20 OK
21 OK
22 Good
23 Good
00 Good
01 Good
02 Good

Sun - Rise: 07:06, Set: 19:19, Transit: 13:12. Moon - Rise: 06:33, Set: 19:07. Civil Dark: 19:52 - 06:33. Nautical Dark: 20:30 - 05:55. Astro Dark: 21:10 - 05:15

Total Clouds (% Sky Obscured)

75
74
82
77
85
73
78
87
90
95
99
95
73
83
73
58
36
38
14
1
1
1
1
6

Low Clouds (% Sky Obscured)

49
53
65
57
68
51
57
64
69
71
59
53
55
65
61
49
36
38
14
0
0
0
0
0

Medium Clouds (% Sky Obscured)

46
45
35
39
53
61
66
75
82
85
97
88
40
28
2
2
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
3
3
14
5
12
3
3
2
0
0
0
0
0
0
0
0
3

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
7
6
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
Very Light Rain
Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

37
36
13
16
15
11
12
35
58
74
59
40
18
10
6
4
6
7
14
2
0
1
1
3

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

88
85
84
83
83
83
80
79
76
73
69
76
84
84
81
77
73
73
71
70
70
69
69
74

Pressure (mb)

1016
1016
1016
1017
1017
1018
1018
1019
1019
1020
1020
1021
1021
1022
1022
1023
1024
1024
1025
1026
1026
1026
1026
1027

Ozone (du)

317
317
318
319
320
317
316
316
317
318
318
319
319
319
320
321
323
325
327
327
327
329
329
328

Monday 22

Waxing Crescent 1%

07:45

19:18

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

Sun - Rise: 07:07, Set: 19:17, Transit: 13:12. Moon - Rise: 07:45, Set: 19:18. Civil Dark: 19:49 - 06:35. Nautical Dark: 20:28 - 05:56. Astro Dark: 21:08 - 05:16

Total Clouds (% Sky Obscured)

13
7
40
40
45
48
24
11
12
18
17
16
18
15
11
7
12
13
19
11
8
7
6
8

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
8
12
18
17
16
18
14
7
2
2
0
1
1
0
0
0
0

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
1
1
0
0
0
0
0
1
1
2
1
1
0
0
0
0
0
0

High Clouds (% Sky Obscured)

8
4
40
40
40
42
24
3
2
1
2
2
3
3
2
0
3
7
13
9
8
6
5
6

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 (%)

2
2
2
0
0
1
0
0
0
0
1
1
0
0
0
0
1
3
4
3
3
2
5
6

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

75
78
82
84
82
77
69
62
57
55
52
50
50
50
52
59
67
69
67
68
67
68
71
73

Pressure (mb)

1027
1027
1027
1028
1028
1029
1029
1029
1029
1029
1029
1029
1029
1028
1028
1028
1028
1029
1029
1029
1028
1028
1028
1028

Ozone (du)

324
322
320
319
318
316
314
313
312
311
310
310
309
309
309
308
308
307
307
306
306
305
305
304

Tuesday 23

Waxing Crescent 3%

08:56

19:30

03 Good
04 OK
05 Bad
06 OK
07 OK
08 OK
09 OK
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: 07:09, Set: 19:15, Transit: 13:12. Moon - Rise: 08:56, Set: 19:30. Civil Dark: 19:47 - 06:36. Nautical Dark: 20:26 - 05:58. Astro Dark: 21:05 - 05:18

Total Clouds (% Sky Obscured)

12
36
65
40
39
37
36
36
46
52
53
57
60
57
55
55
44
44
48
43
56
60
50
48

Low Clouds (% Sky Obscured)

0
0
0
0
6
12
18
24
31
37
42
50
49
57
55
55
17
17
18
19
24
29
31
34

Medium Clouds (% Sky Obscured)

2
18
30
40
39
37
36
36
39
41
41
40
38
36
29
29
12
26
37
39
41
48
42
31

High Clouds (% Sky Obscured)

9
34
64
40
39
37
36
36
46
52
53
57
60
57
55
55
20
44
48
43
56
60
50
48

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

Precipitation Probability (%)

0
0
1
1
5
7
4
17
21
24
38
42
47
54
60
68
13
18
20
27
31
35
40
42

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.3
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

74
77
78
78
81
78
70
62
56
53
51
50
50
53
56
62
71
72
74
75
77
79
81
82

Pressure (mb)

