Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 15

Waning Crescent 30%

23:37

17:02

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 OK
04 OK
05 OK
06 Bad
07 OK
08 Bad
09 Bad
10 Bad
11 Bad

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)

75
75
75
75
75
75
77
65
83
64
47
42
47
44
45
42
41
42
44
33
82
87
97
99

Low Clouds (% Sky Obscured)

59
38
48
40
51
37
44
39
44
48
45
42
45
41
38
39
38
42
41
33
41
54
67
59

Medium Clouds (% Sky Obscured)

1
24
33
40
25
28
3
4
18
3
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

1
2
5
2
2
51
3
35
3
0
0
0
0
0
0
0
0
0
0
0
37
37
44
43

ISS Passover

Visibility (miles)

-
-
-
-
-
-
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

Precipitation Type

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

Precipitation Probability (%)

0
0
100
100
0
0
3
0
1
2
0
0
1
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

18
21
21
19
21
17
18
18
18
18
21
22
20
19
20
17
17
17
16
14
13
14
17
17

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

70
63
61
65
68
69
69
68
68
71
73
64
65
64
60
62
61
60
61
59
63
66
60
57

Pressure (mb)

1002
1003
1003
1004
1004
1005
1004
1005
1006
1008
1009
1010
1010
1011
1012
1012
1013
1013
1014
1014
1015
1016
1016
1017

Ozone (du)

306
307
307
307
307
305
306
306
306
306
303
303
303
301
298
295
294
295
294
295
293
292
289
287

Tuesday 16

Waning Crescent 20%

00:58

17:40

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
08 Bad
09 Bad
10 Bad
11 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)

98
100
100
96
100
100
100
95
93
100
100
100
100
100
100
100
99
96
100
100
100
65
70
67

Low Clouds (% Sky Obscured)

45
39
21
61
0
0
56
47
36
48
73
65
68
84
86
87
85
87
100
100
100
65
69
67

Medium Clouds (% Sky Obscured)

13
26
29
31
32
34
20
28
63
92
86
90
95
100
100
99
96
93
84
80
69
10
40
5

High Clouds (% Sky Obscured)

75
100
97
87
100
94
95
77
77
100
100
100
100
100
100
90
76
15
31
2
9
4
5
1

ISS Passover

Visibility (miles)

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

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
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Moderate Rain
Light Rain
None
None
None
Light Rain
Light Rain
None

Precipitation Probability (%)

1
0
3
2
2
0
0
2
9
27
82
95
95
95
95
95
95
95
43
25
44
68
62
35

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0.6
0.9
1.2
1
1.8
1.5
2.5
0.7
0
0
0
0.6
0.4
0

Wind Speed/Direction (mph)

17
16
16
17
15
13
11
9
6
6
6
7
7
8
7
9
12
11
12
15
16
14
14
16

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

11
12
12
11
11
12
12
11
12
11
10
11
11
11
11
11
11
11
12
12
12
13
15
17

Dew Point (°C)

7
7
6
6
6
7
8
9
10
9
10
10
11
10
11
12
13
13
14
14
15
16
17
19

Relative Humidity (%)

56
52
49
48
50
55
61
68
78
79
81
84
87
86
90
95
95
96
96
93
93
95
95
95

Pressure (mb)

1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1016
1016
1015
1014
1013
1012
1011
1010
1010
1010
1010
1010

Ozone (du)

286
283
280
278
276
275
273
271
270
269
268
266
265
265
262
261
262
261
262
262
263
264
262
262

Wednesday 17

Waning Crescent 12%

02:23

18:05

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
08 Bad
09 Bad
10 Bad
11 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)

47
46
67
64
100
100
100
68
71
69
87
77
76
68
93
92
93
99
98
100
100
99
100
100

Low Clouds (% Sky Obscured)

47
46
58
55
59
54
46
34
54
34
43
48
40
46
33
29
17
50
86
100
81
64
54
85

Medium Clouds (% Sky Obscured)

45
40
25
1
53
57
77
51
59
69
47
16
15
10
20
16
16
19
24
24
30
33
35
33

High Clouds (% Sky Obscured)

0
0
14
13
70
70
65
20
19
35
49
12
19
16
1
19
2
45
42
6
59
25
64
66

ISS Passover

Visibility (miles)

8
9
6
9
9
9
9
9
9
9
9
9
9
9
9
9
7
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
Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

6
55
31
1
2
5
4
5
12
4
1
1
2
1
0
2
20
1
12
7
1
1
4
10

Precipitation Amount (mm)

0
0.4
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

93
93
95
93
92
95
95
95
95
96
95
95
92
95
96
96
96
92
93
92
89
86
83
78

Pressure (mb)

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

Ozone (du)

263
264
265
264
264
263
262
262
262
261
263
264
263
262
261
261
261
260
261
262
261
261
261
260

Thursday 18

Waning Crescent 6%

03:45

18:23

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
08 Bad
09 Bad
10 Bad
11 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)

100
98
96
95
96
96
97
95
92
90
85
80
74
66
91
76
94
96
100
100
100
100
99
97

Low Clouds (% Sky Obscured)

86
86
85
82
76
79
75
76
73
71
66
58
50
53
56
60
60
60
61
65
70
76
77
76

Medium Clouds (% Sky Obscured)

20
18
17
62
36
33
43
85
72
16
32
12
11
36
68
47
72
71
56
61
57
58
41
31

High Clouds (% Sky Obscured)

100
80
57
35
25
25
25
20
14
15
15
4
1
27
51
67
65
76
97
100
100
100
83
47

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 (%)

