Clear Outside v1.0 - International Weather Forecasts For Astronomers

Wednesday 17

Waning Crescent 20%

01:13

18:03

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
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad

Sun - Rise: 06:53, Set: 19:22, Transit: 13:08. Moon - Rise: 01:13, Set: 18:03. Civil Dark: 19:55 - 06:21. Nautical Dark: 20:34 - 05:41. Astro Dark: 21:15 - 05:00

Total Clouds (% Sky Obscured)

100
92
91
100
100
100
100
100
100
100
100
100
100
100
84
100
100
100
96
99
99
97
95
97

Low Clouds (% Sky Obscured)

76
82
100
100
100
99
86
95
91
84
93
91
92
92
95
92
92
95
93
85
98
97
88
93

Medium Clouds (% Sky Obscured)

97
100
100
100
75
1
4
0
0
0
0
0
0
0
0
27
0
11
27
53
49
52
63
46

High Clouds (% Sky Obscured)

100
97
99
52
27
0
2
1
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
1
1
3
1
9

Fog (%)

-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
0
0
0
0
0

Precipitation Type

Light Rain
Light Rain
Light Rain
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

Precipitation Probability (%)

100
100
100
100
100
0
0
0
0
0
0
0
0
0
0
0
0
0
0
16
27
24
17
11

Precipitation Amount (mm)

0.4
0.6
0.6
0.2
0.2
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
14
16
18
18
18
19
16
18
20
20
19
19
19
19
18
20
14
14
13
11
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

91
90
90
93
94
92
89
90
92
93
91
92
92
90
92
92
92
92
93
95
96
96
96
95

Pressure (mb)

1019
1018
1018
1018
1017
1017
1016
1016
1016
1016
1017
1017
1017
1017
1017
1017
1017
1017
1017
1016
1017
1017
1017
1017

Ozone (du)

257
257
260
261
260
260
261
260
256
257
258
259
260
262
267
268
268
266
265
257
258
258
259
259

Thursday 18

Waning Crescent 12%

02:35

18:23

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
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad

Sun - Rise: 06:55, Set: 19:20, Transit: 13:07. Moon - Rise: 02:35, Set: 18:23. Civil Dark: 19:53 - 06:22. Nautical Dark: 20:32 - 05:43. Astro Dark: 21:13 - 05:02

Total Clouds (% Sky Obscured)

91
94
99
92
65
81
78
91
91
88
83
84
83
85
78
70
71
72
89
76
77
80
82
82

Low Clouds (% Sky Obscured)

85
84
99
84
65
81
75
81
85
84
81
76
66
74
78
59
50
51
72
58
60
73
57
58

Medium Clouds (% Sky Obscured)

25
48
47
39
2
3
2
31
17
4
3
20
20
17
32
60
45
68
39
10
1
0
1
0

High Clouds (% Sky Obscured)

0
0
0
2
4
4
6
4
66
80
68
34
48
48
43
5
6
20
74
48
53
36
57
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
1
0
0
2
0
1
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 (%)

14
9
11
9
7
8
5
3
6
5
1
1
2
0
2
1
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)

12
11
11
11
11
11
11
11
11
12
14
15
17
17
18
17
16
15
12
10
8
8
7
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

17
17
16
17
16
16
15
15
15
15
15
15
15
15
16
15
16
16
16
16
15
15
15
15

Relative Humidity (%)

93
95
93
95
93
90
89
88
88
82
80
72
69
70
71
71
74
77
84
86
92
95
96
96

Pressure (mb)

1017
1017
1017
1017
1017
1017
1017
1018
1018
1018
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1020
1020
1020

Ozone (du)

260
259
259
259
259
260
260
261
262
262
262
262
262
261
261
260
259
259
261
262
263
263
262
261

Friday 19

Waning Crescent 6%

03:56

18:38

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 OK
18 OK
19 OK
20 Bad
21 Bad
22 Bad
23 Bad

