Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 19

Waning Crescent 6%

03:41

18:28

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

Sun - Rise: 06:45, Set: 19:07, Transit: 12:56. Moon - Rise: 03:41, Set: 18:28. Civil Dark: 19:40 - 06:12. Nautical Dark: 20:20 - 05:32. Astro Dark: 21:01 - 04:50

Total Clouds (% Sky Obscured)

32
50
59
83
55
60
70
81
65
44
41
18
35
41
17
28
80
91
57
65
71
56
58
55

Low Clouds (% Sky Obscured)

32
50
59
71
55
60
70
81
65
44
41
18
35
24
16
28
27
27
40
63
71
54
54
25

Medium Clouds (% Sky Obscured)

32
50
52
50
55
2
2
2
2
2
0
0
0
0
0
0
2
0
0
0
0
4
48
55

High Clouds (% Sky Obscured)

32
50
49
61
55
55
45
60
55
44
32
7
24
13
17
28
80
84
14
5
14
25
7
15

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)

8
8
7
5
5
5
4
4
7
8
9
11
12
13
13
12
10
8
7
6
6
5
4
4

Chance of Frost

Temperature (°C)

15
15
15
15
15
15
14
15
17
19
21
22
23
24
24
23
22
21
19
17
16
16
15
15

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

95
96
96
96
96
95
95
92
82
77
67
50
40
38
39
42
46
54
61
66
69
72
75
75

Pressure (mb)

1021
1020
1020
1019
1019
1019
1019
1019
1019
1019
1018
1017
1017
1016
1016
1015
1015
1015
1015
1015
1016
1015
1015
1014

Ozone (du)

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

Saturday 20

Waning Crescent 2%

04:59

18:39

01 Bad
02 Bad
03 OK
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 OK
21 OK
22 Good
23 Good
00 Good

Sun - Rise: 06:46, Set: 19:04, Transit: 12:55. Moon - Rise: 04:59, Set: 18:39. Civil Dark: 19:38 - 06:13. Nautical Dark: 20:17 - 05:34. Astro Dark: 20:59 - 04:52

Total Clouds (% Sky Obscured)

53
69
46
59
99
99
98
99
98
96
100
100
99
94
100
100
99
76
72
30
24
0
0
0

Low Clouds (% Sky Obscured)

28
45
34
59
72
69
74
74
76
90
38
79
81
90
100
84
82
51
72
30
24
0
0
0

Medium Clouds (% Sky Obscured)

29
38
46
26
60
80
34
36
87
50
77
45
38
46
30
48
33
46
0
0
0
0
0
0

High Clouds (% Sky Obscured)

53
69
46
59
98
96
91
91
84
54
100
95
85
62
100
100
94
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
7
9
9
9
9
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
1
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
Light Rain
None
Very Light Rain
None
Very Light Rain
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
1
18
38
74
27
56
45
60
23
19
2
0
0
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0.5
0
0.3
0
0.3
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

3
4
3
3
3
4
4
4
8
11
12
12
16
16
16
17
15
18
16
17
14
12
11
10

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

70
72
74
68
75
76
80
84
82
79
72
64
56
53
59
65
67
73
79
79
81
86
85
88

Pressure (mb)

1014
1014
1013
1012
1011
1011
1011
1011
1011
1010
1010
1009
1009
1009
1008
1008
1007
1007
1007
1009
1010
1011
1011
1012

Ozone (du)

261
260
260
261
260
261
261
262
261
261
260
261
261
262
263
266
266
272
279
280
282
284
285
287

Sunday 21

New Moon 0%

06:14

18:49

01 OK
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
22 Bad
23 Bad
00 OK

Sun - Rise: 06:48, Set: 19:02, Transit: 12:55. Moon - Rise: 06:14, Set: 18:49. Civil Dark: 19:35 - 06:15. Nautical Dark: 20:15 - 05:35. Astro Dark: 20:56 - 04:54

Total Clouds (% Sky Obscured)

28
40
48
47
81
73
76
86
90
93
96
99
94
97
98
87
80
65
67
69
72
60
43
28

Low Clouds (% Sky Obscured)

28
40
48
47
81
69
76
86
90
80
80
77
64
59
60
50
38
15
19
28
47
40
28
20

Medium Clouds (% Sky Obscured)

0
0
0
0
10
10
16
16
34
59
25
99
78
97
98
87
80
65
67
69
72
60
43
28

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
4
2
11
6
5
4
5
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
7
9
9
9
9
9
9
9
9
9
5
5
5
3
5
8
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
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
None
None

Precipitation Probability (%)

0
1
6
12
29
23
24
30
14
15
17
13
12
15
22
24
40
53
59
68
64
44
31
4

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

8
7
5
4
3
2
3
4
7
9
12
12
12
12
12
13
12
11
9
9
9
9
9
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

91
93
90
91
93
93
95
91
83
75
70
64
57
55
57
58
65
73
83
85
87
88
84
84

Pressure (mb)

1012
1012
1013
1013
1013
1014
1014
1015
1016
1016
1017
1017
1018
1018
1018
1018
1019
1019
1020
1021
1021
1022
1022
1023

Ozone (du)

290
293
294
294
295
296
297
297
297
298
299
300
302
305
305
305
305
308
310
313
313
313
313
314

Monday 22

Waxing Crescent 1%

07:27

18:59

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

Sun - Rise: 06:50, Set: 19:00, Transit: 12:55. Moon - Rise: 07:27, Set: 18:59. Civil Dark: 19:33 - 06:16. Nautical Dark: 20:12 - 05:37. Astro Dark: 20:53 - 04:56

