Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 15

Waning Crescent 41%

23:37

17:02

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

Sun - Rise: 06:46, Set: 19:23, Transit: 13:03. Moon - Rise: 23:37, Set: 17:02. Civil Dark: 19:57 - 06:12. Nautical Dark: 20:37 - 05:31. Astro Dark: 21:21 - 04:48

Total Clouds (% Sky Obscured)

73
72
68
96
66
100
86
49
78
81
69
68
53
62
94
47
36
39
47
42
37
38
42
36

Low Clouds (% Sky Obscured)

48
55
57
51
42
33
43
38
49
45
42
44
35
47
43
42
36
37
45
39
37
38
42
36

Medium Clouds (% Sky Obscured)

3
4
3
23
17
31
23
49
64
49
69
68
9
9
17
1
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
3
44
3
2
4
27
3
3
2
2
86
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
8
6
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 (%)

5
9
13
31
33
25
30
42
46
44
26
8
3
2
3
2
0
0
0
0
0
0
1
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)

14
14
14
23
23
24
23
23
24
24
24
23
22
22
22
21
21
21
21
19
19
17
17
17

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

71
73
66
68
69
66
66
64
65
72
74
78
78
74
74
73
70
73
65
65
62
63
66
67

Pressure (mb)

999
1000
1001
1001
1002
1002
1002
1003
1003
1003
1004
1005
1005
1006
1007
1008
1009
1010
1011
1011
1012
1013
1013
1014

Ozone (du)

299
300
300
301
302
303
305
305
306
307
308
310
309
308
307
310
305
305
304
300
300
298
298
299

Tuesday 16

Waning Crescent 30%

00:58

17:40

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
03 Bad
04 Bad
05 Bad
06 Bad

Sun - Rise: 06:47, Set: 19:20, Transit: 13:03. Moon - Rise: 00:58, Set: 17:40. Civil Dark: 19:54 - 06:14. Nautical Dark: 20:35 - 05:33. Astro Dark: 21:18 - 04:50

Total Clouds (% Sky Obscured)

100
100
100
100
100
95
100
96
91
90
100
100
100
100
100
100
100
100
98
99
100
100
100
100

Low Clouds (% Sky Obscured)

35
32
62
55
51
50
60
0
29
50
27
37
53
31
80
70
55
68
79
90
96
87
100
100

Medium Clouds (% Sky Obscured)

0
0
0
2
19
42
40
42
49
47
41
51
60
92
86
89
67
89
87
96
100
100
99
86

High Clouds (% Sky Obscured)

65
70
77
70
71
75
87
67
37
47
100
100
100
100
100
100
100
79
45
79
93
84
31
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
4
3
5
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
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

0
0
0
0
0
0
0
2
1
3
0
2
38
66
79
92
88
73
95
95
95
95
95
91

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0.4
0.5
0.6
0.5
0.2
0.6
1
1.8
1
1.2
0.6

Wind Speed/Direction (mph)

16
15
15
17
17
17
17
17
17
16
14
12
9
8
7
7
8
8
7
7
8
9
11
12

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

64
67
66
60
57
53
50
48
49
51
56
63
68
76
82
81
86
90
90
89
92
98
96
96

Pressure (mb)

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

Ozone (du)

299
298
297
297
294
289
285
282
279
278
275
273
270
268
267
267
268
266
265
263
262
263
263
262

Wednesday 17

Waning Crescent 20%

02:23

18:05

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
03 Bad
04 Bad
05 Bad
06 Bad

Sun - Rise: 06:49, Set: 19:18, Transit: 13:03. Moon - Rise: 02:23, Set: 18:05. Civil Dark: 19:52 - 06:15. Nautical Dark: 20:32 - 05:35. Astro Dark: 21:15 - 04:52

Total Clouds (% Sky Obscured)

100
95
87
68
56
100
100
95
80
96
100
91
100
85
71
60
66
63
75
83
90
93
96
97

Low Clouds (% Sky Obscured)

100
94
84
60
45
61
69
68
70
69
67
68
61
44
49
32
33
34
27
21
19
22
17
20

Medium Clouds (% Sky Obscured)