1027
1027
1027
1027
1027
1027
1027
1027
1026
1026
1026
1026
1025
1025
1025
1024
1024
1026
1026
1026
1026
1025
1025
1025

Ozone (du)

304
304
304
304
304
305
305
305
306
307
307
307
307
308
309
309
310
311
312
313
314
314
314
315

Wednesday 24

Waxing Crescent 7%

10:08

19:43

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: 07:10, Set: 19:13, Transit: 13:11. Moon - Rise: 10:08, Set: 19:43. Civil Dark: 19:45 - 06:38. Nautical Dark: 20:23 - 06:00. Astro Dark: 21:03 - 05:20

Total Clouds (% Sky Obscured)

46
40
48
43
59
79
100
93
89
87
90
93
96
97
96
95
96
97
100
99
98
97
96
95

Low Clouds (% Sky Obscured)

35
37
37
34
40
44
50
49
46
45
49
51
53
52
53
54
59
62
68
59
48
37
19
14

Medium Clouds (% Sky Obscured)

25
14
13
8
9
10
14
28
40
58
63
64
65
55
25
18
12
17
22
26
35
40
39
35

High Clouds (% Sky Obscured)

46
40
48
43
59
79
100
93
89
87
90
93
96
97
96
95
94
94
100
99
98
97
87
74

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 (%)

44
41
35
21
22
19
8
18
19
18
21
19
16
20
23
23
14
12
30
26
21
9
10
8

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

Chance of Frost

Temperature (°C)

8
8
8
8
8
9
11
13
14
15
15
15
15
15
14
13
12
11
11
10
10
10
10
10

Feels Like (°C)

7
7
7
7
7
7
7
7
8
8
9
14
13
14
13
13
13
10
10
10
9
9
8
7

Dew Point (°C)

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

Relative Humidity (%)

85
88
90
91
95
88
83
79
72
68
64
64
64
65
69
72
77
77
78
78
80
81
82
84

Pressure (mb)

1024
1024
1024
1024
1023
1023
1023
1023
1023
1023
1023
1023
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1021
1021

Ozone (du)

315
315
315
315
314
314
313
313
312
311
310
309
309
308
308
307
307
307
307
307
306
305
304
304

Thursday 25

Waxing Crescent 13%

11:20

20:00

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 OK
19 OK
20 OK
21 OK
22 OK
23 OK
00 OK

Sun - Rise: 07:12, Set: 19:10, Transit: 13:11. Moon - Rise: 11:20, Set: 20:00. Civil Dark: 19:43 - 06:39. Nautical Dark: 20:21 - 06:01. Astro Dark: 21:00 - 05:22

Total Clouds (% Sky Obscured)

93
87
76
63
70
82
98
99
99
100
81
57
35
27
24
24
20
20
19
23
27
34

Low Clouds (% Sky Obscured)

4
11
21
33
51
66
82
76
83
81
63
57
35
27
24
24
20
20
19
23
27
28

Medium Clouds (% Sky Obscured)

30
35
40
40
43
37
35
37
34
41
45
45
35
27
24
24
20
20
19
23
27
26

High Clouds (% Sky Obscured)

61
60
58
52
54
59
64
76
87
100
68
35
2
1
1
2
3
3
4
4
2
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

Fog (%)

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

Precipitation Probability (%)

2
6
8
5
14
21
24
13
18
34
48
61
56
45
36
30
25
20
9
13
12
2

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0.4
0.2
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

4
4
4
3
3
3
3
3
4
4
4
4
5
5
5
5
4
4
4
3
3
3

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

7
8
8
7
8
8
9
9
10
10
11
15
15
15
14
15
15
11
11
11
10
10

Dew Point (°C)

7
8
7
7
7
8
8
9
9
9
9
9
8
8
8
8
8
8
8
7
7
7

Relative Humidity (%)

84
85
85
87
87
84
79
75
71
67
63
62
61
59
66
71
79
81
84
84
84
85

Pressure (mb)

1021
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1019
1019
1019
1019
1019
1018
1019
1019
1019
1019
1019

Ozone (du)

303
303
302
301
301
301
300
300
300
300
300
301
302
303
304
305
306
306
306
306
305
304

Forecast for Mawgan Porth, Cornwall, United Kingdom (50.46,-5.03)

Generated: 19/09/25 03:34:17. Forecast: 19/09/25 to 25/09/25. Timezone: UTC+1.00