Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 18

Waning Crescent 12%

03:38

18:10

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
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad

Sun - Rise: 06:41, Set: 19:05, Transit: 12:52. Moon - Rise: 03:38, Set: 18:10. Civil Dark: 19:39 - 06:08. Nautical Dark: 20:18 - 05:28. Astro Dark: 21:00 - 04:47

Total Clouds (% Sky Obscured)

91
92
76
75
90
73
88
99
89
100
77
82
100
100
98
63
66
60
72
87
91
54
61
51

Low Clouds (% Sky Obscured)

87
66
76
75
89
73
75
47
58
61
44
40
48
51
60
61
64
48
44
38
42
49
51
38

Medium Clouds (% Sky Obscured)

2
19
0
0
3
2
2
0
5
11
17
26
14
64
31
0
4
39
70
70
70
54
30
8

High Clouds (% Sky Obscured)

0
0
2
3
3
3
45
60
40
67
57
47
100
99
94
30
29
48
61
61
65
30
43
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
12
36

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
1
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
12
13
13
14
15
15
16
15
14
12
11
10
10
9
9
8
8
7
6
6
5
5
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

88
86
78
75
67
57
55
56
59
63
67
73
80
81
82
81
83
83
85
86
87
89
87
89

Pressure (mb)

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

Ozone (du)

264
264
264
263
261
260
259
257
256
257
257
257
257
256
256
256
257
257
259
260
260
259
259
259

Friday 19

Waning Crescent 6%

04:56

18:24

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

Sun - Rise: 06:43, Set: 19:03, Transit: 12:52. Moon - Rise: 04:56, Set: 18:24. Civil Dark: 19:36 - 06:10. Nautical Dark: 20:16 - 05:30. Astro Dark: 20:57 - 04:49

Total Clouds (% Sky Obscured)

56
52
44
33
33
23
45
100
99
10
5
1
4
16
99
100
81
61
66
34
33
100
100
98

Low Clouds (% Sky Obscured)

39
37
27
12
3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

7
7
3
8
0
0
2
17
15
0
0
0
3
0
16
12
0
37
31
16
16
49
80
87

High Clouds (% Sky Obscured)

56
47
42
33
33
23
41
100
97
10
5
1
4
16
97
100
81
26
25
25
33
100
100
93

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 (%)

72
100
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
2
1
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)

4
5
6
6
7
9
11
11
11
10
8
6
4
4
3
3
2
2
2
1
2
1
1
1

Chance of Frost

Temperature (°C)

16
18
19
21
23
25
25
25
24
23
22
20
19
18
17
16
16
16
15
15
15
15
15
16

Feels Like (°C)

15
17
19
21
23
24
23
23
21
20
20
19
20
17
16
16
15
15
16
15
14
14
14
15

Dew Point (°C)

13
13
14
14
14
12
9
8
8
8
9
10
10
9
8
8
7
7
7
6
6
6
6
6

Relative Humidity (%)

83
76
70
64
56
45
35
32
34
37
44
51
55
56
57
57
56
56
57
55
55
54
54
54

Pressure (mb)

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

Ozone (du)

261
260
259
259
258
259
259
260
260
260
259
259
259
259
259
258
260
260
261
261
260
261
261
261

Saturday 20

Waning Crescent 2%

06:10

18:35

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
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad

Sun - Rise: 06:44, Set: 19:01, Transit: 12:52. Moon - Rise: 06:10, Set: 18:35. Civil Dark: 19:34 - 06:11. Nautical Dark: 20:13 - 05:32. Astro Dark: 20:55 - 04:51

Total Clouds (% Sky Obscured)

70
82
96
100
87
89
97
98
92
58
68
75
50
57
35
47
55
53
54
55
54
50
49
52

Low Clouds (% Sky Obscured)

0
0
17
8
36
36
40
84
67
54
46
53
26
30
0
27
41
43
37
39
38
33
31
36

Medium Clouds (% Sky Obscured)

70
82
90
88
87
89
89
32
6
0
50
65
50
57
35
47
40
50
54
49
50
50
49
45

High Clouds (% Sky Obscured)