65
45
55
60
32
70
75
80
42
64
90
82
88
70
70
11
14
12
15
12
18
27
31
37

High Clouds (% Sky Obscured)

30
18
33
27
6
70
71
63
2
50
58
66
46
27
29
5
12
6
17
30
42
55
63
71

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

95
71
72
78
50
9
5
11
35
54
68
53
31
17
17
9
14
4
7
4
1
1
4
2

Precipitation Amount (mm)

0.9
0.4
0.4
0.6
0.3
0
0
0
0
0.3
0.5
0.2
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

95
96
95
95
96
95
95
93
95
95
95
95
93
95
95
95
95
95
95
93
93
92
92
92

Pressure (mb)

1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1013
1013
1013
1014
1014
1014
1014
1014
1014
1014
1014
1014

Ozone (du)

261
262
263
261
264
264
264
265
267
263
261
259
259
260
260
260
260
259
258
260
262
264
266
267

Thursday 18

Waning Crescent 12%

03:45

18:23

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
03 Bad
04 Bad
05 Bad
06 Bad

Sun - Rise: 06:51, Set: 19:15, Transit: 13:02. Moon - Rise: 03:45, Set: 18:23. Civil Dark: 19:49 - 06:17. Nautical Dark: 20:30 - 05:37. Astro Dark: 21:12 - 04:54

Total Clouds (% Sky Obscured)

95
95
88
80
84
89
72
96
95
95
93
92
93
91
94
96
97
100
98
94
97
97
95
98

Low Clouds (% Sky Obscured)

25
34
42
41
42
43
52
61
69
73
76
80
67
57
52
64
80
94
84
72
60
60
61
64

Medium Clouds (% Sky Obscured)

34
39
33
29
29
29
25
21
37
25
27
31
35
37
47
76
57
90
64
67
58
53
48
57

High Clouds (% Sky Obscured)

54
35
13
21
26
33
28
38
39
42
46
50
66
58
82
42
48
57
84
62
74
58
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
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 (%)

1
2
1
1
0
0
1
1
0
2
1
1
3
5
2
2
2
1
23
30
35
30
19
1

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)

12
13
14
14
16
14
14
14
12
12
10
10
10
9
8
7
7
9
10
11
12
13
13
13

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

14
14
14
15
14
14
14
13
13
14
15
15
14
14
15
15
14
14
15
15
15
15
15
15

Relative Humidity (%)

90
90
86
83
77
73
69
62
63
67
74
77
79
83
89
92
89
89
90
96
95
90
92
93

Pressure (mb)

1014
1015
1015
1015
1016
1016
1016
1016
1015
1015
1015
1016
1016
1017
1017
1017
1017
1017
1017
1017
1016
1016
1016
1016

Ozone (du)

269
269
269
269
268
267
266
265
262
259
257
256
256
255
256
256
257
257
257
258
258
259
260
260

Friday 19

Waning Crescent 6%

05:04

18:36

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
03 Bad
04 Bad
05 Bad
06 Bad

Sun - Rise: 06:52, Set: 19:13, Transit: 13:02. Moon - Rise: 05:04, Set: 18:36. Civil Dark: 19:47 - 06:19. Nautical Dark: 20:27 - 05:38. Astro Dark: 21:10 - 04:56

Total Clouds (% Sky Obscured)

99
99
100
100
100
100
100
95
100
98
85
92
99
99
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

69
74
78
75
71
67
62
59
56
51
45
40
24
17
10
19
28
37
41
44
49
55
60
66

Medium Clouds (% Sky Obscured)

36
23
16
27
38
48
35
22
5
23
8
40
64
74
82
79
75
70
71
75
79
72
59
51

High Clouds (% Sky Obscured)

82
61
78
82
94
97
86
75
95
95
59
84
95
97
99
99
100
100
100
100
100
100
100
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
8
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
4
10
12
16
4
7
3
2
0
0
0
0
3
10
28
21
12
0
1
1
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)

14
14
15
16
14
14
12
12
13
14
11
9
6
6
6
5
5
5
5
5
6
6
6
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

15
15
15
16
16
17
17
16
14
13
13
13
13
12
11
11
10
9
9
8
8
7
7
7

Relative Humidity (%)