Sun - Rise: 06:56, Set: 19:18, Transit: 13:07. Moon - Rise: 03:56, Set: 18:38. Civil Dark: 19:50 - 06:24. Nautical Dark: 20:29 - 05:45. Astro Dark: 21:10 - 05:04

Total Clouds (% Sky Obscured)

91
79
77
65
72
70
69
60
71
87
90
77
75
75
64
78
56
40
31
37
81
60
100
96

Low Clouds (% Sky Obscured)

74
66
60
64
65
51
60
60
71
74
85
69
66
71
64
58
55
36
30
32
37
36
41
52

Medium Clouds (% Sky Obscured)

2
3
18
3
3
3
3
7
2
7
5
3
2
2
0
1
1
1
0
0
2
4
31
12

High Clouds (% Sky Obscured)

67
48
35
31
42
47
43
3
4
29
30
29
25
21
35
47
23
15
10
15
71
60
100
96

ISS Passover

Visibility (miles)

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

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
1
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

92
96
96
96
96
96
96
98
96
92
83
76
68
65
62
59
61
64
72
82
85
86
86
87

Pressure (mb)

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

Ozone (du)

260
260
260
261
261
261
262
263
263
265
264
265
265
266
267
267
269
270
271
272
272
272
274
274

Saturday 20

Waning Crescent 2%

05:13

18:50

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 OK
19 OK
20 OK
21 OK
22 Bad
23 OK

Sun - Rise: 06:58, Set: 19:16, Transit: 13:07. Moon - Rise: 05:13, Set: 18:50. Civil Dark: 19:48 - 06:25. Nautical Dark: 20:27 - 05:46. Astro Dark: 21:07 - 05:06

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
88
94
68
62
47
47
44
50
28
26
30
35
47
27

Low Clouds (% Sky Obscured)

57
49
61
59
65
55
39
56
38
58
53
69
43
36
44
41
44
50
28
26
30
35
43
27

Medium Clouds (% Sky Obscured)

23
0
1
41
49
59
78
73
65
43
55
35
21
32
7
33
0
0
0
0
0
0
7
15

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
34
25
25
15
2
19
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
6
9
9
9
9
9
9
9

Fog (%)

3
13
32
22
13
9
6
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7

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
1
13
55
49
10
3
18
10
9
9
12
43
31
27
6
10
12
9
17
20

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)

5
4
4
5
5
5
5
6
6
8
13
14
17
17
17
18
17
16
12
11
9
9
8
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

87
89
89
90
89
90
92
93
93
89
83
77
71
65
67
78
82
85
79
80
84
86
84
81

Pressure (mb)

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

Ozone (du)

275
275
274
272
272
272
270
272
272
272
272
273
274
273
272
274
278
283
287
288
288
289
291
292

Sunday 21

New Moon 0%

06:27

19:01

00 OK
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

Sun - Rise: 07:00, Set: 19:13, Transit: 13:06. Moon - Rise: 06:27, Set: 19:01. Civil Dark: 19:46 - 06:27. Nautical Dark: 20:25 - 05:48. Astro Dark: 21:05 - 05:08

Total Clouds (% Sky Obscured)

31
66
55
56
89
93
91
92
91
56
83
99
85
90
98
96
91
84
78
68
52
43
43
46

Low Clouds (% Sky Obscured)

25
44
47
53
70
74
78
67
56
27
43
56
41
48
58
55
39
26
28
29
29
37
25
18

Medium Clouds (% Sky Obscured)

22
22
21
21
29
33
41
47
48
50
55
50
59
56
94
80
86
74
47
30
19
8
14
18

High Clouds (% Sky Obscured)

0
0
0
0
1
1
2
25
44
56
65
65
65
45
24
46
43
36
35
17
2
1
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 (%)

7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7

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 (%)

17
24
25
14
37
38
21
19
16
7
7
6
3
9
19
19
18
13
11
11
11
6
12
11

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

80
81
72
76
83
80
83
88
83
76
64
64
66
63
61
60
67
68
76
83
88
91
93
95

Pressure (mb)

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

Ozone (du)

294
295
295
294
294
294
296
299
303
306
309
311
311
311
311
310
309
309
309
310
311
312
314
316

