Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 18

Waning Crescent 6%

03:34

18:20

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

Sun - Rise: 06:38, Set: 19:00, Transit: 12:49. Moon - Rise: 03:34, Set: 18:20. Civil Dark: 19:33 - 06:05. Nautical Dark: 20:12 - 05:25. Astro Dark: 20:54 - 04:44

Total Clouds (% Sky Obscured)

49
42
42
52
56
61
57
45
45
49
37
20
19
91
8
80
100
19
66
55
62
58
18
99

Low Clouds (% Sky Obscured)

41
40
27
27
42
59
47
33
41
49
37
15
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

6
5
17
26
3
3
3
3
0
0
0
0
0
0
0
4
10
19
41
36
48
11
2
16

High Clouds (% Sky Obscured)

25
12
30
32
49
24
31
28
15
8
2
5
15
91
8
80
100
6
26
4
40
47
17
95

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
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
10
9
8
7
6
6
6
6
6
6
9
11
12
13
13
13
13
12
10
7
7
6
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

15
15
16
15
15
14
15
15
14
15
18
19
19
19
20
20
19
19
20
20
20
17
17
17

Dew Point (°C)

14
14
15
14
14
14
14
14
14
14
16
15
14
13
11
9
9
8
6
7
9
8
7
6

Relative Humidity (%)

86
86
90
92
93
95
95
96
95
95
93
80
70
61
48
41
40
38
35
37
46
49
49
48

Pressure (mb)

1022
1022
1022
1022
1021
1021
1021
1020
1020
1020
1020
1020
1020
1019
1019
1018
1018
1017
1017
1016
1016
1016
1016
1016

Ozone (du)

260
258
258
256
256
257
258
258
258
260
262
263
262
263
264
262
261
261
260
260
260
260
261
260

Friday 19

Waning Crescent 2%

04:52

18:32

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

Sun - Rise: 06:40, Set: 18:57, Transit: 12:48. Moon - Rise: 04:52, Set: 18:32. Civil Dark: 19:31 - 06:06. Nautical Dark: 20:10 - 05:27. Astro Dark: 20:51 - 04:46

Total Clouds (% Sky Obscured)

100
100
91
74
100
100
94
100
100
78
85
100
100
100
91
73
80
93
97
100
95
78
100
75

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
5
0
0
15
36
45
46
62
58
50
40
61
73
67
58
61
75

Medium Clouds (% Sky Obscured)

24
75
90
74
78
82
70
74
90
76
81
84
81
79
88
10
22
45
51
55
70
58
31
0

High Clouds (% Sky Obscured)

99
87
68
50
100
100
88
100
100
64
65
100
100
100
10
14
40
89
91
87
61
6
96
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
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
Very Light Rain
Very Light Rain
None
None
None
None

Precipitation Probability (%)

0
0
4
0
0
3
0
0
0
1
3
11
19
23
8
1
4
24
61
56
19
13
8
3

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

5
5
4
2
3
4
3
4
3
5
7
11
16
17
16
19
20
20
19
16
14
14
18
18

Chance of Frost

Temperature (°C)

17
16
16
16
15
16
16
16
16
17
18
19
20
20
20
21
20
20
20
18
18
17
17
17

Feels Like (°C)

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

Dew Point (°C)

6
5
4
4
3
3
4
4
4
7
8
10
13
14
15
14
12
12
10
9
12
13
13
14

Relative Humidity (%)

48
47
47
45
42
43
43
45
46
53
52
56
67
69
70
65
57
59
55
57
67
76
78
82

Pressure (mb)

1016
1016
1015
1014
1014
1013
1012
1012
1011
1011
1011
1011
1011
1011
1010
1010
1010
1010
1009
1009
1009
1008
1008
1009

Ozone (du)

259
258
258
256
256
257
258
257
259
259
259
259
258
259
259
259
259
259
260
263
265
265
267
273