87
85
83
81
84
85
85
76
64
60
61
63
72
73
73
73
72
69
68
66
63
62
61
61

Pressure (mb)

1016
1016
1016
1017
1017
1017
1017
1017
1017
1017
1016
1017
1016
1017
1017
1017
1017
1017
1016
1016
1015
1015
1014
1014

Ozone (du)

260
260
260
261
261
261
260
259
261
262
263
263
263
263
263
264
264
264
264
264
265
265
266
268

Saturday 20

Waning Crescent 2%

06:20

18:46

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
03 Bad
04 Bad
05 Bad
06 Bad

Sun - Rise: 06:54, Set: 19:11, Transit: 13:02. Moon - Rise: 06:20, Set: 18:46. Civil Dark: 19:45 - 06:20. Nautical Dark: 20:25 - 05:40. Astro Dark: 21:07 - 04:58

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
90
79
69
71
73
73
72
71
77
82
85
87
86
86
85

Low Clouds (% Sky Obscured)

55
44
34
44
56
64
63
64
63
58
49
43
49
57
64
66
66
70
67
66
64
62
63
63

Medium Clouds (% Sky Obscured)

47
46
47
63
80
95
91
87
82
75
73
69
71
73
73
72
56
44
30
16
1
1
0
0

High Clouds (% Sky Obscured)

100
99
99
100
100
100
100
100
100
73
50
50
45
49
44
34
29
29
41
53
64
60
59
60

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
6
4
3
2
1
2
3

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
Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

3
6
7
10
8
2
7
11
12
11
11
9
24
27
25
32
36
43
55
64
71
73
78
77

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

14
15
16
16
17
18
19
19
19
19
18
17
16
16
15
15
14
14
14
14
14
14
13
13

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

61
60
58
58
60
62
65
67
68
69
73
77
81
83
86
90
90
93
95
95
96
98
98
96

Pressure (mb)

1013
1013
1013
1013
1012
1012
1011
1011
1010
1009
1010
1010
1010
1011
1011
1011
1012
1012
1012
1011
1011
1011
1011
1012

Ozone (du)

269
269
269
269
269
269
269
270
271
271
273
274
276
277
278
279
280
280
280
281
282
283
285
286

Sunday 21

New Moon 0%

No Rise

18:56

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

Sun - Rise: 06:56, Set: 19:08, Transit: 13:01. Moon - Rise: No Rise, Set: 18:56. Civil Dark: 19:42 - 06:22. Nautical Dark: 20:22 - 05:42. Astro Dark: 21:04 - 05:00

Total Clouds (% Sky Obscured)

70
56
45
57
68
78
81
87
98
80
62
44
49
53
53
50
47
49

Low Clouds (% Sky Obscured)

52
42
31
44
56
68
62
57
55
60
52
40
37
34
32
24
20
16

Medium Clouds (% Sky Obscured)

0
0
0
12
25
37
36
35
38
32
28
30
36
42
48
44
40
36

High Clouds (% Sky Obscured)

46
33
23
15
8
0
0
0
0
0
0
0
3
7
10
7
3
0

ISS Passover

Visibility (miles)

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

Fog (%)

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

Precipitation Type

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

Precipitation Probability (%)

72
62
49
49
52
57
68
76
85
92
95
95
86
82
86
76
67
64

Precipitation Amount (mm)

0.4
0.3
0
0
0
0.2
0.3
0.5
0.6
0.7
0.9
0.8
0.6
0.5
0.7
0.5
0.4
0.4

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

13
13
12
12
12
12
13
13
13
13
13
13
12
12
11
11
11
11

Relative Humidity (%)

96
89
82
75
73
72
71
71
71
71
73
78
82
86
90
96
95
96

Pressure (mb)

1012
1012
1012
1013
1013
1013
1012
1012
1012
1012
1012
1012
1012
1012
1013
1013
1013
1014

Ozone (du)

287
289
291
292
295
298
300
300
300
299
302
304
307
306
306
306
305
303

Forecast for Northwick, Worcestershire, United Kingdom (52.21,-2.22)

Generated: 15/09/25 07:04:16. Forecast: 15/09/25 to 21/09/25. Timezone: UTC+1.00