Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 15

Waning Crescent 30%

23:16

17:54

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 OK
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 OK
18 Bad

Sun - Rise: 06:43, Set: 19:22, Transit: 13:01. Moon - Rise: 23:16, Set: 17:54. Civil Dark: 19:58 - 06:07. Nautical Dark: 20:41 - 05:24. Astro Dark: 21:28 - 04:38

Total Clouds (% Sky Obscured)

80
84
88
90
61
78
90
98
99
100
47
88
65
55
39
41
41
65
61
67
55
45
39
85

Low Clouds (% Sky Obscured)

36
36
34
53
45
54
37
36
38
52
33
11
4
23
28
40
41
38
42
36
24
14
28
12

Medium Clouds (% Sky Obscured)

76
65
72
90
58
70
86
94
78
92
22
80
62
50
26
13
4
0
0
0
0
0
0
10

High Clouds (% Sky Obscured)

80
84
88
90
42
39
45
35
3
7
0
2
8
0
0
0
0
30
30
53
39
42
17
77

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
8
9
7
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 (%)

11
9
8
12
14
36
56
46
53
45
8
4
4
5
6
9
11
11
7
10
5
5
3
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

81
80
81
84
84
84
81
80
84
83
84
80
77
79
75
67
66
67
66
64
62
61
63
69

Pressure (mb)

995
997
998
1000
1000
1001
1002
1003
1003
1004
1005
1006
1007
1008
1009
1010
1010
1011
1011
1012
1012
1012
1012
1013

Ozone (du)

292
292
292
292
292
292
293
292
292
292
296
301
303
302
300
301
303
303
303
303
302
294
290
288

Tuesday 16

Waning Crescent 20%

00:41

18:15

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

Sun - Rise: 06:44, Set: 19:19, Transit: 13:01. Moon - Rise: 00:41, Set: 18:15. Civil Dark: 19:55 - 06:09. Nautical Dark: 20:38 - 05:26. Astro Dark: 21:25 - 04:40

Total Clouds (% Sky Obscured)

100
88
93
100
100
100
100
100
100
100
100
100
100
100
95
78
70
66
56
85
49
84
86
63

Low Clouds (% Sky Obscured)

0
0
6
11
23
35
49
67
68
73
89
100
100
100
91
78
70
66
56
85
49
43
45
63

Medium Clouds (% Sky Obscured)

17
34
33
39
50
98
100
100
100
100
100
100
100
82
74
17
0
0
0
0
1
0
0
0

High Clouds (% Sky Obscured)

99
80
89
100
100
100
100
100
100
100
100
97
82
45
37
37
4
32
36
13
36
79
83
53

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
3
5
9
7
1
0
9
9
7
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
13
0
0
0
0
0
0
0
0
0
0

Precipitation Type

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

Precipitation Probability (%)

0
0
0
0
9
38
65
75
88
95
95
88
70
40
20
5
6
5
5
7
6
6
5
6

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

14
13
12
10
8
6
6
6
6
6
6
7
9
11
12
11
11
12
15
15
16
18
19
20

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

9
8
8
8
8
8
8
9
9
9
9
8
8
8
7
8
11
14
15
15
15
13
13
11

Dew Point (°C)

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

Relative Humidity (%)

71
76
79
81
84
84
84
83
84
85
87
95
96
98
96
98
96
95
90
90
87
86
85
82

Pressure (mb)

1013
1013
1013
1013
1013
1013
1013
1013
1012
1012
1011
1010
1010
1009
1008
1007
1006
1006
1006
1006
1006
1006
1006
1006

Ozone (du)

285
282
278
276
272
267
265
262
263
263
264
264
264
265
264
265
266
266
266
266
265
265
265
263

Wednesday 17

Waning Crescent 12%

02:10

18:29

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

Sun - Rise: 06:46, Set: 19:17, Transit: 13:00. Moon - Rise: 02:10, Set: 18:29. Civil Dark: 19:53 - 06:11. Nautical Dark: 20:36 - 05:28. Astro Dark: 21:22 - 04:42

Total Clouds (% Sky Obscured)

52
53
51
50
79
79
57
79
72
95
98
95
100
100
100
100
100
99
99
100
100
96
93
90

Low Clouds (% Sky Obscured)