Monday 22

Waxing Crescent 1%

07:39

19:12

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
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad

Sun - Rise: 07:01, Set: 19:11, Transit: 13:06. Moon - Rise: 07:39, Set: 19:12. Civil Dark: 19:44 - 06:28. Nautical Dark: 20:22 - 05:50. Astro Dark: 21:02 - 05:10

Total Clouds (% Sky Obscured)

47
44
38
34
34
37
37
71
76
81
83
82
86
86
88
91
87
87
85
86
88
90
84
74

Low Clouds (% Sky Obscured)

10
5
5
0
0
0
0
59
68
75
76
78
78
76
75
76
58
44
27
24
21
18
20
17

Medium Clouds (% Sky Obscured)

22
23
24
22
20
17
16
5
5
4
15
26
36
49
67
78
86
87
85
86
83
80
68
55

High Clouds (% Sky Obscured)

0
0
0
1
0
1
0
1
0
0
0
0
1
14
30
49
39
40
30
15
10
5
5
5

ISS Passover

Visibility (miles)

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

Fog (%)

7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7

Precipitation Type

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

Precipitation Probability (%)

9
18
22
19
29
39
42
59
55
42
55
59
60
68
78
85
88
91
95
79
62
40
33
26

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

6
8
8
8
7
8
7
8
16
17
19
19
18
18
17
16
15
14
13
12
14
15
17
16

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

95
84
87
91
90
93
93
96
95
93
92
90
90
89
89
87
87
87
87
89
89
87
88
87

Pressure (mb)

1017
1017
1017
1017
1017
1018
1018
1018
1017
1017
1018
1018
1018
1018
1019
1019
1019
1019
1020
1020
1020
1021
1022
1022

Ozone (du)

316
315
314
315
315
315
316
317
317
316
316
315
314
314
314
314
314
314
315
316
317
318
319
319

Tuesday 23

Waxing Crescent 3%

08:50

19:23

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 OK
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad

Sun - Rise: 07:03, Set: 19:09, Transit: 13:06. Moon - Rise: 08:50, Set: 19:23. Civil Dark: 19:41 - 06:30. Nautical Dark: 20:20 - 05:51. Astro Dark: 21:00 - 05:11

Total Clouds (% Sky Obscured)

68
69
66
60
60
61
62
66
73
83
65
48
32
54
76
98
99
100
100
99
97
96
96
97

Low Clouds (% Sky Obscured)

15
23
37
45
47
36
35
37
40
46
36
28
21
29
38
45
47
52
57
56
59
66
76
80

Medium Clouds (% Sky Obscured)

40
26
13
0
6
11
13
19
21
23
15
8
0
10
20
30
26
26
26
27
28
33
45
37

High Clouds (% Sky Obscured)

5
0
0
0
0
2
3
7
7
5
5
5
5
7
9
11
41
68
94
87
85
89
93
97

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 (%)

7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7

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
Light Rain
Light Rain
None

Precipitation Probability (%)

7
8
7
1
3
3
0
1
0
0
1
1
0
11
13
12
27
32
34
41
58
82
66
44

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

8
7
4
4
4
4
4
4
4
5
5
6
6
6
11
10
10
10
10
10
8
8
8
8

Dew Point (°C)

8
8
7
7
7
7
6
6
7
7
7
7
7
7
7
7
7
7
6
6
6
6
6
7

Relative Humidity (%)

87
87
84
84
82
82
82
82
80
76
73
70
65
61
61
61
61
61
61
62
66
72
78
81

Pressure (mb)

1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1021
1021
1020
1020
1019
1019
1019
1019
1019
1019
1019
1019

Ozone (du)

320
320
320
320
319
319
318
318
317
317
316
316
316
316
315
314
313
313
312
311
311
312
312
312

Welcome to Clear Outside

Forecast for Alphington, Devon, United Kingdom (50.70,-3.52)

Generated: 17/09/25 19:02:07. Forecast: 17/09/25 to 23/09/25. Timezone: UTC+1.00