Saturday 20

Waning Crescent 0%

06:07

18:42

22 OK
23 OK
00 OK
01 OK
02 Good
03 Good
04 OK
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

Sun - Rise: 06:41, Set: 18:55, Transit: 12:48. Moon - Rise: 06:07, Set: 18:42. Civil Dark: 19:28 - 06:08. Nautical Dark: 20:07 - 05:29. Astro Dark: 20:48 - 04:48

Total Clouds (% Sky Obscured)

41
40
22
7
11
5
21
50
36
50
76
87
93
77
86
90
92
94
89
87
87
87
85
88

Low Clouds (% Sky Obscured)

41
40
22
7
11
5
21
50
36
50
69
67
81
64
61
63
77
75
73
51
54
49
45
42

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
10
79
34
47
66
18
24
46
86
76
54
87
57
88

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
1
0
6
25
4
14
25
30
1
4
0
0
1
1
13

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
8
5
6
4
3
5
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
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
None
None
None
None
None
None
None

Precipitation Probability (%)

1
0
0
0
0
0
0
0
6
39
60
66
69
81
80
75
71
55
44
33
14
14
11
10

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0.3
0.4
0.5
0.7
0.6
0.4
0.3
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

18
15
12
12
11
10
8
6
5
5
4
5
6
8
11
13
13
12
13
14
14
14
14
14

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

82
80
86
90
85
84
84
88
88
88
81
77
78
75
79
86
87
86
84
84
84
81
79
75

Pressure (mb)

1009
1011
1011
1012
1012
1013
1013
1013
1014
1014
1015
1015
1016
1016
1016
1017
1017
1018
1018
1018
1018
1019
1019
1020

Ozone (du)

274
273
273
274
275
276
277
279
282
283
285
287
288
288
289
289
292
294
296
296
299
302
305
308

Sunday 21

New Moon 1%

07:20

18:52

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

Sun - Rise: 06:43, Set: 18:53, Transit: 12:48. Moon - Rise: 07:20, Set: 18:52. Civil Dark: 19:26 - 06:10. Nautical Dark: 20:05 - 05:30. Astro Dark: 20:46 - 04:50

Total Clouds (% Sky Obscured)

87
86
85
79
74
69
68
68
71
70
67
67
65
62
61
66
67
70
66
59
27
35
50
71

Low Clouds (% Sky Obscured)

44
46
48
49
50
51
51
51
51
50
52
51
54
53
53
53
53
56
51
45
27
35
50
71

Medium Clouds (% Sky Obscured)

87
86
73
70
49
51
43
22
40
23
22
21
38
9
5
3
3
4
1
1
0
9
18
24

High Clouds (% Sky Obscured)

16
11
5
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3
5
8

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

21
17
13
22
35
39
52
54
48
52
56
60
69
60
47
34
24
18
12
9
4
14
15
9

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

72
68
67
65
64
67
73
75
75
75
76
76
75
76
77
74
71
70
69
64
59
62
63
63

Pressure (mb)

1021
1021
1021
1021
1021
1021
1021
1021
1022
1022
1023
1024
1024
1025
1025
1025
1025
1025
1025
1026
1026
1026
1026
1026

Ozone (du)

309
310
311
310
309
307
306
307
309
310
310
309
309
310
310
310
309
308
308
307
307
307
307
305

Monday 22

Waxing Crescent 3%

08:32

19:03

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

Sun - Rise: 06:44, Set: 18:51, Transit: 12:47. Moon - Rise: 08:32, Set: 19:03. Civil Dark: 19:24 - 06:11. Nautical Dark: 20:03 - 05:32. Astro Dark: 20:43 - 04:52

Total Clouds (% Sky Obscured)

76
94
99
99
99
95
92
85
82
91
97
93
87
84
95
96
94
94
94
93
90
91
92
91

Low Clouds (% Sky Obscured)

70
73
69
68
67
54
53
53
49
47
45
43
44
50
51
39
26
12
15
17
22
33
46
59

Medium Clouds (% Sky Obscured)

24
20
22
30
44
50
45
43
50
78
93
88
69
46
64
66
61
56
54
55
53
58
55
51

High Clouds (% Sky Obscured)