52
53
51
50
52
58
54
62
61
69
64
66
58
58
58
61
50
51
67
84
100
94
87
81

Medium Clouds (% Sky Obscured)

0
9
0
26
26
79
57
79
60
92
95
62
40
91
55
4
41
41
46
55
47
35
30
23

High Clouds (% Sky Obscured)

52
50
50
50
76
79
55
78
60
86
94
50
100
100
100
100
99
95
97
98
100
70
40
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 (%)

4
0
1
1
0
0
0
0
0
1
1
8
44
43
28
17
19
11
4
5
12
5
4
3

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

79
87
84
83
82
82
81
80
79
77
79
80
83
87
93
89
89
83
77
77
71
76
78
79

Pressure (mb)

1007
1007
1008
1008
1009
1009
1010
1010
1010
1010
1010
1010
1010
1010
1010
1010
1011
1011
1011
1011
1011
1010
1010
1011

Ozone (du)

261
261
261
262
263
263
265
265
265
263
264
265
266
265
264
264
265
265
266
266
267
266
266
265

Thursday 18

Waning Crescent 6%

03:36

18:39

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

Sun - Rise: 06:48, Set: 19:14, Transit: 13:00. Moon - Rise: 03:36, Set: 18:39. Civil Dark: 19:50 - 06:12. Nautical Dark: 20:33 - 05:30. Astro Dark: 21:19 - 04:44

Total Clouds (% Sky Obscured)

93
97
97
99
95
98
98
99
99
100
100
100
100
100
100
100
100
100
93
86
78
79
83
83

Low Clouds (% Sky Obscured)

75
69
63
58
53
48
60
71
84
86
88
90
84
79
75
65
77
78
69
59
54
35
35
33

Medium Clouds (% Sky Obscured)

17
12
4
24
43
62
67
66
58
95
53
41
93
44
53
43
32
10
28
45
50
48
66
71

High Clouds (% Sky Obscured)

32
60
91
92
87
83
81
80
77
82
85
79
99
81
74
100
65
90
83
68
52
49
49
49

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 (%)

9
16
6
5
4
3
16
25
39
54
56
49
45
37
5
6
8
3
10
32
5
1
3
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)

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

Chance of Frost

Temperature (°C)

16
17
17
17
17
16
16
16
16
16
16
16
17
17
17
17
18
18
18
18
17
18
18
17

Feels Like (°C)

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

Dew Point (°C)

14
13
14
13
13
13
12
13
12
12
14
14
15
15
15
14
13
13
12
11
11
11
9
9

Relative Humidity (%)

83
81
82
78
77
79
77
79
78
79
86
86
87
87
86
81
72
73
64
62
67
65
56
60

Pressure (mb)

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

Ozone (du)

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

Friday 19

Waning Crescent 2%

04:58

18:47

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

Sun - Rise: 06:50, Set: 19:12, Transit: 13:00. Moon - Rise: 04:58, Set: 18:47. Civil Dark: 19:48 - 06:14. Nautical Dark: 20:30 - 05:32. Astro Dark: 21:16 - 04:47

Total Clouds (% Sky Obscured)

89
93
97
97
97
97
97
97
98
97
97
97
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

57
69
78
74
62
68
69
69
70
66
64
64
90
95
100
100
100
100
99
99
98
99
99
100

Medium Clouds (% Sky Obscured)

79
86
93
92
92
92
92
90
88
88
89
91
90
93
95
95
92
88
92
95
96
96
97
97

High Clouds (% Sky Obscured)

22
29
33
22
22
22
33
56
72
51
28
7
82
64
49
53
54
61
60
60
55
63
74
77

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
3
9
1
1
0
0
1
1
1
2
3
4
4
4
6
8

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

Precipitation Probability (%)

13
29
15
18
22
18
41
57
85
95
95
61
76
71
60
60
62
64
80
88
89
94
87
68

Precipitation Amount (mm)

0
0
0
0
0
0
0
0.2
0.5
1
0.8
0.3
0.4
0.4
0.2
0
0
0
0.3
0.4
0.3
0.6
0.5
0.2

Wind Speed/Direction (mph)