Total Clouds (% Sky Obscured)

21
23
16
20
26
36
40
42
47
48
49
37
48
58
65
54
42
30
22
16
8
13
24
37

Low Clouds (% Sky Obscured)

7
9
9
16
26
36
39
41
47
45
46
37
48
55
57
46
38
30
22
16
8
12
23
33

Medium Clouds (% Sky Obscured)

17
5
1
1
0
0
0
0
0
0
0
0
2
6
8
6
3
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
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
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
2
1
1
1
1
0
0
0
0
0
2
4
4
2
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
12
12
11
11
12
13
14
13
14
15
14
13
13
11
13
10
9
8
8
8
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

85
87
87
85
84
79
78
74
67
59
56
51
48
47
47
47
47
56
56
57
63
66
72
75

Pressure (mb)

1023
1023
1023
1023
1024
1024
1024
1025
1026
1026
1026
1026
1026
1026
1026
1026
1026
1027
1027
1028
1028
1028
1028
1028

Ozone (du)

314
314
313
312
311
313
315
315
314
314
313
312
310
308
308
307
306
305
304
304
304
303
302
301

Tuesday 23

Waxing Crescent 3%

08:40

19:10

01 OK
02 OK
03 OK
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
22 Bad
23 Bad
00 Bad

Sun - Rise: 06:51, Set: 18:58, Transit: 12:54. Moon - Rise: 08:40, Set: 19:10. Civil Dark: 19:31 - 06:18. Nautical Dark: 20:10 - 05:39. Astro Dark: 20:51 - 04:58

Total Clouds (% Sky Obscured)

40
41
44
71
85
100
100
100
100
100
98
96
100
100
98
98
98
90
91
92
98
99
100
100

Low Clouds (% Sky Obscured)

39
40
44
48
49
50
49
51
50
49
49
48
58
69
79
76
73
70
67
63
60
58
56
54

Medium Clouds (% Sky Obscured)

0
2
4
52
63
73
83
90
97
96
88
76
80
76
69
59
55
51
47
38
33
32
27
26

High Clouds (% Sky Obscured)

2
4
6
50
73
94
81
81
76
75
80
80
85
80
55
40
35
25
15
10
15
35
45
55

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
Very Light Rain
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
2
1
0
5
7
9
20
20
19
24
24
22
40
50
59
54
46
35

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

79
84
87
87
85
84
79
70
62
55
51
47
45
44
45
44
50
57
66
71
76
80
79
76

Pressure (mb)

1028
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1026
1026
1025
1025
1025
1024
1024
1024
1024
1025
1025
1025
1025

Ozone (du)

301
301
301
300
300
300
300
300
300
300
300
301
300
301
301
301
301
301
302
302
302
303
303
304

Wednesday 24

Waxing Crescent 7%

09:53

19:22

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
22 Bad
23 Bad
00 Bad

Sun - Rise: 06:53, Set: 18:55, Transit: 12:54. Moon - Rise: 09:53, Set: 19:22. Civil Dark: 19:28 - 06:20. Nautical Dark: 20:08 - 05:41. Astro Dark: 20:48 - 05:00

Total Clouds (% Sky Obscured)

99
99
96
93
93
87
87
84
84
87
93
100
98
96
94
89
87
82
86
91
97
97
97
97

Low Clouds (% Sky Obscured)

53
51
48
46
43
38
48
61
73
82
92
100
96
93
90
88
85
82
81
80
79
85
92
97

Medium Clouds (% Sky Obscured)

24
23
26
28
29
20
5
5
0
0
0
0
5
45
50
57
58
42
17
5
5
10
5
5

High Clouds (% Sky Obscured)

73
88
90
93
93
87
87
84
84
87
93
100
98
96
94
69
36
6
20
30
37
45
53
60

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
Very Light Rain
None
None
None
None

Precipitation Probability (%)

31
24
1
6
7
3
17
19
17
27
31
31
30
24
16
25
26
21
29
49
33
31
28
27

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

73
80
84
90
83
77
71
71
69
67
62
58
53
53
55
55
60
63
67
72
75
80
81
83

Pressure (mb)

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

Ozone (du)

305
305
305
304
305
306
307
306
306
305
306
306
306
306
306
306
306
306
306
305
305
305
305
304

Thursday 25

Waxing Crescent 13%

11:06

19:37

Sun - Rise: 06:55, Set: 18:53, Transit: 12:54. Moon - Rise: 11:06, Set: 19:37. Civil Dark: 19:26 - 06:21. Nautical Dark: 20:05 - 05:42. Astro Dark: 20:46 - 05:02

Total Clouds (% Sky Obscured)

Low Clouds (% Sky Obscured)

Medium Clouds (% Sky Obscured)

High Clouds (% Sky Obscured)

ISS Passover

Visibility (miles)

Fog (%)

Precipitation Type

Precipitation Probability (%)

Precipitation Amount (mm)

Wind Speed/Direction (mph)

Chance of Frost

Temperature (°C)

Feels Like (°C)

Dew Point (°C)

Relative Humidity (%)

Pressure (mb)

Ozone (du)

Forecast for Bray Court, Windsor and Maidenhead, United Kingdom (51.50,-0.70)

Generated: 19/09/25 01:06:59. Forecast: 19/09/25 to 25/09/25. Timezone: UTC+1.00