16
6
8
9
13
13
6
11
10
4
4
3
0
6
8
7
13
14
13
10
5
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)

16
17
19
18
17
16
15
13
12
12
12
12
12
12
11
10
10
10
10
10
10
12
13
13

Chance of Frost

Temperature (°C)

19
21
22
22
22
21
20
19
19
18
18
18
17
17
16
16
16
16
16
16
16
17
18
20

Feels Like (°C)

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

Dew Point (°C)

15
15
15
15
16
16
16
16
16
15
16
15
15
15
15
15
15
15
15
15
15
15
15
15

Relative Humidity (%)

75
70
65
65
68
70
74
78
84
83
88
86
88
90
95
96
96
96
96
98
93
88
81
75

Pressure (mb)

1015
1015
1015
1015
1015
1015
1015
1016
1016
1016
1017
1017
1017
1017
1017
1017
1016
1016
1016
1016
1016
1017
1017
1017

Ozone (du)

260
260
260
260
260
258
257
257
258
260
261
262
262
263
263
263
262
262
263
263
263
264
264
265

Friday 19

Waning Crescent 2%

05:04

18:36

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
08 Bad
09 Bad
10 Bad
11 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)

96
97
99
99
100
98
86
86
88
92
91
94
100
100
100
100
100
100
100
98
98
98
99
99

Low Clouds (% Sky Obscured)

76
66
56
47
40
36
27
18
9
0
7
14
21
30
38
46
57
68
79
61
64
67
53
39

Medium Clouds (% Sky Obscured)

21
13
7
0
0
0
0
9
15
19
18
15
54
19
33
44
12
64
65
79
64
48
57
64

High Clouds (% Sky Obscured)

41
66
80
62
60
51
57
58
64
64
67
87
100
100
100
100
100
100
100
95
95
97
97
98

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
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
11
4
2
4
12
2
2
3
1
0
1
0
15
4
18
13
11
36
30
22
25
26

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
13
12
9
8
5
5
5
5
5
5
5
5
5
5
5
5
4
4
5
6
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

68
64
65
68
66
70
71
82
88
89
93
93
93
95
96
96
96
96
95
95
90
85
81
77

Pressure (mb)

1016
1016
1016
1016
1016
1015
1015
1015
1016
1016
1016
1016
1016
1015
1015
1015
1014
1014
1013
1013
1014
1014
1014
1013

Ozone (du)

265
266
267
268
268
268
268
269
269
269
268
268
268
269
270
271
272
272
273
274
273
273
273
272

Saturday 20

Waning Crescent 2%

06:20

18:46

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
08 Bad
09 Bad
10 Bad
11 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
87
74
60
74
87
100
100
100
100
99
98
93
89
71
68
79
89
100
100
100
100
96
93

Low Clouds (% Sky Obscured)

25
32
39
45
39
33
26
30
34
37
34
30
27
31
33
37
52
68
83
86
89
93
91
91

Medium Clouds (% Sky Obscured)

71
69
67
60
74
87
91
95
96
97
77
58
47
44
44
38
51
46
45
30
20
10
15
19

High Clouds (% Sky Obscured)

100
73
45
27
55
79
100
91
83
77
85
87
85
85
71
68
79
75
50
55
50
55
62
64

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
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

23
27
27
23
24
25
26
37
42
44
46
46
40
40
39
34
55
71
93
95
95
95
95
95

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.5
0.9
1.2
1
0.8
1

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

15
16
19
19
18
18
18
17
14
14
14
14
13
12
12
12
12
12
11
10
12
11
10
11

Dew Point (°C)

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

Relative Humidity (%)

73
70
74
76
78
78
79
78
83
87
90
93
93
96
95
95
92
90
86
83
80
78
75
71

Pressure (mb)

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

Ozone (du)

272
272
272
272
272
273
274
276
278
280
282
288
295
302
306
310
314
313
312
312
313
313
314
316

Sunday 21

New Moon 0%

07:34

18:56

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
08 Bad
09 Bad
10 Bad
11 Bad

Sun - Rise: 06:56, Set: 19:08, Transit: 13:01. Moon - Rise: 07:34, 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)

87
90
95
100
98
96
95
93
93
96
97
97
96
93
93
93
86
80
74
82
91
100
100
100

Low Clouds (% Sky Obscured)

87
90
93
94
93
91
90
91
91
92
93
93
94
93
93
93
86
80
74
81
90
98
98
97

Medium Clouds (% Sky Obscured)

19
19
18
17
18
23
24
29
29
44
49
49
49
44
40
41
36
27
22
21
21
20
20
21

High Clouds (% Sky Obscured)

61
63
64
66
72
74
70
75
80
80
80
75
75
75
80
80
75
75
74
75
70
70
70
70

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

Precipitation Probability (%)

95
83
73
62
52
45
48
56
54
43
40
45
42
36
32
32
29
28
28
33
35
35
42
43

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

9
8
8
8
8
9
9
9
9
9
9
9
9
10
10
10
10
10
10
9
9
9
10
9

Relative Humidity (%)

69
66
64
63
62
70
76
84
87
91
93
91
88
87
87
90
92
90
88
87
88
88
91
88

Pressure (mb)

1008
1008
1008
1009
1009
1009
1010
1011
1011
1012
1013
1013
1013
1013
1014
1014
1014
1014
1014
1015
1015
1016
1016
1017

Ozone (du)

317
318
319
320
321
323
326
328
329
330
331
331
330
330
331
331
331
332
332
333
333
333
333
333

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

Generated: 15/09/25 18:52:28. Forecast: 15/09/25 to 21/09/25. Timezone: UTC+1.00