8
6
6
5
6
6
6
6
6
5
4
5
3
3
3
3
3
4
4
3
4
6
6
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

65
69
75
78
78
80
80
83
90
93
96
96
98
96
98
96
96
96
96
95
96
95
93
92

Pressure (mb)

1014
1014
1015
1015
1015
1015
1014
1014
1014
1013
1013
1013
1013
1013
1013
1013
1012
1012
1011
1011
1010
1010
1010
1010

Ozone (du)

265
266
267
268
268
269
270
270
270
270
270
272
273
274
275
276
276
275
275
276
277
277
279
281

Saturday 20

Waning Crescent 0%

06:17

18:54

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

Sun - Rise: 06:52, Set: 19:09, Transit: 12:59. Moon - Rise: 06:17, Set: 18:54. Civil Dark: 19:45 - 06:16. Nautical Dark: 20:28 - 05:34. Astro Dark: 21:13 - 04:49

Total Clouds (% Sky Obscured)

100
100
100
90
80
70
65
58
55
71
88
95
97
99
100
100
100
100
100
100
100
100
99
99

Low Clouds (% Sky Obscured)

100
100
100
90
78
70
65
58
55
71
88
93
92
91
90
90
91
91
91
90
89
87
86
84

Medium Clouds (% Sky Obscured)

98
98
99
89
80
70
53
39
27
50
73
92
91
88
85
85
85
85
82
77
75
77
70
69

High Clouds (% Sky Obscured)

84
90
100
90
80
70
65
58
55
71
66
38
43
52
64
64
68
85
90
91
86
72
56
47

ISS Passover

Visibility (miles)

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

Very Light Rain
Very Light Rain
None
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
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 (%)

65
60
47
76
95
95
95
88
95
95
95
95
95
95
95
95
95
95
95
94
87
80
76
93

Precipitation Amount (mm)

0.3
0.2
0
0.4
0.9
1.1
0.7
0.5
0.6
1.1
1.1
1.1
1.2
1.3
1.5
1
0.6
0.7
0.7
0.6
0.5
0.4
0.4
0.8

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

90
90
90
92
92
91
91
91
91
91
91
91
88
90
91
95
93
91
92
90
87
87
90
93

Pressure (mb)

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

Ozone (du)

283
285
288
291
297
304
310
312
314
316
318
319
321
321
320
320
320
321
322
322
322
322
322
322

Sunday 21

New Moon 1%

07:34

19:00

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
12 Bad

Sun - Rise: 06:54, Set: 19:07, Transit: 12:59. Moon - Rise: 07:34, Set: 19:00. Civil Dark: 19:42 - 06:18. Nautical Dark: 20:25 - 05:36. Astro Dark: 21:10 - 04:51

Total Clouds (% Sky Obscured)

99
99
99
99
100
100
96
91
87
91
93
94
93
93
94
95
96
98

Low Clouds (% Sky Obscured)

83
81
80
75
70
67
65
66
69
70
73
73
72
85
85
87
87
83

Medium Clouds (% Sky Obscured)

76
79
86
88
88
89
88
89
87
81
71
60
40
22
5
5
4
4

High Clouds (% Sky Obscured)

63
74
83
85
88
91
69
42
14
39
65
80
75
80
80
80
80
85

ISS Passover

Visibility (miles)

2
2
3
3
4
5
6
7
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

Precipitation Type

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

Precipitation Probability (%)

94
95
95
95
95
86
77
67
55
54
44
24
31
31
29
34
33
32

Precipitation Amount (mm)

0.7
0.7
1.4
1.4
1.1
0.6
0.5
0.3
0.2
0.2
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

12
9
8
8
7
8
8
6
5
5
4
5
5
5
5
7
7
7

Dew Point (°C)

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

Relative Humidity (%)

96
96
93
93
93
93
91
91
88
87
88
90
90
90
88
90
83
77

Pressure (mb)

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

Ozone (du)

323
324
325
326
326
326
326
326
326
325
326
326
327
328
328
329
328
328

Forecast for Richmond, North Yorkshire, United Kingdom (54.40,-1.74)

Generated: 15/09/25 19:44:29. Forecast: 15/09/25 to 21/09/25. Timezone: UTC+1.00