49
25
80
100
49
47
92
82
73
25
40
30
30
35
35
35
40
35
30
30
20
15
15
10

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
6
2
3
2
3
3
4
9
6
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
Very Light Rain
None
None
None
None
None
None
None
None
None
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
None
None
None
None
None

Precipitation Probability (%)

0
5
16
59
33
9
11
0
0
0
1
0
14
64
90
95
95
95
95
63
37
32
2
0

Precipitation Amount (mm)

0
0
0
0.3
0
0
0
0
0
0
0
0
0
0.5
0.6
0.6
0.6
0.9
0.6
0
0
0
0
0

Wind Speed/Direction (mph)

2
3
2
3
4
6
8
8
10
11
10
8
6
6
5
5
5
7
6
5
8
9
7
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

16
17
20
19
19
20
20
20
20
18
19
17
17
16
16
16
15
15
15
15
14
12
11
11

Dew Point (°C)

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

Relative Humidity (%)

51
48
47
50
58
60
51
51
48
46
54
63
68
73
87
90
93
93
95
95
93
84
81
84

Pressure (mb)

1011
1011
1011
1011
1011
1010
1010
1009
1009
1009
1010
1010
1011
1011
1011
1011
1011
1011
1010
1010
1010
1010
1010
1011

Ozone (du)

260
259
256
255
255
258
260
259
259
261
262
262
262
262
262
263
263
265
266
267
267
268
270
270

Sunday 21

New Moon 0%

07:23

18:46

08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 OK
16 OK
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

Sun - Rise: 06:46, Set: 18:58, Transit: 12:51. Moon - Rise: 07:23, Set: 18:46. Civil Dark: 19:32 - 06:13. Nautical Dark: 20:11 - 05:34. Astro Dark: 20:52 - 04:53

Total Clouds (% Sky Obscured)

56
67
74
82
89
87
85
36
42
49
57
74
74
62
54
66
75
81
89
96
95
80
91
94

Low Clouds (% Sky Obscured)

41
46
56
66
75
63
61
36
42
49
50
45
39
30
32
34
49
55
56
56
33
35
47
50

Medium Clouds (% Sky Obscured)

34
2
1
2
2
13
73
23
19
25
27
30
34
34
38
53
68
63
58
53
64
24
39
78

High Clouds (% Sky Obscured)

10
10
5
10
15
15
3
0
0
0
0
0
0
0
0
0
15
43
68
69
68
67
62
46

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
3
9
9
9
4

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
0
1
0
2
3
1
4
5
3
4
3
9
18
32
31
34
51
46
16
24
34
32

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

13
14
15
16
17
18
18
18
18
17
16
15
15
14
13
13
12
12
11
11
11
11
11
11

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

83
76
69
63
55
50
46
44
44
47
51
57
61
63
66
69
71
70
70
80
84
87
90
90

Pressure (mb)

1011
1012
1012
1012
1012
1012
1012
1012
1012
1012
1013
1013
1014
1014
1014
1014
1014
1014
1014
1015
1014
1015
1015
1016

Ozone (du)

273
274
275
275
275
276
276
278
279
280
280
283
286
287
287
288
288
290
289
292
294
298
299
298

Monday 22

Waxing Crescent 1%

No Rise

18:56

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 OK
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad

Sun - Rise: 06:48, Set: 18:56, Transit: 12:51. Moon - Rise: No Rise, Set: 18:56. Civil Dark: 19:29 - 06:14. Nautical Dark: 20:09 - 05:35. Astro Dark: 20:49 - 04:55

Total Clouds (% Sky Obscured)

93
90
92
91
90
87
83
80
70
57
46
78
75
74
62
51
41
57
72
88
91
94
93
89

Low Clouds (% Sky Obscured)

50
52
51
53
53
53
52
52
40
29
18
52
50
48
40
33
24
31
36
40
54
66
80
77

Medium Clouds (% Sky Obscured)

82
70
87
88
88
84
64
65
30
25
21
3
5
7
6
6
4
6
8
15
15
20
15
10

High Clouds (% Sky Obscured)

26
6
4
2
0
0
0
0
0
1
1
6
10
18
16
20
18
14
10
7
6
5
5
7

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
Very Light Rain
Light Rain
Very Light Rain