30
54
72
77
81
85
57
31
4
34
65
90
87
84
90
95
94
94
94
93
90
90
86
76

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

Precipitation Probability (%)

25
30
28
34
42
55
55
43
44
48
39
28
48
39
23
54
45
18
31
39
44
61
72
81

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

63
65
61
63
64
67
76
79
80
80
73
66
60
58
57
56
57
59
59
65
70
76
76
76

Pressure (mb)

1027
1026
1026
1026
1026
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1024
1024
1023
1023
1023
1023
1023
1023
1023

Ozone (du)

304
303
302
302
303
304
303
301
301
300
300
301
301
302
303
303
304
305
306
309
312
315
315
315

Tuesday 23

Waxing Crescent 7%

09:45

19:16

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

Sun - Rise: 06:46, Set: 18:48, Transit: 12:47. Moon - Rise: 09:45, Set: 19:16. Civil Dark: 19:21 - 06:13. Nautical Dark: 20:00 - 05:34. Astro Dark: 20:41 - 04:53

Total Clouds (% Sky Obscured)

94
97
100
100
100
100
100
100
100
96
94
95
96
97
97
98
99
100
100
100
100
93
87
83

Low Clouds (% Sky Obscured)

63
62
70
75
80
85
86
86
88
78
68
62
67
69
73
80
86
91
75
59
44
46
47
49

Medium Clouds (% Sky Obscured)

32
25
18
30
42
55
50
52
41
22
15
4
4
4
9
18
43
50
45
40
40
25
13
10

High Clouds (% Sky Obscured)

60
55
51
68
80
93
93
93
92
93
94
92
62
31
0
35
67
99
74
55
36
30
35
35

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

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

Precipitation Probability (%)

66
49
28
31
32
31
33
33
30
35
36
33
35
32
27
39
51
62
59
57
63
61
35
33

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

75
75
75
76
74
72
70
67
63
60
58
56
53
52
53
53
53
52
52
56
60
63
65
66

Pressure (mb)

1023
1023
1023
1023
1023
1023
1023
1023
1023
1023
1023
1023
1023
1023
1023
1023
1023
1023
1023
1023
1023
1024
1024
1024

Ozone (du)

316
314
313
312
312
312
312
312
311
311
311
311
311
311
310
310
309
308
307
307
306
306
306
306

Wednesday 24

Waxing Crescent 13%

10:58

19:31

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
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 OK
18 Good

Sun - Rise: 06:47, Set: 18:46, Transit: 12:47. Moon - Rise: 10:58, Set: 19:31. Civil Dark: 19:19 - 06:14. Nautical Dark: 19:58 - 05:36. Astro Dark: 20:38 - 04:55

Total Clouds (% Sky Obscured)

83
86
90
83
77
71
58
49
36
48
60
67
61
60
59
48
50
53
35
22
11

Low Clouds (% Sky Obscured)

61
73
85
78
72
65
58
49
36
38
34
30
37
39
42
37
42
42
30
18
6

Medium Clouds (% Sky Obscured)

14
16
13
14
16
19
12
7
0
5
8
11
6
0
0
0
0
0
2
3
0

High Clouds (% Sky Obscured)

36
27
17
12
7
1
1
0
0
7
10
19
23
32
41
40
34
29
26
16
5

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

Fog (%)

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
Very Light Rain
None
None
None

Precipitation Probability (%)

32
30
25
36
41
34
34
31
22
31
28
12
16
32
25
34
42
49
39
29
7

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

7
6
5
5
7
8
9
9
8
8
9
10
11
11
12
12
13
13
13
13
13

Dew Point (°C)

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

Relative Humidity (%)

67
65
65
65
68
73
78
76
74
73
65
58
52
53
54
54
55
55
55
60
65

Pressure (mb)

1024
1024
1024
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025

Ozone (du)

305
305
305
305
305
305
304
304
303
303
302
302
301
300
299
299
298
298
297
297
297

Forecast for Blean, Kent, United Kingdom (51.30,1.05)

Generated: 18/09/25 21:45:59. Forecast: 18/09/25 to 24/09/25. Timezone: UTC+1.00