Precipitation Probability (%)

10
5
10
7
3
7
5
2
2
3
0
6
2
1
15
6
1
28
20
8
48
60
65
63

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.4
0.3

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

87
81
73
66
59
55
52
53
57
61
62
63
63
65
66
68
71
72
72
71
69
69
68
68

Pressure (mb)

1017
1017
1017
1018
1017
1017
1017
1017
1017
1018
1018
1018
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020

Ozone (du)

297
294
295
297
299
302
302
304
305
306
306
306
307
308
308
308
308
309
309
310
310
311
312
312

Tuesday 23

Waxing Crescent 3%

08:36

19:06

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
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad

Sun - Rise: 06:49, Set: 18:54, Transit: 12:51. Moon - Rise: 08:36, Set: 19:06. Civil Dark: 19:27 - 06:16. Nautical Dark: 20:06 - 05:37. Astro Dark: 20:47 - 04:56

Total Clouds (% Sky Obscured)

89
88
93
97
100
98
97
93
88
81
69
84
92
97
91
90
91
95
89
88
89
94
94
90

Low Clouds (% Sky Obscured)

77
77
81
86
90
83
79
70
62
50
38
56
74
92
88
85
81
78
76
73
73
72
72
78

Medium Clouds (% Sky Obscured)

5
10
20
30
40
44
48
53
48
65
61
36
25
15
15
10
10
14
14
23
31
31
31
27

High Clouds (% Sky Obscured)

10
13
40
69
100
97
90
86
85
80
65
40
20
0
18
37
70
47
22
1
5
7
16
13

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

Precipitation Probability (%)

65
69
65
67
70
64
61
62
62
61
59
75
92
95
82
67
63
55
45
34
38
39
30
28

Precipitation Amount (mm)

0.4
0.4
0.4
0.4
0.5
0.4
0.4
0.5
0.4
0.3
0.2
0.4
0.6
1
0.4
0.3
0.2
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

4
4
4
3
4
4
3
3
2
2
3
3
4
4
5
5
5
5
5
5
6
6
6
6

Relative Humidity (%)

63
59
56
53
52
49
46
43
40
42
46
49
53
58
63
65
67
69
72
73
76
76
77
77

Pressure (mb)

1020
1020
1020
1020
1019
1019
1019
1018
1018
1018
1018
1018
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019

Ozone (du)

311
310
309
309
310
310
310
311
312
312
312
313
313
313
313
313
313
313
313
312
312
310
309
308

Wednesday 24

Waxing Crescent 7%

09:48

19:19

08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 OK
17 OK
18 OK
19 OK
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad

Sun - Rise: 06:51, Set: 18:52, Transit: 12:50. Moon - Rise: 09:48, Set: 19:19. Civil Dark: 19:25 - 06:18. Nautical Dark: 20:04 - 05:39. Astro Dark: 20:44 - 04:58

Total Clouds (% Sky Obscured)

92
78
79
75
71
68
67
61
41
36
23
33
47
58
57
61
65

Low Clouds (% Sky Obscured)

85
78
77
75
71
68
67
61
41
36
23
17
9
3
12
21
33

Medium Clouds (% Sky Obscured)

22
18
16
7
8
9
10
12
10
14
21
31
38
45
53
56
50

High Clouds (% Sky Obscured)

8
2
1
1
2
2
1
1
3
6
10
11
11
11
23
34
45

ISS Passover

Visibility (miles)

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

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

25
14
11
10
2
8
9
7
8
7
2
2
3
4
19
27
33

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

7
8
9
8
8
8
8
8
8
7
6
4
4
3
3
2
2

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

71
65
60
53
48
43
40
37
34
37
39
42
46
50
55
56
58

Pressure (mb)

1020
1020
1020
1020
1020
1020
1020
1020
1021
1021
1021
1021
1021
1022
1022
1022
1022

Ozone (du)

307
306
305
303
302
300
300
299
298
299
299
300
299
299
298
298
298

Forecast for Sutton at Hone, Kent, United Kingdom (51.41,0.23)

Generated: 18/09/25 08:56:12. Forecast: 18/09/25 to 24/09/25. Timezone: UTC+1.00